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2017-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers
2016-12-31Add fromfp functions.Joseph Myers
TS 18661-1 defines fromfp functions (fromfp, fromfpx, ufromfp, ufromfpx, and float and long double variants) to convert from floating-point to an integer type with any signedness and any given width up to that of intmax_t, in any of the five IEEE rounding modes (the usual four for binary floating point, plus rounding to nearest with ties rounding away from zero), with control of whether in-range non-integer values should result in the "inexact" exception being raised. This patch implements these functions for glibc. These implementations are (apart from raising exceptions) pure integer implementations; it's entirely possible optimized versions could be devised for some architectures. A common math/fromfp.h header provides various common helper code that can readily be shared between the implementations for different types. For each type, the bulk of the implementation is also shared between the four functions, with wrappers that define UNSIGNED and INEXACT macros appropriately before including the main implementation. As the functions return intmax_t and uintmax_t without math.h being allowed to expose those typedef names, they are declared using __intmax_t and __uintmax_t as obtained from <bits/types.h>. The FP_INT_* rounding direction macros are defined as ascending integers in the order the names are listed in the TS; I see no significant value in allowing architectures to vary the values of them. The libm-test machinery is duly adapted to handle unsigned int arguments, and intmax_t and uintmax_t results. Because each test input is generally tested for four functions, five rounding modes and several different widths, the libm-test.inc additions are very large. Thus, the diffs in the body of this message exclude the libm-test.inc changes, with the full patch being attached gzipped. The bulk of the new tests were generated (expanded from a test input plus rounding results and information about where it lies in the relevant interval between integers, to libm-test tests for all relevant combinations of function, rounding direction and width) by a script that's included in the patch as math/gen-fromfp-tests.py (input data math/gen-fromfp-tests-inputs); as an ad hoc script that's not really expected to be rerun, it's not very polished, but it's at least plausibly useful for adding any further tests for these functions in future. I may split the libm-test tests up by function in future (so both libm-test.inc and auto-libm-test-out are split into separate files, and the tests for each function are also built and run separately), but not for 2.25. For no obvious reason, adding tgmath tests for the new functions resulted in -Wuninitialized errors from test-tgmath.c about the variable i being used uninitialized. Those errors were correct - the variable is read by the frexp version in test-tgmath.c (where real frexp would write through that pointer instead of reading it) - but I don't know why this patch would result in the pre-existing issue being newly detected. The patch initializes the variable to avoid those errors. With these changes, glibc 2.25 should have all the library features from TS 18661-1 other than the functions that round result to narrower type (and constant rounding directions, but I'm considering those mainly a compiler feature not a library one). Tested for x86_64, x86, mips64 and powerpc. * math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (fromfp): New declaration. [__GLIBC_USE (IEC_60559_BFP_EXT)] (fromfpx): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (ufromfp): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (ufromfpx): Likewise. * math/tgmath.h (__TGMATH_TERNARY_FIRST_REAL_RET_ONLY): New macro. [__GLIBC_USE (IEC_60559_BFP_EXT)] (fromfp): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (ufromfp): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (fromfpx): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (ufromfpx): Likewise. * math/math.h: Include <bits/types.h>. [__GLIBC_USE (IEC_60559_BFP_EXT)] (FP_INT_UPWARD): New enum constant and macro. (FP_INT_DOWNWARD): Likewise. (FP_INT_TOWARDZERO): Likewise. (FP_INT_TONEARESTFROMZERO): Likewise. (FP_INT_TONEAREST): Likewise. * math/Versions (fromfp): New libm symbol at version GLIBC_2.25. (fromfpf): Likewise. (fromfpl): Likewise. (ufromfp): Likewise. (ufromfpf): Likewise. (ufromfpl): Likewise. (fromfpx): Likewise. (fromfpxf): Likewise. (fromfpxl): Likewise. (ufromfpx): Likewise. (ufromfpxf): Likewise. (ufromfpxl): Likewise. * math/Makefile (libm-calls): Add s_fromfpF, s_ufromfpF, s_fromfpxF and s_ufromfpxF. * math/gen-fromfp-tests.py: New file. * math/gen-fromfp-tests-inputs: Likewise. * math/libm-test.inc: Include <stdint.h> (check_intmax_t): New function. (check_uintmax_t): Likewise. (struct test_fiu_M_data): New type. (struct test_fiu_U_data): Likewise. (RUN_TEST_fiu_M): New macro. (RUN_TEST_LOOP_fiu_M): Likewise. (RUN_TEST_fiu_U): Likewise. (RUN_TEST_LOOP_fiu_U): Likewise. (fromfp_test_data): New array. (fromfp_test): New function. (fromfpx_test_data): New array. (fromfpx_test): New function. (ufromfp_test_data): New array. (ufromfp_test): New function. (ufromfpx_test_data): New array. (ufromfpx_test): New function. (main): Call fromfp_test, fromfpx_test, ufromfp_test and ufromfpx_test. * math/gen-libm-test.pl (parse_args): Handle u, M and U descriptor characters. * math/test-tgmath-ret.c: Include <stdint.h>. (rm): New variable. (width): Likewise. (CHECK_RET_CONST_TYPE): Take extra arguments and pass them to called function. (CHECK_RET_CONST_FLOAT): Take extra arguments and pass them to CHECK_RET_CONST_TYPE. (CHECK_RET_CONST_DOUBLE): Likewise. (CHECK_RET_CONST_LDOUBLE): Likewise. (CHECK_RET_CONST): Take extra arguments and pass them to calls macros. (fromfp): New CHECK_RET_CONST call. (ufromfp): Likewise. (fromfpx): Likewise. (ufromfpx): Likewise. (do_test): Call check_return_fromfp, check_return_ufromfp, check_return_fromfpx and check_return_ufromfpx. * math/test-tgmath.c: Include <stdint.h> (NCALLS): Increase to 138. (F(compile_test)): Initialize i. Call fromfp functions. (F(fromfp)): New function. (F(fromfpx)): Likewise. (F(ufromfp)): Likewise. (F(ufromfpx)): Likewise. * manual/arith.texi (Rounding Functions): Document FP_INT_UPWARD, FP_INT_DOWNWARD, FP_INT_TOWARDZERO, FP_INT_TONEARESTFROMZERO, FP_INT_TONEAREST, fromfp, fromfpf, fromfpl, ufromfp, ufromfpf, ufromfpl, fromfpx, fromfpxf, fromfpxl, ufromfpx, ufromfpxf and ufromfpxl. * manual/libm-err-tab.pl (@all_functions): Add fromfp, fromfpx, ufromfp and ufromfpx. * math/fromfp.h: New file. * sysdeps/ieee754/dbl-64/s_fromfp.c: Likewise. * sysdeps/ieee754/dbl-64/s_fromfp_main.c: Likewise. * sysdeps/ieee754/dbl-64/s_fromfpx.c: Likewise. * sysdeps/ieee754/dbl-64/s_ufromfp.c: Likewise. * sysdeps/ieee754/dbl-64/s_ufromfpx.c: Likewise. * sysdeps/ieee754/flt-32/s_fromfpf.c: Likewise. * sysdeps/ieee754/flt-32/s_fromfpf_main.c: Likewise. * sysdeps/ieee754/flt-32/s_fromfpxf.c: Likewise. * sysdeps/ieee754/flt-32/s_ufromfpf.c: Likewise. * sysdeps/ieee754/flt-32/s_ufromfpxf.c: Likewise. * sysdeps/ieee754/ldbl-128/s_fromfpl.c: Likewise. * sysdeps/ieee754/ldbl-128/s_fromfpl_main.c: Likewise. * sysdeps/ieee754/ldbl-128/s_fromfpxl.c: Likewise. * sysdeps/ieee754/ldbl-128/s_ufromfpl.c: Likewise. * sysdeps/ieee754/ldbl-128/s_ufromfpxl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_fromfpl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_fromfpl_main.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_fromfpxl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_ufromfpl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_ufromfpxl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_fromfpl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_fromfpl_main.c: Likewise. * sysdeps/ieee754/ldbl-96/s_fromfpxl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_ufromfpl.c: Likewise. * sysdeps/ieee754/ldbl-96/s_ufromfpxl.c: Likewise. * sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add fromfp, ufromfp, fromfpx and ufromfpx. (CFLAGS-nldbl-fromfp.c): New variable. (CFLAGS-nldbl-fromfpx.c): Likewise. (CFLAGS-nldbl-ufromfp.c): Likewise. (CFLAGS-nldbl-ufromfpx.c): Likewise. * sysdeps/ieee754/ldbl-opt/nldbl-compat.h: Include <stdint.h>. * sysdeps/ieee754/ldbl-opt/nldbl-fromfp.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-fromfpx.c: Likewise. * sysdeps/ieee754/ldbl-opt/nldbl-ufromfp.c: Likewise. * sysdeps/ieee754/ldbl-opt/nldbl-ufromfpx.c: Likewise. * 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.
2016-12-14Refactor long double information into bits/long-double.h.Joseph Myers
Information about whether the ABI of long double is the same as that of double is split between bits/mathdef.h and bits/wordsize.h. When the ABIs are the same, bits/mathdef.h defines __NO_LONG_DOUBLE_MATH. In addition, in the case where the same glibc binary supports both -mlong-double-64 and -mlong-double-128, bits/wordsize.h defines __LONG_DOUBLE_MATH_OPTIONAL, along with __NO_LONG_DOUBLE_MATH if this particular compilation is with -mlong-double-64. As part of the refactoring I proposed in <https://sourceware.org/ml/libc-alpha/2016-11/msg00745.html>, this patch puts all that information in a single header, bits/long-double.h. It is included from sys/cdefs.h alongside the include of bits/wordsize.h, so other headers generally do not need to include bits/long-double.h directly. Previously, various bits/mathdef.h headers and bits/wordsize.h headers had this long double information (including implicitly in some bits/mathdef.h headers through not having the defines present in the default version). After the patch, it's all in six bits/long-double.h headers. Furthermore, most of those new headers are not architecture-specific. Architectures with optional long double all use the ldbl-opt sysdeps directory, either in the order (ldbl-64-128, ldbl-opt, ldbl-128) or (ldbl-128ibm, ldbl-opt). Thus a generic header for the case where long double = double, and headers in ldbl-128, ldbl-96 and ldbl-opt, suffices to cover every architecture except for cases where long double properties vary between different ABIs sharing a set of installed headers; fortunately all the ldbl-opt cases share a single compiler-predefined macro __LONG_DOUBLE_128__ that can be used to tell whether this compilation is -mlong-double-64 or -mlong-double-128. The two cases where a set of headers is shared between ABIs with different long double properties, MIPS (o32 has long double = double, other ABIs use ldbl-128) and SPARC (32-bit has optional long double, 64-bit has required long double), need their own bits/long-double.h headers. As with bits/wordsize.h, multiple-include protection for this header is generally implicit through the include guards on sys/cdefs.h, and multiple inclusion is harmless in any case. There is one subtlety: the header must not define __LONG_DOUBLE_MATH_OPTIONAL if __NO_LONG_DOUBLE_MATH was defined before its inclusion, because doing so breaks how sysdeps/ieee754/ldbl-opt/nldbl-compat.h defines __NO_LONG_DOUBLE_MATH itself before including system headers. Subject to keeping that working, it would be reasonable to move these macros from defined/undefined #ifdef to always-defined 1/0 #if semantics, but this patch does not attempt to do so, just rearranges where the macros are defined. After this patch, the only use of bits/mathdef.h is the alpha one for modifying complex function ABIs for old GCC. Thus, all versions of the header other than the default and alpha versions are removed, as is the include from math.h. Tested for x86_64 and x86. Also did compilation-only testing with build-many-glibcs.py. * bits/long-double.h: New file. * sysdeps/ieee754/ldbl-128/bits/long-double.h: Likewise. * sysdeps/ieee754/ldbl-96/bits/long-double.h: Likewise. * sysdeps/ieee754/ldbl-opt/bits/long-double.h: Likewise. * sysdeps/mips/bits/long-double.h: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/long-double.h: Likewise. * math/Makefile (headers): Add bits/long-double.h. * misc/sys/cdefs.h: Include <bits/long-double.h>. * stdlib/strtold.c: Include <bits/long-double.h> instead of <bits/wordsize.h>. * bits/mathdef.h [!_COMPLEX_H]: Do not allow inclusion. [!__NO_LONG_DOUBLE_MATH]: Remove conditional code. * math/math.h: Do not include <bits/mathdef.h>. * sysdeps/aarch64/bits/mathdef.h: Remove file. * sysdeps/alpha/bits/mathdef.h [!_COMPLEX_H]: Do not allow inclusion. * sysdeps/ia64/bits/mathdef.h: Remove file. * sysdeps/m68k/m680x0/bits/mathdef.h: Likewise. * sysdeps/mips/bits/mathdef.h: Likewise. * sysdeps/powerpc/bits/mathdef.h: Likewise. * sysdeps/s390/bits/mathdef.h: Likewise. * sysdeps/sparc/bits/mathdef.h: Likewise. * sysdeps/x86/bits/mathdef.h: Likewise. * sysdeps/s390/s390-32/bits/wordsize.h [!__NO_LONG_DOUBLE_MATH && !__LONG_DOUBLE_MATH_OPTIONAL]: Remove conditional code. * sysdeps/s390/s390-64/bits/wordsize.h [!__NO_LONG_DOUBLE_MATH && !__LONG_DOUBLE_MATH_OPTIONAL]: Likewise. * sysdeps/unix/sysv/linux/alpha/bits/wordsize.h [!__NO_LONG_DOUBLE_MATH && !__LONG_DOUBLE_MATH_OPTIONAL]: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/wordsize.h [!__NO_LONG_DOUBLE_MATH && !__LONG_DOUBLE_MATH_OPTIONAL]: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/wordsize.h [!__NO_LONG_DOUBLE_MATH && !__LONG_DOUBLE_MATH_OPTIONAL]: Likewise.
