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Obsolete matherr, _LIB_VERSION, libieee.a.

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This patch obsoletes support for SVID libm error handling (the system
where a user-defined function matherr is called on a libm function
error; only enabled if you also set _LIB_VERSION = _SVID_ or
_LIB_VERSION = _XOPEN_) and the use of the _LIB_VERSION global
variable to control libm error handling.  matherr and _LIB_VERSION are
made into compat symbols, not supported for new ports or for static
linking.  The libieee.a object file (which sets _LIB_VERSION = _IEEE_,
so disabling errno setting for some functions) is also removed, and
all the related definitions are removed from math.h.

The manual already recommends against using matherr, and it's already
not supported for _Float128 functions (those use new wrappers that
don't support matherr, only errno) - this patch means that it becomes
possible to e.g. add sinf32 as an alias to sinf without that resulting
in undesired matherr support in sinf32 for existing glibc ports.
matherr support is not part of any standard supported by glibc (it was
removed in XPG4).

Because matherr is a function to be defined by the user, of course
user programs defining such a function will still continue to link; it
just quietly won't be used.  If they try to write to the library's
copy of _LIB_VERSION to enable SVID error handling, however, they will
get a link error (but if they define their own _LIB_VERSION variable,
they won't).

I expect the most likely case of build failures from this patch to be
programs with unconditional cargo-culted uses of -lieee (based on a
notion of "I want IEEE floating point", not any actual requirement for
that library).

Ideally, the new-port-or-static-linking case would use the new
wrappers used for _Float128.  This is not implemented in this patch,
because of the complication of architecture-specific (powerpc32 and
sparc) sqrt wrappers that use _LIB_VERSION and __kernel_standard
directly.  Thus, the old wrappers and __kernel_standard are still
built unconditionally, and _LIB_VERSION still exists in static libm.
But when the old wrappers and __kernel_standard are built in the
non-compat case, _LIB_VERSION and matherr are defined as macros so
code to support those features isn't actually built into static libm
or new ports' shared libm after this patch.

I intend to move to the new wrappers for static libm and new ports in
followup patches.  I believe the sqrt wrappers for powerpc32 and sparc
can reasonably be removed.  GCC already optimizes the normal case of
sqrt by generating code that uses a hardware instruction and only
calls the sqrt function if the argument was negative (if
-fno-math-errno, of course, it just uses the hardware instruction
without any check for negative argument being needed).  Thus those
wrappers will only actually get called in the case of negative
arguments, which is not a case it makes sense to optimize for.  But
even without removing the powerpc32 and sparc wrappers it should still
be possible to move to the new wrappers for static libm and new ports,
just without having those dubious architecture-specific optimizations
in static libm.

Everything said about matherr equally applies to matherrf and matherrl
(IA64-specific, undocumented), except that the structure of IA64 libm
means it won't be converted to using the new wrappers (it doesn't use
the old ones either, but its own error-handling code instead).

As with other tests of compat symbols, I expect test-matherr and
test-matherr-2 to need to become appropriately conditional once we
have a system for disabling such tests for ports too new to have the
relevant symbols.

Tested for x86_64 and x86, and with build-many-glibcs.py.

