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
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
llvm-symbolizer - convert addresses into source code locations
==============================================================
SYNOPSIS
--------
:program:`llvm-symbolizer` [options]
DESCRIPTION
-----------
:program:`llvm-symbolizer` reads object file names and addresses from standard
input and prints corresponding source code locations to standard output.
If object file is specified in command line, :program:`llvm-symbolizer`
processes only addresses from standard input, the rest is output verbatim.
This program uses debug info sections and symbol table in the object files.
EXAMPLE
--------
.. code-block:: console
$ cat addr.txt
a.out 0x4004f4
/tmp/b.out 0x400528
/tmp/c.so 0x710
/tmp/mach_universal_binary:i386 0x1f84
/tmp/mach_universal_binary:x86_64 0x100000f24
$ llvm-symbolizer < addr.txt
main
/tmp/a.cc:4
f(int, int)
/tmp/b.cc:11
h_inlined_into_g
/tmp/header.h:2
g_inlined_into_f
/tmp/header.h:7
f_inlined_into_main
/tmp/source.cc:3
main
/tmp/source.cc:8
_main
/tmp/source_i386.cc:8
_main
/tmp/source_x86_64.cc:8
$ cat addr2.txt
0x4004f4
0x401000
$ llvm-symbolizer -obj=a.out < addr2.txt
main
/tmp/a.cc:4
foo(int)
/tmp/a.cc:12
$cat addr.txt
0x40054d
$llvm-symbolizer -inlining -print-address -pretty-print -obj=addr.exe < addr.txt
0x40054d: inc at /tmp/x.c:3:3
(inlined by) main at /tmp/x.c:9:0
$llvm-symbolizer -inlining -pretty-print -obj=addr.exe < addr.txt
inc at /tmp/x.c:3:3
(inlined by) main at /tmp/x.c:9:0
OPTIONS
-------
.. option:: -obj, -exe, -e
Path to object file to be symbolized.
.. _llvm-symbolizer-opt-f:
.. option:: -functions [<none|short|linkage>], -f
Specify the way function names are printed (omit function name,
print short function name, or print full linkage name, respectively).
Defaults to ``linkage``.
.. _llvm-symbolizer-opt-use-symbol-table:
.. option:: -use-symbol-table
Prefer function names stored in symbol table to function names
in debug info sections. Defaults to true.
.. _llvm-symbolizer-opt-C:
.. option:: -demangle, -C
Print demangled function names. Defaults to true.
.. option:: -no-demangle
Don't print demangled function names.
.. _llvm-symbolizer-opt-i:
.. option:: -inlining, -inlines, -i
If a source code location is in an inlined function, prints all the
inlined frames. Defaults to true.
.. option:: -default-arch
If a binary contains object files for multiple architectures (e.g. it is a
Mach-O universal binary), symbolize the object file for a given architecture.
You can also specify architecture by writing ``binary_name:arch_name`` in the
input (see example above). If architecture is not specified in either way,
address will not be symbolized. Defaults to empty string.
.. option:: -dsym-hint <path/to/file.dSYM>
(Darwin-only flag). If the debug info for a binary isn't present in the default
location, look for the debug info at the .dSYM path provided via the
``-dsym-hint`` flag. This flag can be used multiple times.
.. option:: -print-address, -addresses, -a
Print address before the source code location. Defaults to false.
.. option:: -pretty-print, -p
Print human readable output. If ``-inlining`` is specified, enclosing scope is
prefixed by (inlined by). Refer to listed examples.
.. option:: -basenames, -s
Strip directories when printing the file path.
.. option:: -adjust-vma <offset>
Add the specified offset to object file addresses when performing lookups. This
can be used to perform lookups as if the object were relocated by the offset.
.. _llvm-symbolizer-opt-output-style:
.. option:: -output-style <LLVM|GNU>
Specify the preferred output style. Defaults to ``LLVM``. When the output
style is set to ``GNU``, the tool follows the style of GNU's **addr2line**.
The differences from the ``LLVM`` style are:
* Does not print column of a source code location.
* Does not add an empty line after the report for an address.
* Does not replace the name of an inlined function with the name of the
topmost caller when inlined frames are not shown and ``-use-symbol-table``
is on.
.. code-block:: console
$ llvm-symbolizer -p -e=addr.exe 0x40054d 0x400568
inc at /tmp/x.c:3:3
(inlined by) main at /tmp/x.c:14:0
main at /tmp/x.c:14:3
$ llvm-symbolizer --output-style=LLVM -p -i=0 -e=addr.exe 0x40054d 0x400568
main at /tmp/x.c:3:3
main at /tmp/x.c:14:3
$ llvm-symbolizer --output-style=GNU -p -i=0 -e=addr.exe 0x40054d 0x400568
inc at /tmp/x.c:3
main at /tmp/x.c:14
EXIT STATUS
-----------
:program:`llvm-symbolizer` returns 0. Other exit codes imply an internal program
error.
|
