89 lines
3.2 KiB
C
89 lines
3.2 KiB
C
/* Definitions of target machine for GNU compiler,
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for IBM RS/6000 POWER running AIX version 3.x with the fixed assembler.
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Copyright (C) 1995, 1996 Free Software Foundation, Inc.
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Contributed by Jason Merrill (jason@cygnus.com).
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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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/* Enable AIX XL compiler calling convention breakage compatibility. */
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#define MASK_XL_CALL 0x40000000
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#define TARGET_XL_CALL (target_flags & MASK_XL_CALL)
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#undef SUBTARGET_SWITCHES
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#define SUBTARGET_SWITCHES \
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{"xl-call", MASK_XL_CALL}, \
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{"no-xl-call", - MASK_XL_CALL},
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#include "rs6000/rs6000.h"
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/* Tell the assembler to assume that all undefined names are external. */
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#undef ASM_SPEC
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#define ASM_SPEC "-u %(asm_cpu)"
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#undef ASM_DEFAULT_SPEC
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#define ASM_DEFAULT_SPEC "-mpwr"
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/* Define the options for the binder: Start text at 512, align all segments
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to 512 bytes, and warn if there is text relocation.
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The -bhalt:4 option supposedly changes the level at which ld will abort,
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but it also suppresses warnings about multiply defined symbols and is
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used by the AIX cc command. So we use it here.
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-bnodelcsect undoes a poor choice of default relating to multiply-defined
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csects. See AIX documentation for more information about this.
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-bM:SRE tells the linker that the output file is Shared REusable. Note
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that to actually build a shared library you will also need to specify an
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export list with the -Wl,-bE option.
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If -mcpu=common, export the architecture dependent multiply/divide routines
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as per README.RS6000. */
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#undef LINK_SPEC
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#ifndef CROSS_COMPILE
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#define LINK_SPEC "-T512 -H512 %{!r:-btextro} -bhalt:4 -bnodelcsect\
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%{static:-bnso -bI:/lib/syscalls.exp} \
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%{mcpu=common: milli.exp%s} \
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%{!shared:%{g*:-bexport:/usr/lib/libg.exp}} %{shared:-bM:SRE}"
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#else
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#define LINK_SPEC "-T512 -H512 %{!r:-btextro} -bhalt:4 -bnodelcsect\
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%{static:-bnso} \
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%{mcpu=common: milli.exp%s} \
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%{shared:-bM:SRE}"
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#endif
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/* These are not necessary when we pass -u to the assembler, and undefining
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them saves a great deal of space in object files. */
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#undef ASM_OUTPUT_EXTERNAL
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#undef ASM_OUTPUT_EXTERNAL_LIBCALL
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#define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME) \
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{ rtx _symref = XEXP (DECL_RTL (DECL), 0); \
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if ((TREE_CODE (DECL) == VAR_DECL \
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|| TREE_CODE (DECL) == FUNCTION_DECL) \
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&& (NAME)[strlen (NAME) - 1] != ']') \
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{ \
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char *_name = (char *) permalloc (strlen (XSTR (_symref, 0)) + 5); \
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strcpy (_name, XSTR (_symref, 0)); \
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strcat (_name, TREE_CODE (DECL) == FUNCTION_DECL ? "[DS]" : "[RW]"); \
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XSTR (_symref, 0) = _name; \
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} \
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}
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