	* math/math.h [__USE_MISC] (_LIB_VERSION_TYPE): Remove.
	[__USE_MISC] (_LIB_VERSION): Likewise.
	[__USE_MISC] (struct exception): Likewise.
	[__USE_MISC] (matherr): Likewise.
	[__USE_MISC] (DOMAIN): Likewise.
	[__USE_MISC] (SING): Likewise.
	[__USE_MISC] (OVERFLOW): Likewise.
	[__USE_MISC] (UNDERFLOW): Likewise.
	[__USE_MISC] (TLOSS): Likewise.
	[__USE_MISC] (PLOSS): Likewise.
	[__USE_MISC] (HUGE): Likewise.
	[__USE_XOPEN] (MAXFLOAT): Define even if [__USE_MISC].
	* math/math-svid-compat.h: New file.
	* conform/linknamespace.pl (@whitelist): Remove matherr, matherrf
	and matherrl.
	* include/math.h [!_ISOMAC] (__matherr): Remove.
	* manual/arith.texi (FP Exceptions): Do not document matherr.
	* math/Makefile (tests): Change test-matherr to test-matherr-3.
	(tests-internal): New variable.
	(install-lib): Do not add libieee.a.
	(non-lib.a): Likewise.
	(extra-objs): Do not add libieee.a and ieee-math.o.
	(CPPFLAGS-s_lib_version.c): Remove variable.
	($(objpfx)libieee.a): Remove rule.
	($(addprefix $(objpfx), $(tests-internal)): Depend on $(libm).
	* math/ieee-math.c: Remove.
	* math/libm-test-support.c (matherr): Remove.
	* math/test-matherr.c: Use <support/test-driver.c>.  Add copyright
	and license notices.  Include <math-svid-compat.h> and
	<shlib-compat.h>.
	(matherr): Undefine as macro.  Use compat_symbol_reference.
	(_LIB_VERSION): Likewise.
	* math/test-matherr-2.c: New file.
	* math/test-matherr-3.c: Likewise.
	* sysdeps/generic/math_private.h (__kernel_standard): Remove
	declaration.
	(__kernel_standard_f): Likewise.
	(__kernel_standard_l): Likewise.
	* sysdeps/ieee754/s_lib_version.c: Do not include <math.h> or
	<math_private.h>.  Include <math-svid-compat.h>.
	(_LIB_VERSION): Undefine as macro.
	(_LIB_VERSION_INTERNAL): Always initialize to _POSIX_.  Define
	only if [LIBM_SVID_COMPAT || !defined SHARED].  If
	[LIBM_SVID_COMPAT], use compat_symbol.
	* sysdeps/ieee754/s_matherr.c: Do not include <math.h> or
	<math_private.h>.  Include <math-svid-compat.h>.
	(matherr): Undefine as macro.
	(__matherr): Define only if [LIBM_SVID_COMPAT].  Use
	compat_symbol.
	* sysdeps/ia64/fpu/libm_error.c: Include <math-svid-compat.h>.
	[_LIBC && LIBM_SVID_COMPAT] (matherrf): Use
	compat_symbol_reference.
	[_LIBC && LIBM_SVID_COMPAT] (matherrl): Likewise.
	[_LIBC && !LIBM_SVID_COMPAT] (matherrf): Define as macro.
	[_LIBC && !LIBM_SVID_COMPAT] (matherrl): Likewise.
	* sysdeps/ia64/fpu/libm_support.h: Include <math-svid-compat.h>.
	(MATHERR_D): Remove declaration.
	[!_LIBC] (_LIB_VERSION_TYPE): Likewise
	[!LIBM_BUILD] (_LIB_VERSIONIMF): Likewise.
	[LIBM_BUILD] (pmatherrf): Likewise.
	[LIBM_BUILD] (pmatherr): Likewise.
	[LIBM_BUILD] (pmatherrl): Likewise.
	(DOMAIN): Likewise.
	(SING): Likewise.
	(OVERFLOW): Likewise.
	(UNDERFLOW): Likewise.
	(TLOSS): Likewise.
	(PLOSS): Likewise.
	* sysdeps/ia64/fpu/s_matherrf.c: Include <math-svid-compat.h>.
	(__matherrf): Define only if [LIBM_SVID_COMPAT].  Use
	compat_symbol.
	* sysdeps/ia64/fpu/s_matherrl.c: Include <math-svid-compat.h>.
	(__matherrl): Define only if [LIBM_SVID_COMPAT].  Use
	compat_symbol.
	* math/lgamma-compat.h: Include <math-svid-compat.h>.
	* math/w_acos_compat.c: Likewise.
	* math/w_acosf_compat.c: Likewise.
	* math/w_acosh_compat.c: Likewise.
	* math/w_acoshf_compat.c: Likewise.
	* math/w_acoshl_compat.c: Likewise.
	* math/w_acosl_compat.c: Likewise.
	* math/w_asin_compat.c: Likewise.
	* math/w_asinf_compat.c: Likewise.
	* math/w_asinl_compat.c: Likewise.
	* math/w_atan2_compat.c: Likewise.
	* math/w_atan2f_compat.c: Likewise.
	* math/w_atan2l_compat.c: Likewise.
	* math/w_atanh_compat.c: Likewise.
	* math/w_atanhf_compat.c: Likewise.
	* math/w_atanhl_compat.c: Likewise.
	* math/w_cosh_compat.c: Likewise.
	* math/w_coshf_compat.c: Likewise.
	* math/w_coshl_compat.c: Likewise.
	* math/w_exp10_compat.c: Likewise.
	* math/w_exp10f_compat.c: Likewise.
	* math/w_exp10l_compat.c: Likewise.
	* math/w_exp2_compat.c: Likewise.
	* math/w_exp2f_compat.c: Likewise.
	* math/w_exp2l_compat.c: Likewise.
	* math/w_fmod_compat.c: Likewise.
	* math/w_fmodf_compat.c: Likewise.
	* math/w_fmodl_compat.c: Likewise.
	* math/w_hypot_compat.c: Likewise.
	* math/w_hypotf_compat.c: Likewise.
	* math/w_hypotl_compat.c: Likewise.
	* math/w_j0_compat.c: Likewise.
	* math/w_j0f_compat.c: Likewise.
	* math/w_j0l_compat.c: Likewise.
	* math/w_j1_compat.c: Likewise.
	* math/w_j1f_compat.c: Likewise.
	* math/w_j1l_compat.c: Likewise.
	* math/w_jn_compat.c: Likewise.
	* math/w_jnf_compat.c: Likewise.
	* math/w_jnl_compat.c: Likewise.
	* math/w_lgamma_main.c: Likewise.
	* math/w_lgamma_r_compat.c: Likewise.
	* math/w_lgammaf_main.c: Likewise.
	* math/w_lgammaf_r_compat.c: Likewise.
	* math/w_lgammal_main.c: Likewise.
	* math/w_lgammal_r_compat.c: Likewise.
	* math/w_log10_compat.c: Likewise.
	* math/w_log10f_compat.c: Likewise.
	* math/w_log10l_compat.c: Likewise.
	* math/w_log2_compat.c: Likewise.
	* math/w_log2f_compat.c: Likewise.
	* math/w_log2l_compat.c: Likewise.
	* math/w_log_compat.c: Likewise.
	* math/w_logf_compat.c: Likewise.
	* math/w_logl_compat.c: Likewise.
	* math/w_pow_compat.c: Likewise.
	* math/w_powf_compat.c: Likewise.
	* math/w_powl_compat.c: Likewise.
	* math/w_remainder_compat.c: Likewise.
	* math/w_remainderf_compat.c: Likewise.
	* math/w_remainderl_compat.c: Likewise.
	* math/w_scalb_compat.c: Likewise.
	* math/w_scalbf_compat.c: Likewise.
	* math/w_scalbl_compat.c: Likewise.
	* math/w_sinh_compat.c: Likewise.
	* math/w_sinhf_compat.c: Likewise.
	* math/w_sinhl_compat.c: Likewise.
	* math/w_sqrt_compat.c: Likewise.
	* math/w_sqrtf_compat.c: Likewise.
	* math/w_sqrtl_compat.c: Likewise.
	* math/w_tgamma_compat.c: Likewise.
	* math/w_tgammaf_compat.c: Likewise.
	* math/w_tgammal_compat.c: Likewise.
	* sysdeps/ieee754/dbl-64/w_exp_compat.c: Likewise.
	* sysdeps/ieee754/flt-32/w_expf_compat.c: Likewise.
	* sysdeps/ieee754/k_standard.c: Likewise.
	* sysdeps/ieee754/k_standardf.c: Likewise.
	* sysdeps/ieee754/k_standardl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/w_expl_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/w_expl_compat.c: Likewise.
	* sysdeps/ieee754/ldbl-96/w_expl_compat.c: Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/w_sqrt_compat.S: Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/w_sqrtf_compat.S: Likewise.
	* sysdeps/powerpc/powerpc32/power5/fpu/w_sqrt_compat.S: Likewise.
	* sysdeps/powerpc/powerpc32/power5/fpu/w_sqrtf_compat.S: Likewise.
	* sysdeps/sparc/sparc32/fpu/w_sqrt_compat.S: Likewise.
	* sysdeps/sparc/sparc32/fpu/w_sqrtf_compat.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/w_sqrt_compat-vis3.S:
	Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/w_sqrtf_compat-vis3.S:
	Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/w_sqrt_compat.S: Likewise.
	* sysdeps/sparc/sparc32/sparcv9/fpu/w_sqrtf_compat.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/w_sqrt_compat.S: Likewise.
	* sysdeps/sparc/sparc64/fpu/w_sqrtf_compat.S: Likewise.
This commit is contained in:
Joseph Myers 2017-08-21 17:45:10 +00:00
parent 4504783c0f
commit 813378e9fe
113 changed files with 524 additions and 175 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

