===================================================================
@@ -730,12 +730,23 @@ proc check_effective_target_clone {} {
# Return 1 if the target supports setrlimit, 0 otherwise.
proc check_effective_target_setrlimit {} {
+ # Darwin has non-posix compliant RLIMIT_AS
+ if { [istarget *-*-darwin*] } {
+ return 0
+ }
return [check_function_available "setrlimit"]
}
# Return 1 if the target supports swapcontext, 0 otherwise.
proc check_effective_target_swapcontext {} {
- return [check_function_available "swapcontext"]
+ return [check_no_compiler_messages swapcontext executable {
+ #include <ucontext.h>
+ int main (void)
+ {
+ ucontext_t orig_context,child_context;
+ if (swapcontext(&child_context, &orig_context) < 0) { }
+ }
+ }]
}
# Return 1 if compilation with -pthread is error-free for trivial
===================================================================
@@ -3,6 +3,7 @@
// { dg-do run }
// { dg-options "-fno-builtin-malloc -fno-builtin-free" }
// { dg-shouldfail "asan" }
+// { dg-skip-if "Darwin uses mac function interposition" { *-*-darwin* } }
#include <stdlib.h>
#include <stdio.h>
The attached revised patch disables three asan tests introduced in r194458 which are invalid on darwin. The g++.dg/asan/interception-test-1.C test should be dg-skip-if'd on darwin since mac function interposition is used instead of interception. The c-c++-common/asan/swapcontext-test-1.c test is invalid as ucontext support was deprecated in darwin10 and removed completely in darwin11. The current implementation of check_effective_target_swapcontext in lib/target-supports.exp doesn't catch the deprecation of ucontext support on darwin because it doesn't try to parse the ucontext.h include file. The attached patch changes the check_effective_target_swapcontext to use check_no_compiler_messages with compilation of ucontext.h. The check_effective_target_setrlimit proc is also modified to return 0 on darwin due to the non-posix compliant RLIMIT_AS on that target. Tested without regression on both x86_64-apple-darwin10 and x86_64-unknown-linux-gnu. Okay for gcc trunk? Jack ps This patch leaves the failures in c-c++-common/asan/global-overflow-1.c and c-c++-common/asan/stack-overflow-1.c as the only unresolved parts of PR55679 on darwin. gcc/testsuite/ 2013-01-17 Jack Howarth <howarth@bromo.med.uc.edu> PR sanitizer/55679 * g++.dg/asan/interception-test-1.C: Skip on darwin. * lib/target-supports.exp (check_effective_target_swapcontext): Use check_no_compiler_messages to test support in ucontext.h. (check_effective_target_setrlimit): Return 0 for Darwin's non-posix compliant RLIMIT_AS.