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Cleanup

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This commit is contained in:
Steve Checkoway
2006-01-09 02:10:14 +00:00
parent 7858052c43
commit e7943393b9
1 changed files with 112 additions and 107 deletions
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stepmania/src/archutils/Unix/CrashHandlerChild.cpp
+112 -107
View File
@@ -34,26 +34,26 @@ static void output_stack_trace( FILE *out, const void **BacktracePointers )
fprintf( out, "No backtrace method available.\n");
return;
}
if( !BacktracePointers[0] )
{
fprintf( out, "Backtrace was empty.\n");
return;
}
for( int i = 0; BacktracePointers[i]; ++i)
{
BacktraceNames bn;
bn.FromAddr( BacktracePointers[i] );
bn.Demangle();
/* Don't show the main module name. */
/* Don't show the main module name. */
if( bn.File == g_pCrashHandlerArgv0 )
bn.File = "";
if( bn.Symbol == "__libc_start_main" )
break;
fprintf( out, "%s\n", bn.Format().c_str() );
}
}
@@ -71,7 +71,7 @@ const char *SignalCodeName( int signo, int code )
case SI_ASYNCIO: return "async I/O completed";
case SI_SIGIO: return "queued SIGIO";
}
switch( signo )
{
case SIGILL:
@@ -87,7 +87,7 @@ const char *SignalCodeName( int signo, int code )
case ILL_BADSTK: return "internal stack error";
}
break;
case SIGFPE:
switch( code )
{
@@ -101,7 +101,7 @@ const char *SignalCodeName( int signo, int code )
case FPE_FLTSUB: return "subscript out of range";
}
break;
case SIGSEGV:
switch( code )
{
@@ -109,8 +109,8 @@ const char *SignalCodeName( int signo, int code )
case SEGV_ACCERR: return "invalid permissions";
}
break;
case SIGBUS:
case SIGBUS:
switch( code )
{
case BUS_ADRALN: return "invalid address alignment";
@@ -118,7 +118,7 @@ const char *SignalCodeName( int signo, int code )
case BUS_OBJERR: return "object specific hardware error";
}
break;
case SIGTRAP:
switch( code )
{
@@ -126,7 +126,7 @@ const char *SignalCodeName( int signo, int code )
case TRAP_TRACE: return "process trace trap";
}
break;
case SIGCHLD:
switch( code )
{
@@ -138,7 +138,7 @@ const char *SignalCodeName( int signo, int code )
case CLD_CONTINUED: return "stopped child has continued";
}
break;
case SIGPOLL:
switch( code )
{
@@ -151,7 +151,7 @@ const char *SignalCodeName( int signo, int code )
}
break;
}
static char buf[128];
sprintf( buf, "Unknown code %i", code );
return buf;
@@ -172,16 +172,16 @@ bool child_read( int fd, void *p, int size )
fprintf( stderr, "Crash handler: error communicating with parent: %s\n", strerror(errno) );
return false;
}
if( ret == 0 )
{
fprintf( stderr, "Crash handler: EOF communicating with parent.\n");
fprintf( stderr, "Crash handler: EOF communicating with parent.\n" );
return false;
}
got += ret;
}
return true;
}
@@ -192,176 +192,181 @@ static void child_process()
/* 1. Read the CrashData. */
CrashData crash;
if( !child_read(3, &crash, sizeof(CrashData)) )
return;
return;
/* 2. Read info. */
int size;
if( !child_read(3, &size, sizeof(size)) )
return;
return;
char *Info = new char [size];
if( !child_read(3, Info, size) )
return;
return;
/* 3. Read AdditionalLog. */
if( !child_read(3, &size, sizeof(size)) )
return;
return;
char *AdditionalLog = new char [size];
if( !child_read(3, AdditionalLog, size) )
return;
return;
/* 4. Read RecentLogs. */
int cnt = 0;
if( !child_read(3, &cnt, sizeof(cnt)) )
return;
return;
char *Recent[1024];
for( int i = 0; i < cnt; ++i )
{
if( !child_read(3, &size, sizeof(size)) )
return;
return;
Recent[i] = new char [size];
if( !child_read(3, Recent[i], size) )
return;
return;
}
/* 5. Read CHECKPOINTs. */
if( !child_read(3, &size, sizeof(size)) )
return;
return;
char *temp = new char [size];
if( !child_read(3, temp, size) )
return;
return;
vector<CString> Checkpoints;
split(temp, "$$", Checkpoints);
delete [] temp;
/* 6. Read the crashed thread's name. */
if( !child_read(3, &size, sizeof(size)) )
return;
return;
temp = new char [size];
if( !child_read(3, temp, size) )
return;
return;
const CString CrashedThread(temp);
delete[] temp;
/* Wait for the child to either finish cleaning up or die. XXX:
* This should time out, in case something deadlocks. */
char x;
int ret = read(3, &x, sizeof(x));
int ret = read( 3, &x, sizeof(x) );
if( ret > 0 )
{
fprintf( stderr, "Unexpected child read() result: %i\n", ret );
/* keep going */
} else if( (ret == -1 && errno != EPIPE) || ret != 0 )
}
else if( (ret == -1 && errno != EPIPE) || ret != 0 )
{
