diff options
Diffstat (limited to 'sysdeps/powerpc/powerpc64/elf/configure.in')
| -rw-r--r-- | sysdeps/powerpc/powerpc64/elf/configure.in | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc64/elf/configure.in b/sysdeps/powerpc/powerpc64/elf/configure.in new file mode 100644 index 0000000000..98abcf0356 --- /dev/null +++ b/sysdeps/powerpc/powerpc64/elf/configure.in @@ -0,0 +1,61 @@ +GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. +# Local configure fragment for sysdeps/powerpc64/elf. + +if test "$usetls" != no; then +# Check for support of thread-local storage handling in assembler and +# linker. +AC_CACHE_CHECK(for powerpc64 TLS support, libc_cv_powerpc64_tls, [dnl +cat > conftest.s <<\EOF + .section ".tdata","awT",@progbits +x: .quad 1 +x1: .quad 1 +x2: .quad 1 +x3: .quad 1 +x4: .long 1 + .section ".toc","aw" +.LC0: + .quad x@dtpmod + .quad x@dtprel +.LC1: + .quad x1@dtpmod + .quad 0 +.LC2: + .quad x@tprel + .text + addi 3,2,x@got@tlsgd + addi 3,2,.LC0@toc + addi 3,2,x1@got@tlsld + addi 9,3,x1@dtprel + addis 9,3,x2@dtprel@ha + addi 9,9,x2@dtprel@l + ld 9,x3@got@dtprel(2) + addi 3,2,.LC0@toc + lwz 0,x1@dtprel(3) + ld 0,x1@dtprel(3) + addis 9,3,x2@dtprel@ha + lwz 0,x2@dtprel@l(9) + ld 0,x2@dtprel@l(9) + ld 9,x3@got@dtprel(2) + ld 9,x@got@tprel(2) + add 9,9,x@tls + ld 9,.LC2@toc(2) + add 9,9,.LC2@tls + addi 9,13,x1@tprel + addis 9,13,x2@tprel@ha + addi 9,9,x2@tprel@l +EOF +dnl +if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then + libc_cv_powerpc64_tls=yes +else + libc_cv_powerpc64_tls=no +fi +rm -f conftest*]) +if test $libc_cv_powerpc64_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) |