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Fix traceback through interrupts. This isn't complete but at least it's

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displaying useful output again:

db{0}> bt
cpu_Debugger(c1aa4800,c1aa8b1c,c1aa803c,1,c1aa48ec) at netbsd:cpu_Debugger+0x4
comintr(c1aa4800,cf38fc04,0,0,0) at netbsd:comintr+0x65c
DDB lost frame for netbsd:Xintr_ioapic_edge4+0xa8, trying 0xcf413ff4
Xintr_ioapic_edge4() at netbsd:Xintr_ioapic_edge4+0xa8
--- interrupt ---
--- switch to interrupt stack ---
cpu_idle(cf421e00,cf421e00,0,c0264950,cf421e00) at netbsd:cpu_idle+0x30
idle_loop(cf421e00,0,c01002d2,fbff,c01002d2) at netbsd:idle_loop+0x7a
This commit is contained in:
ad 2007-08-05 19:27:45 +00:00
parent 2e1a7ade3c
commit c8a5b7d261
1 changed files with 9 additions and 4 deletions
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13
sys/arch/i386/i386/db_trace.c
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@ -1,4 +1,4 @@
/* $NetBSD: db_trace.c,v 1.56 2007/03/07 21:43:43 thorpej Exp $ */
/* $NetBSD: db_trace.c,v 1.57 2007/08/05 19:27:45 ad Exp $ */
/*
* Mach Operating System
@ -27,7 +27,7 @@
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: db_trace.c,v 1.56 2007/03/07 21:43:43 thorpej Exp $");
__KERNEL_RCSID(0, "$NetBSD: db_trace.c,v 1.57 2007/08/05 19:27:45 ad Exp $");
#include <sys/param.h>
#include <sys/systm.h>
@ -316,7 +316,12 @@ db_nextframe(
break;
case INTERRUPT:
(*pr)("--- interrupt ---\n");
tf = (struct trapframe *)argp;
/*
* Get intrframe address as saved when switching
* to interrupt stack, and convert to trapframe
* (add 4). See frame.h.
*/
tf = (struct trapframe *)(*(argp - 1) + 4);
break;
}
*ip = (db_addr_t)tf->tf_eip;
@ -385,7 +390,7 @@ db_stack_trace_print(db_expr_t addr, bool have_addr, db_expr_t count,
int *retaddr, *arg0;
int *argp;
db_addr_t callpc;
int is_trap;
int is_trap = NONE;
bool kernel_only = true;
bool trace_thread = false;
bool lwpaddr = false;