Fri Jun 19 15:30:15 1992 Stu Grossman (grossman at cygnus.com)
+ * configure.in, dbxread.c, hppa-coredep.c, hppa-pinsn.c,
+ hppabsd-core.c, hppabsd-tdep.c, hppabsd-xdep.c, hppahpux-tdep.c,
+ hppahpux-xdep.c, munch, partial-stab.h, tm-hppabsd.h,
+ tm-hppahpux.h, xm-hppabsd.h, xm-hppahpux.h: HPPA merge.
+
* Makefile.in (c-exp.tab.c, m2-exp.tab.c): Filter out bogus extern
declarations of malloc/realloc/free that are inserted by some
versions of yacc.
gdb_host=${host_cpu}
;;
+hppa)
+ case "${host_vendor}" in
+ hp)
+ case "${host_os}" in
+ hpux) gdb_host=hppahpux ;;
+ bsd) gdb_host=hppabsd ;;
+ esac
+ ;;
+ esac
+ ;;
+
### unhandled hosts
#altosgas
#i386v-g
gdb_target=rs6000
;;
+hppa)
+ case "${target_vendor}" in
+ hp)
+ case "${target_os}" in
+ hpux) gdb_target=hppahpux ;;
+ bsd) gdb_target=hppabsd ;;
+ esac
+ ;;
+ esac
+ ;;
+
### unhandled targets
# altosgas
# i386v-g
#define L_INCR 1
#endif
+#ifdef hp9000s800
+/* We don't want to use HP-UX's nlists. */
+#define _NLIST_INCLUDED
+#endif
+
#include <obstack.h>
#include <sys/param.h>
#ifndef NO_SYS_FILE
#include "target.h"
#include "gdbcore.h" /* for bfd stuff */
#include "libbfd.h" /* FIXME Secret internal BFD stuff (bfd_read) */
+#ifdef hp9000s800
+#include "libhppa.h"
+#include "syms.h"
+#else
#include "libaout.h" /* FIXME Secret internal BFD stuff for a.out */
+#endif
#include "symfile.h"
#include "objfiles.h"
#include "buildsym.h"
symbol files. A pointer to this structure is kept in the sym_private
field of the objfile struct. */
+#ifdef hp9000s800
+struct dbx_symfile_info {
+ asection *text_sect; /* Text section accessor */
+ int symcount; /* How many symbols are there in the file */
+ char *stringtab; /* The actual string table */
+ int stringtab_size; /* Its size */
+ off_t symtab_offset; /* Offset in file to symbol table */
+ int hp_symcount;
+ char *hp_stringtab;
+ int hp_stringtab_size;
+ off_t hp_symtab_offset;
+};
+#else
struct dbx_symfile_info {
asection *text_sect; /* Text section accessor */
int symcount; /* How many symbols are there in the file */
off_t symtab_offset; /* Offset in file to symbol table */
int symbol_size; /* Bytes in a single symbol */
};
+#endif
#define DBX_SYMFILE_INFO(o) ((struct dbx_symfile_info *)((o)->sym_private))
#define DBX_TEXT_SECT(o) (DBX_SYMFILE_INFO(o)->text_sect)
#define DBX_STRINGTAB_SIZE(o) (DBX_SYMFILE_INFO(o)->stringtab_size)
#define DBX_SYMTAB_OFFSET(o) (DBX_SYMFILE_INFO(o)->symtab_offset)
#define DBX_SYMBOL_SIZE(o) (DBX_SYMFILE_INFO(o)->symbol_size)
+#ifdef hp9000s800
+#define HP_SYMCOUNT(o) (DBX_SYMFILE_INFO(o)->hp_symcount)
+#define HP_STRINGTAB(o) (DBX_SYMFILE_INFO(o)->hp_stringtab)
+#define HP_STRINGTAB_SIZE(o) (DBX_SYMFILE_INFO(o)->hp_stringtab_size)
+#define HP_SYMTAB_OFFSET(o) (DBX_SYMFILE_INFO(o)->hp_symtab_offset)
+#endif
/* Each partial symbol table entry contains a pointer to private data for the
read_symtab() function to use when expanding a partial symbol table entry
if (mainline || objfile->global_psymbols.size == 0 || objfile->static_psymbols.size == 0)
init_psymbol_list (objfile);
+#ifdef hp9000s800
+ symbol_size = obj_dbx_symbol_entry_size (sym_bfd);
+#else
symbol_size = DBX_SYMBOL_SIZE (objfile);
+#endif
symbol_table_offset = DBX_SYMTAB_OFFSET (objfile);
pending_blocks = 0;
xmmalloc (objfile -> md, sizeof (struct dbx_symfile_info));
/* FIXME POKING INSIDE BFD DATA STRUCTURES */
+#ifdef hp9000s800
+#define STRING_TABLE_OFFSET (sym_bfd->origin + obj_dbx_str_filepos (sym_bfd))
+#define SYMBOL_TABLE_OFFSET (sym_bfd->origin + obj_dbx_sym_filepos (sym_bfd))
+#define HP_STRING_TABLE_OFFSET (sym_bfd->origin + obj_hp_str_filepos (sym_bfd))
+#define HP_SYMBOL_TABLE_OFFSET (sym_bfd->origin + obj_hp_sym_filepos (sym_bfd))
+#else
#define STRING_TABLE_OFFSET (sym_bfd->origin + obj_str_filepos (sym_bfd))
#define SYMBOL_TABLE_OFFSET (sym_bfd->origin + obj_sym_filepos (sym_bfd))
+#endif
/* FIXME POKING INSIDE BFD DATA STRUCTURES */
DBX_TEXT_SECT (objfile) = bfd_get_section_by_name (sym_bfd, ".text");
error ("Can't find .text section in symbol file");
DBX_SYMBOL_SIZE (objfile) = obj_symbol_entry_size (sym_bfd);
- DBX_SYMCOUNT (objfile) = bfd_get_symcount (sym_bfd);
+#ifdef hp9000s800
+ HP_SYMCOUNT (objfile) = obj_hp_sym_count (sym_bfd);
+ DBX_SYMCOUNT (objfile) = obj_dbx_sym_count (sym_bfd);
+#else
+ DBX_SYMCOUNT (objfile) = bfd_get_symcount (sym_bfd);
+#endif
DBX_SYMTAB_OFFSET (objfile) = SYMBOL_TABLE_OFFSET;
/* Read the string table and stash it away in the psymbol_obstack. It is
however at least check to see if the size is zero or some negative
value. */
+#ifdef hp9000s800
+ DBX_STRINGTAB_SIZE (objfile) = obj_dbx_stringtab_size (sym_bfd);
+ HP_STRINGTAB_SIZE (objfile) = obj_hp_stringtab_size (sym_bfd);
+#else
val = bfd_seek (sym_bfd, STRING_TABLE_OFFSET, L_SET);
if (val < 0)
perror_with_name (name);
perror_with_name (name);
DBX_STRINGTAB_SIZE (objfile) = bfd_h_get_32 (sym_bfd, size_temp);
+#endif
+
if (DBX_STRINGTAB_SIZE (objfile) <= 0)
error ("ridiculous string table size (%d bytes).",
DBX_STRINGTAB_SIZE (objfile));
DBX_STRINGTAB (objfile) =
(char *) obstack_alloc (&objfile -> psymbol_obstack,
DBX_STRINGTAB_SIZE (objfile));
+#ifdef hp9000s800
+ if (HP_STRINGTAB_SIZE (objfile) <= 0)
+ error ("ridiculous string table size (%d bytes).",
+ HP_STRINGTAB_SIZE (objfile));
+
+ HP_STRINGTAB (objfile) =
+ (char *) obstack_alloc (&objfile -> psymbol_obstack,
+ HP_STRINGTAB_SIZE (objfile));
+#endif
/* Now read in the string table in one big gulp. */
sym_bfd);
if (val != DBX_STRINGTAB_SIZE (objfile))
perror_with_name (name);
+#ifdef hp9000s800
+ val = bfd_seek (sym_bfd, HP_STRING_TABLE_OFFSET, L_SET);
+ if (val < 0)
+ perror_with_name (name);
+ val = bfd_read (HP_STRINGTAB (objfile), HP_STRINGTAB_SIZE (objfile), 1,
+ sym_bfd);
+ if (val != HP_STRINGTAB_SIZE (objfile))
+ perror_with_name (name);
+#endif
+#ifdef hp9000s800
+ HP_SYMTAB_OFFSET (objfile) = HP_SYMBOL_TABLE_OFFSET;
+#endif
}
/* Perform any local cleanups required when we are done with a particular
symbuf_end = nbytes / symbol_size;
symbuf_idx = 0;
}
+#ifdef hp9000s800
+/* same as above for the HP symbol table */
+
+static struct symbol_dictionary_record hp_symbuf[4096];
+static int hp_symbuf_idx;
+static int hp_symbuf_end;
+
+static int
+fill_hp_symbuf (sym_bfd)
+ bfd *sym_bfd;
+{
+ int nbytes = bfd_read ((PTR)hp_symbuf, sizeof (hp_symbuf), 1, sym_bfd);
+ if (nbytes <= 0)
+ error ("error or end of file reading symbol table");
+ hp_symbuf_end = nbytes / sizeof (struct symbol_dictionary_record);
+ hp_symbuf_idx = 0;
+ return 1;
+}
+#endif
#define SWAP_SYMBOL(symp, abfd) \
{ \
/* Current best guess is that there are approximately a twentieth
of the total symbols (in a debugging file) are global or static
oriented symbols */
+#ifdef hp9000s800
+ objfile -> global_psymbols.size = (DBX_SYMCOUNT (objfile) +
+ HP_SYMCOUNT (objfile)) / 10;
+ objfile -> static_psymbols.size = (DBX_SYMCOUNT (objfile) +
+ HP_SYMCOUNT (objfile)) / 10;
+#else
objfile -> global_psymbols.size = DBX_SYMCOUNT (objfile) / 10;
objfile -> static_psymbols.size = DBX_SYMCOUNT (objfile) / 10;
+#endif
objfile -> global_psymbols.next = objfile -> global_psymbols.list = (struct partial_symbol *)
xmmalloc (objfile -> md, objfile -> global_psymbols.size * sizeof (struct partial_symbol));
objfile -> static_psymbols.next = objfile -> static_psymbols.list = (struct partial_symbol *)
CORE_ADDR last_o_file_start = 0;
struct cleanup *old_chain;
bfd *abfd;
+#ifdef hp9000s800
+ /* HP stuff */
+ struct symbol_dictionary_record *hp_bufp;
+ int hp_symnum;
+ /* A hack: the first text symbol in the debugging library */
+ int dbsubc_addr = 0;
+#endif
+
/* End of the text segment of the executable file. */
CORE_ADDR end_of_text_addr;
file_string_table_offset = 0;
next_file_string_table_offset = 0;
+#ifdef hp9000s800
+ stringtab_global = HP_STRINGTAB (objfile);
+#else
stringtab_global = DBX_STRINGTAB (objfile);
+#endif
pst = (struct partial_symtab *) 0;
symbuf_end = symbuf_idx = 0;
next_symbol_text_func = dbx_next_symbol_text;
+#ifdef hp9000s800
+ /* On pa machines, the global symbols are all in the regular HP-UX
+ symbol table. Read them in first. */
+
+ hp_symbuf_end = hp_symbuf_idx = 0;
+ bfd_seek (abfd, HP_SYMTAB_OFFSET (objfile), 0);
+
+ for (hp_symnum = 0; hp_symnum < HP_SYMCOUNT (objfile); hp_symnum++)
+ {
+ int dbx_type;
+
+ QUIT;
+ if (hp_symbuf_idx == hp_symbuf_end)
+ fill_hp_symbuf (abfd);
+ hp_bufp = &hp_symbuf[hp_symbuf_idx++];
+ switch (hp_bufp->symbol_type)
+ {
+ case ST_SYM_EXT:
+ case ST_ARG_EXT:
+ continue;
+ case ST_CODE:
+ case ST_PRI_PROG:
+ case ST_SEC_PROG:
+ case ST_ENTRY:
+ case ST_MILLICODE:
+ dbx_type = N_TEXT;
+ hp_bufp->symbol_value &= ~3; /* clear out permission bits */
+ break;
+ case ST_DATA:
+ dbx_type = N_DATA;
+ break;
+#ifdef KERNELDEBUG
+ case ST_ABSOLUTE:
+ {
+ extern int kernel_debugging;
+ if (!kernel_debugging)
+ continue;
+ dbx_type = N_ABS;
+ break;
+ }
+#endif
+ default:
+ continue;
+ }
+ /* Use the address of dbsubc to finish the last psymtab. */
+ if (hp_bufp->symbol_type == ST_CODE &&
+ HP_STRINGTAB (objfile)[hp_bufp->name.n_strx] == '_' &&
+ !strcmp (HP_STRINGTAB (objfile) + hp_bufp->name.n_strx, "_dbsubc"))
+ dbsubc_addr = hp_bufp->symbol_value;
+ if (hp_bufp->symbol_scope == SS_UNIVERSAL)
+ {
+ if (hp_bufp->name.n_strx > HP_STRINGTAB_SIZE (objfile))
+ error ("Invalid symbol data; bad HP string table offset: %d",
+ hp_bufp->name.n_strx);
+ /* A hack, but gets the job done. */
+ if (!strcmp (hp_bufp->name.n_strx + HP_STRINGTAB (objfile),
+ "$START$"))
+ objfile -> ei.entry_file_lowpc = hp_bufp->symbol_value;
+ if (!strcmp (hp_bufp->name.n_strx + HP_STRINGTAB (objfile),
+ "_sr4export"))
+ objfile -> ei.entry_file_highpc = hp_bufp->symbol_value;
+ record_minimal_symbol (hp_bufp->name.n_strx + HP_STRINGTAB (objfile),
+ hp_bufp->symbol_value, dbx_type | N_EXT,
+ objfile);
+ }
+ }
+ bfd_seek (abfd, DBX_SYMTAB_OFFSET (objfile), 0);
+#endif
+
for (symnum = 0; symnum < DBX_SYMCOUNT (objfile); symnum++)
{
/* Get the symbol for this run and pull out some info */
}
/* If there's stuff to be cleaned up, clean it up. */
+#ifndef hp9000s800
if (DBX_SYMCOUNT (objfile) > 0 /* We have some syms */
/*FIXME, does this have a bug at start address 0? */
&& last_o_file_start
objfile -> ei.entry_file_lowpc = last_o_file_start;
objfile -> ei.entry_file_highpc = bufp->n_value;
}
+#endif
if (pst)
{
+#ifdef hp9000s800
+ end_psymtab (pst, psymtab_include_list, includes_used,
+ symnum * symbol_size, dbsubc_addr,
+ dependency_list, dependencies_used);
+#else
end_psymtab (pst, psymtab_include_list, includes_used,
symnum * symbol_size, end_of_text_addr,
dependency_list, dependencies_used);
+#endif
}
free_bincl_list (objfile);
buildsym_init ();
old_chain = make_cleanup (really_free_pendings, 0);
file_string_table_offset = FILE_STRING_OFFSET (pst);
+#ifdef hp9000s800
+ symbol_size = obj_dbx_symbol_entry_size (sym_bfd);
+#else
symbol_size = SYMBOL_SIZE (pst);
+#endif
/* Read in this file's symbols */
bfd_seek (pst->objfile->obfd, SYMBOL_OFFSET (pst), L_SET);
current_objfile = objfile;
subfile_stack = 0;
+#ifdef hp9000s800
+ stringtab_global = HP_STRINGTAB (objfile);
+#else
stringtab_global = DBX_STRINGTAB (objfile);
+#endif
last_source_file = 0;
abfd = objfile->obfd;
NULL /* next: pointer to next struct sym_fns */
};
+static struct sym_fns hppa_sym_fns =
+{
+ "hppa", /* sym_name: name or name prefix of BFD target type */
+ 4, /* sym_namelen: number of significant sym_name chars */
+ dbx_new_init, /* sym_new_init: init anything gbl to entire symtab */
+ dbx_symfile_init, /* sym_init: read initial info, setup for sym_read() */
+ dbx_symfile_read, /* sym_read: read a symbol file into symtab */
+ dbx_symfile_finish, /* sym_finish: finished with file, cleanup */
+ NULL /* next: pointer to next struct sym_fns */
+};
+
void
_initialize_dbxread ()
{
add_symtab_fns(&sunos_sym_fns);
add_symtab_fns(&aout_sym_fns);
add_symtab_fns(&bout_sym_fns);
+ add_symtab_fns(&hppa_sym_fns);
}
--- /dev/null
+/* Extract registers from a "standard" core file, for GDB.
+ Copyright (C) 1988-1991 Free Software Foundation, Inc.
+
+This file is part of GDB.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/* core.c is supposed to be the more machine-independent aspects of this;
+ this file is more machine-specific. */
+
+#include "defs.h"
+#include "gdbcore.h"
+#include <stdio.h>
+
+/* These are needed on various systems to expand REGISTER_U_ADDR. */
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/dir.h>
+#include <sys/file.h>
+#include <sys/stat.h>
+#include <sys/user.h>
+#ifndef USG
+#include <sys/ptrace.h>
+#endif
+
+
+/* Extract the register values out of the core file and store
+ them where `read_register' will find them.
+
+ CORE_REG_SECT points to the register values themselves, read into memory.
+ CORE_REG_SIZE is the size of that area.
+ WHICH says which set of registers we are handling (0 = int, 2 = float
+ on machines where they are discontiguous).
+ REG_ADDR is the offset from u.u_ar0 to the register values relative to
+ core_reg_sect. This is used with old-fashioned core files to
+ locate the registers in a large upage-plus-stack ".reg" section.
+ Original upage address X is at location core_reg_sect+x+reg_addr.
+ */
+
+void
+fetch_core_registers (core_reg_sect, core_reg_size, which, reg_addr)
+ char *core_reg_sect;
+ unsigned core_reg_size;
+ int which;
+ unsigned reg_addr;
+{
+ register int regno;
+ register unsigned int addr;
+ int bad_reg = -1;
+ register reg_ptr = -reg_addr; /* Original u.u_ar0 is -reg_addr. */
+
+ /* If u.u_ar0 was an absolute address in the core file, relativize it now,
+ so we can use it as an offset into core_reg_sect. When we're done,
+ "register 0" will be at core_reg_sect+reg_ptr, and we can use
+ register_addr to offset to the other registers. If this is a modern
+ core file without a upage, reg_ptr will be zero and this is all a big
+ NOP. */
+ if (reg_ptr > core_reg_size)
+ reg_ptr -= KERNEL_U_ADDR;
+ if (reg_ptr > core_reg_size)
+ fprintf (stderr, "Can't find registers in core file\n");
+
+ for (regno = 0; regno < NUM_REGS; regno++)
+ {
+ addr = register_addr (regno, reg_ptr);
+ if (addr >= core_reg_size) {
+ if (bad_reg < 0)
+ bad_reg = regno;
+ } else {
+ if (regno == PCOQ_HEAD_REGNUM || regno == PCOQ_TAIL_REGNUM)
+ core_reg_sect[addr +3] &= ~0x3;
+ supply_register (regno, core_reg_sect + addr);
+ }
+ }
+ if (bad_reg > 0)
+ {
+ error ("Register %s not found in core file.", reg_names[bad_reg]);
+ }
+}
+
+
+#ifdef REGISTER_U_ADDR
+
+/* Return the address in the core dump or inferior of register REGNO.
+ BLOCKEND is the address of the end of the user structure. */
+
+unsigned int
+register_addr (regno, blockend)
+ int regno;
+ int blockend;
+{
+ int addr;
+
+ if (regno < 0 || regno >= NUM_REGS)
+ error ("Invalid register number %d.", regno);
+
+ REGISTER_U_ADDR (addr, blockend, regno);
+
+ return addr;
+}
+
+#endif /* REGISTER_U_ADDR */
+
+
+
+
+
+
+
--- /dev/null
+/* Disassembler for the PA-RISC. Somewhat derived from sparc-pinsn.c.
+ Copyright (C) 1989, 1990 Free Software Foundation, Inc.
+
+ Contributed by the Center for Software Science at the
+ University of Utah (pa-gdb-bugs@cs.utah.edu).
+
+This file is part of GDB, the GNU disassembler.
+
+GDB is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 1, or (at your option)
+any later version.
