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Fix lgamma setting signgam for ISO C (bug 15421).

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The lgamma (and likewise lgammaf, lgammal) function wrongly sets the
signgam variable even when building for strict ISO C conformance
(-std=c99 / -std=c11), although the user may define such a variable
and it's only in the implementation namespace for POSIX with XSI
extensions enabled.

Following discussions starting at
<https://sourceware.org/ml/libc-alpha/2013-04/msg00767.html> and
<https://sourceware.org/ml/libc-alpha/2015-10/msg00844.html>, it seems
that the safest approach for fixing this particular issue is for
signgam to become a weak alias for a newly exported symbol __signgam,
with the library functions only setting __signgam, at which point
static linker magic will preserve the alias for newly linked binaries
that refer to the library's signgam rather than defining their own,
while breaking the alias for programs that define their own signgam,
with new symbol versions for lgamma functions and with compat symbols
for existing binaries that set both signgam and __signgam.

This patch implements that approach for the fix.  signgam is made into
a weak alias.  The four symbols __signgam, lgamma, lgammaf, lgammal
get new symbol versions at version GLIBC_2.23, with the existing
versions of lgamma, lgammaf and lgammal becoming compat symbols.

When the compat versions are built, gamma, gammaf and gammal are
aliases for the compat versions (i.e. always set signgam); this is OK
as they are not ISO C functions, and avoids adding new symbol versions
for them unnecessarily.  When the compat versions are not built
(i.e. for static linking and for future glibc ports), gamma, gammaf
and gammal are aliases for the new versions that set __signgam.  The
ldbl-opt versions are updated accordingly.

The lgamma wrappers are adjusted so that the same source files,
included from different files with different definitions of
USE_AS_COMPAT, can build either the new versions or the compat
versions.  Similar changes are made to the ia64 versions (untested).

Tests are added that the lgamma functions do not interfere with a user
variable called signgam for ISO C, with various choices for the size
of that variable, whether it is initialized, and for static and
dynamic linking.  The conformtest whitelist entry is removed as well.

Tested for x86_64, x86, mips64 and powerpc, including looking at
objdump --dynamic-syms output to make sure the expected sets of
symbols were aliases.  Also spot-tested that a binary built with old
glibc works properly (i.e. gets signgam set) when run with new glibc.

	[BZ #15421]
	* sysdeps/ieee754/s_signgam.c (signgam): Rename to __signgam,
	initialize with 0 and define as weak alias of __signgam.
	* include/math.h [!_ISOMAC] (__signgam): Declare.
	* math/Makefile (libm-calls): Add w_lgamma_compat.
	(tests): Add test-signgam-uchar, test-signgam-uchar-init,
	test-signgam-uint, test-signgam-uint-init, test-signgam-ullong and
	test-signgam-ullong-init.
	(tests-static): Add test-signgam-uchar-static,
	test-signgam-uchar-init-static, test-signgam-uint-static,
	test-signgam-uint-init-static, test-signgam-ullong-static and
	test-signgam-ullong-init-static.
	(CFLAGS-test-signgam-uchar.c): New variable.
	(CFLAGS-test-signgam-uchar-init.c): Likewise.
	(CFLAGS-test-signgam-uchar-static.c): Likewise.
	(CFLAGS-test-signgam-uchar-init-static.c): Likewise.
	(CFLAGS-test-signgam-uint.c): Likewise.
	(CFLAGS-test-signgam-uint-init.c): Likewise.
	(CFLAGS-test-signgam-uint-static.c): Likewise.
	(CFLAGS-test-signgam-uint-init-static.c): Likewise.
	(CFLAGS-test-signgam-ullong.c): Likewise.
	(CFLAGS-test-signgam-ullong-init.c): Likewise.
	(CFLAGS-test-signgam-ullong-static.c): Likewise.
	(CFLAGS-test-signgam-ullong-init-static.c): Likewise.
	* math/Versions (libm): Add GLIBC_2.23.
	* math/lgamma-compat.h: New file.
	* math/test-signgam-main.c: Likewise.
	* math/test-signgam-uchar-init-static.c: Likewise.
	* math/test-signgam-uchar-init.c: Likewise.
	* math/test-signgam-uchar-static.c: Likewise.
	* math/test-signgam-uchar.c: Likewise.
	* math/test-signgam-uint-init-static.c: Likewise.
	* math/test-signgam-uint-init.c: Likewise.
	* math/test-signgam-uint-static.c: Likewise.
	* math/test-signgam-uint.c: Likewise.
	* math/test-signgam-ullong-init-static.c: Likewise.
	* math/test-signgam-ullong-init.c: Likewise.
	* math/test-signgam-ullong-static.c: Likewise.
	* math/test-signgam-ullong.c: Likewise.
	* math/w_lgamma.c: Rename to w_lgamma_main.c and replace by
	wrapper of w_lgamma_main.c.
	* math/w_lgamma_compat.c: New file.
	* math/w_lgamma_compatf.c: Likewise.
	* math/w_lgamma_compatl.c: Likewise.
	* math/w_lgamma_main.c: New file.  Based on w_lgamma.c.  Include
	<lgamma-compat.h>.  Condition contents on [BUILD_LGAMMA].  Support
	defining compatibility symbols.
	(__lgamma): Change to LGFUNC (__lgamma).  Use CALL_LGAMMA.
	* math/w_lgammaf.c: Rename to w_lgammaf_main.c and replace by
	wrapper of w_lgammaf_main.c.
	* math/w_lgammaf_main.c: New file.  Based on w_lgammaf.c.  Include
	<lgamma-compat.h>.  Condition contents on [BUILD_LGAMMA].  Support
	defining compatibility symbols.
	(__lgammaf): Change to LGFUNC (__lgammaf).  Use CALL_LGAMMA.
	* math/w_lgammal.c: Rename to w_lgammal_main.c and replace by
	wrapper of w_lgammal_main.c.
	* math/w_lgammal_main.c: New file.  Based on w_lgammal.c.  Include
	<lgamma-compat.h>.  Condition contents on [BUILD_LGAMMA].  Support
	defining compatibility symbols.
	(__lgammal): Change to LGFUNC (__lgammal).  Use CALL_LGAMMA.
	* sysdeps/ia64/fpu/lgamma-compat.h: New file.
	* sysdeps/ia64/fpu/w_lgamma.c: Move to ....
	* sysdeps/ia64/fpu/w_lgamma_main.c: ...here.  Include
	<lgamma-compat.h>.
	(__ieee754_lgamma): Change to LGFUNC (lgamma).  Use CALL_LGAMMA.
	(__ieee754_gamma): Define as alias.
	* sysdeps/ia64/fpu/w_lgammaf.c: Move to ....
	* sysdeps/ia64/fpu/w_lgammaf_main.c: ...here.  Include
	<lgamma-compat.h>.
	(__ieee754_lgammaf): Change to LGFUNC (lgammaf).  Use CALL_LGAMMA.
	(__ieee754_gammaf): Define as alias.
	* sysdeps/ia64/fpu/w_lgammal.c: Move to ....
	* sysdeps/ia64/fpu/w_lgammal_main.c: ...here.  Include
	<lgamma-compat.h>.
	(__ieee754_lgammal): Change to LGFUNC (lgammal).  Use CALL_LGAMMA.
	(__ieee754_gammal): Define as alias.
	* sysdeps/ieee754/ldbl-opt/w_lgamma.c: Move to ....
	* sysdeps/ieee754/ldbl-opt/w_lgamma_compat.c: ...here.  Include
	<math/w_lgamma_compat.c>.
	[LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)] (__lgammal_dbl_compat):
	Define as alias of __lgamma_compat and use in defining lgammal.
	* sysdeps/ieee754/ldbl-opt/w_lgammal.c: Move to ....
	* sysdeps/ieee754/ldbl-opt/w_lgamma_compatl.c: ...here.  Include
	<math/lgamma-compat.h> and <math/w_lgamma_compatl.c>.
	(USE_AS_COMPAT): New macro.
	(LGAMMA_OLD_VER): Undefine and redefine.
	(lgammal): Do not define here.
	(gammal): Only define here if [GAMMA_ALIAS].
	* conform/linknamespace.pl (@whitelist): Remove signgam.
	* sysdeps/nacl/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
This commit is contained in:
Joseph Myers 2015-11-20 22:49:59 +00:00
parent 8c873bf019
commit d709042a6e
65 changed files with 721 additions and 204 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

