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jlechner |
/* Target definitions for GCC for Intel 80386 running Solaris 2
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Copyright (C) 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
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2004
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Free Software Foundation, Inc.
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Contributed by Fred Fish (fnf@cygnus.com).
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING. If not, write to
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the Free Software Foundation, 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA. */
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/* The Solaris 2.0 x86 linker botches alignment of code sections.
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It tries to align to a 16 byte boundary by padding with 0x00000090
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ints, rather than 0x90 bytes (nop). This generates trash in the
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".init" section since the contribution from crtbegin.o is only 7
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bytes. The linker pads it to 16 bytes with a single 0x90 byte, and
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two 0x00000090 ints, which generates a segmentation violation when
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executed. This macro forces the assembler to do the padding, since
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it knows what it is doing. */
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#define FORCE_CODE_SECTION_ALIGN asm(ALIGN_ASM_OP "16");
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/* Old versions of the Solaris assembler can not handle the difference of
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labels in different sections, so force DW_EH_PE_datarel. */
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#undef ASM_PREFERRED_EH_DATA_FORMAT
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#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
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(flag_pic ? ((GLOBAL ? DW_EH_PE_indirect : 0) \
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| (TARGET_64BIT ? DW_EH_PE_pcrel | DW_EH_PE_sdata4 \
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: DW_EH_PE_datarel)) \
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: DW_EH_PE_absptr)
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/* The Solaris linker will not merge a read-only .eh_frame section
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with a read-write .eh_frame section. None of the encodings used
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with non-PIC code require runtime relocations. In 64-bit mode,
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since there is no backwards compatibility issue, we use a read-only
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section for .eh_frame. In 32-bit mode, we use a writable .eh_frame
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section in order to be compatible with G++ for Solaris x86. */
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#undef EH_TABLES_CAN_BE_READ_ONLY
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#define EH_TABLES_CAN_BE_READ_ONLY (TARGET_64BIT)
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/* Solaris 2/Intel as chokes on #line directives. */
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#undef CPP_SPEC
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#define CPP_SPEC "%{.S:-P} %(cpp_subtarget)"
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/* FIXME: Removed -K PIC from generic Solaris 2 ASM_SPEC: the native assembler
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gives many warnings: R_386_32 relocation is used for symbol ".text". */
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#undef ASM_SPEC
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#define ASM_SPEC "\
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%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s \
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%(asm_cpu) \
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"
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#define ASM_CPU_SPEC ""
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#undef SUBTARGET_EXTRA_SPECS
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#define SUBTARGET_EXTRA_SPECS \
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{ "cpp_subtarget", CPP_SUBTARGET_SPEC }, \
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{ "asm_cpu", ASM_CPU_SPEC }, \
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{ "startfile_arch", STARTFILE_ARCH_SPEC }, \
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{ "link_arch", LINK_ARCH_SPEC }
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#undef LOCAL_LABEL_PREFIX
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#define LOCAL_LABEL_PREFIX "."
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/* The 32-bit Solaris assembler does not support .quad. Do not use it. */
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#ifndef TARGET_BI_ARCH
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#undef ASM_QUAD
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#endif
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/* The Solaris assembler wants a .local for non-exported aliases. */
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#define ASM_OUTPUT_DEF_FROM_DECLS(FILE, DECL, TARGET) \
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do { \
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const char *declname = \
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IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (DECL)); \
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ASM_OUTPUT_DEF ((FILE), declname, \
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IDENTIFIER_POINTER (TARGET)); \
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if (! TREE_PUBLIC (DECL)) \
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{ \
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fprintf ((FILE), "%s", LOCAL_ASM_OP); \
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assemble_name ((FILE), declname); \
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fprintf ((FILE), "\n"); \
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} \
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} while (0)
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/* Solaris-specific #pragmas are implemented on top of attributes. Hook in
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the bits from config/sol2.c. */
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#define SUBTARGET_INSERT_ATTRIBUTES solaris_insert_attributes
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#define SUBTARGET_ATTRIBUTE_TABLE SOLARIS_ATTRIBUTE_TABLE
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/* Output a simple call for .init/.fini. */
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#define ASM_OUTPUT_CALL(FILE, FN) \
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do \
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{ \
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fprintf (FILE, "\tcall\t"); \
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print_operand (FILE, XEXP (DECL_RTL (FN), 0), 'P'); \
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fprintf (FILE, "\n"); \
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} \
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while (0)
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/* We do not need NT_VERSION notes. */
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#undef X86_FILE_START_VERSION_DIRECTIVE
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#define X86_FILE_START_VERSION_DIRECTIVE false
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