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Diffstat (limited to 'contrib/gcc/config/elfos.h')
| -rw-r--r-- | contrib/gcc/config/elfos.h | 508 |
1 files changed, 0 insertions, 508 deletions
diff --git a/contrib/gcc/config/elfos.h b/contrib/gcc/config/elfos.h deleted file mode 100644 index 96a8e850b006..000000000000 --- a/contrib/gcc/config/elfos.h +++ /dev/null @@ -1,508 +0,0 @@ -/* elfos.h -- operating system specific defines to be used when - targeting GCC for some generic ELF system - Copyright (C) 1991, 1994, 1995, 1999, 2000, 2001, 2002, 2003, 2004 - Free Software Foundation, Inc. - Based on svr4.h contributed by Ron Guilmette (rfg@netcom.com). - -This file is part of GCC. - -GCC 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. - -GCC 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 GCC; see the file COPYING. If not, write to -the Free Software Foundation, 51 Franklin Street, Fifth Floor, -Boston, MA 02110-1301, USA. */ - -#define TARGET_OBJFMT_CPP_BUILTINS() \ - do \ - { \ - builtin_define ("__ELF__"); \ - } \ - while (0) - -/* Define a symbol indicating that we are using elfos.h. - Some CPU specific configuration files use this. */ -#define USING_ELFOS_H - -/* The prefix to add to user-visible assembler symbols. - - For ELF systems the convention is *not* to prepend a leading - underscore onto user-level symbol names. */ - -#undef USER_LABEL_PREFIX -#define USER_LABEL_PREFIX "" - -/* Biggest alignment supported by the object file format of this - machine. Use this macro to limit the alignment which can be - specified using the `__attribute__ ((aligned (N)))' construct. If - not defined, the default value is `BIGGEST_ALIGNMENT'. */ -#ifndef MAX_OFILE_ALIGNMENT -#define MAX_OFILE_ALIGNMENT (32768 * 8) -#endif - -/* Use periods rather than dollar signs in special g++ assembler names. */ - -#define NO_DOLLAR_IN_LABEL - -/* Writing `int' for a bit-field forces int alignment for the structure. */ - -#ifndef PCC_BITFIELD_TYPE_MATTERS -#define PCC_BITFIELD_TYPE_MATTERS 1 -#endif - -/* Handle #pragma weak and #pragma pack. */ - -#define HANDLE_SYSV_PRAGMA 1 - -/* All ELF targets can support DWARF-2. */ - -#define DWARF2_DEBUGGING_INFO 1 - -/* The GNU tools operate better with dwarf2, and it is required by some - psABI's. Since we don't have any native tools to be compatible with, - default to dwarf2. */ - -#ifndef PREFERRED_DEBUGGING_TYPE -#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG -#endif - -/* All SVR4 targets use the ELF object file format. */ -#define OBJECT_FORMAT_ELF - - -/* Output #ident as a .ident. */ - -#define ASM_OUTPUT_IDENT(FILE, NAME) \ - fprintf (FILE, "%s\"%s\"\n", IDENT_ASM_OP, NAME); - -#define IDENT_ASM_OP "\t.ident\t" - -#undef SET_ASM_OP -#define SET_ASM_OP "\t.set\t" - -/* Most svr4 assemblers want a .file directive at the beginning of - their input file. */ -#define TARGET_ASM_FILE_START_FILE_DIRECTIVE true - -/* 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 "\t.zero\t" - -#undef ASM_OUTPUT_SKIP -#define ASM_OUTPUT_SKIP(FILE, SIZE) \ - fprintf ((FILE), "%s"HOST_WIDE_INT_PRINT_UNSIGNED"\n",\ - SKIP_ASM_OP, (SIZE)) - -/* 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%u", PREFIX, (unsigned) (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. */ - -#undef ALIGN_ASM_OP -#define ALIGN_ASM_OP "\t.align\t" - -#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) \ - (*targetm.asm_out.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) \ - (*targetm.asm_out.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 "\t.comm\t" - -#undef ASM_OUTPUT_ALIGNED_COMMON -#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \ - do \ - { \ - fprintf ((FILE), "%s", COMMON_ASM_OP); \ - assemble_name ((FILE), (NAME)); \ - fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%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 "\t.local\t" - -#undef ASM_OUTPUT_ALIGNED_LOCAL -#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \ - do \ - { \ - fprintf ((FILE), "%s", 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 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 "\t.ascii\t" - -/* Support a