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/*
* Copyright (c) 1994 The University of Utah and
* the Computer Systems Laboratory at the University of Utah (CSL).
* All rights reserved.
*
* Permission to use, copy, modify and distribute this software is hereby
* granted provided that (1) source code retains these copyright, permission,
* and disclaimer notices, and (2) redistributions including binaries
* reproduce the notices in supporting documentation, and (3) all advertising
* materials mentioning features or use of this software display the following
* acknowledgement: ``This product includes software developed by the
* Computer Systems Laboratory at the University of Utah.''
*
* THE UNIVERSITY OF UTAH AND CSL ALLOW FREE USE OF THIS SOFTWARE IN ITS "AS
* IS" CONDITION. THE UNIVERSITY OF UTAH AND CSL DISCLAIM ANY LIABILITY OF
* ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* CSL requests users of this software to return to csl-dist@cs.utah.edu any
* improvements that they make and grant CSL redistribution rights.
*
* Author: Bryan Ford, University of Utah CSL
*/
#include <kern/printf.h>
#include "thread.h"
#include "trap.h"
#include "debug.h"
void dump_ss(const struct i386_saved_state *st)
{
printf("Dump of i386_saved_state %p:\n", st);
printf("EAX %08lx EBX %08lx ECX %08lx EDX %08lx\n",
st->eax, st->ebx, st->ecx, st->edx);
printf("ESI %08lx EDI %08lx EBP %08lx ESP %08lx\n",
st->esi, st->edi, st->ebp, st->uesp);
printf("CS %04lx SS %04lx "
"DS %04lx ES %04lx "
"FS %04lx GS %04lx\n",
st->cs & 0xffff, st->ss & 0xffff,
st->ds & 0xffff, st->es & 0xffff,
st->fs & 0xffff, st->gs & 0xffff);
printf("v86: DS %04lx ES %04lx FS %04lx GS %04lx\n",
st->v86_segs.v86_ds & 0xffff, st->v86_segs.v86_es & 0xffff,
st->v86_segs.v86_gs & 0xffff, st->v86_segs.v86_gs & 0xffff);
printf("EIP %08lx EFLAGS %08lx\n", st->eip, st->efl);
printf("trapno %ld: %s, error %08lx\n",
st->trapno, trap_name(st->trapno),
st->err);
}
#ifdef DEBUG
struct debug_trace_entry
{
char *filename;
int linenum;
};
struct debug_trace_entry debug_trace_buf[DEBUG_TRACE_LEN];
int debug_trace_pos;
void
debug_trace_reset(void)
{
int s = splhigh();
debug_trace_pos = 0;
debug_trace_buf[DEBUG_TRACE_LEN-1].filename = 0;
splx(s);
}
static void
print_entry(int i, int *col)
{
char *fn, *p;
/* Strip off the path from the filename. */
fn = debug_trace_buf[i].filename;
for (p = fn; *p; p++)
if (*p == '/')
fn = p+1;
printf(" %9s:%-4d", fn, debug_trace_buf[i].linenum);
if (++*col == 5)
{
printf("\n");
*col = 0;
}
}
void
debug_trace_dump(void)
{
int s = splhigh();
int i;
int col = 0;
printf("Debug trace dump ");
/* If the last entry is nonzero,
the trace probably wrapped around.
Print out all the entries after the current position
before all the entries before it,
so we get a total of DEBUG_TRACE_LEN entries
in correct time order. */
if (debug_trace_buf[DEBUG_TRACE_LEN-1].filename != 0)
{
printf("(full):\n");
for (i = debug_trace_pos; i < DEBUG_TRACE_LEN; i++)
{
print_entry(i, &col);
}
}
else
printf("(%d entries):\n", debug_trace_pos);
/* Print the entries before the current position. */
for (i = 0; i < debug_trace_pos; i++)
{
print_entry(i, &col);
}
if (col != 0)
printf("\n");
debug_trace_reset();
splx(s);
}
#include <kern/syscall_sw.h>
int syscall_trace = 0;
int
syscall_trace_print(int syscallvec, ...)
{
int syscallnum = syscallvec >> 4;
int i;
printf("syscall -%d:", syscallnum);
for (i = 0; i < mach_trap_table[syscallnum].mach_trap_arg_count; i++)
printf(" %08x", (&syscallvec)[1+i]);
printf("\n");
return syscallvec;
}
#endif /* DEBUG */
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