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* elf: Add _dl_audit_pltexitAdhemerval Zanella2021-12-281-1/+1
| | | | | | | | | It consolidates the code required to call la_pltexit audit callback. Checked on x86_64-linux-gnu, i686-linux-gnu, and aarch64-linux-gnu. Reviewed-by: Florian Weimer <fweimer@redhat.com>
* nptl: Increase default TCB alignment to 32Florian Weimer2021-12-031-4/+0
| | | | | | | | | | rseq support will use a 32-byte aligned field in struct pthread, so the whole struct needs to have at least that alignment. nptl/tst-tls3mod.c uses TCB_ALIGNMENT, therefore include <descr.h> to obtain the fallback definition. Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* String: Add hidden defs for __memcmpeq() to enable internal usageNoah Goldstein2021-10-261-0/+1
| | | | | | | | No bug. This commit adds hidden defs for all declarations of __memcmpeq. This enables usage of __memcmpeq without the PLT for usage internal to GLIBC.
* String: Add support for __memcmpeq() ABI on all targetsNoah Goldstein2021-10-261-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | No bug. This commit adds support for __memcmpeq() as a new ABI for all targets. In this commit __memcmpeq() is implemented only as an alias to the corresponding targets memcmp() implementation. __memcmpeq() is added as a new symbol starting with GLIBC_2.35 and defined in string.h with comments explaining its behavior. Basic tests that it is callable and works where added in string/tester.c As discussed in the proposal "Add new ABI '__memcmpeq()' to libc" __memcmpeq() is essentially a reserved namespace for bcmp(). The means is shares the same specifications as memcmp() except the return value for non-equal byte sequences is any non-zero value. This is less strict than memcmp()'s return value specification and can be better optimized when a boolean return is all that is needed. __memcmpeq() is meant to only be called by compilers if they can prove that the return value of a memcmp() call is only used for its boolean value. All tests in string/tester.c passed. As well build succeeds on x86_64-linux-gnu target.
* elf: Fix dynamic-link.h usage on rtld.cAdhemerval Zanella2021-10-141-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The 4af6982e4c fix does not fully handle RTLD_BOOTSTRAP usage on rtld.c due two issues: 1. RTLD_BOOTSTRAP is also used on dl-machine.h on various architectures and it changes the semantics of various machine relocation functions. 2. The elf_get_dynamic_info() change was done sideways, previously to 490e6c62aa get-dynamic-info.h was included by the first dynamic-link.h include *without* RTLD_BOOTSTRAP being defined. It means that the code within elf_get_dynamic_info() that uses RTLD_BOOTSTRAP is in fact unused. To fix 1. this patch now includes dynamic-link.h only once with RTLD_BOOTSTRAP defined. The ELF_DYNAMIC_RELOCATE call will now have the relocation fnctions with the expected semantics for the loader. And to fix 2. part of 4af6982e4c is reverted (the check argument elf_get_dynamic_info() is not required) and the RTLD_BOOTSTRAP pieces are removed. To reorganize the includes the static TLS definition is moved to its own header to avoid a circular dependency (it is defined on dynamic-link.h and dl-machine.h requires it at same time other dynamic-link.h definition requires dl-machine.h defitions). Also ELF_MACHINE_NO_REL, ELF_MACHINE_NO_RELA, and ELF_MACHINE_PLT_REL are moved to its own header. Only ancient ABIs need special values (arm, i386, and mips), so a generic one is used as default. The powerpc Elf64_FuncDesc is also moved to its own header, since csu code required its definition (which would require either include elf/ folder or add a full path with elf/). Checked on x86_64, i686, aarch64, armhf, powerpc64, powerpc32, and powerpc64le. Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
* elf: Avoid nested functions in the loader [BZ #27220]Fangrui Song2021-10-071-8/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | dynamic-link.h is included more than once in some elf/ files (rtld.c, dl-conflict.c, dl-reloc.c, dl-reloc-static-pie.c) and uses GCC nested functions. This harms readability and the nested functions usage is the biggest obstacle prevents Clang build (Clang doesn't support GCC nested functions). The key idea for unnesting is to add extra parameters (struct link_map *and struct r_scope_elm *[]) to RESOLVE_MAP, ELF_MACHINE_BEFORE_RTLD_RELOC, ELF_DYNAMIC_RELOCATE, elf_machine_rel[a], elf_machine_lazy_rel, and elf_machine_runtime_setup. (This is inspired by Stan Shebs' ppc64/x86-64 implementation in the google/grte/v5-2.27/master which uses mixed extra parameters and static variables.) Future simplification: * If mips elf_machine_runtime_setup no longer needs RESOLVE_GOTSYM, elf_machine_runtime_setup can drop the `scope` parameter. * If TLSDESC no longer need to be in elf_machine_lazy_rel, elf_machine_lazy_rel can drop the `scope` parameter. Tested on aarch64, i386, x86-64, powerpc64le, powerpc64, powerpc32, sparc64, sparcv9, s390x, s390, hppa, ia64, armhf, alpha, and mips64. In addition, tested build-many-glibcs.py with {arc,csky,microblaze,nios2}-linux-gnu and riscv64-linux-gnu-rv64imafdc-lp64d. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Add narrowing fma functionsJoseph Myers2021-09-221-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds the narrowing fused multiply-add functions from TS 18661-1 / TS 18661-3 / C2X to glibc's libm: ffma, ffmal, dfmal, f32fmaf64, f32fmaf32x, f32xfmaf64 for all configurations; f32fmaf64x, f32fmaf128, f64fmaf64x, f64fmaf128, f32xfmaf64x, f32xfmaf128, f64xfmaf128 for configurations with _Float64x and _Float128; __f32fmaieee128 and __f64fmaieee128 aliases in the powerpc64le case (for calls to ffmal and dfmal when long double is IEEE binary128). Corresponding tgmath.h macro support is also added. The changes are mostly similar to those for the other narrowing functions previously added, especially that for sqrt, so the description of those generally applies to this patch as well. As with sqrt, I reused the same test inputs in auto-libm-test-in as for non-narrowing fma rather than adding extra or separate inputs for narrowing fma. The tests in libm-test-narrow-fma.inc also follow those for non-narrowing fma. The non-narrowing fma has a known bug (bug 6801) that it does not set errno on errors (overflow, underflow, Inf * 0, Inf - Inf). Rather than fixing this or having narrowing fma check for errors when non-narrowing does not (complicating the cases when narrowing fma can otherwise be an alias for a non-narrowing function), this patch does not attempt to check for errors from narrowing fma and set errno; the CHECK_NARROW_FMA macro is still present, but as a placeholder that does nothing, and this missing errno setting is considered to be covered by the existing bug rather than needing a separate open bug. missing-errno annotations are duly added to many of the auto-libm-test-in test inputs for fma. This completes adding all the new functions from TS 18661-1 to glibc, so will be followed by corresponding stdc-predef.h changes to define __STDC_IEC_60559_BFP__ and __STDC_IEC_60559_COMPLEX__, as the support for TS 18661-1 will be at a similar level to that for C standard floating-point facilities up to C11 (pragmas not implemented, but library functions done). (There are still further changes to be done to implement changes to the types of fromfp functions from N2548.) Tested as followed: natively with the full glibc testsuite for x86_64 (GCC 11, 7, 6) and x86 (GCC 11); with build-many-glibcs.py with GCC 11, 7 and 6; cross testing of math/ tests for powerpc64le, powerpc32 hard float, mips64 (all three ABIs, both hard and soft float). The different GCC versions are to cover the different cases in tgmath.h and tgmath.h tests properly (GCC 6 has _Float* only as typedefs in glibc headers, GCC 7 has proper _Float* support, GCC 8 adds __builtin_tgmath).
