From: Roland McGrath <roland@gnu.org>
Date: Tue, 4 Jun 2002 19:03:41 +0000 (+0000)
Subject: * sysdeps/alpha/elf/configure.in: New file.  Check for TLS support.
X-Git-Tag: cvs/glibc-2-3~748
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=17d7201a97152b459fad11291de16cf0e6485cfa;p=platform%2Fupstream%2Fglibc.git

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

	* sysdeps/alpha/elf/configure: New file (generated).
---

diff --git a/ChangeLog b/ChangeLog
index b832013..e63d7a3 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+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).
+
 2002-06-02  Roland McGrath  <roland@frob.com>
 
 	* include/link.h: Include <tls.h> to make sure USE_TLS is defined.
diff --git a/sysdeps/alpha/elf/configure.in b/sysdeps/alpha/elf/configure.in
new file mode 100644
index 0000000..7548046
--- /dev/null
+++ b/sysdeps/alpha/elf/configure.in
@@ -0,0 +1,53 @@
+sinclude(./aclocal.m4)dnl Autoconf lossage
+GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
+# Local configure fragment for sysdeps/alpha/elf.
+
+if test "$usetls" != no; then
+# Check for support of thread-local storage handling in assembler and
+# linker.
+AC_CACHE_CHECK(for Alpha TLS support, libc_cv_alpha_tls, [dnl
+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($31)			!tprel
+EOF
+dnl
+if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
+  libc_cv_alpha_tls=yes
+else
+  libc_cv_alpha_tls=no
+fi
+rm -f conftest*])
+if test $libc_cv_alpha_tls = yes; then
+  AC_DEFINE(HAVE_TLS_SUPPORT)
+fi
+fi