172
ChangeLog
View File

@ -1,3 +1,175 @@
2017-08-21 Joseph Myers <joseph@codesourcery.com>
* math/math.h [__USE_MISC] (_LIB_VERSION_TYPE): Remove.
[__USE_MISC] (_LIB_VERSION): Likewise.
[__USE_MISC] (struct exception): Likewise.
[__USE_MISC] (matherr): Likewise.
[__USE_MISC] (DOMAIN): Likewise.
[__USE_MISC] (SING): Likewise.
[__USE_MISC] (OVERFLOW): Likewise.
[__USE_MISC] (UNDERFLOW): Likewise.
[__USE_MISC] (TLOSS): Likewise.
[__USE_MISC] (PLOSS): Likewise.
[__USE_MISC] (HUGE): Likewise.
[__USE_XOPEN] (MAXFLOAT): Define even if [__USE_MISC].
* math/math-svid-compat.h: New file.
* conform/linknamespace.pl (@whitelist): Remove matherr, matherrf
and matherrl.
* include/math.h [!_ISOMAC] (__matherr): Remove.
* manual/arith.texi (FP Exceptions): Do not document matherr.
* math/Makefile (tests): Change test-matherr to test-matherr-3.
(tests-internal): New variable.
(install-lib): Do not add libieee.a.
(non-lib.a): Likewise.
(extra-objs): Do not add libieee.a and ieee-math.o.
(CPPFLAGS-s_lib_version.c): Remove variable.
($(objpfx)libieee.a): Remove rule.
($(addprefix $(objpfx), $(tests-internal)): Depend on $(libm).
* math/ieee-math.c: Remove.
* math/libm-test-support.c (matherr): Remove.
* math/test-matherr.c: Use <support/test-driver.c>. Add copyright
and license notices. Include <math-svid-compat.h> and
<shlib-compat.h>.
(matherr): Undefine as macro. Use compat_symbol_reference.
(_LIB_VERSION): Likewise.
* math/test-matherr-2.c: New file.
* math/test-matherr-3.c: Likewise.
* sysdeps/generic/math_private.h (__kernel_standard): Remove
declaration.
(__kernel_standard_f): Likewise.
(__kernel_standard_l): Likewise.
* sysdeps/ieee754/s_lib_version.c: Do not include <math.h> or
<math_private.h>. Include <math-svid-compat.h>.
(_LIB_VERSION): Undefine as macro.
(_LIB_VERSION_INTERNAL): Always initialize to _POSIX_. Define
only if [LIBM_SVID_COMPAT || !defined SHARED]. If
[LIBM_SVID_COMPAT], use compat_symbol.
* sysdeps/ieee754/s_matherr.c: Do not include <math.h> or
<math_private.h>. Include <math-svid-compat.h>.
(matherr): Undefine as macro.
(__matherr): Define only if [LIBM_SVID_COMPAT]. Use
compat_symbol.
* sysdeps/ia64/fpu/libm_error.c: Include <math-svid-compat.h>.
[_LIBC && LIBM_SVID_COMPAT] (matherrf): Use
compat_symbol_reference.
[_LIBC && LIBM_SVID_COMPAT] (matherrl): Likewise.
[_LIBC && !LIBM_SVID_COMPAT] (matherrf): Define as macro.
[_LIBC && !LIBM_SVID_COMPAT] (matherrl): Likewise.
* sysdeps/ia64/fpu/libm_support.h: Include <math-svid-compat.h>.
(MATHERR_D): Remove declaration.
[!_LIBC] (_LIB_VERSION_TYPE): Likewise
[!LIBM_BUILD] (_LIB_VERSIONIMF): Likewise.
[LIBM_BUILD] (pmatherrf): Likewise.
[LIBM_BUILD] (pmatherr): Likewise.
[LIBM_BUILD] (pmatherrl): Likewise.
(DOMAIN): Likewise.
(SING): Likewise.
(OVERFLOW): Likewise.
(UNDERFLOW): Likewise.
(TLOSS): Likewise.
(PLOSS): Likewise.
* sysdeps/ia64/fpu/s_matherrf.c: Include <math-svid-compat.h>.
(__matherrf): Define only if [LIBM_SVID_COMPAT]. Use
compat_symbol.
* sysdeps/ia64/fpu/s_matherrl.c: Include <math-svid-compat.h>.
(__matherrl): Define only if [LIBM_SVID_COMPAT]. Use
compat_symbol.
* math/lgamma-compat.h: Include <math-svid-compat.h>.
* math/w_acos_compat.c: Likewise.
* math/w_acosf_compat.c: Likewise.
* math/w_acosh_compat.c: Likewise.
* math/w_acoshf_compat.c: Likewise.
* math/w_acoshl_compat.c: Likewise.
* math/w_acosl_compat.c: Likewise.
* math/w_asin_compat.c: Likewise.
* math/w_asinf_compat.c: Likewise.
* math/w_asinl_compat.c: Likewise.
* math/w_atan2_compat.c: Likewise.
* math/w_atan2f_compat.c: Likewise.
* math/w_atan2l_compat.c: Likewise.
* math/w_atanh_compat.c: Likewise.
* math/w_atanhf_compat.c: Likewise.
* math/w_atanhl_compat.c: Likewise.
* math/w_cosh_compat.c: Likewise.
* math/w_coshf_compat.c: Likewise.
* math/w_coshl_compat.c: Likewise.
* math/w_exp10_compat.c: Likewise.
* math/w_exp10f_compat.c: Likewise.
* math/w_exp10l_compat.c: Likewise.
* math/w_exp2_compat.c: Likewise.
* math/w_exp2f_compat.c: Likewise.
* math/w_exp2l_compat.c: Likewise.
* math/w_fmod_compat.c: Likewise.
* math/w_fmodf_compat.c: Likewise.
* math/w_fmodl_compat.c: Likewise.
* math/w_hypot_compat.c: Likewise.
* math/w_hypotf_compat.c: Likewise.
* math/w_hypotl_compat.c: Likewise.
* math/w_j0_compat.c: Likewise.
* math/w_j0f_compat.c: Likewise.
* math/w_j0l_compat.c: Likewise.
* math/w_j1_compat.c: Likewise.
* math/w_j1f_compat.c: Likewise.
* math/w_j1l_compat.c: Likewise.
* math/w_jn_compat.c: Likewise.
* math/w_jnf_compat.c: Likewise.
* math/w_jnl_compat.c: Likewise.
* math/w_lgamma_main.c: Likewise.
* math/w_lgamma_r_compat.c: Likewise.
* math/w_lgammaf_main.c: Likewise.
* math/w_lgammaf_r_compat.c: Likewise.
* math/w_lgammal_main.c: Likewise.
* math/w_lgammal_r_compat.c: Likewise.
* math/w_log10_compat.c: Likewise.
* math/w_log10f_compat.c: Likewise.
* math/w_log10l_compat.c: Likewise.
* math/w_log2_compat.c: Likewise.
* math/w_log2f_compat.c: Likewise.
* math/w_log2l_compat.c: Likewise.
* math/w_log_compat.c: Likewise.
* math/w_logf_compat.c: Likewise.
* math/w_logl_compat.c: Likewise.
* math/w_pow_compat.c: Likewise.
* math/w_powf_compat.c: Likewise.
* math/w_powl_compat.c: Likewise.
* math/w_remainder_compat.c: Likewise.
* math/w_remainderf_compat.c: Likewise.
* math/w_remainderl_compat.c: Likewise.
* math/w_scalb_compat.c: Likewise.
* math/w_scalbf_compat.c: Likewise.
* math/w_scalbl_compat.c: Likewise.
* math/w_sinh_compat.c: Likewise.
* math/w_sinhf_compat.c: Likewise.
* math/w_sinhl_compat.c: Likewise.
* math/w_sqrt_compat.c: Likewise.
* math/w_sqrtf_compat.c: Likewise.
* math/w_sqrtl_compat.c: Likewise.
* math/w_tgamma_compat.c: Likewise.
* math/w_tgammaf_compat.c: Likewise.
* math/w_tgammal_compat.c: Likewise.
* sysdeps/ieee754/dbl-64/w_exp_compat.c: Likewise.
* sysdeps/ieee754/flt-32/w_expf_compat.c: Likewise.
* sysdeps/ieee754/k_standard.c: Likewise.
* sysdeps/ieee754/k_standardf.c: Likewise.
* sysdeps/ieee754/k_standardl.c: Likewise.
* sysdeps/ieee754/ldbl-128/w_expl_compat.c: Likewise.
* sysdeps/ieee754/ldbl-128ibm/w_expl_compat.c: Likewise.
* sysdeps/ieee754/ldbl-96/w_expl_compat.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/w_sqrt_compat.S: Likewise.
* sysdeps/powerpc/powerpc32/power4/fpu/w_sqrtf_compat.S: Likewise.
* sysdeps/powerpc/powerpc32/power5/fpu/w_sqrt_compat.S: Likewise.
* sysdeps/powerpc/powerpc32/power5/fpu/w_sqrtf_compat.S: Likewise.
* sysdeps/sparc/sparc32/fpu/w_sqrt_compat.S: Likewise.
* sysdeps/sparc/sparc32/fpu/w_sqrtf_compat.S: Likewise.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/w_sqrt_compat-vis3.S:
Likewise.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/w_sqrtf_compat-vis3.S:
Likewise.
* sysdeps/sparc/sparc32/sparcv9/fpu/w_sqrt_compat.S: Likewise.
* sysdeps/sparc/sparc32/sparcv9/fpu/w_sqrtf_compat.S: Likewise.
* sysdeps/sparc/sparc64/fpu/w_sqrt_compat.S: Likewise.
* sysdeps/sparc/sparc64/fpu/w_sqrtf_compat.S: Likewise.
2017-08-21 Florian Weimer <fweimer@redhat.com>
[BZ #21864]

