2 * Copyright (C) 2002 - 2003 Jeff Dike (jdike@addtoit.com)
3 * Licensed under the GPL
11 #include "sigcontext.h"
13 #include "ptrace_user.h"
14 #include "sysdep/ptrace.h"
15 #include "sysdep/ptrace_user.h"
18 void sig_handler_common_skas(int sig, void *sc_ptr)
20 struct sigcontext *sc = sc_ptr;
22 void (*handler)(int, union uml_pt_regs *);
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);
45 handler = sig_info[sig];
47 /* unblock SIGALRM, SIGVTALRM, SIGIO if sig isn't IRQ signal */
48 if (sig != SIGIO && sig != SIGWINCH &&
49 sig != SIGVTALRM && sig != SIGALRM)
52 handler(sig, (union uml_pt_regs *) r);
55 r->is_user = save_user;
58 extern int ptrace_faultinfo;
60 void user_signal(int sig, union uml_pt_regs *regs, int pid)
62 void (*handler)(int, union uml_pt_regs *);
63 int segv = ((sig == SIGFPE) || (sig == SIGSEGV) || (sig == SIGBUS) ||
64 (sig == SIGILL) || (sig == SIGTRAP));
67 get_skas_faultinfo(pid, ®s->skas.faultinfo);
69 handler = sig_info[sig];
70 handler(sig, (union uml_pt_regs *) regs);