* Redirect fma calls to __fma in libmJoseph Myers2021-09-152-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | include/math.h has a mechanism to redirect internal calls to various libm functions, that can often be inlined by the compiler, to call non-exported __* names for those functions in the case when the calls aren't inlined, with the redirection being disabled when NO_MATH_REDIRECT. Add fma to the functions to which this mechanism is applied. At present, libm-internal fma calls (generally to __builtin_fma* functions) are only done when it's known the call will be inlined, with alternative code not relying on an fma operation being used in the caller otherwise. This patch is in preparation for adding the TS 18661 / C2X narrowing fma functions to glibc; it will be natural for the narrowing function implementations to call the underlying fma functions unconditionally, with this either being inlined or resulting in an __fma* call. (Using two levels of round-to-odd computation like that, in the case where there isn't an fma hardware instruction, isn't optimal but is certainly a lot simpler for the initial implementation than writing different narrowing fma implementations for all the various pairs of formats.) Tested with build-many-glibcs.py that installed stripped shared libraries are unchanged by the patch (using <https://sourceware.org/pipermail/libc-alpha/2021-September/130991.html> to fix installed library stripping in build-many-glibcs.py). Also tested for x86_64.
* Remove "Contributed by" linesSiddhesh Poyarekar2021-09-0381-135/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | We stopped adding "Contributed by" or similar lines in sources in 2012 in favour of git logs and keeping the Contributors section of the glibc manual up to date. Removing these lines makes the license header a bit more consistent across files and also removes the possibility of error in attribution when license blocks or files are copied across since the contributed-by lines don't actually reflect reality in those cases. Move all "Contributed by" and similar lines (Written by, Test by, etc.) into a new file CONTRIBUTED-BY to retain record of these contributions. These contributors are also mentioned in manual/contrib.texi, so we just maintain this additional record as a courtesy to the earlier developers. The following scripts were used to filter a list of files to edit in place and to clean up the CONTRIBUTED-BY file respectively. These were not added to the glibc sources because they're not expected to be of any use in future given that this is a one time task: https://gist.github.com/siddhesh/b5ecac94eabfd72ed2916d6d8157e7dc https://gist.github.com/siddhesh/15ea1f5e435ace9774f485030695ee02 Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* Remove sysdeps/*/tls-macros.hFangrui Song2021-08-181-65/+0
| | | | | | | | They provide TLS_GD/TLS_LD/TLS_IE/TLS_IE macros for TLS testing. Now that we have migrated to __thread and tls_model attributes, these macros are unused and the tls-macros.h files can retire. Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
* nptl: Move pthread_spin_trylock into libcFlorian Weimer2021-04-231-2/+10
| | | | The symbol was moved using scripts/move-symbol-to-libc.py.
* nptl: Move pthread_spin_lock into libcFlorian Weimer2021-04-231-2/+8
| | | | The symbol was moved using scripts/move-symbol-to-libc.py.
* nptl: Move pthread_spin_init, Move pthread_spin_unlock into libcFlorian Weimer2021-04-231-3/+11
| | | | | | | For some architectures, the two functions are aliased, so these symbols need to be moved at the same time. The symbols were moved using scripts/move-symbol-to-libc.py.
* Reduce the statically linked startup code [BZ #23323]Florian Weimer2021-02-251-10/+2
| | | | | | | | | | | | | | | | | | | It turns out the startup code in csu/elf-init.c has a perfect pair of ROP gadgets (see Marco-Gisbert and Ripoll-Ripoll, "return-to-csu: A New Method to Bypass 64-bit Linux ASLR"). These functions are not needed in dynamically-linked binaries because DT_INIT/DT_INIT_ARRAY are already processed by the dynamic linker. However, the dynamic linker skipped the main program for some reason. For maximum backwards compatibility, this is not changed, and instead, the main map is consulted from __libc_start_main if the init function argument is a NULL pointer. For statically linked binaries, the old approach based on linker symbols is still used because there is nothing else available. A new symbol version __libc_start_main@@GLIBC_2.34 is introduced because new binaries running on an old libc would not run their ELF constructors, leading to difficult-to-debug issues.
* Remove dbl-64/wordsize-64 (part 2)Wilco Dijkstra2021-01-071-1/+0
| | | | | | | | Remove the wordsize-64 implementations by merging them into the main dbl-64 directory. The second patch just moves all wordsize-64 files and removes a few wordsize-64 uses in comments and Implies files. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Update copyright dates with scripts/update-copyrightsPaul Eggert2021-01-02158-158/+158
| | | | | | | | | | | | | | | | I used these shell commands: ../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright (cd ../glibc && git commit -am"[this commit message]") and then ignored the output, which consisted lines saying "FOO: warning: copyright statement not found" for each of 6694 files FOO. I then removed trailing white space from benchtests/bench-pthread-locks.c and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this diagnostic from Savannah: remote: *** pre-commit check failed ... remote: *** error: lines with trailing whitespace found remote: error: hook declined to update refs/heads/master
* aarch64: enforce >=64K guard size [BZ #26691]Szabolcs Nagy2020-10-021-0/+3
| | | | | | | | | | | | | | | | | | | | | | | There are several compiler implementations that allow large stack allocations to jump over the guard page at the end of the stack and corrupt memory beyond that. See CVE-2017-1000364. Compilers can emit code to probe the stack such that the guard page cannot be skipped, but on aarch64 the probe interval is 64K by default instead of the minimum supported page size (4K). This patch enforces at least 64K guard on aarch64 unless the guard is disabled by setting its size to 0. For backward compatibility reasons the increased guard is not reported, so it is only observable by exhausting the address space or parsing /proc/self/maps on linux. On other targets the patch has no effect. If the stack probe interval is larger than a page size on a target then ARCH_MIN_GUARD_SIZE can be defined to get large enough stack guard on libc allocated stacks. The patch does not affect threads with user allocated stacks. Fixes bug 26691.
