From 24acf01e8fa236b8458253c6250412aa597f514e Mon Sep 17 00:00:00 2001
From: jason <jason@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Wed, 11 Apr 2018 23:43:28 +0000
Subject: [PATCH] 	* lib/asan-dg.exp: Don't run tests if ulimit -v is
 set.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@259333 138bc75d-0d04-0410-961f-82ee72b054a4
---
 gcc/testsuite/ChangeLog       |  5 +++++
 gcc/testsuite/lib/asan-dg.exp | 19 +++++++++++++++++--
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 9bb1a703a2b..578e73b15e8 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2018-04-11  Jason Merrill  <jason@redhat.com>
+
+	* lib/asan-dg.exp (check_effective_target_fsanitize_address): False
+	if ulimit -v is set.
+
 2018-04-11  Bin Cheng  <bin.cheng@arm.com>
 
 	PR testsuite/85190
diff --git a/gcc/testsuite/lib/asan-dg.exp b/gcc/testsuite/lib/asan-dg.exp
index 25f1de45879..39451b98a60 100644
--- a/gcc/testsuite/lib/asan-dg.exp
+++ b/gcc/testsuite/lib/asan-dg.exp
@@ -18,9 +18,24 @@
 # code, 0 otherwise.
 
 proc check_effective_target_fsanitize_address {} {
-    return [check_no_compiler_messages fsanitize_address executable {
+    if ![check_no_compiler_messages fsanitize_address executable {
 	int main (void) { return 0; }
-    }]
+    }] {
+	return 0;
+    }
+
+    # asan doesn't work if there's a ulimit on virtual memory.
+    if ![is_remote target] {
+	if [catch {exec sh -c "ulimit -v"} ulimit_v] {
+	    # failed to get ulimit
+	} elseif [regexp {^[0-9]+$} $ulimit_v] {
+	    # ulimit -v gave a numeric limit
+	    warning "skipping asan tests due to ulimit -v"
+	    return 0;
+	}
+    }
+
+    return 1;
 }
 
 proc asan_include_flags {} {
-- 
2.11.4.GIT