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https://github.com/FWGS/xash3d-fwgs.git
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50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
/*
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crash_glibc.c - advanced crashhandler based on glibc's execinfo API
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Copyright (C) 2016 Mittorn
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Copyright (C) 2025 Alibek Omarov
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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*/
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// on Glibc (which potentially might not be only Linux) systems we
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// have backtrace() and backtrace_symbols() calls, which replace for us
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// platform-specific code
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#if HAVE_EXECINFO
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#include <execinfo.h>
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#include <signal.h>
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#include "common.h"
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#include "input.h"
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#include "crash.h"
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int Sys_CrashDetailsExecinfo( int logfd, char *message, int len, size_t max_len )
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{
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void *addrs[16];
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int size = backtrace( addrs, sizeof( addrs ) / sizeof( addrs[0] ));
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char **syms = backtrace_symbols( addrs, size );
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for( int i = 0; i < size && syms; i++ )
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{
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size_t symlen = Q_strlen( syms[i] );
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char ch = '\n';
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write( logfd, syms[i], symlen );
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write( logfd, &ch, 1 );
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write( STDERR_FILENO, syms[i], symlen );
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write( STDERR_FILENO, &ch, 1 );
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len += Q_snprintf( message + len, max_len - len, "%2d: %s\n", i, syms[i] );
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}
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return len;
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}
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#endif // HAVE_EXECINFO
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