sol2.h revision 132718
1132718Skan/* Target definitions for GCC for Intel 80386 running Solaris 2 2122180Skan Copyright (C) 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003 390075Sobrien Free Software Foundation, Inc. 450397Sobrien Contributed by Fred Fish (fnf@cygnus.com). 518334Speter 6132718SkanThis file is part of GCC. 718334Speter 8132718SkanGCC is free software; you can redistribute it and/or modify 918334Speterit under the terms of the GNU General Public License as published by 1018334Speterthe Free Software Foundation; either version 2, or (at your option) 1118334Speterany later version. 1218334Speter 13132718SkanGCC is distributed in the hope that it will be useful, 1418334Speterbut WITHOUT ANY WARRANTY; without even the implied warranty of 1518334SpeterMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 1618334SpeterGNU General Public License for more details. 1718334Speter 1818334SpeterYou should have received a copy of the GNU General Public License 19132718Skanalong with GCC; see the file COPYING. If not, write to 2018334Speterthe Free Software Foundation, 59 Temple Place - Suite 330, 2118334SpeterBoston, MA 02111-1307, USA. */ 2218334Speter 2318334Speter/* The Solaris 2.0 x86 linker botches alignment of code sections. 2418334Speter It tries to align to a 16 byte boundary by padding with 0x00000090 2518334Speter ints, rather than 0x90 bytes (nop). This generates trash in the 2618334Speter ".init" section since the contribution from crtbegin.o is only 7 2718334Speter bytes. The linker pads it to 16 bytes with a single 0x90 byte, and 2818334Speter two 0x00000090 ints, which generates a segmentation violation when 2918334Speter executed. This macro forces the assembler to do the padding, since 3090075Sobrien it knows what it is doing. */ 3190075Sobrien#define FORCE_CODE_SECTION_ALIGN asm(ALIGN_ASM_OP "16"); 3218334Speter 3390075Sobrien/* Select a format to encode pointers in exception handling data. CODE 3490075Sobrien is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is 3590075Sobrien true if the symbol may be affected by dynamic relocations. */ 3690075Sobrien#undef ASM_PREFERRED_EH_DATA_FORMAT 3790075Sobrien#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \ 3890075Sobrien (flag_pic ? (GLOBAL ? DW_EH_PE_indirect : 0) | DW_EH_PE_datarel \ 3990075Sobrien : DW_EH_PE_absptr) 4018334Speter 4190075Sobrien/* Solaris 2/Intel as chokes on #line directives. */ 4218334Speter#undef CPP_SPEC 43117395Skan#define CPP_SPEC "%{.S:-P} %(cpp_subtarget)" 4418334Speter 45117395Skan/* FIXME: Removed -K PIC from generic Solaris 2 ASM_SPEC: the native assembler 46117395Skan gives many warnings: R_386_32 relocation is used for symbol ".text". */ 47117395Skan#undef ASM_SPEC 48117395Skan#define ASM_SPEC "\ 49117395Skan%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s \ 50117395Skan%(asm_cpu) \ 5190075Sobrien" 5290075Sobrien 53117395Skan#define ASM_CPU_SPEC "" 54117395Skan 55117395Skan#undef SUBTARGET_EXTRA_SPECS 56117395Skan#define SUBTARGET_EXTRA_SPECS \ 57117395Skan { "cpp_subtarget", CPP_SUBTARGET_SPEC }, \ 58117395Skan { "asm_cpu", ASM_CPU_SPEC }, \ 59117395Skan { "startfile_arch", STARTFILE_ARCH_SPEC }, \ 60117395Skan { "link_arch", LINK_ARCH_SPEC } 6118334Speter 6252284Sobrien#undef LOCAL_LABEL_PREFIX 6352284Sobrien#define LOCAL_LABEL_PREFIX "." 6496263Sobrien 6596263Sobrien/* The Solaris assembler does not support .quad. Do not use it. */ 6696263Sobrien#undef ASM_QUAD 67132718Skan 68132718Skan/* The Solaris assembler wants a .local for non-exported aliases. */ 69132718Skan#define ASM_OUTPUT_DEF_FROM_DECLS(FILE, DECL, TARGET) \ 70132718Skan do { \ 71132718Skan const char *declname = \ 72132718Skan IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (DECL)); \ 73132718Skan ASM_OUTPUT_DEF ((FILE), declname, \ 74132718Skan IDENTIFIER_POINTER (TARGET)); \ 75132718Skan if (! TREE_PUBLIC (DECL)) \ 76132718Skan { \ 77132718Skan fprintf ((FILE), "%s", LOCAL_ASM_OP); \ 78132718Skan assemble_name ((FILE), declname); \ 79132718Skan fprintf ((FILE), "\n"); \ 80132718Skan } \ 81132718Skan } while (0) 82