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Diffstat (limited to 'contrib/gcc/config/i386/darwin.h')
| -rw-r--r-- | contrib/gcc/config/i386/darwin.h | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/contrib/gcc/config/i386/darwin.h b/contrib/gcc/config/i386/darwin.h new file mode 100644 index 0000000..55c29fd --- /dev/null +++ b/contrib/gcc/config/i386/darwin.h @@ -0,0 +1,120 @@ +/* Target definitions for x86 running Darwin. + Copyright (C) 2001, 2002 Free Software Foundation, Inc. + Contributed by Apple Computer Inc. + +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, 59 Temple Place - Suite 330, +Boston, MA 02111-1307, USA. */ + +/* Enable Mach-O bits in generic x86 code. */ +#undef TARGET_MACHO +#define TARGET_MACHO 1 + +#define TARGET_VERSION fprintf (stderr, " (i386 Darwin)"); + +#define TARGET_OS_CPP_BUILTINS() \ + do \ + { \ + builtin_define ("__i386__"); \ + builtin_define ("__LITTLE_ENDIAN__"); \ + builtin_define ("__MACH__"); \ + builtin_define ("__APPLE__"); \ + } \ + while (0) + +/* We want -fPIC by default, unless we're using -static to compile for + the kernel or some such. */ + +#undef CC1_SPEC +#define CC1_SPEC "%{!static:-fPIC}" + +/* The Darwin assembler mostly follows AT&T syntax. */ +#undef ASSEMBLER_DIALECT +#define ASSEMBLER_DIALECT ASM_ATT + +/* Define macro used to output shift-double opcodes when the shift + count is in %cl. Some assemblers require %cl as an argument; + some don't. This macro controls what to do: by default, don't + print %cl. */ + +#define SHIFT_DOUBLE_OMITS_COUNT 0 + +/* Define the syntax of pseudo-ops, labels and comments. */ + +/* String containing the assembler's comment-starter. */ + +#define ASM_COMMENT_START "#" + +/* By default, target has a 80387, uses IEEE compatible arithmetic, + and returns float values in the 387. */ + +#define TARGET_SUBTARGET_DEFAULT (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS) + +/* TARGET_DEEP_BRANCH_PREDICTION is incompatible with Mach-O PIC. */ + +#undef TARGET_DEEP_BRANCH_PREDICTION +#define TARGET_DEEP_BRANCH_PREDICTION 0 + +/* Define the syntax of pseudo-ops, labels and comments. */ + +#define LPREFIX "L" + +/* Assembler pseudos to introduce constants of various size. */ + +#define ASM_BYTE_OP "\t.byte\t" +#define ASM_SHORT "\t.word\t" +#define ASM_LONG "\t.long\t" +/* Darwin as doesn't do ".quad". */ + +#undef ASM_OUTPUT_ALIGN +#define ASM_OUTPUT_ALIGN(FILE,LOG) \ + do { if ((LOG) != 0) \ + { \ + if (in_text_section ()) \ + fprintf (FILE, "\t%s %d,0x90\n", ALIGN_ASM_OP, (LOG)); \ + else \ + fprintf (FILE, "\t%s %d\n", ALIGN_ASM_OP, (LOG)); \ + } \ + } while (0) + +/* This says how to output an assembler line + to define a global common symbol. */ + +#define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \ +( fputs (".comm ", (FILE)), \ + assemble_name ((FILE), (NAME)), \ + fprintf ((FILE), ",%u\n", (ROUNDED))) + +/* This says how to output an assembler line + to define a local common symbol. */ + +#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \ +( fputs (".lcomm ", (FILE)), \ + assemble_name ((FILE), (NAME)), \ + fprintf ((FILE), ",%u\n", (ROUNDED))) + +/* Darwin profiling -- call mcount. */ +#undef FUNCTION_PROFILER +#define FUNCTION_PROFILER(FILE, LABELNO) \ + do { \ + if (MACHOPIC_INDIRECT) \ + { \ + const char *name = machopic_stub_name ("*mcount"); \ + fprintf (FILE, "\tcall %s\n", name+1); /* skip '&' */ \ + machopic_validate_stub_or_non_lazy_ptr (name, /*stub:*/1); \ + } \ + else fprintf (FILE, "\tcall mcount\n"); \ + } while (0) |
