[libc++] fix `gps_time` formatting and related tests by MattStephanson · Pull Request #181560 · llvm/llvm-project

MattStephanson · 2026-02-15T18:28:23Z

The Standard wording, [time.format]/13, is similar to TAI formatting in that it's equivalent to formatting a sys_time with a fixed offset. Leap seconds should not be considered.
Tests need to be adjusted by adding the number of leap seconds between the GPS epoch and the tested date, which is 15s for 2010 and 18s for 2019.
The TAI and GPS tests using meow_time<cr::duration<long, std::ratio<1, 10>>> should use long long because the offset will overflow a 32-bit signed integer.

I don't have commit access.

llvmbot · 2026-02-15T18:28:55Z

@llvm/pr-subscribers-libcxx

Author: Matt Stephanson (MattStephanson)

Changes

The Standard wording, [[time.format]/13](https://eel.is/c++draft/time.format#13), is similar to TAI formatting in that it's equivalent to formatting a sys_time with a fixed offset. Leap seconds should not be considered.
Tests need to be adjusted by adding the number of leap seconds between the GPS epoch and the tested date, which is 15s for 2010 and 18s for 2019.
The TAI and GPS tests using meow_time<cr::duration<long, std::ratio<1, 10>>> should use long long because the offset will overflow a 32-bit signed integer.

Full diff: https://github.com/llvm/llvm-project/pull/181560.diff

3 Files Affected:

(modified) libcxx/include/__chrono/convert_to_tm.h (+4-1)
(modified) libcxx/test/std/time/time.clock/time.clock.gps/gps_time.ostream.pass.cpp (+27-27)
(modified) libcxx/test/std/time/time.clock/time.clock.tai/tai_time.ostream.pass.cpp (+6-6)

diff --git a/libcxx/include/__chrono/convert_to_tm.h b/libcxx/include/__chrono/convert_to_tm.h
index 817e6747a789f..16e1415238c2b 100644
--- a/libcxx/include/__chrono/convert_to_tm.h
+++ b/libcxx/include/__chrono/convert_to_tm.h
@@ -127,7 +127,10 @@ _LIBCPP_HIDE_FROM_ABI _Tm __convert_to_tm(chrono::tai_time<_Duration> __tp) {
 
 template <class _Tm, class _Duration>
 _LIBCPP_HIDE_FROM_ABI _Tm __convert_to_tm(chrono::gps_time<_Duration> __tp) {
-  return std::__convert_to_tm<_Tm>(chrono::utc_clock::to_sys(chrono::gps_clock::to_utc(__tp)));
+  using _Rp = common_type_t<_Duration, chrono::seconds>;
+  // The time between the GPS epoch (1980-01-06) and UNIX epoch (1970-01-01).
+  constexpr chrono::seconds __offset{3657 * 24 * 60 * 60};
+  return std::__convert_to_tm<_Tm>(chrono::sys_time<_Rp>{__tp.time_since_epoch() + __offset});
 }
 
 #    endif // _LIBCPP_HAS_EXPERIMENTAL_TZDB
diff --git a/libcxx/test/std/time/time.clock/time.clock.gps/gps_time.ostream.pass.cpp b/libcxx/test/std/time/time.clock/time.clock.gps/gps_time.ostream.pass.cpp
index 3f942bc63ce5a..25201a4dc1129 100644
--- a/libcxx/test/std/time/time.clock/time.clock.gps/gps_time.ostream.pass.cpp
+++ b/libcxx/test/std/time/time.clock/time.clock.gps/gps_time.ostream.pass.cpp
@@ -69,14 +69,14 @@ static void test_c() {
   namespace cr = std::chrono;
 
   assert(stream_c_locale<CharT>(cr::gps_time<cr::nanoseconds>{946'688'523'123'456'789ns}) ==
-         SV("2010-01-05 01:01:48.123456789"));
+         SV("2010-01-05 01:02:03.123456789"));
   assert(stream_c_locale<CharT>(cr::gps_time<cr::microseconds>{946'688'523'123'456us}) ==
-         SV("2010-01-05 01:01:48.123456"));
+         SV("2010-01-05 01:02:03.123456"));
 
