mirror of https://github.com/postgres/postgres
Always use our own versions of *printf().
We've spent an awful lot of effort over the years in coping with platform-specific vagaries of the *printf family of functions. Let's just forget all that mess and standardize on always using src/port/snprintf.c. This gets rid of a lot of configure logic, and it will allow a saner approach to dealing with %m (though actually changing that is left for a follow-on patch). Preliminary performance testing suggests that as it stands, snprintf.c is faster than the native printf functions for some tasks on some platforms, and slower for other cases. A pending patch will improve that, though cases with floating-point conversions will doubtless remain slower unless we want to put a *lot* of effort into that. Still, we've not observed that *printf is really a performance bottleneck for most workloads, so I doubt this matters much. Patch by me, reviewed by Michael Paquier Discussion: https://postgr.es/m/2975.1526862605@sss.pgh.pa.us
This commit is contained in:
Tom Lane
parent
758ce9b779
commit
96bf88d527
|
|
@ -20,15 +20,8 @@ fi])# PGAC_C_SIGNED
|
|||
# PGAC_C_PRINTF_ARCHETYPE
|
||||
# -----------------------
|
||||
# Select the format archetype to be used by gcc to check printf-type functions.
|
||||
# We prefer "gnu_printf", which matches the features glibc supports, notably
|
||||
# %m, 'z' and 'll' width modifiers ('ll' only matters if int64 requires it),
|
||||
# and argument order control if we're doing --enable-nls. On platforms where
|
||||
# the native printf doesn't have 'z'/'ll' or arg control, we replace it with
|
||||
# src/port/snprintf.c which does, so that the only potential mismatch here is
|
||||
# whether or not %m is supported. We need that for elog/ereport, so we live
|
||||
# with the fact that erroneous use of %m in plain printf calls won't be
|
||||
# detected. (It appears that many versions of gcc/clang wouldn't report it
|
||||
# even if told to check according to plain printf archetype, anyway.)
|
||||
# We prefer "gnu_printf", as that most closely matches the features supported
|
||||
# by src/port/snprintf.c (particularly the %m conversion spec).
|
||||
AC_DEFUN([PGAC_PRINTF_ARCHETYPE],
|
||||
[AC_CACHE_CHECK([for printf format archetype], pgac_cv_printf_archetype,
|
||||
[ac_save_c_werror_flag=$ac_c_werror_flag
|
||||
|
|
|
|||
|
|
@ -171,106 +171,6 @@ AC_DEFUN([PGAC_STRUCT_ADDRINFO],
|
|||
])])# PGAC_STRUCT_ADDRINFO
|
||||
|
||||
|
||||
# PGAC_FUNC_SNPRINTF_ARG_CONTROL
|
||||
# ---------------------------------------
|
||||
# Determine if snprintf supports %1$ argument selection, e.g. %5$ selects
|
||||
# the fifth argument after the printf format string.
|
||||
# This is not in the C99 standard, but in the Single Unix Specification (SUS).
|
||||
# It is used in our language translation strings.
|
||||
#
|
||||
AC_DEFUN([PGAC_FUNC_SNPRINTF_ARG_CONTROL],
|
||||
[AC_MSG_CHECKING([whether snprintf supports argument control])
|
||||
AC_CACHE_VAL(pgac_cv_snprintf_arg_control,
|
||||
[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
int main()
|
||||
{
|
||||
char buf[100];
|
||||
|
||||
/* can it swap arguments? */
|
||||
snprintf(buf, 100, "%2\$d %1\$d", 3, 4);
|
||||
if (strcmp(buf, "4 3") != 0)
|
||||
return 1;
|
||||
return 0;
|
||||
}]])],
|
||||
[pgac_cv_snprintf_arg_control=yes],
|
||||
[pgac_cv_snprintf_arg_control=no],
|
||||
[pgac_cv_snprintf_arg_control=cross])
|
||||
])dnl AC_CACHE_VAL
|
||||
AC_MSG_RESULT([$pgac_cv_snprintf_arg_control])
|
||||
])# PGAC_FUNC_SNPRINTF_ARG_CONTROL
|
||||
|
||||
# PGAC_FUNC_SNPRINTF_SIZE_T_SUPPORT
|
||||
# ---------------------------------
|
||||
# Determine if snprintf supports the z length modifier for printing
|
||||
# size_t-sized variables. That's supported by C99 and POSIX but not
|
||||
# all platforms play ball, so we must test whether it's working.
|
||||
#
|
||||
AC_DEFUN([PGAC_FUNC_SNPRINTF_SIZE_T_SUPPORT],
|
||||
[AC_MSG_CHECKING([whether snprintf supports the %z modifier])
|
||||
AC_CACHE_VAL(pgac_cv_snprintf_size_t_support,
|
||||
[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
int main()
|
||||
{
|
||||
char bufz[100];
|
||||
char buf64[100];
|
||||
|
||||
/*
|
||||
* Print the largest unsigned number fitting in a size_t using both %zu
|
||||
* and the previously-determined format for 64-bit integers. Note that
|
||||
* we don't run this code unless we know snprintf handles 64-bit ints.
