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4745f4c1ca
I noticed that the totalorder compat tests mixed TEST_COMPAT conditions using COMPAT_VER (computed as the first symbol version for the symbol being tested) and those with a hardcoded GLIBC_2_25. COMPAT_VER is logically correct here, so this patch changes the tests to use it. GLIBC_2_25 is harmless at present (even for _FloatN / _FloatNx functions added in later glibc versions). However, if in future we support _Float16 functions in glibc for any existing configuration, the test using GLIBC_2_25 would get things wrong (wrongly think that there are compat versions of totalorderf16 and totalordermagf16 to test). (The actual definitions of the compat / versioned symbols for the totalorder functions make no attempt to deal with the possibility of libm function support for a new floating-point format, already supported for other architectures in glibc, being added in some glibc configuration in future, for which the only vaguely plausible case would be if some architecture gets _Float128 support it previously lacked; this is much like functions added after glibc 2.4 not generally attempting to deal with compat support for long double changing away from having the same format as double.) Tested for x86_64, and with build-many-glibcs.py. * math/libm-test-compat_totalorder.inc (do_test) [TEST_COMPAT (libm, GLIBC_2_25, GLIBC_2_31)]: Change condition to [TEST_COMPAT (libm, COMPAT_VER, GLIBC_2_31)]. * math/libm-test-compat_totalordermag.inc (do_test) [TEST_COMPAT (libm, GLIBC_2_25, GLIBC_2_31)]: Likewise. |
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This directory contains the sources of the GNU C Library. See the file "version.h" for what release version you have. The GNU C Library is the standard system C library for all GNU systems, and is an important part of what makes up a GNU system. It provides the system API for all programs written in C and C-compatible languages such as C++ and Objective C; the runtime facilities of other programming languages use the C library to access the underlying operating system. In GNU/Linux systems, the C library works with the Linux kernel to implement the operating system behavior seen by user applications. In GNU/Hurd systems, it works with a microkernel and Hurd servers. The GNU C Library implements much of the POSIX.1 functionality in the GNU/Hurd system, using configurations i[4567]86-*-gnu. When working with Linux kernels, this version of the GNU C Library requires Linux kernel version 3.2 or later. Also note that the shared version of the libgcc_s library must be installed for the pthread library to work correctly. The GNU C Library supports these configurations for using Linux kernels: aarch64*-*-linux-gnu alpha*-*-linux-gnu arm-*-linux-gnueabi csky-*-linux-gnuabiv2 hppa-*-linux-gnu i[4567]86-*-linux-gnu x86_64-*-linux-gnu Can build either x86_64 or x32 ia64-*-linux-gnu m68k-*-linux-gnu microblaze*-*-linux-gnu mips-*-linux-gnu mips64-*-linux-gnu powerpc-*-linux-gnu Hardware or software floating point, BE only. powerpc64*-*-linux-gnu Big-endian and little-endian. s390-*-linux-gnu s390x-*-linux-gnu riscv64-*-linux-gnu sh[34]-*-linux-gnu sparc*-*-linux-gnu sparc64*-*-linux-gnu If you are interested in doing a port, please contact the glibc maintainers; see http://www.gnu.org/software/libc/ for more information. See the file INSTALL to find out how to configure, build, and install the GNU C Library. You might also consider reading the WWW pages for the C library at http://www.gnu.org/software/libc/. The GNU C Library is (almost) completely documented by the Texinfo manual found in the `manual/' subdirectory. The manual is still being updated and contains some known errors and omissions; we regret that we do not have the resources to work on the manual as much as we would like. For corrections to the manual, please file a bug in the `manual' component, following the bug-reporting instructions below. Please be sure to check the manual in the current development sources to see if your problem has already been corrected. Please see http://www.gnu.org/software/libc/bugs.html for bug reporting information. We are now using the Bugzilla system to track all bug reports. This web page gives detailed information on how to report bugs properly. The GNU C Library is free software. See the file COPYING.LIB for copying conditions, and LICENSES for notices about a few contributions that require these additional notices to be distributed. License copyright years may be listed using range notation, e.g., 1996-2015, indicating that every year in the range, inclusive, is a copyrightable year that would otherwise be listed individually.