[libc] Add -Wextra for libc tests #153321

vinay-deshmukh · 2025-08-13T00:17:26Z

RE apply https://github.com/llvm/llvm-project/pull/133643/commits#top

…wextra

This reverts commit 983eab7.

…wextra

github-actions · 2025-08-13T00:19:16Z

⚠️ We detected that you are using a GitHub private e-mail address to contribute to the repo.
Please turn off Keep my email addresses private setting in your account.
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bassiounix · 2025-08-13T13:45:34Z

Make your git email public

vinay-deshmukh · 2025-09-11T23:57:06Z

Make your git email public

@bassiounix This is done now as far as I know. Let me know if there's any other blocker!

vinay-deshmukh · 2025-09-21T21:53:15Z

@lntue can you re-approve (and merge) when you get a chance? Thank you!

llvm-ci · 2025-09-22T17:00:38Z

LLVM Buildbot has detected a new failure on builder libc-aarch64-ubuntu-fullbuild-dbg running on libc-aarch64-ubuntu while building libc at step 4 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/71/builds/31883

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

Step 4 (annotate) failure: 'python ../llvm-zorg/zorg/buildbot/builders/annotated/libc-linux.py ...' (failure)
...
[2999/3080] Running unit test libc.test.include.fpclassify_test.__unit__
[==========] Running 1 test from 1 test suite.
[ RUN      ] LlvmLibcFpClassifyTest.SpecialNumbers
[       OK ] LlvmLibcFpClassifyTest.SpecialNumbers (3 us)
Ran 1 tests.  PASS: 1  FAIL: 0
[3000/3080] Building C object libc/test/include/CMakeFiles/libc.test.include.isnormal_c_test.__unit__.__build__.dir/isnormal_test.c.o
[3001/3080] Building C object libc/test/include/CMakeFiles/libc.test.include.isinf_c_test.__unit__.__build__.dir/isinf_test.c.o
[3002/3080] Linking CXX executable libc/test/include/libc.test.include.complex_test.__unit__.__build__
[3003/3080] Linking C executable libc/test/include/libc.test.include.isnormal_c_test.__unit__.__build__
[3004/3080] Building C object libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o
FAILED: libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o 
/usr/bin/clang -DLIBC_NAMESPACE=__llvm_libc_20_0_0_git -D_DEBUG -I/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc -isystem libc/include -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -Wimplicit-fallthrough -Wcovered-switch-default -Wno-comment -Wstring-conversion -fdiagnostics-color -g -DLIBC_QSORT_IMPL=LIBC_QSORT_QUICK_SORT -DLIBC_ADD_NULL_CHECKS -DLIBC_ERRNO_MODE=LIBC_ERRNO_MODE_DEFAULT -DLIBC_THREAD_MODE=LIBC_THREAD_MODE_PLATFORM -fpie -DLIBC_FULL_BUILD -ffreestanding -fno-exceptions -fno-unwind-tables -fno-asynchronous-unwind-tables -Wextra -Wconversion -Wno-sign-conversion -Wimplicit-fallthrough -Wwrite-strings -Wno-c99-extensions -Wno-gnu-imaginary-constant -Wno-pedantic -Wstrict-prototypes -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wthread-safety -DLIBC_TEST=UNIT -Wall -Werror -MD -MT libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o -MF libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o.d -o libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o -c /home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_test.c
In file included from /home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_test.c:23:
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected expression
STDBIT_STUB_FUNCTION(stdc_leading_zeros, 0xA)
^
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:20:28: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                           ^
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected parameter declarator
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:20:27: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                          ^
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected ')'
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:20:44: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                                           ^
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: note: to match this '('
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:20:26: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                         ^
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: this old-style function definition is not preceded by a prototype [-Werror,-Wstrict-prototypes]
STDBIT_STUB_FUNCTION(stdc_leading_zeros, 0xA)
^
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:20:26: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                         ^
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected expression
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:23:28: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_us([[maybe_unused]] unsigned short x) {                 \
                           ^
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected parameter declarator
