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4b2220f0b9
Until now the notion of an internal debug logging infrastructure
was conflated with enabling ASSERT()s. This patch clarifies things
by cleanly breaking the two subsystem apart. The result of this
is the following behavior.
--enable-debug - Enable/disable code wrapped in ASSERT()s.
--disable-debug ASSERT()s are used to check invariants and
are never required for correct operation.
They are disabled by default because they
may impact performance.
--enable-debug-log - Enable/disable the debug log infrastructure.
--disable-debug-log This infrastructure allows the spl code and
its consumer to log messages to an in-kernel
log. The granularity of the logging can be
controlled by a debug mask. By default the
mask disables most debug messages resulting
in a negligible performance impact. Because
of this the debug log is enabled by default.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
83 lines
2.3 KiB
C
83 lines
2.3 KiB
C
/*****************************************************************************\
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* Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
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* Copyright (C) 2007 The Regents of the University of California.
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* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
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* Written by Brian Behlendorf <behlendorf1@llnl.gov>.
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* UCRL-CODE-235197
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*
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* This file is part of the SPL, Solaris Porting Layer.
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* For details, see <http://github.com/behlendorf/spl/>.
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*
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* The SPL is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; either version 2 of the License, or (at your
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* option) any later version.
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*
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* The SPL is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with the SPL. If not, see <http://www.gnu.org/licenses/>.
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*****************************************************************************
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* Solaris Porting Layer (SPL) Error Implementation.
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\*****************************************************************************/
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#include <sys/sysmacros.h>
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#include <sys/cmn_err.h>
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#include <spl-debug.h>
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#ifdef SS_DEBUG_SUBSYS
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#undef SS_DEBUG_SUBSYS
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#endif
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#define SS_DEBUG_SUBSYS SS_GENERIC
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#ifdef DEBUG_LOG
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static char ce_prefix[CE_IGNORE][10] = { "", "NOTICE: ", "WARNING: ", "" };
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static char ce_suffix[CE_IGNORE][2] = { "", "\n", "\n", "" };
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#endif
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void
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vpanic(const char *fmt, va_list ap)
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{
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char msg[MAXMSGLEN];
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vsnprintf(msg, MAXMSGLEN - 1, fmt, ap);
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PANIC("%s", msg);
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} /* vpanic() */
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EXPORT_SYMBOL(vpanic);
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void
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vcmn_err(int ce, const char *fmt, va_list ap)
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{
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char msg[MAXMSGLEN];
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if (ce == CE_PANIC)
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vpanic(fmt, ap);
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if (ce != CE_NOTE) {
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vsnprintf(msg, MAXMSGLEN - 1, fmt, ap);
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if (fmt[0] == '!')
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SDEBUG(SD_INFO, "%s%s%s",
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ce_prefix[ce], msg, ce_suffix[ce]);
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else
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SERROR("%s%s%s", ce_prefix[ce], msg, ce_suffix[ce]);
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}
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} /* vcmn_err() */
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EXPORT_SYMBOL(vcmn_err);
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void
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cmn_err(int ce, const char *fmt, ...)
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{
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va_list ap;
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va_start(ap, fmt);
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vcmn_err(ce, fmt, ap);
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va_end(ap);
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} /* cmn_err() */
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EXPORT_SYMBOL(cmn_err);
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