-  assert(stream_c_locale<CharT>(cr::gps_time<cr::milliseconds>{946'684'822'123ms}) == SV("2010-01-05 00:00:07.123"));
-  assert(stream_c_locale<CharT>(cr::gps_seconds{1'234'567'890s}) == SV("2019-02-18 23:31:12"));
-  assert(stream_c_locale<CharT>(cr::gps_time<cr::minutes>{20'576'131min}) == SV("2019-02-18 23:30:42"));
-  assert(stream_c_locale<CharT>(cr::gps_time<cr::hours>{342'935h}) == SV("2019-02-18 22:59:42"));
+  assert(stream_c_locale<CharT>(cr::gps_time<cr::milliseconds>{946'684'822'123ms}) == SV("2010-01-05 00:00:22.123"));
+  assert(stream_c_locale<CharT>(cr::gps_seconds{1'234'567'890s}) == SV("2019-02-18 23:31:30"));
+  assert(stream_c_locale<CharT>(cr::gps_time<cr::minutes>{20'576'131min}) == SV("2019-02-18 23:31:00"));
+  assert(stream_c_locale<CharT>(cr::gps_time<cr::hours>{342'935h}) == SV("2019-02-18 23:00:00"));
 
   assert(stream_c_locale<CharT>(cr::gps_time<cr::duration<signed char, std::ratio<2, 1>>>{
              cr::duration<signed char, std::ratio<2, 1>>{60}}) == SV("1980-01-06 00:02:00"));
@@ -84,10 +84,10 @@ static void test_c() {
              cr::duration<short, std::ratio<1, 2>>{3600}}) == SV("1980-01-06 00:30:00.0"));
   assert(stream_c_locale<CharT>(cr::gps_time<cr::duration<int, std::ratio<1, 4>>>{
              cr::duration<int, std::ratio<1, 4>>{3600}}) == SV("1980-01-06 00:15:00.00"));
-  assert(stream_c_locale<CharT>(cr::gps_time<cr::duration<long, std::ratio<1, 10>>>{
-             cr::duration<long, std::ratio<1, 10>>{36611}}) == SV("1980-01-06 01:01:01.1"));
+  assert(stream_c_locale<CharT>(cr::gps_time<cr::duration<long long, std::ratio<1, 10>>>{
+             cr::duration<long long, std::ratio<1, 10>>{36611}}) == SV("1980-01-06 01:01:01.1"));
   assert(stream_c_locale<CharT>(cr::gps_time<cr::duration<long long, std::ratio<1, 100>>>{
-             cr::duration<long long, std::ratio<1, 100>>{123'456'789'010}}) == SV("2019-02-18 23:31:12.10"));
+             cr::duration<long long, std::ratio<1, 100>>{123'456'789'010}}) == SV("2019-02-18 23:31:30.10"));
 }
 
 template <class CharT>
@@ -96,15 +96,15 @@ static void test_fr_FR() {
   namespace cr = std::chrono;
 
   assert(stream_fr_FR_locale<CharT>(cr::gps_time<cr::nanoseconds>{946'688'523'123'456'789ns}) ==
-         SV("2010-01-05 01:01:48,123456789"));
+         SV("2010-01-05 01:02:03,123456789"));
   assert(stream_fr_FR_locale<CharT>(cr::gps_time<cr::microseconds>{946'688'523'123'456us}) ==
-         SV("2010-01-05 01:01:48,123456"));
+         SV("2010-01-05 01:02:03,123456"));
 
   assert(stream_fr_FR_locale<CharT>(cr::gps_time<cr::milliseconds>{946'684'822'123ms}) ==
-         SV("2010-01-05 00:00:07,123"));
-  assert(stream_fr_FR_locale<CharT>(cr::gps_seconds{1'234'567'890s}) == SV("2019-02-18 23:31:12"));
-  assert(stream_fr_FR_locale<CharT>(cr::gps_time<cr::minutes>{20'576'131min}) == SV("2019-02-18 23:30:42"));
-  assert(stream_fr_FR_locale<CharT>(cr::gps_time<cr::hours>{342'935h}) == SV("2019-02-18 22:59:42"));
+         SV("2010-01-05 00:00:22,123"));
+  assert(stream_fr_FR_locale<CharT>(cr::gps_seconds{1'234'567'890s}) == SV("2019-02-18 23:31:30"));
+  assert(stream_fr_FR_locale<CharT>(cr::gps_time<cr::minutes>{20'576'131min}) == SV("2019-02-18 23:31:00"));
+  assert(stream_fr_FR_locale<CharT>(cr::gps_time<cr::hours>{342'935h}) == SV("2019-02-18 23:00:00"));
 
