1 files changed, 13 insertions, 3 deletions

diff --git a/include/asm-arm/ptrace.h b/include/asm-arm/ptrace.h
index ee3d93c281d8..7aaa206cb54e 100644
--- a/include/asm-arm/ptrace.h
+++ b/include/asm-arm/ptrace.h
@@ -10,6 +10,8 @@
 #ifndef __ASM_ARM_PTRACE_H
 #define __ASM_ARM_PTRACE_H
 
+#include <asm/hwcap.h>
+
 #define PTRACE_GETREGS          12
 #define PTRACE_SETREGS          13
 #define PTRACE_GETFPREGS        14
@@ -45,6 +47,7 @@
 #define PSR_T_BIT       0x00000020
 #define PSR_F_BIT       0x00000040
 #define PSR_I_BIT       0x00000080
+#define PSR_A_BIT       0x00000100
 #define PSR_J_BIT       0x01000000
 #define PSR_Q_BIT       0x08000000
 #define PSR_V_BIT       0x10000000
@@ -103,6 +106,10 @@ struct pt_regs {
 #define thumb_mode(regs) (0)
 #endif
 
+#define isa_mode(regs) \
+        ((((regs)->ARM_cpsr & PSR_J_BIT) >> 23) | \
+         (((regs)->ARM_cpsr & PSR_T_BIT) >> 5))
+
 #define processor_mode(regs) \
         ((regs)->ARM_cpsr & MODE_MASK)
 
@@ -117,14 +124,17 @@ struct pt_regs {
  */
 static inline int valid_user_regs(struct pt_regs *regs)
 {
-        if (user_mode(regs) &&
-            (regs->ARM_cpsr & (PSR_F_BIT|PSR_I_BIT)) == 0)
+        if (user_mode(regs) && (regs->ARM_cpsr & PSR_I_BIT) == 0) {
+                regs->ARM_cpsr &= ~(PSR_F_BIT | PSR_A_BIT);
                 return 1;
+        }
 
         /*
          * Force CPSR to something logical...
          */
-        regs->ARM_cpsr &= PSR_f | PSR_s | PSR_x | PSR_T_BIT | MODE32_BIT;
+        regs->ARM_cpsr &= PSR_f | PSR_s | (PSR_x & ~PSR_A_BIT) | PSR_T_BIT | MODE32_BIT;
+        if (!(elf_hwcap & HWCAP_26BIT))
+                regs->ARM_cpsr |= USR_MODE;
 
         return 0;
 }