|
||||
*/
|
||||
bufz[0] = '\0'; /* in case snprintf fails to emit anything */
|
||||
snprintf(bufz, sizeof(bufz), "%zu", ~((size_t) 0));
|
||||
snprintf(buf64, sizeof(buf64), "%" INT64_MODIFIER "u",
|
||||
(unsigned PG_INT64_TYPE) ~((size_t) 0));
|
||||
if (strcmp(bufz, buf64) != 0)
|
||||
return 1;
|
||||
return 0;
|
||||
}]])],
|
||||
[pgac_cv_snprintf_size_t_support=yes],
|
||||
[pgac_cv_snprintf_size_t_support=no],
|
||||
[pgac_cv_snprintf_size_t_support=cross])
|
||||
])dnl AC_CACHE_VAL
|
||||
AC_MSG_RESULT([$pgac_cv_snprintf_size_t_support])
|
||||
])# PGAC_FUNC_SNPRINTF_SIZE_T_SUPPORT
|
||||
|
||||
# PGAC_FUNC_SNPRINTF_C99_RESULT
|
||||
# -----------------------------
|
||||
# Determine whether snprintf returns the desired buffer length when
|
||||
# it overruns the actual buffer length. That's required by C99 and POSIX
|
||||
# but ancient platforms don't behave that way, so we must test.
|
||||
# While we're at it, let's just verify that it doesn't physically overrun
|
||||
# the buffer.
|
||||
#
|
||||
AC_DEFUN([PGAC_FUNC_SNPRINTF_C99_RESULT],
|
||||
[AC_MSG_CHECKING([whether snprintf handles buffer overrun per C99])
|
||||
AC_CACHE_VAL(pgac_cv_snprintf_c99_result,
|
||||
[AC_RUN_IFELSE([AC_LANG_SOURCE([[#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
int main()
|
||||
{
|
||||
char buf[10];
|
||||
|
||||
strcpy(buf, "abcdefghi");
|
||||
if (snprintf(buf, 4, "%d", 123456) != 6)
|
||||
return 1;
|
||||
if (strcmp(buf, "123") != 0 || buf[4] != 'e')
|
||||
return 1;
|
||||
return 0;
|
||||
}]])],
|
||||
[pgac_cv_snprintf_c99_result=yes],
|
||||
[pgac_cv_snprintf_c99_result=no],
|
||||
[pgac_cv_snprintf_c99_result=cross])
|
||||
])dnl AC_CACHE_VAL
|
||||
AC_MSG_RESULT([$pgac_cv_snprintf_c99_result])
