diff options
Diffstat (limited to 'libc-top-half/musl/include/signal.h')
| -rw-r--r-- | libc-top-half/musl/include/signal.h | 339 |
1 files changed, 339 insertions, 0 deletions
diff --git a/libc-top-half/musl/include/signal.h b/libc-top-half/musl/include/signal.h new file mode 100644 index 0000000..75b5e55 --- /dev/null +++ b/libc-top-half/musl/include/signal.h @@ -0,0 +1,339 @@ +#ifndef _WASI_EMULATED_SIGNAL +#error "wasm lacks signal support; to enable minimal signal emulation, \ +compile with -D_WASI_EMULATED_SIGNAL and link with -lwasi-emulated-signal" +#else +#ifndef _SIGNAL_H +#define _SIGNAL_H + +#ifdef __cplusplus +extern "C" { +#endif + +#include <features.h> + +#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \ + || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \ + || defined(_BSD_SOURCE) + +#ifdef __wasilibc_unmodified_upstream /* WASI has no ucontext support */ +#ifdef _GNU_SOURCE +#define __ucontext ucontext +#endif + +#define __NEED_size_t +#define __NEED_pid_t +#define __NEED_uid_t +#define __NEED_struct_timespec +#define __NEED_pthread_t +#define __NEED_pthread_attr_t +#define __NEED_time_t +#define __NEED_clock_t +#define __NEED_sigset_t + +#include <bits/alltypes.h> + +#define SIG_BLOCK 0 +#define SIG_UNBLOCK 1 +#define SIG_SETMASK 2 + +#define SI_ASYNCNL (-60) +#define SI_TKILL (-6) +#define SI_SIGIO (-5) +#define SI_ASYNCIO (-4) +#define SI_MESGQ (-3) +#define SI_TIMER (-2) +#define SI_QUEUE (-1) +#define SI_USER 0 +#define SI_KERNEL 128 + +typedef struct sigaltstack stack_t; +#endif + +#endif + +#include <bits/signal.h> + +#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \ + || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \ + || defined(_BSD_SOURCE) + +#ifdef __wasilibc_unmodified_upstream /* WASI has no sigaction */ +#define SIG_HOLD ((void (*)(int)) 2) + +#define FPE_INTDIV 1 +#define FPE_INTOVF 2 +#define FPE_FLTDIV 3 +#define FPE_FLTOVF 4 +#define FPE_FLTUND 5 +#define FPE_FLTRES 6 +#define FPE_FLTINV 7 +#define FPE_FLTSUB 8 + +#define ILL_ILLOPC 1 +#define ILL_ILLOPN 2 +#define ILL_ILLADR 3 +#define ILL_ILLTRP 4 +#define ILL_PRVOPC 5 +#define ILL_PRVREG 6 +#define ILL_COPROC 7 +#define ILL_BADSTK 8 + +#define SEGV_MAPERR 1 +#define SEGV_ACCERR 2 +#define SEGV_BNDERR 3 +#define SEGV_PKUERR 4 +#define SEGV_MTEAERR 8 +#define SEGV_MTESERR 9 + +#define BUS_ADRALN 1 +#define BUS_ADRERR 2 +#define BUS_OBJERR 3 +#define BUS_MCEERR_AR 4 +#define BUS_MCEERR_AO 5 + +#define CLD_EXITED 1 +#define CLD_KILLED 2 +#define CLD_DUMPED 3 +#define CLD_TRAPPED 4 +#define CLD_STOPPED 5 +#define CLD_CONTINUED 6 + +union sigval { + int sival_int; + void *sival_ptr; +}; + +typedef struct { +#ifdef __SI_SWAP_ERRNO_CODE + int si_signo, si_code, si_errno; +#else + int si_signo, si_errno, si_code; +#endif + union { + char __pad[128 - 2*sizeof(int) - sizeof(long)]; + struct { + union { + struct { + pid_t si_pid; + uid_t si_uid; + } __piduid; + struct { + int si_timerid; + int si_overrun; + } __timer; + } __first; + union { + union sigval si_value; + struct { + int si_status; + clock_t si_utime, si_stime; + } __sigchld; + } __second; + } __si_common; + struct { + void *si_addr; + short si_addr_lsb; + union { + struct { + void *si_lower; + void *si_upper; + } __addr_bnd; + unsigned si_pkey; + } __first; + } __sigfault; + struct { + long si_band; + int si_fd; + } __sigpoll; + struct { + void *si_call_addr; + int si_syscall; + unsigned si_arch; + } __sigsys; + } __si_fields; +} siginfo_t; +#define si_pid __si_fields.