| /* Definitions of target machine GNU compiler. IA-64/AIX version. |
| Copyright (C) 1999, 2000, 2001, 2002 Free Software Foundation, Inc. |
| Contributed by Timothy Wall (twall@cygnus.com) |
| |
| This file is part of GNU CC. |
| |
| GNU CC is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 2, or (at your option) |
| any later version. |
| |
| GNU CC is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with GNU CC; see the file COPYING. If not, write to |
| the Free Software Foundation, 59 Temple Place - Suite 330, |
| Boston, MA 02111-1307, USA. */ |
| |
| /* AIX5 (aka Monterey): a mix of AIX and UnixWare. |
| This file is loosely based on ia64/linux.h. */ |
| |
| /* This macro is a C statement to print on `stderr' a string describing the |
| particular machine description choice. */ |
| |
| #define TARGET_VERSION fprintf (stderr, " (IA-64) AIX"); |
| |
| #undef ASM_APP_ON |
| #define ASM_APP_ON "#APP\n" |
| |
| #undef ASM_APP_OFF |
| #define ASM_APP_OFF "#NO_APP\n" |
| |
| #define SET_ASM_OP "\t.set\t" |
| |
| #undef MD_EXEC_PREFIX |
| #undef MD_STARTFILE_PREFIX |
| #define MD_STARTFILE_PREFIX "/usr/lib/ia64l64/" |
| |
| /* Output at beginning of assembler file. */ |
| /* The .file command should always begin the output. */ |
| #undef ASM_FILE_START |
| #define ASM_FILE_START(FILE) \ |
| do { \ |
| output_file_directive (FILE, main_input_filename); \ |
| fprintf (FILE, "\t.version\t\"01.01\"\n"); \ |
| } while (0) |
| |
| /* Provide a STARTFILE_SPEC appropriate for AIX. Here we add |
| the crti C++ startup files file which provide part of the support |
| for getting C++ file-scope static object constructed before entering |
| `main'. */ |
| |
| #undef STARTFILE_SPEC |
| #define STARTFILE_SPEC \ |
| "%{!shared: \ |
| %{pg:gcrt1_64.o%s} %{!pg:%{p:mcrt1_64.o%s} \ |
| %{!p:%{profile:gcrt1_64.o%s} \ |
| %{!profile:crt1_64.o%s}}}} \ |
| crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}" |
| |
| /* Provide a ENDFILE_SPEC appropriate for AIX. Here we tack on |
| the crtn file which provides termination of the support for getting C++ |
| file-scope static object constructed before entering `main'. */ |
| |
| #undef ENDFILE_SPEC |
| #define ENDFILE_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s" |
| |
| /* Define this so we can compile MS code for use with WINE. */ |
| #define HANDLE_PRAGMA_PACK_PUSH_POP |
| |
| /* A C string constant that tells the GNU CC driver program options to pass to |
| CPP. It can also specify how to translate options you give to GNU CC into |
| options for GNU CC to pass to the CPP. */ |
| |
| /* If -ansi, we need to define _ANSI_C_SOURCE to get the right headers. */ |
| #undef CPP_SPEC |
| #define CPP_SPEC "\ |
| %{mcpu=itanium:-D__itanium__} %{mbig-endian:-D__BIG_ENDIAN__} \ |
| %{ansi:-D_ANSI_C_SOURCE} \ |
| %{posix:-D_POSIX_SOURCE} \ |
| %{cpp_cpu} \ |
| -D__LONG_MAX__=9223372036854775807L" |
| |
| #undef CPP_PREDEFINES |
| #define CPP_PREDEFINES "\ |
| -D__ia64 -D__ia64__ -D_AIX -D_AIX64 -D_LONGLONG -Dunix \ |
| -D__LP64__ -D__ELF__ -Asystem=unix -Asystem=aix -Acpu=ia64 -Amachine=ia64 \ |
| -D__64BIT__ -D_LONG_LONG -D_IA64 -D__int128=__size128_t" |
| |
| /* The GNU C++ standard library requires that these macros be defined. */ |
| #undef CPLUSPLUS_CPP_SPEC |
| #define CPLUSPLUS_CPP_SPEC \ |
| "-D_XOPEN_SOURCE=500 \ |
| -D_XOPEN_SOURCE_EXTENDED=1 \ |
| -D_LARGE_FILE_API \ |
| -D_ALL_SOURCE \ |
| -D__LONG_MAX__=9223372036854775807L \ |
| %{cpp_cpu}" |
| |
| /* ia64-specific options for gas */ |
| #undef ASM_SPEC |
| #define ASM_SPEC "-x %{mconstant-gp} %{mauto-pic}" |
| |
| /* Define this for shared library support. */ |
| |
| #undef LINK_SPEC |
| #define LINK_SPEC "\ |
| %{shared:-shared} \ |
| %{!shared: \ |
| %{!static: \ |
| %{rdynamic:-export-dynamic} \ |
| %{!dynamic-linker:-dynamic-linker /usr/lib/ia64l64/libc.so.1}} \ |
| %{static:-static}}" |
| |
| #define DONT_USE_BUILTIN_SETJMP |
| #define JMP_BUF_SIZE 85 |
| |
| /* Output any profiling code before the prologue. */ |
| |
| #undef PROFILE_BEFORE_PROLOGUE |
| #define PROFILE_BEFORE_PROLOGUE 1 |
