/* IBM RS/6000 native-dependent code for GDB, the GNU debugger.
Copyright (C) 1986, 1987, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
- 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2007
+ 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2007, 2008, 2009
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
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
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., 51 Franklin Street, Fifth Floor,
- Boston, MA 02110-1301, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#include "defs.h"
#include "inferior.h"
#include "ppc-tdep.h"
#include "rs6000-tdep.h"
#include "exec.h"
-#include "gdb_stdint.h"
+#include "observer.h"
+#include "xcoffread.h"
#include <sys/ptrace.h>
#include <sys/reg.h>
#ifndef ARCH3264
# define ARCH64() 0
#else
-# define ARCH64() (register_size (current_gdbarch, 0) == 8)
+# define ARCH64() (register_size (target_gdbarch, 0) == 8)
#endif
/* Union of 32-bit and 64-bit versions of ld_info. */
static void vmap_symtab (struct vmap *);
-static void exec_one_dummy_insn (void);
+static void exec_one_dummy_insn (struct regcache *);
extern void fixup_breakpoints (CORE_ADDR low, CORE_ADDR high, CORE_ADDR delta);
ISFLOAT to indicate whether REGNO is a floating point register. */
static int
-regmap (int regno, int *isfloat)
+regmap (struct gdbarch *gdbarch, int regno, int *isfloat)
{
- struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
*isfloat = 0;
if (tdep->ppc_gp0_regnum <= regno
*isfloat = 1;
return regno - tdep->ppc_fp0_regnum + FPR0;
}
- else if (regno == PC_REGNUM)
+ else if (regno == gdbarch_pc_regnum (gdbarch))
return IAR;
else if (regno == tdep->ppc_ps_regnum)
return MSR;
static void
fetch_register (struct regcache *regcache, int regno)
{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
int addr[MAX_REGISTER_SIZE];
int nr, isfloat;
/* Retrieved values may be -1, so infer errors from errno. */
errno = 0;
- nr = regmap (regno, &isfloat);
+ nr = regmap (gdbarch, regno, &isfloat);
/* Floating-point registers. */
if (isfloat)
/* Bogus register number. */
else if (nr < 0)
{
- if (regno >= NUM_REGS)
+ if (regno >= gdbarch_num_regs (gdbarch))
fprintf_unfiltered (gdb_stderr,
"gdb error: register no %d not implemented.\n",
regno);
even if the register is really only 32 bits. */
long long buf;
rs6000_ptrace64 (PT_READ_GPR, PIDGET (inferior_ptid), nr, 0, &buf);
- if (register_size (current_gdbarch, regno) == 8)
+ if (register_size (gdbarch, regno) == 8)
memcpy (addr, &buf, 8);
else
*addr = buf;
/* Store register REGNO back into the inferior. */
static void
-store_register (const struct regcache *regcache, int regno)
+store_register (struct regcache *regcache, int regno)
{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
int addr[MAX_REGISTER_SIZE];
int nr, isfloat;
/* -1 can be a successful return value, so infer errors from errno. */
errno = 0;
- nr = regmap (regno, &isfloat);
+ nr = regmap (gdbarch, regno, &isfloat);
/* Floating-point registers. */
if (isfloat)
/* Bogus register number. */
else if (nr < 0)
{
- if (regno >= NUM_REGS)
+ if (regno >= gdbarch_num_regs (gdbarch))
fprintf_unfiltered (gdb_stderr,
"gdb error: register no %d not implemented.\n",
regno);
/* Fixed-point registers. */
else
{
- if (regno == SP_REGNUM)
+ if (regno == gdbarch_sp_regnum (gdbarch))
/* Execute one dummy instruction (which is a breakpoint) in inferior
process to give kernel a chance to do internal housekeeping.
