fdea9a4ec9
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
96 lines
2.2 KiB
C++
96 lines
2.2 KiB
C++
#include <chrono>
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#include <condition_variable>
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#include <cstdio>
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#include <random>
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#include <thread>
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std::default_random_engine g_random_engine{std::random_device{}()};
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std::uniform_int_distribution<> g_distribution{0, 3000000};
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std::condition_variable g_condition_variable;
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std::mutex g_mutex;
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int g_count;
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char *g_char_ptr = nullptr;
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void
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barrier_wait()
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{
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std::unique_lock<std::mutex> lock{g_mutex};
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if (--g_count > 0)
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g_condition_variable.wait(lock);
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else
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g_condition_variable.notify_all();
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}
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void
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do_bad_thing_with_location(char *char_ptr, char new_val)
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{
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*char_ptr = new_val;
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}
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uint32_t
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access_pool (bool flag = false)
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{
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static std::mutex g_access_mutex;
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if (!flag)
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g_access_mutex.lock();
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char old_val = *g_char_ptr;
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if (flag)
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do_bad_thing_with_location(g_char_ptr, old_val + 1);
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if (!flag)
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g_access_mutex.unlock();
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return *g_char_ptr;
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}
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void
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thread_func (uint32_t thread_index)
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{
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printf ("%s (thread index = %u) startng...\n", __FUNCTION__, thread_index);
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barrier_wait();
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uint32_t count = 0;
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uint32_t val;
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while (count++ < 15)
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{
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// random micro second sleep from zero to 3 seconds
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int usec = g_distribution(g_random_engine);
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printf ("%s (thread = %u) doing a usleep (%d)...\n", __FUNCTION__, thread_index, usec);
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std::this_thread::sleep_for(std::chrono::microseconds{usec});
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if (count < 7)
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val = access_pool ();
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else
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val = access_pool (true);
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printf ("%s (thread = %u) after usleep access_pool returns %d (count=%d)...\n", __FUNCTION__, thread_index, val, count);
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}
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printf ("%s (thread index = %u) exiting...\n", __FUNCTION__, thread_index);
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}
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int main (int argc, char const *argv[])
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{
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g_count = 4;
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std::thread threads[3];
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g_char_ptr = new char{};
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// Create 3 threads
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for (auto &thread : threads)
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thread = std::thread{thread_func, std::distance(threads, &thread)};
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printf ("Before turning all three threads loose...\n"); // Set break point at this line.
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barrier_wait();
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// Join all of our threads
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for (auto &thread : threads)
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thread.join();
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delete g_char_ptr;
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return 0;
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}
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