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Unhook CR exception handler.

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Tag #20
This commit is contained in:
wolfbeast 2019-04-01 13:04:33 +02:00 • committed by Roy Tam
commit 8ec2b1b1b5
6 changed files with 0 additions and 84 deletions
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78
xpcom/base/nsObjCExceptions.h
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@ -13,10 +13,6 @@
#import <Foundation/Foundation.h>
#ifdef DEBUG
#import <ExceptionHandling/NSExceptionHandler.h>
#endif
#include <unistd.h>
#include <signal.h>
#include "nsError.h"
@ -40,80 +36,6 @@ nsObjCExceptionLog(NSException* aException)
{
NSLog(@"Mozilla has caught an Obj-C exception [%@: %@]",
[aException name], [aException reason]);
#ifdef DEBUG
@try {
// Try to get stack information out of the exception. 10.5 returns the stack
// info with the callStackReturnAddresses selector.
NSArray* stackTrace = nil;
if ([aException respondsToSelector:@selector(callStackReturnAddresses)]) {
NSArray* addresses = (NSArray*)
[aException performSelector:@selector(callStackReturnAddresses)];
if ([addresses count]) {
stackTrace = addresses;
}
}
// 10.4 doesn't respond to callStackReturnAddresses so we'll try to pull the
// stack info out of the userInfo. It might not be there, sadly :(
if (!stackTrace) {
stackTrace = [[aException userInfo] objectForKey:NSStackTraceKey];
}
if (stackTrace) {
// The command line should look like this:
// /usr/bin/atos -p <pid> -printHeader <stack frame addresses>
NSMutableArray* args =
[NSMutableArray arrayWithCapacity:[stackTrace count] + 3];
[args addObject:@"-p"];
int pid = [[NSProcessInfo processInfo] processIdentifier];
[args addObject:[NSString stringWithFormat:@"%d", pid]];
[args addObject:@"-printHeader"];
unsigned int stackCount = [stackTrace count];
unsigned int stackIndex = 0;
for (; stackIndex < stackCount; stackIndex++) {
unsigned long address =
[[stackTrace objectAtIndex:stackIndex] unsignedLongValue];
[args addObject:[NSString stringWithFormat:@"0x%lx", address]];
}
NSPipe* outPipe = [NSPipe pipe];
NSTask* task = [[NSTask alloc] init];
[task setLaunchPath:@"/usr/bin/atos"];
[task setArguments:args];
[task setStandardOutput:outPipe];
[task setStandardError:outPipe];
NSLog(@"Generating stack trace for Obj-C exception...");
// This will throw an exception if the atos tool cannot be found, and in
// that case we'll just hit our @catch block below.
[task launch];
[task waitUntilExit];
[task release];
NSData* outData =
[[outPipe fileHandleForReading] readDataToEndOfFile];
NSString* outString =
[[NSString alloc] initWithData:outData encoding:NSUTF8StringEncoding];
NSLog(@"Stack trace:\n%@", outString);
[outString release];
} else {
NSLog(@"<No stack information available for Obj-C exception>");
}
}
@catch (NSException* exn) {
NSLog(@"Failed to generate stack trace for Obj-C exception [%@: %@]",
[exn name], [exn reason]);
}
#endif
}
__attribute__((unused))