[libc-commits] [libc] [libc] Add -Wextra for libc tests (PR #153321)
LLVM Continuous Integration via libc-commits
libc-commits at lists.llvm.org
Mon Sep 22 10:05:04 PDT 2025
llvm-ci wrote:
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
<details>
<summary>Here is the relevant piece of the build log for the reference</summary>
```
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) { \
^
```
</details>
https://github.com/llvm/llvm-project/pull/153321
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