125
ChangeLog
View File

@ -1,3 +1,128 @@
2015-11-20 Joseph Myers <joseph@codesourcery.com>
[BZ #15421]
* sysdeps/ieee754/s_signgam.c (signgam): Rename to __signgam,
initialize with 0 and define as weak alias of __signgam.
* include/math.h [!_ISOMAC] (__signgam): Declare.
* math/Makefile (libm-calls): Add w_lgamma_compat.
(tests): Add test-signgam-uchar, test-signgam-uchar-init,
test-signgam-uint, test-signgam-uint-init, test-signgam-ullong and
test-signgam-ullong-init.
(tests-static): Add test-signgam-uchar-static,
test-signgam-uchar-init-static, test-signgam-uint-static,
test-signgam-uint-init-static, test-signgam-ullong-static and
test-signgam-ullong-init-static.
(CFLAGS-test-signgam-uchar.c): New variable.
(CFLAGS-test-signgam-uchar-init.c): Likewise.
(CFLAGS-test-signgam-uchar-static.c): Likewise.
(CFLAGS-test-signgam-uchar-init-static.c): Likewise.
(CFLAGS-test-signgam-uint.c): Likewise.
(CFLAGS-test-signgam-uint-init.c): Likewise.
(CFLAGS-test-signgam-uint-static.c): Likewise.
(CFLAGS-test-signgam-uint-init-static.c): Likewise.
(CFLAGS-test-signgam-ullong.c): Likewise.
(CFLAGS-test-signgam-ullong-init.c): Likewise.
(CFLAGS-test-signgam-ullong-static.c): Likewise.
(CFLAGS-test-signgam-ullong-init-static.c): Likewise.
* math/Versions (libm): Add GLIBC_2.23.
* math/lgamma-compat.h: New file.
* math/test-signgam-main.c: Likewise.
* math/test-signgam-uchar-init-static.c: Likewise.
* math/test-signgam-uchar-init.c: Likewise.
* math/test-signgam-uchar-static.c: Likewise.
* math/test-signgam-uchar.c: Likewise.
* math/test-signgam-uint-init-static.c: Likewise.
* math/test-signgam-uint-init.c: Likewise.
* math/test-signgam-uint-static.c: Likewise.
* math/test-signgam-uint.c: Likewise.
* math/test-signgam-ullong-init-static.c: Likewise.
* math/test-signgam-ullong-init.c: Likewise.
* math/test-signgam-ullong-static.c: Likewise.
* math/test-signgam-ullong.c: Likewise.
* math/w_lgamma.c: Rename to w_lgamma_main.c and replace by
wrapper of w_lgamma_main.c.
* math/w_lgamma_compat.c: New file.
* math/w_lgamma_compatf.c: Likewise.
* math/w_lgamma_compatl.c: Likewise.
* math/w_lgamma_main.c: New file. Based on w_lgamma.c. Include
<lgamma-compat.h>. Condition contents on [BUILD_LGAMMA]. Support
defining compatibility symbols.
(__lgamma): Change to LGFUNC (__lgamma). Use CALL_LGAMMA.
* math/w_lgammaf.c: Rename to w_lgammaf_main.c and replace by
wrapper of w_lgammaf_main.c.
* math/w_lgammaf_main.c: New file. Based on w_lgammaf.c. Include
<lgamma-compat.h>. Condition contents on [BUILD_LGAMMA]. Support
defining compatibility symbols.
(__lgammaf): Change to LGFUNC (__lgammaf). Use CALL_LGAMMA.
* math/w_lgammal.c: Rename to w_lgammal_main.c and replace by
wrapper of w_lgammal_main.c.
* math/w_lgammal_main.c: New file. Based on w_lgammal.c. Include
<lgamma-compat.h>. Condition contents on [BUILD_LGAMMA]. Support
defining compatibility symbols.
(__lgammal): Change to LGFUNC (__lgammal). Use CALL_LGAMMA.
* sysdeps/ia64/fpu/lgamma-compat.h: New file.
* sysdeps/ia64/fpu/w_lgamma.c: Move to ....
* sysdeps/ia64/fpu/w_lgamma_main.c: ...here. Include
<lgamma-compat.h>.
(__ieee754_lgamma): Change to LGFUNC (lgamma). Use CALL_LGAMMA.
(__ieee754_gamma): Define as alias.
* sysdeps/ia64/fpu/w_lgammaf.c: Move to ....
* sysdeps/ia64/fpu/w_lgammaf_main.c: ...here. Include
<lgamma-compat.h>.
(__ieee754_lgammaf): Change to LGFUNC (lgammaf). Use CALL_LGAMMA.
(__ieee754_gammaf): Define as alias.
* sysdeps/ia64/fpu/w_lgammal.c: Move to ....
* sysdeps/ia64/fpu/w_lgammal_main.c: ...here. Include
<lgamma-compat.h>.
(__ieee754_lgammal): Change to LGFUNC (lgammal). Use CALL_LGAMMA.
(__ieee754_gammal): Define as alias.
* sysdeps/ieee754/ldbl-opt/w_lgamma.c: Move to ....
* sysdeps/ieee754/ldbl-opt/w_lgamma_compat.c: ...here. Include
<math/w_lgamma_compat.c>.
[LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)] (__lgammal_dbl_compat):
Define as alias of __lgamma_compat and use in defining lgammal.
* sysdeps/ieee754/ldbl-opt/w_lgammal.c: Move to ....
* sysdeps/ieee754/ldbl-opt/w_lgamma_compatl.c: ...here. Include
<math/lgamma-compat.h> and <math/w_lgamma_compatl.c>.
(USE_AS_COMPAT): New macro.
(LGAMMA_OLD_VER): Undefine and redefine.
(lgammal): Do not define here.
(gammal): Only define here if [GAMMA_ALIAS].
* conform/linknamespace.pl (@whitelist): Remove signgam.
* sysdeps/nacl/libm.abilist: Update.
* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
Likewise.
* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
Likewise.
* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
2015-11-20 Adhemerval Zanella <adhemerval.zanella@linaro.org>
[BZ #16364]

