如何使用ptrace()获得arm CPU的寄存器信息

struct pt_regs {

    long uregs[18];

};



#define ARM_cpsr uregs[16]

#define ARM_pc uregs[15]

#define ARM_lr uregs[14]

#define ARM_sp uregs[13]

#define ARM_ip uregs[12]

#define ARM_fp uregs[11]

#define ARM_r10 uregs[10]

#define ARM_r9 uregs[9]

#define ARM_r8 uregs[8]

#define ARM_r7 uregs[7]

#define ARM_r6 uregs[6]

#define ARM_r5 uregs[5]

#define ARM_r4 uregs[4]

#define ARM_r3 uregs[3]

#define ARM_r2 uregs[2]

#define ARM_r1 uregs[1]

#define ARM_r0 uregs[0]

int main(int argc, char *argv[])

{

        pid_t traced_process;

        struct pt_regs regs;

        long ins;



        if ( argc != 2 ) {

                printf("Usage: %s <pid to be traced>", argv[0]);

                exit(1);

        }



        traced_process = atoi(argv[1]);

        ptrace(PTRACE_ATTACH, traced_process, NULL, NULL);

        wait(NULL);

        ptrace(PTRACE_GETREGS, traced_process, NULL, ®s);

        ins = ptrace(PTRACE_PEEKTEXT, traced_process, 

                                regs.ARM_ip, NULL);

        printf("EIP: %lx Instructions executed: %lx\n", regs.ARM_ip, ins);

        ptrace(PTRACE_DETACH, traced_process, NULL, NULL);



        return 0;

}