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1 // Copyright 2015 The Chromium Authors. All rights reserved. | 1 // Copyright 2015 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef SANDBOX_LINUX_SYSTEM_HEADERS_LINUX_SIGNAL_H_ | 5 #ifndef SANDBOX_LINUX_SYSTEM_HEADERS_LINUX_SIGNAL_H_ |
6 #define SANDBOX_LINUX_SYSTEM_HEADERS_LINUX_SIGNAL_H_ | 6 #define SANDBOX_LINUX_SYSTEM_HEADERS_LINUX_SIGNAL_H_ |
7 | 7 |
8 // NOTE: On some toolchains, signal related ABI is incompatible with Linux's | 8 // NOTE: On some toolchains, signal related ABI is incompatible with Linux's |
9 // (not undefined, but defined different values and in different memory | 9 // (not undefined, but defined different values and in different memory |
10 // layouts). So, fill the gap here. | 10 // layouts). So, fill the gap here. |
| 11 #define LINUX_SIGHUP 1 |
| 12 #define LINUX_SIGINT 2 |
| 13 #define LINUX_SIGQUIT 3 |
| 14 #define LINUX_SIGABRT 6 |
| 15 #define LINUX_SIGBUS 7 |
| 16 #define LINUX_SIGUSR1 10 |
| 17 #define LINUX_SIGSEGV 11 |
| 18 #define LINUX_SIGUSR2 12 |
| 19 #define LINUX_SIGPIPE 13 |
| 20 #define LINUX_SIGTERM 15 |
| 21 #define LINUX_SIGCHLD 17 |
| 22 #define LINUX_SIGSYS 31 |
| 23 |
| 24 #define LINUX_SIG_BLOCK 0 |
| 25 #define LINUX_SIG_UNBLOCK 1 |
| 26 |
| 27 #define LINUX_SA_SIGINFO 4 |
| 28 #define LINUX_SA_NODEFER 0x40000000 |
| 29 #define LINUX_SA_RESTART 0x10000000 |
| 30 |
| 31 #define LINUX_SIG_DFL 0 |
11 | 32 |
12 #if defined(__native_client_nonsfi__) | 33 #if defined(__native_client_nonsfi__) |
13 #if !defined(__i386__) && !defined(__arm__) | 34 #if !defined(__i386__) && !defined(__arm__) |
14 #error "Unsupported platform" | 35 #error "Unsupported platform" |
15 #endif | 36 #endif |
16 | 37 |
17 #include <signal.h> | 38 #include <signal.h> |
18 | 39 |
19 #define LINUX_SIGBUS 7 // 10 in PNaCl toolchain. | |
20 #define LINUX_SIGSEGV 11 // 11 in PNaCl toolchain. Defined for consistency. | |
21 #define LINUX_SIGCHLD 17 // 20 in PNaCl toolchain. | |
22 #define LINUX_SIGSYS 31 // 12 in PNaCl toolchain. | |
23 | |
24 #define LINUX_SIG_BLOCK 0 // 1 in PNaCl toolchain. | |
25 #define LINUX_SIG_UNBLOCK 1 // 2 in PNaCl toolchain. | |
26 | |
27 #define LINUX_SA_SIGINFO 4 // 2 in PNaCl toolchain. | |
28 #define LINUX_SA_NODEFER 0x40000000 // Undefined in PNaCl toolchain. | |
29 #define LINUX_SA_RESTART 0x10000000 // Undefined in PNaCl toolchain. | |
30 | |
31 #define LINUX_SIG_DFL 0 // In PNaCl toolchain, unneeded cast is applied. | |
32 | |
33 struct LinuxSigInfo { | 40 struct LinuxSigInfo { |
34 int si_signo; | 41 int si_signo; |
35 int si_errno; | 42 int si_errno; |
36 int si_code; | 43 int si_code; |
37 | 44 |
38 // Extra data is followed by the |si_code|. The length depends on the | 45 // Extra data is followed by the |si_code|. The length depends on the |
39 // signal number. | 46 // signal number. |
40 char _sifields[1]; | 47 char _sifields[1]; |