6
NEWS
View File

@ -42,6 +42,12 @@ Version 2.23
* Optimized string, wcsmbs and memory functions for IBM z13.
Implemented by Stefan Liebler.
* Newly linked programs that define a variable called signgam will no longer
have it set by the lgamma, lgammaf and lgammal functions. Programs that
require signgam to be set by those functions must ensure that they use the
variable provided by the GNU C Library and declared in <math.h>, without
defining their own copy.
* The minimum GCC version that can be used to build this version of the GNU
C Library is GCC 4.7. Older GCC versions, and non-GNU compilers, can
still be used to compile programs using the GNU C Library.

4
conform/linknamespace.pl
View File

@ -40,8 +40,6 @@ close (STDSYMS) || die ("close $stdsyms_file: $!\n");
# The following whitelisted symbols are also allowed for now.
#
# * Bug 15421: lgamma wrongly sets signgam for ISO C.
#
# * Bug 17576: stdin, stdout, stderr only reserved with external
# linkage when stdio.h included (and possibly not then), not
# generally.
@ -52,7 +50,7 @@ close (STDSYMS) || die ("close $stdsyms_file: $!\n");
# * False positive: matherr only used conditionally. matherrf/matherrl are used
# by IA64 too for the same reason.
#
@whitelist = qw(signgam stdin stdout stderr re_syntax_options matherr matherrf
@whitelist = qw(stdin stdout stderr re_syntax_options matherr matherrf
matherrl);
foreach my $sym (@whitelist) {
$stdsyms{$sym} = 1;

2
include/math.h
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@ -6,6 +6,8 @@
/* Now define the internal interfaces. */
extern int __matherr (struct exception *__exc);
extern int __signgam;
# if IS_IN (libc) || IS_IN (libm)
hidden_proto (__finite)
hidden_proto (__isinf)

24
math/Makefile
View File

@ -62,7 +62,8 @@ libm-calls = e_acos e_acosh e_asin e_atan2 e_atanh e_cosh e_exp e_fmod \
s_casinh s_cacosh s_catanh s_csqrt s_cpow s_cproj s_clog10 \
s_fma s_lrint s_llrint s_lround s_llround e_exp10 w_log2 \
s_issignaling $(calls:s_%=m_%) x2y2m1 k_casinh \
gamma_product k_standard lgamma_neg lgamma_product
gamma_product k_standard lgamma_neg lgamma_product \
w_lgamma_compat
dbl-only-routines := branred doasin dosincos halfulp mpa mpatan2 \
mpatan mpexp mplog mpsqrt mptan sincos32 slowexp \
@ -110,8 +111,13 @@ tests = test-matherr test-fenv atest-exp atest-sincos atest-exp2 basic-test \
test-fenv-tls test-fenv-preserve test-fenv-return test-fenvinline \
test-nearbyint-except test-fenv-clear test-signgam-finite \
test-signgam-finite-c99 test-signgam-finite-c11 \
test-nearbyint-except-2 $(tests-static)
tests-static = test-fpucw-static test-fpucw-ieee-static
test-nearbyint-except-2 test-signgam-uchar test-signgam-uchar-init \
test-signgam-uint test-signgam-uint-init test-signgam-ullong \
test-signgam-ullong-init $(tests-static)
tests-static = test-fpucw-static test-fpucw-ieee-static \
test-signgam-uchar-static test-signgam-uchar-init-static \
test-signgam-uint-static test-signgam-uint-init-static \
test-signgam-ullong-static test-signgam-ullong-init-static
# We do the `long double' tests only if this data type is available and
# distinct from `double'.
test-longdouble-yes = test-ldouble test-ildoubl test-ldouble-finite
@ -200,6 +206,18 @@ CPPFLAGS-test-ildoubl.c = -U__LIBC_INTERNAL_MATH_INLINES \
CFLAGS-test-signgam-finite.c = -ffinite-math-only
CFLAGS-test-signgam-finite-c99.c = -ffinite-math-only -std=c99
CFLAGS-test-signgam-finite-c11.c = -ffinite-math-only -std=c11
CFLAGS-test-signgam-uchar.c = -std=c99
CFLAGS-test-signgam-uchar-init.c = -std=c99
CFLAGS-test-signgam-uchar-static.c = -std=c99
CFLAGS-test-signgam-uchar-init-static.c = -std=c99
CFLAGS-test-signgam-uint.c = -std=c99
CFLAGS-test-signgam-uint-init.c = -std=c99
CFLAGS-test-signgam-uint-static.c = -std=c99
CFLAGS-test-signgam-uint-init-static.c = -std=c99
CFLAGS-test-signgam-ullong.c = -std=c99
CFLAGS-test-signgam-ullong-init.c = -std=c99
CFLAGS-test-signgam-ullong-static.c = -std=c99
CFLAGS-test-signgam-ullong-init-static.c = -std=c99
# The -lieee module sets the _LIB_VERSION_ switch to IEEE mode
# for error handling in the -lm functions.

