| 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 |
| |
