diff options
Diffstat (limited to 'include/asm-arm/proc-armo/ptrace.h')
| -rw-r--r-- | include/asm-arm/proc-armo/ptrace.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/include/asm-arm/proc-armo/ptrace.h b/include/asm-arm/proc-armo/ptrace.h index f53aa229d..513501b7d 100644 --- a/include/asm-arm/proc-armo/ptrace.h +++ b/include/asm-arm/proc-armo/ptrace.h @@ -44,6 +44,8 @@ struct pt_regs { #define CC_Z_BIT (1 << 30) #define CC_N_BIT (1 << 31) +#ifdef __KERNEL__ + #define processor_mode(regs) \ ((regs)->ARM_pc & MODE_MASK) @@ -70,11 +72,19 @@ struct pt_regs { */ static inline int valid_user_regs(struct pt_regs *regs) { - if (!user_mode(regs) || regs->ARM_pc & (F_BIT | I_BIT)) + if (user_mode(regs) && + (regs->ARM_pc & (F_BIT | I_BIT)) == 0) return 1; + /* + * force it to be something sensible + */ + regs->ARM_pc &= ~(MODE_MASK | F_BIT | I_BIT); + return 0; } +#endif /* __KERNEL__ */ + #endif |