diff options
Diffstat (limited to 'sysdeps/arm/configure.ac')
| -rw-r--r-- | sysdeps/arm/configure.ac | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/sysdeps/arm/configure.ac b/sysdeps/arm/configure.ac index d66500b3fd..fdc52c0408 100644 --- a/sysdeps/arm/configure.ac +++ b/sysdeps/arm/configure.ac @@ -44,3 +44,16 @@ if test $libc_cv_arm_pcs_vfp = yes; then else LIBC_CONFIG_VAR([default-abi], [soft]) fi + +AC_CACHE_CHECK([whether the build tools support the GNU descriptor TLS scheme], + [libc_cv_arm_tls_desc], + [old_CFLAGS="$CFLAGS" + CFLAGS="$CFLAGS -mtls-dialect=gnu2" + AC_COMPILE_IFELSE([AC_LANG_PROGRAM([asm (".word\tfoo(tlsdesc)");], [])], + [libc_cv_arm_tls_desc=yes], [libc_cv_arm_tls_desc=no]) + CFLAGS="$old_CFLAGS"]) +if test $libc_cv_arm_tls_desc = yes; then + LIBC_CONFIG_VAR([have-arm-tls-desc], [yes]) +else + LIBC_CONFIG_VAR([have-arm-tls-desc], [no]) +fi |