|
||||
])# PGAC_FUNC_SNPRINTF_C99_RESULT
|
||||
|
||||
|
||||
# PGAC_TYPE_LOCALE_T
|
||||
# ------------------
|
||||
# Check for the locale_t type and find the right header file. macOS
|
||||
|
|
|
|||
|
|
@ -15367,97 +15367,6 @@ $as_echo "#define HAVE_PS_STRINGS 1" >>confdefs.h
|
|||
fi
|
||||
|
||||
|
||||
# We use our snprintf.c emulation if either snprintf() or vsnprintf()
|
||||
# is missing. Yes, there are machines that have only one. We may
|
||||
# also decide to use snprintf.c if snprintf() is present but does not
|
||||
# have all the features we need --- see below.
|
||||
|
||||
if test "$PORTNAME" = "win32"; then
|
||||
# Win32 gets snprintf.c built unconditionally.
|
||||
#
|
||||
# To properly translate all NLS languages strings, we must support the
|
||||
# *printf() %$ format, which allows *printf() arguments to be selected
|
||||
# by position in the translated string.
|
||||
#
|
||||
# libintl versions < 0.13 use the native *printf() functions, and Win32
|
||||
# *printf() doesn't understand %$, so we must use our /port versions,
|
||||
# which do understand %$. libintl versions >= 0.13 include their own
|
||||
# *printf versions on Win32. The libintl 0.13 release note text is:
|
||||
#
|
||||
# C format strings with positions, as they arise when a translator
|
||||
# needs to reorder a sentence, are now supported on all platforms.
|
||||
# On those few platforms (NetBSD and Woe32) for which the native
|
||||
# printf()/fprintf()/... functions don't support such format
|
||||
# strings, replacements are provided through <libintl.h>.
|
||||
#
|
||||
# We could use libintl >= 0.13's *printf() if we were sure that we had
|
||||
# a libintl >= 0.13 at runtime, but seeing that there is no clean way
|
||||
# to guarantee that, it is best to just use our own, so we are sure to
|
||||
# get %$ support. In include/port.h we disable the *printf() macros
|
||||
# that might have been defined by libintl.
|
||||
#
|
||||
# We do this unconditionally whether NLS is used or not so we are sure
|
||||
# that all Win32 libraries and binaries behave the same.
|
||||
pgac_need_repl_snprintf=yes
|
||||
else
|
||||
pgac_need_repl_snprintf=no
|
||||
for ac_func in snprintf
|
||||
do :
|
||||
ac_fn_c_check_func "$LINENO" "snprintf" "ac_cv_func_snprintf"
|
||||
if test "x$ac_cv_func_snprintf" = xyes; then :
|
||||
cat >>confdefs.h <<_ACEOF
|
||||
#define HAVE_SNPRINTF 1
|
||||
_ACEOF
|
||||
|
||||
else
|
||||
pgac_need_repl_snprintf=yes
|
||||
fi
|
||||
done
|
||||
|
||||
for ac_func in vsnprintf
|
||||
do :
|
||||
ac_fn_c_check_func "$LINENO" "vsnprintf" "ac_cv_func_vsnprintf"
|
||||
if test "x$ac_cv_func_vsnprintf" = xyes; then :
|
||||
cat >>confdefs.h <<_ACEOF
|
||||
#define HAVE_VSNPRINTF 1
|
||||
_ACEOF
|
||||
|
||||
else
|
||||
pgac_need_repl_snprintf=yes
|
||||
fi
|
||||
done
|
||||
|
||||
fi
|
||||
|
||||
|
||||
# Check whether <stdio.h> declares snprintf() and vsnprintf(); if not,
|
||||
# include/c.h will provide declarations. Note this is a separate test
|
||||
# from whether the functions exist in the C library --- there are
|
||||
# systems that have the functions but don't bother to declare them :-(
|
||||
|
||||
ac_fn_c_check_decl "$LINENO" "snprintf" "ac_cv_have_decl_snprintf" "$ac_includes_default"
|
||||
if test "x$ac_cv_have_decl_snprintf" = xyes; then :
|
||||
ac_have_decl=1
|
||||
else
|
||||
ac_have_decl=0
|
||||
fi
|
||||
|
||||
cat >>confdefs.h <<_ACEOF
|
||||
#define HAVE_DECL_SNPRINTF $ac_have_decl
|
||||
_ACEOF
|
||||
ac_fn_c_check_decl "$LINENO" "vsnprintf" "ac_cv_have_decl_vsnprintf" "$ac_includes_default"
|
||||
if test "x$ac_cv_have_decl_vsnprintf" = xyes; then :
|
||||
ac_have_decl=1
|
||||
else
|
||||
ac_have_decl=0
|
||||
fi
|
||||
|
||||
cat >>confdefs.h <<_ACEOF
|
||||
#define HAVE_DECL_VSNPRINTF $ac_have_decl
|
||||
_ACEOF
|
||||
|
||||
|
||||
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for isinf" >&5
|
||||
$as_echo_n "checking for isinf... " >&6; }
|
||||
if ${ac_cv_func_isinf+:} false; then :
|
||||
|
|
@ -16175,53 +16084,6 @@ fi
|
|||
# Run tests below here
|
||||
# --------------------
|
||||
|
||||
# For NLS, force use of our snprintf if system's doesn't do arg control.
|
||||
# See comment above at snprintf test for details.
|
||||
if test "$enable_nls" = yes -a "$pgac_need_repl_snprintf" = no; then
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether snprintf supports argument control" >&5
|
||||
$as_echo_n "checking whether snprintf supports argument control... " >&6; }
|
||||
if ${pgac_cv_snprintf_arg_control+:} false; then :
|
||||
$as_echo_n "(cached) " >&6
|
||||
else
|
||||
if test "$cross_compiling" = yes; then :
|
||||
pgac_cv_snprintf_arg_control=cross
|
||||
else
|
||||
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
|
||||
/* end confdefs.h. */
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
int main()
|
||||
{
|
||||
char buf[100];
|
||||
|
||||
/* can it swap arguments? */
|
||||
snprintf(buf, 100, "%2\$d %1\$d", 3, 4);
|
||||
if (strcmp(buf, "4 3") != 0)
|
||||
return 1;
|
||||
return 0;
|
||||
}
|
||||
_ACEOF
|
||||
if ac_fn_c_try_run "$LINENO"; then :
|
||||
pgac_cv_snprintf_arg_control=yes
|
||||
else
|
||||
pgac_cv_snprintf_arg_control=no
|
||||
fi
|
||||
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
|
||||
conftest.$ac_objext conftest.beam conftest.$ac_ext
|
||||
fi
|
||||
|
||||
|
||||
fi
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $pgac_cv_snprintf_arg_control" >&5
|
||||
$as_echo "$pgac_cv_snprintf_arg_control" >&6; }
|
||||
|
||||
if test $pgac_cv_snprintf_arg_control != yes ; then
|
||||
pgac_need_repl_snprintf=yes
|
||||
fi
|
||||
fi
|
||||
|
||||
|
||||
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether long int is 64 bits" >&5
|
||||
$as_echo_n "checking whether long int is 64 bits... " >&6; }
|
||||
|
|
@ -16401,8 +16263,6 @@ _ACEOF
|
|||
|
||||
|
||||
# Select the printf length modifier that goes with that, too.
|
||||
# (This used to be bound up with replacement-snprintf selection, but now
|
||||
# we assume that the native *printf functions use standard length modifiers.)
|
||||
if test x"$pg_int64_type" = x"long long int" ; then
|
||||
INT64_MODIFIER='"ll"'
