257 lines
8.4 KiB
C
257 lines
8.4 KiB
C
/* Definitions of target machine GNU compiler. IA-64/AIX version.
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Copyright (C) 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
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Contributed by Timothy Wall (twall@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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/* AIX5 (aka Monterey): a mix of AIX and UnixWare.
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This file is loosely based on ia64/linux.h. */
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/* This macro is a C statement to print on `stderr' a string describing the
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particular machine description choice. */
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#define TARGET_VERSION fprintf (stderr, " (IA-64) AIX");
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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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#define SET_ASM_OP "\t.set\t"
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#undef MD_EXEC_PREFIX
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#undef MD_STARTFILE_PREFIX
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#define MD_STARTFILE_PREFIX "/usr/lib/ia64l64/"
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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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/* Provide a STARTFILE_SPEC appropriate for AIX. Here we add
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the crti C++ startup files file which provide part of the support
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for getting C++ file-scope static object constructed before entering
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`main'. */
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#undef STARTFILE_SPEC
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#define STARTFILE_SPEC \
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"%{!shared: \
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%{pg:gcrt1_64.o%s} %{!pg:%{p:mcrt1_64.o%s} \
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%{!p:%{profile:gcrt1_64.o%s} \
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%{!profile:crt1_64.o%s}}}} \
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crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
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/* Provide a ENDFILE_SPEC appropriate for AIX. Here we tack on
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the crtn file which provides termination of the support for getting C++
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file-scope static object constructed before entering `main'. */
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#undef ENDFILE_SPEC
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#define ENDFILE_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
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/* Define this so we can compile MS code for use with WINE. */
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#define HANDLE_PRAGMA_PACK_PUSH_POP
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/* A C string constant that tells the GNU CC driver program options to pass to
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CPP. It can also specify how to translate options you give to GNU CC into
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options for GNU CC to pass to the CPP. */
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/* If -ansi, we need to define _ANSI_C_SOURCE to get the right headers. */
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#undef CPP_SPEC
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#define CPP_SPEC "\
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%{mcpu=itanium:-D__itanium__} %{mbig-endian:-D__BIG_ENDIAN__} \
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%{ansi:-D_ANSI_C_SOURCE} \
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%{posix:-D_POSIX_SOURCE} \
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%{cpp_cpu} \
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-D__LONG_MAX__=9223372036854775807L"
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#undef CPP_PREDEFINES
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#define CPP_PREDEFINES "\
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-D__ia64 -D__ia64__ -D_AIX -D_AIX64 -D_LONGLONG -Dunix \
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-D__LP64__ -D__ELF__ -Asystem=unix -Asystem=aix -Acpu=ia64 -Amachine=ia64 \
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-D__64BIT__ -D_LONG_LONG -D_IA64 -D__int128=__size128_t"
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/* The GNU C++ standard library requires that these macros be defined. */
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#undef CPLUSPLUS_CPP_SPEC
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#define CPLUSPLUS_CPP_SPEC \
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"-D_XOPEN_SOURCE=500 \
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-D_XOPEN_SOURCE_EXTENDED=1 \
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-D_LARGE_FILE_API \
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-D_ALL_SOURCE \
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-D__LONG_MAX__=9223372036854775807L \
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%{cpp_cpu}"
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/* ia64-specific options for gas */
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#undef ASM_SPEC
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#define ASM_SPEC "-x %{mconstant-gp} %{mauto-pic}"
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/* Define this for shared library support. */
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#undef LINK_SPEC
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#define LINK_SPEC "\
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%{shared:-shared} \
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%{!shared: \
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%{!static: \
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%{rdynamic:-export-dynamic} \
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%{!dynamic-linker:-dynamic-linker /usr/lib/ia64l64/libc.so.1}} \
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%{static:-static}}"
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#define DONT_USE_BUILTIN_SETJMP
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#define JMP_BUF_SIZE 85
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/* Output any profiling code before the prologue. */
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#undef PROFILE_BEFORE_PROLOGUE
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#define PROFILE_BEFORE_PROLOGUE 1
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/* A C statement or compound statement to output to FILE some assembler code to
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call the profiling subroutine `mcount'.
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FIXME this is not supported until xlC supports it and can thus tell us
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how to do it.
