--- /dev/null
+/* elfos.h -- operating system specific defines to be used when
+ targeting GCC for some generic ELF system
+ Copyright (C) 1991, 1994, 1995 Free Software Foundation, Inc.
+ Based on svr4.h contributed by Ron Guilmette (rfg@netcom.com).
+
+This file is part of GNU CC.
+
+GNU CC 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, or (at your option)
+any later version.
+
+GNU CC 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 GNU CC; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+/* For the sake of libgcc2.c, indicate target supports atexit. */
+#define HAVE_ATEXIT
+
+#undef ENDFILE_SPEC
+#define ENDFILE_SPEC "crtend.o%s"
+
+#undef STARTFILE_SPEC
+#define STARTFILE_SPEC "%{!shared: \
+ %{!symbolic: \
+ %{pg:gcrt0.o%s}%{!pg:%{p:mcrt0.o%s}%{!p:crt0.o%s}}}}\
+ crtbegin.o%s"
+
+/* Attach a special .ident directive to the end of the file to identify
+ the version of GCC which compiled this code. The format of the
+ .ident string is patterned after the ones produced by native svr4
+ C compilers. */
+
+#define IDENT_ASM_OP ".ident"
+
+#define ASM_FILE_END(FILE) \
+do { \
+ fprintf ((FILE), "\t%s\t\"GCC: (GNU) %s\"\n", \
+ IDENT_ASM_OP, version_string); \
+ } while (0)
+
+/* Output #ident as a .ident. */
+
+#define ASM_OUTPUT_IDENT(FILE, NAME) \
+ fprintf (FILE, "\t%s\t\"%s\"\n", IDENT_ASM_OP, NAME);
+
+/* Use periods rather than dollar signs in special g++ assembler names. */
+
+#define NO_DOLLAR_IN_LABEL
+
+/* Writing `int' for a bitfield forces int alignment for the structure. */
+
+#define PCC_BITFIELD_TYPE_MATTERS 1
+
+/* Implicit library calls should use memcpy, not bcopy, etc. */
+
+#define TARGET_MEM_FUNCTIONS
+
+/* Handle #pragma weak and #pragma pack. */
+
+#define HANDLE_SYSV_PRAGMA
+
+/* System V Release 4 uses DWARF debugging info. */
+
+#define DWARF_DEBUGGING_INFO
+
+/* All ELF targets can support DWARF-2. */
+
+#define DWARF2_DEBUGGING_INFO
+
+/* gas on SVR4 supports the use of .stabs. Permit -gstabs to be used
+ in general, although it will only work when using gas. */
+
+#define DBX_DEBUGGING_INFO
+
+/* The GNU tools operate better with stabs. Since we don't have
+ any native tools to be compatible with, default to stabs. */
+
+#ifndef PREFERRED_DEBUGGING_TYPE
+#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
+#endif
+
+/* Make LBRAC and RBRAC addresses relative to the start of the
+ function. The native Solaris stabs debugging format works this
+ way, gdb expects it, and it reduces the number of relocation
+ entries. */
+
+#define DBX_BLOCKS_FUNCTION_RELATIVE 1
+
+/* When using stabs, gcc2_compiled must be a stabs entry, not an
+ ordinary symbol, or gdb won't see it. Furthermore, since gdb reads
+ the input piecemeal, starting with each N_SO, it's a lot easier if
+ the gcc2 flag symbol is *after* the N_SO rather than before it. So
+ we emit an N_OPT stab there. */
+
+#define ASM_IDENTIFY_GCC(FILE) \
+do \
+ { \
+ if (write_symbols != DBX_DEBUG) \
+ fputs ("gcc2_compiled.:\n", FILE); \
+ } \
+while (0)
+
+#define ASM_IDENTIFY_GCC_AFTER_SOURCE(FILE) \
+do \
+ { \
+ if (write_symbols == DBX_DEBUG) \
+ fputs ("\t.stabs\t\"gcc2_compiled.\", 0x3c, 0, 0, 0\n", FILE); \
+ } \
+while (0)
+
+/* Like block addresses, stabs line numbers are relative to the
+ current function. */
+
+#undef ASM_OUTPUT_SOURCE_LINE
+#define ASM_OUTPUT_SOURCE_LINE(file, line) \
+do \
+ { \
+ static int sym_lineno = 1; \
+ fprintf (file, "\t.stabn 68,0,%d,.LM%d-", \
+ line, sym_lineno); \
+ assemble_name (file, XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \
+ fprintf (file, "\n.LM%d:\n", sym_lineno); \
+ sym_lineno += 1; \
+ } \
+while (0)
+
+/* In order for relative line numbers to work, we must output the
+ stabs entry for the function name first. */
+
+#define DBX_FUNCTION_FIRST
+
+#undef ASM_BYTE_OP
+#define ASM_BYTE_OP ".byte"
+
+#undef SET_ASM_OP
+#define SET_ASM_OP ".set"
+
+/* This is how to begin an assembly language file. Most svr4 assemblers want
+ at least a .file directive to come first, and some want to see a .version
+ directive come right after that. Here we just establish a default
+ which generates only the .file directive. If you need a .version
+ directive for any specific target, you should override this definition
+ in the target-specific file which includes this one. */
+
+#undef ASM_FILE_START
+#define ASM_FILE_START(FILE) \
+ output_file_directive ((FILE), main_input_filename)
+
+/* This is how to allocate empty space in some section. The .zero
+ pseudo-op is used for this on most svr4 assemblers. */
+
+#define SKIP_ASM_OP ".zero"
+
+#undef ASM_OUTPUT_SKIP
+#define ASM_OUTPUT_SKIP(FILE,SIZE) \
+ fprintf (FILE, "\t%s\t%u\n", SKIP_ASM_OP, (SIZE))
+
+/* This is how to output a reference to a user-level label named NAME.
