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4fa5559800
is produced when a process exits abnormally.
First, we coalesce the core dumping code so that we greatly improve our
odds of being able to produce a core file, even in the case of a memory
fault. I've removed duplicates of dump_core() and split it in two to
reduce the amount of work needed to actually do the dump.
Second, we refactor the exit_server code path to always log an explanation
and a stack trace. My goal is to always produce enough log information
for us to be able to explain any server exit, though there is a risk
that this could produce too much log information on a flaky network.
Finally, smbcontrol has gained a smbd fault injection operation to test
the changes above. This is only enabled for developer builds.
(This used to be commit 56bc02d644)
216 lines
8.0 KiB
C
216 lines
8.0 KiB
C
/*
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Unix SMB/CIFS implementation.
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SMB debug stuff
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Copyright (C) Andrew Tridgell 1992-1998
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Copyright (C) John H Terpstra 1996-1998
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Copyright (C) Luke Kenneth Casson Leighton 1996-1998
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Copyright (C) Paul Ashton 1998
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifndef _DEBUG_H
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#define _DEBUG_H
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/* -------------------------------------------------------------------------- **
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* Debugging code. See also debug.c
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*/
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/* mkproto.awk has trouble with ifdef'd function definitions (it ignores
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* the #ifdef directive and will read both definitions, thus creating two
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* diffferent prototype declarations), so we must do these by hand.
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*/
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/* I know the __attribute__ stuff is ugly, but it does ensure we get the
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arguments to DEBUG() right. We have got them wrong too often in the
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past.
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The PRINTFLIKE comment does the equivalent for SGI MIPSPro.
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*/
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/* PRINTFLIKE1 */
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int Debug1( const char *, ... ) PRINTF_ATTRIBUTE(1,2);
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/* PRINTFLIKE1 */
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BOOL dbgtext( const char *, ... ) PRINTF_ATTRIBUTE(1,2);
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BOOL dbghdr( int level, const char *file, const char *func, int line );
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#if defined(sgi) && (_COMPILER_VERSION >= 730)
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#pragma mips_frequency_hint NEVER Debug1
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#pragma mips_frequency_hint NEVER dbgtext
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#pragma mips_frequency_hint NEVER dbghdr
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#endif
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extern XFILE *dbf;
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extern pstring debugf;
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/* If we have these macros, we can add additional info to the header. */
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#ifdef HAVE_FUNCTION_MACRO
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#define FUNCTION_MACRO (__FUNCTION__)
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#else
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#define FUNCTION_MACRO ("")
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#endif
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/*
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* Redefine DEBUGLEVEL because so we don't have to change every source file
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* that *unnecessarily* references it. Source files neeed not extern reference
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* DEBUGLEVEL, as it's extern in includes.h (which all source files include).
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* Eventually, all these references should be removed, and all references to
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* DEBUGLEVEL should be references to DEBUGLEVEL_CLASS[DBGC_ALL]. This could
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* still be through a macro still called DEBUGLEVEL. This cannot be done now
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* because some references would expand incorrectly.
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*/
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#define DEBUGLEVEL *debug_level
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extern int DEBUGLEVEL;
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/*
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* Define all new debug classes here. A class is represented by an entry in
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* the DEBUGLEVEL_CLASS array. Index zero of this arrray is equivalent to the
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* old DEBUGLEVEL. Any source file that does NOT add the following lines:
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*
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* #undef DBGC_CLASS
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* #define DBGC_CLASS DBGC_<your class name here>
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*
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* at the start of the file (after #include "includes.h") will default to
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* using index zero, so it will behaive just like it always has.
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*/
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#define DBGC_ALL 0 /* index equivalent to DEBUGLEVEL */
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#define DBGC_TDB 1
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#define DBGC_PRINTDRIVERS 2
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#define DBGC_LANMAN 3
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#define DBGC_SMB 4
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#define DBGC_RPC_PARSE 5
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#define DBGC_RPC_SRV 6
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#define DBGC_RPC_CLI 7
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#define DBGC_PASSDB 8
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#define DBGC_SAM 9
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#define DBGC_AUTH 10
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#define DBGC_WINBIND 11
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#define DBGC_VFS 12
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#define DBGC_IDMAP 13
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#define DBGC_QUOTA 14
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#define DBGC_ACLS 15
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#define DBGC_LOCKING 16
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#define DBGC_MSDFS 17
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#define DBGC_DMAPI 18
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/* So you can define DBGC_CLASS before including debug.h */
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#ifndef DBGC_CLASS
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#define DBGC_CLASS 0 /* override as shown above */
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#endif
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extern int *DEBUGLEVEL_CLASS;
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extern BOOL *DEBUGLEVEL_CLASS_ISSET;
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/* Debugging macros
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*
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* DEBUGLVL()
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* If the 'file specific' debug class level >= level OR the system-wide
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* DEBUGLEVEL (synomym for DEBUGLEVEL_CLASS[ DBGC_ALL ]) >= level then
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* generate a header using the default macros for file, line, and
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* function name. Returns True if the debug level was <= DEBUGLEVEL.
