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Diffstat (limited to 'gcc/config/i386/sol2.h')
| -rw-r--r-- | gcc/config/i386/sol2.h | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/gcc/config/i386/sol2.h b/gcc/config/i386/sol2.h new file mode 100644 index 000000000..baddbb0b9 --- /dev/null +++ b/gcc/config/i386/sol2.h @@ -0,0 +1,182 @@ +/* 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, 2011 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 () + +/* 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 + +#undef SIZE_TYPE +#define SIZE_TYPE "unsigned int" + +#undef PTRDIFF_TYPE +#define PTRDIFF_TYPE "int" + +#define MD_UNWIND_SUPPORT "config/i386/sol2-unwind.h" |