2016-12-02Add llogb, llogbf, llogbl.Joseph Myers
TS 18661-1 defines llogb functions that are like ilogb except that they return long int instead of int. Corresponding FP_LLOGB* macros are defined, whose values are required to have the obvious correspondence to those of the FP_ILOGB* macros. This patch implements these functions and macros for glibc. llogb uses the type-generic infrastructure, with an implementation similar to the wrapper for ilogb but with additional conversion from FP_ILOGB* to FP_LLOGB*; this approach avoids needing to modify or duplicate any of the architecture-specific ilogb implementations. Tests are also based on those for ilogb. Ideally the llogb functions would alias the ilogb ones when long is 32-bit, but such aliasing requires the associated header declarations of the different-type alias to be hidden, typically by defining macros before including the header (see e.g. how sysdeps/ieee754/dbl-64/wordsize-64/s_llround.c defines lround to __hidden_lround before including <math.h>). The infrastructure for type-generic function implementations does not support defining such macros at present (since C code can't define a macro whose name is determined by other macros). So this patch leaves them as separate functions (similar to e.g. scalbln and scalbn being separate in such a case as well), but with the remapping of FP_ILOGB* to FP_LLOGB* conditioned out in the case where it would be the identity map. Tested for x86_64, x86, mips64 and powerpc. * math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (llogb): New declaration. * math/tgmath.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (llogb): New macro. * math/math.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (__FP_LONG_MAX): New macro. [__GLIBC_USE (IEC_60559_BFP_EXT)] (FP_LLOGB0): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (FP_LLOGBNAN): Likewise. * math/Versions (llogb): New libm symbol at version GLIBC_2.25. (llogbf): Likewise. (llogbl): Likewise. * math/Makefile (gen-libm-calls): Add w_llogbF. (tests): Add test-fp-llogb-constants. * math/w_llogb_template.c: New file. Based on math/w_ilogb_template.c. * math/libm-test.inc (llogb_test_data): New array. (llogb_test): New function. (main): Call llogb_test. * math/test-fp-llogb-constants.c: New file. Based on math/test-fp-ilogb-constants.c. * math/test-tgmath-ret.c (llogb): New CHECK_RET_CONST call. (do_test): Call check_return_llogb. * math/test-tgmath.c (NCALLS): Increase to 126. (F(compile_test)): Call llogb. (F(llogb)): New function. * manual/math.texi (Exponents and Logarithms): Document llogb, llogbf, llogbl, FP_LLOGB0 and FP_LLOGBNAN. * manual/libm-err-tab.pl (@all_functions): Add llogb. * sysdeps/ieee754/ldbl-opt/nldbl-llogb.c: New file. * sysdeps/ieee754/ldbl-opt/w_llogbl.c: Likewise. * sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add llogb. (CFLAGS-nldbl-llogb.c): New variable. * 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.
2016-12-01Refactor FP_ILOGB* out of bits/mathdef.h.Joseph Myers
Continuing the refactoring of bits/mathdef.h, this patch stops it defining FP_ILOGB0 and FP_ILOGBNAN, moving the required information to a new header bits/fp-logb.h. There are only two possible values of each of those macros permitted by ISO C. TS 18661-1 adds corresponding macros for llogb, and their values are required to correspond to those of the ilogb macros in the obvious way. Thus two boolean values - for which the same choices are correct for most architectures - suffice to determine the value of all these macros, and by defining macros for those boolean values in bits/fp-logb.h we can then define the public FP_* macros in math.h and avoid the present duplication of the associated feature test macro logic. This patch duly moves to bits/fp-logb.h defining __FP_LOGB0_IS_MIN and __FP_LOGBNAN_IS_MIN. Default definitions of those to 0 are correct for both architectures, while ia64, m68k and x86 get their own versions of bits/fp-logb.h to reflect their use of values different from the defaults. The patch renders many copies of bits/mathdef.h trivial (needed only to avoid the default __NO_LONG_DOUBLE_MATH). I'll revise <https://sourceware.org/ml/libc-alpha/2016-11/msg00865.html> accordingly so that it removes all bits/mathdef.h headers except the default one and the alpha one, and arranges for the header to be included only by complex.h as the only remaining use at that point will be for the alpha ABI issues there. Tested for x86_64 and x86. Also did compile-only testing with build-many-glibcs.py (using glibc sources from before the commit that introduced many build failures with undefined __GI___sigsetjmp). * bits/fp-logb.h: New file. * sysdeps/ia64/bits/fp-logb.h: Likewise. * sysdeps/m68k/m680x0/bits/fp-logb.h: Likewise. * sysdeps/x86/bits/fp-logb.h: Likewise. * math/Makefile (headers): Add bits/fp-logb.h. * math/math.h: Include <bits/fp-logb.h>. [__USE_ISOC99] (FP_ILOGB0): Define based on __FP_LOGB0_IS_MIN. [__USE_ISOC99] (FP_ILOGBNAN): Define based on __FP_LOGBNAN_IS_MIN. * bits/mathdef.h (FP_ILOGB0): Remove. (FP_ILOGBNAN): Likewise. * sysdeps/aarch64/bits/mathdef.h (FP_ILOGB0): Likewise. (FP_ILOGBNAN): Likewise. * sysdeps/alpha/bits/mathdef.h (FP_ILOGB0): Likewise. (FP_ILOGBNAN): Likewise. * sysdeps/ia64/bits/mathdef.h (FP_ILOGB0): Likewise. (FP_ILOGBNAN): Likewise. * sysdeps/m68k/m680x0/bits/mathdef.h (FP_ILOGB0): Likewise. (FP_ILOGBNAN): Likewise. * sysdeps/mips/bits/mathdef.h (FP_ILOGB0): Likewise. (FP_ILOGBNAN): Likewise. * sysdeps/powerpc/bits/mathdef.h (FP_ILOGB0): Likewise. (FP_ILOGBNAN): Likewise. * sysdeps/s390/bits/mathdef.h (FP_ILOGB0): Likewise. (FP_ILOGBNAN): Likewise. * sysdeps/sparc/bits/mathdef.h (FP_ILOGB0): Likewise. (FP_ILOGBNAN): Likewise. * sysdeps/x86/bits/mathdef.h (FP_ILOGB0): Likewise. (FP_ILOGBNAN): Likewise.
2016-11-29Refactor FP_FAST_* into bits/fp-fast.h.Joseph Myers
Continuing the refactoring of bits/mathdef.h, this patch moves the FP_FAST_* definitions into a new bits/fp-fast.h header. Currently this is only for FP_FAST_FMA*, but in future it would be the appropriate place for the FP_FAST_* macros from TS 18661-1 as well. The generic bits/mathdef.h header defines these macros based on whether the compiler defines __FP_FAST_*. Most architecture-specific headers, however, fail to do so, meaning that if the architecture (or some particular processors) does in fact have fused operations, and GCC knows to use them inline, the FP_FAST_* macros will still not be defined. By refactoring, this patch causes the generic version (based on __FP_FAST_*) to be used in more cases, and so the macro definitions to be more accurate. Architectures that already defined some or all of these macros other than based on the predefines have their own versions of fp-fast.h, which are arranged so they define FP_FAST_* if either the architecture-specific conditions are true or __FP_FAST_* are defined. After this refactoring, various bits/mathdef.h headers for architectures with long double = double are semantically identical to the generic version. The patch removes those headers that are redundant. (In fact two of the four removed were already redundant before this patch because they did use __FP_FAST_*.) Tested for x86_64 and x86, and compilation-only with build-many-glibcs.py. * bits/fp-fast.h: New file. * sysdeps/aarch64/bits/fp-fast.h: Likewise. * sysdeps/powerpc/bits/fp-fast.h: Likewise. * math/Makefile (headers): Add bits/fp-fast.h. * math/math.h: Include <bits/fp-fast.h>. * bits/mathdef.h (FP_FAST_FMA): Remove. (FP_FAST_FMAF): Likewise. (FP_FAST_FMAL): Likewise. * sysdeps/aarch64/bits/mathdef.h (FP_FAST_FMA): Likewise. (FP_FAST_FMAF): Likewise. * sysdeps/powerpc/bits/mathdef.h (FP_FAST_FMA): Likewise. (FP_FAST_FMAF): Likewise. * sysdeps/x86/bits/mathdef.h (FP_FAST_FMA): Likewise. (FP_FAST_FMAF): Likewise. (FP_FAST_FMAL): Likewise. * sysdeps/arm/bits/mathdef.h: Remove file. * sysdeps/hppa/fpu/bits/mathdef.h: Likewise. * sysdeps/sh/sh4/bits/mathdef.h: Likewise. * sysdeps/tile/bits/mathdef.h: Likewise.
2016-11-24Refactor float_t, double_t information into bits/flt-eval-method.h.Joseph Myers
At present, definitions of float_t and double_t are split among many bits/mathdef.h headers. For all but three architectures, these types are float and double. Furthermore, if you assume __FLT_EVAL_METHOD__ to be defined, that provides a more generic way of determining the correct values of these typedefs. Defining these typedefs more generally based on __FLT_EVAL_METHOD__ was previously proposed by Paul Eggert in <https://sourceware.org/ml/libc-alpha/2012-02/msg00002.html>. This patch refactors things in the way I proposed in <https://sourceware.org/ml/libc-alpha/2016-11/msg00745.html>. A new header bits/flt-eval-method.h defines a single macro, __GLIBC_FLT_EVAL_METHOD, which is then used by math.h to define float_t and double_t. The default is based on __FLT_EVAL_METHOD__ (although actually a default to 0 would have the same effect for current ports, because ports where values other than 0 or 16 are possible all have their own headers). To avoid changing the existing semantics in any case, including for compilers not defining __FLT_EVAL_METHOD__, architecture-specific files are then added for m68k, s390, x86 which replicate the existing semantics. At least with __FLT_EVAL_METHOD__ values possible with GCC, there should be no change to the choices of float_t and double_t for any supported configuration. Architecture maintainer notes: * m68k: sysdeps/m68k/m680x0/bits/flt-eval-method.h always defines __GLIBC_FLT_EVAL_METHOD to 2 to replicate the existing logic. But actually GCC defines __FLT_EVAL_METHOD__ to 0 if TARGET_68040. It might make sense to make the header prefer to base things on __FLT_EVAL_METHOD__ if defined, like the x86 version, and so make the choices of these types more accurate (with a NEWS entry as for the other changes to these types on particular architectures). * s390: sysdeps/s390/bits/flt-eval-method.h always defines __GLIBC_FLT_EVAL_METHOD to 1 to replicate the existing logic. As previously discussed, it might make sense in coordination with GCC to eliminate the historic mistake, avoid excess precision in the -fexcess-precision=standard case and make the typedefs match (with a NEWS entry, again). Tested for x86-64 and x86. Also did compilation-only testing with build-many-glibcs.py. * bits/flt-eval-method.h: New file. * sysdeps/m68k/m680x0/bits/flt-eval-method.h: Likewise. * sysdeps/s390/bits/flt-eval-method.h: Likewise. * sysdeps/x86/bits/flt-eval-method.h: Likewise. * math/Makefile (headers): Add bits/flt-eval-method.h. * math/math.h: Include <bits/flt-eval-method.h>. [__USE_ISOC99] (float_t): Define based on __GLIBC_FLT_EVAL_METHOD. [__USE_ISOC99] (double_t): Likewise. * bits/mathdef.h (float_t): Remove. (double_t): Likewise. * sysdeps/aarch64/bits/mathdef.h (float_t): Likewise. (double_t): Likewise. * sysdeps/alpha/bits/mathdef.h (float_t): Likewise. (double_t): Likewise. * sysdeps/arm/bits/mathdef.h (float_t): Likewise. (double_t): Likewise. * sysdeps/hppa/fpu/bits/mathdef.h (float_t): Likewise. (double_t): Likewise. * sysdeps/ia64/bits/mathdef.h (float_t): Likewise. (double_t): Likewise. * sysdeps/m68k/m680x0/bits/mathdef.h (float_t): Likewise. (double_t): Likewise. * sysdeps/mips/bits/mathdef.h (float_t): Likewise. (double_t): Likewise. * sysdeps/powerpc/bits/mathdef.h (float_t): Likewise. (double_t): Likewise. * sysdeps/s390/bits/mathdef.h (float_t): Likewise. (double_t): Likewise. * sysdeps/sh/sh4/bits/mathdef.h (float_t): Likewise. (double_t): Likewise. * sysdeps/sparc/bits/mathdef.h (float_t): Likewise. (double_t): Likewise. * sysdeps/tile/bits/mathdef.h (float_t): Likewise. (double_t): Likewise. * sysdeps/x86/bits/mathdef.h (float_t): Likewise. (double_t): Likewise.
