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comparison libunwind/src/config.h @ 207:2e18cbf3894f

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LLVM12
author Shinji KONO <kono@ie.u-ryukyu.ac.jp>
date Tue, 08 Jun 2021 06:07:14 +0900
parents 0572611fdcc8
children c4bab56944e8
comparison
equal deleted inserted replaced
173:0572611fdcc8 207:2e18cbf3894f
16 #include <assert.h> 16 #include <assert.h>
17 #include <stdio.h> 17 #include <stdio.h>
18 #include <stdint.h> 18 #include <stdint.h>
19 #include <stdlib.h> 19 #include <stdlib.h>
20 20
21 // Define static_assert() unless already defined by compiler. 21 #include <__libunwind_config.h>
22 #ifndef __has_feature
23 #define __has_feature(__x) 0
24 #endif
25 #if !(__has_feature(cxx_static_assert)) && !defined(static_assert)
26 #define static_assert(__b, __m) \
27 extern int compile_time_assert_failed[ ( __b ) ? 1 : -1 ] \
28 __attribute__( ( unused ) );
29 #endif
30 22
31 // Platform specific configuration defines. 23 // Platform specific configuration defines.
32 #ifdef __APPLE__ 24 #ifdef __APPLE__
33 #if defined(FOR_DYLD) 25 #if defined(FOR_DYLD)
34 #define _LIBUNWIND_SUPPORT_COMPACT_UNWIND 26 #define _LIBUNWIND_SUPPORT_COMPACT_UNWIND 1
35 #else 27 #else
36 #define _LIBUNWIND_SUPPORT_COMPACT_UNWIND 28 #define _LIBUNWIND_SUPPORT_COMPACT_UNWIND 1
37 #define _LIBUNWIND_SUPPORT_DWARF_UNWIND 1 29 #define _LIBUNWIND_SUPPORT_DWARF_UNWIND 1
38 #endif 30 #endif
39 #elif defined(_WIN32) 31 #elif defined(_WIN32)
40 #ifdef __SEH__ 32 #ifdef __SEH__
41 #define _LIBUNWIND_SUPPORT_SEH_UNWIND 1 33 #define _LIBUNWIND_SUPPORT_SEH_UNWIND 1
42 #else 34 #else
43 #define _LIBUNWIND_SUPPORT_DWARF_UNWIND 1 35 #define _LIBUNWIND_SUPPORT_DWARF_UNWIND 1
44 #endif 36 #endif
45 #else 37 #elif defined(_LIBUNWIND_IS_BAREMETAL)
46 #if defined(__ARM_DWARF_EH__) || !defined(__arm__) 38 #if !defined(_LIBUNWIND_ARM_EHABI)
47 #define _LIBUNWIND_SUPPORT_DWARF_UNWIND 1 39 #define _LIBUNWIND_SUPPORT_DWARF_UNWIND 1
48 #define _LIBUNWIND_SUPPORT_DWARF_INDEX 1 40 #define _LIBUNWIND_SUPPORT_DWARF_INDEX 1
49 #endif 41 #endif
50 #endif 42 #elif defined(__BIONIC__) && defined(_LIBUNWIND_ARM_EHABI)
51 43 // For ARM EHABI, Bionic didn't implement dl_iterate_phdr until API 21. After
52 #if defined(_LIBUNWIND_DISABLE_VISIBILITY_ANNOTATIONS) 44 // API 21, dl_iterate_phdr exists, but dl_unwind_find_exidx is much faster.
45 #define _LIBUNWIND_USE_DL_UNWIND_FIND_EXIDX 1
46 #else
47 // Assume an ELF system with a dl_iterate_phdr function.
48 #define _LIBUNWIND_USE_DL_ITERATE_PHDR 1
49 #if !defined(_LIBUNWIND_ARM_EHABI)
50 #define _LIBUNWIND_SUPPORT_DWARF_UNWIND 1
51 #define _LIBUNWIND_SUPPORT_DWARF_INDEX 1
52 #endif
53 #endif
54
55 #if defined(_LIBUNWIND_HIDE_SYMBOLS)
56 // The CMake file passes -fvisibility=hidden to control ELF/Mach-O visibility.