|
||||
else
|
||||
|
|
@ -16415,120 +16275,6 @@ cat >>confdefs.h <<_ACEOF
|
|||
_ACEOF
|
||||
|
||||
|
||||
# Force use of our snprintf if the system's doesn't support the %z flag.
|
||||
# (Note this test uses PG_INT64_TYPE and INT64_MODIFIER.)
|
||||
if test "$pgac_need_repl_snprintf" = no; then
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether snprintf supports the %z modifier" >&5
|
||||
$as_echo_n "checking whether snprintf supports the %z modifier... " >&6; }
|
||||
if ${pgac_cv_snprintf_size_t_support+:} false; then :
|
||||
$as_echo_n "(cached) " >&6
|
||||
else
|
||||
if test "$cross_compiling" = yes; then :
|
||||
pgac_cv_snprintf_size_t_support=cross
|
||||
else
|
||||
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
|
||||
/* end confdefs.h. */
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
int main()
|
||||
{
|
||||
char bufz[100];
|
||||
char buf64[100];
|
||||
|
||||
/*
|
||||
* Print the largest unsigned number fitting in a size_t using both %zu
|
||||
* and the previously-determined format for 64-bit integers. Note that
|
||||
* we don't run this code unless we know snprintf handles 64-bit ints.
|
||||
*/
|
||||
bufz[0] = '\0'; /* in case snprintf fails to emit anything */
|
||||
snprintf(bufz, sizeof(bufz), "%zu", ~((size_t) 0));
|
||||
snprintf(buf64, sizeof(buf64), "%" INT64_MODIFIER "u",
|
||||
(unsigned PG_INT64_TYPE) ~((size_t) 0));
|
||||
if (strcmp(bufz, buf64) != 0)
|
||||
return 1;
|
||||
return 0;
|
||||
}
|
||||
_ACEOF
|
||||
if ac_fn_c_try_run "$LINENO"; then :
|
||||
pgac_cv_snprintf_size_t_support=yes
|
||||
else
|
||||
pgac_cv_snprintf_size_t_support=no
|
||||
fi
|
||||
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
|
||||
conftest.$ac_objext conftest.beam conftest.$ac_ext
|
||||
fi
|
||||
|
||||
|
||||
fi
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $pgac_cv_snprintf_size_t_support" >&5
|
||||
$as_echo "$pgac_cv_snprintf_size_t_support" >&6; }
|
||||
|
||||
if test "$pgac_cv_snprintf_size_t_support" != yes; then
|
||||
pgac_need_repl_snprintf=yes
|
||||
fi
|
||||
fi
|
||||
|
||||
# Force use of our snprintf if the system's doesn't handle buffer overrun
|
||||
# as specified by C99.
|
||||
if test "$pgac_need_repl_snprintf" = no; then
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether snprintf handles buffer overrun per C99" >&5
|
||||
$as_echo_n "checking whether snprintf handles buffer overrun per C99... " >&6; }
|
||||
if ${pgac_cv_snprintf_c99_result+:} false; then :
|
||||
$as_echo_n "(cached) " >&6
|
||||
else
|
||||
if test "$cross_compiling" = yes; then :
|
||||
pgac_cv_snprintf_c99_result=cross
|
||||
else
|
||||
cat confdefs.h - <<_ACEOF >conftest.$ac_ext
|
||||
/* end confdefs.h. */
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
int main()
|
||||
{
|
||||
char buf[10];
|
||||
|
||||
strcpy(buf, "abcdefghi");
|
||||
if (snprintf(buf, 4, "%d", 123456) != 6)
|
||||
return 1;
|
||||
if (strcmp(buf, "123") != 0 || buf[4] != 'e')
|
||||
return 1;
|
||||
return 0;
|
||||
}
|
||||
_ACEOF
|
||||
if ac_fn_c_try_run "$LINENO"; then :
|
||||
pgac_cv_snprintf_c99_result=yes
|
||||
else
|
||||
pgac_cv_snprintf_c99_result=no
|
||||
fi
|
||||
rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
|
||||
conftest.$ac_objext conftest.beam conftest.$ac_ext
|
||||
fi
|
||||
|
||||
|
||||
fi
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $pgac_cv_snprintf_c99_result" >&5
|
||||
$as_echo "$pgac_cv_snprintf_c99_result" >&6; }
|
||||
|
||||
if test "$pgac_cv_snprintf_c99_result" != yes; then
|
||||
pgac_need_repl_snprintf=yes
|
||||
fi
|
||||
fi
|
||||
|
||||
# Now we have checked all the reasons to replace snprintf
|
||||
if test $pgac_need_repl_snprintf = yes; then
|
||||
|
||||
$as_echo "#define USE_REPL_SNPRINTF 1" >>confdefs.h
|
||||
|
||||
case " $LIBOBJS " in
|
||||
*" snprintf.$ac_objext "* ) ;;
|
||||
*) LIBOBJS="$LIBOBJS snprintf.$ac_objext"
|
||||
;;