8
NEWS
View File

@ -17,6 +17,14 @@ Deprecated and removed features, and other changes affecting compatibility:
* On GNU/Linux, the obsolete Linux constant PTRACE_SEIZE_DEVEL is no longer
defined by <sys/ptrace.h>.
* libm no longer supports SVID error handling (calling a user-provided
matherr function on error) or the _LIB_VERSION variable to control error
handling. (SVID error handling and the _LIB_VERSION variable still work
for binaries linked against older versions of the GNU C Library.) The
libieee.a library is no longer provided. math.h no longer defines struct
exception, or the macros X_TLOSS, DOMAIN, SING, OVERFLOW, UNDERFLOW,
TLOSS, PLOSS and HUGE.
Changes to build and runtime requirements:
[Add changes to build and runtime requirements here]

8
conform/linknamespace.pl
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@ -47,11 +47,7 @@ close (STDSYMS) || die ("close $stdsyms_file: $!\n");
# * Bug 18442: re_syntax_options wrongly brought in by regcomp and
# used by re_comp.
#
# * False positive: matherr only used conditionally. matherrf/matherrl are used
# by IA64 too for the same reason.
#
@whitelist = qw(stdin stdout stderr re_syntax_options matherr matherrf
matherrl);
@whitelist = qw(stdin stdout stderr re_syntax_options);
foreach my $sym (@whitelist) {
$stdsyms{$sym} = 1;
}
@ -134,7 +130,7 @@ foreach my $sym (@sym_data) {
# possible that (a) any standard library definition is weak, so can be
# overridden by the user's definition, and (b) the symbol is only used
# conditionally and not if the program is limited to standard
# functionality. (matherr is an example of such a false positive.)
# functionality.
#
# * If a symbol reference is only brought in by the user using a data
# symbol rather than a function from the standard library, this will

2
include/math.h
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@ -9,8 +9,6 @@
#ifndef _ISOMAC
/* Now define the internal interfaces. */
extern int __matherr (struct exception *__exc);
extern int __signgam;
# if IS_IN (libc) || IS_IN (libm)

8
manual/arith.texi
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@ -514,14 +514,6 @@ signal. The default action for this signal is to terminate the
program. @xref{Signal Handling}, for how you can change the effect of
the signal.
@findex matherr
In the System V math library, the user-defined function @code{matherr}
is called when certain exceptions occur inside math library functions.
However, the Unix98 standard deprecates this interface. We support it
for historical compatibility, but recommend that you do not use it in
new programs. When this interface is used, exceptions may not be
raised.
@noindent
The exceptions defined in @w{IEEE 754} are:

