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Refactor Chrome's out-of-process Linux code into CrashGeneration{Server,Client} classes. Upstreamed from the Mozilla repository. Patch by Chris Jones <jones.chris.g@gmail.com> r=me at https://bugzilla.mozilla.org/show_bug.cgi?id=516759

Browse source 
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@515 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
ted.mielczarek 2010-02-05 18:21:31 +00:00
parent bd76cd035c
commit f480ba1169
11 changed files with 925 additions and 40 deletions
src/client/linux/handler
exception_handler.cc

60
src/client/linux/handler/exception_handler.cc
View file

@ -114,23 +114,26 @@ ExceptionHandler::ExceptionHandler(const std::string &dump_path,
MinidumpCallback callback,
void *callback_context,
bool install_handler)
: filter_(filter),
callback_(callback),
callback_context_(callback_context),
dump_path_(),
handler_installed_(install_handler),
crash_handler_(NULL) {
set_dump_path(dump_path);
: filter_(filter),
callback_(callback),
callback_context_(callback_context),
handler_installed_(install_handler)
{
Init(dump_path, -1);
}
if (install_handler) {
InstallHandlers();
pthread_mutex_lock(&handler_stack_mutex_);
if (handler_stack_ == NULL)
handler_stack_ = new std::vector<ExceptionHandler *>;
handler_stack_->push_back(this);
pthread_mutex_unlock(&handler_stack_mutex_);
}
ExceptionHandler::ExceptionHandler(const std::string &dump_path,
FilterCallback filter,
MinidumpCallback callback,
void* callback_context,
bool install_handler,
const int server_fd)
: filter_(filter),
callback_(callback),
callback_context_(callback_context),
handler_installed_(install_handler)
{
Init(dump_path, server_fd);
}
// Runs before crashing: normal context.
@ -138,6 +141,28 @@ ExceptionHandler::~ExceptionHandler() {
UninstallHandlers();
}
void ExceptionHandler::Init(const std::string &dump_path,
const int server_fd)
{
crash_handler_ = NULL;
if (0 <= server_fd)
crash_generation_client_
.reset(CrashGenerationClient::TryCreate(server_fd));
if (handler_installed_)
InstallHandlers();
if (!IsOutOfProcess())
set_dump_path(dump_path);
pthread_mutex_lock(&handler_stack_mutex_);
if (handler_stack_ == NULL)
handler_stack_ = new std::vector<ExceptionHandler *>;
handler_stack_->push_back(this);
pthread_mutex_unlock(&handler_stack_mutex_);
}
// Runs before crashing: normal context.
bool ExceptionHandler::InstallHandlers() {
// We run the signal handlers on an alternative stack because we might have
@ -280,6 +305,9 @@ bool ExceptionHandler::HandleSignal(int sig, siginfo_t* info, void* uc) {
// This function may run in a compromised context: see the top of the file.
bool ExceptionHandler::GenerateDump(CrashContext *context) {
if (IsOutOfProcess())
return crash_generation_client_->RequestDump(context, sizeof(*context));
static const unsigned kChildStackSize = 8000;
PageAllocator allocator;
uint8_t* stack = (uint8_t*) allocator.Alloc(kChildStackSize);