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/* Target definitions for GCC for Intel 80386 running Solaris 2
Copyright (C) 1993-2016 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/>. */
#define SUBTARGET_OPTIMIZATION_OPTIONS \
{ OPT_LEVELS_1_PLUS, OPT_momit_leaf_frame_pointer, NULL, 1 }
/* 32-bit Solaris/x86 only guarantees 4-byte stack alignment as required by
the i386 psABI, so realign it as necessary for SSE instructions. */
#undef STACK_REALIGN_DEFAULT
#define STACK_REALIGN_DEFAULT (TARGET_64BIT ? 0 : 1)
/* Old versions of the Solaris assembler can not handle the difference of
labels in different sections, so force DW_EH_PE_datarel if so. */
#ifndef HAVE_AS_IX86_DIFF_SECT_DELTA
#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)
#endif
/* 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)
/* Follow Sun requirements for TLS code sequences and use Sun assembler TLS
syntax. */
#undef TARGET_SUN_TLS
#define TARGET_SUN_TLS 1
/* Solaris 2/Intel as chokes on #line directives before Solaris 10. */
#undef CPP_SPEC
#define CPP_SPEC "%{,assembler-with-cpp:-P} %(cpp_subtarget)"
/* GNU as understands --32 and --64, but the native Solaris
assembler requires -xarch=generic or -xarch=generic64 instead. */
#ifdef USE_GAS
#define ASM_CPU32_DEFAULT_SPEC "--32"
#define ASM_CPU64_DEFAULT_SPEC "--64"
#else
#define ASM_CPU32_DEFAULT_SPEC "-xarch=generic"
#define ASM_CPU64_DEFAULT_SPEC "-xarch=generic64"
#endif
#undef ASM_CPU_SPEC
#define ASM_CPU_SPEC "%(asm_cpu_default)"
/* Don't include ASM_PIC_SPEC. While the Solaris 10+ assembler accepts -K PIC,
it gives many warnings:
Absolute relocation is used for symbol "<symbol>"
GNU as doesn't recognize -K at all. */
#undef ASM_SPEC
#define ASM_SPEC ASM_SPEC_BASE
#define DEFAULT_ARCH32_P !TARGET_64BIT_DEFAULT
#define ARCH64_SUBDIR "amd64"
#ifdef USE_GLD
/* Since binutils 2.21, GNU ld supports new *_sol2 emulations to strictly
follow the Solaris 2 ABI. Prefer them if present. */
#ifdef HAVE_LD_SOL2_EMULATION
#define ARCH32_EMULATION "elf_i386_sol2"
#define ARCH64_EMULATION "elf_x86_64_sol2"
#else
#define ARCH32_EMULATION "elf_i386"
#define ARCH64_EMULATION "elf_x86_64"
#endif
#endif
#define ENDFILE_ARCH_SPEC \
"%{mpc32:crtprec32.o%s} \
%{mpc64:crtprec64.o%s} \
%{mpc80:crtprec80.o%s}"
#define SUBTARGET_CPU_EXTRA_SPECS \
{ "cpp_subtarget", CPP_SUBTARGET_SPEC }, \
{ "asm_cpu", ASM_CPU_SPEC }, \
{ "asm_cpu_default", ASM_CPU_DEFAULT_SPEC }, \
/* Register the Solaris-specific #pragma directives. */
#define REGISTER_SUBTARGET_PRAGMAS() solaris_register_pragmas ()
#undef LOCAL_LABEL_PREFIX
#define LOCAL_LABEL_PREFIX "."
