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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2024-03-12 13:21:20 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2024-03-19 14:53:30 -0300 |
| commit | 3d53d18fc71c5d9ef4773b8bce04d54b80181926 (patch) | |
| tree | 17f7daad66b3d9416a2373eeae5188730d9cbcbf /configure.ac | |
| parent | 64c7e344289ed085517c2227d8e3b06388242c13 (diff) | |
| download | glibc-3d53d18fc71c5d9ef4773b8bce04d54b80181926.tar.gz glibc-3d53d18fc71c5d9ef4773b8bce04d54b80181926.tar.xz glibc-3d53d18fc71c5d9ef4773b8bce04d54b80181926.zip | |
elf: Enable TLS descriptor tests on aarch64
The aarch64 uses 'trad' for traditional tls and 'desc' for tls descriptors, but unlike other targets it defaults to 'desc'. The gnutls2 configure check does not set aarch64 as an ABI that uses TLS descriptors, which then disable somes stests. Also rename the internal machinery fron gnu2 to tls descriptors. Checked on aarch64-linux-gnu. Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/configure.ac b/configure.ac index 19b88a47a5..bdc385d03c 100644 --- a/configure.ac +++ b/configure.ac @@ -442,6 +442,9 @@ libc_config_ok=no # whether to use such directories. with_fp_cond=1 +# A preconfigure script may define another name to TLS descriptor variant +mtls_descriptor=gnu2 + dnl Let sysdeps/*/preconfigure act here. LIBC_PRECONFIGURE([$srcdir], [for sysdeps]) @@ -1287,7 +1290,7 @@ fi rm -f conftest*]) AC_SUBST(libc_cv_has_glob_dat) -AC_CACHE_CHECK([for -mtls-dialect=gnu2], libc_cv_mtls_dialect_gnu2, +AC_CACHE_CHECK([for tls descriptor support], libc_cv_mtls_descriptor, [dnl cat > conftest.c <<EOF __thread int i; @@ -1296,16 +1299,16 @@ void foo (void) i = 10; } EOF -if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -fPIC -mtls-dialect=gnu2 -nostdlib -nostartfiles +if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS -fPIC -mtls-dialect=$mtls_descriptor -nostdlib -nostartfiles -shared conftest.c -o conftest 1>&AS_MESSAGE_LOG_FD]) then - libc_cv_mtls_dialect_gnu2=yes + libc_cv_mtls_descriptor=$mtls_descriptor else - libc_cv_mtls_dialect_gnu2=no + libc_cv_mtls_descriptor=no fi rm -f conftest*]) -AC_SUBST(libc_cv_mtls_dialect_gnu2) -LIBC_CONFIG_VAR([have-mtls-dialect-gnu2], [$libc_cv_mtls_dialect_gnu2]) +AC_SUBST(libc_cv_mtls_descriptor) +LIBC_CONFIG_VAR([have-mtls-descriptor], [$libc_cv_mtls_descriptor]) dnl clang emits an warning for a double alias redirection, to warn the dnl original symbol is sed even when weak definition overrides it. |