| //===-- Definition of Linux signal number macros --------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #ifndef __LLVM_LIBC_MACROS_LINUX_SIGNUM_MACROS_H |
| #define __LLVM_LIBC_MACROS_LINUX_SIGNUM_MACROS_H |
| |
| #define SIGHUP 1 |
| #define SIGINT 2 |
| #define SIGQUIT 3 |
| #define SIGILL 4 |
| #define SIGTRAP 5 |
| #define SIGABRT 6 |
| #define SIGIOT 6 |
| #define SIGBUS 7 |
| #define SIGFPE 8 |
| #define SIGKILL 9 |
| #define SIGUSR1 10 |
| #define SIGSEGV 11 |
| #define SIGUSR2 12 |
| #define SIGPIPE 13 |
| #define SIGALRM 14 |
| #define SIGTERM 15 |
| #define SIGSTKFLT 16 |
| #define SIGCHLD 17 |
| #define SIGCONT 18 |
| #define SIGSTOP 19 |
| #define SIGTSTP 20 |
| #define SIGTTIN 21 |
| #define SIGTTOU 22 |
| #define SIGURG 23 |
| #define SIGXCPU 24 |
| #define SIGXFSZ 25 |
| #define SIGVTALRM 26 |
| #define SIGPROF 27 |
| #define SIGWINCH 28 |
| #define SIGIO 29 |
| #define SIGPOLL SIGIO |
| #define SIGPWR 30 |
| #define SIGSYS 31 |
| |
| // Max signal number |
| #define NSIG 64 |
| |
| // SIGRTMIN is current set to the minimum usable from user mode programs. If |
| // the libc itself uses some of these signal numbers for private operations, |
| // then it has to be adjusted in future to reflect that. |
| #define SIGRTMIN 32 |
| |
| #define SIGRTMAX NSIG |
| |
| // The kernel sigset is stored as an array of long values. Each bit of this |
| // array corresponds to a signal, adjusted by 1. That is, bit 0 corresponds |
| // to signal number 1, bit 1 corresponds to signal number 2 and so on. The |
| // below macro denotes the size of that array (in number of long words and |
| // not bytes). |
| #define __NSIGSET_WORDS (NSIG / (sizeof(unsigned long) * 8)) |
| |
| #define SIG_BLOCK 0 // For blocking signals |
| #define SIG_UNBLOCK 1 // For unblocking signals |
| #define SIG_SETMASK 2 // For setting signal mask |
| |
| // Flag values to be used for setting sigaction.sa_flags. |
| #define SA_NOCLDSTOP 0x00000001 |
| #define SA_NOCLDWAIT 0x00000002 |
| #define SA_SIGINFO 0x00000004 |
| #define SA_RESTART 0x10000000 |
| #define SA_RESTORER 0x04000000 |
| #define SA_ONSTACK 0x08000000 |
| |
| // Signal stack flags |
| #define SS_ONSTACK 0x1 |
| #define SS_DISABLE 0x2 |
| |
| #ifdef __x86_64__ |
| #define MINSIGSTKSZ 2048 |
| #define SIGSTKSZ 8192 |
| #elif defined(__aarch64__) |
| #define MINSIGSTKSZ 5120 |
| #define SIGSTKSZ 16384 |
| #elif defined(__riscv) |
| #define MINSIGSTKSZ 2048 |
| #define SIGSTKSZ 8192 |
| #else |
| #error "Signal stack sizes not defined for your platform." |
| #endif |
| |
| #define SIG_DFL ((__sighandler_t)0) |
| #define SIG_IGN ((__sighandler_t)1) |
| #define SIG_ERR ((__sighandler_t)-1) |
| |
| #endif // __LLVM_LIBC_MACROS_LINUX_SIGNUM_MACROS_H |