|
||||
esac
|
||||
|
||||
fi
|
||||
|
||||
# has to be down here, rather than with the other builtins, because
|
||||
# the test uses PG_INT64_TYPE.
|
||||
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for __builtin_mul_overflow" >&5
|
||||
|
|
|
|||
83
configure.in
83
configure.in
|
|
@ -1622,53 +1622,6 @@ if test "$pgac_cv_var_PS_STRINGS" = yes ; then
|
|||
fi
|
||||
|
||||
|
||||
# We use our snprintf.c emulation if either snprintf() or vsnprintf()
|
||||
# is missing. Yes, there are machines that have only one. We may
|
||||
# also decide to use snprintf.c if snprintf() is present but does not
|
||||
# have all the features we need --- see below.
|
||||
|
||||
if test "$PORTNAME" = "win32"; then
|
||||
# Win32 gets snprintf.c built unconditionally.
|
||||
#
|
||||
# To properly translate all NLS languages strings, we must support the
|
||||
# *printf() %$ format, which allows *printf() arguments to be selected
|
||||
# by position in the translated string.
|
||||
#
|
||||
# libintl versions < 0.13 use the native *printf() functions, and Win32
|
||||
# *printf() doesn't understand %$, so we must use our /port versions,
|
||||
# which do understand %$. libintl versions >= 0.13 include their own
|
||||
# *printf versions on Win32. The libintl 0.13 release note text is:
|
||||
#
|
||||
# C format strings with positions, as they arise when a translator
|
||||
# needs to reorder a sentence, are now supported on all platforms.
|
||||
# On those few platforms (NetBSD and Woe32) for which the native
|
||||
# printf()/fprintf()/... functions don't support such format
|
||||
# strings, replacements are provided through <libintl.h>.
|
||||
#
|
||||
# We could use libintl >= 0.13's *printf() if we were sure that we had
|
||||
# a libintl >= 0.13 at runtime, but seeing that there is no clean way
|
||||
# to guarantee that, it is best to just use our own, so we are sure to
|
||||
# get %$ support. In include/port.h we disable the *printf() macros
|
||||
# that might have been defined by libintl.
|
||||
#
|
||||
# We do this unconditionally whether NLS is used or not so we are sure
|
||||
# that all Win32 libraries and binaries behave the same.
|
||||
pgac_need_repl_snprintf=yes
|
||||
else
|
||||
pgac_need_repl_snprintf=no
|
||||
AC_CHECK_FUNCS(snprintf, [], pgac_need_repl_snprintf=yes)
|
||||
AC_CHECK_FUNCS(vsnprintf, [], pgac_need_repl_snprintf=yes)
|
||||
fi
|
||||
|
||||
|
||||
# Check whether <stdio.h> declares snprintf() and vsnprintf(); if not,
|
||||
# include/c.h will provide declarations. Note this is a separate test
|
||||
# from whether the functions exist in the C library --- there are
|
||||
# systems that have the functions but don't bother to declare them :-(
|
||||
|
||||
AC_CHECK_DECLS([snprintf, vsnprintf])
|
||||
|
||||
|
||||
dnl Cannot use AC_CHECK_FUNC because isinf may be a macro
|
||||
AC_CACHE_CHECK([for isinf], ac_cv_func_isinf,
|
||||
[AC_LINK_IFELSE([AC_LANG_PROGRAM([
|
||||
|
|
@ -1838,16 +1791,6 @@ for the exact reason.]])],
|
|||
# Run tests below here
|
||||
# --------------------
|
||||
|
||||
# For NLS, force use of our snprintf if system's doesn't do arg control.
|
||||
# See comment above at snprintf test for details.
|
||||
if test "$enable_nls" = yes -a "$pgac_need_repl_snprintf" = no; then
|
||||
PGAC_FUNC_SNPRINTF_ARG_CONTROL
|
||||
if test $pgac_cv_snprintf_arg_control != yes ; then
|
||||
pgac_need_repl_snprintf=yes
|
||||
fi
|
||||
fi
|
||||
|
||||
|
||||
dnl Check to see if we have a working 64-bit integer type.
|
||||
dnl Since Postgres 8.4, we no longer support compilers without a working
|
||||
dnl 64-bit type; but we have to determine whether that type is called
|
||||
|
|
@ -1870,8 +1813,6 @@ AC_DEFINE_UNQUOTED(PG_INT64_TYPE, $pg_int64_type,
|
|||
[Define to the name of a signed 64-bit integer type.])
|
||||
|
||||
# Select the printf length modifier that goes with that, too.
|
||||
# (This used to be bound up with replacement-snprintf selection, but now
|
||||
# we assume that the native *printf functions use standard length modifiers.)
|
||||
if test x"$pg_int64_type" = x"long long int" ; then
|
||||
INT64_MODIFIER='"ll"'
|
||||
else
|
||||
|
|
@ -1881,30 +1822,6 @@ fi
|
|||
AC_DEFINE_UNQUOTED(INT64_MODIFIER, $INT64_MODIFIER,
|
||||
[Define to the appropriate printf length modifier for 64-bit ints.])
