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Merge pull request #232 from G10h4ck/master

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print_stacktrace is OS specific
This commit is contained in:
Cyril Soler 2015-12-31 19:42:50 -05:00
commit d24ff5a4d1
1 changed files with 96 additions and 67 deletions
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65
libretroshare/src/util/stacktrace.h
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@ -1,10 +1,32 @@
// stacktrace.h (c) 2008, Timo Bingmann from http://idlebox.net/ /*
// published under the WTFPL v2.0 * stacktrace.h
*
* Copyright (C) 2016 Gioacchino Mazzurco <gio@eigenlab.org>
* Copyright (C) 2008 Timo Bingmann http://idlebox.net/
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License Version 2 as published by the Free Software Foundation.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA.
*
*/
#ifndef _STACKTRACE_H_ #ifndef _STACKTRACE_H_
#define _STACKTRACE_H_ #define _STACKTRACE_H_
#include <stdio.h> #include <stdio.h>
#ifndef WINDOWS_SYS
#include <stdlib.h> #include <stdlib.h>
#include <execinfo.h> #include <execinfo.h>
#include <cxxabi.h> #include <cxxabi.h>
@ -20,7 +42,8 @@ static inline void print_stacktrace(FILE *out = stderr, unsigned int max_frames
// retrieve current stack addresses // retrieve current stack addresses
int addrlen = backtrace(addrlist, sizeof(addrlist) / sizeof(void*)); int addrlen = backtrace(addrlist, sizeof(addrlist) / sizeof(void*));
if (addrlen == 0) { if (addrlen == 0)
{
fprintf(out, " <empty, possibly corrupt>\n"); fprintf(out, " <empty, possibly corrupt>\n");
return; return;
} }
@ -43,18 +66,16 @@ static inline void print_stacktrace(FILE *out = stderr, unsigned int max_frames
// ./module(function+0x15c) [0x8048a6d] // ./module(function+0x15c) [0x8048a6d]
for (char *p = symbollist[i]; *p; ++p) for (char *p = symbollist[i]; *p; ++p)
{ {
if (*p == '(') if (*p == '(') begin_name = p;
begin_name = p; else if (*p == '+') begin_offset = p;
else if (*p == '+') else if (*p == ')' && begin_offset)
begin_offset = p; {
else if (*p == ')' && begin_offset) {
end_offset = p; end_offset = p;
break; break;
} }
} }
if (begin_name && begin_offset && end_offset if (begin_name && begin_offset && end_offset && begin_name < begin_offset)
&& begin_name < begin_offset)
{ {
*begin_name++ = '\0'; *begin_name++ = '\0';
*begin_offset++ = '\0'; *begin_offset++ = '\0';
@ -65,18 +86,17 @@ static inline void print_stacktrace(FILE *out = stderr, unsigned int max_frames
// __cxa_demangle(): // __cxa_demangle():
int status; int status;
char* ret = abi::__cxa_demangle(begin_name, char* ret = abi::__cxa_demangle(begin_name, funcname, &funcnamesize, &status);
funcname, &funcnamesize, &status); if (status == 0)
if (status == 0) { {
funcname = ret; // use possibly realloc()-ed string funcname = ret; // use possibly realloc()-ed string
fprintf(out, " %s : %s+%s\n", fprintf(out, " %s : %s+%s\n", symbollist[i], funcname, begin_offset);
symbollist[i], funcname, begin_offset);
} }
else { else
{
// demangling failed. Output function name as a C function with // demangling failed. Output function name as a C function with
// no arguments. // no arguments.
fprintf(out, " %s : %s()+%s\n", fprintf(out, " %s : %s()+%s\n", symbollist[i], begin_name, begin_offset);
symbollist[i], begin_name, begin_offset);
} }
} }
else else
@ -90,4 +110,13 @@ static inline void print_stacktrace(FILE *out = stderr, unsigned int max_frames
free(symbollist); free(symbollist);
} }
#else // WINDOWS_SYS
static inline void print_stacktrace(FILE *out = stderr, unsigned int max_frames = 63)
{
(void) max_frames;
fprintf(out, "TODO: 2016/01/01 print_stacktrace not implemented yet for WINDOWS_SYS\n");
}
#endif // WINDOWS_SYS
#endif // _STACKTRACE_H_ #endif // _STACKTRACE_H_