23
math/Makefile
View File

@ -181,7 +181,7 @@ $(inst_libdir)/libm.a: $(common-objpfx)format.lds \
endif
# Rules for the test suite.
tests = test-matherr test-fenv atest-exp atest-sincos atest-exp2 basic-test \
tests = test-matherr-3 test-fenv atest-exp atest-sincos atest-exp2 basic-test \
test-misc test-fpucw test-fpucw-ieee tst-definitions test-tgmath \
test-tgmath-ret bug-nextafter bug-nexttoward bug-tgmath1 \
test-tgmath-int test-tgmath2 test-powl tst-CMPLX tst-CMPLX2 test-snan \
@ -201,6 +201,7 @@ tests-static = test-fpucw-static test-fpucw-ieee-static \
test-signgam-uchar-static test-signgam-uchar-init-static \
test-signgam-uint-static test-signgam-uint-init-static \
test-signgam-ullong-static test-signgam-ullong-init-static
tests-internal = test-matherr test-matherr-2
ifneq (,$(CXX))
tests += test-math-isinff test-math-iszero
@ -357,12 +358,6 @@ CFLAGS-test-flt-eval-method.c = -fexcess-precision=standard
CFLAGS-test-fe-snans-always-signal.c = -fsignaling-nans
# The -lieee module sets the _LIB_VERSION_ switch to IEEE mode
# for error handling in the -lm functions.
install-lib += libieee.a
non-lib.a += libieee.a
extra-objs += libieee.a ieee-math.o
include ../Rules
gen-all-calls = $(gen-libm-calls) $(gen-calls)
@ -542,10 +537,6 @@ endef
object-suffixes-left := $(all-object-suffixes)
include $(o-iterator)
# This file defines the default _LIB_VERSION variable that controls
# the error return conventions for the math functions.
CPPFLAGS-s_lib_version.c := -D_POSIX_MODE
# We don't want the fdlibm code to use the inline math functions,
# only the fdlibm code.
math-CPPFLAGS += -D__NO_MATH_INLINES -D__LIBC_INTERNAL_MATH_INLINES
@ -566,17 +557,9 @@ CFLAGS-s_modff.c += -fsignaling-nans
CFLAGS-s_modfl.c += -fsignaling-nans
CFLAGS-s_modff128.c += -fsignaling-nans
# The -lieee library is actually an object file.
# The module just defines the _LIB_VERSION_ variable.
# It's not a library to make sure it is linked in instead of s_lib_version.o.
$(objpfx)libieee.a: $(objpfx)ieee-math.o
rm -f $@
$(patsubst %/,cd % &&,$(objpfx)) \
$(LN_S) $(<F) $(@F)
$(addprefix $(objpfx),\
$(filter-out $(tests-static) $(libm-tests-vector),\
$(tests))): $(libm)
$(tests) $(tests-internal))): $(libm)
$(addprefix $(objpfx),$(tests-static)): $(objpfx)libm.a
define o-iterator-doit
$(foreach f,$($(o)-funcs),\

6
math/ieee-math.c
View File

@ -1,6 +0,0 @@
/* Linking in this module forces IEEE error handling rules for math functions.
The default is POSIX.1 error handling. */
#include <math.h>
_LIB_VERSION_TYPE _LIB_VERSION = _IEEE_;

1
math/lgamma-compat.h
View File

@ -19,6 +19,7 @@
#ifndef LGAMMA_COMPAT_H
#define LGAMMA_COMPAT_H 1
#include <math-svid-compat.h>
#include <shlib-compat.h>
/* XSI POSIX requires lgamma to set signgam, but ISO C does not permit

7
math/libm-test-support.c
View File

@ -989,13 +989,6 @@ enable_test (int exceptions)
return 1;
}
/* This is to prevent messages from the SVID libm emulation. */
int
matherr (struct exception *x __attribute__ ((unused)))
{
return 1;
}
static void
initialize (void)
{

90
math/math-svid-compat.h Normal file
View File

@ -0,0 +1,90 @@
/* Declarations for SVID math error handling compatibility.
Copyright (C) 1991-2017 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 _MATH_SVID_COMPAT_H
#define _MATH_SVID_COMPAT_H 1
#ifndef __ASSEMBLER__
/* Support for various different standard error handling behaviors. */
typedef enum
{
_IEEE_ = -1, /* According to IEEE 754/IEEE 854. */
_SVID_, /* According to System V, release 4. */
_XOPEN_, /* Nowadays also Unix98. */
_POSIX_,
_ISOC_ /* Actually this is ISO C99. */
} _LIB_VERSION_TYPE;
/* This variable can be changed at run-time to any of the values above to
affect floating point error handling behavior (it may also be necessary
to change the hardware FPU exception settings). */
extern _LIB_VERSION_TYPE _LIB_VERSION;
/* In SVID error handling, `matherr' is called with this description
of the exceptional condition. */
struct exception
{
int type;
char *name;
double arg1;
double arg2;
double retval;
};
extern int matherr (struct exception *__exc);
extern int __matherr (struct exception *__exc);
# define X_TLOSS 1.41484755040568800000e+16
/* Types of exceptions in the `type' field. */
# define DOMAIN 1
# define SING 2
# define OVERFLOW 3
# define UNDERFLOW 4
# define TLOSS 5
# define PLOSS 6
/* SVID mode specifies returning this large value instead of infinity. */
# define HUGE 3.40282347e+38F
#endif
/* The above definitions may be used in testcases. The following code
is only used in the implementation. */
#ifdef _LIBC
# ifndef __ASSEMBLER__
/* fdlibm kernel function */
extern double __kernel_standard (double, double, int);
extern float __kernel_standard_f (float, float, int);
extern long double __kernel_standard_l (long double, long double, int);
# endif
# include <shlib-compat.h>
# define LIBM_SVID_COMPAT SHLIB_COMPAT (libm, GLIBC_2_0, GLIBC_2_27)
# if LIBM_SVID_COMPAT
compat_symbol_reference (libm, matherr, matherr, GLIBC_2_0);
compat_symbol_reference (libm, _LIB_VERSION, _LIB_VERSION, GLIBC_2_0);
# elif !defined __ASSEMBLER__
/* Except when building compat code, optimize out references to
_LIB_VERSION and matherr. */
# define _LIB_VERSION _POSIX_
# define matherr(EXC) ((void) (EXC), 0)
# endif
#endif
#endif /* math-svid-compat.h. */

