ptrace_user.c

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#include <errno.h>
#include <asm/ptrace.h>
#include <sysdep/ptrace.h>

int ptrace_getregs(long pid, unsigned long *regs_out)
{
    int i;
    for (i=0; i < sizeof(struct sys_pt_regs)/sizeof(PPC_REG); ++i) {
    errno = 0;
    regs_out->regs[i] = ptrace(PTRACE_PEEKUSR, pid, i*4, 0);
    if (errno) {
        return -errno;
    }
    }
    return 0;
}

int ptrace_setregs(long pid, unsigned long *regs_in)
{
    int i;
    for (i=0; i < sizeof(struct sys_pt_regs)/sizeof(PPC_REG); ++i) {
    if (i != 34 /* FIXME: PT_ORIG_R3 */ && i <= PT_MQ) {
        if (ptrace(PTRACE_POKEUSR, pid, i*4, regs_in->regs[i]) < 0) {
        return -errno;
        }
    }
    }
    return 0;
}