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9a57586f | 1 | /* Definitions of target machine for GNU compiler, |
88cad84b | 2 | for PowerPC machines running Linux. |
71625f3d | 3 | Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 |
c4db7ecb | 4 | 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 | |
11 | by the Free Software Foundation; either version 2, or (at your | |
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 NC |
19 | You should have received a copy of the GNU General Public License |
20 | along with GCC; see the file COPYING. If not, write to the | |
39d14dda KC |
21 | Free Software Foundation, 51 Franklin Street, Fifth Floor, Boston, |
22 | MA 02110-1301, USA. */ | |
9a57586f | 23 | |
bd227acc FS |
24 | #undef MD_EXEC_PREFIX |
25 | #undef MD_STARTFILE_PREFIX | |
26 | ||
bf276e5c AM |
27 | /* Linux doesn't support saving and restoring 64-bit regs in a 32-bit |
28 | process. */ | |
29 | #define OS_MISSING_POWERPC64 1 | |
30 | ||
71625f3d AM |
31 | /* We use glibc _mcount for profiling. */ |
32 | #define NO_PROFILE_COUNTERS 1 | |
33 | ||
bf276e5c AM |
34 | /* glibc has float and long double forms of math functions. */ |
35 | #undef TARGET_C99_FUNCTIONS | |
36 | #define TARGET_C99_FUNCTIONS 1 | |
37 | ||
5de601cf | 38 | #undef TARGET_OS_CPP_BUILTINS |
c4ad648e AM |
39 | #define TARGET_OS_CPP_BUILTINS() \ |
40 | do \ | |
41 | { \ | |
42 | builtin_define_std ("PPC"); \ | |
43 | builtin_define_std ("powerpc"); \ | |
44 | builtin_assert ("cpu=powerpc"); \ | |
45 | builtin_assert ("machine=powerpc"); \ | |
46 | TARGET_OS_SYSV_CPP_BUILTINS (); \ | |
47 | } \ | |
7990b46f | 48 | while (0) |
9a57586f | 49 | |
373107aa FS |
50 | #undef CPP_OS_DEFAULT_SPEC |
51 | #define CPP_OS_DEFAULT_SPEC "%(cpp_os_linux)" | |
52 | ||
437558e8 FS |
53 | /* The GNU C++ standard library currently requires _GNU_SOURCE being |
54 | defined on glibc-based systems. This temporary hack accomplishes this, | |
55 | it should go away as soon as libstdc++-v3 has a real fix. */ | |
5de601cf | 56 | #undef CPLUSPLUS_CPP_SPEC |
437558e8 FS |
57 | #define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)" |
58 | ||
5de601cf | 59 | #undef LINK_SHLIB_SPEC |
362c63a5 | 60 | #define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}}" |
9a57586f MM |
61 | |
62 | #undef LIB_DEFAULT_SPEC | |
0bc25b2b | 63 | #define LIB_DEFAULT_SPEC "%(lib_linux)" |
9a57586f MM |
64 | |
65 | #undef STARTFILE_DEFAULT_SPEC | |
0bc25b2b | 66 | #define STARTFILE_DEFAULT_SPEC "%(startfile_linux)" |
9a57586f MM |
67 | |
68 | #undef ENDFILE_DEFAULT_SPEC | |
0bc25b2b | 69 | #define ENDFILE_DEFAULT_SPEC "%(endfile_linux)" |
9a57586f | 70 | |
362c63a5 GK |
71 | #undef LINK_START_DEFAULT_SPEC |
72 | #define LINK_START_DEFAULT_SPEC "%(link_start_linux)" | |
73 | ||
74 | #undef LINK_OS_DEFAULT_SPEC | |
75 | #define LINK_OS_DEFAULT_SPEC "%(link_os_linux)" | |
76 | ||
42df2193 JJ |
77 | #define LINK_GCC_C_SEQUENCE_SPEC \ |
78 | "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}" | |
79 | ||
8efcd34f AM |
80 | /* Use --as-needed -lgcc_s for eh support. */ |
81 | #ifdef HAVE_LD_AS_NEEDED | |
82 | #define USE_LD_AS_NEEDED 1 | |
83 | #endif | |
84 | ||
5de601cf | 85 | #undef TARGET_VERSION |
956d6950 | 86 | #define TARGET_VERSION fprintf (stderr, " (PowerPC GNU/Linux)"); |
3807773b | 87 | |
832ea3b3 | 88 | /* Override rs6000.h definition. */ |
5de601cf | 89 | #undef ASM_APP_ON |
832ea3b3 FS |
90 | #define ASM_APP_ON "#APP\n" |
91 | ||
92 | /* Override rs6000.h definition. */ | |
5de601cf | 93 | #undef ASM_APP_OFF |
832ea3b3 FS |
94 | #define ASM_APP_OFF "#NO_APP\n" |
95 | ||
6fa3f289 ZW |
96 | /* For backward compatibility, we must continue to use the AIX |
97 | structure return convention. */ | |
5de601cf | 98 | #undef DRAFT_V4_STRUCT_RET |
6fa3f289 ZW |
99 | #define DRAFT_V4_STRUCT_RET 1 |
100 | ||
9739c90c JJ |
101 | /* We are 32-bit all the time, so optimize a little. */ |
102 | #undef TARGET_64BIT | |
103 | #define TARGET_64BIT 0 | |
104 | ||
84dcde01 AM |
105 | /* We don't need to generate entries in .fixup, except when |
106 | -mrelocatable or -mrelocatable-lib is given. */ | |
9739c90c | 107 | #undef RELOCATABLE_NEEDS_FIXUP |
84dcde01 AM |
108 | #define RELOCATABLE_NEEDS_FIXUP \ |
109 | (target_flags & target_flags_explicit & MASK_RELOCATABLE) | |
9739c90c | 110 | |
a5fe455b | 111 | #define TARGET_ASM_FILE_END file_end_indicate_exec_stack |
3edc56a9 | 112 | |
c2cd64b5 JJ |
113 | #define TARGET_HAS_F_SETLKW |
114 | ||
8662eb14 | 115 | #define MD_UNWIND_SUPPORT "config/rs6000/linux-unwind.h" |