patch-2.1.121 linux/include/asm-arm/proc-armv/ptrace.h

• Lines: 12
• Date: Sun Sep 6 10:45:30 1998
• Orig file: v2.1.120/linux/include/asm-arm/proc-armv/ptrace.h
• Orig date: Tue Jan 20 16:39:43 1998

diff -u --recursive --new-file v2.1.120/linux/include/asm-arm/proc-armv/ptrace.h linux/include/asm-arm/proc-armv/ptrace.h
@@ -71,5 +71,11 @@
 #define instruction_pointer(regs)	((regs)->ARM_pc)
 #define pc_pointer(v)			(v)
 
+/* Are the current registers suitable for user mode?
+ * (used to maintain security in signal handlers)
+ */
+#define valid_user_regs(regs) \
+	(user_mode(regs) && ((regs)->ARM_sp & 3) == 0)
+
 #endif