blob: c899f9dd4d2c137f868145525cac2d25e21410e4 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
|
/* Definitions of target machine for GNU compiler,
for PowerPC machines running Linux.
Copyright (C) 1996-2018 Free Software Foundation, Inc.
Contributed by Michael Meissner (meissner@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/>. */
/* Linux doesn't support saving and restoring 64-bit regs in a 32-bit
process. */
#define OS_MISSING_POWERPC64 1
/* We use glibc _mcount for profiling. */
#define NO_PROFILE_COUNTERS 1
#ifdef SINGLE_LIBC
#define OPTION_GLIBC (DEFAULT_LIBC == LIBC_GLIBC)
#define OPTION_UCLIBC (DEFAULT_LIBC == LIBC_UCLIBC)
#define OPTION_BIONIC (DEFAULT_LIBC == LIBC_BIONIC)
#undef OPTION_MUSL
#define OPTION_MUSL (DEFAULT_LIBC == LIBC_MUSL)
#else
#define OPTION_GLIBC (linux_libc == LIBC_GLIBC)
#define OPTION_UCLIBC (linux_libc == LIBC_UCLIBC)
#define OPTION_BIONIC (linux_libc == LIBC_BIONIC)
#undef OPTION_MUSL
#define OPTION_MUSL (linux_libc == LIBC_MUSL)
#endif
/* Determine what functions are present at the runtime;
this includes full c99 runtime and sincos. */
#undef TARGET_LIBC_HAS_FUNCTION
#define TARGET_LIBC_HAS_FUNCTION linux_libc_has_function
#undef TARGET_OS_CPP_BUILTINS
#define TARGET_OS_CPP_BUILTINS() \
do \
{ \
builtin_define_std ("PPC"); \
builtin_define_std ("powerpc"); \
builtin_assert ("cpu=powerpc"); \
builtin_assert ("machine=powerpc"); \
TARGET_OS_SYSV_CPP_BUILTINS (); \
} \
while (0)
#undef CPP_OS_DEFAULT_SPEC
#define CPP_OS_DEFAULT_SPEC "%(cpp_os_linux)"
#undef LINK_SHLIB_SPEC
#define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}}"
#undef LIB_DEFAULT_SPEC
#define LIB_DEFAULT_SPEC "%(lib_linux)"
#undef STARTFILE_DEFAULT_SPEC
#define STARTFILE_DEFAULT_SPEC "%(startfile_linux)"
#undef ENDFILE_DEFAULT_SPEC
#define ENDFILE_DEFAULT_SPEC "%(endfile_linux)"
#undef LINK_START_DEFAULT_SPEC
#define LINK_START_DEFAULT_SPEC "%(link_start_linux)"
#undef LINK_OS_DEFAULT_SPEC
#define LINK_OS_DEFAULT_SPEC "%(link_os_linux)"
#undef DEFAULT_ASM_ENDIAN
#if (TARGET_DEFAULT & MASK_LITTLE_ENDIAN)
#define DEFAULT_ASM_ENDIAN " -mlittle"
#define LINK_OS_LINUX_EMUL ENDIAN_SELECT(" -m elf32ppclinux", \
" -m elf32lppclinux", \
" -m elf32lppclinux")
#else
#define DEFAULT_ASM_ENDIAN " -mbig"
#define LINK_OS_LINUX_EMUL ENDIAN_SELECT(" -m elf32ppclinux", \
" -m elf32lppclinux", \
" -m elf32ppclinux")
#endif
#undef LINK_OS_LINUX_SPEC
#define LINK_OS_LINUX_SPEC LINK_OS_LINUX_EMUL " %{!shared: %{!static: \
%{rdynamic:-export-dynamic} \
-dynamic-linker " GNU_USER_DYNAMIC_LINKER "}}"
/* For backward compatibility, we must continue to use the AIX
structure return convention. */
#undef DRAFT_V4_STRUCT_RET
#define DRAFT_V4_STRUCT_RET 1
/* We are 32-bit all the time, so optimize a little. */
#undef TARGET_64BIT
#define TARGET_64BIT 0
/* We don't need to generate entries in .fixup, except when
-mrelocatable or -mrelocatable-lib is given. */
#undef RELOCATABLE_NEEDS_FIXUP
#define RELOCATABLE_NEEDS_FIXUP \
(rs6000_isa_flags & rs6000_isa_flags_explicit & OPTION_MASK_RELOCATABLE)
#ifdef TARGET_LIBC_PROVIDES_SSP
/* ppc32 glibc provides __stack_chk_guard in -0x7008(2). */
#define TARGET_THREAD_SSP_OFFSET -0x7008
#endif
#define POWERPC_LINUX
/* ppc linux has 128-bit long double support in glibc 2.4 and later. */
#ifdef TARGET_DEFAULT_LONG_DOUBLE_128
#define RS6000_DEFAULT_LONG_DOUBLE_SIZE 128
#endif
/* Static stack checking is supported by means of probes. */
#define STACK_CHECK_STATIC_BUILTIN 1
/* Software floating point support for exceptions and rounding modes
depends on the C library in use. */
#undef TARGET_FLOAT_EXCEPTIONS_ROUNDING_SUPPORTED_P
#define TARGET_FLOAT_EXCEPTIONS_ROUNDING_SUPPORTED_P \
rs6000_linux_float_exceptions_rounding_supported_p
/* Support for TARGET_ATOMIC_ASSIGN_EXPAND_FENV without FPRs depends
on glibc 2.19 or greater. */
#if TARGET_GLIBC_MAJOR > 2 \
|| (TARGET_GLIBC_MAJOR == 2 && TARGET_GLIBC_MINOR >= 19)
#define RS6000_GLIBC_ATOMIC_FENV 1
#endif
|