2016-11-10Refactor some libm type-generic macros.Joseph Myers
This patch refactors some type-generic libm macros, in both math.h and math_private.h, to be based on a common __MATH_TG macro rather than all replicating similar logic to choose a function to call based on the type of the argument. This should serve to illustrate what I think float128 support for such macros should look like: common macros such as __MATH_TG may need different definitions depending on whether float128 is supported in glibc, so that the individual macros themselves do not need conditionals on float128 support. Tested for x86_64, x86, mips64 and powerpc. * math/math.h (__MATH_TG): New macro. [__USE_ISOC99] (fpclassify): Define using __MATH_TG. [__USE_ISOC99] (signbit): Likewise. [__USE_ISOC99] (isfinite): Likewise. [__USE_ISOC99] (isnan): Likewise. [__USE_ISOC99] (isinf): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (issignaling): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (__MATH_EVAL_FMT2): New macro. [__GLIBC_USE (IEC_60559_BFP_EXT)] (iseqsig): Define using __MATH_TG and __MATH_EVAL_FMT2. * sysdeps/generic/math_private.h (fabs_tg): Define using __MATH_TG. * sysdeps/ieee754/ldbl-128ibm/bits/iscanonical.h [!__NO_LONG_DOUBLE_MATH] (__iscanonicalf): New macro. [!__NO_LONG_DOUBLE_MATH] (__iscanonical): Likewise. [!__NO_LONG_DOUBLE_MATH] (iscanonical): Define using __MATH_TG. * sysdeps/ieee754/ldbl-96/bits/iscanonical.h (__iscanonicalf): New macro. (__iscanonical): Likewise. (iscanonical): Define using __MATH_TG.
2016-10-28Add SNAN, SNANF, SNANL macros.Joseph Myers
TS 18661-1 defines SNAN macros for signaling NaN values, suitable for use in static initializers. This patch adds them to glibc's <math.h> (provided you are building with GCC 3.3 or later; no attempt is made to provide any kind of nonconforming fallback for older compilers without the __builtin_nans functions). Tested for x86_64 and x86. * math/math.h [__GLIBC_USE (IEC_60559_BFP_EXT) && __GNUC_PREREQ (3, 3)] (SNANF): New macro. [__GLIBC_USE (IEC_60559_BFP_EXT) && __GNUC_PREREQ (3, 3)] (SNAN): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT) && __GNUC_PREREQ (3, 3)] (SNANL): Likewise. * manual/arith.texi (Infinity and NaN): Document SNANF, SNAN and SNANL. * math/test-double.h (snan_value_MACRO): New macro. * math/test-float.h (snan_value_MACRO): Likewise. * math/test-ldouble.h (snan_value_MACRO): Likewise. * math/libm-test.inc (issignaling_test_data): Add tests of snan_value_MACRO.
2016-10-22math.h: Wrap C++ bits in extern "C++"Florian Weimer
It is still common to include system header files in an extern "C" block. This means that exiting <math.h>'s own extern "C" block is not sufficient to get back to C++ mode. Use an extern "C++" wrapper instead.
2016-10-21math: Define iszero as a function template for C++ [BZ #20715]Florian Weimer
This increases compatibility with C++ code which is forced to compile with _GNU_SOURCE.
2016-10-07Make iseqsig handle excess precision.Joseph Myers
iseqsig, like other type-generic comparison macros, should behave like a comparison operator in not removing excess range and precision from its arguments (see C11 F.10.11). This patch implements this by making definitions of iseqsig appropriately conditional on __FLT_EVAL_METHOD__ (including support for TS 18661-3 values of that macro), with a corresponding testcase (that failed for 32-bit x86 in the absence of the math.h changes) being added. (Of course the definitions may need reworking when float128 support is added, just as with other type-generic macros.) Tested for x86_64 and x86. * math/math.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (iseqsig): Define conditional on value of [__FLT_EVAL_METHOD__]. * math/test-iseqsig-excess-precision.c: New file. * math/Makefile (tests): Add test-iseqsig-excess-precision.
2016-10-06Add iseqsig.Joseph Myers
TS 18661-1 adds an iseqsig type-generic comparison macro to <math.h>. This macro is like the == operator except that unordered operands result in the "invalid" exception and errno being set to EDOM. This patch implements this macro for glibc. Given the need to set errno, this is implemented with out-of-line functions __iseqsigf, __iseqsig and __iseqsigl (of which the last only exists at all if long double is ABI-distinct from double, so no function aliases or compat support are needed). The present patch ignores excess precision issues; I intend to deal with those in a followup patch. (Like comparison operators, type-generic comparison macros should *not* convert operands to their semantic types but should preserve excess range and precision, meaning that for some argument types and values of FLT_EVAL_METHOD, an underlying function should be called for a wider type than that of the arguments.) The underlying functions are implemented with the type-generic template machinery. Comparing x <= y && x >= y is sufficient in ISO C to achieve an equality comparison with "invalid" raised for unordered operands (and the results of those two comparisons can also be used to tell whether errno needs to be set). However, some architectures have GCC bugs meaning that unordered comparison instructions are used instead of ordered ones. Thus, a mechanism is provided for architectures to use an explicit call to feraiseexcept to raise exceptions if required. If your architecture has such a bug you should add a fix-fp-int-compare-invalid.h header for it, with a comment pointing to the relevant GCC bug report; if such a GCC bug is fixed, that header's contents should have a __GNUC_PREREQ conditional added so that the workaround can eventually be removed for that architecture. Tested for x86_64, x86, mips64, arm and powerpc. * math/math.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (iseqsig): New macro. * math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (__iseqsig): New declaration. * math/s_iseqsig_template.c: New file. * math/Versions (__iseqsigf): New libm symbol at version GLIBC_2.25. (__iseqsig): Likewise. (__iseqsigl): Likewise. * math/libm-test.inc (iseqsig_test_data): New array. (iseqsig_test): New function. (main): Call iseqsig_test. * math/Makefile (gen-libm-calls): Add s_iseqsigF. * manual/arith.texi (FP Comparison Functions): Document iseqsig. * manual/libm-err-tab.pl: Update comment on interfaces without ulps tabulated. * sysdeps/generic/fix-fp-int-compare-invalid.h: New file. * sysdeps/powerpc/fpu/fix-fp-int-compare-invalid.h: Likewise. * sysdeps/x86/fpu/fix-fp-int-compare-invalid.h: Likewise. * 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.
2016-09-30Add iscanonical.Joseph Myers
TS 18661-1 adds an iscanonical classification macro to <math.h>. The motivation for this is decimal floating-point, where some values have both canonical and noncanonical encodings. For IEEE binary interchange formats, all encodings are canonical. For x86/m68k ldbl-96, and for ldbl-128ibm, there are encodings that do not represent any valid value of the type; although formally iscanonical does not need to handle trap representations (and so could just always return 1), it seems useful, and in line with the description in the TS of "representations that are extraneous to the floating-point model" as being non-canonical (as well as "redundant representations of some or all of its values"), for it to detect those representations and return 0 for them. This patch adds iscanonical to glibc. It goes in a header <bits/iscanonical.h>, included under appropriate conditions in <math.h>. The default header version just evaluates the argument (converted to its semantic type, though current GCC will probably discard that conversion and any exceptions resulting from it) and returns 1. ldbl-96 and ldbl-128ibm then have versions of the header that call a function __iscanonicall for long double (the sizeof-based tests will of course need updating for float128 support, like other such type-generic macro implementations). The ldbl-96 version of __iscanonicall has appropriate conditionals to reflect the differences in the m68k version of that format (where the high mantissa bit may be either 0 or 1 when the exponent is 0 or 0x7fff). Corresponding tests for those formats are added as well. Other architectures do not have any new functions added because just returning 1 is correct for all their floating-point formats. Tested for x86_64, x86, mips64 (to test the default macro version) and powerpc. * math/math.h [__GLIBC_USE (IEC_60559_BFP_EXT)]: Include <bits/iscanonical.h>. * bits/iscanonical.h: New file. * math/s_iscanonicall.c: Likewise. * math/Versions (__iscanonicall): New libm symbol at version GLIBC_2.25. * math/libm-test.inc (iscanonical_test_data): New array. (iscanonical_test): New function. (main): Call iscanonical_test. * math/Makefile (headers): Add bits/iscanonical.h. (type-ldouble-routines): Add s_iscanonicall. * manual/arith.texi (Floating Point Classes): Document iscanonical. * manual/libm-err-tab.pl: Update comment on interfaces without ulps tabulated. * sysdeps/ieee754/ldbl-128ibm/bits/iscanonical.h: New file. * sysdeps/ieee754/ldbl-128ibm/s_iscanonicall.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/test-iscanonical-ldbl-128ibm.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/Makefile (tests): Add test-iscanonical-ldbl-128ibm. * sysdeps/ieee754/ldbl-96/bits/iscanonical.h: New file. * sysdeps/ieee754/ldbl-96/s_iscanonicall.c: Likewise. * sysdeps/ieee754/ldbl-96/test-iscanonical-ldbl-96.c: Likewise. * sysdeps/ieee754/ldbl-96/Makefile: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Update. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/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/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
2016-09-28Fix iszero for excess precision.Joseph Myers
Floating-point classification macros are supposed to remove any excess range or precision from their arguments. This patch fixes the non-sNaN version of iszero to do so, by casting the argument to its own type. (This will of course work only for standard-conforming excess precision, not for what GCC does on 32-bit x86 by default where the back end hides excess precision from the front end; the same applies to most of the classification macros in that case, as showed up when we made them use GCC built-in functions.) (iseqsig will have the reverse issue, needing to ensure that when an underlying function is used it's for a type wide enough not to remove any excess precision, since comparison macros must not remove excess precision.) Tested for x86_64 and x86. * math/math.h [__GLIBC_USE (IEC_60559_BFP_EXT) && !__SUPPORT_SNAN__] (iszero): Cast argument to its own type. * math/test-iszero-excess-precision.c: New file. * math/Makefile (tests): Add test-iszero-excess-precision. (CFLAGS-test-iszero-excess-precision.c): New variable.
2016-09-23Add iszero.Joseph Myers
TS 18661-1 adds an iszero classification macro to <math.h>. This patch implements it for glibc. There are no new underlying functions in libm because the implementation uses fpclassify when sNaN support is required and a direct comparison otherwise; any optimizations for this macro should be done through adding __builtin_iszero in GCC and using it in the header for suitable GCC versions, not through adding other optimized inline or out-of-line versions to glibc. Tested for x86_64 and x86. * math/math.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (iszero): New macro. * math/libm-test.inc (iszero_test_data): New array. (iszero_test): New function. (main): Call iszero_test. * manual/arith.texi (Floating Point Classes): Document iszero. * manual/libm-err-tab.pl: Update comment on interfaces without ulps tabulated.
