1/* Translate Mach exception codes into signal numbers. Stub version.
2 Copyright (C) 1991-2022 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#include <hurd.h>
20#include <hurd/signal.h>
21
22/* This file must be modified with machine-dependent details. */
23#error "need to write sysdeps/mach/hurd/MACHINE/exc2signal.c"
24
25/* Translate the Mach exception codes, as received in an `exception_raise' RPC,
26 into a signal number and signal subcode. */
27
28void
29_hurd_exception2signal (struct hurd_signal_detail *detail, int *signo)
30{
31 detail->error = 0;
32
33 switch (detail->exc)
34 {
35 default:
36 *signo = SIGIOT;
37 detail->code = detail->exc;
38 break;
39
40 case EXC_BAD_ACCESS:
41 if (detail->exc_code == KERN_PROTECTION_FAILURE)
42 *signo = SIGSEGV;
43 else
44 *signo = SIGBUS;
45 detail->code = detail->exc_subcode;
46 detail->error = detail->exc_code;
47 break;
48
49 case EXC_BAD_INSTRUCTION:
50 *signo = SIGILL;
51 detail->code = 0;
52 break;
53
54 case EXC_ARITHMETIC:
55 *signo = SIGFPE;
56 detail->code = 0;
57 break;
58
59 case EXC_EMULATION:
60 case EXC_SOFTWARE:
61 *signo = SIGEMT;
62 detail->code = 0;
63 break;
64
65 case EXC_BREAKPOINT:
66 *signo = SIGTRAP;
67 detail->code = 0;
68 break;
69 }
70}
71libc_hidden_def (_hurd_exception2signal)
72

source code of glibc/hurd/exc2signal.c