   assert(stream_fr_FR_locale<CharT>(cr::gps_time<cr::duration<signed char, std::ratio<2, 1>>>{
              cr::duration<signed char, std::ratio<2, 1>>{60}}) == SV("1980-01-06 00:02:00"));
@@ -112,10 +112,10 @@ static void test_fr_FR() {
              cr::duration<short, std::ratio<1, 2>>{3600}}) == SV("1980-01-06 00:30:00,0"));
   assert(stream_fr_FR_locale<CharT>(cr::gps_time<cr::duration<int, std::ratio<1, 4>>>{
              cr::duration<int, std::ratio<1, 4>>{3600}}) == SV("1980-01-06 00:15:00,00"));
-  assert(stream_fr_FR_locale<CharT>(cr::gps_time<cr::duration<long, std::ratio<1, 10>>>{
-             cr::duration<long, std::ratio<1, 10>>{36611}}) == SV("1980-01-06 01:01:01,1"));
+  assert(stream_fr_FR_locale<CharT>(cr::gps_time<cr::duration<long long, std::ratio<1, 10>>>{
+             cr::duration<long long, std::ratio<1, 10>>{36611}}) == SV("1980-01-06 01:01:01,1"));
   assert(stream_fr_FR_locale<CharT>(cr::gps_time<cr::duration<long long, std::ratio<1, 100>>>{
-             cr::duration<long long, std::ratio<1, 100>>{123'456'789'010}}) == SV("2019-02-18 23:31:12,10"));
+             cr::duration<long long, std::ratio<1, 100>>{123'456'789'010}}) == SV("2019-02-18 23:31:30,10"));
 }
 
 template <class CharT>
@@ -124,15 +124,15 @@ static void test_ja_JP() {
   namespace cr = std::chrono;
 
   assert(stream_ja_JP_locale<CharT>(cr::gps_time<cr::nanoseconds>{946'688'523'123'456'789ns}) ==
-         SV("2010-01-05 01:01:48.123456789"));
+         SV("2010-01-05 01:02:03.123456789"));
   assert(stream_ja_JP_locale<CharT>(cr::gps_time<cr::microseconds>{946'688'523'123'456us}) ==
-         SV("2010-01-05 01:01:48.123456"));
+         SV("2010-01-05 01:02:03.123456"));
 
   assert(stream_ja_JP_locale<CharT>(cr::gps_time<cr::milliseconds>{946'684'822'123ms}) ==
-         SV("2010-01-05 00:00:07.123"));
-  assert(stream_ja_JP_locale<CharT>(cr::gps_seconds{1'234'567'890s}) == SV("2019-02-18 23:31:12"));
-  assert(stream_ja_JP_locale<CharT>(cr::gps_time<cr::minutes>{20'576'131min}) == SV("2019-02-18 23:30:42"));
-  assert(stream_ja_JP_locale<CharT>(cr::gps_time<cr::hours>{342'935h}) == SV("2019-02-18 22:59:42"));
+         SV("2010-01-05 00:00:22.123"));
+  assert(stream_ja_JP_locale<CharT>(cr::gps_seconds{1'234'567'890s}) == SV("2019-02-18 23:31:30"));
+  assert(stream_ja_JP_locale<CharT>(cr::gps_time<cr::minutes>{20'576'131min}) == SV("2019-02-18 23:31:00"));
+  assert(stream_ja_JP_locale<CharT>(cr::gps_time<cr::hours>{342'935h}) == SV("2019-02-18 23:00:00"));
 
   assert(stream_ja_JP_locale<CharT>(cr::gps_time<cr::duration<signed char, std::ratio<2, 1>>>{
              cr::duration<signed char, std::ratio<2, 1>>{60}}) == SV("1980-01-06 00:02:00"));
@@ -140,10 +140,10 @@ static void test_ja_JP() {
              cr::duration<short, std::ratio<1, 2>>{3600}}) == SV("1980-01-06 00:30:00.0"));
   assert(stream_ja_JP_locale<CharT>(cr::gps_time<cr::duration<int, std::ratio<1, 4>>>{
              cr::duration<int, std::ratio<1, 4>>{3600}}) == SV("1980-01-06 00:15:00.00"));
-  assert(stream_ja_JP_locale<CharT>(cr::gps_time<cr::duration<long, std::ratio<1, 10>>>{
-             cr::duration<long, std::ratio<1, 10>>{36611}}) == SV("1980-01-06 01:01:01.1"));
+  assert(stream_ja_JP_locale<CharT>(cr::gps_time<cr::duration<long long, std::ratio<1, 10>>>{
+             cr::duration<long long, std::ratio<1, 10>>{36611}}) == SV("1980-01-06 01:01:01.1"));
   assert(stream_ja_JP_locale<CharT>(cr::gps_time<cr::duration<long long, std::ratio<1, 100>>>{
-             cr::duration<long long, std::ratio<1, 100>>{123'456'789'010}}) == SV("2019-02-18 23:31:12.10"));
+             cr::duration<long long, std::ratio<1, 100>>{123'456'789'010}}) == SV("2019-02-18 23:31:30.10"));
 }
 