+ `assemble_name' uses this.
+
+ For System V Release 4 the convention is *not* to prepend a leading
+ underscore onto user-level symbol names. */
+
+#undef ASM_OUTPUT_LABELREF
+#define ASM_OUTPUT_LABELREF(FILE,NAME) fprintf (FILE, "%s", NAME)
+
+/* This is how to output an internal numbered label where
+ PREFIX is the class of label and NUM is the number within the class.
+
+ For most svr4 systems, the convention is that any symbol which begins
+ with a period is not put into the linker symbol table by the assembler. */
+
+#undef ASM_OUTPUT_INTERNAL_LABEL
+#define ASM_OUTPUT_INTERNAL_LABEL(FILE, PREFIX, NUM) \
+do { \
+ fprintf (FILE, ".%s%d:\n", PREFIX, NUM); \
+} while (0)
+
+/* This is how to store into the string LABEL
+ the symbol_ref name of an internal numbered label where
+ PREFIX is the class of label and NUM is the number within the class.
+ This is suitable for output with `assemble_name'.
+
+ For most svr4 systems, the convention is that any symbol which begins
+ with a period is not put into the linker symbol table by the assembler. */
+
+#undef ASM_GENERATE_INTERNAL_LABEL
+#define ASM_GENERATE_INTERNAL_LABEL(LABEL, PREFIX, NUM) \
+do { \
+ sprintf (LABEL, "*.%s%d", PREFIX, NUM); \
+} while (0)
+
+/* Output the label which precedes a jumptable. Note that for all svr4
+ systems where we actually generate jumptables (which is to say every
+ svr4 target except i386, where we use casesi instead) we put the jump-
+ tables into the .rodata section and since other stuff could have been
+ put into the .rodata section prior to any given jumptable, we have to
+ make sure that the location counter for the .rodata section gets pro-
+ perly re-aligned prior to the actual beginning of the jump table. */
+
+#define ALIGN_ASM_OP ".align"
+
+#ifndef ASM_OUTPUT_BEFORE_CASE_LABEL
+#define ASM_OUTPUT_BEFORE_CASE_LABEL(FILE,PREFIX,NUM,TABLE) \
+ ASM_OUTPUT_ALIGN ((FILE), 2);
+#endif
+
+#undef ASM_OUTPUT_CASE_LABEL
+#define ASM_OUTPUT_CASE_LABEL(FILE,PREFIX,NUM,JUMPTABLE) \
+ do { \
+ ASM_OUTPUT_BEFORE_CASE_LABEL (FILE, PREFIX, NUM, JUMPTABLE) \
+ ASM_OUTPUT_INTERNAL_LABEL (FILE, PREFIX, NUM); \
+ } while (0)
+
+/* The standard SVR4 assembler seems to require that certain builtin
+ library routines (e.g. .udiv) be explicitly declared as .globl
+ in each assembly file where they are referenced. */
+
+#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
+ ASM_GLOBALIZE_LABEL (FILE, XSTR (FUN, 0))
+
+/* This says how to output assembler code to declare an
+ uninitialized external linkage data object. Under SVR4,
+ the linker seems to want the alignment of data objects
+ to depend on their types. We do exactly that here. */
+
+#define COMMON_ASM_OP ".comm"
+
+#undef ASM_OUTPUT_ALIGNED_COMMON
+#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \
+do { \
+ fprintf ((FILE), "\t%s\t", COMMON_ASM_OP); \
+ assemble_name ((FILE), (NAME)); \
+ fprintf ((FILE), ",%u,%u\n", (SIZE), (ALIGN) / BITS_PER_UNIT); \
+} while (0)
+
+/* This says how to output assembler code to declare an
+ uninitialized internal linkage data object. Under SVR4,
+ the linker seems to want the alignment of data objects
+ to depend on their types. We do exactly that here. */
+
+#define LOCAL_ASM_OP ".local"
+
+#undef ASM_OUTPUT_ALIGNED_LOCAL
+#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
+do { \
+ fprintf ((FILE), "\t%s\t", LOCAL_ASM_OP); \
+ assemble_name ((FILE), (NAME)); \
+ fprintf ((FILE), "\n"); \
+ ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \
+} while (0)
+
+/* This is the pseudo-op used to generate a 32-bit word of data with a
+ specific value in some section. This is the same for all known svr4
+ assemblers. */
+
+#define INT_ASM_OP ".long"
+
+/* This is the pseudo-op used to generate a contiguous sequence of byte
+ values from a double-quoted string WITHOUT HAVING A TERMINATING NUL
+ AUTOMATICALLY APPENDED. This is the same for most svr4 assemblers. */
+
+#undef ASCII_DATA_ASM_OP
+#define ASCII_DATA_ASM_OP ".ascii"
+
+/* Support const sections and the ctors and dtors sections for g++.
