diff options
| -rw-r--r-- | gcc/config/i386/linux.h | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/gcc/config/i386/linux.h b/gcc/config/i386/linux.h index 11651a3..70eca79c 100644 --- a/gcc/config/i386/linux.h +++ b/gcc/config/i386/linux.h @@ -27,6 +27,13 @@ #undef CPP_PREDEFINES #define CPP_PREDEFINES "-Dunix -Di386 -Dlinux" +#undef CPP_SPEC +#if TARGET_CPU_DEFAULT == 2 +#define CPP_SPEC "%{!m386:-D__i486__} %{posix:-D_POSIX_SOURCE}" +#else +#define CPP_SPEC "%{m486:-D__i486__} %{posix:-D_POSIX_SOURCE}" +#endif + #undef SIZE_TYPE #define SIZE_TYPE "unsigned int" @@ -82,3 +89,50 @@ #define GPLUSPLUS_INCLUDE_DIR "/usr/g++-include" #endif + +/* The following macros are copied from i386bsd.h. */ + +/* Redefine this to use %eax instead of %edx. */ +#undef FUNCTION_PROFILER +#define FUNCTION_PROFILER(FILE, LABELNO) \ +{ \ + if (flag_pic) \ + { \ + fprintf (FILE, "\tleal %sP%d@GOTOFF(%%ebx),%%eax\n", \ + LPREFIX, (LABELNO)); \ + fprintf (FILE, "\tcall *_mcount@GOT(%%ebx)\n"); \ + } \ + else \ + { \ + fprintf (FILE, "\tmovl $%sP%d,%%eax\n", LPREFIX, (LABELNO)); \ + fprintf (FILE, "\tcall _mcount\n"); \ + } \ +} + +/* There are conflicting reports about whether this system uses + a different assembler syntax. wilson@cygnus.com says # is right. */ +#undef COMMENT_BEGIN +#define COMMENT_BEGIN "#" + +#undef ASM_APP_ON +#define ASM_APP_ON "#APP\n" + +#undef ASM_APP_OFF +#define ASM_APP_OFF "#NO_APP\n" + +/* The following macros are copied from i386v4.h. */ + +/* These have to be defined to get PIC code correct */ + +/* This is how to output an element of a case-vector that is relative. + This is only used for PIC code. See comments by the `casesi' insn in + i386.md for an explanation of the expression this outputs. */ + +#undef ASM_OUTPUT_ADDR_DIFF_ELT +#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, VALUE, REL) \ + fprintf (FILE, "\t.long _GLOBAL_OFFSET_TABLE_+[.-%s%d]\n", LPREFIX, VALUE) + +/* Indicate that jump tables go in the text section. This is + necessary when compiling PIC code. */ + +#define JUMP_TABLES_IN_TEXT_SECTION |