glibc/ports/sysdeps/hppa/configure.in

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GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
dnl The standard hppa assembler uses `;' to start comments and `!'
dnl as a line separator.
AC_CACHE_CHECK(for assembler line separator,
libc_cv_asm_line_sep, [dnl
cat > conftest.s <<EOF
nop ; is_old_puffin
EOF
if AC_TRY_COMMAND(${CC-cc} -c $ASFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then
libc_cv_asm_line_sep='!'
else
if test -z "$enable_hacker_mode"; then
echo "*** You need a newer assembler to compile glibc"
rm -f conftest*
exit 1
fi
libc_cv_asm_line_sep=';'
fi
rm -f conftest*])
AC_DEFINE_UNQUOTED(ASM_LINE_SEP, $libc_cv_asm_line_sep)
# Check for support of thread-local storage handling in assembler and
# linker.
AC_CACHE_CHECK(for hppa TLS support, libc_cv_hppa_tls, [dnl
cat > conftest.s <<\EOF
; Setup tls data
.section ".tdata","awT",@progbits
foo: .data 32
.text
; Test general dyanmic relocations
test0:
addil LT'foo-$tls_gdidx$, %r19
ldo RT'foo-$tls_gdidx$(%r1), %r26
b __tls_get_addr
nop
; Test local dynamic relocations
test1:
addil LT'foo-$tls_ldidx$, %r19
b __tls_get_addr
ldo RT'foo-$tls_ldidx$(%r1), %r26
ldo RR'foo-$tls_dtpoff$(%r1), %r25
; More variables can be loaded...
; Test initial exec reloctiosn
test2:
mfctl %cr27, %r26
addil LT'foo-$tls_ieoff$, %r19
ldw RT'foo-$tls_ieoff$(%r1), %r25
add %r26, %r25, %r24
; Test local exec relocations
test3:
mfctl %cr27, %r26
addil LR'foo-$tls_leoff$, %r26
ldo RR'foo-$tls_leoff$(%r1), %r25
; Done all the TLS tests.
EOF
dnl
if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AS_MESSAGE_LOG_FD); then
libc_cv_hppa_tls=yes
else
libc_cv_hppa_tls=no
fi
rm -f conftest*])
if test $libc_cv_hppa_tls = no; then
AC_MSG_ERROR([the assembler must support TLS])
fi