read-only data section. */ -#define READONLY_DATA_SECTION_ASM_OP "\t.section\t.rodata" - -/* 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 "\t.section\t.init" -#define FINI_SECTION_ASM_OP "\t.section\t.fini" - -/* Output assembly directive to move to the beginning of current section. */ -#ifdef HAVE_GAS_SUBSECTION_ORDERING -# define ASM_SECTION_START_OP "\t.subsection\t-1" -# define ASM_OUTPUT_SECTION_START(FILE) \ - fprintf ((FILE), "%s\n", ASM_SECTION_START_OP) -#endif - -#define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1) - -/* Switch into a generic section. */ -#define TARGET_ASM_NAMED_SECTION default_elf_asm_named_section - -#undef TARGET_ASM_SELECT_RTX_SECTION -#define TARGET_ASM_SELECT_RTX_SECTION default_elf_select_rtx_section -#undef TARGET_ASM_SELECT_SECTION -#define TARGET_ASM_SELECT_SECTION default_elf_select_section -#undef TARGET_HAVE_SWITCHABLE_BSS_SECTIONS -#define TARGET_HAVE_SWITCHABLE_BSS_SECTIONS true - -/* 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 "\t.type\t" -#define SIZE_ASM_OP "\t.size\t" - -/* 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. */ - -#ifndef ASM_DECLARE_FUNCTION_NAME -#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \ - do \ - { \ - ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function"); \ - ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \ - ASM_OUTPUT_LABEL (FILE, NAME); \ - } \ - while (0) -#endif - -/* Write the extra assembler code needed to declare an object properly. */ - -#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \ - do \ - { \ - HOST_WIDE_INT size; \ - \ - ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \ - \ - size_directive_output = 0; \ - if (!flag_inhibit_size_directive \ - && (DECL) && DECL_SIZE (DECL)) \ - { \ - size_directive_output = 1; \ - size = int_size_in_bytes (TREE_TYPE (DECL)); \ - ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, size); \ - } \ - \ - 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. */ - -#undef ASM_FINISH_DECLARE_OBJECT -#define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END)\ - do \ - { \ - const char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \ - HOST_WIDE_INT size; \ - \ - 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; \ - size = int_size_in_bytes (TREE_TYPE (DECL)); \ - ASM_OUTPUT_SIZE_DIRECTIVE (FILE, name, size); \ - } \ - } \ - while (0) - -/* This is how to declare the size of a function. */ -#ifndef ASM_DECLARE_FUNCTION_SIZE -#define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \ - do \ - { \ - if (!flag_inhibit_size_directive) \ - ASM_OUTPUT_MEASURED_SIZE (FILE, FNAME); \ - } \ - while (0) -#endif - -/* 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 "\t.string\t" - -/* 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 const unsigned char *_limited_str = \ - (const unsigned char *) (STR); \ - register unsigned ch; \ - \ - fprintf ((FILE), "%s\"", 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 \ - { \ - const unsigned char *_ascii_bytes = \ - (const unsigned char *) (STR); \ - const unsigned char *limit = _ascii_bytes + (LENGTH); \ - const unsigned char *last_null = NULL; \ - unsigned bytes_in_chunk = 0; \ - \ - for (; _ascii_bytes < limit; _ascii_bytes++) \ - { \ - const unsigned char *p; \ - \ - if (bytes_in_chunk >= 60) \ - { \ - fprintf ((FILE), "\"\n"); \ - bytes_in_chunk = 0; \ - } \ - \ - if (_ascii_bytes > last_null) \ - { \ - for (p = _ascii_bytes; p < limit && *p != '\0'; p++) \ - continue; \ - last_null = p; \ - } \ - else \ - p = last_null; \ - \ - if (p < limit && (p - _ascii_bytes) <= (long)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), "%s\"", 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) - -/* A C statement (sans semicolon) to output to the stdio stream STREAM - any text necessary for declaring the name of an external symbol - named NAME whch is referenced in this compilation but not defined. - It is needed to properly support non-default visibility. */ - -#ifndef ASM_OUTPUT_EXTERNAL -#define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME) \ - default_elf_asm_output_external (FILE, DECL, NAME) -#endif |