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/* 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, 2009, 2010 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} %{Ym,*} -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 HAVE_AS_IX86_QUAD
#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)
/* Follow Sun requirements for TLS code sequences and use Sun assembler TLS
syntax. */
#undef TARGET_SUN_TLS
#define TARGET_SUN_TLS 1
/* 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. */
#ifndef USE_GAS
#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
/* The Solaris assembler cannot grok .stabd directives. */
#undef NO_DBX_BNSYM_ENSYM
#define NO_DBX_BNSYM_ENSYM 1
/* 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 ()
/* Undo i386/sysv4.h version. */
#undef SUBTARGET_RETURN_IN_MEMORY
/* Augment i386/unix.h version to return 8-byte vectors in memory, matching
Sun Studio compilers until version 12, the only ones supported on
Solaris 8 and 9. */
#undef TARGET_SUBTARGET_DEFAULT
#define TARGET_SUBTARGET_DEFAULT \
(MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS | MASK_VECT8_RETURNS)
/* 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)
/* We do not need NT_VERSION notes. */
#undef X86_FILE_START_VERSION_DIRECTIVE
#define X86_FILE_START_VERSION_DIRECTIVE false
/* Static stack checking is supported by means of probes. */
#define STACK_CHECK_STATIC_BUILTIN 1
/* Only recent versions of Solaris 11 ld properly support hidden .gnu.linkonce
sections, so don't use them. */
#ifndef TARGET_GNU_LD
#define USE_HIDDEN_LINKONCE 0
#endif
/* Put all *tf routines in libgcc. */
#undef LIBGCC2_HAS_TF_MODE
#define LIBGCC2_HAS_TF_MODE 1
#define LIBGCC2_TF_CEXT q
#define TF_SIZE 113
#define MD_UNWIND_SUPPORT "config/i386/sol2-unwind.h"
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