219 lines
6 KiB
C
219 lines
6 KiB
C
#include <lib.h>
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#include <minix/com.h>
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/*----------------------------------------------------------------------------
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Messages to systask (special calls)
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----------------------------------------------------------------------------*/
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#if (CHIP == M68000)
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PUBLIC _PROTOTYPE( void sys_xit, (int parent, int proc,
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phys_clicks *basep, phys_clicks *sizep));
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#else
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PUBLIC _PROTOTYPE( void sys_xit, (int parent, int proc));
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#endif
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PUBLIC _PROTOTYPE( void sys_getsp, (int proc, vir_bytes *newsp));
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PUBLIC _PROTOTYPE( void sys_sig, (int proc, int sig, void (*sighandler)(int)));
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#if (CHIP == M68000)
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#ifdef ALCYON_C_BUG_FIXED
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PUBLIC _PROTOTYPE( void sys_fork, (int prnt, int chld, int pd, phys_clicks shdw));
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#else
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PUBLIC _PROTOTYPE( void sys_fork, (int parent, int child, int pid, int shadow));
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#endif
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#else
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PUBLIC _PROTOTYPE( void sys_fork, (int parent, int child, int pid));
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#endif
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PUBLIC _PROTOTYPE( void sys_exec, (int proc, char *ptr, int traced));
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PUBLIC _PROTOTYPE( void sys_newmap, (int proc, char *ptr));
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PUBLIC _PROTOTYPE( void sys_copy, (message *mptr));
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PUBLIC _PROTOTYPE( void sys_times, (int proc, time_t ptr[4]));
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PUBLIC _PROTOTYPE( void sys_abort, (void));
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#if (CHIP == M68000)
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PUBLIC _PROTOTYPE( void sys_fresh, (int proc, char *ptr, phys_clicks dc,
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phys_clicks *basep, phys_clicks *sizep));
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#endif
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PUBLIC _PROTOTYPE( void sys_kill, (int proc, int sig));
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PUBLIC _PROTOTYPE( int sys_trace, (int req, int procnr,
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long addr, long *data_p));
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PUBLIC _PROTOTYPE( void tell_fs, ( int what, int p1, int p2, int p3));
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#if (CHIP == M68000)
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PUBLIC void sys_xit(parent, proc, basep, sizep)
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phys_clicks *basep, *sizep;
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#else
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PUBLIC void sys_xit(parent, proc)
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#endif
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int parent; /* parent of exiting proc. */
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int proc; /* which proc has exited */
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{
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/* A proc has exited. Tell the kernel. */
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_callm1(SYSTASK, SYS_XIT, parent, proc, 0, NIL_PTR, NIL_PTR, NIL_PTR);
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#if (CHIP == M68000)
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*basep = (phys_clicks) _M.m1_i1;
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*sizep = (phys_clicks) _M.m1_i2;
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#endif
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}
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PUBLIC void sys_getsp(proc, newsp)
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int proc; /* which proc has enabled signals */
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vir_bytes *newsp; /* place to put sp read from kernel */
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{
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/* Ask the kernel what the sp is. */
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_callm1(SYSTASK, SYS_GETSP, proc, 0, 0, NIL_PTR, NIL_PTR, NIL_PTR);
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*newsp = (vir_bytes) _M.STACK_PTR;
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}
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PUBLIC void sys_sig(proc, sig, sighandler)
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int proc; /* which proc has exited */
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int sig; /* signal number: 1 - 16 */
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_PROTOTYPE(void (*sighandler), (int));/* pointer to signal handler in user space */
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{
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/* A proc has to be signaled. Tell the kernel. */
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_M.m6_i1 = proc;
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_M.m6_i2 = sig;
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_M.m6_f1 = sighandler;
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_callx(SYSTASK, SYS_SIG);
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}
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#if (CHIP == M68000)
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PUBLIC void sys_fork(parent, child, pid, shadow)
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#ifdef ALCYON_C_BUG_FIXED
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phys_clicks shadow; /* memory allocated for shadow */
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#else
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int shadow;
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#endif
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#else
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PUBLIC void sys_fork(parent, child, pid)
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#endif
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int parent; /* proc doing the fork */
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int child; /* which proc has been created by the fork */
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int pid; /* process id assigned by MM */
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{
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/* A proc has forked. Tell the kernel. */
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#if (CHIP == M68000)
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_callm1(SYSTASK, SYS_FORK, parent, child, pid, (char *) shadow, NIL_PTR, NIL_PTR);
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#else
