Differences From Artifact [122354a46f]:
- File src/exceptions/OFException.m — part of check-in [41716f97ed] at 2013-05-08 20:15:56 on branch trunk — Add -[OFException backtrace]. (user: js, size: 2167) [annotate] [blame] [check-ins using]
To Artifact [18d7beaf46]:
- File
src/exceptions/OFException.m
— part of check-in
[a889f21180]
at
2013-05-22 20:36:31
on branch trunk
— Don't depened on execinfo.h for backtraces.
Instead, __builtin_return_address() is used now. This makes backtraces
available on many platforms, it even works if dladdr is missing (it does
not show symbol names then, though). (user: js, size: 3039) [annotate] [blame] [check-ins using]
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14 15 16 17 18 19 20 | * file. */ #include "config.h" #include <stdlib.h> | | | | 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | * file. */ #include "config.h" #include <stdlib.h> #ifdef HAVE_DLFCN_H # include <dlfcn.h> #endif #import "OFException.h" #import "OFString.h" #import "OFArray.h" #import "autorelease.h" |
| ︙ | ︙ | |||
47 48 49 50 51 52 53 |
}
- initWithClass: (Class)class
{
self = [super init];
_inClass = class;
| | > > > > > > > > > | < > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > < < < < < < < | | > > < | | < | > > < < | > > | | < | | > | | < > | | < | < < | > | | | 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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 |
}
- initWithClass: (Class)class
{
self = [super init];
_inClass = class;
#ifdef HAVE_BUILTIN_RETURN_ADDRESS
/*
* We can't use a loop here, as __builtin_return_address() and
* __builtin_frame_address() only allow a constant as parameter.
*/
# define GET_FRAME(i) \
if (__builtin_frame_address(i + 1) == NULL) \
goto backtrace_done; \
if ((_returnAddresses[i] = ( \
__builtin_return_address(i))) == NULL) \
goto backtrace_done;
GET_FRAME(0)
GET_FRAME(1)
GET_FRAME(2)
GET_FRAME(3)
GET_FRAME(4)
GET_FRAME(5)
GET_FRAME(6)
GET_FRAME(7)
GET_FRAME(8)
GET_FRAME(9)
GET_FRAME(10)
GET_FRAME(11)
GET_FRAME(12)
GET_FRAME(13)
GET_FRAME(14)
GET_FRAME(15)
GET_FRAME(16)
GET_FRAME(17)
GET_FRAME(18)
GET_FRAME(19)
GET_FRAME(20)
GET_FRAME(21)
GET_FRAME(22)
GET_FRAME(23)
GET_FRAME(24)
GET_FRAME(25)
GET_FRAME(26)
GET_FRAME(27)
GET_FRAME(28)
GET_FRAME(29)
GET_FRAME(30)
GET_FRAME(31)
# undef GET_FRAME
backtrace_done:
#endif
return self;
}
- (Class)inClass
{
return _inClass;
}
- (OFString*)description
{
return [OFString stringWithFormat:
@"An exception of class %@ occurred in class %@!",
object_getClass(self), _inClass];
}
- (OFArray*)backtrace
{
#ifdef HAVE_BUILTIN_RETURN_ADDRESS
OFMutableArray *backtrace = [OFMutableArray array];
void *pool = objc_autoreleasePoolPush();
uint_fast8_t i;
for (i = 0; i < 32 && _returnAddresses[i] != NULL; i++) {
void *addr =
__builtin_extract_return_addr(_returnAddresses[i]);
# ifdef HAVE_DLFCN_H
Dl_info info;
if (dladdr(addr, &info)) {
ptrdiff_t offset = (char*)addr - (char*)info.dli_saddr;
if (info.dli_sname == NULL)
info.dli_sname = "??";
[backtrace addObject:
[OFString stringWithFormat: @"%p <%s+%td> at %s",
addr, info.dli_sname,
offset,
info.dli_fname]];
} else
# endif
[backtrace addObject:
[OFString stringWithFormat: @"%p", addr]];
}
objc_autoreleasePoolPop(pool);
[backtrace makeImmutable];
return backtrace;
#else
return nil;
#endif
}
@end
|