* linux: Consolidate INLINE_SYSCALLAdhemerval Zanella2020-02-141-1/+1
| | | | | | | | | | | With all Linux ABIs using the expected Linux kABI to indicate syscalls errors, there is no need to replicate the INLINE_SYSCALL. The generic Linux sysdep.h includes errno.h even for !__ASSEMBLER__, which is ok now and it allows cleanup some archaic code that assume otherwise. Checked with a build against all affected ABIs.
* Add libm_alias_finite for _finite symbolsWilco Dijkstra2020-01-031-1/+2
| | | | | | | | | | | | | | | | | | | This patch adds a new macro, libm_alias_finite, to define all _finite symbol. It sets all _finite symbol as compat symbol based on its first version (obtained from the definition at built generated first-versions.h). The <fn>f128_finite symbols were introduced in GLIBC 2.26 and so need special treatment in code that is shared between long double and float128. It is done by adding a list, similar to internal symbol redifinition, on sysdeps/ieee754/float128/float128_private.h. Alpha also needs some tricky changes to ensure we still emit 2 compat symbols for sqrt(f). Passes buildmanyglibc. Co-authored-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
* Update copyright dates with scripts/update-copyrights.Joseph Myers2020-01-01158-158/+158
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* Always use wordsize-64 version of s_trunc.c.Stefan Liebler2019-12-112-2/+2
| | | | | | | | | | This patch replaces s_trunc.c in sysdeps/dbl-64 with the one in sysdeps/dbl-64/wordsize-64 and removes the latter one. The code is not changed except changes in code style. Also adjusted the include path in x86_64 and sparc64 files. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Always use wordsize-64 version of s_ceil.c.Stefan Liebler2019-12-112-2/+2
| | | | | | | | | | This patch replaces s_ceil.c in sysdeps/dbl-64 with the one in sysdeps/dbl-64/wordsize-64 and removes the latter one. The code is not changed except changes in code style. Also adjusted the include path in x86_64 and sparc64 files. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Always use wordsize-64 version of s_floor.c.Stefan Liebler2019-12-112-2/+2
| | | | | | | | | | This patch replaces s_floor.c in sysdeps/dbl-64 with the one in sysdeps/dbl-64/wordsize-64 and removes the latter one. The code is not changed except changes in code style. Also adjusted the include path in x86_64 and sparc64 files. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* elf: Do not run IFUNC resolvers for LD_DEBUG=unused [BZ #24214]Florian Weimer2019-12-021-2/+4
| | | | | | | | | This commit adds missing skip_ifunc checks to aarch64, arm, i386, sparc, and x86_64. A new test case ensures that IRELATIVE IFUNC resolvers do not run in various diagnostic modes of the dynamic loader. Reviewed-By: Szabolcs Nagy <szabolcs.nagy@arm.com>
* sparc: Use atomic compiler builtins on sparcAdhemerval Zanella2019-11-273-176/+0
| | | | | | | | | | | | | | | | | This patch removes the arch-specific atomic instruction, relying on compiler builtins. The __sparc32_atomic_locks support is removed and a configure check is added to check if compiler uses libatomic to implement CAS. It also removes the sparc specific sem_* and pthread_barrier_* implementations. It in turn allows buidling against a LEON3/LEON4 sparcv8 target, although it will still be incompatible with generic sparcv9. Checked on sparcv9-linux-gnu and sparc64-linux-gnu. I also checked with build against sparcv8-linux-gnu with -mcpu=leon3. Tested-by: Andreas Larsson <andreas@gaisler.com>
* Fix three GNU license URLs, along with trailing-newline issues.Paul Eggert2019-09-071-2/+2
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* Prefer https to http for gnu.org and fsf.org URLsPaul Eggert2019-09-07159-159/+159
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
* Fix spellings of contributor names in comments and docPaul Eggert2019-08-2310-10/+10
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* Refactor hp-timing rtld usageAdhemerval Zanella2019-03-221-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch refactor how hp-timing is used on loader code for statistics report. The HP_TIMING_AVAIL and HP_SMALL_TIMING_AVAIL are removed and HP_TIMING_INLINE is used instead to check for hp-timing avaliability. For alpha, which only defines HP_SMALL_TIMING_AVAIL, the HP_TIMING_INLINE is set iff for IS_IN(rtld). Checked on aarch64-linux-gnu, x86_64-linux-gnu, and i686-linux-gnu. I also checked the builds for all afected ABIs. * benchtests/bench-timing.h: Replace HP_TIMING_AVAIL with HP_TIMING_INLINE. * nptl/descr.h: Likewise. * elf/rtld.c (RLTD_TIMING_DECLARE, RTLD_TIMING_NOW, RTLD_TIMING_DIFF, RTLD_TIMING_ACCUM_NT, RTLD_TIMING_SET): Define. (dl_start_final_info, _dl_start_final, dl_main, print_statistics): Abstract hp-timing usage with RTLD_* macros. * sysdeps/alpha/hp-timing.h (HP_TIMING_INLINE): Define iff IS_IN(rtld). (HP_TIMING_AVAIL, HP_SMALL_TIMING_AVAIL): Remove. * sysdeps/generic/hp-timing.h (HP_TIMING_AVAIL, HP_SMALL_TIMING_AVAIL, HP_TIMING_NONAVAIL): Likewise. * sysdeps/ia64/hp-timing.h (HP_TIMING_AVAIL, HP_SMALL_TIMING_AVAIL): Likewise. * sysdeps/powerpc/powerpc32/power4/hp-timing.h (HP_TIMING_AVAIL, HP_SMALL_TIMING_AVAIL): Likewise. * sysdeps/powerpc/powerpc64/hp-timing.h (HP_TIMING_AVAIL, HP_SMALL_TIMING_AVAIL): Likewise. * sysdeps/sparc/sparc32/sparcv9/hp-timing.h (HP_TIMING_AVAIL, HP_SMALL_TIMING_AVAIL): Likewise. * sysdeps/sparc/sparc64/hp-timing.h (HP_TIMING_AVAIL, HP_SMALL_TIMING_AVAIL): Likewise. * sysdeps/x86/hp-timing.h (HP_TIMING_AVAIL, HP_SMALL_TIMING_AVAIL): Likewise. * sysdeps/generic/hp-timing-common.h: Update comment with HP_TIMING_AVAIL removal.
