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
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
// This file is #include from backtrace.c
#include <dlfcn.h>
#include <pthread.h>
#include <setjmp.h>
#include <stdio.h>
#include <sys/frame.h>
#if defined(SPARC)
#if defined IS_LP64
#define FRAME_PTR_OFFSET 1
#define FRAME_OFFSET 0
#define STACK_BIAS 0x7ff
#else
#define FRAME_PTR_OFFSET 1
#define FRAME_OFFSET 0
#define STACK_BIAS 0
#endif
#elif defined( INTEL )
#define FRAME_PTR_OFFSET 3
#define FRAME_OFFSET 0
#define STACK_BIAS 0
#else
#error Unknown Solaris target platform.
#endif /* defined SPARC or INTEL */
int backtrace( void **buffer, int max_frames )
{
jmp_buf ctx;
long fpval;
struct frame *fp;
int i;
/* flush register windows */
#ifdef SPARC
asm("ta 3");
#endif
/* get stack- and framepointer */
setjmp(ctx);
fpval = ((long*)(ctx))[FRAME_PTR_OFFSET];
fp = (struct frame*)((char*)(fpval) + STACK_BIAS);
for (i = 0; (i < FRAME_OFFSET) && (fp != 0); i++)
fp = (struct frame*)((char*)(fp->fr_savfp) + STACK_BIAS);
/* iterate through backtrace */
for (i = 0; (fp != 0) && (fp->fr_savpc != 0) && (i < max_frames); i++)
{
/* saved (prev) frame */
struct frame * prev = (struct frame*)((char*)(fp->fr_savfp) + STACK_BIAS);
/* store frame */
*(buffer++) = (void*)(fp->fr_savpc);
/* prev frame (w/ stack growing top down) */
fp = (prev > fp) ? prev : 0;
}
/* return number of frames stored */
return i;
}
char ** backtrace_symbols(void * const * buffer, int size)
{
(void)buffer; (void)size;
return NULL; /*TODO*/
}
void backtrace_symbols_fd( void **buffer, int size, int fd )
{
FILE *fp = fdopen( fd, "w" );
if ( fp )
{
void **pFramePtr;
for ( pFramePtr = buffer; size > 0 && pFramePtr && *pFramePtr; pFramePtr++, size-- )
{
Dl_info dli;
ptrdiff_t offset;
if ( 0 != dladdr( *pFramePtr, &dli ) )
{
if ( dli.dli_fname && dli.dli_fbase )
{
offset = (ptrdiff_t)*pFramePtr - (ptrdiff_t)dli.dli_fbase;
fprintf( fp, "%s+0x%" SAL_PRI_PTRDIFFT "x", dli.dli_fname, offset );
}
if ( dli.dli_sname && dli.dli_saddr )
{
offset = (ptrdiff_t)*pFramePtr - (ptrdiff_t)dli.dli_saddr;
fprintf( fp, "(%s+0x%" SAL_PRI_PTRDIFFT "x)", dli.dli_sname, offset );
}
}
fprintf( fp, "[%p]\n", *pFramePtr );
}
fclose( fp );
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