 template <class CharT>
diff --git a/libcxx/test/std/time/time.clock/time.clock.tai/tai_time.ostream.pass.cpp b/libcxx/test/std/time/time.clock/time.clock.tai/tai_time.ostream.pass.cpp
index e4f953118fd43..1ca9f18e99646 100644
--- a/libcxx/test/std/time/time.clock/time.clock.tai/tai_time.ostream.pass.cpp
+++ b/libcxx/test/std/time/time.clock/time.clock.tai/tai_time.ostream.pass.cpp
@@ -84,8 +84,8 @@ static void test_c() {
              cr::duration<short, std::ratio<1, 2>>{3600}}) == SV("1958-01-01 00:30:00.0"));
   assert(stream_c_locale<CharT>(cr::tai_time<cr::duration<int, std::ratio<1, 4>>>{
              cr::duration<int, std::ratio<1, 4>>{3600}}) == SV("1958-01-01 00:15:00.00"));
-  assert(stream_c_locale<CharT>(cr::tai_time<cr::duration<long, std::ratio<1, 10>>>{
-             cr::duration<long, std::ratio<1, 10>>{36611}}) == SV("1958-01-01 01:01:01.1"));
+  assert(stream_c_locale<CharT>(cr::tai_time<cr::duration<long long, std::ratio<1, 10>>>{
+             cr::duration<long long, std::ratio<1, 10>>{36611}}) == SV("1958-01-01 01:01:01.1"));
   assert(stream_c_locale<CharT>(cr::tai_time<cr::duration<long long, std::ratio<1, 100>>>{
              cr::duration<long long, std::ratio<1, 100>>{12'345'678'9010}}) == SV("1997-02-13 23:31:30.10"));
 }
@@ -112,8 +112,8 @@ static void test_fr_FR() {
              cr::duration<short, std::ratio<1, 2>>{3600}}) == SV("1958-01-01 00:30:00,0"));
   assert(stream_fr_FR_locale<CharT>(cr::tai_time<cr::duration<int, std::ratio<1, 4>>>{
              cr::duration<int, std::ratio<1, 4>>{3600}}) == SV("1958-01-01 00:15:00,00"));
-  assert(stream_fr_FR_locale<CharT>(cr::tai_time<cr::duration<long, std::ratio<1, 10>>>{
-             cr::duration<long, std::ratio<1, 10>>{36611}}) == SV("1958-01-01 01:01:01,1"));
+  assert(stream_fr_FR_locale<CharT>(cr::tai_time<cr::duration<long long, std::ratio<1, 10>>>{
+             cr::duration<long long, std::ratio<1, 10>>{36611}}) == SV("1958-01-01 01:01:01,1"));
   assert(stream_fr_FR_locale<CharT>(cr::tai_time<cr::duration<long long, std::ratio<1, 100>>>{
              cr::duration<long long, std::ratio<1, 100>>{12'345'678'9010}}) == SV("1997-02-13 23:31:30,10"));
 }
@@ -140,8 +140,8 @@ static void test_ja_JP() {
              cr::duration<short, std::ratio<1, 2>>{3600}}) == SV("1958-01-01 00:30:00.0"));
   assert(stream_ja_JP_locale<CharT>(cr::tai_time<cr::duration<int, std::ratio<1, 4>>>{
              cr::duration<int, std::ratio<1, 4>>{3600}}) == SV("1958-01-01 00:15:00.00"));
-  assert(stream_ja_JP_locale<CharT>(cr::tai_time<cr::duration<long, std::ratio<1, 10>>>{
-             cr::duration<long, std::ratio<1, 10>>{36611}}) == SV("1958-01-01 01:01:01.1"));
+  assert(stream_ja_JP_locale<CharT>(cr::tai_time<cr::duration<long long, std::ratio<1, 10>>>{
+             cr::duration<long long, std::ratio<1, 10>>{36611}}) == SV("1958-01-01 01:01:01.1"));
   assert(stream_ja_JP_locale<CharT>(cr::tai_time<cr::duration<long long, std::ratio<1, 100>>>{
              cr::duration<long long, std::ratio<1, 100>>{12'345'678'9010}}) == SV("1997-02-13 23:31:30.10"));
 }

