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:
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* panic: abort MINIX due to a fatal error
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* kprintf: (from lib/sysutil/kprintf.c)
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* kputc: buffered putc used by kernel kprintf
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*/
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#include "kernel.h"
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#include "proc.h"
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#include <unistd.h>
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#include <signal.h>
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/*===========================================================================*
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* panic *
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*===========================================================================*/
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PUBLIC void panic(mess,nr)
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_CONST char *mess;
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int nr;
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{
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/* The system has run aground of a fatal kernel error. Terminate execution. */
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static int panicking = 0;
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if (panicking ++) return; /* prevent recursive panics */
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if (mess != NULL) {
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kprintf("\nKernel panic: %s", mess);
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if (nr != NO_NUM) kprintf(" %d", nr);
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kprintf("\n",NO_NUM);
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}
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/* Abort MINIX. */
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prepare_shutdown(RBT_PANIC);
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}
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/* Include system printf() implementation named kprintf() */
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#define printf kprintf
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#include "../lib/sysutil/kprintf.c"
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#define END_OF_KMESS 0
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/*===========================================================================*
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* kputc *
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*===========================================================================*/
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PUBLIC void kputc(c)
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int c; /* character to append */
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{
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/* Accumulate a single character for a kernel message. Send a notification
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* to the output driver if an END_OF_KMESS is encountered.
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*/
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if (c != END_OF_KMESS) {
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if (do_serial_debug)
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ser_putc(c);
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kmess.km_buf[kmess.km_next] = c; /* put normal char in buffer */
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if (kmess.km_size < KMESS_BUF_SIZE)
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kmess.km_size += 1;
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kmess.km_next = (kmess.km_next + 1) % KMESS_BUF_SIZE;
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} else {
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int p, outprocs[] = OUTPUT_PROCS_ARRAY;
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for(p = 0; outprocs[p] != NONE; p++) {
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if(isokprocn(outprocs[p]) && !isemptyn(outprocs[p])) {
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send_sig(outprocs[p], SIGKMESS);
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}
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}
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}
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}
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