2 * Copyright (C) 2004 Jeff Dike (jdike@addtoit.com)
3 * Licensed under the GPL
6 #include <asm/signal.h>
7 #include <linux/compiler.h>
8 #include <asm/unistd.h>
9 #include <asm/ucontext.h>
10 #include "uml-config.h"
11 #include "sysdep/sigcontext.h"
12 #include "sysdep/faultinfo.h"
14 void __attribute__ ((__section__ (".__syscall_stub")))
15 stub_segv_handler(int sig)
19 __asm__("movq %%rdx, %0" : "=g" (uc) :);
20 GET_FAULTINFO_FROM_SC(*((struct faultinfo *) UML_CONFIG_STUB_DATA),
23 __asm__("movq %0, %%rax ; syscall": : "g" (__NR_getpid));
24 __asm__("movq %%rax, %%rdi ; movq %0, %%rax ; movq %1, %%rsi ;"
25 "syscall": : "g" (__NR_kill), "g" (SIGUSR1));
26 /* Two popqs to restore the stack to the state just before entering
27 * the handler, one pops the return address, the other pops the frame
30 __asm__("popq %%rax ; popq %%rax ; movq %0, %%rax ; syscall" : : "g"