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support PTRACE_GETREGS

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This commit is contained in:
Tomoki Shirasawa
2014-10-10 13:58:42 +09:00
parent 4b46330624
commit fef946e5ff
2 changed files with 91 additions and 1 deletions
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39
arch/x86/kernel/syscall.c
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@ -195,6 +195,45 @@ do_setpgid(int pid, int pgid)
}
}
void
pokeuser(struct process *proc, void *regs0)
{
struct x86_regs *regs = regs0;
if(regs == NULL){
asm("movq %%gs:132, %0" : "=r" (regs));
--regs;
}
asm("mov %0, %%db0" ::"r" (proc->userp->u_debugreg[0]));
asm("mov %0, %%db1" ::"r" (proc->userp->u_debugreg[1]));
asm("mov %0, %%db2" ::"r" (proc->userp->u_debugreg[2]));
asm("mov %0, %%db3" ::"r" (proc->userp->u_debugreg[3]));
// asm("mov %0, %%db4" ::"r" (proc->userp->u_debugreg[4]));
// asm("mov %0, %%db5" ::"r" (proc->userp->u_debugreg[5]));
asm("mov %0, %%db6" ::"r" (proc->userp->u_debugreg[6]));
asm("mov %0, %%db7" ::"r" (proc->userp->u_debugreg[7]));
regs->r15 = proc->userp->regs.r15;
regs->r14 = proc->userp->regs.r14;
regs->r13 = proc->userp->regs.r13;
regs->r12 = proc->userp->regs.r12;
regs->rbp = proc->userp->regs.rbp;
regs->rbx = proc->userp->regs.rbx;
regs->r11 = proc->userp->regs.r11;
regs->r10 = proc->userp->regs.r10;
regs->r9 = proc->userp->regs.r9;
regs->r8 = proc->userp->regs.r8;
regs->rax = proc->userp->regs.rax;
regs->rcx = proc->userp->regs.rcx;
regs->rdx = proc->userp->regs.rdx;
regs->rsi = proc->userp->regs.rsi;
regs->rdi = proc->userp->regs.rdi;
regs->rip = proc->userp->regs.rip;
regs->cs = proc->userp->regs.cs;
regs->rflags = proc->userp->regs.eflags;
regs->rsp = proc->userp->regs.rsp;
regs->ss = proc->userp->regs.ss;
}
void
peekuser(struct process *proc, void *regs0)
{