7
math/Versions
View File

@ -203,4 +203,11 @@ libm {
GLIBC_2.18 {
__issignaling; __issignalingf; __issignalingl;
}
GLIBC_2.23 {
# The __signgam name must be exported for the signgam weak alias
# to work. New symbol versions of lgamma* that set __signgam are
# needed to preserve compatibility with old binaries that have a
# dynamic symbol for signgam but not __signgam.
lgamma; lgammaf; lgammal; __signgam;
}
}

73
math/lgamma-compat.h Normal file
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@ -0,0 +1,73 @@
/* ABI compatibility for lgamma functions.
Copyright (C) 2015 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#ifndef LGAMMA_COMPAT_H
#define LGAMMA_COMPAT_H 1
#include <shlib-compat.h>
/* XSI POSIX requires lgamma to set signgam, but ISO C does not permit
this. Namespace issues can be avoided if the functions set
__signgam and signgam is a weak alias, but this only works if both
signgam and __signgam were exported from the glibc version the
program was linked against. Before glibc 2.23, lgamma functions
set signgam which was not a weak alias for __signgam, so old
binaries have dynamic symbols for signgam only and the versions of
lgamma used for old binaries must set both signgam and __signgam.
Those versions also do a check of _LIB_VERSION != _ISOC_ to match
old glibc.
Users of this file define USE_AS_COMPAT to 0 when building the main
version of lgamma, 1 when building the compatibility version. */
#define LGAMMA_OLD_VER GLIBC_2_0
#define LGAMMA_NEW_VER GLIBC_2_23
#define HAVE_LGAMMA_COMPAT SHLIB_COMPAT (libm, LGAMMA_OLD_VER, LGAMMA_NEW_VER)
/* Whether to build this version at all. */
#define BUILD_LGAMMA (HAVE_LGAMMA_COMPAT || !USE_AS_COMPAT)
/* The name to use for this version. */
#if USE_AS_COMPAT
# define LGFUNC(FUNC) FUNC ## _compat
#else
# define LGFUNC(FUNC) FUNC
#endif
/* If there is a compatibility version, gamma (not an ISO C function,
so never a problem for it to set signgam) points directly to it
rather than having separate versions. */
#define GAMMA_ALIAS (USE_AS_COMPAT ? HAVE_LGAMMA_COMPAT : !HAVE_LGAMMA_COMPAT)
/* How to call the underlying lgamma_r function. */
#define CALL_LGAMMA(TYPE, FUNC, ARG) \
({ \
TYPE lgamma_tmp; \
int local_signgam; \
if (USE_AS_COMPAT) \
{ \
lgamma_tmp = FUNC ((ARG), &local_signgam); \
if (_LIB_VERSION != _ISOC_) \
signgam = __signgam = local_signgam; \
} \
else \
lgamma_tmp = FUNC ((ARG), &__signgam); \
lgamma_tmp; \
})
#endif /* lgamma-compat.h. */

71
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@ -0,0 +1,71 @@
/* Test lgamma functions do not set signgam for ISO C.
Copyright (C) 2015 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#undef _LIBC
#undef _GNU_SOURCE
#define _ISOMAC
#include <math.h>
#include <stdio.h>
#define INITVAL ((TYPE) -1 / 3)
#if DO_INIT
TYPE signgam = INITVAL;
#else
TYPE signgam;
#endif
#define RUN_TESTS(FUNC, TYPE) \
do \
{ \
volatile TYPE a, b, c __attribute__ ((unused)); \
a = 0.5; \
b = -0.5; \
signgam = INITVAL; \
c = FUNC (a); \
if (signgam == INITVAL) \
puts ("PASS: " #FUNC " (0.5) setting signgam"); \
else \
{ \
puts ("FAIL: " #FUNC " (0.5) setting signgam"); \
result = 1; \
} \
signgam = INITVAL; \
c = FUNC (b); \
if (signgam == INITVAL) \
puts ("PASS: " #FUNC " (-0.5) setting signgam"); \
else \
{ \
puts ("FAIL: " #FUNC " (-0.5) setting signgam"); \
result = 1; \
} \
} \
while (0)
int
main (void)
{
int result = 0;
RUN_TESTS (lgammaf, float);
RUN_TESTS (lgamma, double);
#ifndef NO_LONG_DOUBLE
RUN_TESTS (lgammal, long double);
#endif
return result;
}

1
math/test-signgam-uchar-init-static.c Normal file
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@ -0,0 +1 @@
#include "test-signgam-uchar-init.c"

3
math/test-signgam-uchar-init.c Normal file
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@ -0,0 +1,3 @@
#define TYPE unsigned char
#define DO_INIT 1
#include "test-signgam-main.c"

1
math/test-signgam-uchar-static.c Normal file
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@ -0,0 +1 @@
#include "test-signgam-uchar.c"

3
math/test-signgam-uchar.c Normal file
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@ -0,0 +1,3 @@
#define TYPE unsigned char
#define DO_INIT 0
#include "test-signgam-main.c"

1
math/test-signgam-uint-init-static.c Normal file
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@ -0,0 +1 @@
#include "test-signgam-uint-init.c"

3
math/test-signgam-uint-init.c Normal file
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@ -0,0 +1,3 @@
#define TYPE unsigned int
#define DO_INIT 1
#include "test-signgam-main.c"

1
math/test-signgam-uint-static.c Normal file
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@ -0,0 +1 @@
#include "test-signgam-uint.c"

3
math/test-signgam-uint.c Normal file
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@ -0,0 +1,3 @@
#define TYPE unsigned int
#define DO_INIT 0
#include "test-signgam-main.c"

1
math/test-signgam-ullong-init-static.c Normal file
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@ -0,0 +1 @@
#include "test-signgam-ullong-init.c"

3
math/test-signgam-ullong-init.c Normal file
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@ -0,0 +1,3 @@
#define TYPE unsigned long long int
#define DO_INIT 1
#include "test-signgam-main.c"

1
math/test-signgam-ullong-static.c Normal file
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@ -0,0 +1 @@
#include "test-signgam-ullong.c"

3
math/test-signgam-ullong.c Normal file
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@ -0,0 +1,3 @@
#define TYPE unsigned long long int
#define DO_INIT 0
#include "test-signgam-main.c"

