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Commit | Line | Data |
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9a57586f | 1 | /* Definitions of target machine for GNU compiler, |
88cad84b | 2 | for PowerPC machines running Linux. |
602ea4d3 | 3 | Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, |
2f83c7d6 | 4 | 2004, 2005, 2006, 2007 Free Software Foundation, Inc. |
9a57586f MM |
5 | Contributed by Michael Meissner (meissner@cygnus.com). |
6 | ||
5de601cf | 7 | This file is part of GCC. |
9a57586f | 8 | |
5de601cf NC |
9 | GCC is free software; you can redistribute it and/or modify it |
10 | under the terms of the GNU General Public License as published | |
2f83c7d6 | 11 | by the Free Software Foundation; either version 3, or (at your |
5de601cf | 12 | option) any later version. |
9a57586f | 13 | |
5de601cf NC |
14 | GCC is distributed in the hope that it will be useful, but WITHOUT |
15 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | |
16 | or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public | |
17 | License for more details. | |
9a57586f | 18 | |
5de601cf | 19 | You should have received a copy of the GNU General Public License |
2f83c7d6 NC |
20 | along with GCC; see the file COPYING3. If not see |
21 | <http://www.gnu.org/licenses/>. */ | |
9a57586f | 22 | |
bd227acc FS |
23 | #undef MD_EXEC_PREFIX |
24 | #undef MD_STARTFILE_PREFIX | |
25 | ||
bf276e5c AM |
26 | /* Linux doesn't support saving and restoring 64-bit regs in a 32-bit |
27 | process. */ | |
28 | #define OS_MISSING_POWERPC64 1 | |
29 | ||
71625f3d AM |
30 | /* We use glibc _mcount for profiling. */ |
31 | #define NO_PROFILE_COUNTERS 1 | |
32 | ||
47089d42 MK |
33 | #define OPTION_GLIBC (linux_libc == LIBC_GLIBC) |
34 | ||
bf276e5c AM |
35 | /* glibc has float and long double forms of math functions. */ |
36 | #undef TARGET_C99_FUNCTIONS | |
7bd85ce0 | 37 | #define TARGET_C99_FUNCTIONS (OPTION_GLIBC) |
bf276e5c | 38 | |
006339cd RG |
39 | /* Whether we have sincos that follows the GNU extension. */ |
40 | #undef TARGET_HAS_SINCOS | |
41 | #define TARGET_HAS_SINCOS (OPTION_GLIBC) | |
42 | ||
5de601cf | 43 | #undef TARGET_OS_CPP_BUILTINS |
c4ad648e AM |
44 | #define TARGET_OS_CPP_BUILTINS() \ |
45 | do \ | |
46 | { \ | |
47 | builtin_define_std ("PPC"); \ | |
48 | builtin_define_std ("powerpc"); \ | |
49 | builtin_assert ("cpu=powerpc"); \ | |
50 | builtin_assert ("machine=powerpc"); \ | |
51 | TARGET_OS_SYSV_CPP_BUILTINS (); \ | |
52 | } \ | |
7990b46f | 53 | while (0) |
9a57586f | 54 | |
373107aa FS |
55 | #undef CPP_OS_DEFAULT_SPEC |
56 | #define CPP_OS_DEFAULT_SPEC "%(cpp_os_linux)" | |
57 | ||
437558e8 FS |
58 | /* The GNU C++ standard library currently requires _GNU_SOURCE being |
59 | defined on glibc-based systems. This temporary hack accomplishes this, | |
60 | it should go away as soon as libstdc++-v3 has a real fix. */ | |
5de601cf | 61 | #undef CPLUSPLUS_CPP_SPEC |
437558e8 FS |
