[ARM] 3262/4: allow ptraced syscalls to be overriden

Patch from Nicolas Pitre

This is needed by strace to properly handle the tracing of some system
calls. It could be useful for other applications as well.

Based on an earlier patch from Daniel Jacobowitz.

Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Daniel Jacobowitz <dan@debian.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 3 insertions, 0 deletions

diff --git a/include/asm-arm/ptrace.h b/include/asm-arm/ptrace.h
index f40948d54448..77adb7fa169b 100644
--- a/include/asm-arm/ptrace.h
+++ b/include/asm-arm/ptrace.h
@@ -23,6 +23,9 @@
 #define PTRACE_OLDSETOPTIONS    21
 
 #define PTRACE_GET_THREAD_AREA  22
+
+#define PTRACE_SET_SYSCALL      23
+
 /*
  * PSR bits
  */