0b8e20c89e
- The primary reason is that mkfs and installboot need to run natively during the cross compilation (host and target versions are compiled). There is a collision of include files though. E.g. a.out.h is very minix-specific. Therefore some files we moved and replaced by stubs that include the original file if compiling on or for Minix : include/a.out.h -> include/minix/a.out.h include/sys/dir.h -> include/minix/dir.h include/dirent.h -> include/minix/dirent.h include/sys/types.h -> include/minix/types.h - This does not break any native compilation on Minix. Other headers that were including the original files are changed according to include directly the new, minix specific location not to pick up the host system includes while cross-compiling. - role of this patch is to make rebasing of the build branch simpler until the new build system is merged
141 lines
5.5 KiB
C
Executable file
141 lines
5.5 KiB
C
Executable file
/* The <signal.h> header defines all the ANSI and POSIX signals.
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* MINIX supports all the signals required by POSIX. They are defined below.
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* Some additional signals are also supported.
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*/
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#ifndef _SIGNAL_H
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#define _SIGNAL_H
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#ifndef _ANSI_H
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#include <ansi.h>
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#endif
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#ifdef _POSIX_SOURCE
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#ifndef _TYPES_H
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#include <minix/types.h>
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#endif
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#endif
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/* Here are types that are closely associated with signal handling. */
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typedef int sig_atomic_t;
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#ifdef _POSIX_SOURCE
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#ifndef _SIGSET_T
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#define _SIGSET_T
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typedef unsigned long sigset_t;
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#endif
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#endif
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/* Regular signals. */
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#define SIGHUP 1 /* hangup */
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#define SIGINT 2 /* interrupt (DEL) */
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#define SIGQUIT 3 /* quit (ASCII FS) */
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#define SIGILL 4 /* illegal instruction */
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#define SIGTRAP 5 /* trace trap (not reset when caught) */
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#define SIGABRT 6 /* IOT instruction */
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#define SIGBUS 7 /* bus error */
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#define SIGFPE 8 /* floating point exception */
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#define SIGKILL 9 /* kill (cannot be caught or ignored) */
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#define SIGUSR1 10 /* user defined signal # 1 */
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#define SIGSEGV 11 /* segmentation violation */
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#define SIGUSR2 12 /* user defined signal # 2 */
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#define SIGPIPE 13 /* write on a pipe with no one to read it */
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#define SIGALRM 14 /* alarm clock */
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#define SIGTERM 15 /* software termination signal from kill */
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#define SIGEMT 16 /* EMT instruction */
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#define SIGCHLD 17 /* child process terminated or stopped */
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#define SIGWINCH 21 /* window size has changed */
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#define SIGVTALRM 24 /* virtual alarm */
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#define SIGPROF 25 /* profiler alarm */
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/* POSIX requires the following signals to be defined, even if they are
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* not supported. Here are the definitions, but they are not supported.
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*/
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#define SIGCONT 18 /* continue if stopped */
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#define SIGSTOP 19 /* stop signal */
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#define SIGTSTP 20 /* interactive stop signal */
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#define SIGTTIN 22 /* background process wants to read */
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#define SIGTTOU 23 /* background process wants to write */
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#define _NSIG 26 /* highest signal number plus one */
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#ifdef _MINIX
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#define SIGIOT SIGABRT /* for people who speak PDP-11 */
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/* MINIX specific signals. These signals are not used by user proceses,
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* but meant to inform system processes, like the PM, about system events.
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*/
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#define SIGKMESS 29 /* new kernel message */
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#define SIGKSIG 30 /* kernel signal pending */
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#define SIGNDELAY 31 /* end of delay for signal delivery */
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#endif
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/* The sighandler_t type is not allowed unless _POSIX_SOURCE is defined. */
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typedef void _PROTOTYPE( (*__sighandler_t), (int) );
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/* Macros used as function pointers. */
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#define SIG_ERR ((__sighandler_t) -1) /* error return */
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#define SIG_DFL ((__sighandler_t) 0) /* default signal handling */
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#define SIG_IGN ((__sighandler_t) 1) /* ignore signal */
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#define SIG_HOLD ((__sighandler_t) 2) /* block signal */
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#define SIG_CATCH ((__sighandler_t) 3) /* catch signal */
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#define SIG_MESS ((__sighandler_t) 4) /* pass as message (MINIX) */
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#ifdef _POSIX_SOURCE
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struct sigaction {
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__sighandler_t sa_handler; /* SIG_DFL, SIG_IGN, or pointer to function */
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sigset_t sa_mask; /* signals to be blocked during handler */
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int sa_flags; /* special flags */
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};
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/* Fields for sa_flags. */
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#define SA_ONSTACK 0x0001 /* deliver signal on alternate stack */
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#define SA_RESETHAND 0x0002 /* reset signal handler when signal caught */
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#define SA_NODEFER 0x0004 /* don't block signal while catching it */
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#define SA_RESTART 0x0008 /* automatic system call restart */
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#define SA_SIGINFO 0x0010 /* extended signal handling */
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#define SA_NOCLDWAIT 0x0020 /* don't create zombies */
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#define SA_NOCLDSTOP 0x0040 /* don't receive SIGCHLD when child stops */
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/* POSIX requires these values for use with sigprocmask(2). */
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#define SIG_BLOCK 0 /* for blocking signals */
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#define SIG_UNBLOCK 1 /* for unblocking signals */
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#define SIG_SETMASK 2 /* for setting the signal mask */
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#define SIG_INQUIRE 4 /* for internal use only */
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#endif /* _POSIX_SOURCE */
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/* POSIX and ANSI function prototypes. */
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_PROTOTYPE( int raise, (int _sig) );
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_PROTOTYPE( __sighandler_t signal, (int _sig, __sighandler_t _func) );
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#ifdef _POSIX_SOURCE
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_PROTOTYPE( int kill, (pid_t _pid, int _sig) );
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_PROTOTYPE( int killpg, (pid_t _pgrp, int _sig) );
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_PROTOTYPE( int sigaction,
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(int _sig, const struct sigaction *_act, struct sigaction *_oact) );
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_PROTOTYPE( int sigpending, (sigset_t *_set) );
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_PROTOTYPE( int sigprocmask,
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(int _how, const sigset_t *_set, sigset_t *_oset) );
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_PROTOTYPE( int sigsuspend, (const sigset_t *_sigmask) );
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/* For the sigset functions, only use the library version with error
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* checking from user programs. System programs need to be able to use
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* nonstanard signals.
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*/
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#ifndef _SYSTEM
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_PROTOTYPE( int sigaddset, (sigset_t *_set, int _sig) );
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_PROTOTYPE( int sigdelset, (sigset_t *_set, int _sig) );
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_PROTOTYPE( int sigemptyset, (sigset_t *_set) );
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_PROTOTYPE( int sigfillset, (sigset_t *_set) );
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_PROTOTYPE( int sigismember, (const sigset_t *_set, int _sig) );
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#else
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#define sigaddset(set, sig) ((int) ((*(set) |= (1 << (sig))) && 0))
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#define sigdelset(set, sig) ((int) ((*(set) &= ~(1 << (sig))) && 0))
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#define sigemptyset(set) ((int) (*(set) = 0))
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#define sigfillset(set) ((int) ((*(set) = ~0) && 0))
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#define sigismember(set, sig) ((*(set) & (1 << (sig))) ? 1 : 0)
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#endif
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#endif
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#endif /* _SIGNAL_H */
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