53 #define _LIBUNWIND_EXPORT 57 #define _LIBUNWIND_EXPORT
54 #define _LIBUNWIND_HIDDEN 58 #define _LIBUNWIND_HIDDEN
55 #else 59 #else
56 #if !defined(__ELF__) && !defined(__MACH__) 60 #if !defined(__ELF__) && !defined(__MACH__)
57 #define _LIBUNWIND_EXPORT __declspec(dllexport) 61 #define _LIBUNWIND_EXPORT __declspec(dllexport)
65 #define STR(a) #a 69 #define STR(a) #a
66 #define XSTR(a) STR(a) 70 #define XSTR(a) STR(a)
67 #define SYMBOL_NAME(name) XSTR(__USER_LABEL_PREFIX__) #name 71 #define SYMBOL_NAME(name) XSTR(__USER_LABEL_PREFIX__) #name
68 72
69 #if defined(__APPLE__) 73 #if defined(__APPLE__)
74 #if defined(_LIBUNWIND_HIDE_SYMBOLS)
75 #define _LIBUNWIND_ALIAS_VISIBILITY(name) __asm__(".private_extern " name);
76 #else
77 #define _LIBUNWIND_ALIAS_VISIBILITY(name)
78 #endif
70 #define _LIBUNWIND_WEAK_ALIAS(name, aliasname) \ 79 #define _LIBUNWIND_WEAK_ALIAS(name, aliasname) \
71 __asm__(".globl " SYMBOL_NAME(aliasname)); \ 80 __asm__(".globl " SYMBOL_NAME(aliasname)); \
72 __asm__(SYMBOL_NAME(aliasname) " = " SYMBOL_NAME(name)); \ 81 __asm__(SYMBOL_NAME(aliasname) " = " SYMBOL_NAME(name)); \
73 extern "C" _LIBUNWIND_EXPORT __typeof(name) aliasname \ 82 _LIBUNWIND_ALIAS_VISIBILITY(SYMBOL_NAME(aliasname))
74 __attribute__((weak_import));
75 #elif defined(__ELF__) 83 #elif defined(__ELF__)
76 #define _LIBUNWIND_WEAK_ALIAS(name, aliasname) \ 84 #define _LIBUNWIND_WEAK_ALIAS(name, aliasname) \
77 extern "C" _LIBUNWIND_EXPORT __typeof(name) aliasname \ 85 extern "C" _LIBUNWIND_EXPORT __typeof(name) aliasname \
78 __attribute__((weak, alias(#name))); 86 __attribute__((weak, alias(#name)));
79 #elif defined(_WIN32) 87 #elif defined(_WIN32)
89 #endif 97 #endif
90 #else 98 #else
91 #error Unsupported target 99 #error Unsupported target
92 #endif 100 #endif
93 101
102 // Apple/armv7k defaults to DWARF/Compact unwinding, but its libunwind also
103 // needs to include the SJLJ APIs.
94 #if (defined(__APPLE__) && defined(__arm__)) || defined(__USING_SJLJ_EXCEPTIONS__) 104 #if (defined(__APPLE__) && defined(__arm__)) || defined(__USING_SJLJ_EXCEPTIONS__)
95 #define _LIBUNWIND_BUILD_SJLJ_APIS 105 #define _LIBUNWIND_BUILD_SJLJ_APIS
96 #endif 106 #endif
97 107
98 #if defined(__i386__) || defined(__x86_64__) || defined(__ppc__) || defined(__ppc64__) || defined(__powerpc64__) 108 #if defined(__i386__) || defined(__x86_64__) || defined(__ppc__) || defined(__ppc64__) || defined(__powerpc64__)
109 #if !defined(_LIBUNWIND_BUILD_SJLJ_APIS) 119 #if !defined(_LIBUNWIND_BUILD_SJLJ_APIS)
110 #define _LIBUNWIND_BUILD_ZERO_COST_APIS 120 #define _LIBUNWIND_BUILD_ZERO_COST_APIS
111 #endif 121 #endif
112 #endif 122 #endif
113 123
114 #if defined(__powerpc64__) && defined(_ARCH_PWR8) 124 #ifndef _LIBUNWIND_REMEMBER_HEAP_ALLOC
115 #define PPC64_HAS_VMX 125 #if defined(_LIBUNWIND_REMEMBER_STACK_ALLOC) || defined(__APPLE__) || \
126 defined(__linux__) || defined(__ANDROID__) || defined(__MINGW32__) || \
127 defined(_LIBUNWIND_IS_BAREMETAL)
128 #define _LIBUNWIND_REMEMBER_ALLOC(_size) alloca(_size)
129 #define _LIBUNWIND_REMEMBER_FREE(_ptr) \
130 do { \
131 } while (0)
132 #elif defined(_WIN32)
133 #define _LIBUNWIND_REMEMBER_ALLOC(_size) _malloca(_size)
134 #define _LIBUNWIND_REMEMBER_FREE(_ptr) _freea(_ptr)
135 #define _LIBUNWIND_REMEMBER_CLEANUP_NEEDED
136 #else
137 #define _LIBUNWIND_REMEMBER_ALLOC(_size) malloc(_size)
138 #define _LIBUNWIND_REMEMBER_FREE(_ptr) free(_ptr)
139 #define _LIBUNWIND_REMEMBER_CLEANUP_NEEDED
140 #endif
141 #else /* _LIBUNWIND_REMEMBER_HEAP_ALLOC */
142 #define _LIBUNWIND_REMEMBER_ALLOC(_size) malloc(_size)
143 #define _LIBUNWIND_REMEMBER_FREE(_ptr) free(_ptr)
144 #define _LIBUNWIND_REMEMBER_CLEANUP_NEEDED
116 #endif 145 #endif
117 146
118 #if defined(NDEBUG) && defined(_LIBUNWIND_IS_BAREMETAL) 147 #if defined(NDEBUG) && defined(_LIBUNWIND_IS_BAREMETAL)
119 #define _LIBUNWIND_ABORT(msg) \ 148 #define _LIBUNWIND_ABORT(msg) \
120 do { \ 149 do { \