+
+GDB is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GDB; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <stdio.h>
+
+#include "defs.h"
+#include "symtab.h"
+#include "opcode/hppa.h"
+
+char *control_reg[] = {"rctr", "cr1", "cr2", "cr3", "cr4", "cr5", "cr6", "cr7",
+ "pidr1", "pidr2", "ccr", "sar", "pidr3", "pidr4",
+ "iva", "eiem", "itmr", "pcsq", "pcoq", "iir", "isr",
+ "ior", "ipsw", "eirr", "tr0", "tr1", "tr2", "tr3",
+ "tr4", "tr5", "tr6", "tr7"
+ };
+
+char *compare_cond_names[] = {"", ",=", ",<", ",<=", ",<<", ",<<=", ",sv",
+ ",od", ",tr", ",<>", ",>=", ",>", ",>>=",
+ ",>>", ",nsv", ",ev"
+ };
+char *add_cond_names[] = {"", ",=", ",<", ",<=", ",nuv", ",znv", ",sv",
+ ",od", ",tr", ",<>", ",>=", ",>", ",uv",
+ ",vnz", ",nsv", ",ev"
+ };
+char *logical_cond_names[] = {"", ",=", ",<", ",<=", 0, 0, 0, ",od",
+ ",tr", ",<>", ",>=", ",>", 0, 0, 0, ",ev"};
+char *unit_cond_names[] = {"", 0, ",sbz", ",shz", ",sdc", 0, ",sbc", ",shc",
+ ",tr", 0, ",nbz", ",nhz", ",ndc", 0, ",nbc", ",nhc"
+ };
+char *shift_cond_names[] = {"", ",=", ",<", ",od", ",tr", ",<>", ",>=", ",ev"};
+
+char *index_compl_names[] = {"", ",m", ",s", ",sm"};
+char *short_ldst_compl_names[] = {"", ",ma", "", ",mb"};
+char *short_bytes_compl_names[] = {"", ",b,m", ",e", ",e,m"};
+char *float_format_names[] = {",sgl", ",dbl", ",quad"};
+char *float_comp_names[] =
+{",false?", ",false", ",?", ",!<=>", ",=", ",=t", ",?=", ",!<>",
+ ",!?>=", ",<", ",?<", ",!>=", ",!?>", ",<=", ",?<=", ",!>",
+ ",!?<=", ",>", ",?>", ",!<=", ",!?<", ",>=", ",?>=", ",!<",
+ ",!?=", ",<>", ",!=", ",!=t", ",!?", ",<=>", ",true?", ",true"
+ };
+
+/* For a bunch of different instructions form an index into a
+ completer name table. */
+#define GET_COMPL(insn) (GET_FIELD (insn, 26, 26) | \
+ GET_FIELD (insn, 18, 18) << 1)
+
+#define GET_COND(insn) (GET_FIELD ((insn), 16, 18) + \
+ (GET_FIELD ((insn), 19, 19) ? 8 : 0))
+
+void fput_reg (), fput_const ();
+
+/* Print one instruction from MEMADDR on STREAM. */
+int
+print_insn (memaddr, stream)
+ CORE_ADDR memaddr;
+ FILE *stream;
+{
+ unsigned int insn, i, op;
+
+ read_memory (memaddr, &insn, sizeof (insn));
+
+ for (i = 0; i < NUMOPCODES; ++i)
+ {
+ const struct pa_opcode *opcode = &pa_opcodes[i];
+ if ((insn & opcode->mask) == opcode->match)
+ {
+ register const char *s;
+
+ fputs_filtered (opcode->name, stream);
+
+ if (!index ("cCY<?!@-+&U>~nZFM", opcode->args[0]))
+ fputs_filtered (" ", stream);
+ for (s = opcode->args; *s != '\0'; ++s)
+ {
+ switch (*s)
+ {
+ case 'x':
+ fput_reg (GET_FIELD (insn, 11, 15), stream);
+ break;
+ case 'X':
+ if (GET_FIELD (insn, 25, 25))
+ fput_reg_r (GET_FIELD (insn, 11, 15), stream);
+ else
+ fput_reg (GET_FIELD (insn, 11, 15), stream);
+ break;
+ case 'b':
+ fput_reg (GET_FIELD (insn, 6, 10), stream);
+ break;
+ case '^':
+ fput_creg (GET_FIELD (insn, 6, 10), stream);
+ break;
+ case 'E':
+ if (GET_FIELD (insn, 25, 25))
+ fput_reg_r (GET_FIELD (insn, 6, 10), stream);
+ else
+ fput_reg (GET_FIELD (insn, 6, 10), stream);
+ break;
+ case 't':
+ fput_reg (GET_FIELD (insn, 27, 31), stream);
+ break;
+ case 'v':
+ if (GET_FIELD (insn, 25, 25))
+ fput_reg_r (GET_FIELD (insn, 27, 31), stream);
+ else
+ fput_reg (GET_FIELD (insn, 27, 31), stream);
+ break;
+ case '4':
+ fput_creg (GET_FIELD (insn, 6, 10), stream);
+ break;
+ case '6':
+ fput_reg (GET_FIELD (insn, 11, 15), stream);
+ break;
+ case '7':
+ fput_reg (GET_FIELD (insn, 27, 31), stream);
+ break;
+ case '8':
+ fput_reg (GET_FIELD (insn, 16, 20), stream);
+ break;
+ case '9':
+ fput_reg (GET_FIELD (insn, 21, 25), stream);
+ break;
+ case '5':
+ fput_const (extract_5_load (insn), stream);
+ break;
+ /* case 's': */
+ case 'S':
+ fprintf_filtered (stream, "sr%d", extract_3 (insn));
+ break;
+ case 'c':
+ fprintf_filtered (stream, "%s ",
+ index_compl_names[GET_COMPL (insn)]);
+ break;
+ case 'C':
+ fprintf_filtered (stream, "%s ",
+ short_ldst_compl_names[GET_COMPL (insn)]);
+ break;
+ case 'Y':
+ fprintf_filtered (stream, "%s ",
+ short_bytes_compl_names[GET_COMPL (insn)]);
+ break;
+ /* these four conditions are for the set of instructions
+ which distinguish true/false conditions by opcode rather
+ than by the 'f' bit (sigh): comb, comib, addb, addib */
+ case '<':
+ fputs_filtered (compare_cond_names[GET_FIELD (insn, 16, 18)],
+ stream);
+ break;
+ case '?':
+ fputs_filtered (compare_cond_names[GET_FIELD (insn, 16, 18) + 8],
+ stream);
+ break;
+ case '!':
+ fputs_filtered (add_cond_names[GET_FIELD (insn, 16, 18)],
+ stream);
+ break;
+ case '@':
+ fputs_filtered (add_cond_names[GET_FIELD (insn, 16, 18) + 8],
+ stream);
+ break;
+ case '-':
+ fprintf_filtered (stream, "%s ",
+ compare_cond_names[GET_COND (insn)]);
+ break;
+ case '+':
+ fprintf_filtered (stream, "%s ",
+ add_cond_names[GET_FIELD (insn, 16, 18)]);
+ break;
+
+ case '&':
+ fprintf_filtered (stream, "%s ",
+ logical_cond_names[GET_COND (insn)]);
+ break;
+ case 'U':
+ fprintf_filtered (stream, "%s ",
+ unit_cond_names[GET_COND (insn)]);
+ break;
+ case '>':
+ case '~':
+ fprintf_filtered (stream, "%s ",
+ shift_cond_names[GET_FIELD (insn, 16, 18)]);
+ break;
+ case 'V':
+ fput_const (extract_5_store (insn), stream);
+ break;
+ case 'i':
+ fput_const (extract_11 (insn), stream);
+ break;
+ case 'j':
+ fput_const (extract_14 (insn), stream);
+ break;
+ case 'k':
+ fput_const (extract_21 (insn), stream);
+ break;
+ case 'n':
+ if (insn & 0x2)
+ fprintf_filtered (stream, ",n ");
+ else
+ fprintf_filtered (stream, " ");
+ break;
+ case 'w':
+ print_address (memaddr + 8 + extract_12 (insn), stream);
+ break;
+ case 'W':
+ /* don't interpret an address if it's an external branch
+ instruction. */
+ op = GET_FIELD (insn, 0, 5);
+ if (op != 0x38 /* be */ && op != 0x39 /* ble */)
+ print_address (memaddr + 8 + extract_17 (insn), stream);
+ else
+ fput_const (extract_17 (insn), stream);
+ break;
+ case 'B':
+ {
+ int space;
+ if (space = GET_FIELD (insn, 16, 17))
+ fprintf_filtered (stream, "sr%d,", space);
+ fput_reg (GET_FIELD (insn, 6, 10), stream);
+ break;
+ }
+ case 'p':
+ fprintf_filtered (stream, "%d",
+ 31 - GET_FIELD (insn, 22, 26));
+ break;
+ case 'P':
+ fprintf_filtered (stream, "%d",
+ GET_FIELD (insn, 22, 26));
+ break;
+ case 'T':
+ fprintf_filtered (stream, "%d",
+ 32 - GET_FIELD (insn, 27, 31));
+ break;
+ case 'A':
+ fput_const (GET_FIELD (insn, 6, 18), stream);
+ break;
+ case 'Z':
+ if (GET_FIELD (insn, 26, 26))
+ fprintf_filtered (stream, ",m ");
+ else
+ fprintf_filtered (stream, " ");
+ break;
+ case 'D':
+ fput_const (GET_FIELD (insn, 6, 31), stream);
+ break;
+ case 'f':
+ fprintf_filtered (stream, ",%d", GET_FIELD (insn, 23, 25));
+ break;
+ case 'O':
+ fput_const ((GET_FIELD (insn, 6,20) << 5 |
+ GET_FIELD (insn, 27, 31)), stream);
+ break;
+ case 'o':
+ fput_const (GET_FIELD (insn, 6, 20), stream);
+ break;
+ case '2':
+ fput_const ((GET_FIELD (insn, 6, 22) << 5 |
+ GET_FIELD (insn, 27, 31)), stream);
+ break;
+ case '1':
+ fput_const ((GET_FIELD (insn, 11, 20) << 5 |
+ GET_FIELD (insn, 27, 31)), stream);
+ break;
+ case '0':
+ fput_const ((GET_FIELD (insn, 16, 20) << 5 |
+ GET_FIELD (insn, 27, 31)), stream);
+ break;
+ case 'u':
+ fprintf_filtered (stream, "%d", GET_FIELD (insn, 23, 25));
+ break;
+ case 'F':
+ /* if no destination completer, need a space here */
+ if (GET_FIELD (insn, 21, 22) == 1)
+ fputs_filtered (float_format_names[GET_FIELD (insn, 19, 20)],
+ stream);
+ else
+ fprintf_filtered (stream, "%s ",
+ float_format_names[GET_FIELD
+ (insn, 19, 20)]);
+ break;
+ case 'G':
+ fprintf_filtered (stream, "%s ",
+ float_format_names[GET_FIELD (insn,
+ 17, 18)]);
+ break;
+ case 'H':
+ fputs_filtered (float_format_names[GET_FIELD
+ (insn, 26, 26)], stream);
+ break;
+ case 'M':
+ fputs_filtered (float_comp_names[GET_FIELD (insn, 27, 31)],
+ stream);
+ break;
+ case '}':
+ fprintf_filtered (stream, "fp%d", GET_FIELD (insn, 6, 10));
+ break;
+ case '|':
+ fprintf_filtered (stream, "fp%d", GET_FIELD (insn, 11, 15));
+ break;
+ case '{':
+ if (GET_FIELD (insn, 23, 25) == 0)
+ fprintf_filtered (stream, "fp%d",
+ GET_FIELD (insn, 27, 31));
+ else
+ fprintf_filtered (stream, "cp%d",
+ GET_FIELD (insn, 27, 31));
+ break;
+ default:
+ fprintf_filtered (stream, "%c", *s);
+ break;
+ }
+ }
+ return sizeof(insn);
+ }
+ }
+ fprintf_filtered (stream, "%#8x", insn);
+ return sizeof(insn);
+}
+
+/* Utility function to print registers */
+
+void
+fput_reg (reg, stream)
+ unsigned reg;
+ FILE *stream;
+{
+ if (reg)
+ fputs_filtered (reg_names[reg], stream);
+ else
+ fputs_filtered ("r0", stream);
+}
+
+void
+fput_reg_r (reg, stream)
+ unsigned reg;
+ FILE *stream;
+{
+ if (reg)
+ fputs_filtered (reg_names[reg], stream);
+ else
+ fputs_filtered ("r0", stream);
+ fputs_filtered ("R", stream);
+}
+
+void
+fput_creg (reg, stream)
+ unsigned reg;
+ FILE *stream;
+{
+ fputs_filtered (control_reg[reg], stream);
+}
+
+/* print constants with sign */
+
+void
+fput_const (num, stream)
+ unsigned num;
+ FILE *stream;
+{
+ if ((int)num < 0)
+ fprintf_filtered (stream, "-%x", -(int)num);
+ else
+ fprintf_filtered (stream, "%x", num);
+}
--- /dev/null
+/* Machine-dependent code which would otherwise be in core.c
+ for GDB, the GNU debugger. This code is for the HP PA-RISC cpu.
+ Copyright (C) 1986, 1987, 1989, 1990, 1991 Free Software Foundation, Inc.
+
+ Contributed by the Center for Software Science at the
+ University of Utah (pa-gdb-bugs@cs.utah.edu).
+
+This file is part of GDB.
+
+GDB is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 1, or (at your option)
+any later version.
+
+GDB is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GDB; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <stdio.h>
+#include "defs.h"
+#include "param.h"
+#include "frame.h"
+#include "inferior.h"
+
+#ifdef USG
+#include <sys/types.h>
+#endif
+
+#include <sys/param.h>
+#include <sys/dir.h>
+#include <signal.h>
+#include <sys/ioctl.h>
+/* #include <fcntl.h> Can we live without this? */
+
+#ifndef hpux
+#include <a.out.h>
+#include <machine/pcb.h>
+#include <sys/time.h>
+#include "/usr/src/sys/hpux/hpux.h"
+#define USRSTACK 0x68FF3000
+#else
+#include <sys/user.h> /* After a.out.h */
+#endif
+
+#include <sys/file.h>
+#include <sys/stat.h>
+#include <sys/ptrace.h>
+
+#ifndef hpux
+#undef USIZE
+#undef UPAGES
+
+#define USIZE 3
+#define UPAGES 7
+#endif
+
+extern int errno;
+
+/* File names of core file and executable file. */
+
+extern char *corefile;
+extern char *execfile;
+
+/* Descriptors on which core file and executable file are open.
+ Note that the execchan is closed when an inferior is created
+ and reopened if the inferior dies or is killed. */
+
+extern int corechan;
+extern int execchan;
+
+/* Last modification time of executable file.
+ Also used in source.c to compare against mtime of a source file. */
+
+extern int exec_mtime;
+
+/* Virtual addresses of bounds of the two areas of memory in the core file. */
+
+extern CORE_ADDR data_start;
+extern CORE_ADDR data_end;
+extern CORE_ADDR stack_start;
+extern CORE_ADDR stack_end;
+
+/* Virtual addresses of bounds of two areas of memory in the exec file.
+ Note that the data area in the exec file is used only when there is no core file. */
+
+extern CORE_ADDR text_start;
+extern CORE_ADDR text_end;
+
+extern CORE_ADDR exec_data_start;
+extern CORE_ADDR exec_data_end;
+
+/* Address in executable file of start of text area data. */
+
+extern int text_offset;
+
+/* Address in executable file of start of data area data. */
+
+extern int exec_data_offset;
+
+/* Address in core file of start of data area data. */
+
+extern int data_offset;
+
+/* Address in core file of start of stack area data. */
+
+extern int stack_offset;
+
+extern struct header file_hdr;
+extern struct som_exec_auxhdr exec_hdr;
+
+extern int (*core_file_hook)();
+
+#ifdef KERNELDEBUG
+
+extern int kernel_debugging;
+extern int kernel_core_file_hook();
+
+#endif
+
+core_file_command (filename, from_tty)
+ char *filename;
+ int from_tty;
+{
+ int val;
+ extern char registers[];
+#ifdef KERNELDEBUG
+ struct stat stb;
+#endif
+
+ /* Discard all vestiges of any previous core file
+ and mark data and stack spaces as empty. */
+
+ if (corefile)
+ free (corefile);
+ corefile = 0;
+ core_file_hook = 0;
+
+ if (corechan >= 0)
+ close (corechan);
+ corechan = -1;
+
+ data_start = 0;
+ data_end = 0;
+ stack_start = STACK_END_ADDR;
+ stack_end = STACK_END_ADDR;
+
+ /* Now, if a new core file was specified, open it and digest it. */
+
+ if (filename)
+ {
+ filename = tilde_expand (filename);
+ make_cleanup (free, filename);
+
+ if (have_inferior_p ())
+ error ("To look at a core file, you must kill the inferior with \"kill\".");
+ corechan = open (filename, O_RDONLY, 0);
+ if (corechan < 0)
+ perror_with_name (filename);
+
+#ifdef KERNELDEBUG
+ fstat(corechan, &stb);
+
+ if (kernel_debugging) {
+ setup_kernel_debugging();
+ core_file_hook = kernel_core_file_hook;
+ set_kernel_boundaries();
+ } else if ((stb.st_mode & S_IFMT) == S_IFCHR &&
+ stb.st_rdev == makedev(2, 1)) {
+ /* looking at /dev/kmem */
+ data_offset = data_start = KERNBASE;
+ data_end = ~0; /* XXX */
+ stack_end = stack_start = data_end;
+ set_kernel_boundaries();
+ } else
+#endif
+ {
+ /* HP PA-RISC style corefile. */
+#ifndef hpux
+ struct hpuxuser u;
+#else
+ struct user u;
+#endif
+
+ unsigned int reg_offset;
+
+ val = myread (corechan, &u, sizeof u);
+ if (val < 0)
+ perror_with_name ("Not a core file: reading upage");
+ if (val != sizeof u)
+ error ("Not a core file: could only read %d bytes", val);
+
+ /* We are depending on exec_file_command having been called
+ previously to set exec_data_start. Since the executable
+ and the core file share the same text segment, the address
+ of the data segment will be the same in both. */
+ data_start = exec_data_start;
+
+ data_end = data_start + NBPG * u.u_dsize;
+ stack_start = USRSTACK; /* from sys/param.h */
+ stack_end = stack_start + NBPG * u.u_ssize;
+ data_offset = NBPG * UPAGES;
+ stack_offset = NBPG * (UPAGES + u.u_dsize);
+
+ /* Some machines put an absolute address in here and some put
+ the offset in the upage of the regs. */
+ reg_offset = NBPG * USIZE;
+ /* Read the register values out of the core file and store
+ them where `read_register' will find them. */
+
+ {
+ register int regno;
+
+ for (regno = 0; regno < NUM_REGS; regno++)
+ {
+ unsigned char buf[MAX_REGISTER_RAW_SIZE];
+
+ val = lseek (corechan, register_addr (regno, reg_offset), 0);
+ if (val < 0
+ || (val = myread (corechan, buf, sizeof buf)) < 0)
+ {
+ char * buffer = (char *) alloca (strlen (reg_names[regno])
+ + 30);
+ strcpy (buffer, "Reading register ");
+ strcat (buffer, reg_names[regno]);
+
+ perror_with_name (buffer);
+ }
+ if (regno == PCOQ_HEAD_REGNUM || regno == PCOQ_TAIL_REGNUM)
+ buf[3] &= ~0x3;
+ supply_register (regno, buf);
+ }
+ }
+ }
+ if (filename[0] == '/')
+ corefile = savestring (filename, strlen (filename));
+ else
+ {
+ corefile = concat (current_directory, "/", filename);
+ }
+
+ set_current_frame ( create_new_frame (read_register (FP_REGNUM),
+ read_pc ()));
+ select_frame (get_current_frame (), 0);
+ validate_files ();
+ }
+ else if (from_tty)
+ printf ("No core file now.\n");
+}
+
--- /dev/null
+/* Machine-dependent code which would otherwise be in inflow.c and core.c,
+ for GDB, the GNU debugger. This code is for the HP PA-RISC cpu.
+ Copyright (C) 1986, 1987, 1989, 1990, 1991 Free Software Foundation, Inc.
+
+ Contributed by the Center for Software Science at the
+ University of Utah (pa-gdb-bugs@cs.utah.edu).
+
+This file is part of GDB.
+
+GDB is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 1, or (at your option)
+any later version.
+
+GDB is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GDB; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <stdio.h>
+#include "defs.h"
+#include "frame.h"
+#include "inferior.h"
+#include "value.h"
+
+/* For argument passing to the inferior */
+#include "symtab.h"
+
+#ifdef USG
+#include <sys/types.h>
+#endif
+
+#include <sys/param.h>
+#include <sys/dir.h>
+#include <signal.h>
+#include <sys/ioctl.h>
+/* #include <fcntl.h> Can we live without this? */
+
+#ifdef COFF_ENCAPSULATE
+#include "a.out.encap.h"
+#else
+#include <a.out.h>
+#endif
+#ifndef N_SET_MAGIC
+#define N_SET_MAGIC(exec, val) ((exec).a_magic = (val))
+#endif
+
+/*#include <sys/user.h> After a.out.h */
+#include <sys/file.h>
+#include <sys/stat.h>
+#include <sys/ptrace.h>
+#include <machine/psl.h>
+
+#ifdef KERNELDEBUG
+#include <sys/vmmac.h>
+#include <machine/machparam.h>
+#include <machine/vmparam.h>
+#include <machine/pde.h>
+#include <machine/cpu.h>
+#include <machine/iomod.h>
+#include <machine/pcb.h>
+#include <machine/rpb.h>
+#include <ctype.h>
+
+extern int kernel_debugging;
+extern CORE_ADDR startup_file_start;
+extern CORE_ADDR startup_file_end;
+
+#define KERNOFF ((unsigned)KERNBASE)
+#define INKERNEL(x) ((x) >= KERNOFF && (x) < KERNOFF + ctob(slr))
+
+static int ok_to_cache();
+static void set_kernel_boundaries();
+
+int devmem = 0;
+int vtophys_ready = 0;
+int kerneltype;
+#define OS_BSD 1
+#define OS_MACH 2
+#endif
+
+#include "gdbcore.h"
+#include "gdbcmd.h"
+
+extern int errno;
+\f
+
+
+
+
+
+/* Last modification time of executable file.
+ Also used in source.c to compare against mtime of a source file. */
+
+extern int exec_mtime;
+
+/* Virtual addresses of bounds of the two areas of memory in the core file. */
+
+/* extern CORE_ADDR data_start; */
+extern CORE_ADDR data_end;
+extern CORE_ADDR stack_start;
+extern CORE_ADDR stack_end;
+
+/* Virtual addresses of bounds of two areas of memory in the exec file.
+ Note that the data area in the exec file is used only when there is no core file. */
+
+extern CORE_ADDR text_start;
+extern CORE_ADDR text_end;
+
+extern CORE_ADDR exec_data_start;
+extern CORE_ADDR exec_data_end;
+
+/* Address in executable file of start of text area data. */
+
+extern int text_offset;
+
+/* Address in executable file of start of data area data. */
+
+extern int exec_data_offset;
+
+/* Address in core file of start of data area data. */
+
+extern int data_offset;
+
+/* Address in core file of start of stack area data. */
+
+extern int stack_offset;
+
+struct header file_hdr;
+struct som_exec_auxhdr exec_hdr;
+\f
+#ifdef KERNELDEBUG
+/*
+ * Kernel debugging routines.
+ */
+
+static struct pcb pcb;
+static struct pde *pdir;
+static struct hte *htbl;
+static u_int npdir, nhtbl;
+
+static CORE_ADDR
+ksym_lookup(name)
+ char *name;
+{
+ struct symbol *sym;
+ int i;
+
+ if ((i = lookup_misc_func(name)) < 0)
+ error("kernel symbol `%s' not found.", name);
+
+ return (misc_function_vector[i].address);
+}
+
+/*
+ * (re-)set the variables that tell "inside_entry_file" where to end
+ * a stack backtrace.
+ */
+void
+set_kernel_boundaries()
+{
+ switch (kerneltype) {
+ case OS_MACH:
+ startup_file_start = ksym_lookup("$syscall");
+ startup_file_end = ksym_lookup("trap");
+ break;
+ case OS_BSD:
+ startup_file_start = ksym_lookup("syscallinit");
+ startup_file_end = ksym_lookup("$syscallexit");
+ break;
+ }
+}
+
+/*
+ * return true if 'len' bytes starting at 'addr' can be read out as
+ * longwords and/or locally cached (this is mostly for memory mapped
+ * i/o register access when debugging remote kernels).
+ */
+static int
+ok_to_cache(addr, len)
+{
+ static CORE_ADDR ioptr;
+
+ if (! ioptr)
+ ioptr = ksym_lookup("ioptr");
+
+ if (addr >= ioptr && addr < SPA_HIGH)
+ return (0);
+
+ return (1);
+}
+
+static
+physrd(addr, dat, len)
+ u_int addr;
+ char *dat;
+{
+ if (lseek(corechan, addr, L_SET) == -1)
+ return (-1);
+ if (read(corechan, dat, len) != len)
+ return (-1);
+
+ return (0);
+}
+
+/*
+ * When looking at kernel data space through /dev/mem or with a core file, do
+ * virtual memory mapping.
+ */
+static CORE_ADDR
+vtophys(space, addr)
+ unsigned space;
+ CORE_ADDR addr;
+{
+ struct pde *pptr;
+ u_int hindx, vpageno, ppageno;
+ CORE_ADDR phys = ~0;
+
+ if (!vtophys_ready) {
+ phys = addr; /* XXX for kvread */
+ } else if (kerneltype == OS_BSD) {
+ /* make offset into a virtual page no */
+ vpageno = btop(addr);
+ /*
+ * Determine index into hash table, initialize pptr to this
+ * entry (since first word of pte & hte are same), and set
+ * physical page number for first entry in chain.
+ */
+ hindx = pdirhash(space, addr) & (nhtbl-1);
+ pptr = (struct pde *) &htbl[hindx];
+ ppageno = pptr->pde_next;
+ while (1) {
+ if (pptr->pde_end)
+ break;
+ pptr = &pdir[ppageno];
+ /*
+ * If space id & virtual page number match, return
+ * "next PDIR entry of previous PDIR entry" as the
+ * physical page or'd with offset into page.
+ */
+ if (pptr->pde_space == space &&
+ pptr->pde_page == vpageno) {
+ phys = (CORE_ADDR) ((u_int)ptob(ppageno) |
+ (addr & PGOFSET));
+ break;
+ }
+ ppageno = pptr->pde_next;
+ }
+ }
+#ifdef MACHKERNELDEBUG
+ else if (kerneltype == OS_MACH) {
+ (void) mach_vtophys(space, addr, &phys);
+ }
+#endif
+#if 0
+ printf("vtophys(%x.%x) -> %x\n", space, addr, phys);
+#endif
+ return (phys);
+}
+
+static
+kvread(addr)
+ CORE_ADDR addr;
+{
+ CORE_ADDR paddr;
+
+ paddr = vtophys(0, addr);
+ if (paddr != ~0)
+ if (physrd(paddr, (char *)&addr, sizeof(addr)) == 0)
+ return (addr);
+
+ return (~0);
+}
+
+static void
+read_pcb(addr)
+ u_int addr;
+{
+ int i, off;
+ extern char registers[];
+ static int reg2pcb[] = {
+ /* RPB */
+ -1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
+ 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33,
+ 45, 52, 51, 75, 74, 49, 53, 54, 55, 56, -1, 70, 66, 67, 68, 69,
+ 71, 72, 73, 34, 42, 43, 44, 46, 47, 58, 59, 60, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1,
+ /* BSD */
+ -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
+ 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
+ 43, 64, 67, 68, 67, 47, 51, 52, 53, 54, -1, 35, 31, 32, 33, 34,
+ 36, 37, 38, 39, 40, 41, 42, 44, 45, 56, 57, 58,102,103,104, -1,
+ 70, 71, 72, 73, 74, 75, 76, 77, 78, 80, 82, 84, 86, 88, 90, 92,
+ 94, 96, 98, 100,
+ /* Mach */
+ -1, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13,
+ 14, 15, 16, -1, -1, -1, -1, -1, -1, -1, -1, 17, -1, -1, 18, -1,
+ 25, -1, -1, -1, -1, 30, -1, -1, -1, -1, -1, 20, -1, -1, -1, 19,
+ 21, 22, 23, 24, 26, 27, -1, 28, 29, -1, -1, -1, -1, -1, -1, -1,
+ 34, 35, 36, 37, 38, 39, 40, 41, -1, -1, -1, -1, -1, -1, -1, -1,
+ 42, 44, 46, 48
+ };
+ static struct rpb *rpbaddr = (struct rpb *) 0;
+ static u_int rpbpcbaddr = 0;
+
+ if (!remote_debugging) {
+ /*
+ * If we are debugging a post-mortem and this is the first
+ * call of read_pcb, read the RPB. Also assoicate the
+ * thread/proc running at the time with the RPB.
+ */
+ if (!devmem && rpbpcbaddr == 0) {
+ CORE_ADDR raddr = ksym_lookup("rpb");
+ int usepcb = 1;
+
+ if (raddr != ~0) {
+ rpbaddr = (struct rpb *) malloc(sizeof *rpbaddr);
+ if (!physrd(raddr, (char *)rpbaddr, sizeof *rpbaddr)) {
+ rpbpcbaddr = addr;
+ usepcb = 0;
+ }
+ }
+ if (usepcb) {
+ error("cannot read rpb, using pcb for registers\n");
+ if (rpbaddr)
+ free((char *)rpbaddr);
+ rpbpcbaddr = ~0;
+ }
+ }
+ if (physrd (addr, (char *)&pcb, sizeof pcb))
+ error ("cannot read pcb at %x.\n", addr);
+ } else {
+ if (remote_read_inferior_memory(addr, (char *)&pcb, sizeof pcb))
+ error ("cannot read pcb at %x.\n", addr);
+ }
+
+ if (kerneltype == OS_BSD) {
+ printf("p0br %lx p0lr %lx p1br %lx p1lr %lx\n",
+ pcb.pcb_p0br, pcb.pcb_p0lr, pcb.pcb_p1br, pcb.pcb_p1lr);
+ off = NUM_REGS;
+ } else {
+ printf("pcb %lx psw %lx ksp %lx\n",
+ addr, ((int *)&pcb)[31], ((int *)&pcb)[32]);
+ off = NUM_REGS * 2;
+ }
+ /*
+ * get the register values out of the sys pcb and
+ * store them where `read_register' will find them.
+ */
+ bzero(registers, REGISTER_BYTES);
+ for (i = 0; i < NUM_REGS; ++i)
+ if (reg2pcb[i+off] != -1)
+ supply_register(i, &((int *)&pcb)[reg2pcb[i+off]]);
+ /*
+ * If the RPB is valid for this thread/proc use the register values
+ * contained there.
+ */
+ if (addr == rpbpcbaddr) {
+ off = 0;
+ for (i = 0; i < NUM_REGS; ++i)
+ if (reg2pcb[i+off] != -1)
+ supply_register(i, &((int *)rpbaddr)[reg2pcb[i+off]]);
+ }
+}
+
+void
+setup_kernel_debugging()
+{
+ struct stat stb;
+ CORE_ADDR addr;
+
+ fstat(corechan, &stb);
+ devmem = 0;
+ if ((stb.st_mode & S_IFMT) == S_IFCHR && stb.st_rdev == makedev(2, 0))
+ devmem = 1;
+
+ /* XXX */
+ if (lookup_misc_func("Sysmap") < 0)
+ kerneltype = OS_MACH;
+ else
+ kerneltype = OS_BSD;
+
+ if (kerneltype == OS_BSD) {
+ int len, err = 0;
+
+ /*
+ * Hash table and PDIR are equivalently mapped
+ */
+ nhtbl = kvread(ksym_lookup("nhtbl"));
+ if (nhtbl != ~0) {
+ len = nhtbl * sizeof(*htbl);
+ htbl = (struct hte *) malloc(len);
+ if (htbl) {
+ addr = kvread(ksym_lookup("htbl"));
+ if (physrd(addr, (char *)htbl, len))
+ err++;
+ } else
+ err++;
+ } else
+ err++;
+ npdir = kvread(ksym_lookup("npdir"));
+ if (npdir != ~0) {
+ len = npdir * sizeof(*pdir);
+ pdir = (struct pde *) malloc(len);
+ if (pdir) {
+ addr = kvread(ksym_lookup("pdir"));
+ if (physrd(addr, (char *)pdir, len))
+ err++;
+ } else
+ err++;
+ } else
+ err++;
+ if (err) {
+ error("cannot read PDIR/HTBL");
+ return;
+ }
+ vtophys_ready = 1;
+
+ /*
+ * pcb where "panic" saved registers in first thing in
+ * current u-area. The current u-area is pointed to by
+ * "uptr".
