xref: /OK3568_Linux_fs/kernel/arch/x86/um/stub_segv.c (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun  * Copyright (C) 2004 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
3*4882a593Smuzhiyun  * Licensed under the GPL
4*4882a593Smuzhiyun  */
5*4882a593Smuzhiyun 
6*4882a593Smuzhiyun #include <sysdep/stub.h>
7*4882a593Smuzhiyun #include <sysdep/faultinfo.h>
8*4882a593Smuzhiyun #include <sysdep/mcontext.h>
9*4882a593Smuzhiyun #include <sys/ucontext.h>
10*4882a593Smuzhiyun 
11*4882a593Smuzhiyun void __attribute__ ((__section__ (".__syscall_stub")))
stub_segv_handler(int sig,siginfo_t * info,void * p)12*4882a593Smuzhiyun stub_segv_handler(int sig, siginfo_t *info, void *p)
13*4882a593Smuzhiyun {
14*4882a593Smuzhiyun 	ucontext_t *uc = p;
15*4882a593Smuzhiyun 
16*4882a593Smuzhiyun 	GET_FAULTINFO_FROM_MC(*((struct faultinfo *) STUB_DATA),
17*4882a593Smuzhiyun 			      &uc->uc_mcontext);
18*4882a593Smuzhiyun 	trap_myself();
19*4882a593Smuzhiyun }
20*4882a593Smuzhiyun 
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