51
math/w_lgamma.c
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@ -1,49 +1,2 @@
/* @(#)w_lgamma.c 5.1 93/09/24 */
/*
* ====================================================
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
*
* Developed at SunPro, a Sun Microsystems, Inc. business.
* Permission to use, copy, modify, and distribute this
* software is freely granted, provided that this notice
* is preserved.
* ====================================================
*/
/* double lgamma(double x)
* Return the logarithm of the Gamma function of x.
*
* Method: call __ieee754_lgamma_r
*/
#include <math.h>
#include <math_private.h>
double
__lgamma(double x)
{
int local_signgam = 0;
double y = __ieee754_lgamma_r(x,
_LIB_VERSION != _ISOC_
/* ISO C99 does not define the
global variable. */
? &signgam
: &local_signgam);
if(__builtin_expect(!isfinite(y), 0)
&& isfinite(x) && _LIB_VERSION != _IEEE_)
return __kernel_standard(x, x,
__floor(x)==x&&x<=0.0
? 15 /* lgamma pole */
: 14); /* lgamma overflow */
return y;
}
weak_alias (__lgamma, lgamma)
strong_alias (__lgamma, __gamma)
weak_alias (__gamma, gamma)
#ifdef NO_LONG_DOUBLE
strong_alias (__lgamma, __lgammal)
weak_alias (__lgamma, lgammal)
strong_alias (__gamma, __gammal)
weak_alias (__gamma, gammal)
#endif
#define USE_AS_COMPAT 0
#include <w_lgamma_main.c>

2
math/w_lgamma_compat.c Normal file
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@ -0,0 +1,2 @@
#define USE_AS_COMPAT 1
#include <w_lgamma_main.c>

2
math/w_lgamma_compatf.c Normal file
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@ -0,0 +1,2 @@
#define USE_AS_COMPAT 1
#include <w_lgammaf_main.c>

2
math/w_lgamma_compatl.c Normal file
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@ -0,0 +1,2 @@
#define USE_AS_COMPAT 1
#include <w_lgammal_main.c>

59
math/w_lgamma_main.c Normal file
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@ -0,0 +1,59 @@
/* @(#)w_lgamma.c 5.1 93/09/24 */
/*
* ====================================================
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
*
* Developed at SunPro, a Sun Microsystems, Inc. business.
* Permission to use, copy, modify, and distribute this
* software is freely granted, provided that this notice
* is preserved.
* ====================================================
*/
/* double lgamma(double x)
* Return the logarithm of the Gamma function of x.
*
* Method: call __ieee754_lgamma_r
*/
#include <math.h>
#include <math_private.h>
#include <lgamma-compat.h>
#if BUILD_LGAMMA
double
LGFUNC (__lgamma) (double x)
{
double y = CALL_LGAMMA (double, __ieee754_lgamma_r, x);
if(__builtin_expect(!isfinite(y), 0)
&& isfinite(x) && _LIB_VERSION != _IEEE_)
return __kernel_standard(x, x,
__floor(x)==x&&x<=0.0
? 15 /* lgamma pole */
: 14); /* lgamma overflow */
return y;
}
# if USE_AS_COMPAT
compat_symbol (libm, __lgamma_compat, lgamma, LGAMMA_OLD_VER);
# ifdef NO_LONG_DOUBLE
strong_alias (__lgamma_compat, __lgammal_compat)
compat_symbol (libm, __lgammal_compat, lgammal, LGAMMA_OLD_VER);
# endif
# else
versioned_symbol (libm, __lgamma, lgamma, LGAMMA_NEW_VER);
# ifdef NO_LONG_DOUBLE
strong_alias (__lgamma, __lgammal)
versioned_symbol (libm, __lgammal, lgammal, LGAMMA_NEW_VER);
# endif
# endif
# if GAMMA_ALIAS
strong_alias (LGFUNC (__lgamma), __gamma)
weak_alias (__gamma, gamma)
# ifdef NO_LONG_DOUBLE
strong_alias (__gamma, __gammal)
weak_alias (__gamma, gammal)
# endif
# endif
#endif

42
math/w_lgammaf.c
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@ -1,40 +1,2 @@
/* w_lgammaf.c -- float version of w_lgamma.c.
* Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
*/
/*
* ====================================================
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
*
* Developed at SunPro, a Sun Microsystems, Inc. business.
* Permission to use, copy, modify, and distribute this
* software is freely granted, provided that this notice
* is preserved.
* ====================================================
*/
#include <math.h>
#include <math_private.h>
float
__lgammaf(float x)
{
int local_signgam = 0;
float y = __ieee754_lgammaf_r(x,
_LIB_VERSION != _ISOC_
/* ISO C99 does not define the
global variable. */
? &signgam
: &local_signgam);
if(__builtin_expect(!isfinite(y), 0)
&& isfinite(x) && _LIB_VERSION != _IEEE_)
return __kernel_standard_f(x, x,
__floorf(x)==x&&x<=0.0f
? 115 /* lgamma pole */
: 114); /* lgamma overflow */
return y;
}
weak_alias (__lgammaf, lgammaf)
strong_alias (__lgammaf, __gammaf)
weak_alias (__gammaf, gammaf)
#define USE_AS_COMPAT 0
#include <w_lgammaf_main.c>

44
math/w_lgammaf_main.c Normal file
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@ -0,0 +1,44 @@
/* w_lgammaf.c -- float version of w_lgamma.c.
* Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
*/
/*
* ====================================================
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
*
* Developed at SunPro, a Sun Microsystems, Inc. business.
* Permission to use, copy, modify, and distribute this
* software is freely granted, provided that this notice
* is preserved.
* ====================================================
*/
#include <math.h>
#include <math_private.h>
#include <lgamma-compat.h>
#if BUILD_LGAMMA
float
LGFUNC (__lgammaf) (float x)
{
float y = CALL_LGAMMA (float, __ieee754_lgammaf_r, x);
if(__builtin_expect(!isfinite(y), 0)
&& isfinite(x) && _LIB_VERSION != _IEEE_)
return __kernel_standard_f(x, x,
__floorf(x)==x&&x<=0.0f
? 115 /* lgamma pole */
: 114); /* lgamma overflow */
return y;
}
# if USE_AS_COMPAT
compat_symbol (libm, __lgammaf_compat, lgammaf, LGAMMA_OLD_VER);
# else
versioned_symbol (libm, __lgammaf, lgammaf, LGAMMA_NEW_VER);
# endif
# if GAMMA_ALIAS
strong_alias (LGFUNC (__lgammaf), __gammaf)
weak_alias (__gammaf, gammaf)
# endif
#endif

