133 lines
3.8 KiB
C
133 lines
3.8 KiB
C
/* Configuration for an OpenBSD i386 target.
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Copyright (C) 2005 Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING. If not, write to
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the Free Software Foundation, 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA. */
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/* This gets defined in tm.h->linux.h->svr4.h, and keeps us from using
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libraries compiled with the native cc, so undef it. */
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#undef NO_DOLLAR_IN_LABEL
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/* Override the default comment-starter of "/". */
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#undef ASM_COMMENT_START
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#define ASM_COMMENT_START "#"
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#undef DBX_REGISTER_NUMBER
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#define DBX_REGISTER_NUMBER(n) svr4_dbx_register_map[n]
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/* This goes away when the math-emulator is fixed */
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#undef TARGET_DEFAULT
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#define TARGET_DEFAULT \
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(MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_NO_FANCY_MATH_387)
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/* Run-time target specifications */
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#define TARGET_OS_CPP_BUILTINS() \
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do \
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{ \
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OPENBSD_OS_CPP_BUILTINS(); \
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} \
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while (0)
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/* As an elf system, we need crtbegin/crtend stuff. */
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#undef STARTFILE_SPEC
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#define STARTFILE_SPEC "\
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%{!shared: %{pg:gcrt0%O%s} %{!pg:%{p:gcrt0%O%s} %{!p:crt0%O%s}} \
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crtbegin%O%s} %{shared:crtbeginS%O%s}"
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#undef ENDFILE_SPEC
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#define ENDFILE_SPEC "%{!shared:crtend%O%s} %{shared:crtendS%O%s}"
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/* Layout of source language data types. */
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/* This must agree with <machine/ansi.h> */
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#undef SIZE_TYPE
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#define SIZE_TYPE "unsigned int"
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#undef PTRDIFF_TYPE
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#define PTRDIFF_TYPE "int"
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#undef WCHAR_TYPE
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#define WCHAR_TYPE "int"
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#undef WCHAR_TYPE_SIZE
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#define WCHAR_TYPE_SIZE BITS_PER_WORD
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/* Assembler format: overall framework. */
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#undef ASM_APP_ON
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#define ASM_APP_ON "#APP\n"
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#undef ASM_APP_OFF
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#define ASM_APP_OFF "#NO_APP\n"
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#undef SET_ASM_OP
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#define SET_ASM_OP "\t.set\t"
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/* The following macros were originally stolen from i386v4.h.
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These have to be defined to get PIC code correct. */
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/* Assembler format: dispatch tables. */
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/* Assembler format: sections. */
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/* Stack & calling: aggregate returns. */
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/* Don't default to pcc-struct-return, because gcc is the only compiler, and
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we want to retain compatibility with older gcc versions. */
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#define DEFAULT_PCC_STRUCT_RETURN 0
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/* Assembler format: alignment output. */
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#ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
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#define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \
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if ((LOG) != 0) {\
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if ((MAX_SKIP) == 0) fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
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else fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP)); \
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}
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#endif
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/* Stack & calling: profiling. */
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/* OpenBSD's profiler recovers all information from the stack pointer.
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The icky part is not here, but in machine/profile.h. */
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#undef FUNCTION_PROFILER
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#define FUNCTION_PROFILER(FILE, LABELNO) \
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fputs (flag_pic ? "\tcall __mcount@PLT\n": "\tcall __mcount\n", FILE);
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/* Assembler format: exception region output. */
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/* our configuration still doesn't handle dwarf2 correctly */
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#define DWARF2_UNWIND_INFO 0
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/* Assembler format: alignment output. */
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/* Note that we pick up ASM_OUTPUT_MAX_SKIP_ALIGN from i386/gas.h */
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/* Note that we pick up ASM_OUTPUT_MI_THUNK from unix.h. */
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#undef LINK_SPEC
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#define LINK_SPEC \
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"%{!shared:%{!nostdlib:%{!r*:%{!e*:-e __start}}}} \
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%{shared:-shared} %{R*} \
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%{static:-Bstatic} \
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%{!static:-Bdynamic} \
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%{assert*} \
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%{!dynamic-linker:-dynamic-linker /usr/libexec/ld.so}"
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#define OBSD_HAS_CORRECT_SPECS
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