6f77685609
mainly in the kernel and headers. This split based on work by Ingmar Alting <iaalting@cs.vu.nl> done for his Minix PowerPC architecture port. . kernel does not program the interrupt controller directly, do any other architecture-dependent operations, or contain assembly any more, but uses architecture-dependent functions in arch/$(ARCH)/. . architecture-dependent constants and types defined in arch/$(ARCH)/include. . <ibm/portio.h> moved to <minix/portio.h>, as they have become, for now, architecture-independent functions. . int86, sdevio, readbios, and iopenable are now i386-specific kernel calls and live in arch/i386/do_* now. . i386 arch now supports even less 86 code; e.g. mpx86.s and klib86.s have gone, and 'machine.protected' is gone (and always taken to be 1 in i386). If 86 support is to return, it should be a new architecture. . prototypes for the architecture-dependent functions defined in kernel/arch/$(ARCH)/*.c but used in kernel/ are in kernel/proto.h . /etc/make.conf included in makefiles and shell scripts that need to know the building architecture; it defines ARCH=<arch>, currently only i386. . some basic per-architecture build support outside of the kernel (lib) . in clock.c, only dequeue a process if it was ready . fixes for new include files files deleted: . mpx/klib.s - only for choosing between mpx/klib86 and -386 . klib86.s - only for 86 i386-specific files files moved (or arch-dependent stuff moved) to arch/i386/: . mpx386.s (entry point) . klib386.s . sconst.h . exception.c . protect.c . protect.h . i8269.c
67 lines
1.9 KiB
C
Executable File
67 lines
1.9 KiB
C
Executable File
/* This file contains a collection of miscellaneous procedures:
|
|
* panic: abort MINIX due to a fatal error
|
|
* kprintf: (from lib/sysutil/kprintf.c)
|
|
* kputc: buffered putc used by kernel kprintf
|
|
*/
|
|
|
|
#include "kernel.h"
|
|
#include "proc.h"
|
|
|
|
#include <unistd.h>
|
|
#include <signal.h>
|
|
|
|
/*===========================================================================*
|
|
* panic *
|
|
*===========================================================================*/
|
|
PUBLIC void panic(mess,nr)
|
|
_CONST char *mess;
|
|
int nr;
|
|
{
|
|
/* The system has run aground of a fatal kernel error. Terminate execution. */
|
|
static int panicking = 0;
|
|
if (panicking ++) return; /* prevent recursive panics */
|
|
|
|
if (mess != NULL) {
|
|
kprintf("\nKernel panic: %s", mess);
|
|
if (nr != NO_NUM) kprintf(" %d", nr);
|
|
kprintf("\n",NO_NUM);
|
|
}
|
|
|
|
/* Abort MINIX. */
|
|
prepare_shutdown(RBT_PANIC);
|
|
}
|
|
|
|
|
|
/* Include system printf() implementation named kprintf() */
|
|
|
|
#define printf kprintf
|
|
#include "../lib/sysutil/kprintf.c"
|
|
#define END_OF_KMESS 0
|
|
|
|
/*===========================================================================*
|
|
* kputc *
|
|
*===========================================================================*/
|
|
PUBLIC void kputc(c)
|
|
int c; /* character to append */
|
|
{
|
|
/* Accumulate a single character for a kernel message. Send a notification
|
|
* to the output driver if an END_OF_KMESS is encountered.
|
|
*/
|
|
if (c != END_OF_KMESS) {
|
|
if (do_serial_debug)
|
|
ser_putc(c);
|
|
kmess.km_buf[kmess.km_next] = c; /* put normal char in buffer */
|
|
if (kmess.km_size < KMESS_BUF_SIZE)
|
|
kmess.km_size += 1;
|
|
kmess.km_next = (kmess.km_next + 1) % KMESS_BUF_SIZE;
|
|
} else {
|
|
int p, outprocs[] = OUTPUT_PROCS_ARRAY;
|
|
for(p = 0; outprocs[p] != NONE; p++) {
|
|
if(isokprocn(outprocs[p]) && !isemptyn(outprocs[p])) {
|
|
send_sig(outprocs[p], SIGKMESS);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|