2016-09-21Add issubnormal.Joseph Myers
TS 18661-1 adds an issubnormal classification macro to <math.h>. This patch implements it for glibc. There are no new underlying functions in libm because the implementation uses fpclassify; any optimizations for this macro should be done through adding __builtin_subnormal in GCC and using it in the header for suitable GCC versions, not through adding other optimized inline or out-of-line versions to glibc. The intended structure of the NEWS entry for <math.h> features from TS 18661-1 is like: * New <math.h> features are added from TS 18661-1:2014: - Nearest integer functions: roundeven, roundevenf, roundevenl. - Comparison macros: iseqsig. - Classification macros: iscanonical, issubnormal, iszero. (that is, following the grouping of interfaces in TS 18661-1:2014, with any group where any interfaces are new in glibc 2.25 being listed like that). Tested for x86_64 and x86. * math/math.h [__GLIBC_USE (IEC_60559_BFP_EXT)] (issubnormal): New macro. * math/libm-test.inc (issubnormal_test_data): New array. (issubnormal_test): New function. * manual/arith.texi (Floating Point Classes): Document issubnormal. * manual/libm-err-tab.pl: Update comment on interfaces without ulps tabulated.
2016-08-05Fix math.h comment about bits/mathdef.h.Joseph Myers
math.h has a comment about definitions from <bits/mathdef.h>. This comment is in the wrong place in math.h, far below the inclusion of <bits/mathdef.h>. It was originally above the inclusion, but the inclusion was moved by 1998-11-05 Ulrich Drepper <drepper@cygnus.com> * math/math.h: Unconditionally include bits/mathdef.h. Declare long double functions only if __NO_LONG_DOUBLE_MATH is not defined. [...] without moving the comment. Furthermore, the comment refers incorrectly to FLT_EVAL_METHOD and DECIMAL_DIG, which are actually <float.h> macros, and INFINITY, which is in <bits/inf.h>. This patch moves the comment back above the include it refers to and removes the description of macros not defined by the header. Tested for x86_64 and x86 (testsuite, and that installed stripped shared libraries are unchanged by the patch). * math/math.h: Move comment about <bits/mathdef.h> definitions above inclusion of <bits/mathdef.h>. Do not mention FLT_EVAL_METHOD, INFINITY or DECIMAL_DIG in that comment.
2016-08-03Support __STDC_WANT_IEC_60559_BFP_EXT__ feature test macro.Joseph Myers
This patch implements support for the __STDC_WANT_IEC_60559_BFP_EXT__ feature test macro from ISO/IEC 18661-1:2014, following the __GLIBC_USE approach now used for __STDC_WANT_LIB_EXT2__. For this macro, the relevant consideration is whether it is defined or undefined when an affected header is included (not what its value is if defined, and not whether it's defined or undefined when any other unaffected system header is included). Currently this macro only affects the issignaling macro and the nextup and nextdown functions (so they can be enabled by defining this macro, not just by defining _GNU_SOURCE as previously). Any further features from this TS added in future would also be conditioned on this macro. Tested for x86_64 and x86 (testsuite, and that installed stripped shared libraries are unchanged by the patch). * bits/libc-header-start.h (__GLIBC_USE_IEC_60559_BFP_EXT): New macro. * include/features.h (__STDC_WANT_IEC_60559_BFP_EXT__): Document. * manual/arith.texi (issignaling): Document as ISO from TS 18661-1:2014. (nextup): Likewise. (nextupf): Likewise. (nextupl): Likewise. (nextdown): Likewise. (nextdownf): Likewise. (nextdownl): Likewise. * manual/creature.texi (__STDC_WANT_IEC_60559_BFP_EXT__): Document macro. * math/math.h: Define __GLIBC_INTERNAL_STARTING_HEADER_IMPLEMENTATION and include <bits/libc-header-start.h> instead of including <features.h>. (issignaling): Define if [__GLIBC_USE (IEC_60559_BFP_EXT)], not [__USE_GNU]. * math/bits/mathcalls.h (nextdown): Declare if [__GLIBC_USE (IEC_60559_BFP_EXT)], not [__USE_GNU]. (nextup): Likewise. (__issignaling): Likewise.
2016-01-04Update copyright dates with scripts/update-copyrights.Joseph Myers
2015-09-18Add inlining of the C99 math functions ↵Wilco Dijkstra
isinf/isnan/signbit/isfinite/isnormal/fpclassify using GCC built-ins when available. Since going through the PLT is expensive for these small functions, inlining results in major speedups (about 7x on Cortex-A57 for isinf). The GCC built-ins are not correct if signalling NaN support is required, and thus are turned off in that case (see GCC bug 66462). The test-snan.c tests sNaNs and so must be explicitly built with -fsignaling-nans. 2015-09-18 Wilco Dijkstra <wdijkstr@arm.com> [BZ #15367] [BZ #17441] * math/Makefile: Build test-snan.c with -fsignaling-nans. * math/math.h (fpclassify): Use __builtin_fpclassify when available. (signbit): Use __builtin_signbit(f/l). (isfinite): Use__builtin_isfinite. (isnormal): Use __builtin_isnormal. (isnan): Use __builtin_isnan. (isinf): Use __builtin_isinf_sign.
2015-09-15Fix math.h, tgmath.h XSI POSIX namespace (gamma, isnan, scalb) (bug 18967).Joseph Myers
math.h incorrectly declares various functions for XSI POSIX 2001 and 2008 editions. gamma was removed in the 2001 edition but is still declared, along with gammaf and gammal which were never standard functions. isnan is still declared as a function, along with isnanf and isnanl which were never standard functions, although in 2001 the function was replaced by the type-generic macro. scalbf and scalbl are declared although never standard, and scalb was removed in the 2008 edition but is still declared. The scalb type-generic macro in tgmath.h shouldn't be present for any POSIX version, since POSIX never had such a type-generic macro. This patch disables all those declarations in the relevant cases (as a minimal fix, it leaves them enabled for __USE_MISC). For the matter of declaring scalb but not scalbf or scalbl for the 2001 edition, a new macro __MATH_DECLARING_DOUBLE is added, defined by math.h around includes of bits/mathcalls.h, for bits/mathcalls.h to use to test which type's functions are being declared. Tested for x86_64 and x86 (testsuite, and that installed stripped shared libraries are unchanged by the patch). [BZ #18967] * math/math.h (__MATH_DECLARING_DOUBLE): New macro. Define and undefine around includes of <bits/mathcalls.h>. * math/bits/mathcalls.h [!__USE_MISC && __USE_XOPEN2K] (isnan): Do not declare function. [!__USE_MISC && __USE_XOPEN2K] (gamma): Likewise. [!__USE_MISC && (!__MATH_DECLARING_DOUBLE || __USE_XOPEN2K8)] (scalb): Likewise. * math/tgmath.h [!__USE_MISC && __USE_XOPEN_EXTENDED] (scalb): Do not define macro. * conform/Makefile (test-xfail-XOPEN2K/math.h/conform): Remove variable. (test-xfail-XOPEN2K/tgmath.h/conform): Likewise. (test-xfail-XOPEN2K8/math.h/conform): Likewise. (test-xfail-XOPEN2K8/tgmath.h/conform): Likewise.
2015-06-18Vector sincos for x86_64 and tests.Andrew Senkevich
Here is implementation of vectorized sincos containing SSE, AVX, AVX2 and AVX512 versions according to Vector ABI <https://groups.google.com/forum/#!topic/x86-64-abi/LmppCfN1rZ4>. * NEWS: Mention addition of x86_64 vector sincos. * bits/libm-simd-decl-stubs.h: Added stubs for sincos. * math/math.h (__MATHDECL_VEC): New macro. * math/bits/mathcalls.h: Added sincos declaration with __MATHDECL_VEC. * math/gen-libm-have-vector-test.sh: Added generation of sincos wrapper declaration under condition. * math/test-vec-loop.h (TEST_VEC_LOOP): Refactored. * math/test-double-vlen2.h: Added wrapper for sincos tests, reflected TEST_VEC_LOOP change. * math/test-double-vlen4.h: Likewise. * math/test-double-vlen8.h: Likewise. * math/test-float-vlen16.h: Reflected TEST_VEC_LOOP change. * math/test-float-vlen4.h: Likewise. * math/test-float-vlen8.h: Likewise. * sysdeps/unix/sysv/linux/x86_64/libmvec.abilist: New symbols added. * sysdeps/x86/fpu/bits/math-vector.h: Added sincos SIMD declaration. * sysdeps/x86_64/fpu/Makefile (libmvec-support): Added new files. * sysdeps/x86_64/fpu/Versions: New versions added. * sysdeps/x86_64/fpu/libm-test-ulps: Regenerated. * sysdeps/x86_64/fpu/multiarch/Makefile (libmvec-sysdep_routines): Added build of SSE, AVX2 and AVX512 IFUNC versions. * sysdeps/x86_64/fpu/multiarch/svml_d_sincos2_core.S: New file. * sysdeps/x86_64/fpu/multiarch/svml_d_sincos2_core_sse4.S: New file. * sysdeps/x86_64/fpu/multiarch/svml_d_sincos4_core.S: New file. * sysdeps/x86_64/fpu/multiarch/svml_d_sincos4_core_avx2.S: New file. * sysdeps/x86_64/fpu/multiarch/svml_d_sincos8_core.S: New file. * sysdeps/x86_64/fpu/multiarch/svml_d_sincos8_core_avx512.S: New file. * sysdeps/x86_64/fpu/svml_d_sincos2_core.S: New file. * sysdeps/x86_64/fpu/svml_d_sincos4_core.S: New file. * sysdeps/x86_64/fpu/svml_d_sincos4_core_avx.S: New file. * sysdeps/x86_64/fpu/svml_d_sincos8_core.S: New file. * sysdeps/x86_64/fpu/svml_d_sincos_data.S: New file. * sysdeps/x86_64/fpu/svml_d_sincos_data.h: New file. * sysdeps/x86_64/fpu/svml_d_wrapper_impl.h: Added wrappers for sincos. * sysdeps/x86_64/fpu/test-double-vlen2-wrappers.c: Vector sincos tests. * sysdeps/x86_64/fpu/test-double-vlen2.c: Likewise. * sysdeps/x86_64/fpu/test-double-vlen4-avx2-wrappers.c: Likewise. * sysdeps/x86_64/fpu/test-double-vlen4-avx2.c: Likewise. * sysdeps/x86_64/fpu/test-double-vlen4-wrappers.c: Likewise. * sysdeps/x86_64/fpu/test-double-vlen4.c: Likewise. * sysdeps/x86_64/fpu/test-double-vlen8-wrappers.c: Likewise. * sysdeps/x86_64/fpu/test-double-vlen8.c: Likewise.
2015-05-14This patch adds infrastructure for addition of SIMDAndrew Senkevich
declarations for math functions in math.h. Added new headers math-vector.h (only generic version for now) and libm-simd-decl-stubs.h with empty definitions required for proper unfolding of new macros __MATHCALL_VEC which will be used for declaration of vector math functions. 2015-05-14 Andrew Senkevich <andrew.senkevich@intel.com> * bits/math-vector.h: New file. * bits/libm-simd-decl-stubs.h: New header. * math/Makefile (headers): Added new header libm-simd-decl-stubs.h. * math/math.h (__MATHCALL_VEC): New macro.
2015-01-02Update copyright dates with scripts/update-copyrights.Joseph Myers
2014-09-30stdlib/tst-strtod-round.c: Fix build on ARMWill Newton
Building this test on ARM fails because the prototypes for the long double variants of the math functions are unavailable. Add an additional include guard to math.h that enables long double math function declarations if _LIBC_TEST is defined and define _LIBC_TEST in stdlib/tst-strtod-round.c. ChangeLog: 2014-09-30 Will Newton <will.newton@linaro.org> * math/math.h: Define long double math functions if _LIBC_TEST is defined. * stdlib/tst-strtod-round.c: Define _LIBC_TEST.
