Commit 2f472dff authored by Narayanan V's avatar Narayanan V
Browse files

WL#4380

added a rule that use gcc to generate preprocessor output (gcc -E)
that can be then compared to a already generated output using 
the diff utility.

Ran make test on the repository to verify changes.
parent 11ad668b
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+57 −0
Original line number Diff line number Diff line
@@ -231,5 +231,62 @@ test-full-qa:
	    test-binlog-statement test-ext test-fast-view \
	        test-fast-cursor test-unit

#
# Headers which need to be checked for abi/api compatibility
#

PREPROCESSOR_C_HEADER=$(top_srcdir)/include/mysql/plugin.h \
					$(top_srcdir)/sql/mysql_priv.h \
					$(top_srcdir)/include/mysql.h

#
# Rule for checking that the abi/api has not changed.
#
# The following steps are followed in the rule below
#
# 1) Generate preprocessor output for the files that need to
#    be tested for abi/api changes. use -nostdinc to prevent 
#    generation of preprocessor output for system headers. This 
#    results in messages in stderr saying that these headers 
#    were not found. Redirect the stderr output to /dev/null 
#    to prevent seeing these messages.
# 2) sed the output to remove blank lines and lines that begin
#    with # (The header information is retained to enable easy
#    analysis of abi diffs at a later stage).
# 3) diff the generated file and the canons (.pp files already in
#    the repository).
# 4) delete the .out file that is generated.
#
# If the diff fails, the generated file is not removed. This will
# be useful for analysis of ABI differences (e.g. using a visual
# diff tool).
#
# A ABI change that causes a build to fail will always be accompanied
# by new canons (.out files). The .out files that are not removed will
# be replaced as the new .pp files.
#
# e.g. If include/mysql/plugin.h has an ABI change then this rule would
# leave a include/mysql/plugin.out file.
#
# A developer with a justified API change will then do a
# mv include/mysql/plugin.out include/mysql/plugin.pp 
# to replace the old canons with the new ones.
#

abi_check:	$(PREPROCESSOR_C_HEADER)
	 set -ex; \
	 for file in $(PREPROCESSOR_C_HEADER); do \
	         @CC@ -E -nostdinc -dI \
	                  -I$(top_srcdir)/include \
	                  -I$(top_srcdir)/include/mysql \
	                  -I$(top_srcdir)/sql \
	                                 $$file 2>/dev/null | \
	                  @SED@ -e '/^# /d' \
	                            -e '/^[ 	]*$$/d' > $$file.out; \
	                  @DIFF@ $$file.pp $$file.out; \
	                  @RM@ $$file.out; \
	 done
	 touch $@

# Don't update the files from bitkeeper
%::SCCS/s.%
+1 −20
Original line number Diff line number Diff line
@@ -419,6 +419,7 @@ AC_PATH_PROG(SED, sed, sed)
AC_PATH_PROG(CMP, cmp, cmp)
AC_PATH_PROG(CHMOD, chmod, chmod)
AC_PATH_PROG(HOSTNAME, hostname, hostname)
AC_PATH_PROG(DIFF, diff, diff)
# Check for a GNU tar named 'gtar', or 'gnutar' (MacOS X) and
# fall back to 'tar' otherwise and hope that it's a GNU tar as well
AC_CHECK_PROGS(TAR, gnutar gtar tar)
@@ -443,26 +444,6 @@ AC_SUBST(HOSTNAME)
AC_SUBST(PERL)
AC_SUBST(PERL5)

# icheck, used for ABI check
AC_PATH_PROG(ICHECK, icheck, no)
# "icheck" is also the name of a file system check program on Tru64.
# Verify the program found is really the interface checker.
if test "x$ICHECK" != "xno"
then
  AC_MSG_CHECKING(if $ICHECK works as expected)
  echo "int foo;" > conftest.h
  $ICHECK --canonify -o conftest.ic conftest.h 2>/dev/null
  if test -f "conftest.ic"
  then
    AC_MSG_RESULT(yes)
  else
    AC_MSG_RESULT(no)
    ICHECK=no
  fi
  rm -f conftest.ic conftest.h
fi
AC_SUBST(ICHECK)