+ Note that there appears to be two different ways to support const
+ sections at the moment. You can either #define the symbol
+ READONLY_DATA_SECTION (giving it some code which switches to the
+ readonly data section) or else you can #define the symbols
+ EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS, SELECT_SECTION, and
+ SELECT_RTX_SECTION. We do both here just to be on the safe side. */
+
+#define USE_CONST_SECTION 1
+
+#define CONST_SECTION_ASM_OP ".section\t.rodata"
+
+/* Define the pseudo-ops used to switch to the .ctors and .dtors sections.
+
+ Note that we want to give these sections the SHF_WRITE attribute
+ because these sections will actually contain data (i.e. tables of
+ addresses of functions in the current root executable or shared library
+ file) and, in the case of a shared library, the relocatable addresses
+ will have to be properly resolved/relocated (and then written into) by
+ the dynamic linker when it actually attaches the given shared library
+ to the executing process. (Note that on SVR4, you may wish to use the
+ `-z text' option to the ELF linker, when building a shared library, as
+ an additional check that you are doing everything right. But if you do
+ use the `-z text' option when building a shared library, you will get
+ errors unless the .ctors and .dtors sections are marked as writable
+ via the SHF_WRITE attribute.) */
+
+#define CTORS_SECTION_ASM_OP ".section\t.ctors,\"aw\""
+#define DTORS_SECTION_ASM_OP ".section\t.dtors,\"aw\""
+
+/* On svr4, we *do* have support for the .init and .fini sections, and we
+ can put stuff in there to be executed before and after `main'. We let
+ crtstuff.c and other files know this by defining the following symbols.
+ The definitions say how to change sections to the .init and .fini
+ sections. This is the same for all known svr4 assemblers. */
+
+#define INIT_SECTION_ASM_OP ".section\t.init"
+#define FINI_SECTION_ASM_OP ".section\t.fini"
+
+/* A default list of other sections which we might be "in" at any given
+ time. For targets that use additional sections (e.g. .tdesc) you
+ should override this definition in the target-specific file which
+ includes this file. */
+
+#undef EXTRA_SECTIONS
+#define EXTRA_SECTIONS in_const, in_ctors, in_dtors
+
+/* A default list of extra section function definitions. For targets
+ that use additional sections (e.g. .tdesc) you should override this
+ definition in the target-specific file which includes this file. */
+
+#undef EXTRA_SECTION_FUNCTIONS
+#define EXTRA_SECTION_FUNCTIONS \
+ CONST_SECTION_FUNCTION \
+ CTORS_SECTION_FUNCTION \
+ DTORS_SECTION_FUNCTION
+
+#define READONLY_DATA_SECTION() const_section ()
+
+extern void text_section ();
+
+#define CONST_SECTION_FUNCTION \
+void \
+const_section () \
+{ \
+ if (!USE_CONST_SECTION) \
+ text_section(); \
+ else if (in_section != in_const) \
+ { \
+ fprintf (asm_out_file, "%s\n", CONST_SECTION_ASM_OP); \
+ in_section = in_const; \
+ } \
+}
+
+#define CTORS_SECTION_FUNCTION \
+void \
+ctors_section () \
+{ \
+ if (in_section != in_ctors) \
+ { \
+ fprintf (asm_out_file, "%s\n", CTORS_SECTION_ASM_OP); \
+ in_section = in_ctors; \
+ } \
+}
+
+#define DTORS_SECTION_FUNCTION \
+void \
+dtors_section () \
+{ \
+ if (in_section != in_dtors) \
+ { \
+ fprintf (asm_out_file, "%s\n", DTORS_SECTION_ASM_OP); \
+ in_section = in_dtors; \
+ } \
+}
+
+/* Switch into a generic section.