62 | #define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)" |
63 | ||
5de601cf | 64 | #undef LINK_SHLIB_SPEC |
362c63a5 | 65 | #define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}}" |
9a57586f MM |
66 | |
67 | #undef LIB_DEFAULT_SPEC | |
0bc25b2b | 68 | #define LIB_DEFAULT_SPEC "%(lib_linux)" |
9a57586f MM |
69 | |
70 | #undef STARTFILE_DEFAULT_SPEC | |
0bc25b2b | 71 | #define STARTFILE_DEFAULT_SPEC "%(startfile_linux)" |
9a57586f MM |
72 | |
73 | #undef ENDFILE_DEFAULT_SPEC | |
0bc25b2b | 74 | #define ENDFILE_DEFAULT_SPEC "%(endfile_linux)" |
9a57586f | 75 | |
362c63a5 GK |
76 | #undef LINK_START_DEFAULT_SPEC |
77 | #define LINK_START_DEFAULT_SPEC "%(link_start_linux)" | |
78 | ||
79 | #undef LINK_OS_DEFAULT_SPEC | |
80 | #define LINK_OS_DEFAULT_SPEC "%(link_os_linux)" | |
81 | ||
42df2193 JJ |
82 | #define LINK_GCC_C_SEQUENCE_SPEC \ |
83 | "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}" | |
84 | ||
8efcd34f AM |
85 | /* Use --as-needed -lgcc_s for eh support. */ |
86 | #ifdef HAVE_LD_AS_NEEDED | |
87 | #define USE_LD_AS_NEEDED 1 | |
88 | #endif | |
89 | ||
5de601cf | 90 | #undef TARGET_VERSION |
956d6950 | 91 | #define TARGET_VERSION fprintf (stderr, " (PowerPC GNU/Linux)"); |
3807773b | 92 | |
832ea3b3 | 93 | /* Override rs6000.h definition. */ |
5de601cf | 94 | #undef ASM_APP_ON |
832ea3b3 FS |
95 | #define ASM_APP_ON "#APP\n" |
96 | ||
97 | /* Override rs6000.h definition. */ | |
5de601cf | 98 | #undef ASM_APP_OFF |
832ea3b3 FS |
99 | #define ASM_APP_OFF "#NO_APP\n" |
100 | ||
6fa3f289 ZW |
101 | /* For backward compatibility, we must continue to use the AIX |
102 | structure return convention. */ | |
5de601cf | 103 | #undef DRAFT_V4_STRUCT_RET |
6fa3f289 ZW |
104 | #define DRAFT_V4_STRUCT_RET 1 |
105 | ||
9739c90c JJ |
106 | /* We are 32-bit all the time, so optimize a little. */ |
107 | #undef TARGET_64BIT | |
108 | #define TARGET_64BIT 0 | |
109 | ||
84dcde01 AM |
110 | /* We don't need to generate entries in .fixup, except when |
111 | -mrelocatable or -mrelocatable-lib is given. */ | |
9739c90c | 112 | #undef RELOCATABLE_NEEDS_FIXUP |
84dcde01 AM |
113 | #define RELOCATABLE_NEEDS_FIXUP \ |
114 | (target_flags & target_flags_explicit & MASK_RELOCATABLE) | |
9739c90c | 115 | |
a5fe455b | 116 | #define TARGET_ASM_FILE_END file_end_indicate_exec_stack |
3edc56a9 | 117 | |
4969c0d8 | 118 | #define TARGET_POSIX_IO |
c2cd64b5 | 119 | |
8662eb14 | 120 | #define MD_UNWIND_SUPPORT "config/rs6000/linux-unwind.h" |
77008252 JJ |
121 | |
122 | #ifdef TARGET_LIBC_PROVIDES_SSP | |
123 | /* ppc32 glibc provides __stack_chk_guard in -0x7008(2). */ | |
124 | #define TARGET_THREAD_SSP_OFFSET -0x7008 | |
125 | #endif | |
602ea4d3 JJ |
126 | |
127 | #define POWERPC_LINUX | |
ed965309 JJ |
128 | |
129 | /* ppc linux has 128-bit long double support in glibc 2.4 and later. */ | |
130 | #ifdef TARGET_DEFAULT_LONG_DOUBLE_128 | |
131 | #define RS6000_DEFAULT_LONG_DOUBLE_SIZE 128 | |
132 | #endif |