2002-09-29 Roland McGrath <roland@redhat.com>
authorroland <roland>
Sun, 29 Sep 2002 10:38:21 +0000 (10:38 +0000)
committerroland <roland>
Sun, 29 Sep 2002 10:38:21 +0000 (10:38 +0000)
* sysdeps/x86_64/elf/configure.in: New file.
* sysdeps/x86_64/elf/configure: New generated file.

sysdeps/x86_64/elf/configure [new file with mode: 0755]
sysdeps/x86_64/elf/configure.in [new file with mode: 0644]

diff --git a/sysdeps/x86_64/elf/configure b/sysdeps/x86_64/elf/configure
new file mode 100755 (executable)
index 0000000..466ccd1
--- /dev/null
@@ -0,0 +1,43 @@
+ # 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.
+echo $ac_n "checking for x86-64 TLS support""... $ac_c" 1>&6
+echo "configure:7: checking for x86-64 TLS support" >&5
+if eval "test \"`echo '$''{'libc_cv_x86_64_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:   leaq    bar@TLSLD(%rip), %rdi
+       leaq    bar@DTPOFF(%rax), %rcx
+       addq    foo@GOTTPOFF(%rip), %rax
+       movq    $bar@TPOFF, %rdx
+EOF
+if { ac_try='${CC-cc} -c $CFLAGS conftest.s 1>&5'; { (eval echo configure:24: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; }; then
+  libc_cv_x86_64_tls=yes
+else
+  libc_cv_x86_64_tls=no
+fi
+rm -f conftest*
+fi
+
+echo "$ac_t""$libc_cv_x86_64_tls" 1>&6
+if test $libc_cv_x86_64_tls = yes; then
+  cat >> confdefs.h <<\EOF
+#define HAVE_TLS_SUPPORT 1
+EOF
+
+fi
+fi
+
+cat >> confdefs.h <<\EOF
+#define PI_STATIC_AND_HIDDEN 1
+EOF
+
diff --git a/sysdeps/x86_64/elf/configure.in b/sysdeps/x86_64/elf/configure.in
new file mode 100644 (file)
index 0000000..7679a09
--- /dev/null
@@ -0,0 +1,35 @@
+sinclude(./aclocal.m4)dnl Autoconf lossage
+GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
+# Local configure fragment for sysdeps/x86_64/elf.
+
+if test "$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)