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Diffstat (limited to 'sysdeps/ia64/elf/configure.in')
| -rw-r--r-- | sysdeps/ia64/elf/configure.in | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/sysdeps/ia64/elf/configure.in b/sysdeps/ia64/elf/configure.in index d25d85b..b113579 100644 --- a/sysdeps/ia64/elf/configure.in +++ b/sysdeps/ia64/elf/configure.in @@ -1,6 +1,36 @@ GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. # Local configure fragment for sysdeps/ia64/elf. +if test "$usetls" != no; then +# Check for support of thread-local storage handling in assembler and +# linker. +AC_CACHE_CHECK(for ia64 TLS support, libc_cv_ia64_tls, [dnl +cat > conftest.s <<\EOF + .section ".tdata","awT",@progbits +foo: data8 25 + .text + addl r16 = @ltoff(@dtpmod(foo#)), gp + addl r17 = @ltoff(@dtprel(foo#)), gp + addl r18 = @ltoff(@tprel(foo#)), gp + addl r19 = @dtprel(foo#), gp + adds r21 = @dtprel(foo#), r13 + movl r23 = @dtprel(foo#) + addl r20 = @tprel(foo#), gp + adds r22 = @tprel(foo#), r13 + movl r24 = @tprel(foo#) +EOF +dnl +if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then + libc_cv_ia64_tls=yes +else + libc_cv_ia64_tls=no +fi +rm -f conftest*]) +if test $libc_cv_ia64_tls = yes; then + AC_DEFINE(HAVE_TLS_SUPPORT) +fi +fi + dnl It is always possible to access static and hidden symbols in an dnl position independent way. AC_DEFINE(PI_STATIC_AND_HIDDEN) |