+ */
+ addr = kvread(ksym_lookup("uptr"));
+ if (addr == ~0) {
+ error("cannot read current u-area address");
+ return;
+ }
+ read_pcb(vtophys(0, addr)); /* XXX space */
+ if (!devmem) {
+ /* find stack frame */
+ CORE_ADDR panicstr;
+ char buf[256];
+ register char *cp;
+
+ panicstr = kvread(ksym_lookup("panicstr"));
+ if (panicstr == ~0)
+ return;
+ (void) kernel_core_file_hook(panicstr, buf, sizeof(buf));
+ for (cp = buf; cp < &buf[sizeof(buf)] && *cp; cp++)
+ if (!isascii(*cp) || (!isprint(*cp) && !isspace(*cp)))
+ *cp = '?';
+ if (*cp)
+ *cp = '\0';
+ printf("panic: %s\n", buf);
+ }
+ }
+#ifdef MACHKERNELDEBUG
+ else {
+ int *thread;
+
+ /*
+ * Set up address translation
+ */
+ if (mach_vtophys_init() == 0) {
+ error("cannot initialize vtophys for Mach");
+ return;
+ }
+ vtophys_ready = 1;
+
+ /*
+ * Locate active thread and read PCB
+ * XXX MAJOR HACK
+ * - assumes uni-processor
+ * - assumes position of pcb to avoid mach includes
+ */
+ thread = (int *)kvread(ksym_lookup("active_threads"));
+ addr = kvread(&thread[9]); /* XXX: pcb addr */
+ read_pcb(vtophys(0, addr));
+ }
+#endif
+}
+
+vtop_command(arg)
+ char *arg;
+{
+ u_int sp, off, pa;
+
+ if (!arg)
+ error_no_arg("kernel virtual address");
+ if (!kernel_debugging)
+ error("not debugging kernel");
+
+ sp = 0; /* XXX */
+ off = (u_int) parse_and_eval_address(arg);
+ pa = vtophys(sp, off);
+ printf("%lx.%lx -> ", sp, off);
+ if (pa == ~0)
+ printf("<invalid>\n");
+ else
+ printf("%lx\n", pa);
+}
+
+set_paddr_command(arg)
+ char *arg;
+{
+ u_int addr;
+
+ if (!arg) {
+ if (kerneltype == OS_BSD)
+ error_no_arg("ps-style address for new process");
+ else
+ error_no_arg("thread structure virtual address");
+ }
+ if (!kernel_debugging)
+ error("not debugging kernel");
+
+ addr = (u_int) parse_and_eval_address(arg);
+ if (kerneltype == OS_BSD)
+ addr = ctob(addr);
+ else {
+ addr = kvread(&(((int *)addr)[9])); /* XXX: pcb addr */
+ addr = vtophys(0, addr); /* XXX space */
+ }
+ read_pcb(addr);
+
+ flush_cached_frames();
+ set_current_frame(create_new_frame(read_register(FP_REGNUM), read_pc()));
+ select_frame(get_current_frame(), 0);
+}
+
+/*
+ * read len bytes from kernel virtual address 'addr' into local
+ * buffer 'buf'. Return 0 if read ok, 1 otherwise. On read
+ * errors, portion of buffer not read is zeroed.
+ */
+kernel_core_file_hook(addr, buf, len)
+ CORE_ADDR addr;
+ char *buf;
+ int len;
+{
+ int i;
+ CORE_ADDR paddr;
+
+ while (len > 0) {
+ paddr = vtophys(0, addr); /* XXX space */
+ if (paddr == ~0) {
+ bzero(buf, len);
+ return (1);
+ }
+ /* we can't read across a page boundary */
+ i = min(len, NBPG - (addr & PGOFSET));
+ if (physrd(paddr, buf, i)) {
+ bzero(buf, len);
+ return (1);
+ }
+ buf += i;
+ addr += i;
+ len -= i;
+ }
+ return (0);
+}
+#endif
+
+
+\f
+
+
+/* Routines to extract various sized constants out of hppa
+ instructions. */
+
+/* This assumes that no garbage lies outside of the lower bits of
+ value. */
+
+int
+sign_extend (val, bits)
+ unsigned val, bits;
+{
+ return (int)(val >> bits - 1 ? (-1 << bits) | val : val);
+}
+
+/* For many immediate values the sign bit is the low bit! */
+
+int
+low_sign_extend (val, bits)
+ unsigned val, bits;
+{
+ return (int)((val & 0x1 ? (-1 << (bits - 1)) : 0) | val >> 1);
+}
+/* extract the immediate field from a ld{bhw}s instruction */
+
+
+
+unsigned
+get_field (val, from, to)
+ unsigned val, from, to;
+{
+ val = val >> 31 - to;
+ return val & ((1 << 32 - from) - 1);
+}
+
+unsigned
+set_field (val, from, to, new_val)
+ unsigned *val, from, to;
+{
+ unsigned mask = ~((1 << (to - from + 1)) << (31 - from));
+ return *val = *val & mask | (new_val << (31 - from));
+}
+
+/* extract a 3-bit space register number from a be, ble, mtsp or mfsp */
+
+extract_3 (word)
+ unsigned word;
+{
+ return GET_FIELD (word, 18, 18) << 2 | GET_FIELD (word, 16, 17);
+}
+
+extract_5_load (word)
+ unsigned word;
+{
+ return low_sign_extend (word >> 16 & MASK_5, 5);
+}
+
+/* extract the immediate field from a st{bhw}s instruction */
+
+int
+extract_5_store (word)
+ unsigned word;
+{
+ return low_sign_extend (word & MASK_5, 5);
+}
+
+/* extract an 11 bit immediate field */
+
+int
+extract_11 (word)
+ unsigned word;
+{
+ return low_sign_extend (word & MASK_11, 11);
+}
+
+/* extract a 14 bit immediate field */
+
+int
+extract_14 (word)
+ unsigned word;
+{
+ return low_sign_extend (word & MASK_14, 14);
+}
+
+/* deposit a 14 bit constant in a word */
+
+unsigned
+deposit_14 (opnd, word)
+ int opnd;
+ unsigned word;
+{
+ unsigned sign = (opnd < 0 ? 1 : 0);
+
+ return word | ((unsigned)opnd << 1 & MASK_14) | sign;
+}
+
+/* extract a 21 bit constant */
+
+int
+extract_21 (word)
+ unsigned word;
+{
+ int val;
+
+ word &= MASK_21;
+ word <<= 11;
+ val = GET_FIELD (word, 20, 20);
+ val <<= 11;
+ val |= GET_FIELD (word, 9, 19);
+ val <<= 2;
+ val |= GET_FIELD (word, 5, 6);
+ val <<= 5;
+ val |= GET_FIELD (word, 0, 4);
+ val <<= 2;
+ val |= GET_FIELD (word, 7, 8);
+ return sign_extend (val, 21) << 11;
+}
+
+/* deposit a 21 bit constant in a word. Although 21 bit constants are
+ usually the top 21 bits of a 32 bit constant, we assume that only
+ the low 21 bits of opnd are relevant */
+
+unsigned
+deposit_21 (opnd, word)
+ unsigned opnd, word;
+{
+ unsigned val = 0;
+
+ val |= GET_FIELD (opnd, 11 + 14, 11 + 18);
+ val <<= 2;
+ val |= GET_FIELD (opnd, 11 + 12, 11 + 13);
+ val <<= 2;
+ val |= GET_FIELD (opnd, 11 + 19, 11 + 20);
+ val <<= 11;
+ val |= GET_FIELD (opnd, 11 + 1, 11 + 11);
+ val <<= 1;
+ val |= GET_FIELD (opnd, 11 + 0, 11 + 0);
+ return word | val;
+}
+
+/* extract a 12 bit constant from branch instructions */
+
+int
+extract_12 (word)
+ unsigned word;
+{
+ return sign_extend (GET_FIELD (word, 19, 28) |
+ GET_FIELD (word, 29, 29) << 10 |
+ (word & 0x1) << 11, 12) << 2;
+}
+
+/* extract a 17 bit constant from branch instructions, returning the
+ 19 bit signed value. */
+
+int
+extract_17 (word)
+ unsigned word;
+{
+ return sign_extend (GET_FIELD (word, 19, 28) |
+ GET_FIELD (word, 29, 29) << 10 |
+ GET_FIELD (word, 11, 15) << 11 |
+ (word & 0x1) << 16, 17) << 2;
+}
+
+
+CORE_ADDR
+frame_saved_pc (frame)
+ FRAME frame;
+{
+ if (get_current_frame () == frame)
+ {
+ struct frame_saved_regs saved_regs;
+
+ get_frame_saved_regs (frame, &saved_regs);
+ if (saved_regs.regs[RP_REGNUM])
+ return read_memory_integer (saved_regs.regs[RP_REGNUM], 4);
+ else
+ return read_register (RP_REGNUM);
+ }
+ return read_memory_integer (frame->frame - 20, 4) & ~0x3;
+}
+
+/* To see if a frame chain is valid, see if the caller looks like it
+ was compiled with gcc. */
+
+int frame_chain_valid (chain, thisframe)
+ FRAME_ADDR chain;
+ FRAME thisframe;
+{
+ if (chain && (chain > 0x60000000
+ /* || remote_debugging -this is no longer used */
+#ifdef KERNELDEBUG
+ || kernel_debugging
+#endif
+ ))
+ {
+ CORE_ADDR pc = get_pc_function_start (FRAME_SAVED_PC (thisframe));
+
+ if (!inside_entry_file (pc))
+ return 0;
+ /* look for stw rp, -20(0,sp); copy 4,1; copy sp, 4 */
+ if (read_memory_integer (pc, 4) == 0x6BC23FD9)
+ pc = pc + 4;
+
+ if (read_memory_integer (pc, 4) == 0x8040241 &&
+ read_memory_integer (pc + 4, 4) == 0x81E0244)
+ return 1;
+ else
+ return 0;
+ }
+ else
+ return 0;
+}
+
+/* Some helper functions. gcc_p returns 1 if the function beginning at
+ pc appears to have been compiled with gcc. hpux_cc_p returns 1 if
+ fn was compiled with hpux cc. gcc functions look like :
+
+ stw rp,-0x14(sp) ; optional
+ or r4,r0,r1
+ or sp,r0,r4
+ stwm r1,framesize(sp)
+
+ hpux cc functions look like:
+
+ stw rp,-0x14(sp) ; optional.
+ stwm r3,framesiz(sp)
+ */
+
+gcc_p (pc)
+ CORE_ADDR pc;
+{
+ if (read_memory_integer (pc, 4) == 0x6BC23FD9)
+ pc = pc + 4;
+
+ if (read_memory_integer (pc, 4) == 0x8040241 &&
+ read_memory_integer (pc + 4, 4) == 0x81E0244)
+ return 1;
+ return 0;
+}
+
+
+find_dummy_frame_regs (frame, frame_saved_regs)
+ struct frame_info *frame;
+ struct frame_saved_regs *frame_saved_regs;
+{
+ CORE_ADDR fp = frame->frame;
+ int i;
+
+ frame_saved_regs->regs[RP_REGNUM] = fp - 20 & ~0x3;
+ frame_saved_regs->regs[FP_REGNUM] = fp;
+ frame_saved_regs->regs[1] = fp + 8;
+ frame_saved_regs->regs[3] = fp + 12;
+ for (fp += 16, i = 3; i < 30; fp += 4, i++)
+ frame_saved_regs->regs[i] = fp;
+ frame_saved_regs->regs[31] = fp;
+ fp += 4;
+ for (i = FP0_REGNUM; i < NUM_REGS; i++, fp += 8)
+ frame_saved_regs->regs[i] = fp;
+ /* depend on last increment of fp */
+ frame_saved_regs->regs[IPSW_REGNUM] = fp - 4;
+ frame_saved_regs->regs[SAR_REGNUM] = fp;
+ fp += 4;
+ frame_saved_regs->regs[PCOQ_TAIL_REGNUM] = fp;
+ frame_saved_regs->regs[PCSQ_TAIL_REGNUM] = fp;
+}
+
+CORE_ADDR
+hp_push_arguments (nargs, args, sp, struct_return, struct_addr)
+ int nargs;
+ value *args;
+ CORE_ADDR sp;
+ int struct_return;
+ CORE_ADDR struct_addr;
+{
+ /* array of arguments' offsets */
+ int *offset = (int *)alloca(nargs);
+ int cum = 0;
+ int i, alignment;
+
+ for (i = 0; i < nargs; i++)
+ {
+ cum += TYPE_LENGTH (VALUE_TYPE (args[i]));
+ /* value must go at proper alignment. Assume alignment is a
+ power of two.*/
+ alignment = hp_alignof (VALUE_TYPE (args[i]));
+ if (cum % alignment)
+ cum = (cum + alignment) & -alignment;
+ offset[i] = -cum;
+ }
+ for (i == 0; i < nargs; i++)
+ {
+ write_memory (sp + offset[i], VALUE_CONTENTS (args[i]), sizeof(int));
+ }
+ sp += min ((cum + 7) & -8, 48);
+ if (struct_return)
+ write_register (28, struct_addr);
+ return sp + 48;
+}
+
+/* return the alignment of a type in bytes. Structures have the maximum
+ alignment required by their fields. */
+
+int
+hp_alignof (arg)
+ struct type *arg;
+{
+ int max_align, align, i;
+ switch (TYPE_CODE (arg))
+ {
+ case TYPE_CODE_PTR:
+ case TYPE_CODE_INT:
+ case TYPE_CODE_FLT:
+ return TYPE_LENGTH (arg);
+ case TYPE_CODE_ARRAY:
+ return hp_alignof (TYPE_FIELD_TYPE (arg, 0));
+ case TYPE_CODE_STRUCT:
+ case TYPE_CODE_UNION:
+ max_align = 2;
+ for (i = 0; i < TYPE_NFIELDS (arg); i++)
+ {
+ /* Bit fields have no real alignment. */
+ if (!TYPE_FIELD_BITPOS (arg, i))
+ {
+ align = hp_alignof (TYPE_FIELD_TYPE (arg, i));
+ max_align = max (max_align, align);
+ }
+ }
+ return max_align;
+ default:
+ return 4;
+ }
+}
+
+/* Print the register regnum, or all registers if regnum is -1 */
+
+pa_do_registers_info (regnum, fpregs)
+ int regnum;
+ int fpregs;
+{
+ char raw_regs [REGISTER_BYTES];
+ int i;
+
+ for (i = 0; i < NUM_REGS; i++)
+ read_relative_register_raw_bytes (i, raw_regs + REGISTER_BYTE (i));
+ if (regnum = -1)
+ pa_print_registers (raw_regs, regnum);
+ else if (regnum < FP0_REGNUM)
+ {
+ printf ("%s %x\n", reg_names[regnum], *(long *)(raw_regs +
+ REGISTER_BYTE (regnum)));
+ }
+ else
+ pa_print_fp_reg (regnum);
+}
+
+pa_print_registers (raw_regs, regnum)
+ char *raw_regs;
+ int regnum;
+{
+ int i;
+
+ for (i = 0; i < 18; i++)
+ printf ("%8.8s: %8x %8.8s: %8x %8.8s: %8x %8.8s: %8x\n",
+ reg_names[i],
+ *(int *)(raw_regs + REGISTER_BYTE (i)),
+ reg_names[i + 18],
+ *(int *)(raw_regs + REGISTER_BYTE (i + 18)),
+ reg_names[i + 36],
+ *(int *)(raw_regs + REGISTER_BYTE (i + 36)),
+ reg_names[i + 54],
+ *(int *)(raw_regs + REGISTER_BYTE (i + 54)));
+ for (i = 72; i < NUM_REGS; i++)
+ pa_print_fp_reg (i);
+}
+
+pa_print_fp_reg (i)
+ int i;
+{
+ unsigned char raw_buffer[MAX_REGISTER_RAW_SIZE];
+ unsigned char virtual_buffer[MAX_REGISTER_VIRTUAL_SIZE];
+ REGISTER_TYPE val;
+
+ /* Get the data in raw format, then convert also to virtual format. */
+ read_relative_register_raw_bytes (i, raw_buffer);
+ REGISTER_CONVERT_TO_VIRTUAL (i, raw_buffer, virtual_buffer);
+
+ fputs_filtered (reg_names[i], stdout);
+ print_spaces_filtered (15 - strlen (reg_names[i]), stdout);
+
+ val_print (REGISTER_VIRTUAL_TYPE (i), virtual_buffer, 0, stdout, 0,
+ 1, 0, Val_pretty_default);
+ printf_filtered ("\n");
+
+}
+
+/*
+ * Virtual to physical translation routines for Utah's Mach 3.0
+ */
+#ifdef MACHKERNELDEBUG
+
+#define STATIC
+
+#if 0 /* too many includes to resolve, too much crap */
+#include <kern/queue.h>
+#include <vm/pmap.h>
+#include <mach/vm_prot.h>
+#else
+/* queue.h */
+struct queue_entry {
+ struct queue_entry *next; /* next element */
+ struct queue_entry *prev; /* previous element */
+};
+
+typedef struct queue_entry *queue_t;
+typedef struct queue_entry queue_head_t;
+typedef struct queue_entry queue_chain_t;
+typedef struct queue_entry *queue_entry_t;
+
+/* pmap.h */
+#define HP800_HASHSIZE 1024
+#define HP800_HASHSIZE_LOG2 10
+
+#define pmap_hash(space, offset) \
+ (((unsigned) (space) << 5 ^ \
+ ((unsigned) (offset) >> 19 | (unsigned) (space) << 13) ^ \
+ (unsigned) (offset) >> 11) & (HP800_HASHSIZE-1))
+
+struct mapping {
+ queue_head_t hash_link; /* hash table links */
+ queue_head_t phys_link; /* for mappings of a given PA */
+ space_t space; /* virtual space */
+ unsigned offset; /* virtual page number */
+ unsigned tlbpage; /* physical page (for TLB load) */
+ unsigned tlbprot; /* prot/access rights (for TLB load) */
+ struct pmap *pmap; /* pmap mapping belongs to */
+};
+
+struct phys_entry {
+ queue_head_t phys_link; /* head of mappings of a given PA */
+ struct mapping *writer; /* mapping with R/W access */
+ unsigned tlbprot; /* TLB format protection */
+};
+
+#endif
+
+#define atop(a) ((unsigned)(a) >> 11)
+#define ptoa(p) ((unsigned)(p) << 11)
+#define trunc_page(a) ((unsigned)(a) & ~2047)
+
+STATIC long equiv_end;
+STATIC queue_head_t *Ovtop_table, *vtop_table, *Ofree_mapping, free_mapping;
+STATIC struct phys_entry *Ophys_table, *phys_table;
+STATIC long vm_last_phys, vm_first_phys;
+STATIC struct mapping *firstmap, *lastmap, *Omap_table, *map_table;
+STATIC unsigned Omlow, Omhigh, Omhead, Ovlow, Ovhigh, Oplow, Ophigh;
+STATIC unsigned mlow, mhigh, mhead, vlow, vhigh, plow, phigh;
+STATIC int vtopsize, physsize, mapsize;
+STATIC int kmemfd;
+
+#define IS_OVTOPPTR(p) ((unsigned)(p) >= Ovlow && (unsigned)(p) < Ovhigh)
+#define IS_OMAPPTR(p) ((unsigned)(p) >= Omlow && (unsigned)(p) < Omhigh)
+#define IS_OPHYSPTR(p) ((unsigned)(p) >= Oplow && (unsigned)(p) < Ophigh)
+#define IS_VTOPPTR(p) ((unsigned)(p) >= vlow && (unsigned)(p) < vhigh)
+#define IS_MAPPTR(p) ((unsigned)(p) >= mlow && (unsigned)(p) < mhigh)
+#define IS_PHYSPTR(p) ((unsigned)(p) >= plow && (unsigned)(p) < phigh)
+
+struct mapstate {
+ char unused;
+ char flags;
+ short hashix;
+ short physix;
+} *mapstate;
+
+/* flags */
+#define M_ISFREE 1
+#define M_ISHASH 2
+#define M_ISPHYS 4
+
+mach_vtophys_init()
+{
+ int errors = 0;
+
+ if (!readdata())
+ errors++;
+ if (!verifydata())
+ errors++;
+ if (!errors)
+ return(1);
+ fflush(stdout);
+ fprintf(stderr,
+ "translate: may not be able to translate all addresses\n");
+ return(0);
+}
+
+mach_vtophys(space, off, pa)
+ unsigned space, off, *pa;
+{
+ register int i;
+ register queue_t qp;
+ register struct mapping *mp;
+ int poff;
+
+ /*
+ * Kernel IO or equivilently mapped, one to one.
+ */
+ if (space == 0 && (long)off < equiv_end) {
+ *pa = off;
+ return(1);
+ }
+ /*
+ * Else look it up in specified space
+ */
+ poff = off - trunc_page(off);
+ off = trunc_page(off);
+ qp = &vtop_table[pmap_hash(space, off)];
+ for (mp = (struct mapping *)qp->next;
+ qp != (queue_entry_t)mp;
+ mp = (struct mapping *)mp->hash_link.next) {
+ if (mp->space == space && mp->offset == off) {
+ *pa = (mp->tlbpage << 7) | poff;
+ return(1);
+ }
+ }
+ return(0);
+}
+
+STATIC
+readdata()
+{
+ char *tmp, *mach_malloc();
+ long size;
+
+ /* easy scalars */
+ mach_read("equiv_end", ~0, (char *)&equiv_end, sizeof equiv_end);
+ mach_read("vm_first_phys", ~0,
+ (char *)&vm_first_phys, sizeof vm_first_phys);
+ mach_read("vm_last_phys", ~0,
+ (char *)&vm_last_phys, sizeof vm_last_phys);
+ mach_read("firstmap", ~0, (char *)&firstmap, sizeof firstmap);
+ mach_read("lastmap", ~0, (char *)&lastmap, sizeof lastmap);
+
+ /* virtual to physical hash table */
+ vtopsize = HP800_HASHSIZE;
+ size = vtopsize * sizeof(queue_head_t);
+ tmp = mach_malloc("vtop table", size);
+ mach_read("vtop_table", ~0, (char *)&Ovtop_table, sizeof Ovtop_table);
+ mach_read("vtop table", (CORE_ADDR)Ovtop_table, tmp, size);
+ vtop_table = (queue_head_t *) tmp;
+
+ /* inverted page table */
+ physsize = atop(vm_last_phys - vm_first_phys);
+ size = physsize * sizeof(struct phys_entry);
+ tmp = mach_malloc("phys table", size);
+ mach_read("phys_table", ~0, (char *)&Ophys_table, sizeof Ophys_table);
+ mach_read("phys table", (CORE_ADDR)Ophys_table, tmp, size);
+ phys_table = (struct phys_entry *) tmp;
+
+ /* mapping structures */
+ Ofree_mapping = (queue_head_t *) ksym_lookup("free_mapping");
+ mach_read("free mapping", (CORE_ADDR)Ofree_mapping,
+ (char *) &free_mapping, sizeof free_mapping);
+ Omap_table = firstmap;
+ mapsize = lastmap - firstmap;
+ size = mapsize * sizeof(struct mapping);
+ tmp = mach_malloc("mapping table", size);
+ mach_read("mapping table", (CORE_ADDR)Omap_table, tmp, size);
+ map_table = (struct mapping *) tmp;
+
+ /* set limits */
+ Ovlow = (unsigned) Ovtop_table;
+ Ovhigh = (unsigned) &Ovtop_table[vtopsize];
+ Oplow = (unsigned) Ophys_table;
+ Ophigh = (unsigned) &Ophys_table[physsize];
+ Omhead = (unsigned) Ofree_mapping;
+ Omlow = (unsigned) firstmap;
+ Omhigh = (unsigned) lastmap;
+ mlow = (unsigned) map_table;
+ mhigh = (unsigned) &map_table[mapsize];
+ mhead = (unsigned) &free_mapping;
+ vlow = (unsigned) vtop_table;
+ vhigh = (unsigned) &vtop_table[vtopsize];
+ plow = (unsigned) phys_table;
+ phigh = (unsigned) &phys_table[physsize];
+
+#if 0
+ fprintf(stderr, "Ovtop [%#x-%#x) Ophys [%#x-%#x) Omap %#x [%#x-%#x)\n",
+ Ovlow, Ovhigh, Oplow, Ophigh, Omhead, Omlow, Omhigh);
+ fprintf(stderr, "vtop [%#x-%#x) phys [%#x-%#x) map %#x [%#x-%#x)\n",
+ vlow, vhigh, plow, phigh, mhead, mlow, mhigh);
+#endif
+ return(adjustdata());
+}
+
+STATIC unsigned
+ptrcvt(ptr)
+ unsigned ptr;
+{
+ unsigned ret;
+ char *str;
+
+ if (ptr == 0) {
+ ret = ptr;
+ str = "null";
+ } else if (IS_OVTOPPTR(ptr)) {
+ ret = vlow + (ptr - Ovlow);
+ str = "vtop";
+ } else if (IS_OPHYSPTR(ptr)) {
+ ret = plow + (ptr - Oplow);
+ str = "phys";
+ } else if (IS_OMAPPTR(ptr)) {
+ ret = mlow + (ptr - Omlow);
+ str = "map";
+ } else if (ptr == Omhead) {
+ ret = mhead;
+ str = "maphead";
+ } else {
+ error("bogus pointer %#x", ptr);
+ str = "wild";
+ ret = ptr;
+ }
+#if 0
+ fprintf(stderr, "%x (%s) -> %x\n", ptr, str, ret);
+#endif
+ return(ret);
+}
+
+STATIC int
+adjustdata()
+{
+ register int i, lim;
+ queue_head_t *nq;
+ struct phys_entry *np;
+ struct mapping *nm;
+
+ /* hash table */
+ lim = vtopsize;
+ for (nq = vtop_table; nq < &vtop_table[lim]; nq++) {
+ nq->next = (queue_entry_t) ptrcvt((unsigned)nq->next);
+ nq->prev = (queue_entry_t) ptrcvt((unsigned)nq->prev);
+ }
+
+ /* IPT */
+ lim = physsize;
+ for (np = phys_table; np < &phys_table[lim]; np++) {
+ np->phys_link.next = (queue_entry_t)
+ ptrcvt((unsigned)np->phys_link.next);
+ np->phys_link.prev = (queue_entry_t)
+ ptrcvt((unsigned)np->phys_link.prev);
+ np->writer = (struct mapping *) ptrcvt((unsigned)np->writer);
+ }
+
+ /* mapping table */
+ free_mapping.next = (queue_entry_t)ptrcvt((unsigned)free_mapping.next);
+ free_mapping.prev = (queue_entry_t)ptrcvt((unsigned)free_mapping.prev);
+ lim = mapsize;
+ for (nm = map_table; nm < &map_table[lim]; nm++) {
+ nm->hash_link.next = (queue_entry_t)
+ ptrcvt((unsigned)nm->hash_link.next);
+ nm->hash_link.prev = (queue_entry_t)
+ ptrcvt((unsigned)nm->hash_link.prev);
+ nm->phys_link.next = (queue_entry_t)
+ ptrcvt((unsigned)nm->phys_link.next);
+ nm->phys_link.prev = (queue_entry_t)
+ ptrcvt((unsigned)nm->phys_link.prev);
+ }
+ return(1);
+}
+
+/*
+ * Consistency checks, make sure:
+ *
+ * 1. all mappings are accounted for
+ * 2. no cycles
+ * 3. no wild pointers
+ * 4. consisent TLB state
+ */
+STATIC int
+verifydata()
+{
+ register struct mapstate *ms;
+ register int i;
+ int errors = 0;
+
+ mapstate = (struct mapstate *)
+ mach_malloc("map state", mapsize * sizeof(struct mapstate));
+ for (ms = mapstate; ms < &mapstate[mapsize]; ms++) {
+ ms->flags = 0;
+ ms->hashix = ms->physix = -2;
+ }
+
+ /*
+ * Check the free list
+ */
+ checkhashchain(&free_mapping, M_ISFREE, -1);
+ /*
+ * Check every hash chain
+ */
+ for (i = 0; i < vtopsize; i++)
+ checkhashchain(&vtop_table[i], M_ISHASH, i);
+ /*
+ * Check every phys chain
+ */
+ for (i = 0; i < physsize; i++)
+ checkphyschain(&phys_table[i].phys_link, M_ISPHYS, i);
+ /*
+ * Cycle through mapstate looking for anomolies
+ */
+ ms = mapstate;
+ for (i = 0; i < mapsize; i++) {
+ switch (ms->flags) {
+ case M_ISFREE:
+ case M_ISHASH|M_ISPHYS:
+ break;
+ case 0:
+ merror(ms, "not found");
+ errors++;
+ break;
+ case M_ISHASH:
+ merror(ms, "in vtop but not phys");
+ errors++;
+ break;
+ case M_ISPHYS:
+ merror(ms, "in phys but not vtop");
+ errors++;
+ break;
+ default:
+ merror(ms, "totally bogus");
+ errors++;
+ break;
+ }
+ ms++;
+ }
+ return(errors ? 0 : 1);
+}
+
+STATIC void
+checkhashchain(qhp, flag, ix)
+ queue_entry_t qhp;
+{
+ register queue_entry_t qp, pqp;
+ register struct mapping *mp;
+ struct mapstate *ms;
+
+ qp = qhp->next;
+ /*
+ * First element is not a mapping structure,
+ * chain must be empty.
