123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218 |
- #include <lib.h>
- #include <minix/com.h>
- /*----------------------------------------------------------------------------
- Messages to systask (special calls)
- ----------------------------------------------------------------------------*/
- #if (CHIP == M68000)
- PUBLIC _PROTOTYPE( void sys_xit, (int parent, int proc,
- phys_clicks *basep, phys_clicks *sizep));
- #else
- PUBLIC _PROTOTYPE( void sys_xit, (int parent, int proc));
- #endif
- PUBLIC _PROTOTYPE( void sys_getsp, (int proc, vir_bytes *newsp));
- PUBLIC _PROTOTYPE( void sys_sig, (int proc, int sig, void (*sighandler)(int)));
- #if (CHIP == M68000)
- #ifdef ALCYON_C_BUG_FIXED
- PUBLIC _PROTOTYPE( void sys_fork, (int prnt, int chld, int pd, phys_clicks shdw));
- #else
- PUBLIC _PROTOTYPE( void sys_fork, (int parent, int child, int pid, int shadow));
- #endif
- #else
- PUBLIC _PROTOTYPE( void sys_fork, (int parent, int child, int pid));
- #endif
- PUBLIC _PROTOTYPE( void sys_exec, (int proc, char *ptr, int traced));
- PUBLIC _PROTOTYPE( void sys_newmap, (int proc, char *ptr));
- PUBLIC _PROTOTYPE( void sys_copy, (message *mptr));
- PUBLIC _PROTOTYPE( void sys_times, (int proc, time_t ptr[4]));
- PUBLIC _PROTOTYPE( void sys_abort, (void));
- #if (CHIP == M68000)
- PUBLIC _PROTOTYPE( void sys_fresh, (int proc, char *ptr, phys_clicks dc,
- phys_clicks *basep, phys_clicks *sizep));
- #endif
- PUBLIC _PROTOTYPE( void sys_kill, (int proc, int sig));
- PUBLIC _PROTOTYPE( int sys_trace, (int req, int procnr,
- long addr, long *data_p));
- PUBLIC _PROTOTYPE( void tell_fs, ( int what, int p1, int p2, int p3));
- #if (CHIP == M68000)
- PUBLIC void sys_xit(parent, proc, basep, sizep)
- phys_clicks *basep, *sizep;
- #else
- PUBLIC void sys_xit(parent, proc)
- #endif
- int parent; /* parent of exiting proc. */
- int proc; /* which proc has exited */
- {
- /* A proc has exited. Tell the kernel. */
- _callm1(SYSTASK, SYS_XIT, parent, proc, 0, NIL_PTR, NIL_PTR, NIL_PTR);
- #if (CHIP == M68000)
- *basep = (phys_clicks) _M.m1_i1;
- *sizep = (phys_clicks) _M.m1_i2;
- #endif
- }
- PUBLIC void sys_getsp(proc, newsp)
- int proc; /* which proc has enabled signals */
- vir_bytes *newsp; /* place to put sp read from kernel */
- {
- /* Ask the kernel what the sp is. */
- _callm1(SYSTASK, SYS_GETSP, proc, 0, 0, NIL_PTR, NIL_PTR, NIL_PTR);
- *newsp = (vir_bytes) _M.STACK_PTR;
- }
- PUBLIC void sys_sig(proc, sig, sighandler)
- int proc; /* which proc has exited */
- int sig; /* signal number: 1 - 16 */
- _PROTOTYPE(void (*sighandler), (int));/* pointer to signal handler in user space */
- {
- /* A proc has to be signaled. Tell the kernel. */
- _M.m6_i1 = proc;
- _M.m6_i2 = sig;
- _M.m6_f1 = sighandler;
- _callx(SYSTASK, SYS_SIG);
- }
- #if (CHIP == M68000)
- PUBLIC void sys_fork(parent, child, pid, shadow)
- #ifdef ALCYON_C_BUG_FIXED
- phys_clicks shadow; /* memory allocated for shadow */
- #else
- int shadow;
- #endif
- #else
- PUBLIC void sys_fork(parent, child, pid)
- #endif
- int parent; /* proc doing the fork */
- int child; /* which proc has been created by the fork */
- int pid; /* process id assigned by MM */
