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* configure.ac (gcc_cv_ld_sol2_emulation): Test for GNU ld *_sol2
[pf3gnuchains/gcc-fork.git] / gcc / config / i386 / sol2-10.h
1 /* Solaris 10 configuration.
2    Copyright (C) 2004, 2006, 2007, 2008, 2009, 2010
3    Free Software Foundation, Inc.
4    Contributed by CodeSourcery, LLC.
5
6 This file is part of GCC.
7
8 GCC is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3, or (at your option)
11 any later version.
12
13 GCC is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16 GNU General Public License for more details.
17
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING3.  If not see
20 <http://www.gnu.org/licenses/>.  */
21
22 #undef ASM_COMMENT_START
23 #define ASM_COMMENT_START "/"
24
25 /* binutils' GNU as understands --32 and --64, but the native Solaris
26    assembler requires -xarch=generic or -xarch=generic64 instead.  */
27 #undef ASM_SPEC
28 #ifdef USE_GAS
29 #define ASM_SPEC "%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} " \
30                  "%{Wa,*:%*} %{m32:--32} %{m64:--64} -s %(asm_cpu)"
31 #else
32 #define ASM_SPEC "%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} " \
33                  "%{Wa,*:%*} %{m32:-xarch=generic} %{m64:-xarch=generic64} " \
34                  "-s %(asm_cpu)"
35 #endif
36
37 /* The native Solaris assembler can't calculate the difference between
38    symbols in different sections, which causes problems for -fPIC jump
39    tables in .rodata.  */
40 #ifndef HAVE_AS_IX86_DIFF_SECT_DELTA
41 #undef JUMP_TABLES_IN_TEXT_SECTION
42 #define JUMP_TABLES_IN_TEXT_SECTION 1
43
44 /* The native Solaris assembler cannot handle the SYMBOL-. syntax, but
45    requires SYMBOL@rel/@rel64 instead.  */
46 #define ASM_OUTPUT_DWARF_PCREL(FILE, SIZE, LABEL)       \
47   do {                                                  \
48     fputs (integer_asm_op (SIZE, FALSE), FILE);         \
49     assemble_name (FILE, LABEL);                        \
50     fputs (SIZE == 8 ? "@rel64" : "@rel", FILE);        \
51   } while (0)
52 #endif
53
54 /* As in sol2.h, override the default from i386/x86-64.h to work around
55    Sun as TLS bug.  */
56 #undef  ASM_OUTPUT_ALIGNED_COMMON
57 #define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN)              \
58   do                                                                    \
59     {                                                                   \
60       if (TARGET_SUN_TLS                                                \
61           && in_section                                                 \
62           && ((in_section->common.flags & (SECTION_TLS | SECTION_BSS))  \
63               == (SECTION_TLS | SECTION_BSS)))                          \
64         switch_to_section (bss_section);                                \
65       x86_elf_aligned_common (FILE, NAME, SIZE, ALIGN);                 \
66     }                                                                   \
67   while  (0)
68
69 #undef NO_PROFILE_COUNTERS
70
71 #undef MCOUNT_NAME
72 #define MCOUNT_NAME "_mcount"
73
74 #undef WCHAR_TYPE
75 #define WCHAR_TYPE (TARGET_64BIT ? "int" : "long int")
76 #undef WCHAR_TYPE_SIZE
77 #define WCHAR_TYPE_SIZE 32
78
79 #undef WINT_TYPE
80 #define WINT_TYPE (TARGET_64BIT ? "int" : "long int")
81 #undef WINT_TYPE_SIZE
82 #define WINT_TYPE_SIZE 32
83
84 #define SUBTARGET_OVERRIDE_OPTIONS                              \
85   do                                                            \
86     {                                                           \
87       if (flag_omit_frame_pointer == 2)                         \
88         flag_omit_frame_pointer = 0;                            \
89     }                                                           \
90   while (0)
91
92 #undef TARGET_SUBTARGET_DEFAULT
93 #define TARGET_SUBTARGET_DEFAULT (MASK_80387 | MASK_IEEE_FP     \
94                                   | MASK_FLOAT_RETURNS)
95
96 #define SUBTARGET_OPTIMIZATION_OPTIONS                  \
97   do                                                    \
98     {                                                   \
99       if (optimize >= 1)                                \
100         target_flags |= MASK_OMIT_LEAF_FRAME_POINTER;   \
101     }                                                   \
102   while (0)
103
104 #define MULTILIB_DEFAULTS { "m32" }
105
106 #undef LINK_ARCH64_SPEC_BASE
107 #define LINK_ARCH64_SPEC_BASE \
108   "%{G:-G} \
109    %{YP,*} \
110    %{R*} \
111    %{compat-bsd: \
112      %{!YP,*:%{p|pg:-Y P,/usr/ucblib/64:/usr/lib/libp/64:/lib/64:/usr/lib/64} \
113              %{!p:%{!pg:-Y P,/usr/ucblib/64:/lib:/usr/lib/64}}} \
114              -R /usr/ucblib/64} \
115    %{!compat-bsd: \
116      %{!YP,*:%{p|pg:-Y P,/usr/lib/libp/64:/lib/64:/usr/lib/64} \
117              %{!p:%{!pg:-Y P,/lib/64:/usr/lib/64}}}}"
118
119 #undef LINK_ARCH64_SPEC
120 #define LINK_ARCH64_SPEC LINK_ARCH64_SPEC_BASE
121
122 #ifdef TARGET_GNU_LD
123 /* Since binutils 2.21, GNU ld supports new *_sol2 emulations to strictly
124    follow the Solaris 2 ABI.  Prefer them if present.  */
125 #ifdef HAVE_LD_SOL2_EMULATION
126 #define I386_EMULATION "elf_i386_sol2"
127 #define X86_64_EMULATION "elf_x86_64_sol2"
128 #else
129 #define I386_EMULATION "elf_i386"
130 #define X86_64_EMULATION "elf_x86_64"
131 #endif
132
133 #define TARGET_LD_EMULATION "%{m64:-m " X86_64_EMULATION "}" \
134                             "%{!m64:-m " I386_EMULATION "} "
135 #else
136 #define TARGET_LD_EMULATION ""
137 #endif
138
139 #undef LINK_ARCH_SPEC
140 #define LINK_ARCH_SPEC TARGET_LD_EMULATION \
141                        "%{m64:" LINK_ARCH64_SPEC "}%{!m64:" LINK_ARCH32_SPEC "}"
142
143 /* We do not need to search a special directory for startup files.  */
144 #undef MD_STARTFILE_PREFIX
145
146 #undef TARGET_ASM_NAMED_SECTION
147 #define TARGET_ASM_NAMED_SECTION i386_solaris_elf_named_section
148
149 #undef SUBTARGET_RETURN_IN_MEMORY
150 #define SUBTARGET_RETURN_IN_MEMORY(TYPE, FNTYPE) \
151         ix86_sol10_return_in_memory (TYPE, FNTYPE)