diff options
Diffstat (limited to 'sysdeps/arm/configure.ac')
| -rw-r--r-- | sysdeps/arm/configure.ac | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/sysdeps/arm/configure.ac b/sysdeps/arm/configure.ac index 168f2e7c80..859c92a002 100644 --- a/sysdeps/arm/configure.ac +++ b/sysdeps/arm/configure.ac @@ -79,6 +79,46 @@ if test $libc_cv_arm_pcrel_movw = yes; then AC_DEFINE([ARM_PCREL_MOVW_OK]) fi +# This was buggy in assemblers from GNU binutils versions before 2.25.1 +# (it's known to be broken in 2.24 and 2.25; see +# https://sourceware.org/bugzilla/show_bug.cgi?id=18383). +AC_CACHE_CHECK([whether TPOFF relocs with addends are assembled correctly], + libc_cv_arm_tpoff_addend, [ +cat > conftest.s <<\EOF + .syntax unified + .arm + .arch armv7-a + + .text +foo: + .word tbase(tpoff)+4 + + .section .tdata,"awT",%progbits + .word -4 +tbase: .word 0 + .word 4 +EOF +libc_cv_arm_tpoff_addend=no +${CC-cc} -c $CFLAGS $CPPFLAGS \ + -o conftest.o conftest.s 1>&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD && +LC_ALL=C $READELF -x.text conftest.o > conftest.x 2>&AS_MESSAGE_LOG_FD && +{ + cat conftest.x 1>&AS_MESSAGE_LOG_FD + $AWK 'BEGIN { result = 2 } +$1 ~ /0x0+/ && $2 ~ /[[0-9a-f]]+/ { +# Check for little-endian or big-endian encoding of 4 in the in-place addend. + result = ($2 == "04000000" || $2 == "00000004") ? 0 : 1 +} +END { exit(result) } +' conftest.x 2>&AS_MESSAGE_LOG_FD && libc_cv_arm_tpoff_addend=yes +} +rm -f conftest*]) +if test $libc_cv_arm_tpoff_addend = no; then + LIBC_CONFIG_VAR([test-xfail-tst-tlsalign], [yes]) + LIBC_CONFIG_VAR([test-xfail-tst-tlsalign-static], [yes]) +fi + + libc_cv_gcc_unwind_find_fde=no # Remove -fno-unwind-tables that was added in sysdeps/arm/preconfigure.ac. |