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_callm1(SYSTASK, SYS_FORK, parent, child, pid, NIL_PTR, NIL_PTR, NIL_PTR);
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#endif
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}
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PUBLIC void sys_exec(proc, ptr, traced)
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int proc; /* proc that did exec */
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char *ptr; /* new stack pointer */
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int traced; /* is tracing enabled? */
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{
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/* A proc has exec'd. Tell the kernel. */
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_callm1(SYSTASK, SYS_EXEC, proc, traced, 0, ptr, NIL_PTR, NIL_PTR);
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}
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PUBLIC void sys_newmap(proc, ptr)
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int proc; /* proc whose map is to be changed */
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char *ptr; /* pointer to new map */
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{
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/* A proc has been assigned a new memory map. Tell the kernel. */
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_callm1(SYSTASK, SYS_NEWMAP, proc, 0, 0, ptr, NIL_PTR, NIL_PTR);
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}
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PUBLIC void sys_copy(mptr)
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message *mptr; /* pointer to message */
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{
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/* A proc wants to use local copy. */
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/* Make this routine better. Also check other guys' error handling
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* -DEBUG */
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mptr->m_type = SYS_COPY;
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if (_sendrec(SYSTASK, mptr) != 0) panic("sys_copy can't send", NO_NUM);
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}
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PUBLIC void sys_times(proc, ptr)
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int proc; /* proc whose times are needed */
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time_t ptr[4]; /* pointer to time buffer */
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{
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/* Fetch the accounting info for a proc. */
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_callm1(SYSTASK, SYS_TIMES, proc, 0, 0, (char *)ptr, NIL_PTR, NIL_PTR);
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ptr[0] = _M.USER_TIME;
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ptr[1] = _M.SYSTEM_TIME;
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ptr[2] = _M.CHILD_UTIME;
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ptr[3] = _M.CHILD_STIME;
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}
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PUBLIC void sys_abort()
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{
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/* Something awful has happened. Abandon ship. */
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_callm1(SYSTASK, SYS_ABORT, 0, 0, 0, NIL_PTR, NIL_PTR, NIL_PTR);
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}
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#if (CHIP == M68000)
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PUBLIC void sys_fresh(proc, ptr, dc, basep, sizep)
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int proc; /* proc whose map is to be changed */
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char *ptr; /* pointer to new map */
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phys_clicks dc; /* size of initialized data */
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phys_clicks *basep, *sizep; /* base and size for free_mem() */
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{
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/* Create a fresh process image for exec(). Tell the kernel. */
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_callm1(SYSTASK, SYS_FRESH, proc, (int) dc, 0, ptr, NIL_PTR, NIL_PTR);
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*basep = (phys_clicks) _M.m1_i1;
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*sizep = (phys_clicks) _M.m1_i2;
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}
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#endif
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PUBLIC void sys_kill(proc, sig)
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int proc; /* which proc has exited */
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int sig; /* signal number: 1 - 16 */
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{
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/* A proc has to be signaled via MM. Tell the kernel. */
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_M.m6_i1 = proc;
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_M.m6_i2 = sig;
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_callx(SYSTASK, SYS_KILL);
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}
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PUBLIC int sys_trace(req, procnr, addr, data_p)
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int req, procnr;
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long addr, *data_p;
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{
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int r;
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_M.m2_i1 = procnr;
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_M.m2_i2 = req;
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_M.m2_l1 = addr;
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if (data_p) _M.m2_l2 = *data_p;
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r = _callx(SYSTASK, SYS_TRACE);
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if (data_p) *data_p = _M.m2_l2;
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return(r);
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}
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PUBLIC void tell_fs(what, p1, p2, p3)
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int what, p1, p2, p3;
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{
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/* This routine is only used by MM to inform FS of certain events:
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* tell_fs(CHDIR, slot, dir, 0)
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* tell_fs(EXEC, proc, 0, 0)
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* tell_fs(EXIT, proc, 0, 0)
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* tell_fs(FORK, parent, child, pid)
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* tell_fs(SETGID, proc, realgid, effgid)
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* tell_fs(SETUID, proc, realuid, effuid)
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* tell_fs(SYNC, 0, 0, 0)
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* tell_fs(UNPAUSE, proc, signr, 0)
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* tell_fs(SETPGRP, proc, 0, 0)
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*/
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_callm1(FS, what, p1, p2, p3, NIL_PTR, NIL_PTR, NIL_PTR);
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}
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