+ */
+ if (!IS_MAPPTR(qp)) {
+ if (qp != qhp || qp != qhp->prev)
+ fatal("bad vtop_table header pointer");
+ } else {
+ pqp = qhp;
+ do {
+ mp = (struct mapping *) qp;
+ qp = &mp->hash_link;
+ if (qp->prev != pqp)
+ fatal("bad hash_link prev pointer");
+ ms = &mapstate[mp-map_table];
+ ms->flags |= flag;
+ ms->hashix = ix;
+ pqp = (queue_entry_t) mp;
+ qp = qp->next;
+ } while (IS_MAPPTR(qp));
+ if (qp != qhp)
+ fatal("bad hash_link next pointer");
+ }
+}
+
+STATIC void
+checkphyschain(qhp, flag, ix)
+ queue_entry_t qhp;
+{
+ register queue_entry_t qp, pqp;
+ register struct mapping *mp;
+ struct mapstate *ms;
+
+ qp = qhp->next;
+ /*
+ * First element is not a mapping structure,
+ * chain must be empty.
+ */
+ if (!IS_MAPPTR(qp)) {
+ if (qp != qhp || qp != qhp->prev)
+ fatal("bad phys_table header pointer");
+ } else {
+ pqp = qhp;
+ do {
+ mp = (struct mapping *) qp;
+ qp = &mp->phys_link;
+ if (qp->prev != pqp)
+ fatal("bad phys_link prev pointer");
+ ms = &mapstate[mp-map_table];
+ ms->flags |= flag;
+ ms->physix = ix;
+ pqp = (queue_entry_t) mp;
+ qp = qp->next;
+ } while (IS_MAPPTR(qp));
+ if (qp != qhp)
+ fatal("bad phys_link next pointer");
+ }
+}
+
+STATIC void
+merror(ms, str)
+ struct mapstate *ms;
+ char *str;
+{
+ terminal_ours();
+ fflush(stdout);
+ fprintf(stderr,
+ "vtophys: %s: %c%c%c, hashix %d, physix %d, mapping %x\n",
+ str,
+ (ms->flags & M_ISFREE) ? 'F' : '-',
+ (ms->flags & M_ISHASH) ? 'H' : '-',
+ (ms->flags & M_ISPHYS) ? 'P' : '-',
+ ms->hashix, ms->physix, &map_table[ms-mapstate]);
+ return_to_top_level();
+}
+
+STATIC int
+mach_read(str, from, top, size)
+ char *str;
+ CORE_ADDR from;
+ char *top;
+ int size;
+{
+ CORE_ADDR paddr;
+
+ if (from == ~0)
+ from = ksym_lookup(str);
+ paddr = vtophys(0, from);
+ if (paddr == ~0 || physrd(paddr, top, size) != 0)
+ fatal("cannot read %s", str);
+}
+
+STATIC char *
+mach_malloc(str, size)
+ char *str;
+ int size;
+{
+ char *ptr = (char *) malloc(size);
+
+ if (ptr == 0)
+ fatal("no memory for %s", str);
+ return(ptr);
+}
+#endif
+
+#ifdef KERNELDEBUG
+void
+_initialize_hp9k8_dep()
+{
+ add_com ("process-address", class_obscure, set_paddr_command,
+"The process identified by (ps-style) ADDR becomes the\n\
+\"current\" process context for kernel debugging.");
+ add_com_alias ("paddr", "process-address", class_obscure, 0);
+ add_com ("virtual-to-physical", class_obscure, vtop_command,
+"Translates the kernel virtual address ADDR into a physical address.");
+ add_com_alias ("vtop", "virtual-to-physical", class_obscure, 0);
+}
+#endif
+
+
+
+
--- /dev/null
+/* Machine-dependent code which would otherwise be in infptrace.c,
+ for GDB, the GNU debugger. This code is for the HP PA-RISC cpu.
+ Copyright (C) 1986, 1987, 1989, 1990, 1991 Free Software Foundation, Inc.
+
+ Contributed by the Center for Software Science at the
+ University of Utah (pa-gdb-bugs@cs.utah.edu).
+
+/* Low level Unix child interface to ptrace, for GDB when running under Unix.
+ Copyright (C) 1988, 1989, 1990, 1991 Free Software Foundation, Inc.
+
+This file is part of GDB.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <stdio.h>
+#include "defs.h"
+#include "frame.h"
+#include "inferior.h"
+#include "target.h"
+
+#ifdef USG
+#include <sys/types.h>
+#endif
+
+#include <sys/param.h>
+#include <sys/dir.h>
+#include <signal.h>
+#include <sys/ioctl.h>
+#ifndef USG
+#include <sys/ptrace.h>
+#endif
+
+
+#ifndef PT_ATTACH
+#define PT_ATTACH PTRACE_ATTACH
+#endif
+#ifndef PT_DETACH
+#define PT_DETACH PTRACE_DETACH
+#endif
+
+#include "gdbcore.h"
+#include <sys/user.h> /* After a.out.h */
+#include <sys/file.h>
+#include <sys/stat.h>
+\f
+/* This function simply calls ptrace with the given arguments.
+ It exists so that all calls to ptrace are isolated in this
+ machine-dependent file. */
+int
+call_ptrace (request, pid, addr, data)
+ int request, pid, *addr, data;
+{
+ return ptrace (request, pid, addr, data);
+}
+
+#ifdef DEBUG_PTRACE
+/* For the rest of the file, use an extra level of indirection */
+/* This lets us breakpoint usefully on call_ptrace. */
+#define ptrace call_ptrace
+#endif
+
+/* This is used when GDB is exiting. It gives less chance of error.*/
+
+void
+kill_inferior_fast ()
+{
+ if (inferior_pid == 0)
+ return;
+ ptrace (PT_KILL, inferior_pid, 0, 0);
+ wait ((int *)0);
+}
+
+void
+kill_inferior ()
+{
+ kill_inferior_fast ();
+ target_mourn_inferior ();
+}
+
+/* Resume execution of the inferior process.
+ If STEP is nonzero, single-step it.
+ If SIGNAL is nonzero, give it that signal. */
+
+void
+child_resume (step, signal)
+ int step;
+ int signal;
+{
+ errno = 0;
+
+ /* An address of (int *)1 tells ptrace to continue from where it was.
+ (If GDB wanted it to start some other way, we have already written
+ a new PC value to the child.) */
+
+ if (step)
+ ptrace (PT_STEP, inferior_pid, (int *)1, signal);
+ else
+ ptrace (PT_CONTINUE, inferior_pid, (int *)1, signal);
+
+ if (errno)
+ perror_with_name ("ptrace");
+}
+\f
+#ifdef ATTACH_DETACH
+/* Nonzero if we are debugging an attached process rather than
+ an inferior. */
+extern int attach_flag;
+
+/* Start debugging the process whose number is PID. */
+int
+attach (pid)
+ int pid;
+{
+ errno = 0;
+ ptrace (PT_ATTACH, pid, 0, 0);
+ if (errno)
+ perror_with_name ("ptrace");
+ attach_flag = 1;
+ return pid;
+}
+
+/* Stop debugging the process whose number is PID
+ and continue it with signal number SIGNAL.
+ SIGNAL = 0 means just continue it. */
+
+void
+detach (signal)
+ int signal;
+{
+ errno = 0;
+ ptrace (PT_DETACH, inferior_pid, 1, signal);
+ if (errno)
+ perror_with_name ("ptrace");
+ attach_flag = 0;
+}
+#endif /* ATTACH_DETACH */
+\f
+#if !defined (FETCH_INFERIOR_REGISTERS)
+
+/* KERNEL_U_ADDR is the amount to subtract from u.u_ar0
+ to get the offset in the core file of the register values. */
+#if defined (KERNEL_U_ADDR_BSD)
+/* Get kernel_u_addr using BSD-style nlist(). */
+CORE_ADDR kernel_u_addr;
+
+#include <a.out.gnu.h> /* For struct nlist */
+
+void
+_initialize_kernel_u_addr ()
+{
+ struct nlist names[2];
+
+ names[0].n_un.n_name = "_u";
+ names[1].n_un.n_name = NULL;
+ if (nlist ("/vmunix", names) == 0)
+ kernel_u_addr = names[0].n_value;
+ else
+ fatal ("Unable to get kernel u area address.");
+}
+#endif /* KERNEL_U_ADDR_BSD. */
+
+#if defined (KERNEL_U_ADDR_HPUX)
+/* Get kernel_u_addr using HPUX-style nlist(). */
+CORE_ADDR kernel_u_addr;
+
+struct hpnlist {
+ char * n_name;
+ long n_value;
+ unsigned char n_type;
+ unsigned char n_length;
+ short n_almod;
+ short n_unused;
+};
+static struct hpnlist nl[] = {{ "_u", -1, }, { (char *) 0, }};
+
+/* read the value of the u area from the hp-ux kernel */
+void _initialize_kernel_u_addr ()
+{
+ struct user u;
+ nlist ("/hp-ux", &nl);
+ kernel_u_addr = nl[0].n_value;
+}
+#endif /* KERNEL_U_ADDR_HPUX. */
+
+#if !defined (offsetof)
+#define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
+#endif
+
+/* U_REGS_OFFSET is the offset of the registers within the u area. */
+#if !defined (U_REGS_OFFSET)
+#define U_REGS_OFFSET \
+ ptrace (PT_READ_U, inferior_pid, \
+ (int *)(offsetof (struct user, u_ar0)), 0) - KERNEL_U_ADDR
+#endif
+
+/* Registers we shouldn't try to fetch. */
+#if !defined (CANNOT_FETCH_REGISTER)
+#define CANNOT_FETCH_REGISTER(regno) 0
+#endif
+
+/* Fetch one register. */
+
+static void
+fetch_register (regno)
+ int regno;
+{
+ register unsigned int regaddr;
+ char buf[MAX_REGISTER_RAW_SIZE];
+ char mess[128]; /* For messages */
+ register int i;
+
+ /* Offset of registers within the u area. */
+ unsigned int offset;
+
+ if (CANNOT_FETCH_REGISTER (regno))
+ {
+ bzero (buf, REGISTER_RAW_SIZE (regno)); /* Supply zeroes */
+ supply_register (regno, buf);
+ return;
+ }
+
+ offset = U_REGS_OFFSET;
+
+ regaddr = register_addr (regno, offset);
+ for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
+ {
+ errno = 0;
+ *(int *) &buf[i] = ptrace (PT_RUREGS, inferior_pid, (int *)regaddr, 0);
+ regaddr += sizeof (int);
+ if (errno != 0)
+ {
+ sprintf (mess, "reading register %s (#%d)", reg_names[regno], regno);
+ perror_with_name (mess);
+ }
+ }
+ if (regno == PCOQ_HEAD_REGNUM || regno == PCOQ_TAIL_REGNUM)
+ buf[3] &= ~0x3;
+ supply_register (regno, buf);
+}
+
+
+/* Fetch all registers, or just one, from the child process. */
+
+void
+fetch_inferior_registers (regno)
+ int regno;
+{
+ if (regno == -1)
+ for (regno = 0; regno < NUM_REGS; regno++)
+ fetch_register (regno);
+ else
+ fetch_register (regno);
+}
+
+/* Registers we shouldn't try to store. */
+#if !defined (CANNOT_STORE_REGISTER)
+#define CANNOT_STORE_REGISTER(regno) 0
+#endif
+
+/* Store our register values back into the inferior.
+ If REGNO is -1, do this for all registers.
+ Otherwise, REGNO specifies which register (so we can save time). */
+
+void
+store_inferior_registers (regno)
+ int regno;
+{
+ register unsigned int regaddr;
+ char buf[80];
+ extern char registers[];
+ register int i;
+
+ unsigned int offset = U_REGS_OFFSET;
+
+ if (regno >= 0)
+ {
+ regaddr = register_addr (regno, offset);
+ for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof(int))
+ {
+ errno = 0;
+ ptrace (PT_WRITE_U, inferior_pid, (int *)regaddr,
+ *(int *) ®isters[REGISTER_BYTE (regno) + i]);
+ if (errno != 0)
+ {
+ sprintf (buf, "writing register number %d(%d)", regno, i);
+ perror_with_name (buf);
+ }
+ regaddr += sizeof(int);
+ }
+ }
+ else
+ {
+ for (regno = 0; regno < NUM_REGS; regno++)
+ {
+ if (CANNOT_STORE_REGISTER (regno))
+ continue;
+ regaddr = register_addr (regno, offset);
+ for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof(int))
+ {
+ errno = 0;
+ ptrace (PT_WRITE_U, inferior_pid, (int *)regaddr,
+ *(int *) ®isters[REGISTER_BYTE (regno) + i]);
+ if (errno != 0)
+ {
+ sprintf (buf, "writing register number %d(%d)", regno, i);
+ perror_with_name (buf);
+ }
+ regaddr += sizeof(int);
+ }
+ }
+ }
+ return;
+}
+#endif /* !defined (FETCH_INFERIOR_REGISTERS). */
+\f
+/* NOTE! I tried using PTRACE_READDATA, etc., to read and write memory
+ in the NEW_SUN_PTRACE case.
+ It ought to be straightforward. But it appears that writing did
+ not write the data that I specified. I cannot understand where
+ it got the data that it actually did write. */
+
+/* Copy LEN bytes to or from inferior's memory starting at MEMADDR
+ to debugger memory starting at MYADDR. Copy to inferior if
+ WRITE is nonzero.
+
+ Returns the length copied, which is either the LEN argument or zero.
+ This xfer function does not do partial moves, since child_ops
+ doesn't allow memory operations to cross below us in the target stack
+ anyway. */
+
+int
+child_xfer_memory (memaddr, myaddr, len, write, target)
+ CORE_ADDR memaddr;
+ char *myaddr;
+ int len;
+ int write;
+ struct target_ops *target; /* ignored */
+{
+ register int i;
+ /* Round starting address down to longword boundary. */
+ register CORE_ADDR addr = memaddr & - sizeof (int);
+ /* Round ending address up; get number of longwords that makes. */
+ register int count
+ = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int);
+ /* Allocate buffer of that many longwords. */
+ register int *buffer = (int *) alloca (count * sizeof (int));
+
+ if (write)
+ {
+ /* Fill start and end extra bytes of buffer with existing memory data. */
+
+ if (addr != memaddr || len < (int)sizeof (int)) {
+ /* Need part of initial word -- fetch it. */
+ buffer[0] = ptrace (PT_READ_I, inferior_pid, (int *)addr, 0);
+ }
+
+ if (count > 1) /* FIXME, avoid if even boundary */
+ {
+ buffer[count - 1]
+ = ptrace (PT_READ_I, inferior_pid,
+ (int *)(addr + (count - 1) * sizeof (int)), 0);
+ }
+
+ /* Copy data to be written over corresponding part of buffer */
+
+ bcopy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len);
+
+ /* Write the entire buffer. */
+
+ for (i = 0; i < count; i++, addr += sizeof (int))
+ {
+ errno = 0;
+ ptrace (PT_WRITE_D, inferior_pid, (int *)addr, buffer[i]);
+ if (errno)
+ {
+ /* Using the appropriate one (I or D) is necessary for
+ Gould NP1, at least. */
+ errno = 0;
+ ptrace (PT_WRITE_I, inferior_pid, (int *)addr, buffer[i]);
+ }
+ if (errno)
+ return 0;
+ }
+ }
+ else
+ {
+ /* Read all the longwords */
+ for (i = 0; i < count; i++, addr += sizeof (int))
+ {
+ errno = 0;
+ buffer[i] = ptrace (PT_READ_I, inferior_pid, (int *)addr, 0);
+ if (errno)
+ return 0;
+ QUIT;
+ }
+
+ /* Copy appropriate bytes out of the buffer. */
+ bcopy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len);
+ }
+ return len;
+}
+
+
+
+
--- /dev/null
+/* Machine-dependent code which would otherwise be in inflow.c and core.c,
+ for GDB, the GNU debugger. This code is for the HP PA-RISC cpu.
+ Copyright (C) 1986, 1987, 1989, 1990, 1991 Free Software Foundation, Inc.
+
+ Contributed by the Center for Software Science at the
+ University of Utah (pa-gdb-bugs@cs.utah.edu).
+
+This file is part of GDB.
+
+GDB is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 1, or (at your option)
+any later version.
+
+GDB is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GDB; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <stdio.h>
+#include "defs.h"
+#include "frame.h"
+#include "inferior.h"
+#include "value.h"
+
+/* For argument passing to the inferior */
+#include "symtab.h"
+
+#ifdef USG
+#include <sys/types.h>
+#endif
+
+#include <sys/param.h>
+#include <sys/dir.h>
+#include <signal.h>
+#include <sys/ioctl.h>
+/* #include <fcntl.h> Can we live without this? */
+
+#ifdef COFF_ENCAPSULATE
+#include "a.out.encap.h"
+#else
+#include <a.out.h>
+#endif
+#ifndef N_SET_MAGIC
+#define N_SET_MAGIC(exec, val) ((exec).a_magic = (val))
+#endif
+
+/*#include <sys/user.h> After a.out.h */
+#include <sys/file.h>
+#include <sys/stat.h>
+#include <sys/ptrace.h>
+#include <machine/psl.h>
+
+#ifdef KERNELDEBUG
+#include <sys/vmmac.h>
+#include <machine/machparam.h>
+#include <machine/vmparam.h>
+#include <machine/pde.h>
+#include <machine/cpu.h>
+#include <machine/iomod.h>
+#include <machine/pcb.h>
+#include <machine/rpb.h>
+#include <ctype.h>
+
+extern int kernel_debugging;
+extern CORE_ADDR startup_file_start;
+extern CORE_ADDR startup_file_end;
+
+#define KERNOFF ((unsigned)KERNBASE)
+#define INKERNEL(x) ((x) >= KERNOFF && (x) < KERNOFF + ctob(slr))
+
+static int ok_to_cache();
+static void set_kernel_boundaries();
+
+int devmem = 0;
+int vtophys_ready = 0;
+int kerneltype;
+#define OS_BSD 1
+#define OS_MACH 2
+#endif
+
+#include "gdbcore.h"
+#include "gdbcmd.h"
+
+extern int errno;
+\f
+
+
+
+
+
+/* Last modification time of executable file.
+ Also used in source.c to compare against mtime of a source file. */
+
+extern int exec_mtime;
+
+/* Virtual addresses of bounds of the two areas of memory in the core file. */
+
+/* extern CORE_ADDR data_start; */
+extern CORE_ADDR data_end;
+extern CORE_ADDR stack_start;
+extern CORE_ADDR stack_end;
+
+/* Virtual addresses of bounds of two areas of memory in the exec file.
+ Note that the data area in the exec file is used only when there is no core file. */
+
+extern CORE_ADDR text_start;
+extern CORE_ADDR text_end;
+
+extern CORE_ADDR exec_data_start;
+extern CORE_ADDR exec_data_end;
+
+/* Address in executable file of start of text area data. */
+
+extern int text_offset;
+
+/* Address in executable file of start of data area data. */
+
+extern int exec_data_offset;
+
+/* Address in core file of start of data area data. */
+
+extern int data_offset;
+
+/* Address in core file of start of stack area data. */
+
+extern int stack_offset;
+
+struct header file_hdr;
+struct som_exec_auxhdr exec_hdr;
+\f
+#ifdef KERNELDEBUG
+/*
+ * Kernel debugging routines.
+ */
+
+static struct pcb pcb;
+static struct pde *pdir;
+static struct hte *htbl;
+static u_int npdir, nhtbl;
+
+static CORE_ADDR
+ksym_lookup(name)
+ char *name;
+{
+ struct symbol *sym;
+ int i;
+
+ if ((i = lookup_misc_func(name)) < 0)
+ error("kernel symbol `%s' not found.", name);
+
+ return (misc_function_vector[i].address);
+}
+
+/*
+ * (re-)set the variables that tell "inside_entry_file" where to end
+ * a stack backtrace.
+ */
+void
+set_kernel_boundaries()
+{
+ switch (kerneltype) {
+ case OS_MACH:
+ startup_file_start = ksym_lookup("$syscall");
+ startup_file_end = ksym_lookup("trap");
+ break;
+ case OS_BSD:
+ startup_file_start = ksym_lookup("syscallinit");
+ startup_file_end = ksym_lookup("$syscallexit");
+ break;
+ }
+}
+
+/*
+ * return true if 'len' bytes starting at 'addr' can be read out as
+ * longwords and/or locally cached (this is mostly for memory mapped
+ * i/o register access when debugging remote kernels).
+ */
+static int
+ok_to_cache(addr, len)
+{
+ static CORE_ADDR ioptr;
+
+ if (! ioptr)
+ ioptr = ksym_lookup("ioptr");
+
+ if (addr >= ioptr && addr < SPA_HIGH)
+ return (0);
+
+ return (1);
+}
+
+static
+physrd(addr, dat, len)
+ u_int addr;
+ char *dat;
+{
+ if (lseek(corechan, addr, L_SET) == -1)
+ return (-1);
+ if (read(corechan, dat, len) != len)
+ return (-1);
+
+ return (0);
+}
+
+/*
+ * When looking at kernel data space through /dev/mem or with a core file, do
+ * virtual memory mapping.
+ */
+static CORE_ADDR
+vtophys(space, addr)
+ unsigned space;
+ CORE_ADDR addr;
+{
+ struct pde *pptr;
+ u_int hindx, vpageno, ppageno;
+ CORE_ADDR phys = ~0;
+
+ if (!vtophys_ready) {
+ phys = addr; /* XXX for kvread */
+ } else if (kerneltype == OS_BSD) {
+ /* make offset into a virtual page no */
+ vpageno = btop(addr);
+ /*
+ * Determine index into hash table, initialize pptr to this
+ * entry (since first word of pte & hte are same), and set
+ * physical page number for first entry in chain.
+ */
+ hindx = pdirhash(space, addr) & (nhtbl-1);
+ pptr = (struct pde *) &htbl[hindx];
+ ppageno = pptr->pde_next;
+ while (1) {
+ if (pptr->pde_end)
+ break;
+ pptr = &pdir[ppageno];
+ /*
+ * If space id & virtual page number match, return
+ * "next PDIR entry of previous PDIR entry" as the
+ * physical page or'd with offset into page.