__si_common.__first.__piduid.si_pid +#define si_uid __si_fields.__si_common.__first.__piduid.si_uid +#define si_status __si_fields.__si_common.__second.__sigchld.si_status +#define si_utime __si_fields.__si_common.__second.__sigchld.si_utime +#define si_stime __si_fields.__si_common.__second.__sigchld.si_stime +#define si_value __si_fields.__si_common.__second.si_value +#define si_addr __si_fields.__sigfault.si_addr +#define si_addr_lsb __si_fields.__sigfault.si_addr_lsb +#define si_lower __si_fields.__sigfault.__first.__addr_bnd.si_lower +#define si_upper __si_fields.__sigfault.__first.__addr_bnd.si_upper +#define si_pkey __si_fields.__sigfault.__first.si_pkey +#define si_band __si_fields.__sigpoll.si_band +#define si_fd __si_fields.__sigpoll.si_fd +#define si_timerid __si_fields.__si_common.__first.__timer.si_timerid +#define si_overrun __si_fields.__si_common.__first.__timer.si_overrun +#define si_ptr si_value.sival_ptr +#define si_int si_value.sival_int +#define si_call_addr __si_fields.__sigsys.si_call_addr +#define si_syscall __si_fields.__sigsys.si_syscall +#define si_arch __si_fields.__sigsys.si_arch + +struct sigaction { + union { + void (*sa_handler)(int); + void (*sa_sigaction)(int, siginfo_t *, void *); + } __sa_handler; + sigset_t sa_mask; + int sa_flags; + void (*sa_restorer)(void); +}; +#define sa_handler __sa_handler.sa_handler +#define sa_sigaction __sa_handler.sa_sigaction + +#define SA_UNSUPPORTED 0x00000400 +#define SA_EXPOSE_TAGBITS 0x00000800 + +struct sigevent { + union sigval sigev_value; + int sigev_signo; + int sigev_notify; + union { + char __pad[64 - 2*sizeof(int) - sizeof(union sigval)]; + pid_t sigev_notify_thread_id; + struct { + void (*sigev_notify_function)(union sigval); + pthread_attr_t *sigev_notify_attributes; + } __sev_thread; + } __sev_fields; +}; + +#define sigev_notify_thread_id __sev_fields.sigev_notify_thread_id +#define sigev_notify_function __sev_fields.__sev_thread.sigev_notify_function +#define sigev_notify_attributes __sev_fields.__sev_thread.sigev_notify_attributes + +#define SIGEV_SIGNAL 0 +#define SIGEV_NONE 1 +#define SIGEV_THREAD 2 +#define SIGEV_THREAD_ID 4 +#endif + +#ifdef __wasilibc_unmodified_upstream /* WASI has no realtime signals */ +int __libc_current_sigrtmin(void); +int __libc_current_sigrtmax(void); + +#define SIGRTMIN (__libc_current_sigrtmin()) +#define SIGRTMAX (__libc_current_sigrtmax()) +#endif + +#ifdef __wasilibc_unmodified_upstream /* WASI has no signals */ +int kill(pid_t, int); + +int sigemptyset(sigset_t *); +int sigfillset(sigset_t *); +int sigaddset(sigset_t *, int); +int sigdelset(sigset_t *, int); +int sigismember(const sigset_t *, int); + +int sigprocmask(int, const