vec.cc (__aeabi_vec_dtor_cookie): Handle NULL array address.

2008-06-27  Mark Mitchell  <mark@codesourcery.com>

	* libsupc++/vec.cc (__aeabi_vec_dtor_cookie): Handle NULL array
	address.
	(__aeabi_vec_delete): Likewise.
	(__aeabi_vec_delete3): Likewise.
	(__aeabi_vec_delete3_nodtor): Likewise.

2008-06-27  Mark Mitchell  <mark@codesourcery.com>

	* g++.dg/abi/arm_cxa_vec2.C: New test.

From-SVN: r137207

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index d0d635d..d4de302 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,7 @@
+2008-06-27  Mark Mitchell  <mark@codesourcery.com>
+
+       * g++.dg/abi/arm_cxa_vec2.C: New test.
+
 2008-06-28  Jakub Jelinek  <jakub@redhat.com>
 
        PR c++/36364

diff --git a/gcc/testsuite/g++.dg/abi/arm_cxa_vec2.C b/gcc/testsuite/g++.dg/abi/arm_cxa_vec2.C
new file mode 100644 (file)
index 0000000..76f327a
--- /dev/null
+++ b/gcc/testsuite/g++.dg/abi/arm_cxa_vec2.C
@@ -0,0 +1,41 @@
+// Check that ARM vector delete functions accept NULL pointers as
+// inputs.
+// { dg-do run { target arm*-*-* } }
+
+#ifdef __ARM_EABI__
+#include <cxxabi.h>
+
+typedef void *(dtor_type)(void *);
+
+extern "C" {
+  void abort();
+  void *__aeabi_vec_dtor_cookie(void *, dtor_type);
+  void __aeabi_vec_delete(void *, dtor_type);
+  void __aeabi_vec_delete3(void *, 
+                          dtor_type, 
+                          void (*)(void *, __SIZE_TYPE__));
+  void __aeabi_vec_delete3_nodtor(void *, 
+                                 void (*)(void *, __SIZE_TYPE__));
+}
+
+// These functions should never be called.
+void* dtor(void *)
+{
+  abort ();
+}
+
+void dealloc(void *, size_t) {
+  abort ();
+}
+
+int main () {
+  if (__aeabi_vec_dtor_cookie (NULL, &dtor) != NULL)
+    return 1;
+  // These do not return values, but should not crash.
+  __aeabi_vec_delete (NULL, &dtor);
+  __aeabi_vec_delete3 (NULL, &dtor, &dealloc);
+  __aeabi_vec_delete3_nodtor (NULL, &dealloc);
+}
+#else
+int main () {}
+#endif

diff --git a/libstdc++-v3/ChangeLog b/libstdc++-v3/ChangeLog
index 1531ff3..cfb15d2 100644 (file)
--- a/libstdc++-v3/ChangeLog
+++ b/libstdc++-v3/ChangeLog
@@ -1,3 +1,11 @@
+2008-06-27  Mark Mitchell  <mark@codesourcery.com>
+
+       * libsupc++/vec.cc (__aeabi_vec_dtor_cookie): Handle NULL array
+       address.
+       (__aeabi_vec_delete): Likewise.
+       (__aeabi_vec_delete3): Likewise.
+       (__aeabi_vec_delete3_nodtor): Likewise.
+
 2008-06-27  Paolo Carlini  <paolo.carlini@oracle.com>
 
        * include/bits/stl_algo.h (is_partitioned): Add in C++0x mode.

diff --git a/libstdc++-v3/libsupc++/vec.cc b/libstdc++-v3/libsupc++/vec.cc
index 67caec8..a29bbc7 100644 (file)
--- a/libstdc++-v3/libsupc++/vec.cc
+++ b/libstdc++-v3/libsupc++/vec.cc
@@ -461,6 +461,9 @@ namespace __aeabiv1
   __aeabi_vec_dtor_cookie (void *array_address, 
                           abi::__cxa_cdtor_type destructor)
   {
+    if (!array_address)
+      return NULL;
+
     abi::__cxa_vec_dtor (array_address, 
                         reinterpret_cast<std::size_t *>(array_address)[-1],
                         reinterpret_cast<std::size_t *>(array_address)[-2],
@@ -473,6 +476,9 @@ namespace __aeabiv1
   __aeabi_vec_delete (void *array_address, 
                      abi::__cxa_cdtor_type destructor)
   {
+    if (!array_address)
+      return;
+
     abi::__cxa_vec_delete (array_address,
                           reinterpret_cast<std::size_t *>(array_address)[-2],
                           2 * sizeof (std::size_t),
@@ -484,6 +490,9 @@ namespace __aeabiv1
                       abi::__cxa_cdtor_type destructor,
                       void (*dealloc) (void *, std::size_t))
   {
+    if (!array_address)
+      return;
+
     abi::__cxa_vec_delete3 (array_address,
                            reinterpret_cast<std::size_t *>(array_address)[-2],
                            2 * sizeof (std::size_t),
@@ -494,6 +503,9 @@ namespace __aeabiv1
   __aeabi_vec_delete3_nodtor (void *array_address,
                              void (*dealloc) (void *, std::size_t))
   {
+    if (!array_address)
+      return;
+
     abi::__cxa_vec_delete3 (array_address,
                            reinterpret_cast<std::size_t *>(array_address)[-2],
                            2 * sizeof (std::size_t),