+ */
+ if (pptr->pde_space == space &&
+ pptr->pde_page == vpageno) {
+ phys = (CORE_ADDR) ((u_int)ptob(ppageno) |
+ (addr & PGOFSET));
+ break;
+ }
+ ppageno = pptr->pde_next;
+ }
+ }
+#ifdef MACHKERNELDEBUG
+ else if (kerneltype == OS_MACH) {
+ (void) mach_vtophys(space, addr, &phys);
+ }
+#endif
+#if 0
+ printf("vtophys(%x.%x) -> %x\n", space, addr, phys);
+#endif
+ return (phys);
+}
+
+static
+kvread(addr)
+ CORE_ADDR addr;
+{
+ CORE_ADDR paddr;
+
+ paddr = vtophys(0, addr);
+ if (paddr != ~0)
+ if (physrd(paddr, (char *)&addr, sizeof(addr)) == 0)
+ return (addr);
+
+ return (~0);
+}
+
+static void
+read_pcb(addr)
+ u_int addr;
+{
+ int i, off;
+ extern char registers[];
+ static int reg2pcb[] = {
+ /* RPB */
+ -1, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
+ 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33,
+ 45, 52, 51, 75, 74, 49, 53, 54, 55, 56, -1, 70, 66, 67, 68, 69,
+ 71, 72, 73, 34, 42, 43, 44, 46, 47, 58, 59, 60, -1, -1, -1, -1,
+ -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
+ -1, -1, -1, -1,
+ /* BSD */
+ -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14,
+ 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30,
+ 43, 64, 67, 68, 67, 47, 51, 52, 53, 54, -1, 35, 31, 32, 33, 34,
+ 36, 37, 38, 39, 40, 41, 42, 44, 45, 56, 57, 58,102,103,104, -1,
+ 70, 71, 72, 73, 74, 75, 76, 77, 78, 80, 82, 84, 86, 88, 90, 92,
+ 94, 96, 98, 100,
+ /* Mach */
+ -1, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13,
+ 14, 15, 16, -1, -1, -1, -1, -1, -1, -1, -1, 17, -1, -1, 18, -1,
+ 25, -1, -1, -1, -1, 30, -1, -1, -1, -1, -1, 20, -1, -1, -1, 19,
+ 21, 22, 23, 24, 26, 27, -1, 28, 29, -1, -1, -1, -1, -1, -1, -1,
+ 34, 35, 36, 37, 38, 39, 40, 41, -1, -1, -1, -1, -1, -1, -1, -1,
+ 42, 44, 46, 48
+ };
+ static struct rpb *rpbaddr = (struct rpb *) 0;
+ static u_int rpbpcbaddr = 0;
+
+ if (!remote_debugging) {
+ /*
+ * If we are debugging a post-mortem and this is the first
+ * call of read_pcb, read the RPB. Also assoicate the
+ * thread/proc running at the time with the RPB.
+ */
+ if (!devmem && rpbpcbaddr == 0) {
+ CORE_ADDR raddr = ksym_lookup("rpb");
+ int usepcb = 1;
+
+ if (raddr != ~0) {
+ rpbaddr = (struct rpb *) malloc(sizeof *rpbaddr);
+ if (!physrd(raddr, (char *)rpbaddr, sizeof *rpbaddr)) {
+ rpbpcbaddr = addr;
+ usepcb = 0;
+ }
+ }
+ if (usepcb) {
+ error("cannot read rpb, using pcb for registers\n");
+ if (rpbaddr)
+ free((char *)rpbaddr);
+ rpbpcbaddr = ~0;
+ }
+ }
+ if (physrd (addr, (char *)&pcb, sizeof pcb))
+ error ("cannot read pcb at %x.\n", addr);
+ } else {
+ if (remote_read_inferior_memory(addr, (char *)&pcb, sizeof pcb))
+ error ("cannot read pcb at %x.\n", addr);
+ }
+
+ if (kerneltype == OS_BSD) {
+ printf("p0br %lx p0lr %lx p1br %lx p1lr %lx\n",
+ pcb.pcb_p0br, pcb.pcb_p0lr, pcb.pcb_p1br, pcb.pcb_p1lr);
+ off = NUM_REGS;
+ } else {
+ printf("pcb %lx psw %lx ksp %lx\n",
+ addr, ((int *)&pcb)[31], ((int *)&pcb)[32]);
+ off = NUM_REGS * 2;
+ }
+ /*
+ * get the register values out of the sys pcb and
+ * store them where `read_register' will find them.
+ */
+ bzero(registers, REGISTER_BYTES);
+ for (i = 0; i < NUM_REGS; ++i)
+ if (reg2pcb[i+off] != -1)
+ supply_register(i, &((int *)&pcb)[reg2pcb[i+off]]);
+ /*
+ * If the RPB is valid for this thread/proc use the register values
+ * contained there.
+ */
+ if (addr == rpbpcbaddr) {
+ off = 0;
+ for (i = 0; i < NUM_REGS; ++i)
+ if (reg2pcb[i+off] != -1)
+ supply_register(i, &((int *)rpbaddr)[reg2pcb[i+off]]);
+ }
+}
+
+void
+setup_kernel_debugging()
+{
+ struct stat stb;
+ CORE_ADDR addr;
+
+ fstat(corechan, &stb);
+ devmem = 0;
+ if ((stb.st_mode & S_IFMT) == S_IFCHR && stb.st_rdev == makedev(2, 0))
+ devmem = 1;
+
+ /* XXX */
+ if (lookup_misc_func("Sysmap") < 0)
+ kerneltype = OS_MACH;
+ else
+ kerneltype = OS_BSD;
+
+ if (kerneltype == OS_BSD) {
+ int len, err = 0;
+
+ /*
+ * Hash table and PDIR are equivalently mapped
+ */
+ nhtbl = kvread(ksym_lookup("nhtbl"));
+ if (nhtbl != ~0) {
+ len = nhtbl * sizeof(*htbl);
+ htbl = (struct hte *) malloc(len);
+ if (htbl) {
+ addr = kvread(ksym_lookup("htbl"));
+ if (physrd(addr, (char *)htbl, len))
+ err++;
+ } else
+ err++;
+ } else
+ err++;
+ npdir = kvread(ksym_lookup("npdir"));
+ if (npdir != ~0) {
+ len = npdir * sizeof(*pdir);
+ pdir = (struct pde *) malloc(len);
+ if (pdir) {
+ addr = kvread(ksym_lookup("pdir"));
+ if (physrd(addr, (char *)pdir, len))
+ err++;
+ } else
+ err++;
+ } else
+ err++;
+ if (err) {
+ error("cannot read PDIR/HTBL");
+ return;
+ }
+ vtophys_ready = 1;
+
+ /*
+ * pcb where "panic" saved registers in first thing in
+ * current u-area. The current u-area is pointed to by
+ * "uptr".
+ */
+ addr = kvread(ksym_lookup("uptr"));
+ if (addr == ~0) {
+ error("cannot read current u-area address");
+ return;
+ }
+ read_pcb(vtophys(0, addr)); /* XXX space */
+ if (!devmem) {
+ /* find stack frame */
+ CORE_ADDR panicstr;
+ char buf[256];
+ register char *cp;
+
+ panicstr = kvread(ksym_lookup("panicstr"));
+ if (panicstr == ~0)
+ return;
+ (void) kernel_core_file_hook(panicstr, buf, sizeof(buf));
+ for (cp = buf; cp < &buf[sizeof(buf)] && *cp; cp++)
+ if (!isascii(*cp) || (!isprint(*cp) && !isspace(*cp)))
+ *cp = '?';
+ if (*cp)
+ *cp = '\0';
+ printf("panic: %s\n", buf);
+ }
+ }
+#ifdef MACHKERNELDEBUG
+ else {
+ int *thread;
+
+ /*
+ * Set up address translation
+ */
+ if (mach_vtophys_init() == 0) {
+ error("cannot initialize vtophys for Mach");
+ return;
+ }
+ vtophys_ready = 1;
+
+ /*
+ * Locate active thread and read PCB
+ * XXX MAJOR HACK
+ * - assumes uni-processor
+ * - assumes position of pcb to avoid mach includes
+ */
+ thread = (int *)kvread(ksym_lookup("active_threads"));
+ addr = kvread(&thread[9]); /* XXX: pcb addr */
+ read_pcb(vtophys(0, addr));
+ }
+#endif
+}
+
+vtop_command(arg)
+ char *arg;
+{
+ u_int sp, off, pa;
+
+ if (!arg)
+ error_no_arg("kernel virtual address");
+ if (!kernel_debugging)
+ error("not debugging kernel");
+
+ sp = 0; /* XXX */
+ off = (u_int) parse_and_eval_address(arg);
+ pa = vtophys(sp, off);
+ printf("%lx.%lx -> ", sp, off);
+ if (pa == ~0)
+ printf("<invalid>\n");
+ else
+ printf("%lx\n", pa);
+}
+
+set_paddr_command(arg)
+ char *arg;
+{
+ u_int addr;
+
+ if (!arg) {
+ if (kerneltype == OS_BSD)
+ error_no_arg("ps-style address for new process");
+ else
+ error_no_arg("thread structure virtual address");
+ }
+ if (!kernel_debugging)
+ error("not debugging kernel");
+
+ addr = (u_int) parse_and_eval_address(arg);
+ if (kerneltype == OS_BSD)
+ addr = ctob(addr);
+ else {
+ addr = kvread(&(((int *)addr)[9])); /* XXX: pcb addr */
+ addr = vtophys(0, addr); /* XXX space */
+ }
+ read_pcb(addr);
+
+ flush_cached_frames();
+ set_current_frame(create_new_frame(read_register(FP_REGNUM), read_pc()));
+ select_frame(get_current_frame(), 0);
+}
+
+/*
+ * read len bytes from kernel virtual address 'addr' into local
+ * buffer 'buf'. Return 0 if read ok, 1 otherwise. On read
+ * errors, portion of buffer not read is zeroed.
+ */
+kernel_core_file_hook(addr, buf, len)
+ CORE_ADDR addr;
+ char *buf;
+ int len;
+{
+ int i;
+ CORE_ADDR paddr;
+
+ while (len > 0) {
+ paddr = vtophys(0, addr); /* XXX space */
+ if (paddr == ~0) {
+ bzero(buf, len);
+ return (1);
+ }
+ /* we can't read across a page boundary */
+ i = min(len, NBPG - (addr & PGOFSET));
+ if (physrd(paddr, buf, i)) {
+ bzero(buf, len);
+ return (1);
+ }
+ buf += i;
+ addr += i;
+ len -= i;
+ }
+ return (0);
+}
+#endif
+
+
+\f
+
+
+
+/* Routines to extract various sized constants out of hppa
+ instructions. */
+
+/* This assumes that no garbage lies outside of the lower bits of
+ value. */
+
+int
+sign_extend (val, bits)
+ unsigned val, bits;
+{
+ return (int)(val >> bits - 1 ? (-1 << bits) | val : val);
+}
+
+/* For many immediate values the sign bit is the low bit! */
+
+int
+low_sign_extend (val, bits)
+ unsigned val, bits;
+{
+ return (int)((val & 0x1 ? (-1 << (bits - 1)) : 0) | val >> 1);
+}
+/* extract the immediate field from a ld{bhw}s instruction */
+
+
+
+unsigned
+get_field (val, from, to)
+ unsigned val, from, to;
+{
+ val = val >> 31 - to;
+ return val & ((1 << 32 - from) - 1);
+}
+
+unsigned
+set_field (val, from, to, new_val)
+ unsigned *val, from, to;
+{
+ unsigned mask = ~((1 << (to - from + 1)) << (31 - from));
+ return *val = *val & mask | (new_val << (31 - from));
+}
+
+/* extract a 3-bit space register number from a be, ble, mtsp or mfsp */
+
+extract_3 (word)
+ unsigned word;
+{
+ return GET_FIELD (word, 18, 18) << 2 | GET_FIELD (word, 16, 17);
+}
+
+extract_5_load (word)
+ unsigned word;
+{
+ return low_sign_extend (word >> 16 & MASK_5, 5);
+}
+
+/* extract the immediate field from a st{bhw}s instruction */
+
+int
+extract_5_store (word)
+ unsigned word;
+{
+ return low_sign_extend (word & MASK_5, 5);
+}
+
+/* extract an 11 bit immediate field */
+
+int
+extract_11 (word)
+ unsigned word;
+{
+ return low_sign_extend (word & MASK_11, 11);
+}
+
+/* extract a 14 bit immediate field */
+
+int
+extract_14 (word)
+ unsigned word;
+{
+ return low_sign_extend (word & MASK_14, 14);
+}
+
+/* deposit a 14 bit constant in a word */
+
+unsigned
+deposit_14 (opnd, word)
+ int opnd;
+ unsigned word;
+{
+ unsigned sign = (opnd < 0 ? 1 : 0);
+
+ return word | ((unsigned)opnd << 1 & MASK_14) | sign;
+}
+
+/* extract a 21 bit constant */
+
+int
+extract_21 (word)
+ unsigned word;
+{
+ int val;
+
+ word &= MASK_21;
+ word <<= 11;
+ val = GET_FIELD (word, 20, 20);
+ val <<= 11;
+ val |= GET_FIELD (word, 9, 19);
+ val <<= 2;
+ val |= GET_FIELD (word, 5, 6);
+ val <<= 5;
+ val |= GET_FIELD (word, 0, 4);
+ val <<= 2;
+ val |= GET_FIELD (word, 7, 8);
+ return sign_extend (val, 21) << 11;
+}
+
+/* deposit a 21 bit constant in a word. Although 21 bit constants are
+ usually the top 21 bits of a 32 bit constant, we assume that only
+ the low 21 bits of opnd are relevant */
+
+unsigned
+deposit_21 (opnd, word)
+ unsigned opnd, word;
+{
+ unsigned val = 0;
+
+ val |= GET_FIELD (opnd, 11 + 14, 11 + 18);
+ val <<= 2;
+ val |= GET_FIELD (opnd, 11 + 12, 11 + 13);
+ val <<= 2;
+ val |= GET_FIELD (opnd, 11 + 19, 11 + 20);
+ val <<= 11;
+ val |= GET_FIELD (opnd, 11 + 1, 11 + 11);
+ val <<= 1;
+ val |= GET_FIELD (opnd, 11 + 0, 11 + 0);
+ return word | val;
+}
+
+/* extract a 12 bit constant from branch instructions */
+
+int
+extract_12 (word)
+ unsigned word;
+{
+ return sign_extend (GET_FIELD (word, 19, 28) |
+ GET_FIELD (word, 29, 29) << 10 |
+ (word & 0x1) << 11, 12) << 2;
+}
+
+/* extract a 17 bit constant from branch instructions, returning the
+ 19 bit signed value. */
+
+int
+extract_17 (word)
+ unsigned word;
+{
+ return sign_extend (GET_FIELD (word, 19, 28) |
+ GET_FIELD (word, 29, 29) << 10 |
+ GET_FIELD (word, 11, 15) << 11 |
+ (word & 0x1) << 16, 17) << 2;
+}
+
+
+CORE_ADDR
+frame_saved_pc (frame)
+ FRAME frame;
+{
+ if (get_current_frame () == frame)
+ {
+ struct frame_saved_regs saved_regs;
+ CORE_ADDR pc = get_frame_pc (frame);
+
+ get_frame_saved_regs (frame, &saved_regs);
+ if (pc >= millicode_start && pc < millicode_end)
+ return read_register (31);
+ else if (saved_regs.regs[RP_REGNUM])
+ return read_memory_integer (saved_regs.regs[RP_REGNUM], 4);
+ else
+ return read_register (RP_REGNUM);
+ }
+ return read_memory_integer (frame->frame - 20, 4) & ~0x3;
+}
+
+
+/* To see if a frame chain is valid, see if the caller looks like it
+ was compiled with gcc. */
+
+int frame_chain_valid (chain, thisframe)
+ FRAME_ADDR chain;
+ FRAME thisframe;
+{
+ if (chain && (chain > 0x60000000
+ /* || remote_debugging -this is no longer used */
+#ifdef KERNELDEBUG
+ || kernel_debugging
+#endif
+ ))
+ {
+ CORE_ADDR pc = get_pc_function_start (FRAME_SAVED_PC (thisframe));
+
+ if (!inside_entry_file (pc))
+ return 0;
+ /* look for stw rp, -20(0,sp); copy 4,1; copy sp, 4 */
+ if (read_memory_integer (pc, 4) == 0x6BC23FD9)
+ pc = pc + 4;
+
+ if (read_memory_integer (pc, 4) == 0x8040241 &&
+ read_memory_integer (pc + 4, 4) == 0x81E0244)
+ return 1;
+ else
+ return 0;
+ }
+ else
+ return 0;
+}
+
+/* Some helper functions. gcc_p returns 1 if the function beginning at
+ pc appears to have been compiled with gcc. hpux_cc_p returns 1 if
+ fn was compiled with hpux cc. gcc functions look like :
+
+ stw rp,-0x14(sp) ; optional
+ or r4,r0,r1
+ or sp,r0,r4
+ stwm r1,framesize(sp)
+
+ hpux cc functions look like:
+
+ stw rp,-0x14(sp) ; optional.
+ stwm r3,framesiz(sp)
+ */
+
+gcc_p (pc)
+ CORE_ADDR pc;
+{
+ if (read_memory_integer (pc, 4) == 0x6BC23FD9)
+ pc = pc + 4;
+
+ if (read_memory_integer (pc, 4) == 0x8040241 &&
+ read_memory_integer (pc + 4, 4) == 0x81E0244)
+ return 1;
+ return 0;
+}
+
+
+find_dummy_frame_regs (frame, frame_saved_regs)
+ struct frame_info *frame;
+ struct frame_saved_regs *frame_saved_regs;
+{
+ CORE_ADDR fp = frame->frame;
+ int i;
+
+ frame_saved_regs->regs[RP_REGNUM] = fp - 20 & ~0x3;
+ frame_saved_regs->regs[FP_REGNUM] = fp;
+ frame_saved_regs->regs[1] = fp + 8;
+ frame_saved_regs->regs[3] = fp + 12;
+ for (fp += 16, i = 3; i < 30; fp += 4, i++)
+ frame_saved_regs->regs[i] = fp;
+ frame_saved_regs->regs[31] = fp;
+ fp += 4;
+ for (i = FP0_REGNUM; i < NUM_REGS; i++, fp += 8)
+ frame_saved_regs->regs[i] = fp;
+ /* depend on last increment of fp */
+ frame_saved_regs->regs[IPSW_REGNUM] = fp - 4;
+ frame_saved_regs->regs[SAR_REGNUM] = fp;
+ fp += 4;
+ frame_saved_regs->regs[PCOQ_TAIL_REGNUM] = fp;
+ frame_saved_regs->regs[PCSQ_TAIL_REGNUM] = fp;
+}
+
+CORE_ADDR
+hp_push_arguments (nargs, args, sp, struct_return, struct_addr)
+ int nargs;
+ value *args;
+ CORE_ADDR sp;
+ int struct_return;
+ CORE_ADDR struct_addr;
+{
+ /* array of arguments' offsets */
+ int *offset = (int *)alloca(nargs);
+ int cum = 0;
+ int i, alignment;
+
+ for (i = 0; i < nargs; i++)
+ {
+ cum += TYPE_LENGTH (VALUE_TYPE (args[i]));
+ /* value must go at proper alignment. Assume alignment is a
+ power of two.*/
+ alignment = hp_alignof (VALUE_TYPE (args[i]));
+ if (cum % alignment)
+ cum = (cum + alignment) & -alignment;
+ offset[i] = -cum;
+ }
+ for (i == 0; i < nargs; i++)
+ {
+ write_memory (sp + offset[i], VALUE_CONTENTS (args[i]), sizeof(int));
+ }
+ sp += min ((cum + 7) & -8, 48);
+ if (struct_return)
+ write_register (28, struct_addr);
+ return sp + 48;
+}
+
+/* return the alignment of a type in bytes. Structures have the maximum
+ alignment required by their fields. */
+
+int
+hp_alignof (arg)
+ struct type *arg;
+{
+ int max_align, align, i;
+ switch (TYPE_CODE (arg))
+ {
+ case TYPE_CODE_PTR:
+ case TYPE_CODE_INT:
+ case TYPE_CODE_FLT:
+ return TYPE_LENGTH (arg);
+ case TYPE_CODE_ARRAY:
+ return hp_alignof (TYPE_FIELD_TYPE (arg, 0));
+ case TYPE_CODE_STRUCT:
+ case TYPE_CODE_UNION:
+ max_align = 2;
+ for (i = 0; i < TYPE_NFIELDS (arg); i++)
+ {
+ /* Bit fields have no real alignment. */
+ if (!TYPE_FIELD_BITPOS (arg, i))
+ {
+ align = hp_alignof (TYPE_FIELD_TYPE (arg, i));
+ max_align = max (max_align, align);
+ }
+ }
+ return max_align;
+ default:
+ return 4;
+ }
+}
+
+/* Print the register regnum, or all registers if regnum is -1 */
+
+pa_do_registers_info (regnum, fpregs)
+ int regnum;
+ int fpregs;
+{
+ char raw_regs [REGISTER_BYTES];
+ int i;
+
+ for (i = 0; i < NUM_REGS; i++)
+ read_relative_register_raw_bytes (i, raw_regs + REGISTER_BYTE (i));
+ if (regnum = -1)
+ pa_print_registers (raw_regs, regnum);
+ else if (regnum < FP0_REGNUM)
+ {
+ printf ("%s %x\n", reg_names[regnum], *(long *)(raw_regs +
+ REGISTER_BYTE (regnum)));
+ }
+ else
+ pa_print_fp_reg (regnum);
+}
+
+pa_print_registers (raw_regs, regnum)
+ char *raw_regs;
+ int regnum;
+{
+ int i;
+
+ for (i = 0; i < 18; i++)
+ printf ("%8.8s: %8x %8.8s: %8x %8.8s: %8x %8.8s: %8x\n",
+ reg_names[i],
+ *(int *)(raw_regs + REGISTER_BYTE (i)),
+ reg_names[i + 18],
+ *(int *)(raw_regs + REGISTER_BYTE (i + 18)),
+ reg_names[i + 36],
+ *(int *)(raw_regs + REGISTER_BYTE (i + 36)),
+ reg_names[i + 54],
+ *(int *)(raw_regs + REGISTER_BYTE (i + 54)));
+ for (i = 72; i < NUM_REGS; i++)
+ pa_print_fp_reg (i);
+}
+
+pa_print_fp_reg (i)
+ int i;
+{
+ unsigned char raw_buffer[MAX_REGISTER_RAW_SIZE];
+ unsigned char virtual_buffer[MAX_REGISTER_VIRTUAL_SIZE];
+ REGISTER_TYPE val;
+
+ /* Get the data in raw format, then convert also to virtual format. */
+ read_relative_register_raw_bytes (i, raw_buffer);
+ REGISTER_CONVERT_TO_VIRTUAL (i, raw_buffer, virtual_buffer);
+
+ fputs_filtered (reg_names[i], stdout);
+ print_spaces_filtered (15 - strlen (reg_names[i]), stdout);
+
+ val_print (REGISTER_VIRTUAL_TYPE (i), virtual_buffer, 0, stdout, 0,
+ 1, 0, Val_pretty_default);
+ printf_filtered ("\n");
+
+}
+
+/*
+ * Virtual to physical translation routines for Utah's Mach 3.0
+ */
+#ifdef MACHKERNELDEBUG
+
+#define STATIC
+
+#if 0 /* too many includes to resolve, too much crap */
+#include <kern/queue.h>
+#include <vm/pmap.h>
+#include <mach/vm_prot.h>
+#else
+/* queue.h */
+struct queue_entry {
+ struct queue_entry *next; /* next element */
+ struct queue_entry *prev; /* previous element */
+};
+
+typedef struct queue_entry *queue_t;
+typedef struct queue_entry queue_head_t;
+typedef struct queue_entry queue_chain_t;
+typedef struct queue_entry *queue_entry_t;
+
+/* pmap.h */
+#define HP800_HASHSIZE 1024
+#define HP800_HASHSIZE_LOG2 10
+
+#define pmap_hash(space, offset) \
+ (((unsigned) (space) << 5 ^ \
+ ((unsigned) (offset) >> 19 | (unsigned) (space) << 13) ^ \
+ (unsigned) (offset) >> 11) & (HP800_HASHSIZE-1))
+
+struct mapping {
+ queue_head_t hash_link; /* hash table links */
+ queue_head_t phys_link; /* for mappings of a given PA */
+ space_t space; /* virtual space */
+ unsigned offset; /* virtual page number */
+ unsigned tlbpage; /* physical page (for TLB load) */
+ unsigned tlbprot; /* prot/access rights (for TLB load) */
+ struct pmap *pmap; /* pmap mapping belongs to */
+};
+
+struct phys_entry {
+ queue_head_t phys_link; /* head of mappings of a given PA */
+ struct mapping *writer; /* mapping with R/W access */
+ unsigned tlbprot; /* TLB format protection */
+};
+
+#endif
+
+#define atop(a) ((unsigned)(a) >> 11)
+#define ptoa(p) ((unsigned)(p) << 11)
+#define trunc_page(a) ((unsigned)(a) & ~2047)
+
+STATIC long equiv_end;
+STATIC queue_head_t *Ovtop_table, *vtop_table, *Ofree_mapping, free_mapping;
+STATIC struct phys_entry *Ophys_table, *phys_table;
+STATIC long vm_last_phys, vm_first_phys;
+STATIC struct mapping *firstmap, *lastmap, *Omap_table, *map_table;
+STATIC unsigned Omlow, Omhigh, Omhead, Ovlow, Ovhigh, Oplow, Ophigh;
+STATIC unsigned mlow, mhigh, mhead, vlow, vhigh, plow, phigh;
+STATIC int vtopsize, physsize, mapsize;
+STATIC int kmemfd;
+
+#define IS_OVTOPPTR(p) ((unsigned)(p) >= Ovlow && (unsigned)(p) < Ovhigh)
+#define IS_OMAPPTR(p) ((unsigned)(p) >= Omlow && (unsigned)(p) < Omhigh)
+#define IS_OPHYSPTR(p) ((unsigned)(p) >= Oplow && (unsigned)(p) < Ophigh)
+#define IS_VTOPPTR(p) ((unsigned)(p) >= vlow && (unsigned)(p) < vhigh)
+#define IS_MAPPTR(p) ((unsigned)(p) >= mlow && (unsigned)(p) < mhigh)
+#define IS_PHYSPTR(p) ((unsigned)(p) >= plow && (unsigned)(p) < phigh)
+
+struct mapstate {
+ char unused;
+ char flags;
+ short hashix;
+ short physix;
+} *mapstate;
+
+/* flags */
+#define M_ISFREE 1
+#define M_ISHASH 2
+#define M_ISPHYS 4
+
+mach_vtophys_init()
+{
+ int errors = 0;
+
+ if (!readdata())
+ errors++;
+ if (!verifydata())
+ errors++;
+ if (!errors)
+ return(1);
+ fflush(stdout);
+ fprintf(stderr,
+ "translate: may not be able to translate all addresses\n");
+ return(0);
+}
+
+mach_vtophys(space, off, pa)
+ unsigned space, off, *pa;
+{
+ register int i;
+ register queue_t qp;
+ register struct mapping *mp;
+ int poff;
+
+ /*
+ * Kernel IO or equivilently mapped, one to one.