| |
| /* A C statement or compound statement to output to FILE some assembler code to |
| call the profiling subroutine `mcount'. |
| |
| FIXME this is not supported until xlC supports it and can thus tell us |
| how to do it. |
| */ |
| |
| #undef FUNCTION_PROFILER |
| #define FUNCTION_PROFILER(FILE, LABELNO) \ |
| do { \ |
| } while (0) |
| |
| /* Tell the linker where to find the crt*.o files. */ |
| |
| #ifndef CROSS_COMPILE |
| #undef STANDARD_STARTFILE_PREFIX |
| #define STANDARD_STARTFILE_PREFIX "/usr/lib/ia64l64/" |
| #endif |
| |
| /* Override SELECT_SECTION and SELECT_RTX_SECTION from config/ia64/sysv4.h; |
| these definitions ignore flag_pic as if it were always set; |
| it is illegal to have relocations in shared segments on AIX. */ |
| |
| /* A C statement or statements to switch to the appropriate |
| section for output of DECL. DECL is either a `VAR_DECL' node |
| or a constant of some sort. RELOC indicates whether forming |
| the initial value of DECL requires link-time relocations. */ |
| |
| #undef SELECT_SECTION |
| #define SELECT_SECTION(DECL,RELOC,ALIGN) \ |
| { \ |
| if (TREE_CODE (DECL) == STRING_CST) \ |
| { \ |
| if (! flag_writable_strings) \ |
| const_section (); \ |
| else \ |
| data_section (); \ |
| } \ |
| else if (TREE_CODE (DECL) == VAR_DECL) \ |
| { \ |
| if (XSTR (XEXP (DECL_RTL (DECL), 0), 0)[0] \ |
| == SDATA_NAME_FLAG_CHAR) \ |
| sdata_section (); \ |
| /* ??? We need the extra ! RELOC check, because the default is to \ |
| only check RELOC if flag_pic is set, and we don't set flag_pic \ |
| (yet?). */ \ |
| else if (DECL_READONLY_SECTION (DECL, RELOC) && ! (RELOC)) \ |
| const_section (); \ |
| else \ |
| data_section (); \ |
| } \ |
| /* This could be a CONSTRUCTOR containing ADDR_EXPR of a VAR_DECL, \ |
| in which case we can't put it in a shared library rodata. */ \ |
| else if (RELOC) \ |
| data_section (); \ |
| else \ |
| const_section (); \ |
| } |
| |
| /* Similarly for constant pool data. */ |
| |
| extern unsigned int ia64_section_threshold; |
| #undef SELECT_RTX_SECTION |
| #define SELECT_RTX_SECTION(MODE, RTX, ALIGN) \ |
| { \ |
| if (GET_MODE_SIZE (MODE) > 0 \ |
| && GET_MODE_SIZE (MODE) <= ia64_section_threshold) \ |
| sdata_section (); \ |
| else if (symbolic_operand ((RTX), (MODE))) \ |
| data_section (); \ |
| else \ |
| const_section (); \ |
| } |
| |
| #undef UNIQUE_SECTION |
| #define UNIQUE_SECTION(DECL, RELOC) \ |
| do \ |
| { \ |
| int len; \ |
| int sec; \ |
| const char *name; \ |
| char *string; \ |
| const char *prefix; \ |
| static const char *const prefixes[/*4*/3][2] = \ |
| { \ |
| { ".text.", ".gnu.linkonce.t." }, \ |
| { ".rodata.", ".gnu.linkonce.r." }, \ |
| { ".data.", ".gnu.linkonce.d." } \ |
| /* Do not generate unique sections for uninitialised \ |
| data since we do not have support for this in the \ |
| linker scripts yet... \ |
| ,{ ".bss.", ".gnu.linkonce.b." } */ \ |
| }; \ |
| \ |
| if (TREE_CODE (DECL) == FUNCTION_DECL) \ |
| sec = 0; \ |
| /* else if (DECL_INITIAL (DECL) == 0 \ |
| || DECL_INITIAL (DECL) == error_mark_node) \ |
| sec = 3; */ \ |
| else if (DECL_READONLY_SECTION (DECL, RELOC) && ! (RELOC))\ |
| sec = 1; \ |
| else \ |
| sec = 2; \ |
| \ |
| name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (DECL)); \ |
| /* Strip off any encoding in name. */ \ |
| STRIP_NAME_ENCODING (name, name); \ |
| prefix = prefixes[sec][DECL_ONE_ONLY(DECL)]; \ |
| len = strlen (name) + strlen (prefix); \ |
| string = alloca (len + 1); \ |
| \ |
| sprintf (string, "%s%s", prefix, name); \ |
| \ |
| DECL_SECTION_NAME (DECL) = build_string (len, string); \ |
| } \ |
| while (0) |
| |
| /* Override ia64/sysv4.h setting with that used by AIX5. */ |
| #undef WCHAR_TYPE |
| #ifdef __64BIT__ |
| #define WCHAR_TYPE "unsigned int" |
| #else |
| #define WCHAR_TYPE "unsigned short" |
| #endif |
| |
| /* Define the `__builtin_va_list' type for AIX. Use char* b/c that's what the |
| system headers expect. */ |
| #define BUILD_VA_LIST_TYPE(VALIST) \ |
| (VALIST) = build_pointer_type(char_type_node) |
| |
| /* End of aix.h */ |