/* We expect an EOF or EPIPE. What happened? */
fprintf(stderr, "Unexpected child read() result: %i (%s)\n", ret, strerror(errno));
fprintf( stderr, "Unexpected child read() result: %i (%s)\n", ret, strerror(errno) );
/* keep going */
}
const char *home = getenv( "HOME" );
CString sCrashInfoPath = "/tmp";
if( home )
sCrashInfoPath = home;
sCrashInfoPath += "/crashinfo.txt";
FILE *CrashDump = fopen( sCrashInfoPath, "w+" );
if(CrashDump == NULL)
{
fprintf( stderr, "Couldn't open " + sCrashInfoPath + ": %s\n", strerror(errno) );
exit(1);
}
fprintf(CrashDump, "%s crash report", PRODUCT_NAME_VER );
fprintf( CrashDump, "%s crash report", PRODUCT_NAME_VER );
#if defined(HAVE_VERSION_INFO)
fprintf(CrashDump, " (build %u)", version_num);
fprintf( CrashDump, " (build %u)", version_num);
#endif
fprintf(CrashDump, "\n");
fprintf(CrashDump, "--------------------------------------\n");
fprintf(CrashDump, "\n");
fprintf( CrashDump, "\n" );
fprintf( CrashDump, "--------------------------------------\n" );
fprintf( CrashDump, "\n" );
CString reason;
switch( crash.type )
{
case CrashData::SIGNAL:
{
CString Signal = SignalName( crash.signal );
#if !defined(MACOSX)
reason = ssprintf( "%s - %s", Signal.c_str(), SignalCodeName(crash.signal, crash.si.si_code) );
#else
reason = Signal;
#endif
/* Linux puts the PID that sent the signal in si_addr for SI_USER. */
if( crash.si.si_code == SI_USER )
reason += ssprintf( " from pid %li", (long) crash.si.si_addr );
else switch( crash.signal )
case CrashData::SIGNAL:
{
case SIGILL:
case SIGFPE:
case SIGSEGV:
case SIGBUS:
reason += ssprintf( " at 0x%0*lx", int(sizeof(void*)*2), (unsigned long) crash.si.si_addr );
CString Signal = SignalName( crash.signal );
#if !defined(MACOSX)
reason = ssprintf( "%s - %s", Signal.c_str(), SignalCodeName(crash.signal, crash.si.si_code) );
#else
reason = Signal;
#endif
/* Linux puts the PID that sent the signal in si_addr for SI_USER. */
if( crash.si.si_code == SI_USER )
{
reason += ssprintf( " from pid %li", (long) crash.si.si_addr );
}
else
{
switch( crash.signal )
{
case SIGILL:
case SIGFPE:
case SIGSEGV:
case SIGBUS:
reason += ssprintf( " at 0x%0*lx", int(sizeof(void*)*2), (unsigned long) crash.si.si_addr );
}
break;
}
}
break;
case CrashData::FORCE_CRASH:
crash.reason[ sizeof(crash.reason)-1] = 0;
reason = crash.reason;
break;
}
case CrashData::FORCE_CRASH:
crash.reason[ sizeof(crash.reason)-1] = 0;
reason = crash.reason;
break;
}
fprintf( CrashDump, "Crash reason: %s\n", reason.c_str() );
fprintf( CrashDump, "Crashed thread: %s\n\n", CrashedThread.c_str() );
fprintf(CrashDump, "Checkpoints:\n");
for (unsigned i=0; i<Checkpoints.size(); ++i)
fprintf(CrashDump, Checkpoints[i]);
fprintf(CrashDump, "\n");
for( unsigned i=0; i<Checkpoints.size(); ++i )
fprintf( CrashDump, Checkpoints[i] );
fprintf( CrashDump, "\n" );
for( int i = 0; i < CrashData::MAX_BACKTRACE_THREADS; ++i )
{
if( !crash.BacktracePointers[i][0] )
break;
fprintf( CrashDump, "Thread: %s\n", crash.m_ThreadName[i] );
output_stack_trace( CrashDump, crash.BacktracePointers[i] );
fprintf(CrashDump, "\n");
fprintf( CrashDump, "\n" );
}
fprintf(CrashDump, "Static log:\n");
fprintf(CrashDump, "%s", Info);
fprintf(CrashDump, "%s", AdditionalLog);
fprintf(CrashDump, "\nPartial log:\n");
fprintf( CrashDump, "Static log:\n" );
fprintf( CrashDump, "%s", Info );
fprintf( CrashDump, "%s", AdditionalLog );
fprintf(CrashDump, "\nPartial log:\n" );
for( int i = 0; i < cnt; ++i )
fprintf(CrashDump, "%s\n", Recent[i] );
fprintf(CrashDump, "\n");
fprintf(CrashDump, "-- End of report\n");
fclose(CrashDump);
fprintf( CrashDump, "%s\n", Recent[i] );
fprintf( CrashDump, "\n" );
fprintf( CrashDump, "-- End of report\n" );
fclose( CrashDump) ;
#if defined(MACOSX)
/* Forcibly kill our parent. */
kill( getppid(), SIGKILL );
InformUserOfCrash( sCrashInfoPath );
#else
/* stdout may have been inadvertently closed by the crash in the parent;
* write to /dev/tty instead. */
* write to /dev/tty instead. */
FILE *tty = fopen( "/dev/tty", "w" );
if( tty == NULL )
tty = stderr;
fprintf(tty,
"\n"
PRODUCT_NAME " has crashed. Debug information has been output to\n"
"\n"
" " + sCrashInfoPath + "\n"
"\n"
"Please report a bug at:\n"
"\n"
" " REPORT_BUG_URL "\n"
"\n"
);
fprintf( tty,
"\n"
PRODUCT_NAME " has crashed. Debug information has been output to\n"
"\n"
" " + sCrashInfoPath + "\n"
"\n"
"Please report a bug at:\n"
"\n"
" " REPORT_BUG_URL "\n"
"\n" );
#endif
}