+ */
+ if (space == 0 && (long)off < equiv_end) {
+ *pa = off;
+ return(1);
+ }
+ /*
+ * Else look it up in specified space
+ */
+ poff = off - trunc_page(off);
+ off = trunc_page(off);
+ qp = &vtop_table[pmap_hash(space, off)];
+ for (mp = (struct mapping *)qp->next;
+ qp != (queue_entry_t)mp;
+ mp = (struct mapping *)mp->hash_link.next) {
+ if (mp->space == space && mp->offset == off) {
+ *pa = (mp->tlbpage << 7) | poff;
+ return(1);
+ }
+ }
+ return(0);
+}
+
+STATIC
+readdata()
+{
+ char *tmp, *mach_malloc();
+ long size;
+
+ /* easy scalars */
+ mach_read("equiv_end", ~0, (char *)&equiv_end, sizeof equiv_end);
+ mach_read("vm_first_phys", ~0,
+ (char *)&vm_first_phys, sizeof vm_first_phys);
+ mach_read("vm_last_phys", ~0,
+ (char *)&vm_last_phys, sizeof vm_last_phys);
+ mach_read("firstmap", ~0, (char *)&firstmap, sizeof firstmap);
+ mach_read("lastmap", ~0, (char *)&lastmap, sizeof lastmap);
+
+ /* virtual to physical hash table */
+ vtopsize = HP800_HASHSIZE;
+ size = vtopsize * sizeof(queue_head_t);
+ tmp = mach_malloc("vtop table", size);
+ mach_read("vtop_table", ~0, (char *)&Ovtop_table, sizeof Ovtop_table);
+ mach_read("vtop table", (CORE_ADDR)Ovtop_table, tmp, size);
+ vtop_table = (queue_head_t *) tmp;
+
+ /* inverted page table */
+ physsize = atop(vm_last_phys - vm_first_phys);
+ size = physsize * sizeof(struct phys_entry);
+ tmp = mach_malloc("phys table", size);
+ mach_read("phys_table", ~0, (char *)&Ophys_table, sizeof Ophys_table);
+ mach_read("phys table", (CORE_ADDR)Ophys_table, tmp, size);
+ phys_table = (struct phys_entry *) tmp;
+
+ /* mapping structures */
+ Ofree_mapping = (queue_head_t *) ksym_lookup("free_mapping");
+ mach_read("free mapping", (CORE_ADDR)Ofree_mapping,
+ (char *) &free_mapping, sizeof free_mapping);
+ Omap_table = firstmap;
+ mapsize = lastmap - firstmap;
+ size = mapsize * sizeof(struct mapping);
+ tmp = mach_malloc("mapping table", size);
+ mach_read("mapping table", (CORE_ADDR)Omap_table, tmp, size);
+ map_table = (struct mapping *) tmp;
+
+ /* set limits */
+ Ovlow = (unsigned) Ovtop_table;
+ Ovhigh = (unsigned) &Ovtop_table[vtopsize];
+ Oplow = (unsigned) Ophys_table;
+ Ophigh = (unsigned) &Ophys_table[physsize];
+ Omhead = (unsigned) Ofree_mapping;
+ Omlow = (unsigned) firstmap;
+ Omhigh = (unsigned) lastmap;
+ mlow = (unsigned) map_table;
+ mhigh = (unsigned) &map_table[mapsize];
+ mhead = (unsigned) &free_mapping;
+ vlow = (unsigned) vtop_table;
+ vhigh = (unsigned) &vtop_table[vtopsize];
+ plow = (unsigned) phys_table;
+ phigh = (unsigned) &phys_table[physsize];
+
+#if 0
+ fprintf(stderr, "Ovtop [%#x-%#x) Ophys [%#x-%#x) Omap %#x [%#x-%#x)\n",
+ Ovlow, Ovhigh, Oplow, Ophigh, Omhead, Omlow, Omhigh);
+ fprintf(stderr, "vtop [%#x-%#x) phys [%#x-%#x) map %#x [%#x-%#x)\n",
+ vlow, vhigh, plow, phigh, mhead, mlow, mhigh);
+#endif
+ return(adjustdata());
+}
+
+STATIC unsigned
+ptrcvt(ptr)
+ unsigned ptr;
+{
+ unsigned ret;
+ char *str;
+
+ if (ptr == 0) {
+ ret = ptr;
+ str = "null";
+ } else if (IS_OVTOPPTR(ptr)) {
+ ret = vlow + (ptr - Ovlow);
+ str = "vtop";
+ } else if (IS_OPHYSPTR(ptr)) {
+ ret = plow + (ptr - Oplow);
+ str = "phys";
+ } else if (IS_OMAPPTR(ptr)) {
+ ret = mlow + (ptr - Omlow);
+ str = "map";
+ } else if (ptr == Omhead) {
+ ret = mhead;
+ str = "maphead";
+ } else {
+ error("bogus pointer %#x", ptr);
+ str = "wild";
+ ret = ptr;
+ }
+#if 0
+ fprintf(stderr, "%x (%s) -> %x\n", ptr, str, ret);
+#endif
+ return(ret);
+}
+
+STATIC int
+adjustdata()
+{
+ register int i, lim;
+ queue_head_t *nq;
+ struct phys_entry *np;
+ struct mapping *nm;
+
+ /* hash table */
+ lim = vtopsize;
+ for (nq = vtop_table; nq < &vtop_table[lim]; nq++) {
+ nq->next = (queue_entry_t) ptrcvt((unsigned)nq->next);
+ nq->prev = (queue_entry_t) ptrcvt((unsigned)nq->prev);
+ }
+
+ /* IPT */
+ lim = physsize;
+ for (np = phys_table; np < &phys_table[lim]; np++) {
+ np->phys_link.next = (queue_entry_t)
+ ptrcvt((unsigned)np->phys_link.next);
+ np->phys_link.prev = (queue_entry_t)
+ ptrcvt((unsigned)np->phys_link.prev);
+ np->writer = (struct mapping *) ptrcvt((unsigned)np->writer);
+ }
+
+ /* mapping table */
+ free_mapping.next = (queue_entry_t)ptrcvt((unsigned)free_mapping.next);
+ free_mapping.prev = (queue_entry_t)ptrcvt((unsigned)free_mapping.prev);
+ lim = mapsize;
+ for (nm = map_table; nm < &map_table[lim]; nm++) {
+ nm->hash_link.next = (queue_entry_t)
+ ptrcvt((unsigned)nm->hash_link.next);
+ nm->hash_link.prev = (queue_entry_t)
+ ptrcvt((unsigned)nm->hash_link.prev);
+ nm->phys_link.next = (queue_entry_t)
+ ptrcvt((unsigned)nm->phys_link.next);
+ nm->phys_link.prev = (queue_entry_t)
+ ptrcvt((unsigned)nm->phys_link.prev);
+ }
+ return(1);
+}
+
+/*
+ * Consistency checks, make sure:
+ *
+ * 1. all mappings are accounted for
+ * 2. no cycles
+ * 3. no wild pointers
+ * 4. consisent TLB state
+ */
+STATIC int
+verifydata()
+{
+ register struct mapstate *ms;
+ register int i;
+ int errors = 0;
+
+ mapstate = (struct mapstate *)
+ mach_malloc("map state", mapsize * sizeof(struct mapstate));
+ for (ms = mapstate; ms < &mapstate[mapsize]; ms++) {
+ ms->flags = 0;
+ ms->hashix = ms->physix = -2;
+ }
+
+ /*
+ * Check the free list
+ */
+ checkhashchain(&free_mapping, M_ISFREE, -1);
+ /*
+ * Check every hash chain
+ */
+ for (i = 0; i < vtopsize; i++)
+ checkhashchain(&vtop_table[i], M_ISHASH, i);
+ /*
+ * Check every phys chain
+ */
+ for (i = 0; i < physsize; i++)
+ checkphyschain(&phys_table[i].phys_link, M_ISPHYS, i);
+ /*
+ * Cycle through mapstate looking for anomolies
+ */
+ ms = mapstate;
+ for (i = 0; i < mapsize; i++) {
+ switch (ms->flags) {
+ case M_ISFREE:
+ case M_ISHASH|M_ISPHYS:
+ break;
+ case 0:
+ merror(ms, "not found");
+ errors++;
+ break;
+ case M_ISHASH:
+ merror(ms, "in vtop but not phys");
+ errors++;
+ break;
+ case M_ISPHYS:
+ merror(ms, "in phys but not vtop");
+ errors++;
+ break;
+ default:
+ merror(ms, "totally bogus");
+ errors++;
+ break;
+ }
+ ms++;
+ }
+ return(errors ? 0 : 1);
+}
+
+STATIC void
+checkhashchain(qhp, flag, ix)
+ queue_entry_t qhp;
+{
+ register queue_entry_t qp, pqp;
+ register struct mapping *mp;
+ struct mapstate *ms;
+
+ qp = qhp->next;
+ /*
+ * First element is not a mapping structure,
+ * chain must be empty.
+ */
+ if (!IS_MAPPTR(qp)) {
+ if (qp != qhp || qp != qhp->prev)
+ fatal("bad vtop_table header pointer");
+ } else {
+ pqp = qhp;
+ do {
+ mp = (struct mapping *) qp;
+ qp = &mp->hash_link;
+ if (qp->prev != pqp)
+ fatal("bad hash_link prev pointer");
+ ms = &mapstate[mp-map_table];
+ ms->flags |= flag;
+ ms->hashix = ix;
+ pqp = (queue_entry_t) mp;
+ qp = qp->next;
+ } while (IS_MAPPTR(qp));
+ if (qp != qhp)
+ fatal("bad hash_link next pointer");
+ }
+}
+
+STATIC void
+checkphyschain(qhp, flag, ix)
+ queue_entry_t qhp;
+{
+ register queue_entry_t qp, pqp;
+ register struct mapping *mp;
+ struct mapstate *ms;
+
+ qp = qhp->next;
+ /*
+ * First element is not a mapping structure,
+ * chain must be empty.
+ */
+ if (!IS_MAPPTR(qp)) {
+ if (qp != qhp || qp != qhp->prev)
+ fatal("bad phys_table header pointer");
+ } else {
+ pqp = qhp;
+ do {
+ mp = (struct mapping *) qp;
+ qp = &mp->phys_link;
+ if (qp->prev != pqp)
+ fatal("bad phys_link prev pointer");
+ ms = &mapstate[mp-map_table];
+ ms->flags |= flag;
+ ms->physix = ix;
+ pqp = (queue_entry_t) mp;
+ qp = qp->next;
+ } while (IS_MAPPTR(qp));
+ if (qp != qhp)
+ fatal("bad phys_link next pointer");
+ }
+}
+
+STATIC void
+merror(ms, str)
+ struct mapstate *ms;
+ char *str;
+{
+ terminal_ours();
+ fflush(stdout);
+ fprintf(stderr,
+ "vtophys: %s: %c%c%c, hashix %d, physix %d, mapping %x\n",
+ str,
+ (ms->flags & M_ISFREE) ? 'F' : '-',
+ (ms->flags & M_ISHASH) ? 'H' : '-',
+ (ms->flags & M_ISPHYS) ? 'P' : '-',
+ ms->hashix, ms->physix, &map_table[ms-mapstate]);
+ return_to_top_level();
+}
+
+STATIC int
+mach_read(str, from, top, size)
+ char *str;
+ CORE_ADDR from;
+ char *top;
+ int size;
+{
+ CORE_ADDR paddr;
+
+ if (from == ~0)
+ from = ksym_lookup(str);
+ paddr = vtophys(0, from);
+ if (paddr == ~0 || physrd(paddr, top, size) != 0)
+ fatal("cannot read %s", str);
+}
+
+STATIC char *
+mach_malloc(str, size)
+ char *str;
+ int size;
+{
+ char *ptr = (char *) malloc(size);
+
+ if (ptr == 0)
+ fatal("no memory for %s", str);
+ return(ptr);
+}
+#endif
+
+#ifdef KERNELDEBUG
+void
+_initialize_hp9k8_dep()
+{
+ add_com ("process-address", class_obscure, set_paddr_command,
+"The process identified by (ps-style) ADDR becomes the\n\
+\"current\" process context for kernel debugging.");
+ add_com_alias ("paddr", "process-address", class_obscure, 0);
+ add_com ("virtual-to-physical", class_obscure, vtop_command,
+"Translates the kernel virtual address ADDR into a physical address.");
+ add_com_alias ("vtop", "virtual-to-physical", class_obscure, 0);
+}
+#endif
+
+
+
--- /dev/null
+/* Machine-dependent code which would otherwise be in infptrace.c,
+ for GDB, the GNU debugger. This code is for the HP PA-RISC cpu.
+ Copyright (C) 1986, 1987, 1989, 1990, 1991 Free Software Foundation, Inc.
+
+ Contributed by the Center for Software Science at the
+ University of Utah (pa-gdb-bugs@cs.utah.edu).
+
+/* Low level Unix child interface to ptrace, for GDB when running under Unix.
+ Copyright (C) 1988, 1989, 1990, 1991 Free Software Foundation, Inc.
+
+This file is part of GDB.
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with this program; if not, write to the Free Software
+Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+#include <stdio.h>
+#include "defs.h"
+#include "frame.h"
+#include "inferior.h"
+#include "target.h"
+
+#ifdef USG
+#include <sys/types.h>
+#endif
+
+#include <sys/param.h>
+#include <sys/dir.h>
+#include <signal.h>
+#include <sys/ioctl.h>
+
+#include <sys/ptrace.h>
+
+
+#ifndef PT_ATTACH
+#define PT_ATTACH PTRACE_ATTACH
+#endif
+#ifndef PT_DETACH
+#define PT_DETACH PTRACE_DETACH
+#endif
+
+#include "gdbcore.h"
+#include <sys/user.h> /* After a.out.h */
+#include <sys/file.h>
+#include <sys/stat.h>
+\f
+/* This function simply calls ptrace with the given arguments.
+ It exists so that all calls to ptrace are isolated in this
+ machine-dependent file. */
+int
+call_ptrace (request, pid, addr, data)
+ int request, pid, *addr, data;
+{
+ return ptrace (request, pid, addr, data, 0);
+}
+
+#ifdef DEBUG_PTRACE
+/* For the rest of the file, use an extra level of indirection */
+/* This lets us breakpoint usefully on call_ptrace. */
+#define ptrace call_ptrace
+#endif
+
+/* This is used when GDB is exiting. It gives less chance of error.*/
+
+void
+kill_inferior_fast ()
+{
+ if (inferior_pid == 0)
+ return;
+ ptrace (PT_EXIT, inferior_pid, 0, 0, 0); /* PT_EXIT = PT_KILL ? */
+ wait ((int *)0);
+}
+
+void
+kill_inferior ()
+{
+ kill_inferior_fast ();
+ target_mourn_inferior ();
+}
+
+/* Resume execution of the inferior process.
+ If STEP is nonzero, single-step it.
+ If SIGNAL is nonzero, give it that signal. */
+
+void
+child_resume (step, signal)
+ int step;
+ int signal;
+{
+ errno = 0;
+
+ /* An address of (int *)1 tells ptrace to continue from where it was.
+ (If GDB wanted it to start some other way, we have already written
+ a new PC value to the child.) */
+
+ if (step)
+ ptrace (PT_SINGLE, inferior_pid, (int *)1, signal, 0);
+ else
+ ptrace (PT_CONTIN, inferior_pid, (int *)1, signal, 0);
+
+ if (errno)
+ perror_with_name ("ptrace");
+}
+\f
+#ifdef ATTACH_DETACH
+/* Nonzero if we are debugging an attached process rather than
+ an inferior. */
+extern int attach_flag;
+
+/* Start debugging the process whose number is PID. */
+int
+attach (pid)
+ int pid;
+{
+ errno = 0;
+ ptrace (PT_ATTACH, pid, 0, 0, 0);
+ if (errno)
+ perror_with_name ("ptrace");
+ attach_flag = 1;
+ return pid;
+}
+
+/* Stop debugging the process whose number is PID
+ and continue it with signal number SIGNAL.
+ SIGNAL = 0 means just continue it. */
+
+void
+detach (signal)
+ int signal;
+{
+ errno = 0;
+ ptrace (PT_DETACH, inferior_pid, 1, signal, 0);
+ if (errno)
+ perror_with_name ("ptrace");
+ attach_flag = 0;
+}
+#endif /* ATTACH_DETACH */
+\f
+#if !defined (FETCH_INFERIOR_REGISTERS)
+
+/* KERNEL_U_ADDR is the amount to subtract from u.u_ar0
+ to get the offset in the core file of the register values. */
+#if defined (KERNEL_U_ADDR_BSD)
+/* Get kernel_u_addr using BSD-style nlist(). */
+CORE_ADDR kernel_u_addr;
+
+#include <a.out.gnu.h> /* For struct nlist */
+
+void
+_initialize_kernel_u_addr ()
+{
+ struct nlist names[2];
+
+ names[0].n_un.n_name = "_u";
+ names[1].n_un.n_name = NULL;
+ if (nlist ("/vmunix", names) == 0)
+ kernel_u_addr = names[0].n_value;
+ else
+ fatal ("Unable to get kernel u area address.");
+}
+#endif /* KERNEL_U_ADDR_BSD. */
+
+#if defined (KERNEL_U_ADDR_HPUX)
+/* Get kernel_u_addr using HPUX-style nlist(). */
+CORE_ADDR kernel_u_addr;
+
+struct hpnlist {
+ char * n_name;
+ long n_value;
+ unsigned char n_type;
+ unsigned char n_length;
+ short n_almod;
+ short n_unused;
+};
+static struct hpnlist nl[] = {{ "_u", -1, }, { (char *) 0, }};
+
+/* read the value of the u area from the hp-ux kernel */
+void _initialize_kernel_u_addr ()
+{
+ struct user u;
+ nlist ("/hp-ux", &nl);
+ kernel_u_addr = nl[0].n_value;
+}
+#endif /* KERNEL_U_ADDR_HPUX. */
+
+#if !defined (offsetof)
+#define offsetof(TYPE, MEMBER) ((unsigned long) &((TYPE *)0)->MEMBER)
+#endif
+
+/* U_REGS_OFFSET is the offset of the registers within the u area. */
+#if !defined (U_REGS_OFFSET)
+#define U_REGS_OFFSET \
+ ptrace (PT_READ_U, inferior_pid, \
+ (int *)(offsetof (struct user, u_ar0)), 0, 0) - KERNEL_U_ADDR
+#endif
+
+/* Registers we shouldn't try to fetch. */
+#if !defined (CANNOT_FETCH_REGISTER)
+#define CANNOT_FETCH_REGISTER(regno) 0
+#endif
+
+/* Fetch one register. */
+
+static void
+fetch_register (regno)
+ int regno;
+{
+ register unsigned int regaddr;
+ char buf[MAX_REGISTER_RAW_SIZE];
+ char mess[128]; /* For messages */
+ register int i;
+
+ /* Offset of registers within the u area. */
+ unsigned int offset;
+
+ if (CANNOT_FETCH_REGISTER (regno))
+ {
+ bzero (buf, REGISTER_RAW_SIZE (regno)); /* Supply zeroes */
+ supply_register (regno, buf);
+ return;
+ }
+
+ offset = U_REGS_OFFSET;
+
+ regaddr = register_addr (regno, offset);
+ for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof (int))
+ {
+ errno = 0;
+ *(int *) &buf[i] = ptrace (PT_RUREGS, inferior_pid, (int *)regaddr, 0, 0);
+ regaddr += sizeof (int);
+ if (errno != 0)
+ {
+ sprintf (mess, "reading register %s (#%d)", reg_names[regno], regno);
+ perror_with_name (mess);
+ }
+ }
+ if (regno == PCOQ_HEAD_REGNUM || regno == PCOQ_TAIL_REGNUM)
+ buf[3] &= ~0x3;
+ supply_register (regno, buf);
+}
+
+
+/* Fetch all registers, or just one, from the child process. */
+
+void
+fetch_inferior_registers (regno)
+ int regno;
+{
+ if (regno == -1)
+ for (regno = 0; regno < NUM_REGS; regno++)
+ fetch_register (regno);
+ else
+ fetch_register (regno);
+}
+
+/* Registers we shouldn't try to store. */
+#if !defined (CANNOT_STORE_REGISTER)
+#define CANNOT_STORE_REGISTER(regno) 0
+#endif
+
+/* Store our register values back into the inferior.
+ If REGNO is -1, do this for all registers.
+ Otherwise, REGNO specifies which register (so we can save time). */
+
+void
+store_inferior_registers (regno)
+ int regno;
+{
+ register unsigned int regaddr;
+ char buf[80];
+ extern char registers[];
+ register int i;
+
+ unsigned int offset = U_REGS_OFFSET;
+
+ if (regno >= 0)
+ {
+ regaddr = register_addr (regno, offset);
+ for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof(int))
+ {
+ errno = 0;
+ ptrace (PT_WUAREA, inferior_pid, (int *)regaddr,
+ *(int *) ®isters[REGISTER_BYTE (regno) + i], 0);
+ if (errno != 0)
+ {
+ sprintf (buf, "writing register number %d(%d)", regno, i);
+ perror_with_name (buf);
+ }
+ regaddr += sizeof(int);
+ }
+ }
+ else
+ {
+ for (regno = 0; regno < NUM_REGS; regno++)
+ {
+ if (CANNOT_STORE_REGISTER (regno))
+ continue;
+ regaddr = register_addr (regno, offset);
+ for (i = 0; i < REGISTER_RAW_SIZE (regno); i += sizeof(int))
+ {
+ errno = 0;
+ ptrace (PT_WUAREA, inferior_pid, (int *)regaddr,
+ *(int *) ®isters[REGISTER_BYTE (regno) + i], 0);
+ if (errno != 0)
+ {
+ sprintf (buf, "writing register number %d(%d)", regno, i);
+ perror_with_name (buf);
+ }
+ regaddr += sizeof(int);
+ }
+ }
+ }
+ return;
+}
+#endif /* !defined (FETCH_INFERIOR_REGISTERS). */
+\f
+/* NOTE! I tried using PTRACE_READDATA, etc., to read and write memory
+ in the NEW_SUN_PTRACE case.
+ It ought to be straightforward. But it appears that writing did
+ not write the data that I specified. I cannot understand where
+ it got the data that it actually did write. */
+
+/* Copy LEN bytes to or from inferior's memory starting at MEMADDR
+ to debugger memory starting at MYADDR. Copy to inferior if
+ WRITE is nonzero.
+
+ Returns the length copied, which is either the LEN argument or zero.
+ This xfer function does not do partial moves, since child_ops
+ doesn't allow memory operations to cross below us in the target stack
+ anyway. */
+
+int
+child_xfer_memory (memaddr, myaddr, len, write, target)
+ CORE_ADDR memaddr;
+ char *myaddr;
+ int len;
+ int write;
+ struct target_ops *target; /* ignored */
+{
+ register int i;
+ /* Round starting address down to longword boundary. */
+ register CORE_ADDR addr = memaddr & - sizeof (int);
+ /* Round ending address up; get number of longwords that makes. */
+ register int count
+ = (((memaddr + len) - addr) + sizeof (int) - 1) / sizeof (int);
+ /* Allocate buffer of that many longwords. */
+ register int *buffer = (int *) alloca (count * sizeof (int));
+
+ if (write)
+ {
+ /* Fill start and end extra bytes of buffer with existing memory data. */
+
+ if (addr != memaddr || len < (int)sizeof (int)) {
+ /* Need part of initial word -- fetch it. */
+ buffer[0] = ptrace (PT_RIUSER, inferior_pid, (int *)addr, 0, 0);
+ }
+
+ if (count > 1) /* FIXME, avoid if even boundary */
+ {
+ buffer[count - 1]
+ = ptrace (PT_RIUSER, inferior_pid,
+ (int *)(addr + (count - 1) * sizeof (int)), 0, 0);
+ }
+
+ /* Copy data to be written over corresponding part of buffer */
+
+ bcopy (myaddr, (char *) buffer + (memaddr & (sizeof (int) - 1)), len);
+
+ /* Write the entire buffer. */
+
+ for (i = 0; i < count; i++, addr += sizeof (int))
+ {
+ errno = 0;
+ ptrace (PT_WDUSER, inferior_pid, (int *)addr, buffer[i], 0);
+ if (errno)
+ {
+ /* Using the appropriate one (I or D) is necessary for
+ Gould NP1, at least. */
+ errno = 0;
+ ptrace (PT_WIUSER, inferior_pid, (int *)addr, buffer[i], 0);
+ }
+ if (errno)
+ return 0;
+ }
+ }
+ else
+ {
+ /* Read all the longwords */
+ for (i = 0; i < count; i++, addr += sizeof (int))
+ {
+ errno = 0;
+ buffer[i] = ptrace (PT_RIUSER, inferior_pid, (int *)addr, 0, 0);
+ if (errno)
+ return 0;
+ QUIT;
+ }
+
+ /* Copy appropriate bytes out of the buffer. */
+ bcopy ((char *) buffer + (memaddr & (sizeof (int) - 1)), myaddr, len);
+ }
+ return len;
+}
+
+
+
+
+int
+getpagesize()
+{
+ return(4096);
+}
's/^.*\(_initialize_[a-zA-Z0-9_]*\).*$/ {extern void \1 (); \1 ();}/'\
| sort -u
elif test "`$MUNCH_NM main.o | egrep '[TD] _?main$'`" = "" ; then
- # System V style nm
- shift;
- $MUNCH_NM $* | egrep '_initialize_.*' | egrep '\.text'|\
- sed -e \
- 's/^.*\(_initialize_[a-zA-Z0-9_]*\).*/ {extern void \1 (); \1 ();}/' \
- | sort -u
+ if test "`$MUNCH_NM main.o | head -6 | egrep 'Subspace$'`" != "" ; then
+ # HP PA RISC compilers don't prepend underscores
+ shift;
+ $MUNCH_NM $* | egrep '_initialize_.*' | \
+ sed -e \
+ 's/^.*\(_initialize_[a-zA-Z0-9_]*\).*/ {extern void \1 (); \1 ();}/' \
+ | sort -u
+ else
+ # System V style nm
+ shift;
+ $MUNCH_NM $* | egrep '_initialize_.*' | egrep '\.text'|\
+ sed -e \
+ 's/^.*\(_initialize_[a-zA-Z0-9_]*\).*/ {extern void \1 (); \1 ();}/' \
+ | sort -u
+ fi
else
# BSD style nm
# We now accept either text or data symbols, since the RT/PC uses data.
SET_NAMESTRING();
if ((namestring[0] == '-' && namestring[1] == 'l')
|| (namestring [(nsl = strlen (namestring)) - 1] == 'o'
- && namestring [nsl - 2] == '.'))
+ && namestring [nsl - 2] == '.')
+#ifdef hp9000s800
+ /* some cooperation from gcc to get around ld stupidity */
+ || (namestring[0] == 'e' && !strcmp (namestring, "end_file."))
