sol2.h revision 132718
1/* Target definitions for GCC for Intel 80386 running Solaris 2 2 Copyright (C) 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 3 Free Software Foundation, Inc. 4 Contributed by Fred Fish (fnf@cygnus.com). 5 6This file is part of GCC. 7 8GCC is free software; you can redistribute it and/or modify 9it under the terms of the GNU General Public License as published by 10the Free Software Foundation; either version 2, or (at your option) 11any later version. 12 13GCC is distributed in the hope that it will be useful, 14but WITHOUT ANY WARRANTY; without even the implied warranty of 15MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16GNU General Public License for more details. 17 18You should have received a copy of the GNU General Public License 19along with GCC; see the file COPYING. If not, write to 20the Free Software Foundation, 59 Temple Place - Suite 330, 21Boston, MA 02111-1307, USA. */ 22 23/* The Solaris 2.0 x86 linker botches alignment of code sections. 24 It tries to align to a 16 byte boundary by padding with 0x00000090 25 ints, rather than 0x90 bytes (nop). This generates trash in the 26 ".init" section since the contribution from crtbegin.o is only 7 27 bytes. The linker pads it to 16 bytes with a single 0x90 byte, and 28 two 0x00000090 ints, which generates a segmentation violation when 29 executed. This macro forces the assembler to do the padding, since 30 it knows what it is doing. */ 31#define FORCE_CODE_SECTION_ALIGN asm(ALIGN_ASM_OP "16"); 32 33/* Select a format to encode pointers in exception handling data. CODE 34 is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is 35 true if the symbol may be affected by dynamic relocations. */ 36#undef ASM_PREFERRED_EH_DATA_FORMAT 37#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \ 38 (flag_pic ? (GLOBAL ? DW_EH_PE_indirect : 0) | DW_EH_PE_datarel \ 39 : DW_EH_PE_absptr) 40 41/* Solaris 2/Intel as chokes on #line directives. */ 42#undef CPP_SPEC 43#define CPP_SPEC "%{.S:-P} %(cpp_subtarget)" 44 45/* FIXME: Removed -K PIC from generic Solaris 2 ASM_SPEC: the native assembler 46 gives many warnings: R_386_32 relocation is used for symbol ".text". */ 47#undef ASM_SPEC 48#define ASM_SPEC "\ 49%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s \ 50%(asm_cpu) \ 51" 52 53#define ASM_CPU_SPEC "" 54 55#undef SUBTARGET_EXTRA_SPECS 56#define SUBTARGET_EXTRA_SPECS \ 57 { "cpp_subtarget", CPP_SUBTARGET_SPEC }, \ 58 { "asm_cpu", ASM_CPU_SPEC }, \ 59 { "startfile_arch", STARTFILE_ARCH_SPEC }, \ 60 { "link_arch", LINK_ARCH_SPEC } 61 62#undef LOCAL_LABEL_PREFIX 63#define LOCAL_LABEL_PREFIX "." 64 65/* The Solaris assembler does not support .quad. Do not use it. */ 66#undef ASM_QUAD 67 68/* The Solaris assembler wants a .local for non-exported aliases. */ 69#define ASM_OUTPUT_DEF_FROM_DECLS(FILE, DECL, TARGET) \ 70 do { \ 71 const char *declname = \ 72 IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (DECL)); \ 73 ASM_OUTPUT_DEF ((FILE), declname, \ 74 IDENTIFIER_POINTER (TARGET)); \ 75 if (! TREE_PUBLIC (DECL)) \ 76 { \ 77 fprintf ((FILE), "%s", LOCAL_ASM_OP); \ 78 assemble_name ((FILE), declname); \ 79 fprintf ((FILE), "\n"); \ 80 } \ 81 } while (0) 82