Pretty up the debugging hack that allows printing of stack traces

for selected syscalls.

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@12051

diff --git a/coregrind/m_syswrap/syswrap-main.c b/coregrind/m_syswrap/syswrap-main.c
index 0daa6dd1dcfd15f870e1fb41d6705b2eaa3581ce..78ccef0f1b7f22c15782b594727034eb4bbfb565 100644 (file)
--- a/coregrind/m_syswrap/syswrap-main.c
+++ b/coregrind/m_syswrap/syswrap-main.c
@@ -1307,9 +1307,10 @@ void VG_(client_syscall) ( ThreadId tid, UInt trc )
 
    /* It's sometimes useful, as a crude debugging hack, to get a
       stack trace at each (or selected) syscalls. */
-   if (0 /* sysno == __NR_mmap */) {
-      VG_(umsg)("\n");
+   if (0 && sysno == __NR_ioctl) {
+      VG_(umsg)("\nioctl:\n");
       VG_(get_and_pp_StackTrace)(tid, 10);
+      VG_(umsg)("\n");
    }
 
 #  if defined(VGO_darwin)