66
math/math.h
View File

@ -501,70 +501,10 @@ iszero (__T __val)
# endif /* __cplusplus */
#endif /* Use IEC_60559_BFP_EXT. */
#ifdef __USE_MISC
/* Support for various different standard error handling behaviors. */
typedef enum
{
_IEEE_ = -1, /* According to IEEE 754/IEEE 854. */
_SVID_, /* According to System V, release 4. */
_XOPEN_, /* Nowadays also Unix98. */
_POSIX_,
_ISOC_ /* Actually this is ISO C99. */
} _LIB_VERSION_TYPE;
/* This variable can be changed at run-time to any of the values above to
affect floating point error handling behavior (it may also be necessary
to change the hardware FPU exception settings). */
extern _LIB_VERSION_TYPE _LIB_VERSION;
#endif
#ifdef __USE_MISC
/* In SVID error handling, `matherr' is called with this description
of the exceptional condition.
We have a problem when using C++ since `exception' is a reserved
name in C++. */
# ifdef __cplusplus
struct __exception
# else
struct exception
# endif
{
int type;
char *name;
double arg1;
double arg2;
double retval;
};
# ifdef __cplusplus
extern int matherr (struct __exception *__exc) throw ();
# else
extern int matherr (struct exception *__exc);
# endif
# define X_TLOSS 1.41484755040568800000e+16
/* Types of exceptions in the `type' field. */
# define DOMAIN 1
# define SING 2
# define OVERFLOW 3
# define UNDERFLOW 4
# define TLOSS 5
# define PLOSS 6
/* SVID mode specifies returning this large value instead of infinity. */
# define HUGE 3.40282347e+38F
#else /* !Misc. */
# ifdef __USE_XOPEN
#ifdef __USE_XOPEN
/* X/Open wants another strange constant. */
# define MAXFLOAT 3.40282347e+38F
# endif
#endif /* Misc. */
# define MAXFLOAT 3.40282347e+38F
#endif
/* Some useful constants. */

49
math/test-matherr-2.c Normal file
View File

@ -0,0 +1,49 @@
/* Test matherr (compat symbols, binary defines own _LIB_VERSION).
Copyright (C) 1997-2017 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/>. */
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <math-svid-compat.h>
#include <shlib-compat.h>
#undef matherr
#undef _LIB_VERSION
compat_symbol_reference (libm, matherr, matherr, GLIBC_2_0);
compat_symbol_reference (libm, _LIB_VERSION, _LIB_VERSION, GLIBC_2_0);
_LIB_VERSION_TYPE _LIB_VERSION = _SVID_;
static int fail = 1;
int
matherr (struct exception *s)
{
printf ("matherr is working\n");
fail = 0;
return 1;
}
static int
do_test (void)
{
acos (2.0);
return fail;
}
#include <support/test-driver.c>

44
math/test-matherr-3.c Normal file
View File

@ -0,0 +1,44 @@
/* Test matherr not supported for new binaries.
Copyright (C) 1997-2017 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/>. */
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <math-svid-compat.h>
_LIB_VERSION_TYPE _LIB_VERSION = _SVID_;
static int fail = 0;
int
matherr (struct exception *s)
{
printf ("matherr is working, but should not be\n");
fail = 1;
return 1;
}
static int
do_test (void)
{
acos (2.0);
return fail;
}
#include <support/test-driver.c>

28
math/test-matherr.c
View File

@ -1,7 +1,32 @@
/* Test matherr (compat symbols, binary modifies library's _LIB_VERSION).
Copyright (C) 1997-2017 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/>. */
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <math-svid-compat.h>
#include <shlib-compat.h>
#undef matherr
#undef _LIB_VERSION
compat_symbol_reference (libm, matherr, matherr, GLIBC_2_0);
compat_symbol_reference (libm, _LIB_VERSION, _LIB_VERSION, GLIBC_2_0);
static int fail = 1;
int
@ -20,5 +45,4 @@ do_test (void)
return fail;
}
#define TEST_FUNCTION do_test ()
#include "../test-skeleton.c"
#include <support/test-driver.c>

1
math/w_acos_compat.c
View File

@ -19,6 +19,7 @@
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper acos */

1
math/w_acosf_compat.c
View File

@ -19,6 +19,7 @@
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper acosf */

1
math/w_acosh_compat.c
View File

@ -18,6 +18,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper acosh */

1
math/w_acoshf_compat.c
View File

@ -18,6 +18,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper acoshf */

1
math/w_acoshl_compat.c
View File

@ -18,6 +18,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper acosl */

1
math/w_acosl_compat.c
View File

@ -19,6 +19,7 @@
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper acosl */

1
math/w_asin_compat.c
View File

@ -19,6 +19,7 @@
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper asin */

1
math/w_asinf_compat.c
View File

@ -19,6 +19,7 @@
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper asinf */

1
math/w_asinl_compat.c
View File

@ -19,6 +19,7 @@
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper asinl */

1
math/w_atan2_compat.c
View File

@ -23,6 +23,7 @@
#include <errno.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
double

1
math/w_atan2f_compat.c
View File

@ -23,6 +23,7 @@
#include <errno.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
float

1
math/w_atan2l_compat.c
View File

@ -23,6 +23,7 @@
#include <errno.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
long double

1
math/w_atanh_compat.c
View File

@ -18,6 +18,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper atanh */

1
math/w_atanhf_compat.c
View File

@ -18,6 +18,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper atanhf */

1
math/w_atanhl_compat.c
View File

@ -18,6 +18,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper atanhl */

1
math/w_cosh_compat.c
View File

@ -16,6 +16,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
double
__cosh (double x)

1
math/w_coshf_compat.c
View File

@ -20,6 +20,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
float
__coshf (float x)

1
math/w_coshl_compat.c
View File

@ -21,6 +21,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
long double
__coshl (long double x)

1
math/w_exp10_compat.c
View File

@ -23,6 +23,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
double
__exp10 (double x)

1
math/w_exp10f_compat.c
View File

@ -23,6 +23,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
float
__exp10f (float x)

1
math/w_exp10l_compat.c
View File

@ -23,6 +23,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
long double
__exp10l (long double x)

