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Add somre debugging support

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git-svn-id: https://outreach.scidac.gov/svn/spl/trunk@31 7e1ea52c-4ff2-0310-8f11-9dd32ca42a1c
This commit is contained in:
behlendo 2008-03-08 00:18:21 +00:00
parent 0b3cf046cb
commit 05ae387b50
5 changed files with 62 additions and 1 deletions
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12
include/sys/cmn_err.h
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@ -1,4 +1,16 @@
#ifndef _SPL_CMN_ERR_H #ifndef _SPL_CMN_ERR_H
#define _SPL_CMN_ERR_H #define _SPL_CMN_ERR_H
#include <sys/varargs.h>
#define CE_CONT 0 /* continuation */
#define CE_NOTE 1 /* notice */
#define CE_WARN 2 /* warning */
#define CE_PANIC 3 /* panic */
#define CE_IGNORE 4 /* print nothing */
extern void cmn_err(int, const char *, ...);
extern void vcmn_err(int, const char *, __va_list);
extern void vpanic(const char *, __va_list);
#endif /* SPL_CMN_ERR_H */ #endif /* SPL_CMN_ERR_H */

3
include/sys/sysmacros.h
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@ -6,6 +6,7 @@ extern "C" {
#endif #endif
#include <linux/module.h> #include <linux/module.h>
#include <sys/varargs.h>
#ifndef _KERNEL #ifndef _KERNEL
#define _KERNEL __KERNEL__ #define _KERNEL __KERNEL__
@ -28,6 +29,7 @@ extern "C" {
#define NBBY 8 #define NBBY 8
#define ENOTSUP ENOTSUPP #define ENOTSUP ENOTSUPP
#define MAXMSGLEN 256
#define MAXNAMELEN 256 #define MAXNAMELEN 256
#define MAXPATHLEN PATH_MAX #define MAXPATHLEN PATH_MAX
#define MAXOFFSET_T 0x7fffffffffffffffl #define MAXOFFSET_T 0x7fffffffffffffffl
@ -36,7 +38,6 @@ extern "C" {
#define DEV_BSIZE 512 #define DEV_BSIZE 512
#define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */ #define DEV_BSHIFT 9 /* log2(DEV_BSIZE) */
#define __va_list va_list
#define max_ncpus 64 #define max_ncpus 64
#define _NOTE(x) #define _NOTE(x)

2
include/sys/varargs.h
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@ -1,4 +1,6 @@
#ifndef _SPL_VARARGS_H #ifndef _SPL_VARARGS_H
#define _SPL_VARARGS_H #define _SPL_VARARGS_H
#define __va_list va_list
#endif /* SPL_VARARGS_H */ #endif /* SPL_VARARGS_H */

1
modules/spl/Makefile.in
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@ -14,6 +14,7 @@ spl-objs += spl-thread.o
spl-objs += spl-taskq.o spl-objs += spl-taskq.o
spl-objs += spl-rwlock.o spl-objs += spl-rwlock.o
spl-objs += spl-vnode.o spl-objs += spl-vnode.o
spl-objs += spl-err.o
spl-objs += spl-generic.o spl-objs += spl-generic.o
splmodule := spl.ko splmodule := spl.ko

45
modules/spl/spl-err.c Normal file
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@ -0,0 +1,45 @@
#include <sys/sysmacros.h>
#include <sys/cmn_err.h>
#include "config.h"
static char ce_prefix[CE_IGNORE][10] = { "", "NOTICE: ", "WARNING: ", "" };
static char ce_suffix[CE_IGNORE][2] = { "", "\n", "\n", "" };
void
vpanic(const char *fmt, va_list ap)
{
char msg[MAXMSGLEN];
vsnprintf(msg, MAXMSGLEN - 1, fmt, ap);
panic(msg);
} /* vpanic() */
EXPORT_SYMBOL(vpanic);
void
cmn_err(int ce, const char *fmt, ...)
{
char msg[MAXMSGLEN];
va_list ap;
va_start(ap, fmt);
vsnprintf(msg, MAXMSGLEN - 1, fmt, ap);
va_end(ap);
printk("%s", msg);
} /* cmn_err() */
EXPORT_SYMBOL(cmn_err);
void
vcmn_err(int ce, const char *fmt, va_list ap)
{
char msg[MAXMSGLEN];
if (ce == CE_PANIC)
vpanic(fmt, ap);
if (ce != CE_NOTE) { /* suppress noise in stress testing */
vsnprintf(msg, MAXMSGLEN - 1, fmt, ap);
printk("%s%s%s", ce_prefix[ce], msg, ce_suffix[ce]);
}
} /* vcmn_err() */
EXPORT_SYMBOL(vcmn_err);