* Break further lines before not after operators.Joseph Myers2019-02-261-22/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch continues the process of fixing coding style to break lines before not after operators in accordance with the GNU Coding Standards, fixing such issues in a non-exhaustive selection of sysdeps files that had them. Tested for x86_64, and with build-many-glibcs.py. * sysdeps/arm/sysdep.h (#if condition): Break lines before rather than after operators. * sysdeps/mach/hurd/fork.c (__fork): Likewise. * sysdeps/mach/hurd/getcwd.c (__hurd_canonicalize_directory_name_internal): Likewise. * sysdeps/mach/hurd/htl/pt-mutex-consistent.c (pthread_mutex_consistent): Likewise. * sysdeps/mach/hurd/htl/pt-mutex-init.c (_pthread_mutex_init): Likewise. * sysdeps/mach/hurd/htl/pt-mutex-transfer-np.c (__pthread_mutex_transfer_np): Likewise. * sysdeps/mach/hurd/htl/pt-mutex-unlock.c (__pthread_mutex_unlock): Likewise. * sysdeps/mach/hurd/htl/pt-mutex.h (ROBUST_LOCK): Likewise. (mtx_owned_p): Likewise. * sysdeps/mach/hurd/htl/pt-mutexattr-getrobust.c (pthread_mutexattr_getrobust): Likewise. * sysdeps/mach/hurd/i386/init-first.c (init1): Likewise. * sysdeps/mach/hurd/i386/trampoline.c (_hurd_setup_sighandler): Likewise. * sysdeps/mach/hurd/ioctl.c (__ioctl): Likewise. * sysdeps/mach/hurd/jmp-unwind.c (_longjmp_unwind): Likewise. * sysdeps/mach/hurd/kill.c (__kill): Likewise. * sysdeps/mach/hurd/mig-reply.c (__mig_get_reply_port): Likewise. * sysdeps/mach/hurd/ptrace.c (ptrace): Likewise. * sysdeps/sparc/sparc64/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/unix/sysv/linux/aarch64/sysdep.h (#if condition): Likewise. * sysdeps/unix/sysv/linux/alpha/ioperm.c (process_cpuinfo): Likewise. * sysdeps/unix/sysv/linux/bits/timex.h (STA_RONLY): Likewise. * sysdeps/unix/sysv/linux/csky/sysdep.h (#if condition): Likewise. * sysdeps/unix/sysv/linux/generic/____longjmp_chk.c (____longjmp_chk): Likewise. * sysdeps/unix/sysv/linux/generic/futimesat.c (futimesat): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h (INTERNAL_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h (INTERNAL_SYSCALL): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c (__get_clockfreq_via_cpuinfo): Likewise.
* Fix SPARC64 handling of R_SPARC_H34 (bug 24231).Joseph Myers2019-02-181-0/+1
| | | | | | | | | | | | | | | | Building glibc with -Wextra shows a -Wimplicit-fallthrough warning for SPARC64 that appears to be a real bug in glibc. The dynamic linker handling of R_SPARC_H34 falls through to that of R_SPARC_H44, which in the case of this code is nonsensical (it means the value computed for R_SPARC_H34 gets overwritten by one computed with the different logic for R_SPARC_H44). Thus, this patch adds the missing break there. Note: I do not have a testcase to demonstrate this bug. Tested with build-many-glibcs.py. [BZ #24231] * sysdeps/sparc/sparc64/dl-machine.h (elf_machine_rela): Add break after R_SPARC_H34 case.
* soft-fp: Properly check _FP_W_TYPE_SIZE [BZ #24066]H.J. Lu2019-01-074-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | quad.h have #if _FP_W_TYPE_SIZE < 64 union _FP_UNION_Q { Use 4 _FP_W_TYPEs } #else union _FP_UNION_Q { Use 2 _FP_W_TYPEs } #endif Replace #if (2 * _FP_W_TYPE_SIZE) < _FP_FRACBITS_Q with #if _FP_W_TYPE_SIZE < 64 to check whether 4 or 2 _FP_W_TYPEs are used for IEEE quad precision. Tested with build-many-glibcs.py. [BZ #24066] * soft-fp/extenddftf2.c: Use "_FP_W_TYPE_SIZE < 64" to check if 4_FP_W_TYPEs are used for IEEE quad precision. * soft-fp/extendhftf2.c: Likewise. * soft-fp/extendsftf2.c: Likewise. * soft-fp/extendxftf2.c: Likewise. * soft-fp/trunctfdf2.c: Likewise. * soft-fp/trunctfhf2.c: Likewise. * soft-fp/trunctfsf2.c: Likewise. * soft-fp/trunctfxf2.c: Likewise. * sysdeps/alpha/ots_cvttx.c: Likewise. * sysdeps/alpha/ots_cvtxt.c: Likewise. * sysdeps/ieee754/soft-fp/s_daddl.c: Likewise. * sysdeps/ieee754/soft-fp/s_ddivl.c: Likewise. * sysdeps/ieee754/soft-fp/s_dmull.c: Likewise. * sysdeps/ieee754/soft-fp/s_dsubl.c: Likewise. * sysdeps/ieee754/soft-fp/s_faddl.c: Likewise. * sysdeps/ieee754/soft-fp/s_fdivl.c: Likewise. * sysdeps/ieee754/soft-fp/s_fmull.c: Likewise. * sysdeps/ieee754/soft-fp/s_fsubl.c: Likewise. * sysdeps/sparc/sparc32/q_dtoq.c: Likewise. * sysdeps/sparc/sparc32/q_qtod.c: Likewise. * sysdeps/sparc/sparc32/q_qtos.c: Likewise. * sysdeps/sparc/sparc32/q_stoq.c: Likewise. * sysdeps/sparc/sparc64/qp_dtoq.c: Likewise. * sysdeps/sparc/sparc64/qp_qtod.c: Likewise. * sysdeps/sparc/sparc64/qp_qtos.c: Likewise. * sysdeps/sparc/sparc64/qp_stoq.c: Likewise.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2019-01-01160-160/+160
