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authorUlrich Drepper <drepper@redhat.com>2006-03-02 15:58:36 +0000
committerUlrich Drepper <drepper@redhat.com>2006-03-02 15:58:36 +0000
commit70c50602ccaedc74b25fbaef96a7a4e6eeb407a2 (patch)
tree6c8aac340ce55e43676444e046b923fd02d60020 /sysdeps/powerpc/powerpc32
parent073f560e7b73774eea6e1e332e57bc967fd07ce9 (diff)
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006-03-02 Jakub Jelinek <jakub@redhat.com>
	* elf/check-textrel.c: Include config.h.
	(AB(handle_file)): Don't fail if PF_X | PF_W on architectures known
	to have executable writable PLT.
	* sysdeps/powerpc/powerpc32/configure.in (HAVE_PPC_SECURE_PLT): New
	test.
	* config.h.in (HAVE_PPC_SECURE_PLT): Add.

	* malloc/malloc.c (MALLOC_ALIGNMENT): Set to __alignof__ (long double)
	if long double is more aligned than 2 * SIZE_SZ.
	(misaligned_chunk): Define.
	(public_rEALLOc, _int_free, _int_realloc): Use it.
Diffstat (limited to 'sysdeps/powerpc/powerpc32')
-rw-r--r--sysdeps/powerpc/powerpc32/configure29
-rw-r--r--sysdeps/powerpc/powerpc32/configure.in14
2 files changed, 43 insertions, 0 deletions
diff --git a/sysdeps/powerpc/powerpc32/configure b/sysdeps/powerpc/powerpc32/configure
index 9ebac38b57..0ff56c936a 100644
--- a/sysdeps/powerpc/powerpc32/configure
+++ b/sysdeps/powerpc/powerpc32/configure
@@ -31,3 +31,32 @@ if test $libc_cv_ppc_rel16 = yes; then
 _ACEOF
 
 fi
+
+# See whether GCC uses -msecure-plt.
+echo "$as_me:$LINENO: checking for -msecure-plt by default" >&5
+echo $ECHO_N "checking for -msecure-plt by default... $ECHO_C" >&6
+if test "${libc_cv_ppc_secure_plt+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  echo 'int foo (void) { extern int bar; return bar; }' > conftest.c
+libc_cv_ppc_secure_plt=no
+if { ac_try='${CC-cc} -S $CFLAGS conftest.c -fpic -o conftest.s 1>&5'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  if grep '_GLOBAL_OFFSET_TABLE_-.*@ha' conftest.s > /dev/null 2>&1; then
+    libc_cv_ppc_secure_plt=yes
+  fi
+fi
+rm -rf conftest*
+fi
+echo "$as_me:$LINENO: result: $libc_cv_ppc_secure_plt" >&5
+echo "${ECHO_T}$libc_cv_ppc_secure_plt" >&6
+if test $libc_cv_ppc_secure_plt = yes; then
+  cat >>confdefs.h <<\_ACEOF
+#define HAVE_PPC_SECURE_PLT 1
+_ACEOF
+
+fi
diff --git a/sysdeps/powerpc/powerpc32/configure.in b/sysdeps/powerpc/powerpc32/configure.in
index 6d2c41cb9a..7219ad993e 100644
--- a/sysdeps/powerpc/powerpc32/configure.in
+++ b/sysdeps/powerpc/powerpc32/configure.in
@@ -16,3 +16,17 @@ rm -f conftest*])
 if test $libc_cv_ppc_rel16 = yes; then
   AC_DEFINE(HAVE_ASM_PPC_REL16)
 fi
+
+# See whether GCC uses -msecure-plt.
+AC_CACHE_CHECK(for -msecure-plt by default, libc_cv_ppc_secure_plt, [dnl
+echo 'int foo (void) { extern int bar; return bar; }' > conftest.c
+libc_cv_ppc_secure_plt=no
+if AC_TRY_COMMAND(${CC-cc} -S $CFLAGS conftest.c -fpic -o conftest.s 1>&AS_MESSAGE_LOG_FD); then
+  if grep '_GLOBAL_OFFSET_TABLE_-.*@ha' conftest.s > /dev/null 2>&1; then
+    libc_cv_ppc_secure_plt=yes
+  fi
+fi
+rm -rf conftest*])
+if test $libc_cv_ppc_secure_plt = yes; then
+  AC_DEFINE(HAVE_PPC_SECURE_PLT)
+fi