2014-02-21Complete _BSD_SOURCE / _SVID_source followup cleanup.Joseph Myers
This patch completes the headers cleanup consequent on removal of _BSD_SOURCE and _SVID_SOURCE (apart from any subsequent deprecations): * #endif conditionals that referred to BSD or SVID are updated. * Redundant __USE_* tests in cases involving __USE_MISC are removed. This includes cases such as __USE_MISC || __USE_ISOC99, where __USE_MISC is redundant (because __USE_MISC is only ever defined in the default / _DEFAULT_SOURCE / _GNU_SOURCE case, when __USE_ISOC99 is also defined; the same applies to the non-XSI-extended POSIX versions), and cases involving __USE_GNU, where __USE_GNU is redundant (because if __USE_GNU is defined, so are the other __USE_* macros). There may well be other cases of __USE_FOO || __USE_BAR tests that could be simplified because one macro implies the other; this patch only addresses cases involving __USE_MISC. Tested x86_64. * bits/fcntl.h [__USE_MISC]: Remove redundant conditionals. * bits/sigaction.h [__USE_MISC]: Likewise. * bits/waitstatus.h: Update #endif comments. * ctype/ctype.h: Likewise. * dirent/dirent.h: Likewise. [__USE_MISC]: Remove redundant conditionals. * grp/grp.h: Update #endif comments. [__USE_GNU]: Remove redundant conditionals. [__USE_MISC]: Likewise. * inet/netinet/in.h [__USE_GNU]: Likewise. * io/sys/stat.h [__USE_MISC]: Likewise. * libio/bits/stdio-ldbl.h [__USE_MISC]: Likewise. * libio/bits/stdio.h: Update #endif comments. [__USE_MISC]: Remove redundant conditionals. * libio/bits/stdio2.h [__USE_MISC]: Likewise. * libio/stdio.h: Update #endif comments. [__USE_MISC]: Remove redundant conditionals. * math/bits/math-finite.h [__USE_MISC]: Likewise. * math/bits/mathcalls.h [__USE_MISC]: Likewise. * math/math.h: Update #else and #endif comments. [__USE_MISC]: Remove redundant conditionals. * misc/sys/uio.h: Update #endif comments. * posix/bits/unistd.h [__USE_MISC]: Remove redundant conditionals. * posix/glob.h [__USE_MISC]: Likewise. * posix/sys/types.h: Update #endif comments. [__USE_MISC]: Remove redundant conditionals. * posix/sys/wait.h: Update #endif comments. [__USE_MISC]: Remove redundant conditionals. * posix/unistd.h: Update #endif comments. [__USE_MISC]: Remove redundant conditionals. * pwd/pwd.h [__USE_GNU]: Likewise. [__USE_MISC]: Likewise. * resolv/netdb.h [__USE_GNU]: Likewise. * signal/signal.h: Update #endif comments. [__USE_MISC]: Remove redundant conditionals. * stdlib/stdlib.h: Update #else and #endif comments. [__USE_MISC]: Remove redundant conditionals. [__USE_GNU]: Likewise. * string/bits/string2.h [__USE_MISC]: Likewise. * string/string.h: Update #endif comments. [__USE_MISC]: Remove redundant conditionals. * sysdeps/m68k/m680x0/fpu/bits/mathinline.h [__USE_MISC]: Likewise. * sysdeps/mach/hurd/bits/fcntl.h [__USE_MISC]: Likewise. * sysdeps/mach/hurd/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/alpha/bits/sigaction.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/alpha/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/bits/fcntl-linux.h: Update #endif comments. [__USE_MISC]: Remove redundant conditionals. * sysdeps/unix/sysv/linux/bits/in.h [__USE_GNU]: Likewise. * sysdeps/unix/sysv/linux/bits/sigaction.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/bits/socket.h [__USE_GNU]: Likewise. * sysdeps/unix/sysv/linux/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/ia64/bits/sigaction.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/m68k/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/mips/bits/sigaction.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/mips/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/s390/bits/sigaction.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/s390/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/sigaction.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/unix/sysv/linux/x86/bits/stat.h [__USE_MISC]: Likewise. * sysdeps/x86/bits/string.h: Update #endif comments. * sysdeps/x86/fpu/bits/mathinline.h [__USE_MISC]: Remove redundant conditionals. * time/sys/time.h: Update #endif comments. * time/time.h: Likewise. [__USE_MISC]: Remove redundant conditionals.
2014-02-12Combine __USE_BSD and __USE_SVID into __USE_MISC.Joseph Myers
This patch cleans up following the obsoletion of _BSD_SOURCE and _SVID_SOURCE by combining __USE_BSD and __USE_SVID into __USE_MISC. The only non-mechanical part of this patch is the changes to features.h; everything else is simple substitution of __USE_MISC for the old macros. Thus, this patch leaves obviously redundant conditionals such as "defined __USE_MISC || defined __USE_MISC", and does not update #endif comments where they referred to BSD or SVID in words instead of the literal macro name. This is intended to facilitate patch review by separating the less mechanical changes from these purely mechanical changes into a separate patch. (I do intend to integrate all the changes from <https://sourceware.org/ml/libc-alpha/2013-12/msg00226.html>, which I believe includes all the trailing comment updates, in subsequent patches.) Tested x86_64. * include/features.h (__USE_BSD): Remove macro definitions. (__USE_SVID): Likewise. (_BSD_SOURCE): Likewise. (_SVID_SOURCE): Likewise. [!defined _BSD_SOURCE && !defined _SVID_SOURCE]: Remove condition from definition of _DEFAULT_SOURCE. [_BSD_SOURCE || _SVID_SOURCE]: Change condition to [_DEFAULT_SOURCE]. * bits/fcntl.h [__USE_BSD]: Change condition to [__USE_MISC]. * bits/mman.h [__USE_BSD]: Likewise. * bits/termios.h [__USE_BSD]: Likewise. * bits/waitstatus.h [__USE_BSD]: Likewise. * ctype/ctype.h [__USE_SVID]: Likewise. * dirent/dirent.h [__USE_BSD]: Likewise. * grp/grp.h [__USE_SVID]: Likewise. [__USE_BSD]: Likewise. * inet/netinet/igmp.h [__USE_BSD]: Likewise. * io/fcntl.h [__USE_BSD]: Likewise. * io/ftw.h [__USE_BSD]: Likewise. * io/sys/stat.h [__USE_BSD]: Likewise. * libio/bits/stdio-ldbl.h [__USE_BSD]: Likewise. * libio/bits/stdio2.h [__USE_BSD]: Likewise. * libio/stdio.h [__USE_SVID]: Likewise. [__USE_BSD]: Likewise. * math/math.h [__USE_SVID]: Likewise. [__USE_BSD]: Likewise. * misc/bits/syslog-ldbl.h [__USE_BSD]: Likewise. * misc/bits/syslog.h [__USE_BSD]: Likewise. * misc/search.h [__USE_SVID]: Likewise. * misc/sys/mman.h [__USE_BSD]: Likewise. * misc/sys/syslog.h [__USE_BSD]: Likewise. * misc/sys/uio.h [__USE_BSD]: Likewise. * posix/bits/unistd.h [__USE_BSD]: Likewise. * posix/glob.h [__USE_BSD]: Likewise. * posix/regex.h [__USE_BSD]: Likewise. * posix/sys/types.h [__USE_BSD]: Likewise. [__USE_SVID]: Likewise. * posix/sys/utsname.h [__USE_SVID]: Likewise. * posix/sys/wait.h [__USE_BSD]: Likewise. [__USE_SVID]: Likewise. * posix/unistd.h [__USE_BSD]: Likewise. [__USE_SVID]: Likewise. * pwd/pwd.h [__USE_SVID]: Likewise. * resolv/netdb.h [__USE_BSD]: Likewise. * setjmp/setjmp.h [__USE_BSD]: Likewise. * signal/signal.h [__USE_BSD]: Likewise. [__USE_SVID]: Likewise. * socket/sys/socket.h [__USE_BSD]: Likewise. * stdlib/fmtmsg.h [__USE_SVID]: Likewise. * stdlib/stdlib.h [__USE_BSD]: Likewise. [__USE_SVID]: Likewise. * string/bits/string2.h [__USE_BSD]: Likewise. [__USE_SVID]: Likewise. * string/bits/string3.h [__USE_BSD]: Likewise. * string/endian.h [__USE_BSD]: Likewise. * string/string.h [__USE_SVID]: Likewise. [__USE_BSD]: Likewise. * string/strings.h [__USE_BSD]: Likewise. * sysdeps/generic/netinet/ip.h [__USE_BSD]: Likewise. * sysdeps/gnu/netinet/ip_icmp.h [__USE_BSD]: Likewise. * sysdeps/mach/hurd/bits/fcntl.h [__USE_BSD]: Likewise. * sysdeps/mach/hurd/bits/stat.h [__USE_BSD]: Likewise. * sysdeps/unix/sysv/linux/alpha/bits/mman.h [__USE_BSD]: Likewise. * sysdeps/unix/sysv/linux/alpha/bits/termios.h [__USE_BSD]: Likewise. * sysdeps/unix/sysv/linux/bits/fcntl-linux.h [__USE_BSD]: Likewise. * sysdeps/unix/sysv/linux/bits/mman-linux.h [__USE_BSD]: Likewise. * sysdeps/unix/sysv/linux/bits/sys_errlist.h [__USE_BSD]: Likewise. * sysdeps/unix/sysv/linux/bits/termios.h [__USE_BSD]: Likewise. * sysdeps/unix/sysv/linux/mips/bits/termios.h [__USE_BSD]: Likewise. * sysdeps/unix/sysv/linux/netinet/if_ether.h [__USE_BSD]: Likewise. * sysdeps/unix/sysv/linux/netinet/if_fddi.h [__USE_BSD]: Likewise. * sysdeps/unix/sysv/linux/netinet/if_tr.h [__USE_BSD]: Likewise. * sysdeps/unix/sysv/linux/powerpc/bits/termios.h [__USE_BSD]: Likewise. * sysdeps/unix/sysv/linux/sparc/bits/termios.h [__USE_BSD]: Likewise. * sysdeps/x86/bits/string.h [__USE_BSD]: Likewise. * sysvipc/sys/ipc.h [__USE_SVID]: Likewise. * termios/termios.h [__USE_BSD]: Likewise. * time/sys/time.h [__USE_BSD]: Likewise. * time/time.h [__USE_BSD]: Likewise. [__USE_SVID]: Likewise. * sysdeps/unix/sysv/linux/hppa/bits/mman.h [__USE_BSD]: Change condition to [__USE_MISC].
2014-01-01Update copyright notices with scripts/update-copyrightsAllan McRae
2013-04-02New <math.h> macro named issignaling to check for a signaling NaN (sNaN).Thomas Schwinge
It is based on draft TS 18661 and currently enabled as a GNU extension.
2013-01-02Update copyright notices with scripts/update-copyrights.Joseph Myers
2012-11-02Make math.h FP_* macros usable in #if (bug 3439).Joseph Myers
2012-05-31Use more decimal places for long double constants in math.h.Joseph Myers
2012-02-09Replace FSF snail mail address with URLs.Paul Eggert
2012-01-26Remove __STDC__ conditionals from installed headers.Joseph Myers
2011-11-04Always provide declarations of long double math functions when !_LIBCAndreas Schwab
2011-10-12Optimize libmUlrich Drepper
libm is now somewhat integrated with gcc's -ffinite-math-only option and lots of the wrapper functions have been optimized.
2010-11-01Fix typo in comment.Erich Ritz
2009-08-24Define math_errhandling is possible.Ulrich Drepper
2006-02-032006-02-03 Jakub Jelinek <jakub@redhat.com>Roland McGrath
* math/math.h [__LDBL_COMPAT && __USE_ISOC99] (nexttowardl): New prototype. * math/math.h (__nldbl_nexttowardf): Put __THROW before __attribute__ ((__const__)). (__MATHDECL_2): Use __REDIRECT_NTH instead of __REDIRECT followed by __THROW.