- {
- /* A proc has forked. Tell the kernel. */
- #if (CHIP == M68000)
- _callm1(SYSTASK, SYS_FORK, parent, child, pid, (char *) shadow, NIL_PTR, NIL_PTR);
- #else
- _callm1(SYSTASK, SYS_FORK, parent, child, pid, NIL_PTR, NIL_PTR, NIL_PTR);
- #endif
- }
- PUBLIC void sys_exec(proc, ptr, traced)
- int proc; /* proc that did exec */
- char *ptr; /* new stack pointer */
- int traced; /* is tracing enabled? */
- {
- /* A proc has exec'd. Tell the kernel. */
- _callm1(SYSTASK, SYS_EXEC, proc, traced, 0, ptr, NIL_PTR, NIL_PTR);
- }
- PUBLIC void sys_newmap(proc, ptr)
- int proc; /* proc whose map is to be changed */
- char *ptr; /* pointer to new map */
- {
- /* A proc has been assigned a new memory map. Tell the kernel. */
- _callm1(SYSTASK, SYS_NEWMAP, proc, 0, 0, ptr, NIL_PTR, NIL_PTR);
- }
- PUBLIC void sys_copy(mptr)
- message *mptr; /* pointer to message */
- {
- /* A proc wants to use local copy. */
- /* Make this routine better. Also check other guys' error handling
- * -DEBUG */
- mptr->m_type = SYS_COPY;
- if (_sendrec(SYSTASK, mptr) != 0) panic("sys_copy can't send", NO_NUM);
- }
- PUBLIC void sys_times(proc, ptr)
- int proc; /* proc whose times are needed */
- time_t ptr[4]; /* pointer to time buffer */
- {
- /* Fetch the accounting info for a proc. */
- _callm1(SYSTASK, SYS_TIMES, proc, 0, 0, (char *)ptr, NIL_PTR, NIL_PTR);
- ptr[0] = _M.USER_TIME;
- ptr[1] = _M.SYSTEM_TIME;
- ptr[2] = _M.CHILD_UTIME;
- ptr[3] = _M.CHILD_STIME;
- }
- PUBLIC void sys_abort()
- {
- /* Something awful has happened. Abandon ship. */
- _callm1(SYSTASK, SYS_ABORT, 0, 0, 0, NIL_PTR, NIL_PTR, NIL_PTR);
- }
- #if (CHIP == M68000)
- PUBLIC void sys_fresh(proc, ptr, dc, basep, sizep)
- int proc; /* proc whose map is to be changed */
- char *ptr; /* pointer to new map */
- phys_clicks dc; /* size of initialized data */
- phys_clicks *basep, *sizep; /* base and size for free_mem() */
- {
- /* Create a fresh process image for exec(). Tell the kernel. */
- _callm1(SYSTASK, SYS_FRESH, proc, (int) dc, 0, ptr, NIL_PTR, NIL_PTR);
- *basep = (phys_clicks) _M.m1_i1;
- *sizep = (phys_clicks) _M.m1_i2;
- }
- #endif
- PUBLIC void sys_kill(proc, sig)
- int proc; /* which proc has exited */
- int sig; /* signal number: 1 - 16 */
- {
- /* A proc has to be signaled via MM. Tell the kernel. */
- _M.m6_i1 = proc;
- _M.m6_i2 = sig;
- _callx(SYSTASK, SYS_KILL);
- }
- PUBLIC int sys_trace(req, procnr, addr, data_p)
- int req, procnr;
- long addr, *data_p;
- {
- int r;
- _M.m2_i1 = procnr;
- _M.m2_i2 = req;
- _M.m2_l1 = addr;
- if (data_p) _M.m2_l2 = *data_p;
- r = _callx(SYSTASK, SYS_TRACE);
- if (data_p) *data_p = _M.m2_l2;
- return(r);
- }
- PUBLIC void tell_fs(what, p1, p2, p3)
- int what, p1, p2, p3;
- {
- /* This routine is only used by MM to inform FS of certain events:
- * tell_fs(CHDIR, slot, dir, 0)
- * tell_fs(EXEC, proc, 0, 0)
- * tell_fs(EXIT, proc, 0, 0)
- * tell_fs(FORK, parent, child, pid)
- * tell_fs(SETGID, proc, realgid, effgid)
- * tell_fs(SETUID, proc, realuid, effuid)
- * tell_fs(SYNC, 0, 0, 0)
- * tell_fs(UNPAUSE, proc, signr, 0)
- * tell_fs(SETPGRP, proc, 0, 0)
- */
- _callm1(FS, what, p1, p2, p3, NIL_PTR, NIL_PTR, NIL_PTR);
- }
|