30 lines
869 B
C
30 lines
869 B
C
/*
|
|
* Copyright (C) 2004 Jeff Dike (jdike@addtoit.com)
|
|
* Licensed under the GPL
|
|
*/
|
|
|
|
#include <asm/signal.h>
|
|
#include <asm/unistd.h>
|
|
#include "uml-config.h"
|
|
#include "sysdep/sigcontext.h"
|
|
#include "sysdep/faultinfo.h"
|
|
|
|
void __attribute__ ((__section__ (".__syscall_stub")))
|
|
stub_segv_handler(int sig)
|
|
{
|
|
struct sigcontext *sc = (struct sigcontext *) (&sig + 1);
|
|
|
|
GET_FAULTINFO_FROM_SC(*((struct faultinfo *) UML_CONFIG_STUB_DATA),
|
|
sc);
|
|
|
|
__asm__("movl %0, %%eax ; int $0x80": : "g" (__NR_getpid));
|
|
__asm__("movl %%eax, %%ebx ; movl %0, %%eax ; movl %1, %%ecx ;"
|
|
"int $0x80": : "g" (__NR_kill), "g" (SIGUSR1));
|
|
/* Load pointer to sigcontext into esp, since we need to leave
|
|
* the stack in its original form when we do the sigreturn here, by
|
|
* hand.
|
|
*/
|
|
__asm__("mov %0,%%esp ; movl %1, %%eax ; "
|
|
"int $0x80" : : "a" (sc), "g" (__NR_sigreturn));
|
|
}
|