2006-01-14* math/math.h [__NO_LONG_DOUBLE_MATH] (__nldbl_nexttowardf): NewRoland McGrath
prototype. (nexttowardf): Redirect to __nldbl_nexttowardf. (nexttoward): Redirect to nextafter. (__MATHDECL_2, __MATHDECL_1): Redirect *l functions to non-*l versions if __LONG_DOUBLE_MATH_OPTIONAL and __NO_LONG_DOUBLE_MATH. * math/complex.h (__MATHDECL_1): Likewise. * math/bits/mathcalls.h (nexttoward): Don't prototype if __LDBL_COMPAT. * misc/sys/cdefs.h: Include <bits/wordsize.h>. (__LDBL_COMPAT, __LDBL_REDIR1, __LDBL_REDIR, __LDBL_REDIR1_NTH, __LDBL_REDIR_NTH, __LDBL_REDIR_DECL): New macros. * libio/bits/stdio-ldbl.h: New file. * libio/Makefile (headers): Add it. * libio/stdio.h [__LDBL_COMPAT]: #include it. * libio/bits/libio-ldbl.h: New file. * libio/Makefile (headers): Add it. * libio/libio.h [__LDBL_COMPAT]: #include it. * libio/libioP.h: Include <math_ldbl_opt.h>. * include/wchar.h (__fwprintf, __vfwprintf): Fix commented out attribute. (__vfwprintf_chk): New prototype. Add libc_hidden_proto. * wcsmbs/bits/wchar-ldbl.h: New file. * wcsmbs/Makefile (headers): Add it. * wcsmbs/wchar.h [__LDBL_COMPAT]: #include it. * wcsmbs/bits/wchar2.h (__vswprintf_alias): Removed. (vswprintf): Define as a macro rather than inline function. * stdio-common/bits/printf-ldbl.h: New file. * stdio-common/Makefile (headers): Add it. * stdio-common/printf.h [__LDBL_COMPAT]: #include it. * libio/fwprintf.c: Include libioP.h. (fwprintf): Use ldbl_weak_alias instead of weak_alias. * libio/fwscanf.c: Include libioP.h. (fwscanf): Rename to __fwscanf and add ldbl_strong_alias. * libio/iovdprintf.c (vdprintf): Use ldbl_weak_alias instead of weak_alias. * libio/iovsprintf.c (_IO_vsprintf): Rename to __IO_vsprintf, add ldbl_strong_alias and use INTDEF2 instead of INTDEF. (vsprintf): Use ldbl_weak_alias instead of weak_alias. * libio/iovsscanf.c (__vsscanf, vsscanf): Use ldbl_weak_alias instead of weak_alias. * libio/iovswscanf.c (vswscanf): Rename to __vswscanf, add ldbl_strong_alias and use ldbl_hidden_def instead of libc_hidden_def. * libio/obprintf.c (obstack_printf, obstack_vprintf): Use ldbl_weak_alias instead of weak_alias. * libio/swprintf.c: Include libioP.h. (swprintf): Rename to __swprintf and add ldbl_strong_alias. * libio/swscanf.c: Include libioP.h. (swscanf): Rename to __swscanf and add ldbl_strong_alias. * libio/vasprintf.c (vasprintf): Use ldbl_weak_alias instead of weak_alias. * libio/vscanf.c (vscanf): Use ldbl_weak_alias instead of weak_alias. * libio/vsnprintf.c (__vsnprintf, vsnprintf): Use ldbl_weak_alias instead of weak_alias. * libio/vswprintf.c (__vswprintf): Remove alias. (vswprintf): Use ldbl_weak_alias instead of weak_alias. * libio/vwprintf.c: Include libioP.h. (vwprintf): Rename to __vwprintf and add ldbl_strong_alias. * libio/vwscanf.c (vwscanf): Rename to __vwscanf and add ldbl_strong_alias. * libio/wprintf.c: Include libioP.h. (wprintf): Rename to __wprintf and add ldbl_strong_alias. * libio/wscanf.c: Include libioP.h. (wscanf): Rename to __wscanf and add ldbl_strong_alias. * stdio-common/asprintf.c (__asprintf): Rename to ___asprintf, add ldbl_strong_alias and use INTDEF2 instead of INTDEF. (asprintf): Use ldbl_weak_alias instead of weak_alias. * stdio-common/dprintf.c (dprintf): Rename to __dprintf, add ldbl_strong_alias and use ldbl_hidden_def instead of libc_hidden_def. * stdio-common/fprintf.c: Include libioP.h. (fprintf): Rename to __fprintf, add ldbl_strong_alias and use ldbl_hidden_def instead of libc_hidden_def. (_IO_fprintf): Use ldbl_weak_alias instead of weak_alias. * stdio-common/fscanf.c: Include libioP.h. (fscanf): Rename to __fscanf and add ldbl_strong_alias. * stdio-common/printf.c: Include libioP.h. (printf): Rename to __printf and add ldbl_strong_alias. (_IO_printf): Use ldbl_strong_alias instead of strong_alias. * stdio-common/printf_fp.c (__printf_fp): Rename to __printf_fp, add ldbl_strong_alias and use ldbl_hidden_def instead of libc_hidden_def. * stdio-common/printf_size.c (printf_size): Rename to __printf_size and add ldbl_strong_alias. * stdio-common/scanf.c (scanf): Rename to __scanf and add ldbl_strong_alias. * stdio-common/snprintf.c (snprintf): Use ldbl_weak_alias instead of weak_alias. * stdio-common/sprintf.c (sprintf): Rename to __sprintf, add ldbl_strong_alias and use ldbl_hidden_def instead of libc_hidden_def. (_IO_sprintf): Use ldbl_strong_alias instead of strong_alias. * stdio-common/sscanf.c: Include libioP.h instead of iolibio.h. (sscanf): Rename to __sscanf and add ldbl_strong_alias. * stdio-common/vfprintf.c (vfprintf): Define to _IO_vfprintf_internal. Use ldbl_strong_alias instead. Use ldbl_hidden_def instead of libc_hidden_def. (_IO_vfprintf_internal): Clear is_long_double if __ldbl_is_dbl, handle the argument as double if it is non-zero. (vfwprintf): Use ldbl_weak_alias instead of weak_alias. (_IO_vfprintf): Add ldbl_strong_alias. * stdio-common/vfscanf.c (_IO_vfscanf): Rename to _IO_vfscanf_internal, don't use strtold if __ldbl_is_dbl, add ldbl_strong_alias. (vfwscanf): Use ldbl_weak_alias instead of weak_alias. (__vfscanf): Rename to ___vfscanf, add ldbl_strong_alias and use ldbl_hidden_def instead of libc_hidden_def. (vfscanf): Use ldbl_weak_alias instead of weak_alias. * stdio-common/vprintf.c: Include libioP.h. (vprintf): Rename to __vprintf and add ldbl_strong_alias. * debug/fprintf_chk.c (__fprintf_chk): Rename to ___fprintf_chk and add ldbl_strong_alias. * debug/printf_chk.c (__printf_chk): Rename to ___printf_chk and add ldbl_strong_alias. * debug/snprintf_chk.c: Include libioP.h. (__snprintf_chk): Rename to ___snprintf_chk and add ldbl_strong_alias. * debug/sprintf_chk.c: Include libioP.h. (__sprintf_chk): Rename to ___sprintf_chk and add ldbl_strong_alias. * debug/vfprintf_chk.c (__vfprintf_chk): Rename to ___vfprintf_chk, add ldbl_strong_alias and use ldbl_hidden_def instead of libc_hidden_def. * debug/vfwprintf_chk.c (__vfwprintf_chk): Add libc_hidden_def. * debug/vprintf_chk.c (__vprintf_chk): Rename to ___vprintf_chk and add ldbl_strong_alias. * debug/vsnprintf_chk.c (__vsnprintf_chk): Rename to ___vsnprintf_chk, add ldbl_strong_alias and use ldbl_hidden_def instead of libc_hidden_def. * debug/vsprintf_chk.c (__vsprintf_chk): Rename to ___vsprintf_chk, add ldbl_strong_alias and use ldbl_hidden_def instead of libc_hidden_def. * stdlib/stdlib.h (strtold): Don't define inline if [!__LDBL_COMPAT]. * wcsmbs/wchar.h (wcstold): Likewise. * stdlib/strtod_l.c: Include math_ldbl_opt.h. (____STRTOF_INTERNAL): Define. (INTERNAL (__STRTOF)): Rename to ____STRTOF_INTERNAL. (__STRTOF): Call ____STRTOF_INTERNAL instead. [LONG_DOUBLE_COMPAT] (strtold_l, wcstold_l, __strtold_l, __wcstold_l): Add compatibility symbols. * stdlib/strtod.c: Include math_ldbl_opt.h. [LONG_DOUBLE_COMPAT] (strtold, wcstold, __strtold_internal, __wcstold_internal): Add compatibility symbols. * stdlib/strtold.c: Include bits/wordsize.h, wchar.h. (NEW, NEW1): Define. (__new_strtold, __new_wcstold): New prototypes. (____new_strtold_internal, ____new_wcstold_internal): Likewise. Add libc_hidden_proto. (STRTOF): Define to NEW (*told). [__LONG_DOUBLE_MATH_OPTIONAL] (wcstold, strtold): Add long_double_symbol. [__LONG_DOUBLE_MATH_OPTIONAL] (__wcstold_internal, __strtold_internal): Likewise. Add libc_hidden_ver. * stdlib/bits/stdlib-ldbl.h: New file. * stdlib/Makefile (headers): Add it. * stdlib/stdlib.h [__LDBL_COMPAT]: #include it. * include/stdlib.h (ecvt_r, fcvt_r, qecvt_r, qfcvt_r): Remove libc_hidden_proto. (__ecvt, __fcvt, __gcvt, __ecvt_r, __fcvt_r, __qecvt, __qfcvt, __qgcvt, __qecvt_r, __qfcvt_r): New prototypes. * misc/efgcvt_r.c: Include shlib-compat.h. (LONG_DOUBLE_CVT): Define. (__APPEND, __APPEND2): Define. (*fcvt_r): Use __APPEND instead of APPEND. Remove libc_hidden_def. (*ecvt_r): Likewise. (cvt_symbol): Define. Use it on fcvt_r and ecvt_r. * misc/efgcvt.c: Include shlib-compat.h. (LONG_DOUBLE_CVT): Define. (__APPEND, __APPEND2): Define. (fcvt): Use __APPEND instead of APPEND. Remove libc_hidden_def. (ecvt, gcvt): Likewise. (cvt_symbol): Define. Use it on fcvt, ecvt and gcvt. * stdlib/bits/monetary-ldbl.h: New file. * stdlib/Makefile (headers): Add it. * stdlib/monetary.h [__LDBL_COMPAT]: #include it. * stdlib/strfmon.c: Include math_ldbl_opt.h. (strfmon): Rename to __strfmon and add ldbl_strong_alias. * stdlib/strfmon_l.c: Remove all traces of [!USE_IN_LIBIO]. (__vstrfmon_l): Don't set is_long_double if __ldbl_is_dbl. (__strfmon_l): Rename to ___strfmon_l and add ldbl_strong_alias. (strfmon_l): Use ldbl_weak_alias instead of weak_alias. * misc/bits/syslog-ldbl.h: New file. * misc/Makefile (headers): Add it. * misc/sys/syslog.h [__LDBL_COMPAT]: #include it. * misc/syslog.c: Include math_ldbl_opt.h. (syslog): Rename to __syslog and add ldbl_strong_alias, use ldbl_hidden_def instead of libc_hidden_def. (vsyslog): Rename to __vsyslog and add ldbl_strong_alias, use ldbl_hidden_def instead of libc_hidden_def. * sysdeps/generic/math_ldbl_opt.h: New file. * math/w_j1l.c (j1l, y1l): Rename to __ prefixed variants. Add weak_alias. * math/w_j0l.c (j0l, y0l): Likewise. * math/w_jnl.c (jnl, ynl): Likewise. * sysdeps/ieee754/ldbl-96/s_nexttoward.c (__nexttowardl): Remove strong_alias. (nexttowardl): Remove weak_alias. * sysdeps/ieee754/ldbl-96/s_erfl.c (__erfl, __erfcl): Remove strong_alias. (erfl, erfcl): Remove weak_alias. * sysdeps/ieee754/ldbl-64-128/s_asinhl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_atanl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_cbrtl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_ceill.c: New file. * sysdeps/ieee754/ldbl-64-128/s_copysignl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_cosl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_erfl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_expm1l.c: New file. * sysdeps/ieee754/ldbl-64-128/s_fabsl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_finitel.c: New file. * sysdeps/ieee754/ldbl-64-128/s_floorl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_fpclassifyl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_frexpl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_ilogbl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_isinfl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_isnanl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_llrintl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_llroundl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_log1pl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_logbl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_lrintl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_lroundl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_modfl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_nearbyintl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_nextafterl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_nexttoward.c: New file. * sysdeps/ieee754/ldbl-64-128/s_nexttowardf.c: New file. * sysdeps/ieee754/ldbl-64-128/s_nexttowardfd.c: New file. * sysdeps/ieee754/ldbl-64-128/s_remquol.c: New file. * sysdeps/ieee754/ldbl-64-128/s_rintl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_roundl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_scalblnl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_scalbnl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_signbitl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_sincosl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_sinl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_tanhl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_tanl.c: New file. * sysdeps/ieee754/ldbl-64-128/s_truncl.c: New file. * sysdeps/ieee754/ldbl-64-128/strtold_l.c: New file. * sysdeps/ieee754/ldbl-64-128/w_expl.c: New file. * sysdeps/ieee754/ldbl-opt/configure.in: New file. * sysdeps/ieee754/ldbl-opt/configure: New file. * sysdeps/ieee754/ldbl-opt/Makefile: New file. * sysdeps/ieee754/ldbl-opt/Versions: New file. * sysdeps/ieee754/ldbl-opt/cabs.c: New file. * sysdeps/ieee754/ldbl-opt/cabsl.c: New file. * sysdeps/ieee754/ldbl-opt/carg.c: New file. * sysdeps/ieee754/ldbl-opt/cargl.c: New file. * sysdeps/ieee754/ldbl-opt/cimag.c: New file. * sysdeps/ieee754/ldbl-opt/cimagl.c: New file. * sysdeps/ieee754/ldbl-opt/conj.c: New file. * sysdeps/ieee754/ldbl-opt/conjl.c: New file. * sysdeps/ieee754/ldbl-opt/creal.c: New file. * sysdeps/ieee754/ldbl-opt/creall.c: New file. * sysdeps/ieee754/ldbl-opt/math_ldbl_opt.c: New file. * sysdeps/ieee754/ldbl-opt/math_ldbl_opt.h: New file. * sysdeps/ieee754/ldbl-opt/nldbl-acos.