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:23:27: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_us([[maybe_unused]] unsigned short x) {                 \
                          ^
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected ')'
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:23:44: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_us([[maybe_unused]] unsigned short x) {                 \
                                           ^
Step 8 (libc-unit-tests) failure: libc-unit-tests (failure)
...
[2999/3080] Running unit test libc.test.include.fpclassify_test.__unit__
[==========] Running 1 test from 1 test suite.
[ RUN      ] LlvmLibcFpClassifyTest.SpecialNumbers
[       OK ] LlvmLibcFpClassifyTest.SpecialNumbers (3 us)
Ran 1 tests.  PASS: 1  FAIL: 0
[3000/3080] Building C object libc/test/include/CMakeFiles/libc.test.include.isnormal_c_test.__unit__.__build__.dir/isnormal_test.c.o
[3001/3080] Building C object libc/test/include/CMakeFiles/libc.test.include.isinf_c_test.__unit__.__build__.dir/isinf_test.c.o
[3002/3080] Linking CXX executable libc/test/include/libc.test.include.complex_test.__unit__.__build__
[3003/3080] Linking C executable libc/test/include/libc.test.include.isnormal_c_test.__unit__.__build__
[3004/3080] Building C object libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o
FAILED: libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o 
/usr/bin/clang -DLIBC_NAMESPACE=__llvm_libc_20_0_0_git -D_DEBUG -I/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc -isystem libc/include -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -Wimplicit-fallthrough -Wcovered-switch-default -Wno-comment -Wstring-conversion -fdiagnostics-color -g -DLIBC_QSORT_IMPL=LIBC_QSORT_QUICK_SORT -DLIBC_ADD_NULL_CHECKS -DLIBC_ERRNO_MODE=LIBC_ERRNO_MODE_DEFAULT -DLIBC_THREAD_MODE=LIBC_THREAD_MODE_PLATFORM -fpie -DLIBC_FULL_BUILD -ffreestanding -fno-exceptions -fno-unwind-tables -fno-asynchronous-unwind-tables -Wextra -Wconversion -Wno-sign-conversion -Wimplicit-fallthrough -Wwrite-strings -Wno-c99-extensions -Wno-gnu-imaginary-constant -Wno-pedantic -Wstrict-prototypes -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wthread-safety -DLIBC_TEST=UNIT -Wall -Werror -MD -MT libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o -MF libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o.d -o libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o -c /home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_test.c
In file included from /home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_test.c:23:
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected expression
STDBIT_STUB_FUNCTION(stdc_leading_zeros, 0xA)
^
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:20:28: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                           ^
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected parameter declarator
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:20:27: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                          ^
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected ')'
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:20:44: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                                           ^
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: note: to match this '('
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:20:26: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                         ^
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: this old-style function definition is not preceded by a prototype [-Werror,-Wstrict-prototypes]
STDBIT_STUB_FUNCTION(stdc_leading_zeros, 0xA)
^
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:20:26: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                         ^
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected expression
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:23:28: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_us([[maybe_unused]] unsigned short x) {                 \
                           ^
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected parameter declarator
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:23:27: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_us([[maybe_unused]] unsigned short x) {                 \
                          ^
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected ')'
/home/libc-buildbot/libc-aarch64-ubuntu/libc-aarch64-ubuntu-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:23:44: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_us([[maybe_unused]] unsigned short x) {                 \
                                           ^

llvm-ci · 2025-09-22T17:02:16Z

LLVM Buildbot has detected a new failure on builder libc-x86_64-debian-fullbuild-dbg-asan running on libc-x86_64-debian-fullbuild while building libc at step 4 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/171/builds/31078

