/* 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
- Free Software Foundation, Inc.
+ Copyright (C) 1991, 1994, 1995, 1999, 2000, 2001, 2002, 2003, 2004,
+ 2007 Free Software Foundation, Inc.
Based on svr4.h contributed by Ron Guilmette (rfg@netcom.com).
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
+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)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
-GNU CC is distributed in the hope that it will be useful,
+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 GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
+
+#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. */
#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'. */
+/* The biggest alignment supported by ELF in bits. 32-bit ELF
+ supports section alignment up to (0x80000000 * 8), while
+ 64-bit ELF supports (0x8000000000000000 * 8). If this macro
+ is not defined, the default is the largest alignment supported
+ by 32-bit ELF and representable on a 32-bit host. Use this
+ macro to limit the alignment which can be specified using
+ the `__attribute__ ((aligned (N)))' construct. */
#ifndef MAX_OFILE_ALIGNMENT
-#define MAX_OFILE_ALIGNMENT (32768 * 8)
+#define MAX_OFILE_ALIGNMENT (((unsigned int) 1 << 28) * 8)
#endif
/* Use periods rather than dollar signs in special g++ assembler names. */
#define PCC_BITFIELD_TYPE_MATTERS 1
#endif
-/* Implicit library calls should use memcpy, not bcopy, etc. */
-
-#define TARGET_MEM_FUNCTIONS
-
/* Handle #pragma weak and #pragma pack. */
#define HANDLE_SYSV_PRAGMA 1
-/* System V Release 4 uses DWARF debugging info. */
-
-#define DWARF_DEBUGGING_INFO 1
-
/* All ELF targets can support DWARF-2. */
#define DWARF2_DEBUGGING_INFO 1
#undef SET_ASM_OP
#define SET_ASM_OP "\t.set\t"
-/* 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)
+/* 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. */
#undef ASM_OUTPUT_SKIP
#define ASM_OUTPUT_SKIP(FILE, SIZE) \
- fprintf (FILE, "%s%u\n", SKIP_ASM_OP, (SIZE))
-
-/* 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%u:\n", PREFIX, (unsigned) (NUM)); \
- } \
- while (0)
+ 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
do \
{ \
ASM_OUTPUT_BEFORE_CASE_LABEL (FILE, PREFIX, NUM, JUMPTABLE) \
- ASM_OUTPUT_INTERNAL_LABEL (FILE, PREFIX, NUM); \
+ (*targetm.asm_out.internal_label) (FILE, PREFIX, NUM); \
} \
while (0)
{ \
fprintf ((FILE), "%s", COMMON_ASM_OP); \
assemble_name ((FILE), (NAME)); \
- fprintf ((FILE), ",%u,%u\n", (SIZE), (ALIGN) / BITS_PER_UNIT); \
+ fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n", \
+ (SIZE), (ALIGN) / BITS_PER_UNIT); \
} \
while (0)
#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
#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
/* This is how we tell the assembler that a symbol is weak. */
-#define ASM_WEAKEN_LABEL(FILE, NAME) \
+#define ASM_WEAKEN_LABEL(FILE, NAME) \
do \
{ \
fputs ("\t.weak\t", (FILE)); \
- assemble_name ((FILE), (NAME)); \
+ assemble_name ((FILE), (NAME)); \
fputc ('\n', (FILE)); \
} \
while (0)
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 \
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: \
break; \
} \
} \
- \
+ \
fprintf ((FILE), "\"\n"); \
} \
while (0)
#define ASM_OUTPUT_ASCII(FILE, STR, LENGTH) \
do \
{ \
- register const unsigned char *_ascii_bytes = \
+ const unsigned char *_ascii_bytes = \
(const unsigned char *) (STR); \
- register const unsigned char *limit = _ascii_bytes + (LENGTH); \
- register unsigned bytes_in_chunk = 0; \
+ const unsigned char *limit = _ascii_bytes + (LENGTH); \
+ const unsigned char *last_null = NULL; \
+ unsigned bytes_in_chunk = 0; \
\
for (; _ascii_bytes < limit; _ascii_bytes++) \
{ \
- register const unsigned char *p; \
- \
+ const 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 (_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; \
} \
{ \
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: \
} \
} \
} \
- \
+ \
if (bytes_in_chunk > 0) \
fprintf ((FILE), "\"\n"); \
} \
while (0)
+
+/* Allow the use of the -frecord-gcc-switches switch via the
+ elf_record_gcc_switches function defined in varasm.c. */
+#undef TARGET_ASM_RECORD_GCC_SWITCHES
+#define TARGET_ASM_RECORD_GCC_SWITCHES elf_record_gcc_switches
+
+/* 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 which 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
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