41 }; | 48 }; |
42 | 49 |
43 #include "sandbox/linux/system_headers/linux_ucontext.h" | 50 #include "sandbox/linux/system_headers/linux_ucontext.h" |
44 | 51 |
45 #else // !defined(__native_client_nonsfi__) | 52 #else // !defined(__native_client_nonsfi__) |
46 | 53 |
47 // Just alias the toolchain's value. | |
48 #include <signal.h> | 54 #include <signal.h> |
49 | 55 |
50 #define LINUX_SIGBUS SIGBUS | 56 static_assert(LINUX_SIGHUP == SIGHUP, "LINUX_SIGHUP == SIGHUP"); |
51 #define LINUX_SIGSEGV SIGSEGV | 57 static_assert(LINUX_SIGINT == SIGINT, "LINUX_SIGINT == SIGINT"); |
52 #define LINUX_SIGCHLD SIGCHLD | 58 static_assert(LINUX_SIGQUIT == SIGQUIT, "LINUX_SIGQUIT == SIGQUIT"); |
53 #define LINUX_SIGSYS SIGSYS | 59 static_assert(LINUX_SIGABRT == SIGABRT, "LINUX_SIGABRT == SIGABRT"); |
54 | 60 static_assert(LINUX_SIGBUS == SIGBUS, "LINUX_SIGBUS == SIGBUS"); |
55 #define LINUX_SIG_BLOCK SIG_BLOCK | 61 static_assert(LINUX_SIGUSR1 == SIGUSR1, "LINUX_SIGUSR1 == SIGUSR1"); |
56 #define LINUX_SIG_UNBLOCK SIG_UNBLOCK | 62 static_assert(LINUX_SIGSEGV == SIGSEGV, "LINUX_SIGSEGV == SIGSEGV"); |
57 | 63 static_assert(LINUX_SIGUSR2 == SIGUSR2, "LINUX_SIGUSR2 == SIGUSR2"); |
58 #define LINUX_SA_SIGINFO SA_SIGINFO | 64 static_assert(LINUX_SIGPIPE == SIGPIPE, "LINUX_SIGPIPE == SIGPIPE"); |
59 #define LINUX_SA_NODEFER SA_NODEFER | 65 static_assert(LINUX_SIGTERM == SIGTERM, "LINUX_SIGTERM == SIGTERM"); |
60 #define LINUX_SA_RESTART SA_RESTART | 66 static_assert(LINUX_SIGCHLD == SIGCHLD, "LINUX_SIGCHLD == SIGCHLD"); |
61 | 67 static_assert(LINUX_SIGSYS == SIGSYS, "LINUX_SIGSYS == SIGSYS"); |
62 #define LINUX_SIG_DFL SIG_DFL | 68 static_assert(LINUX_SIG_BLOCK == SIG_BLOCK, "LINUX_SIG_BLOCK == SIG_BLOCK"); |
| 69 static_assert(LINUX_SIG_UNBLOCK == SIG_UNBLOCK, |
| 70 "LINUX_SIG_UNBLOCK == SIG_UNBLOCK"); |
| 71 static_assert(LINUX_SA_SIGINFO == SA_SIGINFO, "LINUX_SA_SIGINFO == SA_SIGINFO"); |
| 72 static_assert(LINUX_SA_NODEFER == SA_NODEFER, "LINUX_SA_NODEFER == SA_NODEFER"); |
| 73 static_assert(LINUX_SA_RESTART == SA_RESTART, "LINUX_SA_RESTART == SA_RESTART"); |
| 74 static_assert(LINUX_SIG_DFL == SIG_DFL, "LINUX_SIG_DFL == SIG_DFL"); |
63 | 75 |
64 typedef siginfo_t LinuxSigInfo; | 76 typedef siginfo_t LinuxSigInfo; |
65 | 77 |
66 #if defined(__ANDROID__) | 78 #if defined(__ANDROID__) |
67 // Android's signal.h doesn't define ucontext etc. | 79 // Android's signal.h doesn't define ucontext etc. |
68 #include "sandbox/linux/system_headers/linux_ucontext.h" | 80 #include "sandbox/linux/system_headers/linux_ucontext.h" |
69 #endif // defined(__ANDROID__) | 81 #endif // defined(__ANDROID__) |
70 | 82 |
71 #endif // !defined(__native_client_nonsfi__) | 83 #endif // !defined(__native_client_nonsfi__) |
72 | 84 |
73 #endif // SANDBOX_LINUX_SYSTEM_HEADERS_LINUX_SIGNAL_H_ | 85 #endif // SANDBOX_LINUX_SYSTEM_HEADERS_LINUX_SIGNAL_H_ |
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