[PATCH] strace doesn't show new futex calls

[Sripathi Kodi]

Hi,

strace does not understand PI related futex calls. strace output looks like 
this for such calls:

11733 futex(0x602a20, 0x7 /* FUTEX_??? */, 11733 <unfinished ...>
11734 futex(0x602a20, 0x6 /* FUTEX_??? */, 1 <unfinished ...>
11732 <... futex resumed> )             = 0
11733 <... futex resumed> )             = 0

version of strace: strace -- version 4.5.15

The following patch fixes the problem. It defines in strace all the FUTEX_* 
calls that are defined in glibc. Please let me know if the patch is good.

Thanks,
Sripathi.

PS: Please CC me on reply, I have not subscribed to the list.


Signed-off-by: Sripathi Kodi <sripathik at in.ibm.com>

Index: strace-4.5.15/process.c
===================================================================
--- strace-4.5.15.orig/process.c	2007-07-23 14:05:07.000000000 +0530
+++ strace-4.5.15/process.c	2007-07-23 14:17:44.000000000 +0530
@@ -117,6 +117,21 @@
 # ifndef FUTEX_REQUEUE
 #  define FUTEX_REQUEUE 3
 # endif
+# ifndef FUTEX_CMP_REQUEUE
+#  define FUTEX_CMP_REQUEUE 4
+# endif
+# ifndef FUTEX_WAKE_OP
+#  define FUTEX_WAKE_OP 5
+# endif
+# ifndef FUTEX_LOCK_PI
+#  define FUTEX_LOCK_PI 6
+# endif
+# ifndef FUTEX_UNLOCK_PI
+#  define FUTEX_UNLOCK_PI 7
+# endif
+# ifndef FUTEX_TRYLOCK_PI
+#  define FUTEX_TRYLOCK_PI 8
+# endif
 #endif
 
 #ifdef LINUX
@@ -3072,6 +3087,11 @@
 	{ FUTEX_WAKE,	"FUTEX_WAKE" },
 	{ FUTEX_FD,	"FUTEX_FD" },
 	{ FUTEX_REQUEUE,"FUTEX_REQUEUE" },
+	{ FUTEX_CMP_REQUEUE, "FUTEX_CMP_REQUEUE" },
+	{ FUTEX_WAKE_OP, "FUTEX_WAKE_OP" },
+	{ FUTEX_LOCK_PI, "FUTEX_LOCK_PI" },
+	{ FUTEX_UNLOCK_PI, "FUTEX_UNLOCK_PI" },
+	{ FUTEX_TRYLOCK_PI, "FUTEX_TRYLOCK_PI" },
 	{ 0,		NULL }
 };