[PATCH 2/2] alpha: Don't test toolchain support for TLS or GPREL

[Richard Henderson <rth at twiddle dot net>]

---
 ports/ChangeLog.alpha            |    3 +
 ports/sysdeps/alpha/configure    |  175 +-------------------------------------
 ports/sysdeps/alpha/configure.in |   71 +---------------
 3 files changed, 9 insertions(+), 240 deletions(-)

diff --git a/ports/ChangeLog.alpha b/ports/ChangeLog.alpha
index e65097a..b09cbb8 100644
--- a/ports/ChangeLog.alpha
+++ b/ports/ChangeLog.alpha
@@ -1,5 +1,8 @@
 2012-08-13  Richard Henderson  <rth@twiddle.net>
 
+	* configure.in: Don't test toolchain support for TLS or GPREL.
+	* configure: Rebuild.
+
 	* sysdeps/alpha/fpu/s_nearbyint.c (nearbyintl): Do compat
 	with GLIBC_2_1.
 
diff --git a/ports/sysdeps/alpha/configure b/ports/sysdeps/alpha/configure
index 1d0daf5..9c03229 100644
--- a/ports/sysdeps/alpha/configure
+++ b/ports/sysdeps/alpha/configure
@@ -1,176 +1,7 @@
-
-# as_fn_set_status STATUS
-# -----------------------
-# Set $? to STATUS, without forking.
-as_fn_set_status ()
-{
-  return $1
-} # as_fn_set_status
-
-# as_fn_exit STATUS
-# -----------------
-# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
-as_fn_exit ()
-{
-  set +e
-  as_fn_set_status $1
-  exit $1
-} # as_fn_exit
-if expr a : '\(a\)' >/dev/null 2>&1 &&
-   test "X`expr 00001 : '.*\(...\)'`" = X001; then
-  as_expr=expr
-else
-  as_expr=false
-fi
-
-if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
-  as_basename=basename
-else
-  as_basename=false
-fi
-
-as_me=`$as_basename -- "$0" ||
-$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
-	 X"$0" : 'X\(//\)$' \| \
-	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
-$as_echo X/"$0" |
-    sed '/^.*\/\([^/][^/]*\)\/*$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\/\(\/\/\)$/{
-	    s//\1/
-	    q
-	  }
-	  /^X\/\(\/\).*/{
-	    s//\1/
-	    q
-	  }
-	  s/.*/./; q'`
-
-
-  as_lineno_1=$LINENO as_lineno_1a=$LINENO
-  as_lineno_2=$LINENO as_lineno_2a=$LINENO
-  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
-  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
-  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
-  sed -n '
-    p
-    /[$]LINENO/=
-  ' <$as_myself |
-    sed '
-      s/[$]LINENO.*/&-/
-      t lineno
-      b
-      :lineno
-      N
-      :loop
-      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
-      t loop
-      s/-\n.*//
-    ' >$as_me.lineno &&
-  chmod +x "$as_me.lineno" ||
-    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
-
-  # Don't try to exec as it changes $[0], causing all sort of problems
-  # (the dirname of $[0] is not the place where we might find the
-  # original and so on.  Autoconf is especially sensitive to this).
-  . "./$as_me.lineno"
-  # Exit status is that of the last command.
-  exit
-}
-
 # This file is generated from configure.in by Autoconf.  DO NOT EDIT!
  # Local configure fragment for sysdeps/alpha.
 
-# Check for support of thread-local storage handling in assembler and linker.
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for Alpha TLS support" >&5
-$as_echo_n "checking for Alpha TLS support... " >&6; }
-if ${libc_cv_alpha_tls+:} false; then :
-  $as_echo_n "(cached) " >&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 $CFLAGS conftest.s 1>&5'
-  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; }; then
-  libc_cv_alpha_tls=yes
-else
-  libc_cv_alpha_tls=no
-fi
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_alpha_tls" >&5
-$as_echo "$libc_cv_alpha_tls" >&6; }
-if test $libc_cv_alpha_tls = no; then
-  as_fn_error $? "the assembler must support TLS" "$LINENO" 5
-fi
-
-{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for GP relative module local relocs" >&5
-$as_echo_n "checking for GP relative module local relocs... " >&6; }
-if ${libc_cv_alpha_hidden_gprel+:} false; then :
-  $as_echo_n "(cached) " >&6
-else
-  cat > conftest.c <<\EOF
-static volatile int bar;
-int baz __attribute__((visibility("hidden")));
-int f(void) { return bar + baz; }
-EOF
-
-libc_cv_alpha_hidden_gprel=no
-if { ac_try='${CC-cc} -S $CFLAGS -O2 -fpic conftest.c 1>&5'
-  { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
-  test $ac_status = 0; }; }; then
-  if grep -q 'bar.*!gprel' conftest.s \
-     && grep -q 'baz.*!gprel' conftest.s \
-     && ! grep -q 'bar.*!literal' conftest.s \
-     && ! grep -q 'baz.*!literal' conftest.s; then
-    libc_cv_alpha_hidden_gprel=yes
-  fi
-fi
-rm -f conftest*
-fi
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_alpha_hidden_gprel" >&5
-$as_echo "$libc_cv_alpha_hidden_gprel" >&6; }
-if test $libc_cv_alpha_hidden_gprel = yes; then
-  $as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h
+# With required gcc+binutils, we can always access static and hidden
+# symbols in a position independent way.
+$as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h
 
-fi
diff --git a/ports/sysdeps/alpha/configure.in b/ports/sysdeps/alpha/configure.in
index bf8e926..eadc57a 100644
--- a/ports/sysdeps/alpha/configure.in
+++ b/ports/sysdeps/alpha/configure.in
@@ -1,71 +1,6 @@
 GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
 # Local configure fragment for sysdeps/alpha.
 
-# 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>&AS_MESSAGE_LOG_FD); then
-  libc_cv_alpha_tls=yes
-else
-  libc_cv_alpha_tls=no
-fi
-rm -f conftest*])
-if test $libc_cv_alpha_tls = no; then
-  AC_MSG_ERROR([the assembler must support TLS])
-fi
-
-AC_CACHE_CHECK(for GP relative module local relocs, libc_cv_alpha_hidden_gprel, [dnl
-cat > conftest.c <<\EOF
-static volatile int bar;
-int baz __attribute__((visibility("hidden")));
-int f(void) { return bar + baz; }
-EOF
-dnl
-
-libc_cv_alpha_hidden_gprel=no
-if AC_TRY_COMMAND(${CC-cc} -S $CFLAGS -O2 -fpic conftest.c 1>&AS_MESSAGE_LOG_FD); then
-  if grep -q 'bar.*!gprel' conftest.s \
-     && grep -q 'baz.*!gprel' conftest.s \
-     && ! grep -q 'bar.*!literal' conftest.s \
-     && ! grep -q 'baz.*!literal' conftest.s; then
-    libc_cv_alpha_hidden_gprel=yes
-  fi
-fi
-rm -f conftest*])
-if test $libc_cv_alpha_hidden_gprel = yes; then
-  AC_DEFINE(PI_STATIC_AND_HIDDEN)
-fi
+# With required gcc+binutils, we can always access static and hidden
+# symbols in a position independent way.
+AC_DEFINE(PI_STATIC_AND_HIDDEN)
-- 
1.7.7.6