2003-01-27 21:03:22 +00:00
|
|
|
GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
|
|
|
|
|
# Local configure fragment for sysdeps/sparc/sparc32/elf.
|
|
|
|
|
|
|
|
|
|
if test "$usetls" != no; then
|
|
|
|
|
# Check for support of thread-local storage handling in assembler and linker.
|
|
|
|
|
AC_CACHE_CHECK(for sparc32 TLS support, libc_cv_sparc32_tls, [dnl
|
2003-08-15 03:54:01 +00:00
|
|
|
changequote(,)dnl
|
2003-01-27 21:03:22 +00:00
|
|
|
cat > conftest.s <<\EOF
|
|
|
|
|
.section ".tdata", "awT", @progbits
|
|
|
|
|
.globl foo
|
|
|
|
|
foo: .word 1
|
|
|
|
|
.section ".tbss", "awT", @nobits
|
|
|
|
|
.globl bar
|
|
|
|
|
bar: .skip 4
|
|
|
|
|
.text
|
|
|
|
|
baz: sethi %tgd_hi22(foo), %l1
|
|
|
|
|
add %l1, %tgd_lo10(foo), %l1
|
|
|
|
|
add %l7, %l1, %o0, %tgd_add(foo)
|
|
|
|
|
call __tls_get_addr, %tgd_call(foo)
|
|
|
|
|
sethi %tldm_hi22(bar), %l1
|
|
|
|
|
add %l1, %tldm_lo10(bar), %l1
|
|
|
|
|
add %l7, %l1, %o0, %tldm_add(bar)
|
|
|
|
|
call __tls_get_addr, %tldm_call(bar)
|
|
|
|
|
sethi %tldo_hix22(bar), %l1
|
|
|
|
|
xor %l1, %tldo_lox10(bar), %l1
|
|
|
|
|
add %o0, %l1, %l1, %tldo_add(bar)
|
|
|
|
|
sethi %tie_hi22(foo), %l1
|
|
|
|
|
add %l1, %tie_lo10(foo), %l1
|
|
|
|
|
ld [%l7 + %l1], %l1, %tie_ld(foo)
|
|
|
|
|
add %g7, %l1, %l1, %tie_add(foo)
|
|
|
|
|
sethi %tle_hix22(foo), %l1
|
|
|
|
|
xor %l1, %tle_lox10(foo), %l1
|
|
|
|
|
EOF
|
2003-08-15 03:54:01 +00:00
|
|
|
changequote([,])dnl
|
2003-01-27 21:03:22 +00:00
|
|
|
dnl
|
|
|
|
|
if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then
|
|
|
|
|
libc_cv_sparc32_tls=yes
|
|
|
|
|
else
|
|
|
|
|
libc_cv_sparc32_tls=no
|
|
|
|
|
fi
|
|
|
|
|
rm -f conftest*])
|
|
|
|
|
if test $libc_cv_sparc32_tls = yes; then
|
|
|
|
|
AC_DEFINE(HAVE_TLS_SUPPORT)
|
|
|
|
|
fi
|
|
|
|
|
fi
|
2003-02-04 08:41:05 +00:00
|
|
|
|
|
|
|
|
# Check for broken WDISP22 in the linker.
|
|
|
|
|
AC_CACHE_CHECK(for sparc32 ld WDISP22 handling, libc_cv_sparc32_wdisp22, [dnl
|
|
|
|
|
echo 'bne foo; nop' > conftest1.s
|
|
|
|
|
echo '.globl foo; .hidden foo; foo: nop' > conftest2.s
|
|
|
|
|
libc_cv_sparc32_wdisp22=unknown
|
|
|
|
|
if AC_TRY_COMMAND(${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_sparc32_wdisp22=broken
|
|
|
|
|
else
|
|
|
|
|
libc_cv_sparc32_wdisp22=ok
|
|
|
|
|
fi
|
|
|
|
|
fi
|
|
|
|
|
rm -f conftest*])
|
|
|
|
|
if test $libc_cv_sparc32_wdisp22 != ok; then
|
|
|
|
|
AC_DEFINE(BROKEN_SPARC_WDISP22)
|
|
|
|
|
fi
|