+ This is currently only used to support section attributes. */
+
+#define ASM_OUTPUT_SECTION_NAME(FILE, DECL, NAME, RELOC) \
+do { \
+ static struct section_info \
+ { \
+ struct section_info *next; \
+ char *name; \
+ enum sect_enum {SECT_RW, SECT_RO, SECT_EXEC} type; \
+ } *sections; \
+ struct section_info *s; \
+ char *mode; \
+ enum sect_enum type; \
+ \
+ for (s = sections; s; s = s->next) \
+ if (!strcmp (NAME, s->name)) \
+ break; \
+ \
+ if (DECL && TREE_CODE (DECL) == FUNCTION_DECL) \
+ type = SECT_EXEC, mode = "ax"; \
+ else if (DECL && DECL_READONLY_SECTION (DECL, RELOC)) \
+ type = SECT_RO, mode = "a"; \
+ else \
+ type = SECT_RW, mode = "aw"; \
+ \
+ if (s == 0) \
+ { \
+ s = (struct section_info *) xmalloc (sizeof (struct section_info)); \
+ s->name = xmalloc ((strlen (NAME) + 1) * sizeof (*NAME)); \
+ strcpy (s->name, NAME); \
+ s->type = type; \
+ s->next = sections; \
+ sections = s; \
+ fprintf (FILE, ".section\t%s,\"%s\",@progbits\n", NAME, mode); \
+ } \
+ else \
+ { \
+ if (DECL && s->type != type) \
+ error_with_decl (DECL, "%s causes a section type conflict"); \
+ \
+ fprintf (FILE, ".section\t%s\n", NAME); \
+ } \
+} while (0)
+
+#define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1)
+#define UNIQUE_SECTION_P(DECL) (DECL_ONE_ONLY (DECL))
+#define UNIQUE_SECTION(DECL,RELOC) \
+do { \
+ int len; \
+ char *name, *string, *prefix; \
+ \
+ name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (DECL)); \
+ \
+ if (! DECL_ONE_ONLY (DECL)) \
+ { \
+ if (TREE_CODE (DECL) == FUNCTION_DECL) \
+ prefix = ".text."; \
+ else if (DECL_READONLY_SECTION (DECL, RELOC)) \
+ prefix = ".rodata."; \
+ else \
+ prefix = ".data."; \
+ } \
+ else if (TREE_CODE (DECL) == FUNCTION_DECL) \
+ prefix = ".gnu.linkonce.t."; \
+ else if (DECL_READONLY_SECTION (DECL, RELOC)) \
+ prefix = ".gnu.linkonce.r."; \
+ else \
+ prefix = ".gnu.linkonce.d."; \
+ \
+ len = strlen (name) + strlen (prefix); \
+ string = alloca (len + 1); \
+ sprintf (string, "%s%s", prefix, name); \
+ \
+ DECL_SECTION_NAME (DECL) = build_string (len, string); \
+} while (0)
+/* A C statement (sans semicolon) to output an element in the table of
+ global constructors. */
+#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \
+ do { \
+ ctors_section (); \
+ fprintf (FILE, "\t%s\t ", INT_ASM_OP); \
+ assemble_name (FILE, NAME); \
+ fprintf (FILE, "\n"); \
+ } while (0)
+
+/* A C statement (sans semicolon) to output an element in the table of
+ global destructors. */
+#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \
+ do { \
+ dtors_section (); \
+ fprintf (FILE, "\t%s\t ", INT_ASM_OP); \
+ assemble_name (FILE, NAME); \
+ fprintf (FILE, "\n"); \
+ } while (0)
+
+/* A C statement or statements to switch to the appropriate
+ section for output of DECL. DECL is either a `VAR_DECL' node
+ or a constant of some sort. RELOC indicates whether forming
+ the initial value of DECL requires link-time relocations. */
+
+#define SELECT_SECTION(DECL,RELOC) \
+{ \
+ if (TREE_CODE (DECL) == STRING_CST) \
+ { \
+ if (! flag_writable_strings) \
+ const_section (); \
+ else \
+ data_section (); \
+ } \
+ else if (TREE_CODE (DECL) == VAR_DECL) \
+ { \
+ if ((flag_pic && RELOC) \
+ || !TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL) \
+ || !DECL_INITIAL (DECL) \
+ || (DECL_INITIAL (DECL) != error_mark_node \
+ && !TREE_CONSTANT (DECL_INITIAL (DECL)))) \
+ data_section (); \
+ else \
+ const_section (); \
+ } \
+ else \
+ const_section (); \
+}
+
+/* A C statement or statements to switch to the appropriate
+ section for output of RTX in mode MODE. RTX is some kind
+ of constant in RTL. The argument MODE is redundant except
+ in the case of a `const_int' rtx. Currently, these always
+ go into the const section. */
+
+#undef SELECT_RTX_SECTION
+#define SELECT_RTX_SECTION(MODE,RTX) const_section()
+
+/* Define the strings used for the special svr4 .type and .size directives.
+ These strings generally do not vary from one system running svr4 to
+ another, but if a given system (e.g. m88k running svr) needs to use
+ different pseudo-op names for these, they may be overridden in the
+ file which includes this one. */
+
+#define TYPE_ASM_OP ".type"
+#define SIZE_ASM_OP ".size"
+
+/* This is how we tell the assembler that a symbol is weak. */
+
+#define ASM_WEAKEN_LABEL(FILE,NAME) \
+ do { fputs ("\t.weak\t", FILE); assemble_name (FILE, NAME); \
+ fputc ('\n', FILE); } while (0)
+
+/* The following macro defines the format used to output the second
+ operand of the .type assembler directive. Different svr4 assemblers
+ expect various different forms for this operand. The one given here
+ is just a default. You may need to override it in your machine-
+ specific tm.h file (depending upon the particulars of your assembler). */
+
+#define TYPE_OPERAND_FMT "@%s"
+
+/* Write the extra assembler code needed to declare a function's result.
