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Code Issues Releases Activity

- There's no need to wrap kdb_active and kdb_trap() in #ifdef KDB as

Browse Source 
they're always available.
- Remove unused variable. [1]
- Add a missing const.
- Sort includes.

Submitted by:	Christoph Mallon [1]
This commit is contained in:
Marius Strobl 2009-03-19 20:46:51 +00:00
parent 2fecceb04d
commit 707085fef9
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=190107
4 changed files with 9 additions and 29 deletions
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2
sys/sparc64/include/trap.h
View File

@ -91,7 +91,7 @@
#ifndef LOCORE
void sun4u_set_traptable(void *tba_addr);
extern const char *trap_msg[];
extern const char *const trap_msg[];
#endif
#endif

18
sys/sparc64/sparc64/trap.c
View File

@ -71,7 +71,6 @@ __FBSDID("$FreeBSD$");
#include <security/audit/audit.h>
#include <dev/ofw/openfirm.h>
#include <machine/ofw_machdep.h>
#include <vm/vm.h>
#include <vm/pmap.h>
@ -84,7 +83,7 @@ __FBSDID("$FreeBSD$");
#include <machine/cpu.h>
#include <machine/frame.h>
#include <machine/intr_machdep.h>
#include <machine/pcb.h>
#include <machine/ofw_machdep.h>
#include <machine/smp.h>
#include <machine/trap.h>
#include <machine/tstate.h>
@ -114,7 +113,7 @@ extern char fas_nofault_end[];
extern char *syscallnames[];
const char *trap_msg[] = {
const char *const trap_msg[] = {
"reserved",
"instruction access exception",
"instruction access error",
@ -329,15 +328,12 @@ trap(struct trapframe *tf)
KASSERT((tf->tf_type & T_KERNEL) != 0,
("trap: kernel trap isn't"));
#ifdef KDB
if (kdb_active) {
kdb_reenter();
return;
}
#endif
switch (tf->tf_type & ~T_KERNEL) {
#ifdef KDB
case T_BREAKPOINT:
case T_KSTACK_FAULT:
error = (kdb_trap(tf->tf_type, 0, tf) == 0);
@ -348,7 +344,6 @@ trap(struct trapframe *tf)
case T_VA_WATCHPOINT:
error = db_watch_trap(tf);
break;
#endif
#endif
case T_DATA_MISS:
case T_DATA_PROTECTION:
@ -409,7 +404,6 @@ static int
trap_pfault(struct thread *td, struct trapframe *tf)
{
struct vmspace *vm;
struct pcb *pcb;
struct proc *p;
vm_offset_t va;
vm_prot_t prot;
@ -429,7 +423,6 @@ trap_pfault(struct thread *td, struct trapframe *tf)
rv = KERN_SUCCESS;
ctx = TLB_TAR_CTX(tf->tf_tar);
pcb = td->td_pcb;
type = tf->tf_type & ~T_KERNEL;
va = TLB_TAR_VA(tf->tf_tar);
@ -559,11 +552,6 @@ syscall(struct trapframe *tf)
PCPU_INC(cnt.v_syscall);
narg = 0;
error = 0;
reg = 0;
regcnt = REG_MAXARGS;
td->td_pticks = 0;
td->td_frame = tf;
if (td->td_ucred != p->p_ucred)
@ -577,6 +565,8 @@ syscall(struct trapframe *tf)
tpc = tf->tf_tpc;
TF_DONE(tf);
reg = 0;
regcnt = REG_MAXARGS;
if (p->p_sysent->sv_prepsyscall) {
/*
* The prep code is MP aware.

2
sys/sun4v/include/trap.h
View File

@ -144,7 +144,7 @@
#ifndef LOCORE
extern const char *trap_msg[];
extern const char *const trap_msg[];
extern void set_mmfsa_traptable(void *, uint64_t);
extern void trap_init(void);
#endif

16
sys/sun4v/sun4v/trap.c
View File

@ -81,7 +81,6 @@
#include <machine/cpu.h>
#include <machine/frame.h>
#include <machine/intr_machdep.h>
#include <machine/pcb.h>
#include <machine/smp.h>
#include <machine/trap.h>
#include <machine/tstate.h>
@ -119,7 +118,7 @@ extern char fas_nofault_end[];
extern char *syscallnames[];
const char *trap_msg[] = {
const char *const trap_msg[] = {
"reserved",
"instruction access exception",
"instruction access error",
@ -390,21 +389,17 @@ trap(struct trapframe *tf, int64_t type, uint64_t data)
("trap: kernel trap isn't - trap: %ld:%s: 0x%lx at 0x%lx on cpu=%d\n",
trapno, trap_msg[trapno], data, tf->tf_tpc, curcpu));
#ifdef KDB
if (kdb_active) {
kdb_reenter();
return;
}
#endif
switch (trapno) {
#ifdef KDB
case T_BREAKPOINT:
case T_KSTACK_FAULT:
error = (kdb_trap(trapno, 0, tf) == 0);
TF_DONE(tf);
break;
#endif
case T_DATA_MISS:
case T_DATA_PROTECTION:
case T_INSTRUCTION_MISS:
@ -460,7 +455,6 @@ static int
trap_pfault(struct thread *td, struct trapframe *tf, int64_t type, uint64_t data)
{
struct vmspace *vm;
struct pcb *pcb;
struct proc *p;
vm_offset_t va;
vm_prot_t prot;
@ -475,7 +469,6 @@ trap_pfault(struct thread *td, struct trapframe *tf, int64_t type, uint64_t data
rv = KERN_SUCCESS;
ctx = TLB_TAR_CTX(data);
pcb = td->td_pcb;
type = type & ~T_KERNEL;
va = TLB_TAR_VA(data);
@ -603,11 +596,6 @@ syscall(struct trapframe *tf)
PCPU_INC(cnt.v_syscall);
narg = 0;
error = 0;
reg = 0;
regcnt = REG_MAXARGS;
td->td_pticks = 0;
td->td_frame = tf;
if (td->td_ucred != p->p_ucred)
@ -621,6 +609,8 @@ syscall(struct trapframe *tf)
tpc = tf->tf_tpc;
TF_DONE(tf);
reg = 0;
regcnt = REG_MAXARGS;
if (p->p_sysent->sv_prepsyscall) {
/*
* The prep code is MP aware.