| * Copyright (C) 2004 Jeff Dike (jdike@addtoit.com) |
| #include <linux/compiler.h> |
| #include <asm/ucontext.h> |
| #include "sysdep/sigcontext.h" |
| #include "sysdep/faultinfo.h" |
| void __attribute__ ((__section__ (".__syscall_stub"))) |
| stub_segv_handler(int sig) |
| __asm__("movq %%rdx, %0" : "=g" (uc) :); |
| GET_FAULTINFO_FROM_SC(*((struct faultinfo *) UML_CONFIG_STUB_DATA), |
| __asm__("movq %0, %%rax ; syscall": : "g" (__NR_getpid)); |
| __asm__("movq %%rax, %%rdi ; movq %0, %%rax ; movq %1, %%rsi ;" |
| "syscall": : "g" (__NR_kill), "g" (SIGUSR1)); |
| /* Two popqs to restore the stack to the state just before entering |
| * the handler, one pops the return address, the other pops the frame |
| __asm__("popq %%rax ; popq %%rax ; movq %0, %%rax ; syscall" : : "g" |