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Mark internal gmp functions with attribute_hidden [BZ #18822]

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Mark internal gmp functions with attribute_hidden to allow direct
access within libc.so and libc.a without using GOT nor PLT.

	[BZ #18822]
	* include/gmp.h: Declare internal functions only if _ISOMAC is
	undefined.
	(__mpn_extract_double): Add attribute_hidden.
	(__mpn_extract_long_double): Likewise.
	(__mpn_extract_float128): Likewise.
	(__mpn_construct_float): Likewise.
	(__mpn_construct_double): Likewise.
	(__mpn_construct_long_double): Likewise.
	(__mpn_construct_float128): Likewise.
	(mpn_add_1): Likewise.
	(mpn_addmul_1): Likewise.
	(mpn_add_n): Likewise.
	(mpn_cmp): Likewise.
	(mpn_divrem): Likewise.
	(mpn_lshift): Likewise.
	(mpn_mul): Likewise.
	(mpn_mul_1): Likewise.
	(mpn_rshift): Likewise.
	(mpn_sub_1): Likewise.
	(mpn_submul_1): Likewise.
	(mpn_sub_n): Likewise.
This commit is contained in:
H.J. Lu 2017-10-01 15:15:15 -07:00
parent 44af8a32c3
commit a2ca165230
3 changed files with 59 additions and 11 deletions
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25
ChangeLog
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@ -1,3 +1,28 @@
2017-10-01 H.J. Lu <hongjiu.lu@intel.com>
[BZ #18822]
* include/gmp.h: Declare internal functions only if _ISOMAC is
undefined.
(__mpn_extract_double): Add attribute_hidden.
(__mpn_extract_long_double): Likewise.
(__mpn_extract_float128): Likewise.
(__mpn_construct_float): Likewise.
(__mpn_construct_double): Likewise.
(__mpn_construct_long_double): Likewise.
(__mpn_construct_float128): Likewise.
(mpn_add_1): Likewise.
(mpn_addmul_1): Likewise.
(mpn_add_n): Likewise.
(mpn_cmp): Likewise.
(mpn_divrem): Likewise.
(mpn_lshift): Likewise.
(mpn_mul): Likewise.
(mpn_mul_1): Likewise.
(mpn_rshift): Likewise.
(mpn_sub_1): Likewise.
(mpn_submul_1): Likewise.
(mpn_sub_n): Likewise.
2017-10-01 H.J. Lu <hongjiu.lu@intel.com>
[BZ #18822]

33
include/gmp.h
View File

@ -8,32 +8,51 @@
#include <bits/floatn.h>
#ifndef _ISOMAC
/* Now define the internal interfaces. */
extern mp_size_t __mpn_extract_double (mp_ptr res_ptr, mp_size_t size,
int *expt, int *is_neg,
double value);
double value) attribute_hidden;
extern mp_size_t __mpn_extract_long_double (mp_ptr res_ptr, mp_size_t size,
int *expt, int *is_neg,
long double value);
long double value)
attribute_hidden;
#if __HAVE_DISTINCT_FLOAT128
extern mp_size_t __mpn_extract_float128 (mp_ptr res_ptr, mp_size_t size,
int *expt, int *is_neg,
_Float128 value);
_Float128 value)
attribute_hidden;
#endif
extern float __mpn_construct_float (mp_srcptr frac_ptr, int expt, int sign);
extern float __mpn_construct_float (mp_srcptr frac_ptr, int expt, int sign)
attribute_hidden;
extern double __mpn_construct_double (mp_srcptr frac_ptr, int expt,
int negative);
int negative) attribute_hidden;
extern long double __mpn_construct_long_double (mp_srcptr frac_ptr, int expt,
int sign);
int sign)
attribute_hidden;
#if __HAVE_DISTINCT_FLOAT128
extern _Float128 __mpn_construct_float128 (mp_srcptr frac_ptr, int expt,
int sign);
int sign) attribute_hidden;
#endif
extern __typeof (mpn_add_1) mpn_add_1 attribute_hidden;
extern __typeof (mpn_addmul_1) mpn_addmul_1 attribute_hidden;
extern __typeof (mpn_add_n) mpn_add_n attribute_hidden;
extern __typeof (mpn_cmp) mpn_cmp attribute_hidden;
extern __typeof (mpn_divrem) mpn_divrem attribute_hidden;
extern __typeof (mpn_lshift) mpn_lshift attribute_hidden;
extern __typeof (mpn_mul) mpn_mul attribute_hidden;
extern __typeof (mpn_mul_1) mpn_mul_1 attribute_hidden;
extern __typeof (mpn_rshift) mpn_rshift attribute_hidden;
extern __typeof (mpn_sub_1) mpn_sub_1 attribute_hidden;
extern __typeof (mpn_submul_1) mpn_submul_1 attribute_hidden;
extern __typeof (mpn_sub_n) mpn_sub_n attribute_hidden;
#endif
#endif

12
stdlib/gmp-impl.h
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@ -308,13 +308,17 @@ typedef unsigned int UHWtype;
/* Prototypes for internal mpn calls. */
extern void impn_mul_n_basecase _PROTO ((mp_ptr prodp, mp_srcptr up,
mp_srcptr vp, mp_size_t size));
mp_srcptr vp, mp_size_t size))
attribute_hidden;
extern void impn_mul_n _PROTO ((mp_ptr prodp, mp_srcptr up, mp_srcptr vp,
mp_size_t size, mp_ptr tspace));
mp_size_t size, mp_ptr tspace))
attribute_hidden;
extern void impn_sqr_n_basecase _PROTO ((mp_ptr prodp, mp_srcptr up,
mp_size_t size));
mp_size_t size))
attribute_hidden;
extern void impn_sqr_n _PROTO ((mp_ptr prodp, mp_srcptr up, mp_size_t size,
mp_ptr tspace));
mp_ptr tspace))
attribute_hidden;