- The Standard wording, [time.format]/13, is similar to TAI formatting in that it's equivalent to formatting a `sys_time` with a fixed offset. Leap seconds should not be considered. - Tests need to be adjusted by adding the number of leap seconds between the GPS epoch and the tested date, which is 15s for 2010 and 18s for 2019. - The TAI and GPS tests using `meow_time<cr::duration<long, std::ratio<1, 10>>>` should use `long long` because the offset will overflow a 32-bit signed integer.

llvm-ci · 2026-02-24T19:02:31Z

LLVM Buildbot has detected a new failure on builder sanitizer-ppc64le-linux running on ppc64le-sanitizer while building libcxx at step 2 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/72/builds/17356

Here is the relevant piece of the build log for the reference

Step 2 (annotate) failure: 'python ../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py' (failure) (timed out)
...
-- Installing: /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build/lib/tsan/libcxx_tsan_powerpc64le/share/libc++/v1/std.compat/cwctype.inc
-- Installing: /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build/lib/tsan/libcxx_tsan_powerpc64le/share/libc++/v1/std.cppm
-- Installing: /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build/lib/tsan/libcxx_tsan_powerpc64le/share/libc++/v1/std.compat.cppm
-- Installing: /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build/lib/tsan/libcxx_tsan_powerpc64le/lib/libc++.modules.json
[113/115] Generating Msan-powerpc64le-Test
[114/115] Running compiler_rt regression tests
-- Testing: 5320 tests, 1152 workers --
llvm-lit: /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/llvm/utils/lit/lit/discovery.py:273: warning: input '/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build/test/interception/Unit' contained no tests
llvm-lit: /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/llvm/utils/lit/lit/discovery.py:273: warning: input '/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build/test/sanitizer_common/Unit' contained no tests
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60
FAIL: SanitizerCommon-lsan-powerpc64le-Linux :: Linux/getpwnam_r_invalid_user.cpp (3344 of 5320)
******************** TEST 'SanitizerCommon-lsan-powerpc64le-Linux :: Linux/getpwnam_r_invalid_user.cpp' FAILED ********************
Exit Code: -6

Command Output (stdout):
--
# RUN: at line 2
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/bin/clang  --driver-mode=g++ -gline-tables-only -fsanitize=leak  -m64 -fno-function-sections -funwind-tables -nobuiltininc -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/include -idirafter /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/lib/clang/23/include -resource-dir=/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build -Wl,-rpath,/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build/lib/linux  -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test -ldl -O0 -g /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/getpwnam_r_invalid_user.cpp -o /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build/test/sanitizer_common/lsan-powerpc64le-Linux/Linux/Output/getpwnam_r_invalid_user.cpp.tmp &&  /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build/test/sanitizer_common/lsan-powerpc64le-Linux/Linux/Output/getpwnam_r_invalid_user.cpp.tmp
# executed command: /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/bin/clang --driver-mode=g++ -gline-tables-only -fsanitize=leak -m64 -fno-function-sections -funwind-tables -nobuiltininc -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/include -idirafter /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/lib/clang/23/include -resource-dir=/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build -Wl,-rpath,/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build/lib/linux -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test -ldl -O0 -g /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/getpwnam_r_invalid_user.cpp -o /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build/test/sanitizer_common/lsan-powerpc64le-Linux/Linux/Output/getpwnam_r_invalid_user.cpp.tmp
# executed command: /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build/test/sanitizer_common/lsan-powerpc64le-Linux/Linux/Output/getpwnam_r_invalid_user.cpp.tmp
# .---command stderr------------
# | Result: 110
# | getpwnam_r_invalid_user.cpp.tmp: /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/getpwnam_r_invalid_user.cpp:19: int main(): Assertion `res == 0 || res == ENOENT' failed.
# `-----------------------------
# error: command failed with exit status: -6

