GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory. # Local configure fragment for sysdeps/sparc/sparc64/elf. if test "$usetls" != no; then # Check for support of thread-local storage handling in assembler and linker. AC_CACHE_CHECK(for sparc64 TLS support, libc_cv_sparc64_tls, [dnl changequote(,)dnl cat > conftest.s <<\EOF .section ".tdata", "awT", @progbits .globl foo foo: .word 1 .section ".tbss", "awT", @nobits .globl bar bar: .skip 4 .text .globl main main: sethi %tgd_hi22(foo), %l1 add %l1, %tgd_lo10(foo), %l1 add %l7, %l1, %o0, %tgd_add(foo) call __tls_get_addr, %tgd_call(foo) sethi %tldm_hi22(bar), %l1 add %l1, %tldm_lo10(bar), %l1 add %l7, %l1, %o0, %tldm_add(bar) call __tls_get_addr, %tldm_call(bar) sethi %tldo_hix22(bar), %l1 xor %l1, %tldo_lox10(bar), %l1 add %o0, %l1, %l1, %tldo_add(bar) sethi %tie_hi22(foo), %l1 add %l1, %tie_lo10(foo), %l1 ldx [%l7 + %l1], %l1, %tie_ldx(foo) add %g7, %l1, %l1, %tie_add(foo) sethi %tle_hix22(foo), %l1 xor %l1, %tle_lox10(foo), %l1 EOF changequote([,])dnl dnl if AC_TRY_COMMAND(${CC-cc} -o conftest.bin $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then libc_cv_sparc64_tls=yes else libc_cv_sparc64_tls=no fi rm -f conftest*]) if test $libc_cv_sparc64_tls = yes; then AC_DEFINE(HAVE_TLS_SUPPORT) fi fi # Check for broken WDISP22 in the linker. AC_CACHE_CHECK(for sparc64 ld WDISP22 handling, libc_cv_sparc64_wdisp22, [dnl echo 'bne foo; nop' > conftest1.s echo '.globl foo; .hidden foo; foo: nop' > conftest2.s libc_cv_sparc64_wdisp22=unknown if AC_TRY_COMMAND(${CC-cc} -nostdlib -shared $CFLAGS conftest1.s conftest2.s -o conftest.so 1>&AS_MESSAGE_LOG_FD); then if readelf -r conftest.so | grep -q R_SPARC_WDISP22; then libc_cv_sparc64_wdisp22=broken else libc_cv_sparc64_wdisp22=ok fi fi rm -f conftest*]) if test $libc_cv_sparc64_wdisp22 != ok; then AC_DEFINE(BROKEN_SPARC_WDISP22) fi