void copy_sc(union uml_pt_regs *regs, void *from)
{
struct sigcontext *sc = from;
REGS_GS(regs->skas.regs) = sc->gs;
REGS_FS(regs->skas.regs) = sc->fs;
REGS_ES(regs->skas.regs) = sc->es;
REGS_DS(regs->skas.regs) = sc->ds;
REGS_EDI(regs->skas.regs) = sc->edi;
REGS_ESI(regs->skas.regs) = sc->esi;
REGS_EBP(regs->skas.regs) = sc->ebp;
REGS_SP(regs->skas.regs) = sc->esp;
REGS_EBX(regs->skas.regs) = sc->ebx;
REGS_EDX(regs->skas.regs) = sc->edx;
REGS_ECX(regs->skas.regs) = sc->ecx;
REGS_EAX(regs->skas.regs) = sc->eax;
REGS_IP(regs->skas.regs) = sc->eip;
REGS_CS(regs->skas.regs) = sc->cs;
REGS_EFLAGS(regs->skas.regs) = sc->eflags;
REGS_SS(regs->skas.regs) = sc->ss;
}
static int copy_sc_from_user_skas(struct pt_regs *regs,
struct sigcontext *from)
{
struct sigcontext sc;
unsigned long fpregs[HOST_FP_SIZE];
int err;
err = copy_from_user(&sc, from, sizeof(sc));
err |= copy_from_user(fpregs, sc.fpstate, sizeof(fpregs));
if(err)
return(err);
REGS_GS(regs->regs.skas.regs) = sc.gs;
REGS_FS(regs->regs.skas.regs) = sc.fs;
REGS_ES(regs->regs.skas.regs) = sc.es;
REGS_DS(regs->regs.skas.regs) = sc.ds;
REGS_EDI(regs->regs.skas.regs) = sc.edi;
REGS_ESI(regs->regs.skas.regs) = sc.esi;
REGS_EBP(regs->regs.skas.regs) = sc.ebp;
REGS_SP(regs->regs.skas.regs) = sc.esp;
REGS_EBX(regs->regs.skas.regs) = sc.ebx;
REGS_EDX(regs->regs.skas.regs) = sc.edx;
REGS_ECX(regs->regs.skas.regs) = sc.ecx;
REGS_EAX(regs->regs.skas.regs) = sc.eax;
REGS_IP(regs->regs.skas.regs) = sc.eip;
REGS_CS(regs->regs.skas.regs) = sc.cs;
REGS_EFLAGS(regs->regs.skas.regs) = sc.eflags;
REGS_SS(regs->regs.skas.regs) = sc.ss;
err = restore_fp_registers(userspace_pid[0], fpregs);
if(err < 0){
printk("copy_sc_from_user_skas - PTRACE_SETFPREGS failed, "
"errno = %d\n", err);
return(1);
}
return(0);
}