Files
clang-p2996/lldb/test/API/functionalities/thread/create_during_step/main.cpp
Raphael Isemann fdea9a4ec9 [lldb] Remove license headers from all test source files
Summary:
Around a third of our test sources have LLVM license headers. This patch removes those headers from all test
sources and also fixes any tests that depended on the length of the license header.

The reasons for this are:

* A few tests verify line numbers and will start failing if the number of lines in the LLVM license header changes. Once I landed my patch for valid SourceLocations in debug info we will probably have even more tests that verify line numbers.
* No other LLVM project is putting license headers in its test files to my knowledge.
* They make the test sources much more verbose than they have to be. Several tests have longer license headers than the actual test source.

For the record, the following tests had their line numbers changed to pass with the removal of the license header:
    lldb-api :: functionalities/breakpoint/breakpoint_by_line_and_column/TestBreakpointByLineAndColumn.py
    lldb-shell :: Reproducer/TestGDBRemoteRepro.test
    lldb-shell :: Reproducer/TestMultipleTargets.test
    lldb-shell :: Reproducer/TestReuseDirectory.test
    lldb-shell :: ExecControl/StopHook/stop-hook-threads.test
    lldb-shell :: ExecControl/StopHook/stop-hook.test
    lldb-api :: lang/objc/exceptions/TestObjCExceptions.py

Reviewers: #lldb, espindola, JDevlieghere

Reviewed By: #lldb, JDevlieghere

Subscribers: emaste, aprantl, arphaman, JDevlieghere, lldb-commits

Tags: #lldb

Differential Revision: https://reviews.llvm.org/D74839
2020-02-20 08:32:01 +01:00

71 lines
1.5 KiB
C++

// This test is intended to create a situation in which one thread will be
// created while the debugger is stepping in another thread.
#include "pseudo_barrier.h"
#include <thread>
#define do_nothing()
pseudo_barrier_t g_barrier;
volatile int g_thread_created = 0;
volatile int g_test = 0;
void *
step_thread_func ()
{
g_test = 0; // Set breakpoint here
while (!g_thread_created)
g_test++;
// One more time to provide a continue point
g_test++; // Continue from here
// Return
return NULL;
}
void *
create_thread_func (void *input)
{
std::thread *step_thread = (std::thread*)input;
// Wait until the main thread knows this thread is started.
pseudo_barrier_wait(g_barrier);
// Wait until the other thread is done.
step_thread->join();
// Return
return NULL;
}
int main ()
{
// Use a simple count to simulate a barrier.
pseudo_barrier_init(g_barrier, 2);
// Create a thread to hit the breakpoint.
std::thread thread_1(step_thread_func);
// Wait until the step thread is stepping
while (g_test < 1)
do_nothing();
// Create a thread to exit while we're stepping.
std::thread thread_2(create_thread_func, &thread_1);
// Wait until that thread is started
pseudo_barrier_wait(g_barrier);
// Let the stepping thread know the other thread is there
g_thread_created = 1;
// Wait for the threads to finish.
thread_2.join();
thread_1.join();
return 0;
}