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1 | /* Translate Mach exception codes into signal numbers. Stub version. | |
2 | Copyright (C) 1991-2017 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 | <http://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 | ||
28 | void | |
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 | } |