Otherwise the following ptrace(2) calls will mess up user stack
since kernel will get confused about the bottom of the stack
(%sp). */
- exec_one_dummy_insn ();
+ exec_one_dummy_insn (regcache);
/* The PT_WRITE_GPR operation is rather odd. For 32-bit inferiors,
the register's value is passed by value, but for 64-bit inferiors,
/* PT_WRITE_GPR requires the buffer parameter to point to an 8-byte
area, even if the register is really only 32 bits. */
long long buf;
- if (register_size (current_gdbarch, regno) == 8)
+ if (register_size (gdbarch, regno) == 8)
memcpy (&buf, addr, 8);
else
buf = *addr;
REGNO otherwise. */
static void
-rs6000_fetch_inferior_registers (struct regcache *regcache, int regno)
+rs6000_fetch_inferior_registers (struct target_ops *ops,
+ struct regcache *regcache, int regno)
{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
if (regno != -1)
fetch_register (regcache, regno);
else
{
- struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
/* Read 32 general purpose registers. */
for (regno = tdep->ppc_gp0_regnum;
fetch_register (regcache, tdep->ppc_fp0_regnum + regno);
/* Read special registers. */
- fetch_register (regcache, PC_REGNUM);
+ fetch_register (regcache, gdbarch_pc_regnum (gdbarch));
fetch_register (regcache, tdep->ppc_ps_regnum);
fetch_register (regcache, tdep->ppc_cr_regnum);
fetch_register (regcache, tdep->ppc_lr_regnum);
Otherwise, REGNO specifies which register (so we can save time). */
static void
-rs6000_store_inferior_registers (struct regcache *regcache, int regno)
+rs6000_store_inferior_registers (struct target_ops *ops,
+ struct regcache *regcache, int regno)
{
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
if (regno != -1)
store_register (regcache, regno);
else
{
- struct gdbarch_tdep *tdep = gdbarch_tdep (current_gdbarch);
+ struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
/* Write general purpose registers first. */
for (regno = tdep->ppc_gp0_regnum;
store_register (regcache, tdep->ppc_fp0_regnum + regno);
/* Write special registers. */
- store_register (regcache, PC_REGNUM);
+ store_register (regcache, gdbarch_pc_regnum (gdbarch));
store_register (regcache, tdep->ppc_ps_regnum);
store_register (regcache, tdep->ppc_cr_regnum);
store_register (regcache, tdep->ppc_lr_regnum);
the status in *OURSTATUS. */
static ptid_t
-rs6000_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
+rs6000_wait (struct target_ops *ops,
+ ptid_t ptid, struct target_waitstatus *ourstatus, int options)
{
pid_t pid;
int status, save_errno;
do
{
set_sigint_trap ();
- set_sigio_trap ();
do
{
}
while (pid == -1 && errno == EINTR);
- clear_sigio_trap ();
clear_sigint_trap ();
if (pid == -1)
/* Claim it exited with unknown signal. */
ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
ourstatus->value.sig = TARGET_SIGNAL_UNKNOWN;
- return minus_one_ptid;
+ return inferior_ptid;
}
/* Ignore terminated detached child processes. */
including u_area. */
static void
-exec_one_dummy_insn (void)
+exec_one_dummy_insn (struct regcache *regcache)
{
-#define DUMMY_INSN_ADDR gdbarch_tdep (current_gdbarch)->text_segment_base+0x200
+#define DUMMY_INSN_ADDR AIX_TEXT_SEGMENT_BASE+0x200
+ struct gdbarch *gdbarch = get_regcache_arch (regcache);
int ret, status, pid;
CORE_ADDR prev_pc;
void *bp;