+#endif
+ )
{
+#ifndef hp9000s800
if (objfile -> ei.entry_point < CUR_SYMBOL_VALUE &&
objfile -> ei.entry_point >= last_o_file_start &&
addr == 0) /* FIXME nogood nomore */
objfile -> ei.entry_file_lowpc = last_o_file_start;
objfile -> ei.entry_file_highpc = CUR_SYMBOL_VALUE;
}
+#endif
if (past_first_source_file && pst
/* The gould NP1 uses low values for .o and -l symbols
which are not the address. */
--- /dev/null
+/* Parameters for execution on a Hewlett-Packard PA-RISC machine, running
+ HPUX or BSD.
+ Copyright (C) 1986, 1987, 1989, 1990, 1991 Free Software Foundation, Inc.
+
+ Contributed by the Center for Software Science at the
+ University of Utah (pa-gdb-bugs@cs.utah.edu).
+
+This file is part of GDB.
+
+GDB is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 1, or (at your option)
+any later version.
+
+GDB is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GDB; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+
+/* Get at various relevent fields of an instruction word. */
+
+#define MASK_5 0x1f
+#define MASK_11 0x7ff
+#define MASK_14 0x3fff
+#define MASK_21 0x1fffff
+
+/* This macro gets bit fields using HP's numbering (MSB = 0) */
+
+#define GET_FIELD(X, FROM, TO) \
+ ((X) >> 31 - (TO) & (1 << ((TO) - (FROM) + 1)) - 1)
+
+/* Watch out for NaNs */
+
+#define IEEE_FLOAT
+
+/* Groan */
+
+#define ARGS_GROW_DOWN
+
+/* Get rid of any system-imposed stack limit if possible. */
+
+
+
+/* Define this if the C compiler puts an underscore at the front
+ of external names before giving them to the linker. */
+
+/* #define NAMES_HAVE_UNDERSCORE */
+
+/* Debugger information will be in DBX format. */
+
+#define READ_DBX_FORMAT
+
+/* Offset from address of function to start of its code.
+ Zero on most machines. */
+
+#define FUNCTION_START_OFFSET 0
+
+/* Advance PC across any function entry prologue instructions
+ to reach some "real" code. */
+
+/* skip (stw rp, -20(0,sp)); copy 4,1; copy sp, 4; stwm 1,framesize(sp)
+ for gcc, or (stw rp, -20(0,sp); stwm 1, framesize(sp) for hcc */
+
+#define SKIP_PROLOGUE(pc) \
+{ if (read_memory_integer ((pc), 4) == 0x6BC23FD9) \
+ { if (read_memory_integer ((pc) + 4, 4) == 0x8040241) \
+ (pc) += 16; \
+ else if ((read_memory_integer (pc + 4, 4) & ~MASK_14) == 0x68810000) \
+ (pc) += 8;} \
+ else if (read_memory_integer ((pc), 4) == 0x8040241) \
+ (pc) += 12; \
+ else if ((read_memory_integer (pc, 4) & ~MASK_14) == 0x68810000) \
+ (pc) += 4;}
+
+/* Immediately after a function call, return the saved pc.
+ Can't go through the frames for this because on some machines
+ the new frame is not set up until the new function executes
+ some instructions. */
+
+#define SAVED_PC_AFTER_CALL(frame) (read_register (RP_REGNUM) & ~3)
+
+/* Address of end of stack space. Who knows. */
+
+#define STACK_END_ADDR 0x80000000
+
+/* Stack grows upward */
+
+#define INNER_THAN >
+
+
+/* Sequence of bytes for breakpoint instruction. */
+
+/*#define BREAKPOINT {0x00, 0x00, 0x00, 0x00}*/
+#ifdef KERNELDEBUG /* XXX */
+#define BREAKPOINT {0x00, 0x00, 0xa0, 0x00}
+#else
+#define BREAKPOINT {0x00, 0x01, 0x00, 0x04}
+#endif
+
+/* Amount PC must be decremented by after a breakpoint.
+ This is often the number of bytes in BREAKPOINT
+ but not always.
+
+ Not on the PA-RISC */
+
+#define DECR_PC_AFTER_BREAK 0
+
+/* return instruction is bv r0(rp) */
+
+#define ABOUT_TO_RETURN(pc) (read_memory_integer (pc, 4) == 0xE840C000)
+
+/* Return 1 if P points to an invalid floating point value. */
+
+#define INVALID_FLOAT(p, len) 0 /* Just a first guess; not checked */
+
+/* Largest integer type */
+#define LONGEST long
+
+/* Name of the builtin type for the LONGEST type above. */
+#define BUILTIN_TYPE_LONGEST builtin_type_long
+
+/* Say how long (ordinary) registers are. */
+
+#define REGISTER_TYPE long
+
+/* Number of machine registers */
+
+#define NUM_REGS 100
+
+/* Initializer for an array of names of registers.
+ There should be NUM_REGS strings in this initializer. */
+
+#define REGISTER_NAMES \
+ {"flags", "r1", "rp", "r3", "r4", "r5", "r6", "r7", "r8", "r9", \
+ "r10", "r11", "r12", "r13", "r14", "r15", "r16", "r17", "r18", "r19", \
+ "r20", "r21", "r22", "arg3", "arg2", "arg1", "arg0", "dp", "ret0", "ret1", \
+ "sp", "r31", "sar", "pcoqh", "pcsqh", "pcoqt", "pcsqt", \
+ "eiem", "iir", "isr", "ior", "ipsw", "goto", "sr4", "sr0", "sr1", "sr2", \
+ "sr3", "sr5", "sr6", "sr7", "cr0", "cr8", "cr9", "ccr", "cr12", "cr13", \
+ "cr24", "cr25", "cr26", "mpsfu_high", "mpsfu_low", "mpsfu_ovflo", "pad", \
+ "fpsr", "fpe1", "fpe2", "fpe3", "fpe4", "fpe5", "fpe6", "fpe7", \
+ "fp4", "fp5", "fp6", "fp7", "fp8", \
+ "fp9", "fp10", "fp11", "fp12", "fp13", "fp14", "fp15", \
+ "fp16", "fp17", "fp18", "fp19", "fp20", "fp21", "fp22", "fp23", \
+ "fp24", "fp25", "fp26", "fp27", "fp28", "fp29", "fp30", "fp31"}
+
+/* Register numbers of various important registers.
+ Note that some of these values are "real" register numbers,
+ and correspond to the general registers of the machine,
+ and some are "phony" register numbers which are too large
+ to be actual register numbers as far as the user is concerned
+ but do serve to get the desired values when passed to read_register. */
+
+#define RP_REGNUM 2 /* return pointer */
+#define FP_REGNUM 4 /* Contains address of executing stack */
+ /* frame */
+#define SP_REGNUM 30 /* Contains address of top of stack */
+#define SAR_REGNUM 32 /* shift amount register */
+#define IPSW_REGNUM 41 /* processor status word. ? */
+#define PCOQ_HEAD_REGNUM 33 /* instruction offset queue head */
+#define PCSQ_HEAD_REGNUM 34 /* instruction space queue head */
+#define PCOQ_TAIL_REGNUM 35 /* instruction offset queue tail */
+#define PCSQ_TAIL_REGNUM 36 /* instruction space queue tail */
+#define FP0_REGNUM 64 /* floating point reg. 0 */
+#define FP4_REGNUM 72
+
+/* compatibility with the rest of gdb. */
+#define PC_REGNUM PCOQ_HEAD_REGNUM
+#define NPC_REGNUM PCOQ_TAIL_REGNUM
+
+/* Define DO_REGISTERS_INFO() to do machine-specific formatting
+ of register dumps. */
+
+#define DO_REGISTERS_INFO(_regnum, fp) pa_do_registers_info (_regnum, fp)
+
+/* PA specific macro to see if the current instruction is nullified. */
+#define INSTRUCTION_NULLIFIED ((int)read_register (IPSW_REGNUM) & 0x00200000)
+
+/* Total amount of space needed to store our copies of the machine's
+ register state, the array `registers'. */
+#define REGISTER_BYTES (32 * 4 + 11 * 4 + 8 * 4 + 12 * 4 + 4 + 32 * 8)
+
+/* Index within `registers' of the first byte of the space for
+ register N. */
+
+#define REGISTER_BYTE(N) \
+ ((N) >= FP4_REGNUM ? ((N) - FP4_REGNUM) * 8 + 288 : (N) * 4)
+
+/* Number of bytes of storage in the actual machine representation
+ for register N. On the PA-RISC, all regs are 4 bytes
+ except the floating point regs which are 8 bytes. */
+
+#define REGISTER_RAW_SIZE(N) ((N) < FP4_REGNUM ? 4 : 8)
+
+/* Number of bytes of storage in the program's representation
+ for register N. */
+
+#define REGISTER_VIRTUAL_SIZE(N) REGISTER_RAW_SIZE(N)
+
+/* Largest value REGISTER_RAW_SIZE can have. */
+
+#define MAX_REGISTER_RAW_SIZE 8
+
+/* Largest value REGISTER_VIRTUAL_SIZE can have. */
+
+#define MAX_REGISTER_VIRTUAL_SIZE 8
+
+/* Nonzero if register N requires conversion
+ from raw format to virtual format. */
+
+#define REGISTER_CONVERTIBLE(N) 0
+
+/* Convert data from raw format for register REGNUM
+ to virtual format for register REGNUM. */
+
+#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO) \
+{ bcopy ((FROM), (TO), (REGNUM) < FP4_REGNUM ? 4 : 8); }
+
+/* Convert data from virtual format for register REGNUM
+ to raw format for register REGNUM. */
+
+#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO) \
+{ bcopy ((FROM), (TO), (REGNUM) < FP4_REGNUM ? 4 : 8); }
+
+/* Return the GDB type object for the "standard" data type
+ of data in register N. */
+
+#define REGISTER_VIRTUAL_TYPE(N) \
+ ((N) < FP4_REGNUM ? builtin_type_int : builtin_type_double)
+
+/* Store the address of the place in which to copy the structure the
+ subroutine will return. This is called from call_function. */
+
+#define STORE_STRUCT_RETURN(ADDR, SP) {write_register (28, (ADDR)); }
+
+/* Extract from an array REGBUF containing the (raw) register state
+ a function return value of type TYPE, and copy that, in virtual format,
+ into VALBUF. */
+
+#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
+ bcopy ((REGBUF) + REGISTER_BYTE(TYPE_LENGTH(TYPE) > 4 ? \
+ FP4_REGNUM :28), VALBUF, TYPE_LENGTH (TYPE))
+
+/* Write into appropriate registers a function return value
+ of type TYPE, given in virtual format. */
+
+#define STORE_RETURN_VALUE(TYPE,VALBUF) \
+ write_register_bytes (TYPE_LENGTH(TYPE) > 4 ? FP4_REGNUM :28, \
+ VALBUF, TYPE_LENGTH (TYPE))
+
+/* Extract from an array REGBUF containing the (raw) register state
+ the address in which a function should return its structure value,
+ as a CORE_ADDR (or an expression that can be used as one). */
+
+#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) (*(int *)((REGBUF) + 28))
+
+/* This is a piece of magic that is given a register number REGNO
+ and as BLOCKEND the address in the system of the end of the user structure
+ and stores in ADDR the address in the kernel or core dump
+ of that register. */
+
+
+/* Describe the pointer in each stack frame to the previous stack frame
+ (its caller). */
+
+/* FRAME_CHAIN takes a frame's nominal address
+ and produces the frame's chain-pointer.
+
+ FRAME_CHAIN_COMBINE takes the chain pointer and the frame's nominal address
+ and produces the nominal address of the caller frame.
+
+ However, if FRAME_CHAIN_VALID returns zero,
+ it means the given frame is the outermost one and has no caller.
+ In that case, FRAME_CHAIN_COMBINE is not used. */
+
+/* In the case of the PA-RISC, the frame's nominal address
+ is the address of a 4-byte word containing the calling frame's
+ address (previous FP). */
+
+#define FRAME_CHAIN(thisframe) \
+ (inside_entry_file ((thisframe)->pc) ? \
+ read_memory_integer ((thisframe)->frame, 4) :\
+ 0)
+
+#define FRAME_CHAIN_VALID(chain, thisframe) \
+ frame_chain_valid (chain, thisframe)
+
+#define FRAME_CHAIN_COMBINE(chain, thisframe) (chain)
+
+/* Define other aspects of the stack frame. */
+
+/* A macro that tells us whether the function invocation represented
+ by FI does not have a frame on the stack associated with it. If it
+ does not, FRAMELESS is set to 1, else 0. */
+#define FRAMELESS_FUNCTION_INVOCATION(FI, FRAMELESS) \
+ (FRAMELESS) = frameless_look_for_prologue(FI)
+
+#define FRAME_SAVED_PC(FRAME) frame_saved_pc (FRAME)
+
+#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
+
+#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
+/* Set VAL to the number of args passed to frame described by FI.
+ Can set VAL to -1, meaning no way to tell. */
+
+/* We can't tell how many args there are
+ now that the C compiler delays popping them. */
+#define FRAME_NUM_ARGS(val,fi) (val = -1)
+
+/* Return number of bytes at start of arglist that are not really args. */
+
+#define FRAME_ARGS_SKIP 0
+
+/* Put here the code to store, into a struct frame_saved_regs,
+ the addresses of the saved registers of frame described by FRAME_INFO.
+ This includes special registers such as pc and fp saved in special
+ ways in the stack frame. sp is even more special:
+ the address we return for it IS the sp for the next frame. */
+
+/* Deal with dummy functions later. */
+
+#define STW_P(INSN) (((INSN) & 0xfc000000) == 0x68000000)
+#define ADDIL_P(INSN) (((INSN) & 0xfc000000) == 0x28000000)
+#define LDO_P(INSN) (((INSN) & 0xfc00c000) == 0x34000000)
+
+
+#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
+{ register int regnum; \
+ register CORE_ADDR next_addr; \
+ register CORE_ADDR pc; \
+ unsigned this_insn; \
+ unsigned address; \
+ \
+ bzero (&frame_saved_regs, sizeof frame_saved_regs); \
+ if ((frame_info)->pc <= ((frame_info)->frame - CALL_DUMMY_LENGTH - \
+ FP_REGNUM * 4 - 16 * 8) \
+ && (frame_info)->pc > (frame_info)->frame) \
+ find_dummy_frame_regs ((frame_info), &(frame_saved_regs)); \
+ else \
+ { pc = get_pc_function_start ((frame_info)->pc); \
+ if (read_memory_integer (pc, 4) == 0x6BC23FD9) \
+ { (frame_saved_regs).regs[RP_REGNUM] = (frame_info)->frame - 20;\
+ pc = pc + 4; \
+ } \
+ if (read_memory_integer (pc, 4) != 0x8040241) goto lose; \
+ pc += 8; /* skip "copy 4,1; copy 30, 4" */ \
+ /* skip either "stw 1,0(4);addil L'fsize,30;ldo R'fsize(1),30" \
+ or "stwm 1,fsize(30)" */ \
+ if ((read_memory_integer (pc, 4) & ~MASK_14) == 0x68810000) \
+ pc += 12; \
+ else \
+ pc += 4; \
+ while (1) \
+ { this_insn = read_memory_integer(pc, 4); \
+ if (STW_P (this_insn)) /* stw */ \
+ { regnum = GET_FIELD (this_insn, 11, 15); \
+ if (!regnum) goto lose; \
+ (frame_saved_regs).regs[regnum] = (frame_info)->frame + \
+ extract_14 (this_insn); \
+ pc += 4; \
+ } \
+ else if (ADDIL_P (this_insn)) /* addil */ \
+ { int next_insn; \
+ next_insn = read_memory_integer(pc + 4, 4); \
+ if (STW_P (next_insn)) /* stw */ \
+ { regnum = GET_FIELD (this_insn, 6, 10); \
+ if (!regnum) goto lose; \
+ (frame_saved_regs).regs[regnum] = (frame_info)->frame +\
+ (extract_21 (this_insn) << 11) + extract_14 (next_insn);\
+ pc += 8; \
+ } \
+ else \
+ break; \
+ } \
+ else \
+ { pc += 4; \
+ break; \
+ } \
+ } \
+ this_insn = read_memory_integer (pc, 4); \
+ if (LDO_P (this_insn)) \
+ { next_addr = (frame_info)->frame + extract_14 (this_insn); \
+ pc += 4; \
+ } \
+ else if (ADDIL_P (this_insn)) \
+ { next_addr = (frame_info)->frame + (extract_21 (this_insn) << 11)\
+ + extract_14 (read_memory_integer (pc + 4, 4)); \
+ pc += 8; \
+ } \
+ while (1) \
+ { this_insn = read_memory_integer (pc, 4); \
+ if ((this_insn & 0xfc001fe0) == 0x2c001220) /* fstds,ma */ \
+ { regnum = GET_FIELD (this_insn, 27, 31); \
+ (frame_saved_regs).regs[regnum + FP0_REGNUM] = next_addr; \
+ next_addr += 8; \
+ } \
+ else \
+ break; \
+ } \
+ lose: \
+ (frame_saved_regs).regs[FP_REGNUM] = (frame_info)->frame; \
+ (frame_saved_regs).regs[SP_REGNUM] = (frame_info)->frame -4; \
+ }}
+\f
+/* Things needed for making the inferior call functions. */
+
+/* Push an empty stack frame, to record the current PC, etc. */
+
+#define PUSH_DUMMY_FRAME \
+{ register CORE_ADDR sp = read_register (SP_REGNUM); \
+ register int regnum; \
+ int int_buffer; \
+ double freg_buffer; \
+ /* Space for "arguments"; the RP goes in here. */ \
+ sp += 48; \
+ int_buffer = read_register (RP_REGNUM) | 0x3; \
+ write_memory (sp - 20, &int_buffer, 4); \
+ int_buffer = read_register (FP_REGNUM); \
+ write_memory (sp, &int_buffer, 4); \
+ write_register (FP_REGNUM, sp); \
+ sp += 4; \
+ for (regnum = 1; regnum < 31; regnum++) \
+ if (regnum != RP_REGNUM && regnum != FP_REGNUM) \
+ sp = push_word (sp, read_register (regnum)); \
+ for (regnum = FP0_REGNUM; regnum < NUM_REGS; regnum++) \
+ { read_register_bytes (REGISTER_BYTE (regnum), &freg_buffer, 8); \
+ sp = push_bytes (sp, &freg_buffer, 8);} \
+ sp = push_word (sp, read_register (IPSW_REGNUM)); \
+ sp = push_word (sp, read_register (SAR_REGNUM)); \
+ sp = push_word (sp, read_register (PCOQ_TAIL_REGNUM)); \
+ sp = push_word (sp, read_register (PCSQ_TAIL_REGNUM)); \
+ write_register (SP_REGNUM, sp);}
+
+/* Discard from the stack the innermost frame,
+ restoring all saved registers. */
+#define POP_FRAME \
+{ register FRAME frame = get_current_frame (); \
+ register CORE_ADDR fp; \
+ register int regnum; \
+ struct frame_saved_regs fsr; \
+ struct frame_info *fi; \
+ double freg_buffer; \
+ fi = get_frame_info (frame); \
+ fp = fi->frame; \
+ get_frame_saved_regs (fi, &fsr); \
+ for (regnum = 31; regnum > 0; regnum--) \
+ if (fsr.regs[regnum]) \
+ write_register (regnum, read_memory_integer (fsr.regs[regnum], 4)); \
+ for (regnum = NUM_REGS - 1; regnum >= FP0_REGNUM ; regnum--) \
+ if (fsr.regs[regnum]) \
+ { read_memory (fsr.regs[regnum], &freg_buffer, 8); \
+ write_register_bytes (REGISTER_BYTE (regnum), &freg_buffer, 8); }\
+ if (fsr.regs[IPSW_REGNUM]) \
+ write_register (IPSW_REGNUM, \
+ read_memory_integer (fsr.regs[IPSW_REGNUM], 4)); \
+ if (fsr.regs[SAR_REGNUM]) \
+ write_register (SAR_REGNUM, \
+ read_memory_integer (fsr.regs[SAR_REGNUM], 4)); \
+ if (fsr.regs[PCOQ_TAIL_REGNUM]) \
+ write_register (PCOQ_TAIL_REGNUM, \
+ read_memory_integer (fsr.regs[PCOQ_TAIL_REGNUM], 4));\
+ if (fsr.regs[PCSQ_TAIL_REGNUM]) \
+ write_register (PCSQ_TAIL_REGNUM, \
+ read_memory_integer (fsr.regs[PCSQ_TAIL_REGNUM], 4));\
+ write_register (FP_REGNUM, read_memory_integer (fp, 4)); \
+ write_register (SP_REGNUM, fp + 8); \
+ flush_cached_frames (); \
+ set_current_frame (create_new_frame (read_register (FP_REGNUM),\
+ read_pc ())); }
+
+/* This sequence of words is the instructions
+
+; Call stack frame has already been built by gdb. Since we could be calling
+; a varargs function, and we do not have the benefit of a stub to put things in
+; the right place, we load the first 4 word of arguments into both the general
+; and fp registers.
+call_dummy
+ ldw -36(sp), arg0
+ ldw -40(sp), arg1
+ ldw -44(sp), arg2
+ ldw -48(sp), arg3
+ ldo -36(sp), r1
+ fldws 0(0, r1), fr4
+ fldds -4(0, r1), fr5
+ fldws -8(0, r1), fr6
+ fldds -12(0, r1), fr7
+ ldil 0, r22 ; target will be placed here.
+ ldo 0(r22), r22
+ ldsid (0,r22), r3
+ ldil 0, r1 ; _sr4export will be placed here.
+ ldo 0(r1), r1
+ ldsid (0,r1), r4
+ combt,=,n r3, r4, text_space ; If target is in data space, do a
+ ble 0(sr5, r22) ; "normal" procedure call
+ copy r31, r2
+ break 4, 8
+text_space ; Otherwise, go through _sr4export,
+ ble (sr4, r1) ; which will return back here.
+ stw 31,-24(r30)
+ break 4, 8
+
+ The dummy decides if the target is in text space or data space. If
+ it's in data space, there's no problem because the target can
+ return back to the dummy. However, if the target is in text space,
+ the dummy calls the secret, undocumented routine _sr4export, which
+ calls a function in text space and can return to any space. Instead
+ of including fake instructions to represent saved registers, we
+ know that the frame is associated with the call dummy and treat it
+ specially. */
+
+#define CALL_DUMMY { 0x4bda3fb9, 0x4bd93fb1, 0x4bd83fa9, 0x4bd73fa1, \
+ 0x37c13fb9, 0x24201004, 0x2c391005, 0x24311006, \
+ 0x2c291007, 0x22c00000, 0x36d60000, 0x02c010a3, \
+ 0x20200000, 0x34210000, 0x002010a4, 0x80832012, \
+ 0xe6c06000, 0x081f0242, 0x00010004, 0xe4202000, \
+ 0x6bdf3fd1, 0x00010004}
+
+#define CALL_DUMMY_LENGTH 88
+#define CALL_DUMMY_START_OFFSET 0
+/* Insert the specified number of args and function address
+ into a call sequence of the above form stored at DUMMYNAME. */
+#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
+{ static CORE_ADDR sr4export_address = 0; \
+ \
+ if (!sr4export_address) \
+ { \
+ struct minimal_symbol *msymbol; \
+ msymbol = lookup_minimal_symbol ("_sr4export", (struct objfile *) NULL);\
+ if (msymbol = NULL) \
+ error ("Can't find an address for _sr4export trampoline"); \
+ else \
+ sr4export_address = msymbol -> address; \
+ } \
+ dummyname[9] = deposit_21 (fun >> 11, dummyname[9]); \
+ dummyname[10] = deposit_14 (fun & MASK_11, dummyname[10]); \
+ dummyname[12] = deposit_21 (sr4export_address >> 11, dummyname[12]); \
+ dummyname[13] = deposit_14 (sr4export_address & MASK_11, dummyname[13]);\
+}
+
+/* Write the PC to a random value.
+ On PA-RISC, we need to be sure that the PC space queue is correct. */
+
+#define WRITE_PC(addr) \
+{ int space_reg, space = ((addr) >> 30); \
+ int space_val; \
+ if (space == 0) \
+ space_reg = 43; /* Space reg sr4 */ \
+ else if (space == 1) \
+ space_reg = 48; /* Space reg sr5*/ \
+ else \
+ error ("pc = %x is in illegal space.", addr); \
+ space_val = read_register (space_reg); \
+ write_register (PCOQ_HEAD_REGNUM, addr); \
+ write_register (PCSQ_HEAD_REGNUM, space_val); \
+ write_register (PCOQ_TAIL_REGNUM, addr); \
+ write_register (PCSQ_TAIL_REGNUM, space_val);}
+
+
+# ifndef SEEK_SET
+# define SEEK_SET 0 /* Set file pointer to "offset" */
+# define SEEK_CUR 1 /* Set file pointer to current plus "offset" */
+# define SEEK_END 2 /* Set file pointer to EOF plus "offset" */
+# endif /* SEEK_SET */
+
+
--- /dev/null
+/* Parameters for execution on a Hewlett-Packard PA-RISC machine, running
+ HPUX or BSD.
+ Copyright (C) 1986, 1987, 1989, 1990, 1991 Free Software Foundation, Inc.
+
+ Contributed by the Center for Software Science at the
+ University of Utah (pa-gdb-bugs@cs.utah.edu).
+
+This file is part of GDB.
+
+GDB is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 1, or (at your option)
+any later version.
+
+GDB is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GDB; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+
+/* Get at various relevent fields of an instruction word. */
+
+#define MASK_5 0x1f
+#define MASK_11 0x7ff
+#define MASK_14 0x3fff
+#define MASK_21 0x1fffff
+
+/* This macro gets bit fields using HP's numbering (MSB = 0) */
+
+#define GET_FIELD(X, FROM, TO) \
+ ((X) >> 31 - (TO) & (1 << ((TO) - (FROM) + 1)) - 1)
+
+/* Watch out for NaNs */
+
+#define IEEE_FLOAT
+
+/* Groan */
+
+#define ARGS_GROW_DOWN
+
+/* Get rid of any system-imposed stack limit if possible. */
+
+
+
+/* Define this if the C compiler puts an underscore at the front
+ of external names before giving them to the linker. */
+
+/* #define NAMES_HAVE_UNDERSCORE */
+
+/* Debugger information will be in DBX format. */
+
+#define READ_DBX_FORMAT
+
+/* Offset from address of function to start of its code.
