2002-06-04 Roland McGrath <roland@frob.com>

	* sysdeps/alpha/elf/configure.in: New file.  Check for TLS support.
	* sysdeps/alpha/elf/configure: New file (generated).

diff --git a/sysdeps/alpha/elf/configure b/sysdeps/alpha/elf/configure
new file mode 100644 (file)
index 0000000..3346b8e
--- /dev/null
+++ b/sysdeps/alpha/elf/configure
@@ -0,0 +1,60 @@
+ # Local configure fragment for sysdeps/alpha/elf.
+
+if test "$usetls" != no; then
+# Check for support of thread-local storage handling in assembler and
+# linker.
+echo $ac_n "checking for Alpha TLS support""... $ac_c" 1>&6
+echo "configure:8: checking for Alpha TLS support" >&5
+if eval "test \"`echo '$''{'libc_cv_alpha_tls'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.s <<\EOF
+       .section ".tdata", "awT", @progbits
+       .globl foo
+foo:   .quad   1
+       .section ".tbss", "awT", @nobits
+       .globl bar
+bar:   .skip   8
+       .text
+baz:
+       .set nomacro
+       ldq     $27, __tls_get_addr($29)        !literal!1
+       ldq     $16, a($29)                     !tlsgd!1
+       jsr     $26, ($27), __tls_get_addr      !lituse_tlsgd!1
+
+       jsr     $26, ($27), __tls_get_addr      !lituse_tlsldm!2
+       ldq     $27, __tls_get_addr($29)        !literal!2
+       ldq     $16, b($29)                     !tlsldm!2
+
+       ldq     $16, c($29)                     !tlsgd
+       ldq     $16, d($29)                     !tlsldm
+
+       ldq     $16, e($29)                     !tlsgd!3
+       ldq     $16, f($29)                     !tlsldm!4
+
+       ldq     $16, g($29)                     !gotdtprel
+       ldah    $16, h($31)                     !dtprelhi
+       lda     $16, i($16)                     !dtprello
+       lda     $16, j($31)                     !dtprel
+
+       ldq     $16, k($29)                     !gottprel
+       ldah    $16, l($31)                     !tprelhi
+       lda     $16, m($16)                     !tprello
+       lda     $16, n($31)                     !tprel
+EOF
+if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:46: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+  libc_cv_alpha_tls=yes
+else
+  libc_cv_alpha_tls=no
+fi
+rm -f conftest*
+fi
+
+echo "$ac_t""$libc_cv_alpha_tls" 1>&6
+if test $libc_cv_alpha_tls = yes; then
+  cat >> confdefs.h <<\EOF
+#define HAVE_TLS_SUPPORT 1
+EOF
+
+fi
+fi