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Hide internal printf functions [BZ #18822/21986]

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Hide internal printf functions to allow direct access within libc.so and
libc.a without using GOT nor PLT.

Since __guess_grouping has been changed to take 2 arguments by

commit a1d84548c8
Author: Ulrich Drepper <drepper@redhat.com>
Date:   Fri Feb 11 18:50:36 2000 +0000

the third argument passed to __guess_grouping is removed.

	[BZ #18822]
	[BZ #21986]
	* include/printf.h (__printf_fphex): Add attribute_hidden.
	(__guess_grouping): New prototype.
	* stdio-common/printf_fp.c (__guess_grouping): Removed.
	* stdio-common/reg-printf.c (__register_printf_specifier): Add
	libc_hidden_proto and libc_hidden_def.
	* stdlib/strfmon_l.c (__guess_grouping): Removed.
	(__vstrfmon_l): Remove the third argument passed to
	__guess_grouping.
This commit is contained in:
H.J. Lu
2017-08-22 07:47:34 -07:00
parent a16e8bc08e
commit 20962acbea
5 changed files with 21 additions and 11 deletions
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9
stdlib/strfmon_l.c
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@ -68,11 +68,6 @@
#define _NL_CURRENT(category, item) \
(current->values[_NL_ITEM_INDEX (item)].string)
/* This function determines the number of digit groups in the output.
The definition is in printf_fp.c. */
extern unsigned int __guess_grouping (unsigned int intdig_max,
const char *grouping, wchar_t sepchar);
/* We have to overcome some problems with this implementation. On the
one hand the strfmon() function is specified in XPG4 and of course
@ -324,9 +319,7 @@ __vstrfmon_l (char *s, size_t maxsize, locale_t loc, const char *format,
extra characters this means. */
if (group && left_prec != -1)
left_prec += __guess_grouping (left_prec,
_NL_CURRENT (LC_MONETARY, MON_GROUPING),
*_NL_CURRENT (LC_MONETARY,
MON_THOUSANDS_SEP));
_NL_CURRENT (LC_MONETARY, MON_GROUPING));
/* Now it's time to get the value. */
if (is_long_double == 1)