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

Step 4 (annotate) failure: 'python ../llvm-zorg/zorg/buildbot/builders/annotated/libc-linux.py ...' (failure)
...
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/src/signal/sigaltstack_test.cpp:36:14: warning: implicit conversion loses integer precision: 'int' to 'uint8_t' (aka 'unsigned char') [-Wimplicit-int-conversion]
    var[i] = i;
           ~ ^
1 warning generated.
[4042/4218] Running unit test libc.test.src.locale.locale_test.__unit__
[==========] Running 1 test from 1 test suite.
[ RUN      ] LlvmLibcLocale.DefaultLocale
[       OK ] LlvmLibcLocale.DefaultLocale (17 us)
Ran 1 tests.  PASS: 1  FAIL: 0
[4043/4218] Building C object libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o
FAILED: libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o 
/usr/bin/clang -DLIBC_NAMESPACE=__llvm_libc_20_0_0_git -D_DEBUG -I/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc -isystem /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/build/libc/include -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -Wimplicit-fallthrough -Wcovered-switch-default -Wno-comment -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fno-omit-frame-pointer -fsanitize=address -fdiagnostics-color -g -DLIBC_QSORT_IMPL=LIBC_QSORT_QUICK_SORT -DLIBC_ADD_NULL_CHECKS -DLIBC_ERRNO_MODE=LIBC_ERRNO_MODE_DEFAULT -DLIBC_THREAD_MODE=LIBC_THREAD_MODE_PLATFORM -fpie -DLIBC_FULL_BUILD -ffreestanding -fno-exceptions -fno-unwind-tables -fno-asynchronous-unwind-tables -Wextra -Wconversion -Wno-sign-conversion -Wimplicit-fallthrough -Wwrite-strings -Wno-c99-extensions -Wno-gnu-imaginary-constant -Wno-pedantic -Wstrict-prototypes -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wthread-safety -DLIBC_TEST=UNIT -Wall -Werror -MD -MT libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o -MF libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o.d -o libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o -c /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_test.c
In file included from /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_test.c:23:
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected expression
STDBIT_STUB_FUNCTION(stdc_leading_zeros, 0xA)
^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:20:28: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                           ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected parameter declarator
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:20:27: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                          ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected ')'
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:20:44: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                                           ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:38:1: note: to match this '('
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:20:26: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                         ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: this old-style function definition is not preceded by a prototype [-Werror,-Wstrict-prototypes]
STDBIT_STUB_FUNCTION(stdc_leading_zeros, 0xA)
^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:20:26: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                         ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected expression
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:23:28: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_us([[maybe_unused]] unsigned short x) {                 \
                           ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected parameter declarator
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:23:27: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_us([[maybe_unused]] unsigned short x) {                 \
                          ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected ')'
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:23:44: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_us([[maybe_unused]] unsigned short x) {                 \
                                           ^
Step 8 (libc-unit-tests) failure: libc-unit-tests (failure)
...
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/src/signal/sigaltstack_test.cpp:36:14: warning: implicit conversion loses integer precision: 'int' to 'uint8_t' (aka 'unsigned char') [-Wimplicit-int-conversion]
    var[i] = i;
           ~ ^
1 warning generated.
[4042/4218] Running unit test libc.test.src.locale.locale_test.__unit__
[==========] Running 1 test from 1 test suite.
[ RUN      ] LlvmLibcLocale.DefaultLocale
[       OK ] LlvmLibcLocale.DefaultLocale (17 us)
Ran 1 tests.  PASS: 1  FAIL: 0
[4043/4218] Building C object libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o
FAILED: libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o 
/usr/bin/clang -DLIBC_NAMESPACE=__llvm_libc_20_0_0_git -D_DEBUG -I/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc -isystem /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/build/libc/include -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -Wimplicit-fallthrough -Wcovered-switch-default -Wno-comment -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fno-omit-frame-pointer -fsanitize=address -fdiagnostics-color -g -DLIBC_QSORT_IMPL=LIBC_QSORT_QUICK_SORT -DLIBC_ADD_NULL_CHECKS -DLIBC_ERRNO_MODE=LIBC_ERRNO_MODE_DEFAULT -DLIBC_THREAD_MODE=LIBC_THREAD_MODE_PLATFORM -fpie -DLIBC_FULL_BUILD -ffreestanding -fno-exceptions -fno-unwind-tables -fno-asynchronous-unwind-tables -Wextra -Wconversion -Wno-sign-conversion -Wimplicit-fallthrough -Wwrite-strings -Wno-c99-extensions -Wno-gnu-imaginary-constant -Wno-pedantic -Wstrict-prototypes -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wthread-safety -DLIBC_TEST=UNIT -Wall -Werror -MD -MT libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o -MF libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o.d -o libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o -c /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_test.c
In file included from /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_test.c:23:
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected expression
STDBIT_STUB_FUNCTION(stdc_leading_zeros, 0xA)
^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:20:28: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                           ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected parameter declarator
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:20:27: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                          ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected ')'
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:20:44: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                                           ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:38:1: note: to match this '('
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:20:26: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                         ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: this old-style function definition is not preceded by a prototype [-Werror,-Wstrict-prototypes]
STDBIT_STUB_FUNCTION(stdc_leading_zeros, 0xA)
^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:20:26: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                         ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected expression
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:23:28: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_us([[maybe_unused]] unsigned short x) {                 \
                           ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected parameter declarator
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:23:27: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_us([[maybe_unused]] unsigned short x) {                 \
                          ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected ')'
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg-asan/llvm-project/libc/test/include/stdbit_stub.h:23:44: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_us([[maybe_unused]] unsigned short x) {                 \
                                           ^