1
math/w_exp2_compat.c
View File

@ -4,6 +4,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
double
__exp2 (double x)

1
math/w_exp2f_compat.c
View File

@ -4,6 +4,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
float
__exp2f (float x)

1
math/w_exp2l_compat.c
View File

@ -4,6 +4,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
long double
__exp2l (long double x)

1
math/w_fmod_compat.c
View File

@ -18,6 +18,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper fmod */
double

1
math/w_fmodf_compat.c
View File

@ -18,6 +18,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper fmodf */
float

1
math/w_fmodl_compat.c
View File

@ -18,6 +18,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper fmodl */
long double

1
math/w_hypot_compat.c
View File

@ -16,6 +16,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
double

1
math/w_hypotf_compat.c
View File

@ -19,6 +19,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
float

1
math/w_hypotl_compat.c
View File

@ -20,6 +20,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
long double

1
math/w_j0_compat.c
View File

@ -19,6 +19,7 @@
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper j0 */

1
math/w_j0f_compat.c
View File

@ -19,6 +19,7 @@
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper j0f */

1
math/w_j0l_compat.c
View File

@ -19,6 +19,7 @@
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper j0l */

1
math/w_j1_compat.c
View File

@ -19,6 +19,7 @@
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper j1 */

1
math/w_j1f_compat.c
View File

@ -19,6 +19,7 @@
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper j1f */

1
math/w_j1l_compat.c
View File

@ -19,6 +19,7 @@
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper j1l */

1
math/w_jn_compat.c
View File

@ -19,6 +19,7 @@
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper jn */

1
math/w_jnf_compat.c
View File

@ -19,6 +19,7 @@
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper jnf */

1
math/w_jnl_compat.c
View File

@ -46,6 +46,7 @@ static char rcsid[] = "$NetBSD: $";
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
long double __jnl(int n, long double x) /* wrapper jnl */
{

1
math/w_lgamma_main.c
View File

@ -18,6 +18,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
#include <lgamma-compat.h>

1
math/w_lgamma_r_compat.c
View File

@ -16,6 +16,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
double

1
math/w_lgammaf_main.c
View File

@ -15,6 +15,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
#include <lgamma-compat.h>

1
math/w_lgammaf_r_compat.c
View File

@ -19,6 +19,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
float

1
math/w_lgammal_main.c
View File

@ -22,6 +22,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
#include <lgamma-compat.h>

1
math/w_lgammal_r_compat.c
View File

@ -20,6 +20,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
long double

1
math/w_log10_compat.c
View File

@ -19,6 +19,7 @@
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper log10(x) */

1
math/w_log10f_compat.c
View File

@ -19,6 +19,7 @@
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper log10f(x) */

1
math/w_log10l_compat.c
View File

@ -19,6 +19,7 @@
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper log10l(x) */

1
math/w_log2_compat.c
View File

@ -19,6 +19,7 @@
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper log2(x) */

1
math/w_log2f_compat.c
View File

@ -19,6 +19,7 @@
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper log2f(x) */

1
math/w_log2l_compat.c
View File

@ -19,6 +19,7 @@
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper log2l(x) */

1
math/w_log_compat.c
View File

@ -19,6 +19,7 @@
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper log(x) */

1
math/w_logf_compat.c
View File

@ -19,6 +19,7 @@
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper logf(x) */

1
math/w_logl_compat.c
View File

@ -19,6 +19,7 @@
#include <fenv.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper logl(x) */

1
math/w_pow_compat.c
View File

@ -18,6 +18,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper pow */

1
math/w_powf_compat.c
View File

@ -18,6 +18,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper powf */

1
math/w_powl_compat.c
View File

@ -18,6 +18,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper powl */

2
math/w_remainder_compat.c
View File

@ -18,6 +18,8 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
#include <math-svid-compat.h>
/* wrapper remainder */

2
math/w_remainderf_compat.c
View File

@ -18,6 +18,8 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
#include <math-svid-compat.h>
/* wrapper remainderf */

2
math/w_remainderl_compat.c
View File

@ -18,6 +18,8 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
#include <math-svid-compat.h>
/* wrapper remainderl */

1
math/w_scalb_compat.c
View File

@ -19,6 +19,7 @@
#include <errno.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
static double

1
math/w_scalbf_compat.c
View File

@ -19,6 +19,7 @@
#include <errno.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
static float

1
math/w_scalbl_compat.c
View File

@ -19,6 +19,7 @@
#include <errno.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
static long double

1
math/w_sinh_compat.c
View File

@ -16,6 +16,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
double
__sinh (double x)

1
math/w_sinhf_compat.c
View File

@ -19,6 +19,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
float
__sinhf (float x)

1
math/w_sinhl_compat.c
View File

@ -20,6 +20,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
long double
__sinhl (long double x)

1
math/w_sqrt_compat.c
View File

@ -18,6 +18,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper sqrt */

1
math/w_sqrtf_compat.c
View File

@ -18,6 +18,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper sqrtf */

1
math/w_sqrtl_compat.c
View File

@ -18,6 +18,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper sqrtl */

1
math/w_tgamma_compat.c
View File

@ -18,6 +18,7 @@
#include <errno.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
double
__tgamma(double x)

1
math/w_tgammaf_compat.c
View File

@ -16,6 +16,7 @@
#include <errno.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
float
__tgammaf(float x)

1
math/w_tgammal_compat.c
View File

@ -21,6 +21,7 @@
#include <errno.h>
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
long double
__tgammal(long double x)

5
sysdeps/generic/math_private.h
View File

@ -249,11 +249,6 @@ fabsf128 (_Float128 x)
/* fdlibm kernel function */
extern double __kernel_standard (double,double,int);
extern float __kernel_standard_f (float,float,int);
extern long double __kernel_standard_l (long double,long double,int);
/* Prototypes for functions of the IBM Accurate Mathematical Library. */
extern double __exp1 (double __x, double __xx, double __error);
extern double __sin (double __x);

8
sysdeps/ia64/fpu/libm_error.c
View File

@ -91,11 +91,19 @@
#include <stdio.h>
#include <stdlib.h>
#include "libm_support.h"
#include <math-svid-compat.h>
#ifdef _LIBC
# define pmatherr matherr
# define pmatherrf matherrf
# define pmatherrl matherrl
# if LIBM_SVID_COMPAT
compat_symbol_reference (libm, matherrf, matherrf, GLIBC_2_2_3);
compat_symbol_reference (libm, matherrl, matherrl, GLIBC_2_2_3);
# else
# define matherrf(EXC) ((void) (EXC), 0)
# define matherrl(EXC) ((void) (EXC), 0)
# endif
#else
_LIB_VERSION_TYPE
#if defined( __POSIX__ )