+ Zero on most machines. */
+
+#define FUNCTION_START_OFFSET 0
+
+/* Advance PC across any function entry prologue instructions
+ to reach some "real" code. */
+
+/* skip (stw rp, -20(0,sp)); copy 4,1; copy sp, 4; stwm 1,framesize(sp)
+ for gcc, or (stw rp, -20(0,sp); stwm 1, framesize(sp) for hcc */
+
+#define SKIP_PROLOGUE(pc) \
+{ if (read_memory_integer ((pc), 4) == 0x6BC23FD9) \
+ { if (read_memory_integer ((pc) + 4, 4) == 0x8040241) \
+ (pc) += 16; \
+ else if ((read_memory_integer (pc + 4, 4) & ~MASK_14) == 0x68810000) \
+ (pc) += 8;} \
+ else if (read_memory_integer ((pc), 4) == 0x8040241) \
+ (pc) += 12; \
+ else if ((read_memory_integer (pc, 4) & ~MASK_14) == 0x68810000) \
+ (pc) += 4;}
+
+/* Immediately after a function call, return the saved pc.
+ Can't go through the frames for this because on some machines
+ the new frame is not set up until the new function executes
+ some instructions. */
+
+
+#define SAVED_PC_AFTER_CALL(frame) \
+ ((get_frame_pc (frame) >= millicode_start \
+ && get_frame_pc (frame) < millicode_end) ? \
+ read_register (31) & ~3 \
+ : read_register (RP_REGNUM) & ~3)
+
+/* Address of end of stack space. Who knows. */
+
+#define STACK_END_ADDR 0x80000000
+
+/* Stack grows upward */
+
+#define INNER_THAN >
+
+
+/* Sequence of bytes for breakpoint instruction. */
+
+/*#define BREAKPOINT {0x00, 0x00, 0x00, 0x00}*/
+#ifdef KERNELDEBUG /* XXX */
+#define BREAKPOINT {0x00, 0x00, 0xa0, 0x00}
+#else
+#define BREAKPOINT {0x00, 0x01, 0x00, 0x04}
+#endif
+
+/* Amount PC must be decremented by after a breakpoint.
+ This is often the number of bytes in BREAKPOINT
+ but not always.
+
+ Not on the PA-RISC */
+
+#define DECR_PC_AFTER_BREAK 0
+
+/* return instruction is bv r0(rp) */
+
+#define ABOUT_TO_RETURN(pc) (read_memory_integer (pc, 4) == 0xE840C000)
+
+/* Return 1 if P points to an invalid floating point value. */
+
+#define INVALID_FLOAT(p, len) 0 /* Just a first guess; not checked */
+
+/* Largest integer type */
+#define LONGEST long
+
+/* Name of the builtin type for the LONGEST type above. */
+#define BUILTIN_TYPE_LONGEST builtin_type_long
+
+/* Say how long (ordinary) registers are. */
+
+#define REGISTER_TYPE long
+
+/* Number of machine registers */
+
+#define NUM_REGS 100
+
+/* Initializer for an array of names of registers.
+ There should be NUM_REGS strings in this initializer. */
+
+#define REGISTER_NAMES \
+ {"flags", "r1", "rp", "r3", "r4", "r5", "r6", "r7", "r8", "r9", \
+ "r10", "r11", "r12", "r13", "r14", "r15", "r16", "r17", "r18", "r19", \
+ "r20", "r21", "r22", "arg3", "arg2", "arg1", "arg0", "dp", "ret0", "ret1", \
+ "sp", "r31", "sar", "pcoqh", "pcsqh", "pcoqt", "pcsqt", \
+ "eiem", "iir", "isr", "ior", "ipsw", "goto", "sr4", "sr0", "sr1", "sr2", \
+ "sr3", "sr5", "sr6", "sr7", "cr0", "cr8", "cr9", "ccr", "cr12", "cr13", \
+ "cr24", "cr25", "cr26", "mpsfu_high", "mpsfu_low", "mpsfu_ovflo", "pad", \
+ "fpsr", "fpe1", "fpe2", "fpe3", "fpe4", "fpe5", "fpe6", "fpe7", \
+ "fp4", "fp5", "fp6", "fp7", "fp8", \
+ "fp9", "fp10", "fp11", "fp12", "fp13", "fp14", "fp15", \
+ "fp16", "fp17", "fp18", "fp19", "fp20", "fp21", "fp22", "fp23", \
+ "fp24", "fp25", "fp26", "fp27", "fp28", "fp29", "fp30", "fp31"}
+
+
+
+/* Register numbers of various important registers.
+ Note that some of these values are "real" register numbers,
+ and correspond to the general registers of the machine,
+ and some are "phony" register numbers which are too large
+ to be actual register numbers as far as the user is concerned
+ but do serve to get the desired values when passed to read_register. */
+
+#define RP_REGNUM 2 /* return pointer */
+#define FP_REGNUM 4 /* Contains address of executing stack */
+ /* frame */
+#define SP_REGNUM 30 /* Contains address of top of stack */
+#define SAR_REGNUM 32 /* shift amount register */
+#define IPSW_REGNUM 41 /* processor status word. ? */
+#define PCOQ_HEAD_REGNUM 33 /* instruction offset queue head */
+#define PCSQ_HEAD_REGNUM 34 /* instruction space queue head */
+#define PCOQ_TAIL_REGNUM 35 /* instruction offset queue tail */
+#define PCSQ_TAIL_REGNUM 36 /* instruction space queue tail */
+#define FP0_REGNUM 64 /* floating point reg. 0 */
+#define FP4_REGNUM 72
+
+/* compatibility with the rest of gdb. */
+#define PC_REGNUM PCOQ_HEAD_REGNUM
+#define NPC_REGNUM PCOQ_TAIL_REGNUM
+
+/* Define DO_REGISTERS_INFO() to do machine-specific formatting
+ of register dumps. */
+
+#define DO_REGISTERS_INFO(_regnum, fp) pa_do_registers_info (_regnum, fp)
+
+/* PA specific macro to see if the current instruction is nullified. */
+#define INSTRUCTION_NULLIFIED ((int)read_register (IPSW_REGNUM) & 0x00200000)
+
+/* Total amount of space needed to store our copies of the machine's
+ register state, the array `registers'. */
+#define REGISTER_BYTES (32 * 4 + 11 * 4 + 8 * 4 + 12 * 4 + 4 + 32 * 8)
+
+/* Index within `registers' of the first byte of the space for
+ register N. */
+
+#define REGISTER_BYTE(N) \
+ ((N) >= FP4_REGNUM ? ((N) - FP4_REGNUM) * 8 + 288 : (N) * 4)
+
+/* Number of bytes of storage in the actual machine representation
+ for register N. On the PA-RISC, all regs are 4 bytes
+ except the floating point regs which are 8 bytes. */
+
+#define REGISTER_RAW_SIZE(N) ((N) < FP4_REGNUM ? 4 : 8)
+
+/* Number of bytes of storage in the program's representation
+ for register N. */
+
+#define REGISTER_VIRTUAL_SIZE(N) REGISTER_RAW_SIZE(N)
+
+/* Largest value REGISTER_RAW_SIZE can have. */
+
+#define MAX_REGISTER_RAW_SIZE 8
+
+/* Largest value REGISTER_VIRTUAL_SIZE can have. */
+
+#define MAX_REGISTER_VIRTUAL_SIZE 8
+
+/* Nonzero if register N requires conversion
+ from raw format to virtual format. */
+
+#define REGISTER_CONVERTIBLE(N) 0
+
+/* Convert data from raw format for register REGNUM
+ to virtual format for register REGNUM. */
+
+#define REGISTER_CONVERT_TO_VIRTUAL(REGNUM,FROM,TO) \
+{ bcopy ((FROM), (TO), (REGNUM) < FP4_REGNUM ? 4 : 8); }
+
+/* Convert data from virtual format for register REGNUM
+ to raw format for register REGNUM. */
+
+#define REGISTER_CONVERT_TO_RAW(REGNUM,FROM,TO) \
+{ bcopy ((FROM), (TO), (REGNUM) < FP4_REGNUM ? 4 : 8); }
+
+/* Return the GDB type object for the "standard" data type
+ of data in register N. */
+
+#define REGISTER_VIRTUAL_TYPE(N) \
+ ((N) < FP4_REGNUM ? builtin_type_int : builtin_type_double)
+
+/* Store the address of the place in which to copy the structure the
+ subroutine will return. This is called from call_function. */
+
+#define STORE_STRUCT_RETURN(ADDR, SP) {write_register (28, (ADDR)); }
+
+/* Extract from an array REGBUF containing the (raw) register state
+ a function return value of type TYPE, and copy that, in virtual format,
+ into VALBUF. */
+
+#define EXTRACT_RETURN_VALUE(TYPE,REGBUF,VALBUF) \
+ bcopy ((REGBUF) + REGISTER_BYTE(TYPE_LENGTH(TYPE) > 4 ? \
+ FP4_REGNUM :28), VALBUF, TYPE_LENGTH (TYPE))
+
+/* Write into appropriate registers a function return value
+ of type TYPE, given in virtual format. */
+
+#define STORE_RETURN_VALUE(TYPE,VALBUF) \
+ write_register_bytes (TYPE_LENGTH(TYPE) > 4 ? FP4_REGNUM :28, \
+ VALBUF, TYPE_LENGTH (TYPE))
+
+/* Extract from an array REGBUF containing the (raw) register state
+ the address in which a function should return its structure value,
+ as a CORE_ADDR (or an expression that can be used as one). */
+
+#define EXTRACT_STRUCT_VALUE_ADDRESS(REGBUF) (*(int *)((REGBUF) + 28))
+
+/* This is a piece of magic that is given a register number REGNO
+ and as BLOCKEND the address in the system of the end of the user structure
+ and stores in ADDR the address in the kernel or core dump
+ of that register. */
+
+
+/* Describe the pointer in each stack frame to the previous stack frame
+ (its caller). */
+
+/* FRAME_CHAIN takes a frame's nominal address
+ and produces the frame's chain-pointer.
+
+ FRAME_CHAIN_COMBINE takes the chain pointer and the frame's nominal address
+ and produces the nominal address of the caller frame.
+
+ However, if FRAME_CHAIN_VALID returns zero,
+ it means the given frame is the outermost one and has no caller.
+ In that case, FRAME_CHAIN_COMBINE is not used. */
+
+/* In the case of the PA-RISC, the frame's nominal address
+ is the address of a 4-byte word containing the calling frame's
+ address (previous FP). */
+
+#define FRAME_CHAIN(thisframe) \
+ (inside_entry_file ((thisframe)->pc) ? \
+ read_memory_integer ((thisframe)->frame, 4) :\
+ 0)
+
+#define FRAME_CHAIN_VALID(chain, thisframe) \
+ frame_chain_valid (chain, thisframe)
+
+#define FRAME_CHAIN_COMBINE(chain, thisframe) (chain)
+
+/* Define other aspects of the stack frame. */
+
+/* A macro that tells us whether the function invocation represented
+ by FI does not have a frame on the stack associated with it. If it
+ does not, FRAMELESS is set to 1, else 0. */
+#define FRAMELESS_FUNCTION_INVOCATION(FI, FRAMELESS) \
+ (FRAMELESS) = frameless_look_for_prologue(FI)
+
+#define FRAME_SAVED_PC(FRAME) frame_saved_pc (FRAME)
+
+#define FRAME_ARGS_ADDRESS(fi) ((fi)->frame)
+
+#define FRAME_LOCALS_ADDRESS(fi) ((fi)->frame)
+/* Set VAL to the number of args passed to frame described by FI.
+ Can set VAL to -1, meaning no way to tell. */
+
+/* We can't tell how many args there are
+ now that the C compiler delays popping them. */
+#define FRAME_NUM_ARGS(val,fi) (val = -1)
+
+/* Return number of bytes at start of arglist that are not really args. */
+
+#define FRAME_ARGS_SKIP 0
+
+/* Put here the code to store, into a struct frame_saved_regs,
+ the addresses of the saved registers of frame described by FRAME_INFO.
+ This includes special registers such as pc and fp saved in special
+ ways in the stack frame. sp is even more special:
+ the address we return for it IS the sp for the next frame. */
+
+/* Deal with dummy functions later. */
+
+#define STW_P(INSN) (((INSN) & 0xfc000000) == 0x68000000)
+#define ADDIL_P(INSN) (((INSN) & 0xfc000000) == 0x28000000)
+#define LDO_P(INSN) (((INSN) & 0xfc00c000) == 0x34000000)
+
+int millicode_start, millicode_end;
+
+#define FRAME_FIND_SAVED_REGS(frame_info, frame_saved_regs) \
+{ register int regnum; \
+ register CORE_ADDR next_addr; \
+ register CORE_ADDR pc; \
+ unsigned this_insn; \
+ unsigned address; \
+ \
+ bzero (&frame_saved_regs, sizeof frame_saved_regs); \
+ if ((frame_info)->pc <= ((frame_info)->frame - CALL_DUMMY_LENGTH - \
+ FP_REGNUM * 4 - 16 * 8) \
+ && (frame_info)->pc > (frame_info)->frame) \
+ find_dummy_frame_regs ((frame_info), &(frame_saved_regs)); \
+ else \
+ { pc = get_pc_function_start ((frame_info)->pc); \
+ if (read_memory_integer (pc, 4) == 0x6BC23FD9) \
+ { (frame_saved_regs).regs[RP_REGNUM] = (frame_info)->frame - 20;\
+ pc = pc + 4; \
+ } \
+ if (read_memory_integer (pc, 4) != 0x8040241) goto lose; \
+ pc += 8; /* skip "copy 4,1; copy 30, 4" */ \
+ /* skip either "stw 1,0(4);addil L'fsize,30;ldo R'fsize(1),30" \
+ or "stwm 1,fsize(30)" */ \
+ if ((read_memory_integer (pc, 4) & ~MASK_14) == 0x68810000) \
+ pc += 12; \
+ else \
+ pc += 4; \
+ while (1) \
+ { this_insn = read_memory_integer(pc, 4); \
+ if (STW_P (this_insn)) /* stw */ \
+ { regnum = GET_FIELD (this_insn, 11, 15); \
+ if (!regnum) goto lose; \
+ (frame_saved_regs).regs[regnum] = (frame_info)->frame + \
+ extract_14 (this_insn); \
+ pc += 4; \
+ } \
+ else if (ADDIL_P (this_insn)) /* addil */ \
+ { int next_insn; \
+ next_insn = read_memory_integer(pc + 4, 4); \
+ if (STW_P (next_insn)) /* stw */ \
+ { regnum = GET_FIELD (this_insn, 6, 10); \
+ if (!regnum) goto lose; \
+ (frame_saved_regs).regs[regnum] = (frame_info)->frame +\
+ (extract_21 (this_insn) << 11) + extract_14 (next_insn);\
+ pc += 8; \
+ } \
+ else \
+ break; \
+ } \
+ else \
+ { pc += 4; \
+ break; \
+ } \
+ } \
+ this_insn = read_memory_integer (pc, 4); \
+ if (LDO_P (this_insn)) \
+ { next_addr = (frame_info)->frame + extract_14 (this_insn); \
+ pc += 4; \
+ } \
+ else if (ADDIL_P (this_insn)) \
+ { next_addr = (frame_info)->frame + (extract_21 (this_insn) << 11)\
+ + extract_14 (read_memory_integer (pc + 4, 4)); \
+ pc += 8; \
+ } \
+ while (1) \
+ { this_insn = read_memory_integer (pc, 4); \
+ if ((this_insn & 0xfc001fe0) == 0x2c001220) /* fstds,ma */ \
+ { regnum = GET_FIELD (this_insn, 27, 31); \
+ (frame_saved_regs).regs[regnum + FP0_REGNUM] = next_addr; \
+ next_addr += 8; \
+ } \
+ else \
+ break; \
+ } \
+ lose: \
+ (frame_saved_regs).regs[FP_REGNUM] = (frame_info)->frame; \
+ (frame_saved_regs).regs[SP_REGNUM] = (frame_info)->frame -4; \
+ }}
+\f
+/* Things needed for making the inferior call functions. */
+
+/* Push an empty stack frame, to record the current PC, etc. */
+
+#define PUSH_DUMMY_FRAME \
+{ register CORE_ADDR sp = read_register (SP_REGNUM); \
+ register int regnum; \
+ int int_buffer; \
+ double freg_buffer; \
+ /* Space for "arguments"; the RP goes in here. */ \
+ sp += 48; \
+ int_buffer = read_register (RP_REGNUM) | 0x3; \
+ write_memory (sp - 20, &int_buffer, 4); \
+ int_buffer = read_register (FP_REGNUM); \
+ write_memory (sp, &int_buffer, 4); \
+ write_register (FP_REGNUM, sp); \
+ sp += 4; \
+ for (regnum = 1; regnum < 31; regnum++) \
+ if (regnum != RP_REGNUM && regnum != FP_REGNUM) \
+ sp = push_word (sp, read_register (regnum)); \
+ for (regnum = FP0_REGNUM; regnum < NUM_REGS; regnum++) \
+ { read_register_bytes (REGISTER_BYTE (regnum), &freg_buffer, 8); \
+ sp = push_bytes (sp, &freg_buffer, 8);} \
+ sp = push_word (sp, read_register (IPSW_REGNUM)); \
+ sp = push_word (sp, read_register (SAR_REGNUM)); \
+ sp = push_word (sp, read_register (PCOQ_TAIL_REGNUM)); \
+ sp = push_word (sp, read_register (PCSQ_TAIL_REGNUM)); \
+ write_register (SP_REGNUM, sp);}
+
+/* Discard from the stack the innermost frame,
+ restoring all saved registers. */
+#define POP_FRAME \
+{ register FRAME frame = get_current_frame (); \
+ register CORE_ADDR fp; \
+ register int regnum; \
+ struct frame_saved_regs fsr; \
+ struct frame_info *fi; \
+ double freg_buffer; \
+ fi = get_frame_info (frame); \
+ fp = fi->frame; \
+ get_frame_saved_regs (fi, &fsr); \
+ for (regnum = 31; regnum > 0; regnum--) \
+ if (fsr.regs[regnum]) \
+ write_register (regnum, read_memory_integer (fsr.regs[regnum], 4)); \
+ for (regnum = NUM_REGS - 1; regnum >= FP0_REGNUM ; regnum--) \
+ if (fsr.regs[regnum]) \
+ { read_memory (fsr.regs[regnum], &freg_buffer, 8); \
+ write_register_bytes (REGISTER_BYTE (regnum), &freg_buffer, 8); }\
+ if (fsr.regs[IPSW_REGNUM]) \
+ write_register (IPSW_REGNUM, \
+ read_memory_integer (fsr.regs[IPSW_REGNUM], 4)); \
+ if (fsr.regs[SAR_REGNUM]) \
+ write_register (SAR_REGNUM, \
+ read_memory_integer (fsr.regs[SAR_REGNUM], 4)); \
+ if (fsr.regs[PCOQ_TAIL_REGNUM]) \
+ write_register (PCOQ_TAIL_REGNUM, \
+ read_memory_integer (fsr.regs[PCOQ_TAIL_REGNUM], 4));\
+ if (fsr.regs[PCSQ_TAIL_REGNUM]) \
+ write_register (PCSQ_TAIL_REGNUM, \
+ read_memory_integer (fsr.regs[PCSQ_TAIL_REGNUM], 4));\
+ write_register (FP_REGNUM, read_memory_integer (fp, 4)); \
+ write_register (SP_REGNUM, fp + 8); \
+ flush_cached_frames (); \
+ set_current_frame (create_new_frame (read_register (FP_REGNUM),\
+ read_pc ())); }
+
+/* This sequence of words is the instructions
+
+; Call stack frame has already been built by gdb. Since we could be calling
+; a varargs function, and we do not have the benefit of a stub to put things in
+; the right place, we load the first 4 word of arguments into both the general
+; and fp registers.
+call_dummy
+ ldw -36(sp), arg0
+ ldw -40(sp), arg1
+ ldw -44(sp), arg2
+ ldw -48(sp), arg3
+ ldo -36(sp), r1
+ fldws 0(0, r1), fr4
+ fldds -4(0, r1), fr5
+ fldws -8(0, r1), fr6
+ fldds -12(0, r1), fr7
+ ldil 0, r22 ; target will be placed here.
+ ldo 0(r22), r22
+ ldsid (0,r22), r3
+ ldil 0, r1 ; _sr4export will be placed here.
+ ldo 0(r1), r1
+ ldsid (0,r1), r4
+ combt,=,n r3, r4, text_space ; If target is in data space, do a
+ ble 0(sr5, r22) ; "normal" procedure call
+ copy r31, r2
+ break 4, 8
+text_space ; Otherwise, go through _sr4export,
+ ble (sr4, r1) ; which will return back here.
+ stw 31,-24(r30)
+ break 4, 8
+
+ The dummy decides if the target is in text space or data space. If
+ it's in data space, there's no problem because the target can
+ return back to the dummy. However, if the target is in text space,
+ the dummy calls the secret, undocumented routine _sr4export, which
+ calls a function in text space and can return to any space. Instead
+ of including fake instructions to represent saved registers, we
+ know that the frame is associated with the call dummy and treat it
+ specially. */
+
+#define CALL_DUMMY { 0x4bda3fb9, 0x4bd93fb1, 0x4bd83fa9, 0x4bd73fa1, \
+ 0x37c13fb9, 0x24201004, 0x2c391005, 0x24311006, \
+ 0x2c291007, 0x22c00000, 0x36d60000, 0x02c010a3, \
+ 0x20200000, 0x34210000, 0x002010a4, 0x80832012, \
+ 0xe6c06000, 0x081f0242, 0x00010004, 0xe4202000, \
+ 0x6bdf3fd1, 0x00010004}
+
+#define CALL_DUMMY_LENGTH 88
+#define CALL_DUMMY_START_OFFSET 0
+/* Insert the specified number of args and function address
+ into a call sequence of the above form stored at DUMMYNAME. */
+
+#define FIX_CALL_DUMMY(dummyname, pc, fun, nargs, args, type, gcc_p) \
+{ static CORE_ADDR sr4export_address = 0; \
+ \
+ if (!sr4export_address) \
+ { \
+ struct minimal_symbol *msymbol; \
+ msymbol = lookup_minimal_symbol ("_sr4export", (struct objfile *) NULL);\
+ if (msymbol = NULL) \
+ error ("Can't find an address for _sr4export trampoline"); \
+ else \
+ sr4export_address = msymbol -> address; \
+ } \
+ dummyname[9] = deposit_21 (fun >> 11, dummyname[9]); \
+ dummyname[10] = deposit_14 (fun & MASK_11, dummyname[10]); \
+ dummyname[12] = deposit_21 (sr4export_address >> 11, dummyname[12]); \
+ dummyname[13] = deposit_14 (sr4export_address & MASK_11, dummyname[13]);\
+}
+
+/* Write the PC to a random value.
+ On PA-RISC, we need to be sure that the PC space queue is correct. */
+
+#define WRITE_PC(addr) \
+{ int space_reg, space = ((addr) >> 30); \
+ int space_val; \
+ if (space == 0) \
+ space_reg = 43; /* Space reg sr4 */ \
+ else if (space == 1) \
+ space_reg = 48; /* Space reg sr5*/ \
+ else \
+ error ("pc = %x is in illegal space.", addr); \
+ space_val = read_register (space_reg); \
+ write_register (PCOQ_HEAD_REGNUM, addr); \
+ write_register (PCSQ_HEAD_REGNUM, space_val); \
+ write_register (PCOQ_TAIL_REGNUM, addr); \
+ write_register (PCSQ_TAIL_REGNUM, space_val);}
+
+
+
+
+
+
--- /dev/null
+/* Parameters for execution on a Hewlett-Packard PA-RISC machine, running
+ HPUX or BSD.
+ Copyright (C) 1986, 1987, 1989, 1990, 1991 Free Software Foundation, Inc.
+
+ Contributed by the Center for Software Science at the
+ University of Utah (pa-gdb-bugs@cs.utah.edu).
+
+This file is part of GDB.
+
+GDB is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 1, or (at your option)
+any later version.
+
+GDB is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GDB; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/* Describe the endian nature of this machine. */
+#define BITS_BIG_ENDIAN 1
+#define BYTES_BIG_ENDIAN 1
+#define WORDS_BIG_ENDIAN 1
+
+/* Avoid "INT_MIN redefined" warnings -- by defining it here, exactly
+ the same as in the system <machine/machtypes.h> file. */
+#undef INT_MIN
+#define INT_MIN 0x80000000
+
+#ifndef hp800
+#define USG
+#endif
+
+
+#define PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \
+ sp = hp_push_arguments(nargs, args, sp, struct_return, struct_addr)
+
+#define KERNEL_U_ADDR 0
+
+/* What a coincidence! */
+#define REGISTER_U_ADDR(addr, blockend, regno) \
+{ addr = (int)(blockend) + REGISTER_BYTE (regno);}
+
+
+#define U_REGS_OFFSET 0
--- /dev/null
+/* Parameters for execution on a Hewlett-Packard PA-RISC machine, running
+ HPUX or BSD.
+ Copyright (C) 1986, 1987, 1989, 1990, 1991 Free Software Foundation, Inc.
+
+ Contributed by the Center for Software Science at the
+ University of Utah (pa-gdb-bugs@cs.utah.edu).
+
+This file is part of GDB.
+
+GDB is free software; you can redistribute it and/or modify
+it under the terms of the GNU General Public License as published by
+the Free Software Foundation; either version 1, or (at your option)
+any later version.
+
+GDB is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+GNU General Public License for more details.
+
+You should have received a copy of the GNU General Public License
+along with GDB; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/* Describe the endian nature of this machine. */
+#define BITS_BIG_ENDIAN 1
+#define BYTES_BIG_ENDIAN 1
+#define WORDS_BIG_ENDIAN 1
+
+/* Avoid "INT_MIN redefined" warnings -- by defining it here, exactly
+ the same as in the system <machine/machtypes.h> file. */
+#undef INT_MIN
+#define INT_MIN 0x80000000
+
+#ifndef hp800
+#define USG
+#endif
+
+#define HAVE_TERMIO
+
+#define PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr) \
+ sp = hp_push_arguments(nargs, args, sp, struct_return, struct_addr)
+
+#define KERNEL_U_ADDR 0
+
+/* What a coincidence! */
+#define REGISTER_U_ADDR(addr, blockend, regno) \
+{ addr = (int)(blockend) + REGISTER_BYTE (regno);}
+
+
+#define U_REGS_OFFSET 0
projects / external / binutils.git / commitdiff