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| 1 | //===-- Definition of Linux signal number macros --------------------------===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | #ifndef LLVM_LIBC_MACROS_LINUX_SIGNAL_MACROS_H |
| 10 | #define LLVM_LIBC_MACROS_LINUX_SIGNAL_MACROS_H |
| 11 | |
| 12 | #define SIGHUP 1 |
| 13 | #define SIGINT 2 |
| 14 | #define SIGQUIT 3 |
| 15 | #define SIGILL 4 |
| 16 | #define SIGTRAP 5 |
| 17 | #define SIGABRT 6 |
| 18 | #define SIGIOT 6 |
| 19 | #define SIGBUS 7 |
| 20 | #define SIGFPE 8 |
| 21 | #define SIGKILL 9 |
| 22 | #define SIGUSR1 10 |
| 23 | #define SIGSEGV 11 |
| 24 | #define SIGUSR2 12 |
| 25 | #define SIGPIPE 13 |
| 26 | #define SIGALRM 14 |
| 27 | #define SIGTERM 15 |
| 28 | #define SIGSTKFLT 16 |
| 29 | #define SIGCHLD 17 |
| 30 | #define SIGCONT 18 |
| 31 | #define SIGSTOP 19 |
| 32 | #define SIGTSTP 20 |
| 33 | #define SIGTTIN 21 |
| 34 | #define SIGTTOU 22 |
| 35 | #define SIGURG 23 |
| 36 | #define SIGXCPU 24 |
| 37 | #define SIGXFSZ 25 |
| 38 | #define SIGVTALRM 26 |
| 39 | #define SIGPROF 27 |
| 40 | #define SIGWINCH 28 |
| 41 | #define SIGIO 29 |
| 42 | #define SIGPOLL SIGIO |
| 43 | #define SIGPWR 30 |
| 44 | #define SIGSYS 31 |
| 45 | |
| 46 | // Max signal number |
| 47 | #define NSIG 64 |
| 48 | |
| 49 | // SIGRTMIN is current set to the minimum usable from user mode programs. If |
| 50 | // the libc itself uses some of these signal numbers for private operations, |
| 51 | // then it has to be adjusted in future to reflect that. |
| 52 | #define SIGRTMIN 32 |
| 53 | |
| 54 | #define SIGRTMAX NSIG |
| 55 | |
| 56 | // The kernel sigset is stored as an array of long values. Each bit of this |
| 57 | // array corresponds to a signal, adjusted by 1. That is, bit 0 corresponds |
| 58 | // to signal number 1, bit 1 corresponds to signal number 2 and so on. The |
| 59 | // below macro denotes the size of that array (in number of long words and |
| 60 | // not bytes). |
| 61 | #define __NSIGSET_WORDS (NSIG / (sizeof(unsigned long) * 8)) |
| 62 | |
| 63 | #define SIG_BLOCK 0 // For blocking signals |
| 64 | #define SIG_UNBLOCK 1 // For unblocking signals |
| 65 | #define SIG_SETMASK 2 // For setting signal mask |
| 66 | |
| 67 | // Flag values to be used for setting sigaction.sa_flags. |
| 68 | #define SA_NOCLDSTOP 0x00000001 |
| 69 | #define SA_NOCLDWAIT 0x00000002 |
| 70 | #define SA_SIGINFO 0x00000004 |
| 71 | #define SA_RESTART 0x10000000 |
| 72 | #define SA_RESTORER 0x04000000 |
| 73 | #define SA_ONSTACK 0x08000000 |
| 74 | |
| 75 | // Signal stack flags |
| 76 | #define SS_ONSTACK 0x1 |
| 77 | #define SS_DISABLE 0x2 |
| 78 | |
| 79 | #if defined(__x86_64__) || defined(__i386__) || defined(__riscv) |
| 80 | #define MINSIGSTKSZ 2048 |
| 81 | #define SIGSTKSZ 8192 |
| 82 | #elif defined(__aarch64__) |
| 83 | #define MINSIGSTKSZ 5120 |
| 84 | #define SIGSTKSZ 16384 |
| 85 | #else |
| 86 | #error "Signal stack sizes not defined for your platform." |
| 87 | #endif |
| 88 | |
| 89 | #define SIG_DFL ((void (*)(int))0) |
| 90 | #define SIG_IGN ((void (*)(int))1) |
| 91 | #define SIG_ERR ((void (*)(int))(-1)) |
| 92 | |
| 93 | // SIGCHLD si_codes |
| 94 | #define CLD_EXITED 1 // child has exited |
| 95 | #define CLD_KILLED 2 // child was killed |
| 96 | #define CLD_DUMPED 3 // child terminated abnormally |
| 97 | #define CLD_TRAPPED 4 // traced child has trapped |
| 98 | #define CLD_STOPPED 5 // child has stopped |
| 99 | #define CLD_CONTINUED 6 // stopped child has continued |
| 100 | |
| 101 | #endif // LLVM_LIBC_MACROS_LINUX_SIGNAL_MACROS_H |
| 102 |
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