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A little better support for 'trace' command.

This commit is contained in:
ragge 1999-01-01 21:25:03 +00:00
parent 872b1a1f2a
commit 1678119a36
1 changed files with 51 additions and 6 deletions
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57
sys/arch/vax/vax/db_machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: db_machdep.c,v 1.13 1998/08/20 16:47:11 ragge Exp $ */
/* $NetBSD: db_machdep.c,v 1.14 1999/01/01 21:25:03 ragge Exp $ */
/*
* Mach Operating System
@ -64,6 +64,8 @@ void kdbprinttrap __P((int, int));
int db_active = 0;
extern int qdpolling;
static int splsave; /* IPL before entering debugger */
/*
* DDB is called by either <ESC> - D on keyboard, via a TRACE or
* BPT trap or from kernel, normally as a result of a panic.
@ -92,8 +94,9 @@ kdb_trap(frame)
ddb_regs.pc = pf->ca_pc;
ddb_regs.ap = pf->ca_ap;
ddb_regs.sp = (unsigned)pf;
ddb_regs.psl = frame->psl & ~0xffe0;
ddb_regs.psl = pf->ca_maskpsw & 0xffe0;
ddb_regs.psl = frame->psl & ~0x1fffe0;
ddb_regs.psl |= pf->ca_maskpsw & 0xffe0;
ddb_regs.psl |= (splsave << 16);
}
break;
@ -175,9 +178,9 @@ db_write_bytes(addr, size, data)
void
Debugger()
{
int s = splx(0xe);
splsave = splx(0xe);
mtpr(0xf, PR_SIRR); /* beg for debugger */
splx(s);
splx(splsave);
}
/*
@ -211,7 +214,49 @@ db_stack_trace_cmd(addr, have_addr, count, modif)
db_expr_t count;
char *modif;
{
printf("db_stack_trace_cmd - addr %lx, have_addr %x, count %lx, modif %x\n",addr, have_addr, count, (int)modif);
extern vaddr_t proc0paddr, istack;
struct proc *p = curproc;
db_expr_t diff;
db_sym_t sym;
vaddr_t paddr;
u_int *cf, *tcf, abase, loop, i, stackbase;
char *symname;
if (panicstr) {
cf = (int *)ddb_regs.sp;
} else {
printf("Don't know what to do without panic\n");
cf = (int *)ddb_regs.fp; /* XXX */
}
if (p)
paddr = (u_int)p->p_addr;
else
paddr = proc0paddr;
stackbase = (ddb_regs.psl & PSL_IS ? istack : paddr);
while ((cf[3] > stackbase) && (cf[3] < (stackbase + USPACE))) {
diff = INT_MAX;
symname = NULL;
abase = 0;
sym = db_search_symbol(cf[4], DB_STGY_ANY, &diff);
db_symbol_values(sym, &symname, 0);
db_printf("%s+0x%lx(", symname, diff);
/* Pass all saved regs */
tcf = (int *)cf[3];
loop = (tcf[1] >> 16) & 0xfff;
while (loop) {
if (loop & 1)
abase++;
loop >>= 1;
}
if (tcf[5+abase]) {
for (i = 0; i < (tcf[5+abase] - 1); i++)
db_printf("0x%x,", tcf[6+abase+i]);
db_printf("0x%x)\n", tcf[6+abase+i]);
} else
db_printf("void)\n");
cf = (u_int *)cf[3];
}
}
static int ddbescape = 0;