+ Most svr4 assemblers don't require any special declaration of the
+ result value, but there are exceptions. */
+
+#ifndef ASM_DECLARE_RESULT
+#define ASM_DECLARE_RESULT(FILE, RESULT)
+#endif
+
+/* These macros generate the special .type and .size directives which
+ are used to set the corresponding fields of the linker symbol table
+ entries in an ELF object file under SVR4. These macros also output
+ the starting labels for the relevant functions/objects. */
+
+/* Write the extra assembler code needed to declare a function properly.
+ Some svr4 assemblers need to also have something extra said about the
+ function's return value. We allow for that here. */
+
+#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
+ do { \
+ fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
+ assemble_name (FILE, NAME); \
+ putc (',', FILE); \
+ fprintf (FILE, TYPE_OPERAND_FMT, "function"); \
+ putc ('\n', FILE); \
+ ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \
+ ASM_OUTPUT_LABEL(FILE, NAME); \
+ } while (0)
+
+/* Write the extra assembler code needed to declare an object properly. */
+
+#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
+ do { \
+ fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \
+ assemble_name (FILE, NAME); \
+ putc (',', FILE); \
+ fprintf (FILE, TYPE_OPERAND_FMT, "object"); \
+ putc ('\n', FILE); \
+ size_directive_output = 0; \
+ if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \
+ { \
+ size_directive_output = 1; \
+ fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
+ assemble_name (FILE, NAME); \
+ fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \
+ } \
+ ASM_OUTPUT_LABEL(FILE, NAME); \
+ } while (0)
+
+/* Output the size directive for a decl in rest_of_decl_compilation
+ in the case where we did not do so before the initializer.
+ Once we find the error_mark_node, we know that the value of
+ size_directive_output was set
+ by ASM_DECLARE_OBJECT_NAME when it was run for the same decl. */
+
+#define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \
+do { \
+ char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
+ if (!flag_inhibit_size_directive && DECL_SIZE (DECL) \
+ && ! AT_END && TOP_LEVEL \
+ && DECL_INITIAL (DECL) == error_mark_node \
+ && !size_directive_output) \
+ { \
+ size_directive_output = 1; \
+ fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
+ assemble_name (FILE, name); \
+ fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \
+ } \
+ } while (0)
+
+/* This is how to declare the size of a function. */
+
+#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
+ do { \
+ if (!flag_inhibit_size_directive) \
+ { \
+ char label[256]; \
+ static int labelno; \
+ labelno++; \
+ ASM_GENERATE_INTERNAL_LABEL (label, "Lfe", labelno); \
+ ASM_OUTPUT_INTERNAL_LABEL (FILE, "Lfe", labelno); \
+ fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \
+ assemble_name (FILE, (FNAME)); \
+ fprintf (FILE, ","); \
+ assemble_name (FILE, label); \
+ fprintf (FILE, "-"); \
+ assemble_name (FILE, (FNAME)); \
+ putc ('\n', FILE); \
+ } \
+ } while (0)
+
+/* A table of bytes codes used by the ASM_OUTPUT_ASCII and
+ ASM_OUTPUT_LIMITED_STRING macros. Each byte in the table
+ corresponds to a particular byte value [0..255]. For any
+ given byte value, if the value in the corresponding table
+ position is zero, the given character can be output directly.
+ If the table value is 1, the byte must be output as a \ooo
+ octal escape. If the tables value is anything else, then the
+ byte value should be output as a \ followed by the value
+ in the table. Note that we can use standard UN*X escape
+ sequences for many control characters, but we don't use
+ \a to represent BEL because some svr4 assemblers (e.g. on
+ the i386) don't know about that. Also, we don't use \v
+ since some versions of gas, such as 2.2 did not accept it. */
+
+#define ESCAPES \
+"\1\1\1\1\1\1\1\1btn\1fr\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
+\0\0\"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
+\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\\\0\0\0\
+\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\
+\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
+\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
+\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
+\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1"
+
+/* Some svr4 assemblers have a limit on the number of characters which
+ can appear in the operand of a .string directive. If your assembler
+ has such a limitation, you should define STRING_LIMIT to reflect that
+ limit. Note that at least some svr4 assemblers have a limit on the
+ actual number of bytes in the double-quoted string, and that they
+ count each character in an escape sequence as one byte. Thus, an
+ escape sequence like \377 would count as four bytes.
+
+ If your target assembler doesn't support the .string directive, you
+ should define this to zero.
