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Diffstat (limited to 'gcc/config/ia64/aix.h')
| -rw-r--r-- | gcc/config/ia64/aix.h | 262 |
1 files changed, 262 insertions, 0 deletions
diff --git a/gcc/config/ia64/aix.h b/gcc/config/ia64/aix.h new file mode 100644 index 00000000000..36baf103fc7 --- /dev/null +++ b/gcc/config/ia64/aix.h @@ -0,0 +1,262 @@ +/* Definitions of target machine GNU compiler. IA-64/AIX version. + Copyright (C) 1999, 2000, 2001 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. */ + +#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 PREFERRED_DEBUGGING_TYPE*/ +/*#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG*/ + +#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" + +#undef DEFAULT_VTABLE_THUNKS +#define DEFAULT_VTABLE_THUNKS 1 + +/* 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) \ +{ \ + 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) \ +{ \ + 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 *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 + +/* Have to get rid of the system's definition so that we can use gcc's + instead. */ +#include <sys/machine.h> +#undef REG_SIZE + +/* 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 */ |