|
||||
|
||||
# Force use of our snprintf if the system's doesn't support the %z flag.
|
||||
# (Note this test uses PG_INT64_TYPE and INT64_MODIFIER.)
|
||||
if test "$pgac_need_repl_snprintf" = no; then
|
||||
PGAC_FUNC_SNPRINTF_SIZE_T_SUPPORT
|
||||
if test "$pgac_cv_snprintf_size_t_support" != yes; then
|
||||
pgac_need_repl_snprintf=yes
|
||||
fi
|
||||
fi
|
||||
|
||||
# Force use of our snprintf if the system's doesn't handle buffer overrun
|
||||
# as specified by C99.
|
||||
if test "$pgac_need_repl_snprintf" = no; then
|
||||
PGAC_FUNC_SNPRINTF_C99_RESULT
|
||||
if test "$pgac_cv_snprintf_c99_result" != yes; then
|
||||
pgac_need_repl_snprintf=yes
|
||||
fi
|
||||
fi
|
||||
|
||||
# Now we have checked all the reasons to replace snprintf
|
||||
if test $pgac_need_repl_snprintf = yes; then
|
||||
AC_DEFINE(USE_REPL_SNPRINTF, 1, [Use replacement snprintf() functions.])
|
||||
AC_LIBOBJ(snprintf)
|
||||
fi
|
||||
|
||||
# has to be down here, rather than with the other builtins, because
|
||||
# the test uses PG_INT64_TYPE.
|
||||
PGAC_C_BUILTIN_OP_OVERFLOW
|
||||
|
|
|
|||
|
|
@ -1147,14 +1147,6 @@ typedef union PGAlignedXLogBlock
|
|||
* standard C library.
|
||||
*/
|
||||
|
||||
#if !HAVE_DECL_SNPRINTF
|
||||
extern int snprintf(char *str, size_t count, const char *fmt,...) pg_attribute_printf(3, 4);
|
||||
#endif
|
||||
|
||||
#if !HAVE_DECL_VSNPRINTF
|
||||
extern int vsnprintf(char *str, size_t count, const char *fmt, va_list args);
|
||||
#endif
|
||||
|
||||
#if defined(HAVE_FDATASYNC) && !HAVE_DECL_FDATASYNC
|
||||
extern int fdatasync(int fildes);
|
||||
#endif
|
||||
|
|
|
|||
|
|
@ -166,10 +166,6 @@
|
|||
don't. */
|
||||
#undef HAVE_DECL_RTLD_NOW
|
||||
|
||||
/* Define to 1 if you have the declaration of `snprintf', and to 0 if you
|
||||
don't. */
|
||||
#undef HAVE_DECL_SNPRINTF
|
||||
|
||||
/* Define to 1 if you have the declaration of `strlcat', and to 0 if you
|
||||
don't. */
|
||||
#undef HAVE_DECL_STRLCAT
|
||||
|
|
@ -194,10 +190,6 @@
|
|||
don't. */
|
||||
#undef HAVE_DECL_SYS_SIGLIST
|
||||
|
||||
/* Define to 1 if you have the declaration of `vsnprintf', and to 0 if you
|
||||
don't. */
|
||||
#undef HAVE_DECL_VSNPRINTF
|
||||
|
||||
/* Define to 1 if you have the `dlopen' function. */
|
||||
#undef HAVE_DLOPEN
|
||||
|
||||
|
|
@ -510,9 +502,6 @@
|
|||
/* Define to 1 if you have the `shm_open' function. */
|
||||
#undef HAVE_SHM_OPEN
|
||||
|
||||
/* Define to 1 if you have the `snprintf' function. */
|
||||
#undef HAVE_SNPRINTF
|
||||
|
||||
/* Define to 1 if you have spinlocks. */
|
||||
#undef HAVE_SPINLOCKS
|
||||
|
||||
|
|
@ -715,9 +704,6 @@
|
|||
/* Define to 1 if you have the <uuid/uuid.h> header file. */
|
||||
#undef HAVE_UUID_UUID_H
|
||||
|
||||
/* Define to 1 if you have the `vsnprintf' function. */
|
||||
#undef HAVE_VSNPRINTF
|
||||
|
||||
/* Define to 1 if you have the <wchar.h> header file. */
|
||||
#undef HAVE_WCHAR_H
|
||||
|
||||
|
|
@ -926,9 +912,6 @@
|
|||
/* Define to 1 to build with PAM support. (--with-pam) */
|
||||
#undef USE_PAM
|
||||
|
||||
/* Use replacement snprintf() functions. */
|
||||
#undef USE_REPL_SNPRINTF
|
||||
|
||||
/* Define to 1 to use software CRC-32C implementation (slicing-by-8). */
|
||||
#undef USE_SLICING_BY_8_CRC32C
|
||||
|
||||
|
|
|
|||
|
|
@ -135,10 +135,6 @@
|
|||
don't. */
|
||||
#define HAVE_DECL_RTLD_NOW 0
|
||||
|
||||
/* Define to 1 if you have the declaration of `snprintf', and to 0 if you
|
||||
don't. */
|
||||
#define HAVE_DECL_SNPRINTF 1
|
||||
|
||||
/* Define to 1 if you have the declaration of `strnlen', and to 0 if you
|
||||
don't. */
|
||||
#define HAVE_DECL_STRNLEN 1
|
||||
|
|
@ -151,10 +147,6 @@
|
|||
don't. */
|
||||
#define HAVE_DECL_STRTOULL 1
|
||||
|
||||
/* Define to 1 if you have the declaration of `vsnprintf', and to 0 if you
|
||||
don't. */
|
||||
#define HAVE_DECL_VSNPRINTF 1
|
||||
|
||||
/* Define to 1 if you have the `dlopen' function. */
|
||||
/* #undef HAVE_DLOPEN */
|
||||
|
||||
|
|
@ -376,9 +368,6 @@
|
|||
/* Define to 1 if you have the `setsid' function. */
|
||||
/* #undef HAVE_SETSID */
|
||||
|
||||
/* Define to 1 if you have the `snprintf' function. */
|
||||
