2 * Copyright (C) 2002 - 2003 Jeff Dike (jdike@addtoit.com)
3 * Licensed under the GPL
8 #include "signal_user.h"
10 #include "kern_util.h"
12 #include "sigcontext.h"
14 #include "ptrace_user.h"
15 #include "sysdep/ptrace.h"
16 #include "sysdep/ptrace_user.h"
18 void sig_handler_common_skas(int sig, void *sc_ptr)
20 struct sigcontext *sc = sc_ptr;
22 struct signal_info *info;
23 int save_errno = errno;
26 /* This is done because to allow SIGSEGV to be delivered inside a SEGV
27 * handler. This can happen in copy_user, and if SEGV is disabled,
28 * the process will die.
29 * XXX Figure out why this is better than SA_NODEFER
32 change_sig(SIGSEGV, 1);
34 r = &TASK_REGS(get_current())->skas;
35 save_user = r->is_user;
37 if ( sig == SIGFPE || sig == SIGSEGV ||
38 sig == SIGBUS || sig == SIGILL ||
40 GET_FAULTINFO_FROM_SC(r->faultinfo, sc);
43 change_sig(SIGUSR1, 1);
44 info = &sig_info[sig];
45 if(!info->is_irq) unblock_signals();
47 (*info->handler)(sig, (union uml_pt_regs *) r);
50 r->is_user = save_user;
53 extern int ptrace_faultinfo;
55 void user_signal(int sig, union uml_pt_regs *regs, int pid)
57 struct signal_info *info;
58 int segv = ((sig == SIGFPE) || (sig == SIGSEGV) || (sig == SIGBUS) ||
59 (sig == SIGILL) || (sig == SIGTRAP));
61 regs->skas.is_user = 1;
63 get_skas_faultinfo(pid, ®s->skas.faultinfo);
64 info = &sig_info[sig];
65 (*info->handler)(sig, regs);
71 * Overrides for Emacs so that we follow Linus's tabbing style.
72 * Emacs will notice this stuff at the end of the file and automatically
73 * adjust the settings for this buffer only. This must remain at the end
75 * ---------------------------------------------------------------------------
77 * c-file-style: "linux"