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-rw-r--r--include/asm-arm/ptrace.h12
1 files changed, 9 insertions, 3 deletions
diff --git a/include/asm-arm/ptrace.h b/include/asm-arm/ptrace.h
index ff038b65f370..7aaa206cb54e 100644
--- a/include/asm-arm/ptrace.h
+++ b/include/asm-arm/ptrace.h
@@ -10,6 +10,8 @@
10#ifndef __ASM_ARM_PTRACE_H 10#ifndef __ASM_ARM_PTRACE_H
11#define __ASM_ARM_PTRACE_H 11#define __ASM_ARM_PTRACE_H
12 12
13#include <asm/hwcap.h>
14
13#define PTRACE_GETREGS 12 15#define PTRACE_GETREGS 12
14#define PTRACE_SETREGS 13 16#define PTRACE_SETREGS 13
15#define PTRACE_GETFPREGS 14 17#define PTRACE_GETFPREGS 14
@@ -45,6 +47,7 @@
45#define PSR_T_BIT 0x00000020 47#define PSR_T_BIT 0x00000020
46#define PSR_F_BIT 0x00000040 48#define PSR_F_BIT 0x00000040
47#define PSR_I_BIT 0x00000080 49#define PSR_I_BIT 0x00000080
50#define PSR_A_BIT 0x00000100
48#define PSR_J_BIT 0x01000000 51#define PSR_J_BIT 0x01000000
49#define PSR_Q_BIT 0x08000000 52#define PSR_Q_BIT 0x08000000
50#define PSR_V_BIT 0x10000000 53#define PSR_V_BIT 0x10000000
@@ -121,14 +124,17 @@ struct pt_regs {
121 */ 124 */
122static inline int valid_user_regs(struct pt_regs *regs) 125static inline int valid_user_regs(struct pt_regs *regs)
123{ 126{
124 if (user_mode(regs) && 127 if (user_mode(regs) && (regs->ARM_cpsr & PSR_I_BIT) == 0) {
125 (regs->ARM_cpsr & (PSR_F_BIT|PSR_I_BIT)) == 0) 128 regs->ARM_cpsr &= ~(PSR_F_BIT | PSR_A_BIT);
126 return 1; 129 return 1;
130 }
127 131
128 /* 132 /*
129 * Force CPSR to something logical... 133 * Force CPSR to something logical...
130 */ 134 */
131 regs->ARM_cpsr &= PSR_f | PSR_s | PSR_x | PSR_T_BIT | MODE32_BIT; 135 regs->ARM_cpsr &= PSR_f | PSR_s | (PSR_x & ~PSR_A_BIT) | PSR_T_BIT | MODE32_BIT;
136 if (!(elf_hwcap & HWCAP_26BIT))
137 regs->ARM_cpsr |= USR_MODE;
132 138
133 return 0; 139 return 0;
134} 140}