llvm-ci · 2025-09-22T17:04:41Z

LLVM Buildbot has detected a new failure on builder libc-x86_64-debian-fullbuild-dbg running on libc-x86_64-debian-fullbuild while building libc at step 4 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/179/builds/31280

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

Step 4 (annotate) failure: 'python ../llvm-zorg/zorg/buildbot/builders/annotated/libc-linux.py ...' (failure)
...
[4043/4235] Running unit test libc.test.src.arpa.inet.htons
[==========] Running 2 tests from 1 test suite.
[ RUN      ] LlvmLibcHtons.SmokeTest
[       OK ] LlvmLibcHtons.SmokeTest (3 us)
[ RUN      ] LlvmLibcHtons.CompleteTest
[       OK ] LlvmLibcHtons.CompleteTest (1 us)
Ran 2 tests.  PASS: 2  FAIL: 0
[4044/4235] Building CXX object libc/test/src/locale/CMakeFiles/libc.test.src.locale.localeconv_test.__unit__.__build__.dir/localeconv_test.cpp.o
[4045/4235] Linking CXX executable libc/test/src/arpa/inet/libc.test.src.arpa.inet.ntohl.__build__
[4046/4235] Building C object libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o
FAILED: libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o 
/usr/bin/clang -DLIBC_NAMESPACE=__llvm_libc_20_0_0_git -D_DEBUG -I/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc -isystem /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/build/libc/include -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -Wimplicit-fallthrough -Wcovered-switch-default -Wno-comment -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -g -DLIBC_QSORT_IMPL=LIBC_QSORT_QUICK_SORT -DLIBC_ADD_NULL_CHECKS -DLIBC_ERRNO_MODE=LIBC_ERRNO_MODE_DEFAULT -DLIBC_THREAD_MODE=LIBC_THREAD_MODE_PLATFORM -fpie -DLIBC_FULL_BUILD -ffreestanding -fno-exceptions -fno-unwind-tables -fno-asynchronous-unwind-tables -Wextra -Wconversion -Wno-sign-conversion -Wimplicit-fallthrough -Wwrite-strings -Wno-c99-extensions -Wno-gnu-imaginary-constant -Wno-pedantic -Wstrict-prototypes -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wthread-safety -DLIBC_TEST=UNIT -Wall -Werror -MD -MT libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o -MF libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o.d -o libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o -c /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_test.c
In file included from /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_test.c:23:
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected expression
STDBIT_STUB_FUNCTION(stdc_leading_zeros, 0xA)
^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:20:28: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                           ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected parameter declarator
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:20:27: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                          ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected ')'
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:20:44: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                                           ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: note: to match this '('
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:20:26: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                         ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: this old-style function definition is not preceded by a prototype [-Werror,-Wstrict-prototypes]
STDBIT_STUB_FUNCTION(stdc_leading_zeros, 0xA)
^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:20:26: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                         ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected expression
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:23:28: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_us([[maybe_unused]] unsigned short x) {                 \
                           ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected parameter declarator
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:23:27: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_us([[maybe_unused]] unsigned short x) {                 \
                          ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected ')'
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:23:44: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_us([[maybe_unused]] unsigned short x) {                 \
