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From: Bart V. A. <bva...@so...> - 2020-01-16 04:34:00
|
https://sourceware.org/git/gitweb.cgi?p=valgrind.git;h=d6efbcb0b515eff5228ccd06c7fb137fd4e0a1be commit d6efbcb0b515eff5228ccd06c7fb137fd4e0a1be Author: Bart Van Assche <bva...@ac...> Date: Wed Jan 15 19:23:02 2020 -0800 drd/tests/std_mutex: Add a unit test for std::mutex Diff: --- .gitignore | 1 + drd/tests/Makefile.am | 6 ++++++ drd/tests/std_mutex.cpp | 39 +++++++++++++++++++++++++++++++++++++++ drd/tests/std_mutex.stderr.exp | 4 ++++ drd/tests/std_mutex.vgtest | 4 ++++ 5 files changed, 54 insertions(+) diff --git a/.gitignore b/.gitignore index 58dfee0..8e5f0a6 100644 --- a/.gitignore +++ b/.gitignore @@ -405,6 +405,7 @@ /drd/tests/sigalrm /drd/tests/std_atomic /drd/tests/std_list +/drd/tests/std_mutex /drd/tests/std_string /drd/tests/std_thread /drd/tests/std_thread2 diff --git a/drd/tests/Makefile.am b/drd/tests/Makefile.am index a0da60d..20c72c2 100644 --- a/drd/tests/Makefile.am +++ b/drd/tests/Makefile.am @@ -274,6 +274,8 @@ EXTRA_DIST = \ std_atomic.vgtest \ std_list.stderr.exp \ std_list.vgtest \ + std_mutex.stderr.exp \ + std_mutex.vgtest \ std_string.stderr.exp \ std_string.vgtest \ std_thread.stderr.exp \ @@ -434,6 +436,7 @@ if HAVE_SHARED_POINTER_ANNOTATION check_PROGRAMS += \ std_atomic \ std_list \ + std_mutex \ std_string \ std_thread \ std_thread2 @@ -559,6 +562,9 @@ std_atomic_CXXFLAGS = $(AM_CXXFLAGS) -std=c++0x -Wno-sign-compare std_list_SOURCES = std_list.cpp std_list_CXXFLAGS = $(AM_CXXFLAGS) -std=c++0x -Wno-sign-compare +std_mutex_SOURCES = std_mutex.cpp +std_mutex_CXXFLAGS = $(AM_CXXFLAGS) -std=c++0x -Wno-sign-compare + std_string_SOURCES = std_string.cpp std_string_CXXFLAGS = $(AM_CXXFLAGS) -std=c++0x -Wno-sign-compare diff --git a/drd/tests/std_mutex.cpp b/drd/tests/std_mutex.cpp new file mode 100644 index 0000000..7c3333e --- /dev/null +++ b/drd/tests/std_mutex.cpp @@ -0,0 +1,39 @@ +// See also https://bugs.kde.org/show_bug.cgi?id=416286 + +#include <mutex> +#include <iostream> +#include <thread> +#include <vector> + +class counter { +public: + counter(): mutex() {} + void get() { std::unique_lock<std::mutex> lock(mutex); } + +private: + std::mutex mutex; +}; + +static counter& get_counter() +{ + static counter manager; + return manager; +} + +static void do_work() +{ + get_counter().get(); +} + +int main() +{ + std::vector<std::thread> v; + + for (int i = 0; i < 16; i++) + v.emplace_back([]{ do_work(); }); + + for (auto& t : v) + t.join(); + + std::cerr << "Done.\n"; +} diff --git a/drd/tests/std_mutex.stderr.exp b/drd/tests/std_mutex.stderr.exp new file mode 100644 index 0000000..d16127f --- /dev/null +++ b/drd/tests/std_mutex.stderr.exp @@ -0,0 +1,4 @@ + +Done. + +ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0) diff --git a/drd/tests/std_mutex.vgtest b/drd/tests/std_mutex.vgtest new file mode 100644 index 0000000..c592eea --- /dev/null +++ b/drd/tests/std_mutex.vgtest @@ -0,0 +1,4 @@ +prereq: test -e std_mutex && ./supported_libpthread +vgopts: --check-stack-var=yes --show-confl-seg=no +prog: std_mutex +stderr_filter: filter_stderr |
