131 lines
4.1 KiB
C
131 lines
4.1 KiB
C
/* Definitions for SPARC running Linux-based GNU systems with a.out.
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Copyright (C) 1996, 1997 Free Software Foundation, Inc.
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Contributed by Eddie C. Dost (ecd@skynet.be)
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This file is part of GNU CC.
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GNU CC 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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GNU CC 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 GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include <aoutos.h>
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#include <sparc/sparc.h>
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/* Don't assume anything about the header files. */
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#define NO_IMPLICIT_EXTERN_C
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#undef HAVE_ATEXIT
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#define HAVE_ATEXIT
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/* GNU/Linux uses ctype from glibc.a. I am not sure how complete it is.
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For now, we play safe. It may change later. */
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#if 0
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#undef MULTIBYTE_CHARS
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#define MULTIBYTE_CHARS 1
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#endif
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/* We need that too. */
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#define HANDLE_SYSV_PRAGMA
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#undef MD_EXEC_PREFIX
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#undef MD_STARTFILE_PREFIX
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/* Output at beginning of assembler file. */
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/* The .file command should always begin the output. */
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#undef ASM_FILE_START
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#define ASM_FILE_START(FILE) \
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do { \
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output_file_directive (FILE, main_input_filename); \
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fprintf (FILE, "\t.version\t\"01.01\"\n"); \
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} while (0)
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#undef STARTFILE_SPEC
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#define STARTFILE_SPEC "%{pg:gcrt0.o%s} %{!pg:%{p:gcrt0.o%s} %{!p:crt0.o%s}} %{static:-static}"
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#undef TARGET_VERSION
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#define TARGET_VERSION fprintf (stderr, " (sparc GNU/Linux with a.out)");
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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 "long int"
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#undef WCHAR_TYPE_SIZE
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#define WCHAR_TYPE_SIZE BITS_PER_WORD
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#undef CPP_PREDEFINES
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#define CPP_PREDEFINES "-Dunix -Dsparc -Dlinux -Asystem(unix) -Asystem(posix)"
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#undef CPP_SUBTARGET_SPEC
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#define CPP_SUBTARGET_SPEC \
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"%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{posix:-D_POSIX_SOURCE}"
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/* Don't default to pcc-struct-return, because gcc is the only compiler,
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and we want to retain compatibility with older gcc versions. */
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#define DEFAULT_PCC_STRUCT_RETURN 0
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#undef LIB_SPEC
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#if 1
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/* We no longer link with libc_p.a or libg.a by default. If you
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want to profile or debug the GNU/Linux C library, please add
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-lc_p or -ggdb to LDFLAGS at the link time, respectively. */
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#define LIB_SPEC \
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"%{mieee-fp:-lieee} %{p:-lgmon} %{pg:-lgmon} %{!ggdb:-lc} %{ggdb:-lg}"
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#else
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#define LIB_SPEC \
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"%{mieee-fp:-lieee} %{p:-lgmon -lc_p} %{pg:-lgmon -lc_p} \
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%{!p:%{!pg:%{!g*:-lc} %{g*:-lg -static}}}"
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#endif
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#undef LINK_SPEC
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#define LINK_SPEC "-m sparclinux"
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/* The sun bundled assembler doesn't accept -Yd, (and neither does gas).
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It's safe to pass -s always, even if -g is not used. */
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#undef ASM_SPEC
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#define ASM_SPEC \
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"%{V} %{v:%{!V:-V}} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s %{fpic:-K PIC} %{fPIC:-K PIC}"
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#if 0
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/* Define for support of TFmode long double and REAL_ARITHMETIC.
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Sparc ABI says that long double is 4 words. GNU/Linux does not support
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long double yet. */
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#define LONG_DOUBLE_TYPE_SIZE 128
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#endif
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/* Override MACHINE_STATE_{SAVE,RESTORE} because we have special
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traps available which can get and set the condition codes
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reliably. */
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#undef MACHINE_STATE_SAVE
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#define MACHINE_STATE_SAVE(ID) \
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unsigned long int ms_flags, ms_saveret; \
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asm volatile("ta 0x20\n\t" \
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"mov %%g1, %0\n\t" \
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"mov %%g2, %1\n\t" \
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: "=r" (ms_flags), "=r" (ms_saveret));
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#undef MACHINE_STATE_RESTORE
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#define MACHINE_STATE_RESTORE(ID) \
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asm volatile("mov %0, %%g1\n\t" \
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"mov %1, %%g2\n\t" \
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"ta 0x21\n\t" \
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: /* no outputs */ \
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: "r" (ms_flags), "r" (ms_saveret));
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