+*/
+
+#define STRING_LIMIT ((unsigned) 256)
+
+#define STRING_ASM_OP ".string"
+
+/* The routine used to output NUL terminated strings. We use a special
+ version of this for most svr4 targets because doing so makes the
+ generated assembly code more compact (and thus faster to assemble)
+ as well as more readable, especially for targets like the i386
+ (where the only alternative is to output character sequences as
+ comma separated lists of numbers). */
+
+#define ASM_OUTPUT_LIMITED_STRING(FILE, STR) \
+ do \
+ { \
+ register unsigned char *_limited_str = (unsigned char *) (STR); \
+ register unsigned ch; \
+ fprintf ((FILE), "\t%s\t\"", STRING_ASM_OP); \
+ for (; ch = *_limited_str; _limited_str++) \
+ { \
+ register int escape; \
+ switch (escape = ESCAPES[ch]) \
+ { \
+ case 0: \
+ putc (ch, (FILE)); \
+ break; \
+ case 1: \
+ fprintf ((FILE), "\\%03o", ch); \
+ break; \
+ default: \
+ putc ('\\', (FILE)); \
+ putc (escape, (FILE)); \
+ break; \
+ } \
+ } \
+ fprintf ((FILE), "\"\n"); \
+ } \
+ while (0)
+
+/* The routine used to output sequences of byte values. We use a special
+ version of this for most svr4 targets because doing so makes the
+ generated assembly code more compact (and thus faster to assemble)
+ as well as more readable. Note that if we find subparts of the
+ character sequence which end with NUL (and which are shorter than
+ STRING_LIMIT) we output those using ASM_OUTPUT_LIMITED_STRING. */
+
+#undef ASM_OUTPUT_ASCII
+#define ASM_OUTPUT_ASCII(FILE, STR, LENGTH) \
+ do \
+ { \
+ register unsigned char *_ascii_bytes = (unsigned char *) (STR); \
+ register unsigned char *limit = _ascii_bytes + (LENGTH); \
+ register unsigned bytes_in_chunk = 0; \
+ for (; _ascii_bytes < limit; _ascii_bytes++) \
+ { \
+ register unsigned char *p; \
+ if (bytes_in_chunk >= 60) \
+ { \
+ fprintf ((FILE), "\"\n"); \
+ bytes_in_chunk = 0; \
+ } \
+ for (p = _ascii_bytes; p < limit && *p != '\0'; p++) \
+ continue; \
+ if (p < limit && (p - _ascii_bytes) <= STRING_LIMIT) \
+ { \
+ if (bytes_in_chunk > 0) \
+ { \
+ fprintf ((FILE), "\"\n"); \
+ bytes_in_chunk = 0; \
+ } \
+ ASM_OUTPUT_LIMITED_STRING ((FILE), _ascii_bytes); \
+ _ascii_bytes = p; \
+ } \
+ else \
+ { \
+ register int escape; \
+ register unsigned ch; \
+ if (bytes_in_chunk == 0) \
+ fprintf ((FILE), "\t%s\t\"", ASCII_DATA_ASM_OP); \
+ switch (escape = ESCAPES[ch = *_ascii_bytes]) \
+ { \
+ case 0: \
+ putc (ch, (FILE)); \
+ bytes_in_chunk++; \
+ break; \
+ case 1: \
+ fprintf ((FILE), "\\%03o", ch); \
+ bytes_in_chunk += 4; \
+ break; \
+ default: \
+ putc ('\\', (FILE)); \
+ putc (escape, (FILE)); \
+ bytes_in_chunk += 2; \
+ break; \
+ } \
+ } \
+ } \
+ if (bytes_in_chunk > 0) \
+ fprintf ((FILE), "\"\n"); \
+ } \
+ while (0)
+
+/* All SVR4 targets use the ELF object file format. */
+#define OBJECT_FORMAT_ELF
--- /dev/null
+/* m68kelf support, derived from m68kv4.h */
+
+/* Target definitions for GNU compiler for mc680x0 running System V.4
+ Copyright (C) 1991, 1993 Free Software Foundation, Inc.
+
+ Written by Ron Guilmette (rfg@netcom.com) and Fred Fish (fnf@cygnus.com).
+
+This file is part of GNU CC.
+
+GNU CC 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, or (at your option)
+any later version.
+
+GNU CC 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 GNU CC; see the file COPYING. If not, write to
+the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/* #notinclude "m68k/sgs.h" /* The m68k/SVR4 assembler is SGS based */
+
+/* These are necessary for -fpic/-fPIC to work correctly. */
+#ifndef MOTOROLA
+#define MOTOROLA /* Use MOTOROLA syntax. */
+#endif
+#ifdef USE_GAS /* when present, forces jsbr instead of jsr. */
+#undef USE_GAS
+#endif
+
+#ifndef SWBEG_ASM_OP
+#define SWBEG_ASM_OP ".swbeg"
+#endif
+
+/* Here are four prefixes that are used by asm_fprintf to
+ facilitate customization for alternate assembler syntaxes.
+ Machines with no likelihood of an alternate syntax need not
+ define these and need not use asm_fprintf. */
+
+/* The prefix for register names. Note that REGISTER_NAMES
+ is supposed to include this prefix. Also note that this is NOT an
+ fprintf format string, it is a literal string */
+
+#undef REGISTER_PREFIX
+#define REGISTER_PREFIX "%"
+
+/* The prefix for local (compiler generated) labels.