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*/
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#undef FUNCTION_PROFILER
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#define FUNCTION_PROFILER(FILE, LABELNO) \
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do { \
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} while (0)
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/* Tell the linker where to find the crt*.o files. */
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#ifndef CROSS_COMPILE
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#undef STANDARD_STARTFILE_PREFIX
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#define STANDARD_STARTFILE_PREFIX "/usr/lib/ia64l64/"
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#endif
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/* Override SELECT_SECTION and SELECT_RTX_SECTION from config/ia64/sysv4.h;
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these definitions ignore flag_pic as if it were always set;
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it is illegal to have relocations in shared segments on AIX. */
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/* A C statement or statements to switch to the appropriate
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section for output of DECL. DECL is either a `VAR_DECL' node
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or a constant of some sort. RELOC indicates whether forming
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the initial value of DECL requires link-time relocations. */
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#undef SELECT_SECTION
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#define SELECT_SECTION(DECL,RELOC,ALIGN) \
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{ \
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if (TREE_CODE (DECL) == STRING_CST) \
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{ \
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if (! flag_writable_strings) \
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const_section (); \
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else \
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data_section (); \
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} \
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else if (TREE_CODE (DECL) == VAR_DECL) \
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{ \
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if (XSTR (XEXP (DECL_RTL (DECL), 0), 0)[0] \
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== SDATA_NAME_FLAG_CHAR) \
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sdata_section (); \
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/* ??? We need the extra ! RELOC check, because the default is to \
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only check RELOC if flag_pic is set, and we don't set flag_pic \
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(yet?). */ \
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else if (DECL_READONLY_SECTION (DECL, RELOC) && ! (RELOC)) \
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const_section (); \
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else \
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data_section (); \
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} \
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/* This could be a CONSTRUCTOR containing ADDR_EXPR of a VAR_DECL, \
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in which case we can't put it in a shared library rodata. */ \
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else if (RELOC) \
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data_section (); \
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else \
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const_section (); \
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}
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/* Similarly for constant pool data. */
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extern unsigned int ia64_section_threshold;
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#undef SELECT_RTX_SECTION
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#define SELECT_RTX_SECTION(MODE, RTX, ALIGN) \
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{ \
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if (GET_MODE_SIZE (MODE) > 0 \
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&& GET_MODE_SIZE (MODE) <= ia64_section_threshold) \
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sdata_section (); \
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else if (symbolic_operand ((RTX), (MODE))) \
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data_section (); \
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else \
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const_section (); \
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}
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#undef UNIQUE_SECTION
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#define UNIQUE_SECTION(DECL, RELOC) \
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do \
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{ \
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int len; \
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int sec; \
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const char *name; \
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char *string; \
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const char *prefix; \
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static const char *const prefixes[/*4*/3][2] = \
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{ \
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{ ".text.", ".gnu.linkonce.t." }, \
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{ ".rodata.", ".gnu.linkonce.r." }, \
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{ ".data.", ".gnu.linkonce.d." } \
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/* Do not generate unique sections for uninitialised \
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data since we do not have support for this in the \
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linker scripts yet... \
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,{ ".bss.", ".gnu.linkonce.b." } */ \
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}; \
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\
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if (TREE_CODE (DECL) == FUNCTION_DECL) \
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sec = 0; \
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/* else if (DECL_INITIAL (DECL) == 0 \
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|| DECL_INITIAL (DECL) == error_mark_node) \
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sec = 3; */ \
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else if (DECL_READONLY_SECTION (DECL, RELOC) && ! (RELOC))\
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sec = 1; \
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else \
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sec = 2; \
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\
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name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (DECL)); \
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/* Strip off any encoding in name. */ \
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STRIP_NAME_ENCODING (name, name); \
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prefix = prefixes[sec][DECL_ONE_ONLY(DECL)]; \
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len = strlen (name) + strlen (prefix); \
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string = alloca (len + 1); \
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\
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sprintf (string, "%s%s", prefix, name); \
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\
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DECL_SECTION_NAME (DECL) = build_string (len, string); \
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} \
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while (0)
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/* Override ia64/sysv4.h setting with that used by AIX5. */
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#undef WCHAR_TYPE
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#ifdef __64BIT__
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#define WCHAR_TYPE "unsigned int"
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#else
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#define WCHAR_TYPE "unsigned short"
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#endif
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/* Define the `__builtin_va_list' type for AIX. Use char* b/c that's what the
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system headers expect. */
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#define BUILD_VA_LIST_TYPE(VALIST) \
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(VALIST) = build_pointer_type(char_type_node)
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/* End of aix.h */
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