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ExceptionHandler::HandleSignal

Browse source 
(https://code.google.com/searchframe#OAMlx_jo-ck/src/breakpad/src/client/linux/handler/exception_handler.cc&exact_package=chromium&q=SI_USER&type=cs&l=389)
requires si_pid to be equal to getpid() for SI_USER signals.

This is a patch by Lei Zhang (thestig@chromium.org) that fixes the issue with
Chrome+ASan being unable to upload the crash dump to the crash server when the
seccomp sandbox is on.

Patch by Alexander Potapenko <glider@chromium.org>
Review URL: https://codereview.appspot.com/7066068/


git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1095 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
mark@chromium.org 2013-01-14 18:53:18 +00:00
parent a8426a5c66
commit 44356b590b
1 changed files with 5 additions and 2 deletions
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7
src/client/linux/handler/exception_handler.cc
View file

@ -415,8 +415,11 @@ bool ExceptionHandler::HandleSignal(int sig, siginfo_t* info, void* uc) {
// This is a public interface to HandleSignal that allows the client to
// generate a crash dump. This function may run in a compromised context.
bool ExceptionHandler::SimulateSignalDelivery(int sig) {
siginfo_t siginfo;
my_memset(&siginfo, 0, sizeof(siginfo_t));
siginfo_t siginfo = {};
// Mimic a trusted signal to allow tracing the process (see
// ExceptionHandler::HandleSignal().
siginfo.si_code = SI_USER;
siginfo.si_pid = getpid();
struct ucontext context;
getcontext(&context);
return HandleSignal(sig, &siginfo, &context);