49
math/w_lgammal.c
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@ -1,47 +1,2 @@
/* w_lgammal.c -- long double version of w_lgamma.c.
* Conversion to long double by Ulrich Drepper,
* Cygnus Support, drepper@cygnus.com.
*/
/*
* ====================================================
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
*
* Developed at SunPro, a Sun Microsystems, Inc. business.
* Permission to use, copy, modify, and distribute this
* software is freely granted, provided that this notice
* is preserved.
* ====================================================
*/
/* long double lgammal(long double x)
* Return the logarithm of the Gamma function of x.
*
* Method: call __ieee754_lgammal_r
*/
#include <math.h>
#include <math_private.h>
long double
__lgammal(long double x)
{
int local_signgam = 0;
long double y = __ieee754_lgammal_r(x,
_LIB_VERSION != _ISOC_
/* ISO C99 does not define the
global variable. */
? &signgam
: &local_signgam);
if(__builtin_expect(!isfinite(y), 0)
&& isfinite(x) && _LIB_VERSION != _IEEE_)
return __kernel_standard_l(x, x,
__floorl(x)==x&&x<=0.0L
? 215 /* lgamma pole */
: 214); /* lgamma overflow */
return y;
}
weak_alias (__lgammal, lgammal)
strong_alias (__lgammal, __gammal)
weak_alias (__gammal, gammal)
#define USE_AS_COMPAT 0
#include <w_lgammal_main.c>

51
math/w_lgammal_main.c Normal file
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@ -0,0 +1,51 @@
/* w_lgammal.c -- long double version of w_lgamma.c.
* Conversion to long double by Ulrich Drepper,
* Cygnus Support, drepper@cygnus.com.
*/
/*
* ====================================================
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
*
* Developed at SunPro, a Sun Microsystems, Inc. business.
* Permission to use, copy, modify, and distribute this
* software is freely granted, provided that this notice
* is preserved.
* ====================================================
*/
/* long double lgammal(long double x)
* Return the logarithm of the Gamma function of x.
*
* Method: call __ieee754_lgammal_r
*/
#include <math.h>
#include <math_private.h>
#include <lgamma-compat.h>
#if BUILD_LGAMMA
long double
LGFUNC (__lgammal) (long double x)
{
long double y = CALL_LGAMMA (long double, __ieee754_lgammal_r, x);
if(__builtin_expect(!isfinite(y), 0)
&& isfinite(x) && _LIB_VERSION != _IEEE_)
return __kernel_standard_l(x, x,
__floorl(x)==x&&x<=0.0L
? 215 /* lgamma pole */
: 214); /* lgamma overflow */
return y;
}
# if USE_AS_COMPAT
compat_symbol (libm, __lgammal_compat, lgammal, LGAMMA_OLD_VER);
# else
versioned_symbol (libm, __lgammal, lgammal, LGAMMA_NEW_VER);
# endif
# if GAMMA_ALIAS
strong_alias (LGFUNC (__lgammal), __gammal)
weak_alias (__gammal, gammal)
# endif
#endif

42
sysdeps/ia64/fpu/lgamma-compat.h Normal file
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@ -0,0 +1,42 @@
/* ABI compatibility for lgamma functions. ia64 version.
Copyright (C) 2015 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#ifndef IA64_LGAMMA_COMPAT_H
#define IA64_LGAMMA_COMPAT_H 1
#include <math/lgamma-compat.h>
#undef LGFUNC
#if USE_AS_COMPAT
# define LGFUNC(FUNC) __ ## FUNC ## _compat
#else
# define LGFUNC(FUNC) __ieee754_ ## FUNC
#endif
#undef CALL_LGAMMA
#define CALL_LGAMMA(TYPE, FUNC, ARG) \
({ \
TYPE lgamma_tmp; \
extern int __signgam, signgam; \
lgamma_tmp = FUNC ((ARG), &__signgam, sizeof (__signgam)); \
if (USE_AS_COMPAT) \
signgam = __signgam; \
lgamma_tmp; \
})
#endif /* lgamma-compat.h. */

27
sysdeps/ia64/fpu/w_lgamma.c → sysdeps/ia64/fpu/w_lgamma_main.c
View File

@ -53,28 +53,21 @@
#include "libm_support.h"
#include <lgamma-compat.h>
extern double __libm_lgamma(double /*x*/, int* /*signgam*/, int /*signgamsz*/);
double __ieee754_lgamma(double x)
double LGFUNC (lgamma) (double x)
{
#ifdef __POSIX__
extern int signgam;
#else
int signgam;
#endif
return __libm_lgamma(x, &signgam, sizeof(signgam));
return CALL_LGAMMA (double, __libm_lgamma, x);
}
weak_alias (__ieee754_lgamma, lgamma)
double __ieee754_gamma(double x)
{
#ifdef __POSIX__
extern int signgam;
#if USE_AS_COMPAT
compat_symbol (libm, __lgammaf_compat, lgammaf, LGAMMA_OLD_VER);
#else
int signgam;
versioned_symbol (libm, __ieee754_lgammaf, lgammaf, LGAMMA_NEW_VER);
#endif
#if GAMMA_ALIAS
strong_alias (LGFUNC (lgammaf), __ieee754_gammaf)
weak_alias (__ieee754_gammaf, gammaf)
#endif
return __libm_lgamma(x, &signgam, sizeof(signgam));
}
weak_alias (__ieee754_gamma, gamma)

25
sysdeps/ia64/fpu/w_lgammaf.c → sysdeps/ia64/fpu/w_lgammaf_main.c
View File

@ -53,28 +53,21 @@
#include "libm_support.h"
#include <lgamma-compat.h>
extern float __libm_lgammaf(float /*x*/, int* /*signgam*/, int /*signgamsz*/);
float __ieee754_lgammaf(float x)
float LGFUNC (lgammaf) (float x)
{
#ifdef __POSIX__
extern int signgam;
#else
int signgam;
#endif
return __libm_lgammaf(x, &signgam, sizeof(signgam));
return CALL_LGAMMA (float, __libm_lgammaf, x);
}
weak_alias (__ieee754_lgammaf, lgammaf)
float __ieee754_gammaf(float x)
{
#ifdef __POSIX__
extern int signgam;
#if USE_AS_COMPAT
compat_symbol (libm, __lgammaf_compat, lgammaf, LGAMMA_OLD_VER);
#else
int signgam;
versioned_symbol (libm, __ieee754_lgammaf, lgammaf, LGAMMA_NEW_VER);
#endif
return __libm_lgammaf(x, &signgam, sizeof(signgam));
}
#if GAMMA_ALIAS
strong_alias (LGFUNC (lgammaf), __ieee754_gammaf)
weak_alias (__ieee754_gammaf, gammaf)
#endif