/* The Solaris 10 FCS as doesn't accept "#" comments, while later versions
do. */
#undef ASM_COMMENT_START
#define ASM_COMMENT_START "/"
/* The 32-bit Solaris assembler does not support .quad. Do not use it. */
#ifndef HAVE_AS_IX86_QUAD
#undef ASM_QUAD
#endif
/* The native Solaris assembler can't calculate the difference between
symbols in different sections, which causes problems for -fPIC jump
tables in .rodata. */
#ifndef HAVE_AS_IX86_DIFF_SECT_DELTA
#undef JUMP_TABLES_IN_TEXT_SECTION
#define JUMP_TABLES_IN_TEXT_SECTION 1
/* The native Solaris assembler cannot handle the SYMBOL-. syntax, but
requires SYMBOL@rel/@rel64 instead. */
#define ASM_OUTPUT_DWARF_PCREL(FILE, SIZE, LABEL) \
do { \
fputs (integer_asm_op (SIZE, FALSE), FILE); \
assemble_name (FILE, LABEL); \
fputs (SIZE == 8 ? "@rel64" : "@rel", FILE); \
} while (0)
#endif
/* The Solaris assembler wants a .local for non-exported aliases. */
#define ASM_OUTPUT_DEF_FROM_DECLS(FILE, DECL, TARGET) \
do { \
tree id = DECL_ASSEMBLER_NAME (DECL); \
ultimate_transparent_alias_target (&id); \
const char *declname = IDENTIFIER_POINTER (id); \
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)
#ifndef USE_GAS
/* The Sun assembler uses .tcomm for TLS common sections. */
#define TLS_COMMON_ASM_OP ".tcomm"
/* Similar to the Sun assembler on SPARC, the native assembler requires
TLS objects to be declared as @tls_obj (not @tls_object). Unlike SPARC,
gas doesn't understand this variant. */
#undef ASM_DECLARE_OBJECT_NAME
#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
do \
{ \
HOST_WIDE_INT size; \
\
if (targetm.have_tls && DECL_THREAD_LOCAL_P (DECL)) \
ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "tls_obj"); \
else \
ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \
\
size_directive_output = 0; \
if (!flag_inhibit_size_directive \
&& (DECL) && DECL_SIZE (DECL)) \
{ \
size_directive_output = 1; \
size = int_size_in_bytes (TREE_TYPE (DECL)); \
ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, size); \
} \
\
ASM_OUTPUT_LABEL (FILE, NAME); \
} \
while (0)
#endif /* !USE_GAS */
/* As in sparc/sol2.h, override the default from i386/x86-64.h to work
around Sun as TLS bug. */
#undef ASM_OUTPUT_ALIGNED_DECL_COMMON
#define ASM_OUTPUT_ALIGNED_DECL_COMMON(FILE, DECL, NAME, SIZE, ALIGN) \
do \
{ \
if (TARGET_SUN_TLS \
&& in_section \
&& ((in_section->common.flags & SECTION_TLS) == SECTION_TLS)) \
switch_to_section (bss_section); \
x86_elf_aligned_decl_common (FILE, DECL, NAME, SIZE, ALIGN); \
} \
while (0)
/* Output a simple call for .init/.fini. */
#define ASM_OUTPUT_CALL(FILE, FN) \
do \
{ \
fprintf (FILE, "\tcall\t"); \
ix86_print_operand (FILE, XEXP (DECL_RTL (FN), 0), 'P'); \
fprintf (FILE, "\n"); \
} \
while (0)
#undef TARGET_ASM_NAMED_SECTION
#define TARGET_ASM_NAMED_SECTION i386_solaris_elf_named_section
/* Sun as requires "h" flag for large sections, GNU as can do without, but
accepts "l". */
#ifdef USE_GAS
#define MACH_DEP_SECTION_ASM_FLAG 'l'
#else
#define MACH_DEP_SECTION_ASM_FLAG 'h'
#endif
#ifndef USE_GAS
/* Emit COMDAT group signature symbols for Sun as. */
#undef TARGET_ASM_FILE_END
#define TARGET_ASM_FILE_END solaris_file_end
#endif
/* Unlike GNU ld, Sun ld doesn't coalesce .ctors.N/.dtors.N sections, so
inhibit their creation. Also cf. sparc/sysv4.h. */
#ifndef USE_GLD
#define CTORS_SECTION_ASM_OP "\t.section\t.ctors, \"aw\""
#define DTORS_SECTION_ASM_OP "\t.section\t.dtors, \"aw\""
#endif
#ifndef USE_GAS
#define LARGECOMM_SECTION_ASM_OP "\t.lbcomm\t"
#endif
#define USE_IX86_FRAME_POINTER 1
#define USE_X86_64_FRAME_POINTER 1
#undef NO_PROFILE_COUNTERS
#undef MCOUNT_NAME
#define MCOUNT_NAME "_mcount"
/* We do not need NT_VERSION notes. */
#undef X86_FILE_START_VERSION_DIRECTIVE
#define X86_FILE_START_VERSION_DIRECTIVE false
/* Only recent versions of Solaris 11 ld properly support hidden .gnu.linkonce
sections, so don't use them. */
#ifndef USE_GLD
#define USE_HIDDEN_LINKONCE 0
#endif
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