# Lock for PS
AC_PATH_PROG(PS, ps, ps)
AC_MSG_CHECKING("how to check if pid exists")

include/mysql.h.pp

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struct st_mysql_lex_string
{
  char *str;
  unsigned int length;
};
typedef struct st_mysql_lex_string MYSQL_LEX_STRING;
struct st_mysql_xid {
  long formatID;
  long gtrid_length;
  long bqual_length;
  char data[128];
};
typedef struct st_mysql_xid MYSQL_XID;
enum enum_mysql_show_type
{
  SHOW_UNDEF, SHOW_BOOL, SHOW_INT, SHOW_LONG,
  SHOW_LONGLONG, SHOW_CHAR, SHOW_CHAR_PTR,
  SHOW_ARRAY, SHOW_FUNC, SHOW_DOUBLE
};
struct st_mysql_show_var {
  const char *name;
  char *value;
  enum enum_mysql_show_type type;
};
typedef int (*mysql_show_var_func)(void*, struct st_mysql_show_var*, char *);
struct st_mysql_sys_var;
struct st_mysql_value;
typedef int (*mysql_var_check_func)(void* thd,
                                    struct st_mysql_sys_var *var,
                                    void *save, struct st_mysql_value *value);
typedef void (*mysql_var_update_func)(void* thd,
                                      struct st_mysql_sys_var *var,
                                      void *var_ptr, const void *save);
struct st_mysql_plugin
{
  int type;
  void *info;
  const char *name;
  const char *author;
  const char *descr;
  int license;
  int (*init)(void *);
  int (*deinit)(void *);
  unsigned int version;
  struct st_mysql_show_var *status_vars;
  struct st_mysql_sys_var **system_vars;
  void * __reserved1;
};
enum enum_ftparser_mode
{
  MYSQL_FTPARSER_SIMPLE_MODE= 0,
  MYSQL_FTPARSER_WITH_STOPWORDS= 1,
  MYSQL_FTPARSER_FULL_BOOLEAN_INFO= 2
};
enum enum_ft_token_type
{
  FT_TOKEN_EOF= 0,
  FT_TOKEN_WORD= 1,
  FT_TOKEN_LEFT_PAREN= 2,
  FT_TOKEN_RIGHT_PAREN= 3,
  FT_TOKEN_STOPWORD= 4
};
typedef struct st_mysql_ftparser_boolean_info
{
  enum enum_ft_token_type type;
  int yesno;
  int weight_adjust;
  char wasign;
  char trunc;
  char prev;
  char *quot;
} MYSQL_FTPARSER_BOOLEAN_INFO;
typedef struct st_mysql_ftparser_param
{
  int (*mysql_parse)(struct st_mysql_ftparser_param *,
                     char *doc, int doc_len);
  int (*mysql_add_word)(struct st_mysql_ftparser_param *,
                        char *word, int word_len,
                        MYSQL_FTPARSER_BOOLEAN_INFO *boolean_info);
  void *ftparser_state;
  void *mysql_ftparam;
  struct charset_info_st *cs;
  char *doc;
  int length;
  int flags;
  enum enum_ftparser_mode mode;
} MYSQL_FTPARSER_PARAM;
struct st_mysql_ftparser
{
  int interface_version;
  int (*parse)(MYSQL_FTPARSER_PARAM *param);
  int (*init)(MYSQL_FTPARSER_PARAM *param);
  int (*deinit)(MYSQL_FTPARSER_PARAM *param);
};
struct st_mysql_storage_engine
{
  int interface_version;
};
struct handlerton;
struct st_mysql_daemon
{
  int interface_version;
};
struct st_mysql_information_schema
{
  int interface_version;
};
struct st_mysql_value
{
  int (*value_type)(struct st_mysql_value *);
  const char *(*val_str)(struct st_mysql_value *, char *buffer, int *length);
  int (*val_real)(struct st_mysql_value *, double *realbuf);
  int (*val_int)(struct st_mysql_value *, long long *intbuf);
};
int thd_in_lock_tables(const void* thd);
int thd_tablespace_op(const void* thd);
long long thd_test_options(const void* thd, long long test_options);
int thd_sql_command(const void* thd);
const char *thd_proc_info(void* thd, const char *info);
void **thd_ha_data(const void* thd, const struct handlerton *hton);
int thd_tx_isolation(const void* thd);
char *thd_security_context(void* thd, char *buffer, unsigned int length,
                           unsigned int max_query_len);
void thd_inc_row_count(void* thd);
int mysql_tmpfile(const char *prefix);
int thd_killed(const void* thd);
unsigned long thd_get_thread_id(const void* thd);
void *thd_alloc(void* thd, unsigned int size);
void *thd_calloc(void* thd, unsigned int size);
char *thd_strdup(void* thd, const char *str);
char *thd_strmake(void* thd, const char *str, unsigned int size);
void *thd_memdup(void* thd, const void* str, unsigned int size);
MYSQL_LEX_STRING *thd_make_lex_string(void* thd, MYSQL_LEX_STRING *lex_str,
                                      const char *str, unsigned int size,
                                      int allocate_lex_string);
void thd_get_xid(const void* thd, MYSQL_XID *xid);
void mysql_query_cache_invalidate4(void* thd,
                                   const char *key, unsigned int key_length,
                                   int using_trx);

include/mysql_h.ic

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