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-acosh.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-asin.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-asinh.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-asprintf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-atan.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-atan2.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-atanh.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-cabs.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-cacos.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-cacosh.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-carg.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-casin.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-casinh.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-catan.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-catanh.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-cbrt.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-ccos.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-ccosh.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-ceil.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-cexp.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-cimag.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-clog.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-clog10.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-compat.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-compat.h: New file. * sysdeps/ieee754/ldbl-opt/nldbl-conj.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-copysign.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-cos.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-cosh.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-cpow.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-cproj.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-creal.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-csin.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-csinh.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-csqrt.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-ctan.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-ctanh.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-dprintf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-drem.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-erf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-erfc.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-exp.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-exp10.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-exp2.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-expm1.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-fabs.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-fdim.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-finite.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-floor.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-fma.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-fmax.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-fmin.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-fmod.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-fprintf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-fprintf_chk.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-frexp.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-fscanf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-fwprintf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-fwprintf_chk.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-fwscanf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-gamma.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-hypot.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-ilogb.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-iovfscanf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-isinf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-isnan.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-j0.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-j1.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-jn.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-ldexp.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-lgamma.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-lgamma_r.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-llrint.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-llround.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-log.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-log10.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-log1p.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-log2.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-logb.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-lrint.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-lround.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-modf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-nan.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-nearbyint.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-nextafter.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-nexttoward.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-nexttowardf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-obstack_printf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-obstack_vprintf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-pow.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-pow10.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-printf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-printf_chk.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-printf_fp.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-printf_size.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-qecvt.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-qecvt_r.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-qfcvt.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-qfcvt_r.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-qgcvt.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-remainder.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-remquo.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-rint.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-round.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-scalb.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-scalbln.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-scalbn.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-scanf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-signbit.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-significand.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-sin.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-sincos.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-sinh.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-snprintf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-snprintf_chk.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-sprintf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-sprintf_chk.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-sqrt.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-sscanf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-strfmon.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-strfmon_l.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-strtold.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-strtold_l.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-strtoldint.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-swprintf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-swprintf_chk.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-swscanf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-syslog.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-syslog_chk.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-tan.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-tanh.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-tgamma.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-trunc.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vasprintf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vdprintf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vfprintf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vfprintf_chk.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vfscanf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vfwprintf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vfwprintf_chk.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vfwscanf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vprintf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vprintf_chk.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vscanf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vsnprintf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vsnprintf_chk.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vsprintf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vsprintf_chk.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vsscanf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vswprintf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vswprintf_chk.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vswscanf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vsyslog.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vsyslog_chk.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vwprintf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vwprintf_chk.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-vwscanf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-wcstold.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-wcstold_l.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-wcstoldint.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-wprintf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-wprintf_chk.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-wscanf.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-y0.