| | | | | | | * All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
* Use trunc functions not __trunc functions in glibc libm.Joseph Myers2018-09-202-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Continuing the move to use, within libm, public names for libm functions that can be inlined as built-in functions on many architectures, this patch moves calls to __trunc functions to call the corresponding trunc names instead, with asm redirection to __trunc when the calls are not inlined. Tested for x86_64, and with build-many-glibcs.py. * include/math.h [!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (trunc): Redirect using MATH_REDIRECT. * sysdeps/aarch64/fpu/s_trunc.c: Define NO_MATH_REDIRECT before header inclusion. * sysdeps/aarch64/fpu/s_truncf.c: Likewise. * sysdeps/ieee754/dbl-64/wordsize-64/s_trunc.c: Likewise. * sysdeps/ieee754/float128/s_truncf128.c: Likewise. * sysdeps/ieee754/dbl-64/s_trunc.c: Likewise. * sysdeps/ieee754/flt-32/s_truncf.c: Likewise. * sysdeps/ieee754/ldbl-128/s_truncl.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_trunc.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_truncf.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_trunc.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_truncf.c: Likewise. * sysdeps/riscv/rv64/rvd/s_trunc.c: Likewise. * sysdeps/riscv/rvf/s_truncf.c: Likewise. * sysdeps/sparc/sparc64/fpu/multiarch/s_trunc.c: Likewise. * sysdeps/sparc/sparc64/fpu/multiarch/s_truncf.c: Likewise. * sysdeps/x86_64/fpu/multiarch/s_trunc.c: Likewise. * sysdeps/x86_64/fpu/multiarch/s_truncf.c: Likewise. * sysdeps/m68k/m680x0/fpu/s_trunc_template.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_truncl.c: Likewise. (ceil): Redirect to __ceil. (floor): Redirect to __floor. (trunc): Redirect to __trunc. (__truncl): Call trunc instead of __trunc. * sysdeps/powerpc/fpu/math_private.h [_ARCH_PWR5X] (__trunc): Remove macro. [_ARCH_PWR5X] (__truncf): Likewise. * sysdeps/ieee754/dbl-64/e_gamma_r.c (__ieee754_gamma_r): Use trunc functions instead of __trunc variants. * sysdeps/ieee754/flt-32/e_gammaf_r.c (__ieee754_gammaf_r): Likewise. * sysdeps/ieee754/ldbl-128/e_gammal_r.c (__ieee754_gammal_r): Likewise. * sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c (__ieee754_gammal_r): Likewise. * sysdeps/ieee754/ldbl-96/e_gammal_r.c (__ieee754_gammal_r): Likewise.
* Use ceil functions not __ceil functions in glibc libm.Joseph Myers2018-09-172-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Continuing the move to use, within libm, public names for libm functions that can be inlined as built-in functions on many architectures, this patch moves calls to __ceil functions to call the corresponding ceil names instead, with asm redirection to __ceil when the calls are not inlined. Tested for x86_64, and with build-many-glibcs.py. * include/math.h [!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (ceil): Redirect using MATH_REDIRECT. * sysdeps/aarch64/fpu/s_ceil.c: Define NO_MATH_REDIRECT before header inclusion. * sysdeps/aarch64/fpu/s_ceilf.c: Likewise. * sysdeps/ieee754/dbl-64/s_ceil.c: Likewise. * sysdeps/ieee754/dbl-64/wordsize-64/s_ceil.c: Likewise. * sysdeps/ieee754/float128/s_ceilf128.c: Likewise. * sysdeps/ieee754/flt-32/s_ceilf.c: Likewise. * sysdeps/ieee754/ldbl-128/s_ceill.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_ceill.c: Likewise. * sysdeps/m68k/m680x0/fpu/s_ceil_template.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceil.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceilf.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceil.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceilf.c: Likewise. * sysdeps/riscv/rv64/rvd/s_ceil.c: Likewise. * sysdeps/riscv/rvf/s_ceilf.c: Likewise. * sysdeps/sparc/sparc64/fpu/multiarch/s_ceil.c: Likewise. * sysdeps/sparc/sparc64/fpu/multiarch/s_ceilf.c: Likewise. * sysdeps/x86_64/fpu/multiarch/s_ceil.c: Likewise. * sysdeps/x86_64/fpu/multiarch/s_ceilf.c: Likewise. * sysdeps/powerpc/fpu/math_private.h [_ARCH_PWR5X] (__ceil): Remove macro. * sysdeps/ieee754/dbl-64/e_gamma_r.c (gamma_positive): Use ceil functions instead of __ceil variants. * sysdeps/ieee754/flt-32/e_gammaf_r.c (gammaf_positive): Likewise. * sysdeps/ieee754/ldbl-128/e_gammal_r.c (gammal_positive): Likewise. * sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c (gammal_positive): Likewise. * sysdeps/ieee754/ldbl-128ibm/s_truncl.c (__truncl): Likewise. * sysdeps/ieee754/ldbl-96/e_gammal_r.c (gammal_positive): Likewise. * sysdeps/powerpc/power5+/fpu/s_modf.c (__modf): Likewise. * sysdeps/powerpc/power5+/fpu/s_modff.c (__modff): Likewise.
