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WL#3432 (Compile the Parser with a --debug --verbose option)

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Changed the automake build process :
- ./configure.in
- ./sql/Makefile.am
to compile an instrumented parser for debug=yes or debug=full builds

Changed the (primary) runtime invocation of the parser :
- sql/sql_parse.cc
to generate bison traces in stderr when the DBUG "parser_debug" flag is set.


configure.in:
  WL#3432 (Compile the Parser with a --debug --verbose option)
  
  New Automake condition : MYSQL_CONF_DEBUG
sql/Makefile.am:
  WL#3432 (Compile the Parser with a --debug --verbose option)
  
  In Debug mode, compile sql_yacc.yy with --debug --verbose
sql/sql_parse.cc:
  WL#3432 (Compile the Parser with a --debug --verbose option)
  
  Conditionally turn the bison parser debug on at runtime.
This commit is contained in:
unknown 2006-08-17 16:08:51 -07:00
parent b747f9732b
commit dec9116f4e
3 changed files with 30 additions and 1 deletions
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1
configure.in
View File

@ -1667,6 +1667,7 @@ else
CFLAGS="$OPTIMIZE_CFLAGS -DDBUG_OFF $CFLAGS"
CXXFLAGS="$OPTIMIZE_CXXFLAGS -DDBUG_OFF $CXXFLAGS"
fi
AM_CONDITIONAL(MYSQL_CONF_DEBUG, test "x$with_debug" != "xno")
# Force static compilation to avoid linking problems/get more speed
AC_ARG_WITH(mysqld-ldflags,

7
sql/Makefile.am
View File

@ -117,9 +117,14 @@ DEFS = -DMYSQL_SERVER \
BUILT_SOURCES = sql_yacc.cc sql_yacc.h lex_hash.h
EXTRA_DIST = $(BUILT_SOURCES)
DISTCLEANFILES = lex_hash.h
DISTCLEANFILES = lex_hash.h sql_yacc.output
AM_YFLAGS = -d
if MYSQL_CONF_DEBUG
AM_YFLAGS += --debug --verbose
endif
mysql_tzinfo_to_sql.cc:
rm -f mysql_tzinfo_to_sql.cc
@LN_CP_F@ $(srcdir)/tztime.cc mysql_tzinfo_to_sql.cc

23
sql/sql_parse.cc
View File

@ -5776,6 +5776,26 @@ void mysql_init_multi_delete(LEX *lex)
lex->query_tables_last= &lex->query_tables;
}
#ifndef DBUG_OFF
static void turn_parser_debug_on()
{
/*
MYSQLdebug is in sql/sql_yacc.cc, in bison generated code.
Turning this option on is **VERY** verbose, and should be
used when investigating a syntax error problem only.
The syntax to run with bison traces is as follows :
- Starting a server manually :
mysqld --debug="d,parser_debug" ...
- Running a test :
mysql-test-run.pl --mysqld="--debug=d,parser_debug" ...
The result will be in the process stderr (var/log/master.err)
*/
extern int MYSQLdebug;
MYSQLdebug= 1;
}
#endif
/*
When you modify mysql_parse(), you may need to mofify
@ -5785,6 +5805,9 @@ void mysql_init_multi_delete(LEX *lex)
void mysql_parse(THD *thd, char *inBuf, uint length)
{
DBUG_ENTER("mysql_parse");
DBUG_EXECUTE_IF("parser_debug", turn_parser_debug_on(););
mysql_init_query(thd, (uchar*) inBuf, length);
if (query_cache_send_result_to_client(thd, inBuf, length) <= 0)
{