                                           ^
Step 8 (libc-unit-tests) failure: libc-unit-tests (failure)
...
[4043/4235] Running unit test libc.test.src.arpa.inet.htons
[==========] Running 2 tests from 1 test suite.
[ RUN      ] LlvmLibcHtons.SmokeTest
[       OK ] LlvmLibcHtons.SmokeTest (3 us)
[ RUN      ] LlvmLibcHtons.CompleteTest
[       OK ] LlvmLibcHtons.CompleteTest (1 us)
Ran 2 tests.  PASS: 2  FAIL: 0
[4044/4235] Building CXX object libc/test/src/locale/CMakeFiles/libc.test.src.locale.localeconv_test.__unit__.__build__.dir/localeconv_test.cpp.o
[4045/4235] Linking CXX executable libc/test/src/arpa/inet/libc.test.src.arpa.inet.ntohl.__build__
[4046/4235] Building C object libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o
FAILED: libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o 
/usr/bin/clang -DLIBC_NAMESPACE=__llvm_libc_20_0_0_git -D_DEBUG -I/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc -isystem /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/build/libc/include -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -Wimplicit-fallthrough -Wcovered-switch-default -Wno-comment -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -g -DLIBC_QSORT_IMPL=LIBC_QSORT_QUICK_SORT -DLIBC_ADD_NULL_CHECKS -DLIBC_ERRNO_MODE=LIBC_ERRNO_MODE_DEFAULT -DLIBC_THREAD_MODE=LIBC_THREAD_MODE_PLATFORM -fpie -DLIBC_FULL_BUILD -ffreestanding -fno-exceptions -fno-unwind-tables -fno-asynchronous-unwind-tables -Wextra -Wconversion -Wno-sign-conversion -Wimplicit-fallthrough -Wwrite-strings -Wno-c99-extensions -Wno-gnu-imaginary-constant -Wno-pedantic -Wstrict-prototypes -Wextra-semi -Wnewline-eof -Wnonportable-system-include-path -Wthread-safety -DLIBC_TEST=UNIT -Wall -Werror -MD -MT libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o -MF libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o.d -o libc/test/include/CMakeFiles/libc.test.include.stdbit_c_test.__unit__.__build__.dir/stdbit_test.c.o -c /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_test.c
In file included from /home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_test.c:23:
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected expression
STDBIT_STUB_FUNCTION(stdc_leading_zeros, 0xA)
^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:20:28: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                           ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected parameter declarator
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:20:27: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                          ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected ')'
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:20:44: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                                           ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: note: to match this '('
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:20:26: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                         ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: this old-style function definition is not preceded by a prototype [-Werror,-Wstrict-prototypes]
STDBIT_STUB_FUNCTION(stdc_leading_zeros, 0xA)
^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:20:26: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_uc([[maybe_unused]] unsigned char x) {                  \
                         ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected expression
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:23:28: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_us([[maybe_unused]] unsigned short x) {                 \
                           ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected parameter declarator
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:23:27: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_us([[maybe_unused]] unsigned short x) {                 \
                          ^
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:38:1: error: expected ')'
/home/llvm-libc-buildbot/buildbot-worker/libc-x86_64-debian-fullbuild/libc-x86_64-debian-fullbuild-dbg/llvm-project/libc/test/include/stdbit_stub.h:23:44: note: expanded from macro 'STDBIT_STUB_FUNCTION'
  unsigned FUNC_NAME##_us([[maybe_unused]] unsigned short x) {                 \
                                           ^