+ These labels will not appear in the symbol table. */
+
+#undef LOCAL_LABEL_PREFIX
+#define LOCAL_LABEL_PREFIX "."
+
+/* The prefix to add to user-visible assembler symbols. */
+
+#undef USER_LABEL_PREFIX
+#define USER_LABEL_PREFIX ""
+
+/* The prefix for immediate operands. */
+
+#undef IMMEDIATE_PREFIX
+#define IMMEDIATE_PREFIX "#"
+
+/* In the machine description we can't use %R, because it will not be seen
+ by ASM_FPRINTF. (Isn't that a design bug?). */
+
+#undef REGISTER_PREFIX_MD
+#define REGISTER_PREFIX_MD "%%"
+
+/* config/m68k.md has an explicit reference to the program counter,
+ prefix this by the register prefix. */
+
+#define ASM_RETURN_CASE_JUMP return "jmp %%pc@(2,%0:w)"
+
+/* How to refer to registers in assembler output.
+ This sequence is indexed by compiler's hard-register-number.
+ Motorola format uses different register names than defined
+ in m68k.h. */
+
+#undef REGISTER_NAMES
+
+#define REGISTER_NAMES \
+{"%d0", "%d1", "%d2", "%d3", "%d4", "%d5", "%d6", "%d7", \
+ "%a0", "%a1", "%a2", "%a3", "%a4", "%a5", "%a6", "%sp", \
+ "%fp0", "%fp1", "%fp2", "%fp3", "%fp4", "%fp5", "%fp6", "%fp7" }
+
+/* This is how to output an assembler line that says to advance the
+ location counter to a multiple of 2**LOG bytes. */
+
+#undef ASM_OUTPUT_ALIGN
+#define ASM_OUTPUT_ALIGN(FILE,LOG) \
+ if ((LOG) > 0) \
+ fprintf ((FILE), "\t%s \t%u\n", ALIGN_ASM_OP, 1 << (LOG)); \
+ else if ((LOG) > 31) \
+ abort ();
+
+/* Use proper assembler syntax for these macros. */
+#undef ASM_OUTPUT_REG_PUSH
+#define ASM_OUTPUT_REG_PUSH(FILE,REGNO) \
+ asm_fprintf (FILE, "\t%Omove.l %s,-(%Rsp)\n", reg_names[REGNO])
+
+#undef ASM_OUTPUT_REG_POP
+#define ASM_OUTPUT_REG_POP(FILE,REGNO) \
+ asm_fprintf (FILE, "\t%Omove.l (%Rsp)+,%s\n", reg_names[REGNO])
+
+/* Override the definition of NO_DOLLAR_IN_LABEL in svr4.h, for special
+ g++ assembler names. When this is defined, g++ uses embedded '.'
+ characters and some m68k assemblers have problems with this. The
+ chances are much greater that any particular assembler will permit
+ embedded '$' characters. */
+
+#undef NO_DOLLAR_IN_LABEL
+
+/* Define PCC_STATIC_STRUCT_RETURN if the convention on the target machine
+ is to use the nonreentrant technique for returning structure and union
+ values, as commonly implemented by the AT&T Portable C Compiler (PCC).
+ When defined, the gcc option -fpcc-struct-return can be used to cause
+ this form to be generated. When undefined, the option does nothing.
+ For m68k SVR4, the convention is to use a reentrant technique compatible
+ with the gcc default, so override the definition of this macro in m68k.h */
+
+#undef PCC_STATIC_STRUCT_RETURN
+
+/* Local common symbols are declared to the assembler with ".lcomm" rather
+ than ".bss", so override the definition in svr4.h */
+
+#undef BSS_ASM_OP
+#define BSS_ASM_OP ".lcomm"
+
+/* Register in which address to store a structure value is passed to a
+ function. The default in m68k.h is a1. For m68k/SVR4 it is a0. */
+
+#undef STRUCT_VALUE_REGNUM
+#define STRUCT_VALUE_REGNUM 8
+
+#define ASM_COMMENT_START "|"
+
+#undef TYPE_OPERAND_FMT
+#define TYPE_OPERAND_FMT "@%s"
+
+/* Define how the m68k registers should be numbered for Dwarf output.
+ The numbering provided here should be compatible with the native
+ SVR4 SDB debugger in the m68k/SVR4 reference port, where d0-d7
+ are 0-7, a0-a8 are 8-15, and fp0-fp7 are 16-23. */
+
+#undef DBX_REGISTER_NUMBER
+#define DBX_REGISTER_NUMBER(REGNO) (REGNO)
+
+/* The ASM_OUTPUT_SKIP macro is first defined in m68k.h, using ".skip".
