about summary refs log tree commit diff
path: root/sysdeps/x86_64/elf/configure.in
diff options
context:
space:
mode:
authorRoland McGrath <roland@gnu.org>2002-09-29 10:38:40 +0000
committerRoland McGrath <roland@gnu.org>2002-09-29 10:38:40 +0000
commit5bbfc1ea7069630149c5fc1b3cec4a044d43a9cd (patch)
treee7839a54415204305359b7835c6be050c283a197 /sysdeps/x86_64/elf/configure.in
parent3c25964fb000ed7f6bd4ec30d02b3819c581b4b3 (diff)
downloadglibc-5bbfc1ea7069630149c5fc1b3cec4a044d43a9cd.tar.gz
glibc-5bbfc1ea7069630149c5fc1b3cec4a044d43a9cd.tar.xz
glibc-5bbfc1ea7069630149c5fc1b3cec4a044d43a9cd.zip
* configure: Regenerated after aclocal.m4 change.
	* sysdeps/x86_64/sysdep.h [HAVE_ELF] (L): Define with .L##name form.
	* sysdeps/unix/sysv/linux/x86_64/sysdep.h (L): Don't define it here.

	* sysdeps/generic/dl-lookupcfg.h [USE_TLS] (DL_LOOKUP_RETURNS_MAP):
	Define it, because _dl_sym presumes it (for any platform).

	* sysdeps/x86_64/dl-tls.h: New file.

	* sysdeps/x86_64/dl-machine.h (elf_machine_rela): Add a cast.

	* sysdeps/x86_64/elf/configure.in: New file.
	* sysdeps/x86_64/elf/configure: New generated file.
Diffstat (limited to 'sysdeps/x86_64/elf/configure.in')
-rw-r--r--sysdeps/x86_64/elf/configure.in35
1 files changed, 35 insertions, 0 deletions
diff --git a/sysdeps/x86_64/elf/configure.in b/sysdeps/x86_64/elf/configure.in
new file mode 100644
index 0000000000..7679a09b76
--- /dev/null
+++ b/sysdeps/x86_64/elf/configure.in
@@ -0,0 +1,35 @@
+sinclude(./aclocal.m4)dnl Autoconf lossage
+GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
+# Local configure fragment for sysdeps/x86_64/elf.
+
+if test "$usetls" != no; then
+# Check for support of thread-local storage handling in assembler and linker.
+AC_CACHE_CHECK(for x86-64 TLS support, libc_cv_x86_64_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:	leaq	bar@TLSLD(%rip), %rdi
+	leaq	bar@DTPOFF(%rax), %rcx
+	addq	foo@GOTTPOFF(%rip), %rax
+	movq	$bar@TPOFF, %rdx
+EOF
+dnl
+if AC_TRY_COMMAND(${CC-cc} -c $CFLAGS conftest.s 1>&AC_FD_CC); then
+  libc_cv_x86_64_tls=yes
+else
+  libc_cv_x86_64_tls=no
+fi
+rm -f conftest*])
+if test $libc_cv_x86_64_tls = yes; then
+  AC_DEFINE(HAVE_TLS_SUPPORT)
+fi
+fi
+
+dnl It is always possible to access static and hidden symbols in an
+dnl position independent way.
+AC_DEFINE(PI_STATIC_AND_HIDDEN)