assume that this address will never be executed again by the real
code. */
- bp = deprecated_insert_raw_breakpoint (DUMMY_INSN_ADDR);
+ bp = deprecated_insert_raw_breakpoint (gdbarch, NULL, DUMMY_INSN_ADDR);
/* You might think this could be done with a single ptrace call, and
you'd be correct for just about every platform I've ever worked
on. However, rs6000-ibm-aix4.1.3 seems to have screwed this up --
the inferior never hits the breakpoint (it's also worth noting
powerpc-ibm-aix4.1.3 works correctly). */
- prev_pc = read_pc ();
- write_pc (DUMMY_INSN_ADDR);
+ prev_pc = regcache_read_pc (regcache);
+ regcache_write_pc (regcache, DUMMY_INSN_ADDR);
if (ARCH64 ())
ret = rs6000_ptrace64 (PT_CONTINUE, PIDGET (inferior_ptid), 1, 0, NULL);
else
}
while (pid != PIDGET (inferior_ptid));
- write_pc (prev_pc);
- deprecated_remove_raw_breakpoint (bp);
+ regcache_write_pc (regcache, prev_pc);
+ deprecated_remove_raw_breakpoint (gdbarch, bp);
}
\f
{
struct objfile *obj = (struct objfile *) arg;
- syms_from_objfile (obj, NULL, 0, 0, 0, 0);
- new_symfile_objfile (obj, 0, 0);
+ syms_from_objfile (obj, NULL, 0, 0, 0);
+ new_symfile_objfile (obj, 0);
return 1;
}
filename = LDI_FILENAME (ldi, arch64);
mem = filename + strlen (filename) + 1;
- mem = savestring (mem, strlen (mem));
- objname = savestring (filename, strlen (filename));
+ mem = xstrdup (mem);
+ objname = xstrdup (filename);
fd = LDI_FD (ldi, arch64);
if (fd < 0)
last = 0;
/* FIXME??? am I tossing BFDs? bfd? */
while ((last = bfd_openr_next_archived_file (abfd, last)))
- if (DEPRECATED_STREQ (mem, last->filename))
+ if (strcmp (mem, last->filename) == 0)
break;
if (!last)
/* The filenames are not always sufficient to match on. */
- if ((name[0] == '/' && !DEPRECATED_STREQ (name, vp->name))
- || (memb[0] && !DEPRECATED_STREQ (memb, vp->member)))
+ if ((name[0] == '/' && strcmp (name, vp->name) != 0)
+ || (memb[0] && strcmp (memb, vp->member) != 0))
continue;
/* See if we are referring to the same file.
/* Announce new object files. Doing this after symbol relocation
makes aix-thread.c's job easier. */
- if (deprecated_target_new_objfile_hook && vp->objfile)
- deprecated_target_new_objfile_hook (vp->objfile);
+ if (vp->objfile)
+ observer_notify_new_objfile (vp->objfile);
/* There may be more, so we don't break out of the loop. */
}
symbols to the proper address)."),
symfile_objfile->name);
free_objfile (symfile_objfile);
- symfile_objfile = NULL;
+ gdb_assert (symfile_objfile == NULL);
}
breakpoint_re_set ();
}
{
static bfd *execbfd;
int i;
+ struct target_section_table *table = target_get_section_table (&exec_ops);
if (execbfd == exec_bfd)
return;
execbfd = exec_bfd;
- if (!vmap || !exec_ops.to_sections)
- error (_("vmap_exec: vmap or exec_ops.to_sections == 0."));
+ if (!vmap || !table->sections)
+ error (_("vmap_exec: vmap or table->sections == 0."));
- for (i = 0; &exec_ops.to_sections[i] < exec_ops.to_sections_end; i++)
+ for (i = 0; &table->sections[i] < table->sections_end; i++)
{
- if (DEPRECATED_STREQ (".text", exec_ops.to_sections[i].the_bfd_section->name))
+ if (strcmp (".text", table->sections[i].the_bfd_section->name) == 0)
{
- exec_ops.to_sections[i].addr += vmap->tstart - vmap->tvma;
- exec_ops.to_sections[i].endaddr += vmap->tstart - vmap->tvma;
+ table->sections[i].addr += vmap->tstart - vmap->tvma;
