1da177e4c3
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
72 lines
1.7 KiB
C
72 lines
1.7 KiB
C
/*
|
|
* Copyright (C) 2002 - 2003 Jeff Dike (jdike@addtoit.com)
|
|
* Licensed under the GPL
|
|
*/
|
|
|
|
#include <signal.h>
|
|
#include <errno.h>
|
|
#include "sysdep/ptrace.h"
|
|
#include "signal_user.h"
|
|
#include "user_util.h"
|
|
#include "kern_util.h"
|
|
#include "task.h"
|
|
#include "sigcontext.h"
|
|
|
|
void sig_handler_common_skas(int sig, void *sc_ptr)
|
|
{
|
|
struct sigcontext *sc = sc_ptr;
|
|
struct skas_regs *r;
|
|
struct signal_info *info;
|
|
int save_errno = errno;
|
|
int save_user;
|
|
|
|
/* This is done because to allow SIGSEGV to be delivered inside a SEGV
|
|
* handler. This can happen in copy_user, and if SEGV is disabled,
|
|
* the process will die.
|
|
* XXX Figure out why this is better than SA_NODEFER
|
|
*/
|
|
if(sig == SIGSEGV)
|
|
change_sig(SIGSEGV, 1);
|
|
|
|
r = &TASK_REGS(get_current())->skas;
|
|
save_user = r->is_user;
|
|
r->is_user = 0;
|
|
r->fault_addr = SC_FAULT_ADDR(sc);
|
|
r->fault_type = SC_FAULT_TYPE(sc);
|
|
r->trap_type = SC_TRAP_TYPE(sc);
|
|
|
|
change_sig(SIGUSR1, 1);
|
|
info = &sig_info[sig];
|
|
if(!info->is_irq) unblock_signals();
|
|
|
|
(*info->handler)(sig, (union uml_pt_regs *) r);
|
|
|
|
errno = save_errno;
|
|
r->is_user = save_user;
|
|
}
|
|
|
|
void user_signal(int sig, union uml_pt_regs *regs)
|
|
{
|
|
struct signal_info *info;
|
|
|
|
regs->skas.is_user = 1;
|
|
regs->skas.fault_addr = 0;
|
|
regs->skas.fault_type = 0;
|
|
regs->skas.trap_type = 0;
|
|
info = &sig_info[sig];
|
|
(*info->handler)(sig, regs);
|
|
|
|
unblock_signals();
|
|
}
|
|
|
|
/*
|
|
* Overrides for Emacs so that we follow Linus's tabbing style.
|
|
* Emacs will notice this stuff at the end of the file and automatically
|
|
* adjust the settings for this buffer only. This must remain at the end
|
|
* of the file.
|
|
* ---------------------------------------------------------------------------
|
|
* Local variables:
|
|
* c-file-style: "linux"
|
|
* End:
|
|
*/
|