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Add some optional debug goop.

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This commit is contained in:
fvdl 2003-01-30 02:03:35 +00:00
parent c795d68779
commit be932c1dc6
1 changed files with 35 additions and 1 deletions
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36
sys/arch/x86_64/x86_64/trap.c
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@ -1,4 +1,4 @@
/* $NetBSD: trap.c,v 1.9 2003/01/26 00:05:39 fvdl Exp $ */
/* $NetBSD: trap.c,v 1.10 2003/01/30 02:03:35 fvdl Exp $ */
/*-
* Copyright (c) 1998, 2000 The NetBSD Foundation, Inc.
@ -150,6 +150,10 @@ int trapdebug = 0;
#define IDTVEC(name) __CONCAT(X, name)
#ifdef DEBUG
static void frame_dump(struct trapframe *);
#endif
/*
* trap(frame):
* Exception, fault, and trap interface to BSD kernel. This
@ -305,11 +309,19 @@ copyfault:
case T_NMI|T_USER:
printf("pid %d (%s): BUS at rip %lx addr %lx\n",
p->p_pid, p->p_comm, frame.tf_rip, rcr2());
#ifdef DEBUG
frame_dump(&frame);
#endif
(*p->p_emul->e_trapsignal)(l, SIGBUS, type & ~T_USER);
goto out;
case T_PRIVINFLT|T_USER: /* privileged instruction fault */
case T_FPOPFLT|T_USER: /* coprocessor operand fault */
printf("pid %d (%s): ILL at rip %lx addr %lx\n",
p->p_pid, p->p_comm, frame.tf_rip, rcr2());
#ifdef DEBUG
frame_dump(&frame);
#endif
(*p->p_emul->e_trapsignal)(l, SIGILL, type & ~T_USER);
goto out;
@ -441,6 +453,9 @@ copyfault:
#if 1
printf("pid %d (%s): SEGV at rip %lx addr %lx\n",
p->p_pid, p->p_comm, frame.tf_rip, va);
#ifdef DEBUG
frame_dump(&frame);
#endif
#endif
(*p->p_emul->e_trapsignal)(l, SIGSEGV, T_PAGEFLT);
}
@ -513,3 +528,22 @@ upcallret(struct lwp *l)
{
userret(l);
}
#ifdef DEBUG
static void
frame_dump(struct trapframe *tf)
{
printf("rip %p rsp %p rfl %p\n",
(void *)tf->tf_rip, (void *)tf->tf_rsp, (void *)tf->tf_rflags);
printf("rdi %p rsi %p rdx %p\n",
(void *)tf->tf_rdi, (void *)tf->tf_rsi, (void *)tf->tf_rdx);
printf("rcx %p r8 %p r9 %p\n",
(void *)tf->tf_rcx, (void *)tf->tf_r8, (void *)tf->tf_r9);
printf("r10 %p r11 %p r12 %p\n",
(void *)tf->tf_r10, (void *)tf->tf_r11, (void *)tf->tf_r12);
printf("r13 %p r14 %p r15 %p\n",
(void *)tf->tf_r13, (void *)tf->tf_r14, (void *)tf->tf_r15);
printf("rbp %p rbx %p rax %p\n",
(void *)tf->tf_rbp, (void *)tf->tf_rbx, (void *)tf->tf_rax);
}
#endif