gcc/config/i386/sol2-bi.h

   1 /* Definitions of target machine for GCC, for bi-arch Solaris 2/x86.
   2    Copyright (C) 2004-2013 Free Software Foundation, Inc.
   3    Contributed by CodeSourcery, LLC.
   4
   5 This file is part of GCC.
   6
   7 GCC is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 3, or (at your option)
  10 any later version.
  11
  12 GCC is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GCC; see the file COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21 /* Override i386/sol2.h version: return 8-byte vectors in MMX registers if
  22    possible, matching Sun Studio 12 Update 1+ compilers and other x86
  23    targets.  */
  24 #undef TARGET_SUBTARGET_DEFAULT
  25 #define TARGET_SUBTARGET_DEFAULT \
  26         (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS)
  27
  28 #define SUBTARGET_OPTIMIZATION_OPTIONS                          \
  29   { OPT_LEVELS_1_PLUS, OPT_momit_leaf_frame_pointer, NULL, 1 }
  30
  31 /* GNU as understands --32 and --64, but the native Solaris
  32    assembler requires -xarch=generic or -xarch=generic64 instead.  */
  33 #ifdef USE_GAS
  34 #define ASM_CPU32_DEFAULT_SPEC "--32"
  35 #define ASM_CPU64_DEFAULT_SPEC "--64"
  36 #else
  37 #define ASM_CPU32_DEFAULT_SPEC "-xarch=generic"
  38 #define ASM_CPU64_DEFAULT_SPEC "-xarch=generic64"
  39 #endif
  40
  41 #undef ASM_CPU_SPEC
  42 #define ASM_CPU_SPEC "%(asm_cpu_default)"
  43
  44 /* Don't let i386/x86-64.h override i386/sol2.h version.  Still cannot use
  45    -K PIC with the Solaris 10+ assembler, it gives many warnings:
  46         Absolute relocation is used for symbol "<symbol>"  */
  47 #undef ASM_SPEC
  48 #define ASM_SPEC ASM_SPEC_BASE
  49
  50 /* We do not need to search a special directory for startup files.  */
  51 #undef MD_STARTFILE_PREFIX
  52
  53 #define DEFAULT_ARCH32_P !TARGET_64BIT_DEFAULT
  54
  55 #define ARCH64_SUBDIR "amd64"
  56
  57 #ifdef USE_GLD
  58 /* Since binutils 2.21, GNU ld supports new *_sol2 emulations to strictly
  59    follow the Solaris 2 ABI.  Prefer them if present.  */
  60 #ifdef HAVE_LD_SOL2_EMULATION
  61 #define ARCH32_EMULATION "elf_i386_sol2"
  62 #define ARCH64_EMULATION "elf_x86_64_sol2"
  63 #else
  64 #define ARCH32_EMULATION "elf_i386"
  65 #define ARCH64_EMULATION "elf_x86_64"
  66 #endif
  67 #endif
  68
  69 #undef ASM_COMMENT_START
  70 #define ASM_COMMENT_START "/"
  71
  72 /* The native Solaris assembler can't calculate the difference between
  73    symbols in different sections, which causes problems for -fPIC jump
  74    tables in .rodata.  */
  75 #ifndef HAVE_AS_IX86_DIFF_SECT_DELTA
  76 #undef JUMP_TABLES_IN_TEXT_SECTION
  77 #define JUMP_TABLES_IN_TEXT_SECTION 1
  78
  79 /* The native Solaris assembler cannot handle the SYMBOL-. syntax, but
  80    requires SYMBOL@rel/@rel64 instead.  */
  81 #define ASM_OUTPUT_DWARF_PCREL(FILE, SIZE, LABEL)       \
  82   do {                                                  \
  83     fputs (integer_asm_op (SIZE, FALSE), FILE);         \
  84     assemble_name (FILE, LABEL);                        \
  85     fputs (SIZE == 8 ? "@rel64" : "@rel", FILE);        \
  86   } while (0)
  87 #endif
  88
  89 /* As in sol2.h, override the default from i386/x86-64.h to work around
  90    Sun as TLS bug.  */
  91 #undef  ASM_OUTPUT_ALIGNED_COMMON
  92 #define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN)              \
  93   do                                                                    \
  94     {                                                                   \
  95       if (TARGET_SUN_TLS                                                \
  96           && in_section                                                 \
  97           && ((in_section->common.flags & SECTION_TLS) == SECTION_TLS)) \
  98         switch_to_section (bss_section);                                \
  99       x86_elf_aligned_common (FILE, NAME, SIZE, ALIGN);                 \
 100     }                                                                   \
 101   while  (0)
 102
 103 #define USE_IX86_FRAME_POINTER 1
 104 #define USE_X86_64_FRAME_POINTER 1
 105
 106 #undef NO_PROFILE_COUNTERS
 107
 108 #undef MCOUNT_NAME
 109 #define MCOUNT_NAME "_mcount"