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authorUlrich Drepper <drepper@gmail.com>2011-06-24 14:59:17 -0400
committerUlrich Drepper <drepper@gmail.com>2011-06-24 14:59:17 -0400
commitd5495a116c6271c0ae8f6955b64b7b010b1b341a (patch)
tree1c7f962b0521b487971d88e9b315a1391518f7f4 /sysdeps
parent0b1cbaaef5ccc21baf2c35d4698fb28e82eab385 (diff)
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Work around limit in writev in 2.6.38+ kernels
Diffstat (limited to 'sysdeps')
-rw-r--r--sysdeps/unix/sysv/linux/Makefile1
-rw-r--r--sysdeps/wordsize-64/tst-writev.c10
2 files changed, 9 insertions, 2 deletions
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile
index 05834e3261..ebb3f5d852 100644
--- a/sysdeps/unix/sysv/linux/Makefile
+++ b/sysdeps/unix/sysv/linux/Makefile
@@ -22,6 +22,7 @@ sysdep_routines += sysctl clone llseek umount umount2 readahead \
 		   eventfd eventfd_read eventfd_write prlimit
 
 CFLAGS-gethostid.c = -fexceptions
+CFLAGS-tst-writev.c += -DARTIFICIAL_LIMIT=0x7ffff000
 
 sysdep_headers += sys/mount.h sys/acct.h sys/sysctl.h \
 		  sys/klog.h sys/kdaemon.h \
diff --git a/sysdeps/wordsize-64/tst-writev.c b/sysdeps/wordsize-64/tst-writev.c
index 6e4788612c..015ad468cd 100644
--- a/sysdeps/wordsize-64/tst-writev.c
+++ b/sysdeps/wordsize-64/tst-writev.c
@@ -96,8 +96,14 @@ do_test (void)
 
   if (ret != (ssize_t) EXPECTED)
     {
-      printf ("writev() return value: %zd != EXPECTED: %zd\n", ret, EXPECTED);
-      return 1;
+#ifdef ARTIFICIAL_LIMIT
+      if (ret != (ssize_t) ARTIFICIAL_LIMIT)
+#endif
+	{
+	  printf ("writev() return value: %zd != EXPECTED: %zd\n",
+		  ret, EXPECTED);
+	  return 1;
+	}
     }
 
   return 0;