35a108b911
this change
- makes panic() variadic, doing full printf() formatting -
no more NO_NUM, and no more separate printf() statements
needed to print extra info (or something in hex) before panicing
- unifies panic() - same panic() name and usage for everyone -
vm, kernel and rest have different names/syntax currently
in order to implement their own luxuries, but no longer
- throws out the 1st argument, to make source less noisy.
the panic() in syslib retrieves the server name from the kernel
so it should be clear enough who is panicing; e.g.
panic("sigaction failed: %d", errno);
looks like:
at_wini(73130): panic: sigaction failed: 0
syslib:panic.c: stacktrace: 0x74dc 0x2025 0x100a
- throws out report() - printf() is more convenient and powerful
- harmonizes/fixes the use of panic() - there were a few places
that used printf-style formatting (didn't work) and newlines
(messes up the formatting) in panic()
- throws out a few per-server panic() functions
- cleans up a tie-in of tty with panic()
merging printf() and panic() statements to be done incrementally.
65 lines
1.6 KiB
C
65 lines
1.6 KiB
C
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#define _SYSTEM 1
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#include <minix/callnr.h>
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#include <minix/com.h>
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#include <minix/config.h>
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#include <minix/const.h>
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#include <minix/ds.h>
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#include <minix/endpoint.h>
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#include <minix/keymap.h>
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#include <minix/minlib.h>
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#include <minix/type.h>
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#include <minix/ipc.h>
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#include <minix/sysutil.h>
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#include <minix/syslib.h>
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#include <minix/bitmap.h>
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#include <sys/sigcontext.h>
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#include <errno.h>
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#include <env.h>
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#include "glo.h"
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#include "vm.h"
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#include "proto.h"
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#include "util.h"
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#define DATA_CHANGED 1 /* flag value when data segment size changed */
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#define STACK_CHANGED 2 /* flag value when stack size changed */
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/*===========================================================================*
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* do_push_sig *
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*===========================================================================*/
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PUBLIC int do_push_sig(message *msg)
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{
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int r, n;
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endpoint_t ep;
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vir_bytes sp;
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struct vmproc *vmp;
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ep = msg->VMPS_ENDPOINT;
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if((r=vm_isokendpt(ep, &n)) != OK) {
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printf("VM: bogus endpoint %d from %d\n", ep, msg->m_source);
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return r;
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}
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vmp = &vmproc[n];
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if ((r=get_stack_ptr(ep, &sp)) != OK)
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panic("couldn't get new stack pointer (for sig): %d", r);
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/* Save old SP for caller */
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msg->VMPS_OLD_SP = (char *) sp;
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/* Make room for the sigcontext and sigframe struct. */
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sp -= sizeof(struct sigcontext)
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+ 3 * sizeof(char *) + 2 * sizeof(int);
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if ((r=adjust(vmp, vmp->vm_arch.vm_seg[D].mem_len, sp)) != OK) {
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printf("VM: do_push_sig: adjust() failed: %d\n", r);
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return r;
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}
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return OK;
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}
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