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jlechner |
/* Definitions for Linux for S/390.
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Copyright (C) 1999, 2000, 2001, 2002, 2004 Free Software Foundation, Inc.
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Contributed by Hartmut Penner (hpenner@de.ibm.com) and
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Ulrich Weigand (uweigand@de.ibm.com).
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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 it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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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 the Free
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Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301, USA. */
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#ifndef _LINUX_H
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#define _LINUX_H
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/* Target specific version string. */
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#ifdef DEFAULT_TARGET_64BIT
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#undef TARGET_VERSION
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#define TARGET_VERSION fprintf (stderr, " (Linux for zSeries)");
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#else
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#undef TARGET_VERSION
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#define TARGET_VERSION fprintf (stderr, " (Linux for S/390)");
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#endif
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/* Target specific type definitions. */
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/* ??? Do we really want long as size_t on 31-bit? */
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#undef SIZE_TYPE
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#define SIZE_TYPE (TARGET_64BIT ? "long unsigned int" : "long unsigned int")
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#undef PTRDIFF_TYPE
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#define PTRDIFF_TYPE (TARGET_64BIT ? "long int" : "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 32
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/* Target specific preprocessor settings. */
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#define TARGET_OS_CPP_BUILTINS() \
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do \
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{ \
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LINUX_TARGET_OS_CPP_BUILTINS(); \
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if (flag_pic) \
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{ \
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builtin_define ("__PIC__"); \
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builtin_define ("__pic__"); \
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} \
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} \
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while (0)
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/* Target specific assembler settings. */
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#undef ASM_SPEC
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#define ASM_SPEC "%{m31&m64}%{mesa&mzarch}%{march=*}"
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/* Target specific linker settings. */
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#ifdef DEFAULT_TARGET_64BIT
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#define MULTILIB_DEFAULTS { "m64" }
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#else
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#define MULTILIB_DEFAULTS { "m31" }
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#endif
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#undef LINK_SPEC
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#define LINK_SPEC \
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"%{m31:-m elf_s390}%{m64:-m elf64_s390} \
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%{shared:-shared} \
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%{!shared: \
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%{static:-static} \
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%{!static: \
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%{rdynamic:-export-dynamic} \
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%{!dynamic-linker: \
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%{m31:-dynamic-linker /lib/ld.so.1} \
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%{m64:-dynamic-linker /lib/ld64.so.1}}}}"
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#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
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#define MD_UNWIND_SUPPORT "config/s390/linux-unwind.h"
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#ifdef TARGET_LIBC_PROVIDES_SSP
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/* s390 glibc provides __stack_chk_guard in 0x14(tp),
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s390x glibc provides it at 0x28(tp). */
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#define TARGET_THREAD_SSP_OFFSET (TARGET_64BIT ? 0x28 : 0x14)
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#endif
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/* Define if long doubles should be mangled as 'g'. */
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#define TARGET_ALTERNATE_LONG_DOUBLE_MANGLING
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#endif
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