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*
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* Example: if( DEBUGLVL( 2 ) ) dbgtext( "Some text.\n" );
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*
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* DEBUGLVLC()
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* If the 'macro specified' debug class level >= level OR the system-wide
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* DEBUGLEVEL (synomym for DEBUGLEVEL_CLASS[ DBGC_ALL ]) >= level then
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* generate a header using the default macros for file, line, and
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* function name. Returns True if the debug level was <= DEBUGLEVEL.
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*
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* Example: if( DEBUGLVLC( DBGC_TDB, 2 ) ) dbgtext( "Some text.\n" );
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*
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* DEBUG()
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* If the 'file specific' debug class level >= level OR the system-wide
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* DEBUGLEVEL (synomym for DEBUGLEVEL_CLASS[ DBGC_ALL ]) >= level then
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* generate a header using the default macros for file, line, and
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* function name. Each call to DEBUG() generates a new header *unless* the
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* previous debug output was unterminated (i.e. no '\n').
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* See debug.c:dbghdr() for more info.
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*
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* Example: DEBUG( 2, ("Some text and a value %d.\n", value) );
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*
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* DEBUGC()
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* If the 'macro specified' debug class level >= level OR the system-wide
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* DEBUGLEVEL (synomym for DEBUGLEVEL_CLASS[ DBGC_ALL ]) >= level then
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* generate a header using the default macros for file, line, and
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* function name. Each call to DEBUG() generates a new header *unless* the
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* previous debug output was unterminated (i.e. no '\n').
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* See debug.c:dbghdr() for more info.
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*
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* Example: DEBUGC( DBGC_TDB, 2, ("Some text and a value %d.\n", value) );
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*
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* DEBUGADD(), DEBUGADDC()
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* Same as DEBUG() and DEBUGC() except the text is appended to the previous
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* DEBUG(), DEBUGC(), DEBUGADD(), DEBUGADDC() with out another interviening
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* header.
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*
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* Example: DEBUGADD( 2, ("Some text and a value %d.\n", value) );
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* DEBUGADDC( DBGC_TDB, 2, ("Some text and a value %d.\n", value) );
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*
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* Note: If the debug class has not be redeined (see above) then the optimizer
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* will remove the extra conditional test.
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*/
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#define DEBUGLVL( level ) \
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( ((level) <= MAX_DEBUG_LEVEL) && \
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((DEBUGLEVEL_CLASS[ DBGC_CLASS ] >= (level))|| \
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(!DEBUGLEVEL_CLASS_ISSET[ DBGC_CLASS ] && \
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DEBUGLEVEL_CLASS[ DBGC_ALL ] >= (level)) ) \
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&& dbghdr( level, __FILE__, FUNCTION_MACRO, (__LINE__) ) )
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#define DEBUGLVLC( dbgc_class, level ) \
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( ((level) <= MAX_DEBUG_LEVEL) && \
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((DEBUGLEVEL_CLASS[ dbgc_class ] >= (level))|| \
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(!DEBUGLEVEL_CLASS_ISSET[ dbgc_class ] && \
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DEBUGLEVEL_CLASS[ DBGC_ALL ] >= (level)) ) \
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&& dbghdr( level, __FILE__, FUNCTION_MACRO, (__LINE__) ) )
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#define DEBUG( level, body ) \
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(void)( ((level) <= MAX_DEBUG_LEVEL) && \
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((DEBUGLEVEL_CLASS[ DBGC_CLASS ] >= (level))|| \
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(!DEBUGLEVEL_CLASS_ISSET[ DBGC_CLASS ] && \
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DEBUGLEVEL_CLASS[ DBGC_ALL ] >= (level)) ) \
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&& (dbghdr( level, __FILE__, FUNCTION_MACRO, (__LINE__) )) \
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&& (dbgtext body) )
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#define DEBUGC( dbgc_class, level, body ) \
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(void)( ((level) <= MAX_DEBUG_LEVEL) && \
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((DEBUGLEVEL_CLASS[ dbgc_class ] >= (level))|| \
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(!DEBUGLEVEL_CLASS_ISSET[ dbgc_class ] && \
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DEBUGLEVEL_CLASS[ DBGC_ALL ] >= (level)) ) \
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&& (dbghdr( level, __FILE__, FUNCTION_MACRO, (__LINE__) )) \
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&& (dbgtext body) )
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#define DEBUGADD( level, body ) \
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(void)( ((level) <= MAX_DEBUG_LEVEL) && \
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((DEBUGLEVEL_CLASS[ DBGC_CLASS ] >= (level))|| \
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(!DEBUGLEVEL_CLASS_ISSET[ DBGC_CLASS ] && \
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DEBUGLEVEL_CLASS[ DBGC_ALL ] >= (level)) ) \
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&& (dbgtext body) )
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#define DEBUGADDC( dbgc_class, level, body ) \
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(void)( ((level) <= MAX_DEBUG_LEVEL) && \
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((DEBUGLEVEL_CLASS[ dbgc_class ] >= (level))|| \
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(!DEBUGLEVEL_CLASS_ISSET[ dbgc_class ] && \
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DEBUGLEVEL_CLASS[ DBGC_ALL ] >= (level)) ) \
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&& (dbgtext body) )
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/* Print a separator to the debug log. */
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#define DEBUGSEP(level)\
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DEBUG((level),("===============================================================\n"))
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#endif
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