25
sysdeps/ia64/fpu/w_lgammal.c → sysdeps/ia64/fpu/w_lgammal_main.c
View File

@ -55,25 +55,18 @@
extern double __libm_lgammal(long double /*x*/, int* /*signgam*/, int /*signgamsz*/);
#include <lgamma-compat.h>
long double __ieee754_lgammal(long double x)
long double LGFUNC (lgammal) (long double x)
{
#ifdef __POSIX__
extern int signgam;
#else
int signgam;
#endif
return __libm_lgammal(x, &signgam, sizeof(signgam));
return CALL_LGAMMA (long double, __libm_lgammal, x);
}
weak_alias (__ieee754_lgammal, lgammal)
long double __ieee754_gammal(long double x)
{
#ifdef __POSIX__
extern int signgam;
#if USE_AS_COMPAT
compat_symbol (libm, __lgammal_compat, lgammal, LGAMMA_OLD_VER);
#else
int signgam;
versioned_symbol (libm, __ieee754_lgammal, lgammal, LGAMMA_NEW_VER);
#endif
return __libm_lgammal(x, &signgam, sizeof(signgam));
}
#if GAMMA_ALIAS
strong_alias (LGFUNC (lgammal), __ieee754_gammal)
weak_alias (__ieee754_gammal, gammal)
#endif

6
sysdeps/ieee754/ldbl-opt/w_lgamma.c
View File

@ -1,6 +0,0 @@
#include <math_ldbl_opt.h>
#include <math/w_lgamma.c>
#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
compat_symbol (libm, __lgamma, lgammal, GLIBC_2_0);
compat_symbol (libm, __gamma, gammal, GLIBC_2_0);
#endif

7
sysdeps/ieee754/ldbl-opt/w_lgamma_compat.c Normal file
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@ -0,0 +1,7 @@
#include <math_ldbl_opt.h>
#include <math/w_lgamma_compat.c>
#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
strong_alias (__lgamma_compat, __lgammal_dbl_compat)
compat_symbol (libm, __lgammal_dbl_compat, lgammal, GLIBC_2_0);
compat_symbol (libm, __gamma, gammal, GLIBC_2_0);
#endif

11
sysdeps/ieee754/ldbl-opt/w_lgamma_compatl.c Normal file
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@ -0,0 +1,11 @@
#include <math_ldbl_opt.h>
#undef weak_alias
#define weak_alias(n,a)
#define USE_AS_COMPAT 1
#include <math/lgamma-compat.h>
#undef LGAMMA_OLD_VER
#define LGAMMA_OLD_VER LONG_DOUBLE_COMPAT_VERSION
#include <math/w_lgamma_compatl.c>
#if GAMMA_ALIAS
long_double_symbol (libm, __gammal, gammal);
#endif

6
sysdeps/ieee754/ldbl-opt/w_lgammal.c
View File

@ -1,6 +0,0 @@
#include <math_ldbl_opt.h>
#undef weak_alias
#define weak_alias(n,a)
#include <math/w_lgammal.c>
long_double_symbol (libm, __lgammal, lgammal);
long_double_symbol (libm, __gammal, gammal);

3
sysdeps/ieee754/s_signgam.c
View File

@ -1,3 +1,4 @@
#include <math.h>
#include <math_private.h>
int signgam;
int __signgam = 0;
weak_alias (__signgam, signgam)

5
sysdeps/nacl/libm.abilist
View File

@ -367,3 +367,8 @@ GLIBC_2.22 y1l F
GLIBC_2.22 yn F
GLIBC_2.22 ynf F
GLIBC_2.22 ynl F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F

5
sysdeps/unix/sysv/linux/aarch64/libm.abilist
View File

@ -398,3 +398,8 @@ GLIBC_2.18 GLIBC_2.18 A
GLIBC_2.18 __issignaling F
GLIBC_2.18 __issignalingf F
GLIBC_2.18 __issignalingl F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F

5
sysdeps/unix/sysv/linux/alpha/libm.abilist
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@ -408,6 +408,11 @@ GLIBC_2.2 feraiseexcept F
GLIBC_2.2 fesetenv F
GLIBC_2.2 fesetexceptflag F
GLIBC_2.2 feupdateenv F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F
GLIBC_2.3.4 GLIBC_2.3.4 A
GLIBC_2.3.4 __c1_cabsf F
GLIBC_2.3.4 __c1_cacosf F

5
sysdeps/unix/sysv/linux/arm/libm.abilist
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@ -56,6 +56,11 @@ GLIBC_2.15 __ynf_finite F
GLIBC_2.18 GLIBC_2.18 A
GLIBC_2.18 __issignaling F
GLIBC_2.18 __issignalingf F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F
GLIBC_2.4 GLIBC_2.4 A
GLIBC_2.4 _LIB_VERSION D 0x4
GLIBC_2.4 __clog10 F

5
sysdeps/unix/sysv/linux/hppa/libm.abilist
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@ -368,5 +368,10 @@ GLIBC_2.2 y1l F
GLIBC_2.2 yn F
GLIBC_2.2 ynf F
GLIBC_2.2 ynl F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F
GLIBC_2.4 GLIBC_2.4 A
GLIBC_2.4 exp2l F

5
sysdeps/unix/sysv/linux/i386/libm.abilist
View File

@ -410,4 +410,9 @@ GLIBC_2.2 feraiseexcept F
GLIBC_2.2 fesetenv F
GLIBC_2.2 fesetexceptflag F
GLIBC_2.2 feupdateenv F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F
GLIBC_2.4 GLIBC_2.4 A

5
sysdeps/unix/sysv/linux/ia64/libm.abilist
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@ -339,4 +339,9 @@ GLIBC_2.2 ynl F
GLIBC_2.2.3 GLIBC_2.2.3 A
GLIBC_2.2.3 matherrf F
GLIBC_2.2.3 matherrl F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F
GLIBC_2.4 GLIBC_2.4 A

5
sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist
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@ -56,6 +56,11 @@ GLIBC_2.15 __ynf_finite F
GLIBC_2.18 GLIBC_2.18 A
GLIBC_2.18 __issignaling F
GLIBC_2.18 __issignalingf F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F
GLIBC_2.4 GLIBC_2.4 A
GLIBC_2.4 _LIB_VERSION D 0x4
GLIBC_2.4 __clog10 F

