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[/] [openrisc/] [trunk/] [gnu-old/] [gcc-4.2.2/] [gcc/] [config/] [i386/] [sol2.h] - Rev 823
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/* Target definitions for GCC for Intel 80386 running Solaris 2 Copyright (C) 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2007 Free Software Foundation, Inc. Contributed by Fred Fish (fnf@cygnus.com). This file is part of GCC. GCC 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 3, or (at your option) any later version. GCC 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 GCC; see the file COPYING3. If not see <http://www.gnu.org/licenses/>. */ /* The Solaris 2.0 x86 linker botches alignment of code sections. It tries to align to a 16 byte boundary by padding with 0x00000090 ints, rather than 0x90 bytes (nop). This generates trash in the ".init" section since the contribution from crtbegin.o is only 7 bytes. The linker pads it to 16 bytes with a single 0x90 byte, and two 0x00000090 ints, which generates a segmentation violation when executed. This macro forces the assembler to do the padding, since it knows what it is doing. */ #define FORCE_CODE_SECTION_ALIGN asm(ALIGN_ASM_OP "16"); /* Old versions of the Solaris assembler can not handle the difference of labels in different sections, so force DW_EH_PE_datarel. */ #undef ASM_PREFERRED_EH_DATA_FORMAT #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \ (flag_pic ? ((GLOBAL ? DW_EH_PE_indirect : 0) \ | (TARGET_64BIT ? DW_EH_PE_pcrel | DW_EH_PE_sdata4 \ : DW_EH_PE_datarel)) \ : DW_EH_PE_absptr) /* The Solaris linker will not merge a read-only .eh_frame section with a read-write .eh_frame section. None of the encodings used with non-PIC code require runtime relocations. In 64-bit mode, since there is no backwards compatibility issue, we use a read-only section for .eh_frame. In 32-bit mode, we use a writable .eh_frame section in order to be compatible with G++ for Solaris x86. */ #undef EH_TABLES_CAN_BE_READ_ONLY #define EH_TABLES_CAN_BE_READ_ONLY (TARGET_64BIT) /* Solaris 2/Intel as chokes on #line directives. */ #undef CPP_SPEC #define CPP_SPEC "%{.S:-P} %(cpp_subtarget)" /* FIXME: Removed -K PIC from generic Solaris 2 ASM_SPEC: the native assembler gives many warnings: R_386_32 relocation is used for symbol ".text". */ #undef ASM_SPEC #define ASM_SPEC "\ %{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s \ %(asm_cpu) \ " #define ASM_CPU_SPEC "" #undef SUBTARGET_EXTRA_SPECS #define SUBTARGET_EXTRA_SPECS \ { "cpp_subtarget", CPP_SUBTARGET_SPEC }, \ { "asm_cpu", ASM_CPU_SPEC }, \ { "startfile_arch", STARTFILE_ARCH_SPEC }, \ { "link_arch", LINK_ARCH_SPEC } #undef LOCAL_LABEL_PREFIX #define LOCAL_LABEL_PREFIX "." /* The 32-bit Solaris assembler does not support .quad. Do not use it. */ #ifndef TARGET_BI_ARCH #undef ASM_QUAD #endif /* The Solaris assembler wants a .local for non-exported aliases. */ #define ASM_OUTPUT_DEF_FROM_DECLS(FILE, DECL, TARGET) \ do { \ const char *declname = \ IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (DECL)); \ ASM_OUTPUT_DEF ((FILE), declname, \ IDENTIFIER_POINTER (TARGET)); \ if (! TREE_PUBLIC (DECL)) \ { \ fprintf ((FILE), "%s", LOCAL_ASM_OP); \ assemble_name ((FILE), declname); \ fprintf ((FILE), "\n"); \ } \ } while (0) /* Solaris-specific #pragmas are implemented on top of attributes. Hook in the bits from config/sol2.c. */ #define SUBTARGET_INSERT_ATTRIBUTES solaris_insert_attributes #define SUBTARGET_ATTRIBUTE_TABLE SOLARIS_ATTRIBUTE_TABLE /* Output a simple call for .init/.fini. */ #define ASM_OUTPUT_CALL(FILE, FN) \ do \ { \ fprintf (FILE, "\tcall\t"); \ print_operand (FILE, XEXP (DECL_RTL (FN), 0), 'P'); \ fprintf (FILE, "\n"); \ } \ while (0) /* We do not need NT_VERSION notes. */ #undef X86_FILE_START_VERSION_DIRECTIVE #define X86_FILE_START_VERSION_DIRECTIVE false
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