* Use rint functions not __rint functions in glibc libm.Joseph Myers2018-09-142-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Continuing the move to use, within libm, public names for libm functions that can be inlined as built-in functions on many architectures, this patch moves calls to __rint functions to call the corresponding rint names instead, with asm redirection to __rint when the calls are not inlined. The x86_64 math_private.h is removed as no longer useful after this patch. This patch is relative to a tree with my floor patch <https://sourceware.org/ml/libc-alpha/2018-09/msg00148.html> applied, and much the same considerations arise regarding possibly replacing an IFUNC call with a direct inline expansion. Tested for x86_64, and with build-many-glibcs.py. * include/math.h [!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (rint): Redirect using MATH_REDIRECT. * sysdeps/aarch64/fpu/s_rint.c: Define NO_MATH_REDIRECT before header inclusion. * sysdeps/aarch64/fpu/s_rintf.c: Likewise. * sysdeps/alpha/fpu/s_rint.c: Likewise. * sysdeps/alpha/fpu/s_rintf.c: Likewise. * sysdeps/i386/fpu/s_rintl.c: Likewise. * sysdeps/ieee754/dbl-64/s_rint.c: Likewise. * sysdeps/ieee754/dbl-64/wordsize-64/s_rint.c: Likewise. * sysdeps/ieee754/float128/s_rintf128.c: Likewise. * sysdeps/ieee754/flt-32/s_rintf.c: Likewise. * sysdeps/ieee754/ldbl-128/s_rintl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_rintl.c: Likewise. * sysdeps/m68k/coldfire/fpu/s_rint.c: Likewise. * sysdeps/m68k/coldfire/fpu/s_rintf.c: Likewise. * sysdeps/m68k/m680x0/fpu/s_rint.c: Likewise. * sysdeps/m68k/m680x0/fpu/s_rintf.c: Likewise. * sysdeps/m68k/m680x0/fpu/s_rintl.c: Likewise. * sysdeps/powerpc/fpu/s_rint.c: Likewise. * sysdeps/powerpc/fpu/s_rintf.c: Likewise. * sysdeps/riscv/rv64/rvd/s_rint.c: Likewise. * sysdeps/riscv/rvf/s_rintf.c: Likewise. * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rint.c: Likewise. * sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rintf.c: Likewise. * sysdeps/sparc/sparc64/fpu/multiarch/s_rint.c: Likewise. * sysdeps/sparc/sparc64/fpu/multiarch/s_rintf.c: Likewise. * sysdeps/x86_64/fpu/multiarch/s_rint.c: Likewise. * sysdeps/x86_64/fpu/multiarch/s_rintf.c: Likewise. * sysdeps/x86_64/fpu/math_private.h: Remove file. * math/e_scalb.c (invalid_fn): Use rint functions instead of __rint variants. * math/e_scalbf.c (invalid_fn): Likewise. * math/e_scalbl.c (invalid_fn): Likewise. * sysdeps/ieee754/dbl-64/e_gamma_r.c (__ieee754_gamma_r): Likewise. * sysdeps/ieee754/flt-32/e_gammaf_r.c (__ieee754_gammaf_r): Likewise. * sysdeps/ieee754/k_standard.c (__kernel_standard): Likewise. * sysdeps/ieee754/k_standardl.c (__kernel_standard_l): Likewise. * sysdeps/ieee754/ldbl-128/e_gammal_r.c (__ieee754_gammal_r): Likewise. * sysdeps/ieee754/ldbl-128ibm/e_gammal_r.c (__ieee754_gammal_r): Likewise. * sysdeps/ieee754/ldbl-96/e_gammal_r.c (__ieee754_gammal_r): Likewise. * sysdeps/powerpc/powerpc32/fpu/s_llrint.c (__llrint): Likewise. * sysdeps/powerpc/powerpc32/fpu/s_llrintf.c (__llrintf): Likewise.
* Use floor functions not __floor functions in glibc libm.Joseph Myers2018-09-142-0/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Similar to the changes that were made to call sqrt functions directly in glibc, instead of __ieee754_sqrt variants, so that the compiler could inline them automatically without needing special inline definitions in lots of math_private.h headers, this patch makes libm code call floor functions directly instead of __floor variants, removing the inlines / macros for x86_64 (SSE4.1) and powerpc (POWER5). The redirection used to ensure that __ieee754_sqrt does still get called when the compiler doesn't inline a built-in function expansion is refactored so it can be applied to other functions; the refactoring is arranged so it's not limited to unary functions either (it would be reasonable to use this mechanism for copysign - removing the inline in math_private_calls.h but also eliminating unnecessary local PLT entry use in the cases (powerpc soft-float and e500v1, for IBM long double) where copysign calls don't get inlined). The point of this change is that more architectures can get floor calls inlined where they weren't previously (AArch64, for example), without needing special inline definitions in their math_private.h, and existing such definitions in math_private.h headers can be removed. Note that it's possible that in some cases an inline may be used where an IFUNC call was previously used - this is the case on x86_64, for example. I think the direct calls to floor are still appropriate; if there's any significant performance cost from inline SSE2 floor instead of an IFUNC call ending up with SSE4.1 floor, that indicates that either the function should be doing something else that's faster than using floor at all, or it should itself have IFUNC variants, or that the compiler choice of inlining for generic tuning should change to allow for the possibility that, by not inlining, an SSE4.1 IFUNC might be called at runtime - but not that glibc should avoid calling floor internally. (After all, all the same considerations would apply to any user program calling floor, where it might either be inlined or left as an out-of-line call allowing for a possible IFUNC.) Tested for x86_64, and with build-many-glibcs.py. * include/math.h [!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (MATH_REDIRECT): New macro. [!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (MATH_REDIRECT_LDBL): Likewise. [!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (MATH_REDIRECT_F128): Likewise. [!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (MATH_REDIRECT_UNARY_ARGS): Likewise. [!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (sqrt): Redirect using MATH_REDIRECT. [!_ISOMAC && !(__FINITE_MATH_ONLY__ && __FINITE_MATH_ONLY__ > 0) && !NO_MATH_REDIRECT] (floor): Likewise. * sysdeps/aarch64/fpu/s_floor.c: Define NO_MATH_REDIRECT before header inclusion. * sysdeps/aarch64/fpu/s_floorf.c: Likewise. * sysdeps/ieee754/dbl-64/s_floor.c: Likewise. * sysdeps/ieee754/dbl-64/wordsize-64/s_floor.c: Likewise. * sysdeps/ieee754/float128/s_floorf128.c: Likewise. * sysdeps/ieee754/flt-32/s_floorf.c: Likewise. * sysdeps/ieee754/ldbl-128/s_floorl.c: Likewise. * sysdeps/ieee754/ldbl-128ibm/s_floorl.c: Likewise. * sysdeps/m68k/m680x0/fpu/s_floor_template.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floor.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floorf.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_floor.