diff options
Diffstat (limited to 'include/asm-arm/ptrace.h')
| -rw-r--r-- | include/asm-arm/ptrace.h | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/include/asm-arm/ptrace.h b/include/asm-arm/ptrace.h index 2d0dad8c10ac..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) @@ -112,22 +119,22 @@ struct pt_regs { #define fast_interrupts_enabled(regs) \ (!((regs)->ARM_cpsr & PSR_F_BIT)) -#define condition_codes(regs) \ - ((regs)->ARM_cpsr & (PSR_V_BIT|PSR_C_BIT|PSR_Z_BIT|PSR_N_BIT)) - /* Are the current registers suitable for user mode? * (used to maintain security in signal handlers) */ 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; } |