llvm-ci · 2025-09-22T18:32:15Z

LLVM Buildbot has detected a new failure on builder libc-riscv32-qemu-yocto-fullbuild-dbg running on rv32gc-qemu-system while building libc at step 4 "annotate".

Full details are available at: https://lab.llvm.org/buildbot/#/builders/196/builds/12278

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

Step 4 (annotate) failure: 'python ../llvm-zorg/zorg/buildbot/builders/annotated/libc-linux.py ...' (failure)
...
Ran 7 tests.  PASS: 7  FAIL: 0
[4737/4872] Running unit test libc.test.src.poll.poll_test
sh: line 1: /timer.24855: Permission denied
[==========] Running 2 tests from 1 test suite.
[ RUN      ] LlvmLibcPollTest.SmokeTest
[       OK ] LlvmLibcPollTest.SmokeTest (479 us)
[ RUN      ] LlvmLibcPollTest.SmokeFailureTest
[       OK ] LlvmLibcPollTest.SmokeFailureTest (152 us)
Ran 2 tests.  PASS: 2  FAIL: 0
[4738/4872] Running unit test libc.test.src.fcntl.openat_test
FAILED: libc/test/src/fcntl/CMakeFiles/libc.test.src.fcntl.openat_test /home/libcrv32buildbot/bbroot/libc-riscv32-qemu-yocto-fullbuild-dbg/build/libc/test/src/fcntl/CMakeFiles/libc.test.src.fcntl.openat_test 
cd /home/libcrv32buildbot/bbroot/libc-riscv32-qemu-yocto-fullbuild-dbg/build/libc/test/src/fcntl && /home/libcrv32buildbot/cross.sh /home/libcrv32buildbot/bbroot/libc-riscv32-qemu-yocto-fullbuild-dbg/build/libc/test/src/fcntl/libc.test.src.fcntl.openat_test.__build__
sh: line 1: /timer.24870: Permission denied
[==========] Running 2 tests from 1 test suite.
[ RUN      ] LlvmLibcOpenAtTest.OpenAndReadTest
/home/libcrv32buildbot/bbroot/libc-riscv32-qemu-yocto-fullbuild-dbg/llvm-project/libc/test/src/fcntl/openat_test.cpp:32: FAILURE
      Expected: 0
      Which is: 0
To be equal to: static_cast<int>(libc_errno)
      Which is: 2
/home/libcrv32buildbot/bbroot/libc-riscv32-qemu-yocto-fullbuild-dbg/llvm-project/libc/test/UnitTest/ErrnoCheckingTest.h:47: FAILURE
      Expected: 0
      Which is: 0
To be equal to: static_cast<int>(libc_errno)
      Which is: 2
[  FAILED  ] LlvmLibcOpenAtTest.OpenAndReadTest
[ RUN      ] LlvmLibcOpenAtTest.FailTest
[       OK ] LlvmLibcOpenAtTest.FailTest (733 us)
Ran 2 tests.  PASS: 1  FAIL: 1
[4739/4872] Running unit test libc.test.src.inttypes.imaxdiv_test.__unit__
sh: line 1: /timer.24871: Permission denied
[==========] Running 1 test from 1 test suite.
[ RUN      ] LlvmLibcDivTest.SimpleTestimaxdiv_t
[       OK ] LlvmLibcDivTest.SimpleTestimaxdiv_t (894 us)
Ran 1 tests.  PASS: 1  FAIL: 0
[4740/4872] Running unit test libc.test.src.sched.affinity_test
sh: line 1: /timer.24913: Permission denied
[==========] Running 2 tests from 1 test suite.
[ RUN      ] LlvmLibcSchedAffinityTest.SmokeTest
[       OK ] LlvmLibcSchedAffinityTest.SmokeTest (1 ms)
[ RUN      ] LlvmLibcSchedAffinityTest.BadMask
[       OK ] LlvmLibcSchedAffinityTest.BadMask (800 us)
Ran 2 tests.  PASS: 2  FAIL: 0
[4741/4872] Running unit test libc.test.src.sched.yield_test
sh: line 1: /timer.24922: Permission denied
[==========] Running 1 test from 1 test suite.
[ RUN      ] LlvmLibcSchedYieldTest.SmokeTest
[       OK ] LlvmLibcSchedYieldTest.SmokeTest (574 us)
Ran 1 tests.  PASS: 1  FAIL: 0
Step 8 (libc-unit-tests) failure: libc-unit-tests (failure)
...
Ran 7 tests.  PASS: 7  FAIL: 0
[4737/4872] Running unit test libc.test.src.poll.poll_test
sh: line 1: /timer.24855: Permission denied
[==========] Running 2 tests from 1 test suite.
[ RUN      ] LlvmLibcPollTest.SmokeTest
[       OK ] LlvmLibcPollTest.SmokeTest (479 us)
[ RUN      ] LlvmLibcPollTest.SmokeFailureTest
[       OK ] LlvmLibcPollTest.SmokeFailureTest (152 us)
Ran 2 tests.  PASS: 2  FAIL: 0
[4738/4872] Running unit test libc.test.src.fcntl.openat_test
FAILED: libc/test/src/fcntl/CMakeFiles/libc.test.src.fcntl.openat_test /home/libcrv32buildbot/bbroot/libc-riscv32-qemu-yocto-fullbuild-dbg/build/libc/test/src/fcntl/CMakeFiles/libc.test.src.fcntl.openat_test 