/* #undef HAVE_SNPRINTF */
|
||||
|
||||
/* Define to 1 if you have spinlocks. */
|
||||
#define HAVE_SPINLOCKS 1
|
||||
|
||||
|
|
@ -556,9 +545,6 @@
|
|||
/* Define to 1 if you have the <utime.h> header file. */
|
||||
#define HAVE_UTIME_H 1
|
||||
|
||||
/* Define to 1 if you have the `vsnprintf' function. */
|
||||
#define HAVE_VSNPRINTF 1
|
||||
|
||||
/* Define to 1 if you have the <wchar.h> header file. */
|
||||
#define HAVE_WCHAR_H 1
|
||||
|
||||
|
|
@ -715,9 +701,6 @@
|
|||
/* Define to 1 to build with PAM support. (--with-pam) */
|
||||
/* #undef USE_PAM */
|
||||
|
||||
/* Use replacement snprintf() functions. */
|
||||
#define USE_REPL_SNPRINTF 1
|
||||
|
||||
/* Define to 1 to use software CRC-32C implementation (slicing-by-8). */
|
||||
#if (_MSC_VER < 1500)
|
||||
#define USE_SLICING_BY_8_CRC32C 1
|
||||
|
|
|
|||
|
|
@ -134,7 +134,12 @@ extern unsigned char pg_tolower(unsigned char ch);
|
|||
extern unsigned char pg_ascii_toupper(unsigned char ch);
|
||||
extern unsigned char pg_ascii_tolower(unsigned char ch);
|
||||
|
||||
#ifdef USE_REPL_SNPRINTF
|
||||
/*
|
||||
* Beginning in v12, we always replace snprintf() and friends with our own
|
||||
* implementation. This symbol is no longer consulted by the core code,
|
||||
* but keep it defined anyway in case any extensions are looking at it.
|
||||
*/
|
||||
#define USE_REPL_SNPRINTF 1
|
||||
|
||||
/*
|
||||
* Versions of libintl >= 0.13 try to replace printf() and friends with
|
||||
|
|
@ -187,7 +192,6 @@ extern int pg_printf(const char *fmt,...) pg_attribute_printf(1, 2);
|
|||
#define fprintf pg_fprintf
|
||||
#define printf pg_printf
|
||||
#endif
|
||||
#endif /* USE_REPL_SNPRINTF */
|
||||
|
||||
/* Replace strerror() with our own, somewhat more robust wrapper */
|
||||
extern char *pg_strerror(int errnum);
|
||||
|
|
|
|||
|
|
@ -31,7 +31,8 @@ SHLIB_EXPORTS = exports.txt
|
|||
# Need to recompile any libpgport object files
|
||||
LIBS := $(filter-out -lpgport, $(LIBS))
|
||||
|
||||
OBJS= informix.o strerror.o $(filter snprintf.o strnlen.o, $(LIBOBJS)) $(WIN32RES)
|
||||
OBJS= informix.o snprintf.o strerror.o \
|
||||
$(filter strnlen.o, $(LIBOBJS)) $(WIN32RES)
|
||||
|
||||
PKG_CONFIG_REQUIRES_PRIVATE = libecpg libpgtypes
|
||||
|
||||
|
|
|
|||
|
|
@ -26,8 +26,8 @@ override CFLAGS += $(PTHREAD_CFLAGS)
|
|||
LIBS := $(filter-out -lpgport, $(LIBS))
|
||||
|
||||
OBJS= execute.o typename.o descriptor.o sqlda.o data.o error.o prepare.o memory.o \
|
||||
connect.o misc.o path.o pgstrcasecmp.o strerror.o \
|
||||
$(filter snprintf.o strlcpy.o strnlen.o win32setlocale.o isinf.o, $(LIBOBJS)) \
|
||||
connect.o misc.o path.o pgstrcasecmp.o snprintf.o strerror.o \
|
||||
$(filter strlcpy.o strnlen.o win32setlocale.o isinf.o, $(LIBOBJS)) \
|
||||
$(WIN32RES)
|
||||
|
||||
# thread.c is needed only for non-WIN32 implementation of path.c
|
||||
|
|
|
|||
|
|
@ -30,8 +30,8 @@ SHLIB_LINK += $(filter -lm, $(LIBS))
|
|||
SHLIB_EXPORTS = exports.txt
|
||||
|
||||
OBJS= numeric.o datetime.o common.o dt_common.o timestamp.o interval.o \
|
||||
pgstrcasecmp.o strerror.o \
|
||||
$(filter rint.o snprintf.o strnlen.o, $(LIBOBJS)) \
|
||||
pgstrcasecmp.o snprintf.o strerror.o \
|
||||
$(filter rint.o strnlen.o, $(LIBOBJS)) \
|
||||
string.o \
|
||||
$(WIN32RES)
|
||||
|
||||
|
|
|
|||
|
|
@ -36,9 +36,9 @@ OBJS= fe-auth.o fe-auth-scram.o fe-connect.o fe-exec.o fe-misc.o fe-print.o fe-l
|
|||
libpq-events.o
|
||||
# libpgport C files we always use
|
||||
OBJS += chklocale.o inet_net_ntop.o noblock.o pgstrcasecmp.o pqsignal.o \
|
||||
strerror.o thread.o
|
||||
snprintf.o strerror.o thread.o
|
||||
# libpgport C files that are needed if identified by configure
|
||||
OBJS += $(filter crypt.o getaddrinfo.o getpeereid.o inet_aton.o open.o system.o snprintf.o strlcpy.o strnlen.o win32error.o win32setlocale.o, $(LIBOBJS))
|
||||
OBJS += $(filter crypt.o getaddrinfo.o getpeereid.o inet_aton.o open.o system.o strlcpy.o strnlen.o win32error.o win32setlocale.o, $(LIBOBJS))
|
||||
|
||||
ifeq ($(enable_strong_random), yes)
|
||||
OBJS += pg_strong_random.o
|
||||
|
|
|
|||
|
|
@ -29,11 +29,8 @@
|
|||
* Sometimes perl carefully scribbles on our *printf macros.