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_floorf.c: Likewise. * sysdeps/riscv/rv64/rvd/s_floor.c: Likewise. * sysdeps/riscv/rvf/s_floorf.c: Likewise. * sysdeps/sparc/sparc64/fpu/multiarch/s_floor.c: Likewise. * sysdeps/sparc/sparc64/fpu/multiarch/s_floorf.c: Likewise. * sysdeps/x86_64/fpu/multiarch/s_floor.c: Likewise. * sysdeps/x86_64/fpu/multiarch/s_floorf.c: Likewise. * sysdeps/powerpc/fpu/math_private.h [_ARCH_PWR5X] (__floor): Remove macro. [_ARCH_PWR5X] (__floorf): Likewise. * sysdeps/x86_64/fpu/math_private.h [__SSE4_1__] (__floor): Remove inline function. [__SSE4_1__] (__floorf): Likewise. * math/w_lgamma_main.c (LGFUNC (__lgamma)): Use floor functions instead of __floor variants. * math/w_lgamma_r_compat.c (__lgamma_r): Likewise. * math/w_lgammaf_main.c (LGFUNC (__lgammaf)): Likewise. * math/w_lgammaf_r_compat.c (__lgammaf_r): Likewise. * math/w_lgammal_main.c (LGFUNC (__lgammal)): Likewise. * math/w_lgammal_r_compat.c (__lgammal_r): Likewise. * math/w_tgamma_compat.c (__tgamma): Likewise. * math/w_tgamma_template.c (M_DECL_FUNC (__tgamma)): Likewise. * math/w_tgammaf_compat.c (__tgammaf): Likewise. * math/w_tgammal_compat.c (__tgammal): Likewise. * sysdeps/ieee754/dbl-64/e_lgamma_r.c (sin_pi): Likewise. * sysdeps/ieee754/dbl-64/k_rem_pio2.c (__kernel_rem_pio2): Likewise. * sysdeps/ieee754/dbl-64/lgamma_neg.c (__lgamma_neg): Likewise. * sysdeps/ieee754/flt-32/e_lgammaf_r.c (sin_pif): Likewise. * sysdeps/ieee754/flt-32/lgamma_negf.c (__lgamma_negf): Likewise. * sysdeps/ieee754/ldbl-128/e_lgammal_r.c (__ieee754_lgammal_r): Likewise. * sysdeps/ieee754/ldbl-128/e_powl.c (__ieee754_powl): Likewise. * sysdeps/ieee754/ldbl-128/lgamma_negl.c (__lgamma_negl): Likewise. * sysdeps/ieee754/ldbl-128/s_expm1l.c (__expm1l): Likewise. * sysdeps/ieee754/ldbl-128ibm/e_lgammal_r.c (__ieee754_lgammal_r): Likewise. * sysdeps/ieee754/ldbl-128ibm/e_powl.c (__ieee754_powl): Likewise. * sysdeps/ieee754/ldbl-128ibm/lgamma_negl.c (__lgamma_negl): Likewise. * sysdeps/ieee754/ldbl-128ibm/s_expm1l.c (__expm1l): Likewise. * sysdeps/ieee754/ldbl-128ibm/s_truncl.c (__truncl): Likewise. * sysdeps/ieee754/ldbl-96/e_lgammal_r.c (sin_pi): Likewise. * sysdeps/ieee754/ldbl-96/lgamma_negl.c (__lgamma_negl): Likewise. * sysdeps/powerpc/power5+/fpu/s_modf.c (__modf): Likewise. * sysdeps/powerpc/power5+/fpu/s_modff.c (__modff): Likewise.
* [BZ #20271] Add newlines in __libc_fatal calls.Paul Pluzhnikov2018-08-311-1/+1
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* Remove sysdeps/sparc/sparc64/soft-fp directory.Joseph Myers2018-05-2534-121/+38
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As per <https://sourceware.org/ml/libc-alpha/2014-10/msg00369.html>, there should not be separate sysdeps/<arch>/soft-fp directories when those are used by all configurations that use sysdeps/<arch>, and, more generally, should not be sysdeps/foo/Implies files pointing to a subdirectory foo/bar. This patch eliminates the sysdeps/sparc/sparc64/soft-fp directory accordingly, merging its contents into sysdeps/sparc/sparc64. This completes removing the unnecessary <arch>/soft-fp sysdeps directories. sysdeps/sparc/sparc64/soft-fp/e_ilogbl.c is removed rather than moved. It was not in fact used previously - the ldbl-128 version of e_ilogbl.c was used instead - and moving it into sysdeps/sparc/sparc64 results in it being used, but causing a build failure because of FP_DECL_EX declaring an unused variable (as I noted in <https://sourceware.org/ml/libc-alpha/2013-10/msg00457.html> that file doesn't appear to use FP_DECL_EX). Given that the file was previously unused and so presumably not tested recently, removing it is the safe way to avoid this patch changing what actually gets built into glibc (if this file should turn out more efficient than the ldbl-128 e_ilogbl.c, it can always be added back in future with the build failure fixed). Tested with build-many-glibcs.py that installed stripped shared libraries for sparc configurations are unchanged by this patch. * sysdeps/sparc/sparc64/Implies: Remove sparc/sparc64/soft-fp. * sysdeps/sparc/sparc64/Makefile [$(subdir) = soft-fp] (sparc64-quad-routines): New variable. Moved from .... [$(subdir) = soft-fp] (sysdep_routines): Add $(sparc64-quad-routines). Moved from .... [$(subdir) = math] (CPPFLAGS): Add -I../soft-fp/. Moved from .... * sysdeps/sparc/sparc64/soft-fp/Makefile: ... here. Remove file. * sysdeps/sparc/sparc64/Versions (libc): Add GLIBC_2.2 symbols moved from .... * sysdeps/sparc/sparc64/soft-fp/Versions: ... here. Remove file. * sysdeps/sparc/sparc64/soft-fp/e_ilogbl.c: Remove file. * sysdeps/sparc/sparc64/soft-fp/qp_add.c: Move to .... * sysdeps/sparc/sparc64/qp_add.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_cmp.c: Move to .... * sysdeps/sparc/sparc64/qp_cmp.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_cmpe.c: Move to .... * sysdeps/sparc/sparc64/qp_cmpe.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_div.c: Move to .... * sysdeps/sparc/sparc64/qp_div.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_dtoq.c: Move to .... * sysdeps/sparc/sparc64/qp_dtoq.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_feq.c: Move to .... * sysdeps/sparc/sparc64/qp_feq.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_fge.c: Move to .... * sysdeps/sparc/sparc64/qp_fge.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_fgt.c: Move to .... * sysdeps/sparc/sparc64/qp_fgt.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_fle.c: Move to .... * sysdeps/sparc/sparc64/qp_fle.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_flt.c: Move to .... * sysdeps/sparc/sparc64/qp_flt.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_fne.c: Move to .... * sysdeps/sparc/sparc64/qp_fne.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_itoq.c: Move to .... * sysdeps/sparc/sparc64/qp_itoq.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_mul.c: Move to .... * sysdeps/sparc/sparc64/qp_mul.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_neg.S: Move to .... * sysdeps/sparc/sparc64/qp_neg.S: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_qtod.c: Move to .... * sysdeps/sparc/sparc64/qp_qtod.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_qtoi.c: Move to .... * sysdeps/sparc/sparc64/qp_qtoi.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_qtos.c: Move to .... * sysdeps/sparc/sparc64/qp_qtos.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_qtoui.c: Move to .... * sysdeps/sparc/sparc64/qp_qtoui.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_qtoux.c: Move to .... * sysdeps/sparc/sparc64/qp_qtoux.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_qtox.c: Move to .... * sysdeps/sparc/sparc64/qp_qtox.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_sqrt.c: Move to .... * sysdeps/sparc/sparc64/qp_sqrt.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_stoq.c: Move to .... * sysdeps/sparc/sparc64/qp_stoq.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_sub.c: Move to .... * sysdeps/sparc/sparc64/qp_sub.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_uitoq.c: Move to .... * sysdeps/sparc/sparc64/qp_uitoq.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_util.c: Move to .... * sysdeps/sparc/sparc64/qp_util.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_uxtoq.c: Move to .... * sysdeps/sparc/sparc64/qp_uxtoq.c: ... here. * sysdeps/sparc/sparc64/soft-fp/qp_xtoq.c: Move to .... * sysdeps/sparc/sparc64/qp_xtoq.c: ... here. * sysdeps/sparc/sparc64/soft-fp/sfp-machine.h: Move to .... * sysdeps/sparc/sparc64/sfp-machine.h: ... here.