cd /home/libcrv32buildbot/bbroot/libc-riscv32-qemu-yocto-fullbuild-dbg/build/libc/test/src/fcntl && /home/libcrv32buildbot/cross.sh /home/libcrv32buildbot/bbroot/libc-riscv32-qemu-yocto-fullbuild-dbg/build/libc/test/src/fcntl/libc.test.src.fcntl.openat_test.__build__
sh: line 1: /timer.24870: Permission denied
[==========] Running 2 tests from 1 test suite.
[ RUN      ] LlvmLibcOpenAtTest.OpenAndReadTest
/home/libcrv32buildbot/bbroot/libc-riscv32-qemu-yocto-fullbuild-dbg/llvm-project/libc/test/src/fcntl/openat_test.cpp:32: FAILURE
      Expected: 0
      Which is: 0
To be equal to: static_cast<int>(libc_errno)
      Which is: 2
/home/libcrv32buildbot/bbroot/libc-riscv32-qemu-yocto-fullbuild-dbg/llvm-project/libc/test/UnitTest/ErrnoCheckingTest.h:47: FAILURE
      Expected: 0
      Which is: 0
To be equal to: static_cast<int>(libc_errno)
      Which is: 2
[  FAILED  ] LlvmLibcOpenAtTest.OpenAndReadTest
[ RUN      ] LlvmLibcOpenAtTest.FailTest
[       OK ] LlvmLibcOpenAtTest.FailTest (733 us)
Ran 2 tests.  PASS: 1  FAIL: 1
[4739/4872] Running unit test libc.test.src.inttypes.imaxdiv_test.__unit__
sh: line 1: /timer.24871: Permission denied
[==========] Running 1 test from 1 test suite.
[ RUN      ] LlvmLibcDivTest.SimpleTestimaxdiv_t
[       OK ] LlvmLibcDivTest.SimpleTestimaxdiv_t (894 us)
Ran 1 tests.  PASS: 1  FAIL: 0
[4740/4872] Running unit test libc.test.src.sched.affinity_test
sh: line 1: /timer.24913: Permission denied
[==========] Running 2 tests from 1 test suite.
[ RUN      ] LlvmLibcSchedAffinityTest.SmokeTest
[       OK ] LlvmLibcSchedAffinityTest.SmokeTest (1 ms)
[ RUN      ] LlvmLibcSchedAffinityTest.BadMask
[       OK ] LlvmLibcSchedAffinityTest.BadMask (800 us)
Ran 2 tests.  PASS: 2  FAIL: 0
[4741/4872] Running unit test libc.test.src.sched.yield_test
sh: line 1: /timer.24922: Permission denied
[==========] Running 1 test from 1 test suite.
[ RUN      ] LlvmLibcSchedYieldTest.SmokeTest
[       OK ] LlvmLibcSchedYieldTest.SmokeTest (574 us)
Ran 1 tests.  PASS: 1  FAIL: 0

vinay-deshmukh added 30 commits March 30, 2025 13:15

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Merge remote-tracking branch 'upstream/main' into vinay-issue-119281-…

ffca61e

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remove werror

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Merge remote-tracking branch 'upstream/main' into vinay-issue-119281-…

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Revert "remove werror"

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This reverts commit 983eab7.

fix buildkit

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vinay-deshmukh added 6 commits April 17, 2025 20:28

remove werror

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Merge remote-tracking branch 'upstream/main' into vinay-issue-119281-…

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Merge branch 'main' into vinay-issue-119281-wextra

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Merge branch 'main' into vinay-issue-119281-wextra

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Merge branch 'main' into vinay-issue-119281-wextra

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vinay-deshmukh mentioned this pull request Aug 13, 2025

[libc] re-enable warnings for tests #119281

Open

vinay-deshmukh added 2 commits August 13, 2025 06:11

Merge branch 'main' into vinay-issue-119281-wextra

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Merge branch 'main' into vinay-issue-119281-wextra

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Merge branch 'main' into vinay-issue-119281-wextra

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lntue approved these changes Sep 12, 2025

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Merge branch 'main' into vinay-issue-119281-wextra

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lntue merged commit beb743b into llvm:main Sep 22, 2025
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