+ It is then overridden by m68k/sgs.h to use ".space", and again by svr4.h
+ to use ".zero". The m68k/SVR4 assembler uses ".space", so repeat the
+ definition from m68k/sgs.h here. Note that ASM_NO_SKIP_IN_TEXT is
+ defined in m68k/sgs.h, so we don't have to repeat it here. */
+
+#undef ASM_OUTPUT_SKIP
+#define ASM_OUTPUT_SKIP(FILE,SIZE) \
+ fprintf (FILE, "\t%s %u\n", SPACE_ASM_OP, (SIZE))
+
+#if 0
+/* SVR4 m68k assembler is bitching on the `comm i,1,1' which askes for
+ 1 byte alignment. Don't generate alignment for COMMON seems to be
+ safer until we the assembler is fixed. */
+#undef ASM_OUTPUT_ALIGNED_COMMON
+/* Same problem with this one. */
+#undef ASM_OUTPUT_ALIGNED_LOCAL
+#endif
+
+/* The `string' directive on m68k svr4 does not handle string with
+ escape char (ie., `\') right. Use normal way to output ASCII bytes
+ seems to be safer. */
+#undef ASM_OUTPUT_ASCII
+#define ASM_OUTPUT_ASCII(FILE,PTR,LEN) \
+do { \
+ register int sp = 0, lp = 0, ch; \
+ fprintf ((FILE), "\t%s ", BYTE_ASM_OP); \
+ do { \
+ ch = (PTR)[sp]; \
+ if (ch > ' ' && ! (ch & 0x80) && ch != '\\') \
+ { \
+ fprintf ((FILE), "'%c", ch); \
+ } \
+ else \
+ { \
+ fprintf ((FILE), "0x%x", ch); \
+ } \
+ if (++sp < (LEN)) \
+ { \
+ if ((sp % 10) == 0) \
+ { \
+ fprintf ((FILE), "\n\t%s ", BYTE_ASM_OP); \
+ } \
+ else \
+ { \
+ putc (',', (FILE)); \
+ } \
+ } \
+ } while (sp < (LEN)); \
+ putc ('\n', (FILE)); \
+} while (0)
+
+/* SVR4 m68k assembler is bitching on the syntax `2.b'.
+ So use the "LLDnnn-LLnnn" format. Define LLDnnn after the table. */
+
+#undef ASM_OUTPUT_CASE_END
+#define ASM_OUTPUT_CASE_END(FILE,NUM,TABLE) \
+do { \
+ if (switch_table_difference_label_flag) \
+ asm_fprintf ((FILE), "\t%s %LLD%d,%LL%d\n", SET_ASM_OP, (NUM), (NUM));\
+ switch_table_difference_label_flag = 0; \
+} while (0)
+
+extern int switch_table_difference_label_flag;
+
+#undef ASM_OUTPUT_COMMON
+#undef ASM_OUTPUT_LOCAL
+#define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \
+( fputs (".comm ", (FILE)), \
+ assemble_name ((FILE), (NAME)), \
+ fprintf ((FILE), ",%u\n", (SIZE)))
+
+#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \
+( fputs (".lcomm ", (FILE)), \
+ assemble_name ((FILE), (NAME)), \
+ fprintf ((FILE), ",%u\n", (SIZE)))
+
+/* Currently, JUMP_TABLES_IN_TEXT_SECTION must be defined in order to
+ keep switch tables in the text section. */
+
+#define JUMP_TABLES_IN_TEXT_SECTION 1
+
+/* Override the definition in svr4.h. In m68k svr4, using swbeg is the
+ standard way to do switch table. */
+#undef ASM_OUTPUT_BEFORE_CASE_LABEL
+#define ASM_OUTPUT_BEFORE_CASE_LABEL(FILE,PREFIX,NUM,TABLE) \
+ fprintf ((FILE), "\t%s &%d\n", SWBEG_ASM_OP, XVECLEN (PATTERN (TABLE), 1));
+
+/* In m68k svr4, a symbol_ref rtx can be a valid PIC operand if it is an
+ operand of a function call. */
+#undef LEGITIMATE_PIC_OPERAND_P
+#define LEGITIMATE_PIC_OPERAND_P(X) \
+ (! symbolic_operand (X, VOIDmode) \
+ || ((GET_CODE(X) == SYMBOL_REF) && SYMBOL_REF_FLAG(X)))
+
+/* Turn off function cse if we are doing PIC. We always want function call
+ to be done as `bsr foo@PLTPC', so it will force the assembler to create
+ the PLT entry for `foo'. Doing function cse will cause the address of `foo'
+ to be loaded into a register, which is exactly what we want to avoid when
+ we are doing PIC on svr4 m68k. */
+#undef OVERRIDE_OPTIONS
+#define OVERRIDE_OPTIONS \
+{ \
+ if (flag_pic) flag_no_function_cse = 1; \
+ if (! TARGET_68020 && flag_pic == 2) \
+ error("-fPIC is not currently supported on the 68000 or 68010\n"); \
+}
+/* end of stuff from m68kv4.h */
+
+#undef SGS_CMP_ORDER
+
+#undef ENDFILE_SPEC
+#define ENDFILE_SPEC "crtend.o%s"
+
+#undef STARTFILE_SPEC
+#define STARTFILE_SPEC "crtbegin.o%s"
projects / platform / upstream / linaro-gcc.git / commitdiff