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Bug 1247399 - Add some debug spew to Linux crash handler r=ted

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This commit is contained in:
James Willcox 2016-02-12 10:24:12 -06:00
parent eef9b2dc19
commit 4a644027c8
1 changed files with 22 additions and 0 deletions
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22
toolkit/crashreporter/google-breakpad/src/client/linux/handler/exception_handler.cc
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@ -531,6 +531,21 @@ bool ExceptionHandler::GenerateDump(CrashContext *context) {
return false;
}
if (child != 0) {
char *clonedMsg = "ExceptionHandler::GenerateDump cloned child ";
char pidMsg[32];
unsigned int pidLen = my_uint_len(child);
my_uitos(pidMsg, child, pidLen);
logger::write(clonedMsg, my_strlen(clonedMsg));
logger::write(pidMsg, pidLen);
logger::write("\n", 1);
} else {
char *childMsg = "ExceptionHandler::GenerateDump I'm the child\n";
logger::write(childMsg, my_strlen(childMsg));
}
// Allow the child to ptrace us
sys_prctl(PR_SET_PTRACER, child, 0, 0, 0);
SendContinueSignalToChild();
@ -565,6 +580,9 @@ void ExceptionHandler::SendContinueSignalToChild() {
logger::write(strerror(errno), strlen(strerror(errno)));
logger::write("\n", 1);
}
const char* msg = "ExceptionHandler::SendContinueSignalToChild sent continue signal to child\n";
logger::write(msg, my_strlen(msg));
}
// This function runs in a compromised context: see the top of the file.
@ -572,6 +590,10 @@ void ExceptionHandler::SendContinueSignalToChild() {
void ExceptionHandler::WaitForContinueSignal() {
int r;
char receivedMessage;
const char* waitMsg = "ExceptionHandler::WaitForContinueSignal waiting for continue signal...\n";
logger::write(waitMsg, my_strlen(waitMsg));
r = HANDLE_EINTR(sys_read(fdes[0], &receivedMessage, sizeof(char)));
if (r == -1) {
static const char msg[] = "ExceptionHandler::WaitForContinueSignal "