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Remove useless and unused CrashRecoveryContext::getBacktrace(). This function always returned an empty string.

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llvm-svn: 264458
This commit is contained in:
Richard Smith 2016-03-25 20:30:10 +00:00
parent 1ee8ccb61a
commit 22c4f493ca
2 changed files with 1 additions and 17 deletions
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10
include/llvm/Support/CrashRecoveryContext.h
View File

@ -70,8 +70,7 @@ public:
/// \return True if the function completed successfully, and false if the
/// function crashed (or HandleCrash was called explicitly). Clients should
/// make as little assumptions as possible about the program state when
/// RunSafely has returned false. Clients can use getBacktrace() to retrieve
/// the backtrace of the crash on failures.
/// RunSafely has returned false.
bool RunSafely(function_ref<void()> Fn);
bool RunSafely(void (*Fn)(void*), void *UserData) {
return RunSafely([&]() { Fn(UserData); });
@ -94,13 +93,6 @@ public:
/// \brief Explicitly trigger a crash recovery in the current process, and
/// return failure from RunSafely(). This function does not return.
void HandleCrash();
/// \brief Return a string containing the backtrace where the crash was
/// detected; or empty if the backtrace wasn't recovered.
///
/// This function is only valid when a crash has been detected (i.e.,
/// RunSafely() has returned false.
const std::string &getBacktrace() const;
};
class CrashRecoveryContextCleanup {

8
lib/Support/CrashRecoveryContext.cpp
View File

@ -31,7 +31,6 @@ struct CrashRecoveryContextImpl {
const CrashRecoveryContextImpl *Next;
CrashRecoveryContext *CRC;
std::string Backtrace;
::jmp_buf JumpBuffer;
volatile unsigned Failed : 1;
unsigned SwitchedThread : 1;
@ -335,13 +334,6 @@ void CrashRecoveryContext::HandleCrash() {
CRCI->HandleCrash();
}
const std::string &CrashRecoveryContext::getBacktrace() const {
CrashRecoveryContextImpl *CRC = (CrashRecoveryContextImpl *) Impl;
assert(CRC && "Crash recovery context never initialized!");
assert(CRC->Failed && "No crash was detected!");
return CRC->Backtrace;
}
// FIXME: Portability.
static void setThreadBackgroundPriority() {
#ifdef __APPLE__