--

********************
command timed out: 1800 seconds without output running [b'python', b'../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py'], attempting to kill
process killed by signal 9
program finished with exit code -1
elapsedTime=12269.872064
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..
Step 14 (test standalone compiler-rt) failure: test standalone compiler-rt (failure)
...
-- Installing: /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build/lib/tsan/libcxx_tsan_powerpc64le/share/libc++/v1/std.compat/cwctype.inc
-- Installing: /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build/lib/tsan/libcxx_tsan_powerpc64le/share/libc++/v1/std.cppm
-- Installing: /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build/lib/tsan/libcxx_tsan_powerpc64le/share/libc++/v1/std.compat.cppm
-- Installing: /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build/lib/tsan/libcxx_tsan_powerpc64le/lib/libc++.modules.json
[113/115] Generating Msan-powerpc64le-Test
[114/115] Running compiler_rt regression tests
-- Testing: 5320 tests, 1152 workers --
llvm-lit: /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/llvm/utils/lit/lit/discovery.py:273: warning: input '/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build/test/interception/Unit' contained no tests
llvm-lit: /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/llvm/utils/lit/lit/discovery.py:273: warning: input '/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build/test/sanitizer_common/Unit' contained no tests
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60
FAIL: SanitizerCommon-lsan-powerpc64le-Linux :: Linux/getpwnam_r_invalid_user.cpp (3344 of 5320)
******************** TEST 'SanitizerCommon-lsan-powerpc64le-Linux :: Linux/getpwnam_r_invalid_user.cpp' FAILED ********************
Exit Code: -6

Command Output (stdout):
--
# RUN: at line 2
/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/bin/clang  --driver-mode=g++ -gline-tables-only -fsanitize=leak  -m64 -fno-function-sections -funwind-tables -nobuiltininc -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/include -idirafter /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/lib/clang/23/include -resource-dir=/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build -Wl,-rpath,/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build/lib/linux  -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test -ldl -O0 -g /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/getpwnam_r_invalid_user.cpp -o /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build/test/sanitizer_common/lsan-powerpc64le-Linux/Linux/Output/getpwnam_r_invalid_user.cpp.tmp &&  /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build/test/sanitizer_common/lsan-powerpc64le-Linux/Linux/Output/getpwnam_r_invalid_user.cpp.tmp
# executed command: /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/bin/clang --driver-mode=g++ -gline-tables-only -fsanitize=leak -m64 -fno-function-sections -funwind-tables -nobuiltininc -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/include -idirafter /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/build_default/lib/clang/23/include -resource-dir=/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build -Wl,-rpath,/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build/lib/linux -I/home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test -ldl -O0 -g /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/getpwnam_r_invalid_user.cpp -o /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build/test/sanitizer_common/lsan-powerpc64le-Linux/Linux/Output/getpwnam_r_invalid_user.cpp.tmp
# executed command: /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/compiler_rt_build/test/sanitizer_common/lsan-powerpc64le-Linux/Linux/Output/getpwnam_r_invalid_user.cpp.tmp
# .---command stderr------------
# | Result: 110
# | getpwnam_r_invalid_user.cpp.tmp: /home/buildbots/llvm-external-buildbots/workers/ppc64le-sanitizer/sanitizer-ppc64le/build/llvm-project/compiler-rt/test/sanitizer_common/TestCases/Linux/getpwnam_r_invalid_user.cpp:19: int main(): Assertion `res == 0 || res == ENOENT' failed.
# `-----------------------------
# error: command failed with exit status: -6

--

********************

command timed out: 1800 seconds without output running [b'python', b'../sanitizer_buildbot/sanitizers/zorg/buildbot/builders/sanitizers/buildbot_selector.py'], attempting to kill
process killed by signal 9
program finished with exit code -1
elapsedTime=12269.872064
Testing:  0.. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90..

MattStephanson requested a review from a team as a code owner February 15, 2026 18:28

llvmbot added the libc++ libc++ C++ Standard Library. Not GNU libstdc++. Not libc++abi. label Feb 15, 2026

MattStephanson marked this pull request as draft February 15, 2026 18:44

MattStephanson added 2 commits February 15, 2026 22:01

[libc++] Update [time.syn] test

32657a6

MattStephanson force-pushed the format-gps-time branch from efa4d2e to 32657a6 Compare February 16, 2026 06:28

MattStephanson marked this pull request as ready for review February 16, 2026 06:29

ldionne approved these changes Feb 23, 2026

View reviewed changes

ldionne merged commit a287555 into llvm:main Feb 23, 2026
83 checks passed

StephanTLavavej mentioned this pull request Feb 25, 2026

Update llvm-project microsoft/STL#6109

Merged

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[libc++] fix `gps_time` formatting and related tests - #181560

[libc++] fix `gps_time` formatting and related tests#181560
ldionne merged 2 commits into
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MattStephanson:format-gps-time

MattStephanson commented Feb 15, 2026 •

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MattStephanson commented Feb 15, 2026 •

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