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-rw-r--r--arch/um/os-Linux/skas/trap.c73
1 files changed, 0 insertions, 73 deletions
diff --git a/arch/um/os-Linux/skas/trap.c b/arch/um/os-Linux/skas/trap.c
deleted file mode 100644
index a19a74f08fa9..000000000000
--- a/arch/um/os-Linux/skas/trap.c
+++ /dev/null
@@ -1,73 +0,0 @@
1/*
2 * Copyright (C) 2002 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
3 * Licensed under the GPL
4 */
5
6#include <errno.h>
7#include <signal.h>
8#include "sysdep/ptrace.h"
9#include "kern_constants.h"
10#include "as-layout.h"
11#include "kern_util.h"
12#include "os.h"
13#include "sigcontext.h"
14#include "task.h"
15
16void (*sig_info[NSIG])(int, struct uml_pt_regs *) = {
17 [SIGTRAP] = relay_signal,
18 [SIGFPE] = relay_signal,
19 [SIGILL] = relay_signal,
20 [SIGWINCH] = winch,
21 [SIGBUS] = bus_handler,
22 [SIGSEGV] = segv_handler,
23 [SIGIO] = sigio_handler,
24 [SIGVTALRM] = timer_handler };
25
26static struct uml_pt_regs ksig_regs[UM_NR_CPUS];
27
28void sig_handler_common_skas(int sig, void *sc_ptr)
29{
30 struct sigcontext *sc = sc_ptr;
31 struct uml_pt_regs *r;
32 void (*handler)(int, struct uml_pt_regs *);
33 int save_user, save_errno = errno;
34
35 /*
36 * This is done because to allow SIGSEGV to be delivered inside a SEGV
37 * handler. This can happen in copy_user, and if SEGV is disabled,
38 * the process will die.
39 * XXX Figure out why this is better than SA_NODEFER
40 */
41 if (sig == SIGSEGV) {
42 change_sig(SIGSEGV, 1);
43 /*
44 * For segfaults, we want the data from the
45 * sigcontext. In this case, we don't want to mangle
46 * the process registers, so use a static set of
47 * registers. For other signals, the process
48 * registers are OK.
49 */
50 r = &ksig_regs[cpu()];
51 copy_sc(r, sc_ptr);
52 }
53 else r = TASK_REGS(get_current());
54
55 save_user = r->is_user;
56 r->is_user = 0;
57 if ((sig == SIGFPE) || (sig == SIGSEGV) || (sig == SIGBUS) ||
58 (sig == SIGILL) || (sig == SIGTRAP))
59 GET_FAULTINFO_FROM_SC(r->faultinfo, sc);
60
61 change_sig(SIGUSR1, 1);
62
63 handler = sig_info[sig];
64
65 /* unblock SIGVTALRM, SIGIO if sig isn't IRQ signal */
66 if ((sig != SIGIO) && (sig != SIGWINCH) && (sig != SIGVTALRM))
67 unblock_signals();
68
69 handler(sig, r);
70
71 errno = save_errno;
72 r->is_user = save_user;
73}