diff options
| author | H.J. Lu <hjl.tools@gmail.com> | 2024-12-23 05:12:02 +0800 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2024-12-23 06:28:55 +0800 |
| commit | 31c47126f4b5203eb5f72bb9dc8ceb09cacb4574 (patch) | |
| tree | 30eea4636d6980d7ad7c13f8ff48926d582689e3 | |
| parent | cb74bafbb51ba291676ab7ed3b690a47ffebc567 (diff) | |
| download | glibc-31c47126f4b5203eb5f72bb9dc8ceb09cacb4574.zip glibc-31c47126f4b5203eb5f72bb9dc8ceb09cacb4574.tar.gz glibc-31c47126f4b5203eb5f72bb9dc8ceb09cacb4574.tar.bz2 | |
string: Suppress Clang warnings on tester.c
Add a configure check for -Wno-fortify-source to suppress Clang warnings
on string/tester.c, like:
tester.c:385:10: error: 'strncat' size argument is too large; destination buffer has size 50, but size argument is 99 [-Werror,-Wfortify-source]
385 | check (strncat (one, "lmn", 99) == one, 1); /* Returned value. */
Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
Reviewed-by: Sam James <sam@gentoo.org>
| -rwxr-xr-x | configure | 34 | ||||
| -rw-r--r-- | configure.ac | 10 | ||||
| -rw-r--r-- | string/Makefile | 7 |
3 files changed, 49 insertions, 2 deletions
@@ -8003,6 +8003,40 @@ test-config-cflags-wno-restrict = $libc_cv_test_cflags_wno_restrict" saved_CC="$CC" CC="$TEST_CC" +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking -Wno-fortify-source in testing" >&5 +printf %s "checking -Wno-fortify-source in testing... " >&6; } +if test ${libc_cv_test_cflags_wno_fortify_source+y} +then : + printf %s "(cached) " >&6 +else case e in #( + e) if { ac_try='${CC-cc} -c -Werror -Wno-fortify-source -xc /dev/null -S -o /dev/null' + { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5 + (eval $ac_try) 2>&5 + ac_status=$? + printf "%s\n" "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5 + test $ac_status = 0; }; } +then : + libc_cv_test_cflags_wno_fortify_source=-Wno-fortify-source +else case e in #( + e) libc_cv_test_cflags_wno_fortify_source= + ;; +esac +fi ;; +esac +fi +{ printf "%s\n" "$as_me:${as_lineno-$LINENO}: result: $libc_cv_test_cflags_wno_fortify_source" >&5 +printf "%s\n" "$libc_cv_test_cflags_wno_fortify_source" >&6; } + +CC="$saved_CC" + + +config_vars="$config_vars +test-config-cflags-wno-fortify-source = $libc_cv_test_cflags_wno_fortify_source" + + + +saved_CC="$CC" +CC="$TEST_CC" { printf "%s\n" "$as_me:${as_lineno-$LINENO}: checking -finput-charset=ascii in testing" >&5 printf %s "checking -finput-charset=ascii in testing... " >&6; } if test ${libc_cv_test_cflags_finput_charset_ascii+y} diff --git a/configure.ac b/configure.ac index 8c2eecf..a535a09 100644 --- a/configure.ac +++ b/configure.ac @@ -1589,6 +1589,16 @@ LIBC_TRY_TEST_CC_OPTION([-Wno-restrict], LIBC_CONFIG_VAR([test-config-cflags-wno-restrict], [$libc_cv_test_cflags_wno_restrict]) +dnl Check if TEST_CC supports -Wno-fortify-source. +LIBC_TRY_TEST_CC_OPTION([-Wno-fortify-source], + [-c -Werror -Wno-fortify-source], + libc_cv_test_cflags_wno_fortify_source, + [libc_cv_test_cflags_wno_fortify_source=-Wno-fortify-source], + [libc_cv_test_cflags_wno_fortify_source=] +) +LIBC_CONFIG_VAR([test-config-cflags-wno-fortify-source], + [$libc_cv_test_cflags_wno_fortify_source]) + dnl Check if TEST_CC supports -finput-charset=ascii. LIBC_TRY_TEST_CC_OPTION([-finput-charset=ascii], [-c -Werror -finput-charset=ascii], diff --git a/string/Makefile b/string/Makefile index 1dff405..ac70d63 100644 --- a/string/Makefile +++ b/string/Makefile @@ -252,8 +252,11 @@ endif include ../Rules -CFLAGS-inl-tester.c += -fno-builtin -CFLAGS-noinl-tester.c += -fno-builtin +CFLAGS-tester.c += $(test-config-cflags-wno-fortify-source) +CFLAGS-inl-tester.c += -fno-builtin \ + $(test-config-cflags-wno-fortify-source) +CFLAGS-noinl-tester.c += -fno-builtin \ + $(test-config-cflags-wno-fortify-source) CFLAGS-tst-strlen.c += -fno-builtin CFLAGS-stratcliff.c += -fno-builtin CFLAGS-test-ffs.c += -fno-builtin |