+ table->sections[i].endaddr += vmap->tstart - vmap->tvma;
}
- else if (DEPRECATED_STREQ (".data", exec_ops.to_sections[i].the_bfd_section->name))
+ else if (strcmp (".data", table->sections[i].the_bfd_section->name) == 0)
{
- exec_ops.to_sections[i].addr += vmap->dstart - vmap->dvma;
- exec_ops.to_sections[i].endaddr += vmap->dstart - vmap->dvma;
+ table->sections[i].addr += vmap->dstart - vmap->dvma;
+ table->sections[i].endaddr += vmap->dstart - vmap->dvma;
}
- else if (DEPRECATED_STREQ (".bss", exec_ops.to_sections[i].the_bfd_section->name))
+ else if (strcmp (".bss", table->sections[i].the_bfd_section->name) == 0)
{
- exec_ops.to_sections[i].addr += vmap->dstart - vmap->dvma;
- exec_ops.to_sections[i].endaddr += vmap->dstart - vmap->dvma;
+ table->sections[i].addr += vmap->dstart - vmap->dvma;
+ table->sections[i].endaddr += vmap->dstart - vmap->dvma;
}
}
}
/* Set the current architecture from the host running GDB. Called when
starting a child process. */
-static void (*super_create_inferior) (char *exec_file, char *allargs,
- char **env, int from_tty);
+static void (*super_create_inferior) (struct target_ops *,char *exec_file,
+ char *allargs, char **env, int from_tty);
static void
-rs6000_create_inferior (char *exec_file, char *allargs, char **env, int from_tty)
+rs6000_create_inferior (struct target_ops * ops, char *exec_file,
+ char *allargs, char **env, int from_tty)
{
enum bfd_architecture arch;
unsigned long mach;
bfd abfd;
struct gdbarch_info info;
- super_create_inferior (exec_file, allargs, env, from_tty);
+ super_create_inferior (ops, exec_file, allargs, env, from_tty);
if (__power_rs ())
{
\f
/* xcoff_relocate_symtab - hook for symbol table relocation.
- also reads shared libraries. */
+
+ This is only applicable to live processes, and is a no-op when
+ debugging a core file. */
void
xcoff_relocate_symtab (unsigned int pid)
int ldisize = arch64 ? sizeof (ldi->l64) : sizeof (ldi->l32);
int size;
+ /* Nothing to do if we are debugging a core file. */
+ if (!target_has_execution)
+ return;
+
do
{
size = load_segs * ldisize;
add our sections to the section table for the core target. */
if (vp != vmap)
{
- struct section_table *stp;
+ struct target_section *stp;
- target_resize_to_sections (target, 2);
- stp = target->to_sections_end - 2;
+ stp = deprecated_core_resize_section_table (2);
stp->bfd = vp->bfd;
stp->the_bfd_section = bfd_get_section_by_name (stp->bfd, ".text");
vmap_symtab (vp);
- if (deprecated_target_new_objfile_hook && vp != vmap && vp->objfile)
- deprecated_target_new_objfile_hook (vp->objfile);
+ if (vp != vmap && vp->objfile)
+ observer_notify_new_objfile (vp->objfile);
}
while (LDI_NEXT (ldi, arch64) != 0);
vmap_exec ();
find_toc_address (CORE_ADDR pc)
{
struct vmap *vp;
- extern CORE_ADDR get_toc_offset (struct objfile *); /* xcoffread.c */
for (vp = vmap; vp; vp = vp->nxt)
{
if (pc >= vp->tstart && pc < vp->tend)
{
/* vp->objfile is only NULL for the exec file. */
- return vp->dstart + get_toc_offset (vp->objfile == NULL
- ? symfile_objfile
- : vp->objfile);
+ return vp->dstart + xcoff_get_toc_offset (vp->objfile == NULL
+ ? symfile_objfile
+ : vp->objfile);
}
}
error (_("Unable to find TOC entry for pc %s."), hex_string (pc));
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