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-y1.c: New file. * sysdeps/ieee754/ldbl-opt/nldbl-yn.c: New file. * sysdeps/ieee754/ldbl-opt/s_asinh.c: New file. * sysdeps/ieee754/ldbl-opt/s_atan.c: New file. * sysdeps/ieee754/ldbl-opt/s_cacos.c: New file. * sysdeps/ieee754/ldbl-opt/s_cacosh.c: New file. * sysdeps/ieee754/ldbl-opt/s_cacoshl.c: New file. * sysdeps/ieee754/ldbl-opt/s_cacosl.c: New file. * sysdeps/ieee754/ldbl-opt/s_casin.c: New file. * sysdeps/ieee754/ldbl-opt/s_casinh.c: New file. * sysdeps/ieee754/ldbl-opt/s_casinhl.c: New file. * sysdeps/ieee754/ldbl-opt/s_casinl.c: New file. * sysdeps/ieee754/ldbl-opt/s_catan.c: New file. * sysdeps/ieee754/ldbl-opt/s_catanh.c: New file. * sysdeps/ieee754/ldbl-opt/s_catanhl.c: New file. * sysdeps/ieee754/ldbl-opt/s_catanl.c: New file. * sysdeps/ieee754/ldbl-opt/s_cbrt.c: New file. * sysdeps/ieee754/ldbl-opt/s_ccos.c: New file. * sysdeps/ieee754/ldbl-opt/s_ccosh.c: New file. * sysdeps/ieee754/ldbl-opt/s_ccoshl.c: New file. * sysdeps/ieee754/ldbl-opt/s_ccosl.c: New file. * sysdeps/ieee754/ldbl-opt/s_ceil.c: New file. * sysdeps/ieee754/ldbl-opt/s_cexp.c: New file. * sysdeps/ieee754/ldbl-opt/s_cexpl.c: New file. * sysdeps/ieee754/ldbl-opt/s_clog.c: New file. * sysdeps/ieee754/ldbl-opt/s_clog10.c: New file. * sysdeps/ieee754/ldbl-opt/s_clog10l.c: New file. * sysdeps/ieee754/ldbl-opt/s_clogl.c: New file. * sysdeps/ieee754/ldbl-opt/s_copysign.c: New file. * sysdeps/ieee754/ldbl-opt/s_cpow.c: New file. * sysdeps/ieee754/ldbl-opt/s_cpowl.c: New file. * sysdeps/ieee754/ldbl-opt/s_cproj.c: New file. * sysdeps/ieee754/ldbl-opt/s_cprojl.c: New file. * sysdeps/ieee754/ldbl-opt/s_csin.c: New file. * sysdeps/ieee754/ldbl-opt/s_csinh.c: New file. * sysdeps/ieee754/ldbl-opt/s_csinhl.c: New file. * sysdeps/ieee754/ldbl-opt/s_csinl.c: New file. * sysdeps/ieee754/ldbl-opt/s_csqrt.c: New file. * sysdeps/ieee754/ldbl-opt/s_csqrtl.c: New file. * sysdeps/ieee754/ldbl-opt/s_ctan.c: New file. * sysdeps/ieee754/ldbl-opt/s_ctanh.c: New file. * sysdeps/ieee754/ldbl-opt/s_ctanhl.c: New file. * sysdeps/ieee754/ldbl-opt/s_ctanl.c: New file. * sysdeps/ieee754/ldbl-opt/s_erf.c: New file. * sysdeps/ieee754/ldbl-opt/s_expm1.c: New file. * sysdeps/ieee754/ldbl-opt/s_fabs.c: New file. * sysdeps/ieee754/ldbl-opt/s_fdim.c: New file. * sysdeps/ieee754/ldbl-opt/s_fdiml.c: New file. * sysdeps/ieee754/ldbl-opt/s_finite.c: New file. * sysdeps/ieee754/ldbl-opt/s_floor.c: New file. * sysdeps/ieee754/ldbl-opt/s_fma.c: New file. * sysdeps/ieee754/ldbl-opt/s_fmal.c: New file. * sysdeps/ieee754/ldbl-opt/s_fmax.c: New file. * sysdeps/ieee754/ldbl-opt/s_fmaxl.c: New file. * sysdeps/ieee754/ldbl-opt/s_fmin.c: New file. * sysdeps/ieee754/ldbl-opt/s_fminl.c: New file. * sysdeps/ieee754/ldbl-opt/s_frexp.c: New file. * sysdeps/ieee754/ldbl-opt/s_ilogb.c: New file. * sysdeps/ieee754/ldbl-opt/s_isinf.c: New file. * sysdeps/ieee754/ldbl-opt/s_isnan.c: New file. * sysdeps/ieee754/ldbl-opt/s_ldexp.c: New file. * sysdeps/ieee754/ldbl-opt/s_ldexpl.c: New file. * sysdeps/ieee754/ldbl-opt/s_llrint.c: New file. * sysdeps/ieee754/ldbl-opt/s_llround.c: New file. * sysdeps/ieee754/ldbl-opt/s_log1p.c: New file. * sysdeps/ieee754/ldbl-opt/s_logb.c: New file. * sysdeps/ieee754/ldbl-opt/s_lrint.c: New file. * sysdeps/ieee754/ldbl-opt/s_lround.c: New file. * sysdeps/ieee754/ldbl-opt/s_modf.c: New file. * sysdeps/ieee754/ldbl-opt/s_nan.c: New file. * sysdeps/ieee754/ldbl-opt/s_nanl.c: New file. * sysdeps/ieee754/ldbl-opt/s_nearbyint.c: New file. * sysdeps/ieee754/ldbl-opt/s_nextafter.c: New file. * sysdeps/ieee754/ldbl-opt/s_remquo.c: New file. * sysdeps/ieee754/ldbl-opt/s_rint.c: New file. * sysdeps/ieee754/ldbl-opt/s_round.c: New file. * sysdeps/ieee754/ldbl-opt/s_scalbln.c: New file. * sysdeps/ieee754/ldbl-opt/s_scalbn.c: New file. * sysdeps/ieee754/ldbl-opt/s_significand.c: New file. * sysdeps/ieee754/ldbl-opt/s_significandl.c: New file. * sysdeps/ieee754/ldbl-opt/s_sin.c: New file. * sysdeps/ieee754/ldbl-opt/s_sincos.c: New file. * sysdeps/ieee754/ldbl-opt/s_tan.c: New file. * sysdeps/ieee754/ldbl-opt/s_tanh.c: New file. * sysdeps/ieee754/ldbl-opt/s_trunc.c: New file. * sysdeps/ieee754/ldbl-opt/w_acos.c: New file. * sysdeps/ieee754/ldbl-opt/w_acosh.c: New file. * sysdeps/ieee754/ldbl-opt/w_acoshl.c: New file. * sysdeps/ieee754/ldbl-opt/w_acosl.c: New file. * sysdeps/ieee754/ldbl-opt/w_asin.c: New file. * sysdeps/ieee754/ldbl-opt/w_asinl.c: New file. * sysdeps/ieee754/ldbl-opt/w_atan2.c: New file. * sysdeps/ieee754/ldbl-opt/w_atan2l.c: New file. * sysdeps/ieee754/ldbl-opt/w_atanh.c: New file. * sysdeps/ieee754/ldbl-opt/w_atanhl.c: New file. * sysdeps/ieee754/ldbl-opt/w_cosh.c: New file. * sysdeps/ieee754/ldbl-opt/w_coshl.c: New file. * sysdeps/ieee754/ldbl-opt/w_drem.c: New file. * sysdeps/ieee754/ldbl-opt/w_dreml.c: New file. * sysdeps/ieee754/ldbl-opt/w_exp.c: New file. * sysdeps/ieee754/ldbl-opt/w_exp10.c: New file. * sysdeps/ieee754/ldbl-opt/w_exp10l.c: New file. * sysdeps/ieee754/ldbl-opt/w_fmod.c: New file. * sysdeps/ieee754/ldbl-opt/w_fmodl.c: New file. * sysdeps/ieee754/ldbl-opt/w_hypot.c: New file. * sysdeps/ieee754/ldbl-opt/w_hypotl.c: New file. * sysdeps/ieee754/ldbl-opt/w_j0.c: New file. * sysdeps/ieee754/ldbl-opt/w_j0l.c: New file. * sysdeps/ieee754/ldbl-opt/w_j1.c: New file. * sysdeps/ieee754/ldbl-opt/w_j1l.c: New file. * sysdeps/ieee754/ldbl-opt/w_jn.c: New file. * sysdeps/ieee754/ldbl-opt/w_jnl.c: New file. * sysdeps/ieee754/ldbl-opt/w_lgamma.c: New file. * sysdeps/ieee754/ldbl-opt/w_lgamma_r.c: New file. * sysdeps/ieee754/ldbl-opt/w_lgammal.c: New file. * sysdeps/ieee754/ldbl-opt/w_lgammal_r.c: New file. * sysdeps/ieee754/ldbl-opt/w_log.c: New file. * sysdeps/ieee754/ldbl-opt/w_log10.c: New file. * sysdeps/ieee754/ldbl-opt/w_log10l.c: New file. * sysdeps/ieee754/ldbl-opt/w_log2.c: New file. * sysdeps/ieee754/ldbl-opt/w_log2l.c: New file. * sysdeps/ieee754/ldbl-opt/w_logl.c: New file. * sysdeps/ieee754/ldbl-opt/w_pow.c: New file. * sysdeps/ieee754/ldbl-opt/w_powl.c: New file. * sysdeps/ieee754/ldbl-opt/w_remainder.c: New file. * sysdeps/ieee754/ldbl-opt/w_remainderl.c: New file. * sysdeps/ieee754/ldbl-opt/w_scalb.c: New file. * sysdeps/ieee754/ldbl-opt/w_scalbl.c: New file. * sysdeps/ieee754/ldbl-opt/w_sinh.c: New file. * sysdeps/ieee754/ldbl-opt/w_sinhl.c: New file. * sysdeps/ieee754/ldbl-opt/w_sqrt.c: New file. * sysdeps/ieee754/ldbl-opt/w_sqrtl.c: New file. * sysdeps/ieee754/ldbl-opt/w_tgamma.c: New file. * sysdeps/ieee754/ldbl-opt/w_tgammal.c: New file. * sysdeps/unix/sysv/linux/sparc/bits/wordsize.h: New file. * sysdeps/unix/sysv/linux/sparc/sparc32/Implies: New file. * sysdeps/sparc/sparc32/Implies: Move ldbl-128 first and flt-32 after dbl-64. * sysdeps/unix/sysv/linux/sparc/sparc32/Versions (NLDBL_VERSION): %define this to to GLIBC_2.4. * sysdeps/sparc/sparc32/fpu/e_sqrtl.c: New file. * sysdeps/sparc/sparc32/fpu/s_fabs.c: New file. * sysdeps/sparc/sparc32/fpu/s_fabsf.S: New file. * sysdeps/sparc/sparc32/fpu/s_fabsl.c: New file. * sysdeps/sparc/sparc32/soft-fp/q_qtoui.c: Removed. * sysdeps/sparc/sparc32/soft-fp/q_qtoux.c: Removed. * sysdeps/sparc/sparc32/soft-fp/q_qtox.c: Removed. * sysdeps/sparc/sparc32/soft-fp/q_uitoq.c: Removed. * sysdeps/sparc/sparc32/soft-fp/q_uxtoq.c: Removed. * sysdeps/sparc/sparc32/soft-fp/q_xtoq.c: Removed. * sysdeps/sparc/sparc32/soft-fp/q_lltoq.c: New file. * sysdeps/sparc/sparc32/soft-fp/q_qtoll.c: New file. * sysdeps/sparc/sparc32/soft-fp/q_qtou.c: New file. * sysdeps/sparc/sparc32/soft-fp/q_qtoull.c: New file. * sysdeps/sparc/sparc32/soft-fp/q_ulltoq.c: New file. * sysdeps/sparc/sparc32/soft-fp/q_utoq.c: New file. * sysdeps/sparc/sparc32/soft-fp/Versions: New file. * sysdeps/sparc/fpu/bits/mathinline.h (__unordered_cmp, __unordered_v9cmp): Define differently depending on -m32 -mlong-double-{64,128}. (__signbitl, sqrtl, __ieee754_sqrtl): New inlines. * sysdeps/sparc/fpu/bits/mathdef.h (__NO_LONG_DOUBLE_MATH): Remove. * sysdeps/sparc/sparc32/soft-fp/Makefile (sparc32-quad-routines): Set. (sysdep-routines): Add sparc32-quad-routines. * sysdeps/sparc/sparc32/soft-fp/sfp-machine.h: Include stdlib.h. (FP_HANDLE_EXCEPTIONS): Call ___Q_simulate_exceptions as a normal function. * sysdeps/sparc/sparc32/soft-fp/q_sqrt.c (__ieee754_sqrtl): New alias to _Q_sqrt. * sysdeps/sparc/sparc32/soft-fp/q_div.c (_Q_div): Fix a typo. * sysdeps/sparc/sparc64/soft-fp/sfp-machine.h: Include stdlib.h. * sysdeps/sparc/sparc32/fpu/libm-test-ulps: Update. * libio/libio.h (_IO_vfscanf, _IO_vfprintf): Remove __THROW. (_IO_vfwscanf, _IO_vfwprintf): Likewise. * libio/libioP.h (_IO_vdprintf): Likewise.
2004-12-22(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.Ulrich Drepper
2007-07-122.5-18.1Jakub Jelinek
2004-12-16Use #if defined to not receive warnings about undefined symbols.Andreas Jaeger
2004-03-15 * math/Makefile (headers): Add bits/huge_valf.h, bits/huge_vall.h, ↵Richard Henderson
and bits/inf.h. * math/math.h: Include them. * sysdeps/alpha/fpu/bits/mathdef.h, sysdeps/arm/fpu/bits/mathdef.h, sysdeps/generic/bits/mathdef.h, sysdeps/i386/fpu/bits/mathdef.h, sysdeps/ia64/fpu/bits/mathdef.h, sysdeps/m68k/fpu/bits/mathdef.h, sysdeps/mips/fpu/bits/mathdef.h, sysdeps/powerpc/fpu/bits/mathdef.h, sysdeps/sh/sh4/fpu/bits/mathdef.h, sysdeps/sparc/fpu/bits/mathdef.h, sysdeps/x86_64/fpu/bits/mathdef.h: Remove INFINITY. * sysdeps/arm/bits/huge_val.h (HUGE_VAL): Use __builtin_huge_val. (HUGE_VALF, HUGE_VALL): Remove. * sysdeps/ieee754/bits/huge_val.h: Likewise. * sysdeps/sh/bits/huge_val.h: Likewise. * sysdeps/generic/bits/huge_val.h (HUGE_VAL): Use __builtin_huge_val. * sysdeps/generic/bits/huge_valf.h: New file. * sysdeps/generic/bits/huge_vall.h: New file. * sysdeps/generic/bits/inf.h: New file. * sysdeps/ieee754/bits/huge_valf.h: New file. * sysdeps/ieee754/bits/inf.h: New file. * sysdeps/i386/bits/huge_val.h: Remove file. * sysdeps/i386/bits/huge_vall.h: New file. * sysdeps/ia64/bits/huge_val.h: Remove file. * sysdeps/ia64/bits/huge_vall.h: New file. * sysdeps/ieee754/ldbl-128/bits/huge_vall.h: New file. * sysdeps/m68k/bits/huge_val.h: Remove file. * sysdeps/m68k/bits/huge_vall.h: New file. * sysdeps/s390/bits/huge_val.h: Remove file. * sysdeps/sh/sh4/fpu/bits/huge_val.h: Remove file. * sysdeps/sparc/bits/huge_vall.h: New file. * sysdeps/sparc/sparc32/fpu/bits/huge_val.h: Remove file. * sysdeps/sparc/sparc64/fpu/bits/huge_val.h: Remove file. * sysdeps/ieee754/bits/nan.h (NAN): Use __builtin_nanf. * sysdeps/mips/bits/nan.h (NAN): Likewise. 2004-03-15 Richard Henderson <rth@redhat.com> * math/Makefile (headers): Add bits/huge_valf.h, bits/huge_vall.h, and bits/inf.h. * math/math.h: Include them. * sysdeps/alpha/fpu/bits/mathdef.h, sysdeps/arm/fpu/bits/mathdef.h, sysdeps/generic/bits/mathdef.h, sysdeps/i386/fpu/bits/mathdef.h, sysdeps/ia64/fpu/bits/mathdef.h, sysdeps/m68k/fpu/bits/mathdef.h, sysdeps/mips/fpu/bits/mathdef.h, sysdeps/powerpc/fpu/bits/mathdef.h, sysdeps/sh/sh4/fpu/bits/mathdef.h, sysdeps/sparc/fpu/bits/mathdef.h, sysdeps/x86_64/fpu/bits/mathdef.h: Remove INFINITY. * sysdeps/arm/bits/huge_val.h (HUGE_VAL): Use __builtin_huge_val. (HUGE_VALF, HUGE_VALL): Remove. * sysdeps/ieee754/bits/huge_val.h: Likewise. * sysdeps/sh/bits/huge_val.h: Likewise. * sysdeps/generic/bits/huge_val.h (HUGE_VAL): Use __builtin_huge_val. * sysdeps/generic/bits/huge_valf.h: New file. * sysdeps/generic/bits/huge_vall.h: New file. * sysdeps/generic/bits/inf.h: New file. * sysdeps/ieee754/bits/huge_valf.h: New file. * sysdeps/ieee754/bits/inf.h: New file. * sysdeps/i386/bits/huge_val.h: Remove file. * sysdeps/i386/bits/huge_vall.h: New file. * sysdeps/ia64/bits/huge_val.h: Remove file. * sysdeps/ia64/bits/huge_vall.h: New file. * sysdeps/ieee754/ldbl-128/bits/huge_vall.h: New file. * sysdeps/m68k/bits/huge_val.h: Remove file. * sysdeps/m68k/bits/huge_vall.h: New file. * sysdeps/s390/bits/huge_val.h: Remove file. * sysdeps/sh/sh4/fpu/bits/huge_val.h: Remove file. * sysdeps/sparc/bits/huge_vall.h: New file. * sysdeps/sparc/sparc32/fpu/bits/huge_val.h: Remove file. * sysdeps/sparc/sparc64/fpu/bits/huge_val.h: Remove file. * sysdeps/ieee754/bits/nan.h (NAN): Use __builtin_nanf. * sysdeps/mips/bits/nan.h (NAN): Likewise.
2004-03-10Update.Ulrich Drepper
2004-03-09 Richard Henderson <rth@redhat.com> * math/math.h (isgreater, isgreaterequal, isless, islessequal, islessgreater, isunordered): Use builtins if available. * sysdeps/i386/fpu/bits/mathinline.h: Don't define via builtins. * sysdeps/m68k/fpu/bits/mathinline.h: Likewise. * sysdeps/powerpc/fpu/bits/mathinline.h: Likewise. * sysdeps/sparc/fpu/bits/mathinline.h: Likewise. * sysdeps/x86_64/fpu/bits/mathinline.h: Likewise. * sysdeps/alpha/fpu/bits/mathinline.h (isgreater, isgreaterequal, isless, islessequal, islessgreater): Remove; use default. (isunordered): Convert inputs to double.
2002-10-25* math/math.h (M_LOG2El): Correct the value.Roland McGrath
From Stephen L Moshier <steve@moshier.net>.
2002-08-28Prepare headers for use in ISO C++ compliant implementations.Ulrich Drepper
2001-07-06Update to LGPL v2.1.Andreas Jaeger
2001-07-06 Paul Eggert <eggert@twinsun.com> * manual/argp.texi: Remove ignored LGPL copyright notice; it's not appropriate for documentation anyway. * manual/libc-texinfo.sh: "Library General Public License" -> "Lesser General Public License". 2001-07-06 Andreas Jaeger <aj@suse.de> * All files under GPL/LGPL version 2: Place under LGPL version 2.1.
2001-01-27Update.Ulrich Drepper
* conform/conformtest.pl: Implement optional-macro. * conform/data/math.h-data: Update for XPG6. * math/math.h (HUGE): Define as FLT_MAX value but don't use FLT_MAX. Don't include <float.h>. (MAXFLOAT): Likewise. * math/math.h: Define MATH_ERRNO and MATH_ERREXCEPT.
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