diff options
Diffstat (limited to 'gcc-4.4.0/gcc/config/i386/sol2.h')
| -rw-r--r-- | gcc-4.4.0/gcc/config/i386/sol2.h | 114 |
1 files changed, 114 insertions, 0 deletions
diff --git a/gcc-4.4.0/gcc/config/i386/sol2.h b/gcc-4.4.0/gcc/config/i386/sol2.h new file mode 100644 index 000000000..1d21cd9c0 --- /dev/null +++ b/gcc-4.4.0/gcc/config/i386/sol2.h @@ -0,0 +1,114 @@ +/* Target definitions for GCC for Intel 80386 running Solaris 2 + Copyright (C) 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, + 2004, 2007, 2008 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 "%{,assembler-with-cpp:-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 + +/* Register the Solaris-specific #pragma directives. */ +#define REGISTER_SUBTARGET_PRAGMAS() solaris_register_pragmas () + +/* 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 |