sigset_t *__restrict, sigset_t *__restrict); +int sigsuspend(const sigset_t *); +int sigaction(int, const struct sigaction *__restrict, struct sigaction *__restrict); +int sigpending(sigset_t *); +int sigwait(const sigset_t *__restrict, int *__restrict); +int sigwaitinfo(const sigset_t *__restrict, siginfo_t *__restrict); +int sigtimedwait(const sigset_t *__restrict, siginfo_t *__restrict, const struct timespec *__restrict); +int sigqueue(pid_t, int, union sigval); +#endif + +#ifdef __wasilibc_unmodified_upstream /* WASI has no threads yet */ +int pthread_sigmask(int, const sigset_t *__restrict, sigset_t *__restrict); +int pthread_kill(pthread_t, int); +#endif + +#ifdef __wasilibc_unmodified_upstream /* WASI has no siginfo */ +void psiginfo(const siginfo_t *, const char *); +#endif +void psignal(int, const char *); + +#endif + +#ifdef __wasilibc_unmodified_upstream /* WASI has no signals */ +#if defined(_XOPEN_SOURCE) || defined(_BSD_SOURCE) || defined(_GNU_SOURCE) +int killpg(pid_t, int); +int sigaltstack(const stack_t *__restrict, stack_t *__restrict); +int sighold(int); +int sigignore(int); +int siginterrupt(int, int); +int sigpause(int); +int sigrelse(int); +void (*sigset(int, void (*)(int)))(int); +#define TRAP_BRKPT 1 +#define TRAP_TRACE 2 +#define TRAP_BRANCH 3 +#define TRAP_HWBKPT 4 +#define TRAP_UNK 5 +#define POLL_IN 1 +#define POLL_OUT 2 +#define POLL_MSG 3 +#define POLL_ERR 4 +#define POLL_PRI 5 +#define POLL_HUP 6 +#define SS_ONSTACK 1 +#define SS_DISABLE 2 +#define SS_AUTODISARM (1U << 31) +#define SS_FLAG_BITS SS_AUTODISARM +#endif +#endif + +#if defined(_BSD_SOURCE) || defined(_GNU_SOURCE) +#define NSIG _NSIG +typedef void (*sig_t)(int); + +#define SYS_SECCOMP 1 +#define SYS_USER_DISPATCH 2 +#endif + +#ifdef _GNU_SOURCE +typedef void (*sighandler_t)(int); +void (*bsd_signal(int, void (*)(int)))(int); +#ifdef __wasilibc_unmodified_upstream /* WASI has no signal sets */ +int sigisemptyset(const sigset_t *); +int sigorset (sigset_t *, const sigset_t *, const sigset_t *); +int sigandset(sigset_t *, const sigset_t *, const sigset_t *); + +#define SA_NOMASK SA_NODEFER +#define SA_ONESHOT SA_RESETHAND +#endif +#endif + +#ifdef __wasilibc_unmodified_upstream /* 1 is a valid function pointer on wasm */ +#define SIG_ERR ((void (*)(int))-1) +#define SIG_DFL ((void (*)(int)) 0) +#define SIG_IGN ((void (*)(int)) 1) +#else +void __SIG_ERR(int); +void __SIG_IGN(int); +#define SIG_ERR (__SIG_ERR) +#define SIG_DFL ((void (*)(int)) 0) +#define SIG_IGN (__SIG_IGN) +#endif + +#ifdef __wasilibc_unmodified_upstream /* Make sig_atomic_t 64-bit on wasm64 */ +typedef int sig_atomic_t; +#else +typedef long sig_atomic_t; +#endif + +void (*signal(int, void (*)(int)))(int); +int raise(int); + +#ifdef __wasilibc_unmodified_upstream /* WASI has no sigtimedwait */ +#if _REDIR_TIME64 +#if defined(_POSIX_SOURCE) || defined(_POSIX_C_SOURCE) \ + || defined(_XOPEN_SOURCE) || defined(_GNU_SOURCE) \ + || defined(_BSD_SOURCE) +__REDIR(sigtimedwait, __sigtimedwait_time64); +#endif +#endif +#endif + +#ifdef __cplusplus +} +#endif + +#endif +#endif |