39
sysdeps/ia64/fpu/libm_support.h
View File

@ -83,6 +83,8 @@
#ifndef __LIBM_SUPPORT_H_INCLUDED__
#define __LIBM_SUPPORT_H_INCLUDED__
#include <math-svid-compat.h>
#ifndef _LIBC
#if !(defined(_WIN32) || defined(_WIN64))
# pragma const_seg(".rodata") /* place constant data in text (code) section */
@ -156,36 +158,8 @@ struct exceptionl
#endif
extern int MATHERR_F(struct exceptionf*);
extern int MATHERR_D(struct EXC_DECL_D*);
extern int matherrl(struct exceptionl*);
#ifndef _LIBC
// Add code to support _LIB_VERSIONIMF
typedef enum
{
_IEEE_ = -1, // IEEE-like behavior
_SVID_, // SysV, Rel. 4 behavior
_XOPEN_, // Unix98
_POSIX_, // Posix
_ISOC_ // ISO C9X
} _LIB_VERSION_TYPE;
#endif
// This is a run-time variable and may affect
// floating point behavior of the libm functions
#if !defined( LIBM_BUILD )
#if defined( _DLL )
extern _LIB_VERSION_TYPE __declspec(dllimport) _LIB_VERSIONIMF;
#else
extern _LIB_VERSION_TYPE _LIB_VERSIONIMF;
#endif /* _DLL */
#else
extern int (*pmatherrf)(struct exceptionf*);
extern int (*pmatherr)(struct EXC_DECL_D*);
extern int (*pmatherrl)(struct exceptionl*);
#endif /* LIBM_BUILD */
/* memory format definitions (LITTLE_ENDIAN only) */
#if !(defined(SIZE_INT_32) || defined(SIZE_INT_64))
@ -1031,15 +1005,6 @@ struct ker80 {
#endif
/* error codes */
#define DOMAIN 1 /* argument domain error */
#define SING 2 /* argument singularity */
#define OVERFLOW 3 /* overflow range error */
#define UNDERFLOW 4 /* underflow range error */
#define TLOSS 5 /* total loss of precision */
#define PLOSS 6 /* partial loss of precision */
/* */
#define VOLATILE_32 /*volatile*/

5
sysdeps/ia64/fpu/s_matherrf.c
View File

@ -13,8 +13,10 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
#include "libm_support.h"
#if LIBM_SVID_COMPAT
int
weak_function
__matherrf(struct exceptionf *x)
@ -23,4 +25,5 @@ __matherrf(struct exceptionf *x)
if(x->arg1!=x->arg1) return 0;
return n;
}
weak_alias (__matherrf, matherrf)
compat_symbol (libm, __matherrf, matherrf, GLIBC_2_2_3);
#endif

5
sysdeps/ia64/fpu/s_matherrl.c
View File

@ -13,8 +13,10 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
#include "libm_support.h"
#if LIBM_SVID_COMPAT
int
weak_function
__matherrl(struct exceptionl *x)
@ -23,4 +25,5 @@ __matherrl(struct exceptionl *x)
if(x->arg1!=x->arg1) return 0;
return n;
}
weak_alias (__matherrl, matherrl)
compat_symbol (libm, __matherrl, matherrl, GLIBC_2_2_3);
#endif

1
sysdeps/ieee754/dbl-64/w_exp_compat.c
View File

@ -18,6 +18,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper exp */
double

1
sysdeps/ieee754/flt-32/w_expf_compat.c
View File

@ -18,6 +18,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper expf */
float

1
sysdeps/ieee754/k_standard.c
View File

@ -16,6 +16,7 @@ static char rcsid[] = "$NetBSD: k_standard.c,v 1.6 1995/05/10 20:46:35 jtc Exp $
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
#include <errno.h>
#include <assert.h>

1
sysdeps/ieee754/k_standardf.c
View File

@ -18,6 +18,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* Handle errors for a libm function as specified by TYPE (see

1
sysdeps/ieee754/k_standardl.c
View File

@ -32,6 +32,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
#include <fenv.h>
#include <float.h>
#include <errno.h>

1
sysdeps/ieee754/ldbl-128/w_expl_compat.c
View File

@ -24,6 +24,7 @@ static char rcsid[] = "$NetBSD: $";
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
long double __expl(long double x) /* wrapper exp */
{

1
sysdeps/ieee754/ldbl-128ibm/w_expl_compat.c
View File

@ -1,5 +1,6 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
#include <math_ldbl_opt.h>
long double __expl(long double x) /* wrapper exp */

1
sysdeps/ieee754/ldbl-96/w_expl_compat.c
View File

@ -18,6 +18,7 @@
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/* wrapper expl */
long double

22
sysdeps/ieee754/s_lib_version.c
View File

@ -18,24 +18,18 @@ static char rcsid[] = "$NetBSD: s_lib_version.c,v 1.6 1995/05/10 20:47:44 jtc Ex
* MACRO for standards
*/
#include <math.h>
#include <math_private.h>
#include <math-svid-compat.h>
/*
* define and initialize _LIB_VERSION
*/
#ifdef _POSIX_MODE
#undef _LIB_VERSION
#if LIBM_SVID_COMPAT || !defined SHARED
_LIB_VERSION_TYPE _LIB_VERSION_INTERNAL = _POSIX_;
#else
#ifdef _XOPEN_MODE
_LIB_VERSION_TYPE _LIB_VERSION_INTERNAL = _XOPEN_;
#else
#ifdef _SVID3_MODE
_LIB_VERSION_TYPE _LIB_VERSION_INTERNAL = _SVID_;
#else /* default _IEEE_MODE */
_LIB_VERSION_TYPE _LIB_VERSION_INTERNAL = _IEEE_;
#endif
#endif
#endif
#if LIBM_SVID_COMPAT
compat_symbol (libm, _LIB_VERSION_INTERNAL, _LIB_VERSION, GLIBC_2_0);
#elif !defined SHARED
/* For use in .S wrappers. */
weak_alias (_LIB_VERSION_INTERNAL, _LIB_VERSION)
#endif

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