|
||||
* So we undefine them here and redefine them after it's done its dirty deed.
|
||||
*/
|
||||
|
||||
#ifdef USE_REPL_SNPRINTF
|
||||
#undef snprintf
|
||||
#undef vsnprintf
|
||||
#endif
|
||||
|
||||
/*
|
||||
* ActivePerl 5.18 and later are MinGW-built, and their headers use GCC's
|
||||
|
|
@ -99,7 +96,6 @@
|
|||
#endif
|
||||
|
||||
/* put back our snprintf and vsnprintf */
|
||||
#ifdef USE_REPL_SNPRINTF
|
||||
#ifdef snprintf
|
||||
#undef snprintf
|
||||
#endif
|
||||
|
|
@ -113,7 +109,6 @@
|
|||
#define vsnprintf pg_vsnprintf
|
||||
#define snprintf pg_snprintf
|
||||
#endif /* __GNUC__ */
|
||||
#endif /* USE_REPL_SNPRINTF */
|
||||
|
||||
/* perl version and platform portability */
|
||||
#define NEED_eval_pv
|
||||
|
|
|
|||
|
|
@ -33,11 +33,8 @@
|
|||
* Sometimes python carefully scribbles on our *printf macros.
|
||||
* So we undefine them here and redefine them after it's done its dirty deed.
|
||||
*/
|
||||
|
||||
#ifdef USE_REPL_SNPRINTF
|
||||
#undef snprintf
|
||||
#undef vsnprintf
|
||||
#endif
|
||||
|
||||
#if defined(_MSC_VER) && defined(_DEBUG)
|
||||
/* Python uses #pragma to bring in a non-default libpython on VC++ if
|
||||
|
|
@ -124,7 +121,6 @@ typedef int Py_ssize_t;
|
|||
#include <eval.h>
|
||||
|
||||
/* put back our snprintf and vsnprintf */
|
||||
#ifdef USE_REPL_SNPRINTF
|
||||
#ifdef snprintf
|
||||
#undef snprintf
|
||||
#endif
|
||||
|
|
@ -138,7 +134,6 @@ typedef int Py_ssize_t;
|
|||
#define vsnprintf pg_vsnprintf
|
||||
#define snprintf pg_snprintf
|
||||
#endif /* __GNUC__ */
|
||||
#endif /* USE_REPL_SNPRINTF */
|
||||
|
||||
/*
|
||||
* Used throughout, and also by the Python 2/3 porting layer, so it's easier to
|
||||
|
|
|
|||
|
|
@ -33,7 +33,8 @@ LIBS += $(PTHREAD_LIBS)
|
|||
OBJS = $(LIBOBJS) $(PG_CRC32C_OBJS) chklocale.o erand48.o inet_net_ntop.o \
|
||||
noblock.o path.o pgcheckdir.o pgmkdirp.o pgsleep.o \
|
||||
pgstrcasecmp.o pqsignal.o \
|
||||
qsort.o qsort_arg.o quotes.o sprompt.o strerror.o tar.o thread.o
|
||||
qsort.o qsort_arg.o quotes.o snprintf.o sprompt.o strerror.o \
|
||||
tar.o thread.o
|
||||
|
||||
ifeq ($(enable_strong_random), yes)
|
||||
OBJS += pg_strong_random.o
|
||||
|
|
|
|||
|
|
@ -18,7 +18,7 @@ and adding infrastructure to recompile the object files:
|
|||
|
||||
OBJS= execute.o typename.o descriptor.o data.o error.o prepare.o memory.o \
|
||||
connect.o misc.o path.o exec.o \
|
||||
$(filter snprintf.o, $(LIBOBJS))
|
||||
$(filter strlcat.o, $(LIBOBJS))
|
||||
|
||||
The problem is that there is no testing of which object files need to be
|
||||
added, but missing functions usually show up when linking user
|
||||
|
|
|
|||
Loading…
Reference in New Issue