* posix/bug-regex15.c: New file.

	* posix/Makefile (tests): Add it.

	* test-skeleton.c (TEST_DATA_LIMIT): New macro, default to 64MB.
	(main): Set RLIMIT_DATA limit to TEST_DATA_LIMIT (or lower if need be).

1 files changed, 21 insertions, 0 deletions

diff --git a/test-skeleton.c b/test-skeleton.c
index 2b5102b..78a88dc 100644
--- a/test-skeleton.c
+++ b/test-skeleton.c
@@ -27,6 +27,7 @@
 #include <unistd.h>
 #include <sys/resource.h>
 #include <sys/wait.h>
+#include <sys/param.h>
 
 /* The test function is normally called `do_test' and it is called
    with argc and argv as the arguments.  We nevertheless provide the
@@ -35,6 +36,9 @@
 # define TEST_FUNCTION do_test (argc, argv)
 #endif
 
+#ifndef TEST_DATA_LIMIT
+# define TEST_DATA_LIMIT (64 << 20) /* Data limit (bytes) to run with.  */
+#endif
 
 #define OPT_DIRECT 1000
 #define OPT_TESTDIR 1001
@@ -250,6 +254,23 @@ main (int argc, char *argv[])
       setrlimit (RLIMIT_CORE, &core_limit);
 #endif
 
+#ifdef RLIMIT_DATA
+      /* Try to avoid eating all memory if a test leaks.  */
+      struct rlimit data_limit;
+      if (getrlimit (RLIMIT_DATA, &data_limit) == 0)
+	{
+	  if (TEST_DATA_LIMIT == RLIM_INFINITY)
+	    data_limit.rlim_cur = data_limit.rlim_max;
+	  else if (data_limit.rlim_cur > (rlim_t) TEST_DATA_LIMIT)
+	    data_limit.rlim_cur = MIN ((rlim_t) TEST_DATA_LIMIT,
+				       data_limit.rlim_max);
+	  if (setrlimit (RLIMIT_DATA, &data_limit) < 0)
+	    perror ("setrlimit: RLIMIT_DATA");
+	}
+      else
+	perror ("getrlimit: RLIMIT_DATA");
+#endif
+
       /* We put the test process in its own pgrp so that if it bogusly
 	 generates any job control signals, they won't hit the whole build.  */
       setpgid (0, 0);