5
sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist
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@ -408,4 +408,9 @@ GLIBC_2.2 feraiseexcept F
GLIBC_2.2 fesetenv F
GLIBC_2.2 fesetexceptflag F
GLIBC_2.2 feupdateenv F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F
GLIBC_2.4 GLIBC_2.4 A

5
sysdeps/unix/sysv/linux/microblaze/libm.abilist
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@ -367,3 +367,8 @@ GLIBC_2.18 y1l F
GLIBC_2.18 yn F
GLIBC_2.18 ynf F
GLIBC_2.18 ynl F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F

5
sysdeps/unix/sysv/linux/mips/mips32/libm.abilist
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@ -369,6 +369,11 @@ GLIBC_2.2 tgammal F
GLIBC_2.2 trunc F
GLIBC_2.2 truncf F
GLIBC_2.2 truncl F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F
GLIBC_2.4 GLIBC_2.4 A
GLIBC_2.4 exp2l F
_gp_disp _gp_disp A

5
sysdeps/unix/sysv/linux/mips/mips64/libm.abilist
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@ -400,4 +400,9 @@ GLIBC_2.2 tgammal F
GLIBC_2.2 trunc F
GLIBC_2.2 truncf F
GLIBC_2.2 truncl F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F
GLIBC_2.4 GLIBC_2.4 A

5
sysdeps/unix/sysv/linux/nios2/libm.abilist
View File

@ -367,3 +367,8 @@ GLIBC_2.21 y1l F
GLIBC_2.21 yn F
GLIBC_2.21 ynf F
GLIBC_2.21 ynl F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F

5
sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist
View File

@ -409,6 +409,11 @@ GLIBC_2.2 feraiseexcept F
GLIBC_2.2 fesetenv F
GLIBC_2.2 fesetexceptflag F
GLIBC_2.2 feupdateenv F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F
GLIBC_2.4 GLIBC_2.4 A
GLIBC_2.4 __clog10l F
GLIBC_2.4 __finitel F

5
sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist
View File

@ -408,6 +408,11 @@ GLIBC_2.2 feraiseexcept F
GLIBC_2.2 fesetenv F
GLIBC_2.2 fesetexceptflag F
GLIBC_2.2 feupdateenv F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F
GLIBC_2.4 GLIBC_2.4 A
GLIBC_2.4 __clog10l F
GLIBC_2.4 __finitel F

5
sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist
View File

@ -403,3 +403,8 @@ GLIBC_2.18 GLIBC_2.18 A
GLIBC_2.18 __issignaling F
GLIBC_2.18 __issignalingf F
GLIBC_2.18 __issignalingl F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F

5
sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist
View File

@ -84,6 +84,11 @@ GLIBC_2.18 GLIBC_2.18 A
GLIBC_2.18 __issignaling F
GLIBC_2.18 __issignalingf F
GLIBC_2.18 __issignalingl F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F
GLIBC_2.3 GLIBC_2.3 A
GLIBC_2.3 _LIB_VERSION D 0x4
GLIBC_2.3 __clog10 F

5
sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist
View File

@ -398,6 +398,11 @@ GLIBC_2.2 GLIBC_2.2 A
GLIBC_2.2 fedisableexcept F
GLIBC_2.2 feenableexcept F
GLIBC_2.2 fegetexcept F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F
GLIBC_2.4 GLIBC_2.4 A
GLIBC_2.4 __clog10l F
GLIBC_2.4 __finitel F

5
sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist
View File

@ -396,6 +396,11 @@ GLIBC_2.2 y1l F
GLIBC_2.2 yn F
GLIBC_2.2 ynf F
GLIBC_2.2 ynl F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F
GLIBC_2.4 GLIBC_2.4 A
GLIBC_2.4 __clog10l F
GLIBC_2.4 __finitel F

5
sysdeps/unix/sysv/linux/sh/libm.abilist
View File

@ -368,5 +368,10 @@ GLIBC_2.2 y1l F
GLIBC_2.2 yn F
GLIBC_2.2 ynf F
GLIBC_2.2 ynl F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F
GLIBC_2.4 GLIBC_2.4 A
GLIBC_2.4 exp2l F

5
sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist
View File

@ -400,6 +400,11 @@ GLIBC_2.2 feraiseexcept F
GLIBC_2.2 fesetenv F
GLIBC_2.2 fesetexceptflag F
GLIBC_2.2 feupdateenv F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F
GLIBC_2.4 GLIBC_2.4 A
GLIBC_2.4 __clog10l F
GLIBC_2.4 __finitel F

5
sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist
View File

@ -399,4 +399,9 @@ GLIBC_2.2 y1l F
GLIBC_2.2 yn F
GLIBC_2.2 ynf F
GLIBC_2.2 ynl F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F
GLIBC_2.4 GLIBC_2.4 A

5
sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist
View File

@ -368,3 +368,8 @@ GLIBC_2.15 __ynf_finite F
GLIBC_2.18 GLIBC_2.18 A
GLIBC_2.18 __issignaling F
GLIBC_2.18 __issignalingf F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F

5
sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist
View File

@ -368,3 +368,8 @@ GLIBC_2.15 __ynf_finite F
GLIBC_2.18 GLIBC_2.18 A
GLIBC_2.18 __issignaling F
GLIBC_2.18 __issignalingf F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F

5
sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist
View File

@ -368,3 +368,8 @@ GLIBC_2.15 __ynf_finite F
GLIBC_2.18 GLIBC_2.18 A
GLIBC_2.18 __issignaling F
GLIBC_2.18 __issignalingf F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F

5
sysdeps/unix/sysv/linux/x86_64/64/libm.abilist
View File

@ -399,4 +399,9 @@ GLIBC_2.2.5 y1l F
GLIBC_2.2.5 yn F
GLIBC_2.2.5 ynf F
GLIBC_2.2.5 ynl F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F
GLIBC_2.4 GLIBC_2.4 A

5
sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist
View File

@ -398,3 +398,8 @@ GLIBC_2.18 GLIBC_2.18 A
GLIBC_2.18 __issignaling F
GLIBC_2.18 __issignalingf F
GLIBC_2.18 __issignalingl F
GLIBC_2.23 GLIBC_2.23 A
GLIBC_2.23 __signgam D 0x4
GLIBC_2.23 lgamma F
GLIBC_2.23 lgammaf F
GLIBC_2.23 lgammal F