|
From: Bart V. A. <bva...@so...> - 2020-01-16 04:33:55
|
https://sourceware.org/git/gitweb.cgi?p=valgrind.git;h=bb8c57ec64445648788efdb458bde3b7c5d8806e commit bb8c57ec64445648788efdb458bde3b7c5d8806e Author: Bart Van Assche <bva...@ac...> Date: Wed Jan 15 19:59:44 2020 -0800 drd: Fix 'conflicting load' error on std::mutex::lock() Diff: --- NEWS | 1 + drd/drd_pthread_intercepts.c | 15 +++++++++++---- 2 files changed, 12 insertions(+), 4 deletions(-) diff --git a/NEWS b/NEWS index 895c96f..a1c1b06 100644 --- a/NEWS +++ b/NEWS @@ -97,6 +97,7 @@ where XXXXXX is the bug number as listed below. 413330 avx-1 test fails on AMD EPYC 7401P 24-Core Processor 413603 callgrind_annotate/cg_annotate truncate function names at '#' 414565 Specific use case bug found in SysRes VG_(do_sys_sigprocmask) +416286 DRD reports "conflicting load" error on std::mutex::lock() n-i-bz Fix minor one time leaks in dhat. n-i-bz Add --run-cxx-freeres=no in outer args to avoid inner crashes. diff --git a/drd/drd_pthread_intercepts.c b/drd/drd_pthread_intercepts.c index 8d095c0..bb5b9da 100644 --- a/drd/drd_pthread_intercepts.c +++ b/drd/drd_pthread_intercepts.c @@ -364,30 +364,37 @@ static MutexT DRD_(thread_to_drd_mutex_type)(int type) */ static __always_inline MutexT DRD_(mutex_type)(pthread_mutex_t* mutex) { + MutexT mutex_type = mutex_type_unknown; + + ANNOTATE_IGNORE_READS_BEGIN(); #if defined(HAVE_PTHREAD_MUTEX_T__M_KIND) /* glibc + LinuxThreads. */ if (IS_ALIGNED(&mutex->__m_kind)) { const int kind = mutex->__m_kind & 3; - return DRD_(pthread_to_drd_mutex_type)(kind); + mutex_type = DRD_(pthread_to_drd_mutex_type)(kind); } #elif defined(HAVE_PTHREAD_MUTEX_T__DATA__KIND) /* glibc + NPTL. */ if (IS_ALIGNED(&mutex->__data.__kind)) { const int kind = mutex->__data.__kind & 3; - return DRD_(pthread_to_drd_mutex_type)(kind); + mutex_type = DRD_(pthread_to_drd_mutex_type)(kind); } #elif defined(VGO_solaris) + { const int type = ((mutex_t *) mutex)->vki_mutex_type; - return DRD_(thread_to_drd_mutex_type)(type); + mutex_type = DRD_(thread_to_drd_mutex_type)(type); + } #else /* * Another POSIX threads implementation. The mutex type won't be printed * when enabling --trace-mutex=yes. */ #endif - return mutex_type_unknown; + ANNOTATE_IGNORE_READS_END(); + + return mutex_type; } /** |
|
From: Bart V. A. <bva...@so...> - 2020-01-16 04:33:51
|
https://sourceware.org/git/gitweb.cgi?p=valgrind.git;h=2d8192a2a784692c0d8317c20ed9af6e09595abc commit 2d8192a2a784692c0d8317c20ed9af6e09595abc Author: Bart Van Assche <bva...@ac...> Date: Wed Jan 15 19:55:47 2020 -0800 drd/tests/Makefile.am: Fix indentation Diff: --- drd/tests/Makefile.am | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drd/tests/Makefile.am b/drd/tests/Makefile.am index fec3f46..a0da60d 100644 --- a/drd/tests/Makefile.am +++ b/drd/tests/Makefile.am @@ -271,7 +271,7 @@ EXTRA_DIST = \ sigaltstack.stderr.exp \ sigaltstack.vgtest \ std_atomic.stderr.exp \ - std_atomic.vgtest \ + std_atomic.vgtest \ std_list.stderr.exp \ std_list.vgtest \ std_string.stderr.exp \ |