* elf: Unify symbol address run-time calculation [BZ #19818]Maciej W. Rozycki2018-04-041-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Wrap symbol address run-time calculation into a macro and use it throughout, replacing inline calculations. There are a couple of variants, most of them different in a functionally insignificant way. Most calculations are right following RESOLVE_MAP, at which point either the map or the symbol returned can be checked for validity as the macro sets either both or neither. In some places both the symbol and the map has to be checked however. My initial implementation therefore always checked both, however that resulted in code larger by as much as 0.3%, as many places know from elsewhere that no check is needed. I have decided the size growth was unacceptable. Having looked closer I realized that it's the map that is the culprit. Therefore I have modified LOOKUP_VALUE_ADDRESS to accept an additional boolean argument telling it to access the map without checking it for validity. This in turn has brought quite nice results, with new code actually being smaller for i686, and MIPS o32, n32 and little-endian n64 targets, unchanged in size for x86-64 and, unusually, marginally larger for big-endian MIPS n64, as follows: i686: text data bss dec hex filename 152255 4052 192 156499 26353 ld-2.27.9000-base.so 152159 4052 192 156403 262f3 ld-2.27.9000-elf-symbol-value.so MIPS/o32/el: text data bss dec hex filename 142906 4396 260 147562 2406a ld-2.27.9000-base.so 142890 4396 260 147546 2405a ld-2.27.9000-elf-symbol-value.so MIPS/n32/el: text data bss dec hex filename 142267 4404 260 146931 23df3 ld-2.27.9000-base.so 142171 4404 260 146835 23d93 ld-2.27.9000-elf-symbol-value.so MIPS/n64/el: text data bss dec hex filename 149835 7376 408 157619 267b3 ld-2.27.9000-base.so 149787 7376 408 157571 26783 ld-2.27.9000-elf-symbol-value.so MIPS/o32/eb: text data bss dec hex filename 142870 4396 260 147526 24046 ld-2.27.9000-base.so 142854 4396 260 147510 24036 ld-2.27.9000-elf-symbol-value.so MIPS/n32/eb: text data bss dec hex filename 142019 4404 260 146683 23cfb ld-2.27.9000-base.so 141923 4404 260 146587 23c9b ld-2.27.9000-elf-symbol-value.so MIPS/n64/eb: text data bss dec hex filename 149763 7376 408 157547 2676b ld-2.27.9000-base.so 149779 7376 408 157563 2677b ld-2.27.9000-elf-symbol-value.so x86-64: text data bss dec hex filename 148462 6452 400 155314 25eb2 ld-2.27.9000-base.so 148462 6452 400 155314 25eb2 ld-2.27.9000-elf-symbol-value.so [BZ #19818] * sysdeps/generic/ldsodefs.h (LOOKUP_VALUE_ADDRESS): Add `set' parameter. (SYMBOL_ADDRESS): New macro. [!ELF_FUNCTION_PTR_IS_SPECIAL] (DL_SYMBOL_ADDRESS): Use SYMBOL_ADDRESS for symbol address calculation. * elf/dl-runtime.c (_dl_fixup): Likewise. (_dl_profile_fixup): Likewise. * elf/dl-symaddr.c (_dl_symbol_address): Likewise. * elf/rtld.c (dl_main): Likewise. * sysdeps/aarch64/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/alpha/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/arm/dl-machine.h (elf_machine_rel): Likewise. (elf_machine_rela): Likewise. * sysdeps/hppa/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/hppa/dl-symaddr.c (_dl_symbol_address): Likewise. * sysdeps/i386/dl-machine.h (elf_machine_rel): Likewise. (elf_machine_rela): Likewise. * sysdeps/ia64/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/m68k/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/microblaze/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/mips/dl-machine.h (ELF_MACHINE_BEFORE_RTLD_RELOC): Likewise. (elf_machine_reloc): Likewise. (elf_machine_got_rel): Likewise. * sysdeps/mips/dl-trampoline.c (__dl_runtime_resolve): Likewise. * sysdeps/nios2/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/powerpc/powerpc32/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/powerpc/powerpc64/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/riscv/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/s390/s390-32/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/s390/s390-64/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/sh/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/sparc/sparc32/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/sparc/sparc64/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/tile/dl-machine.h (elf_machine_rela): Likewise. * sysdeps/x86_64/dl-machine.h (elf_machine_rela): Likewise. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* sparc: Check PIC instead of SHARED in start.S [BZ #22638]H.J. Lu2018-02-051-2/+2
| | | | | | | | | | Since start.o may be compiled as PIC, we should check PIC instead of SHARED. [BZ #22638] * sysdeps/sparc/sparc32/start.S (_start): Check PIC instead of SHARED. * sysdeps/sparc/sparc64/start.S (_start): Likewise.
* Update copyright dates with scripts/update-copyrights.Joseph Myers2018-01-01161-161/+161
| | | | | | | * All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
* sparc: M7 optimized memset/bzeroPatrick McGehearty2017-12-144-1/+342
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Support added to identify Sparc M7/T7/S7/M8/T8 processor capability. Performance tests run on Sparc S7 using new code and old niagara4 code. Optimizations for memset also apply to bzero as they share code. For memset/bzero, performance comparison with niagara4 code: For memset nonzero data, 256-1023 bytes - 60-90% gain (in cache); 5% gain (out of cache) 1K+ bytes - 80-260% gain (in cache); 40-80% gain (out of cache) For memset zero data (and bzero), 256-1023 bytes - 80-120% gain (in cache), 0% gain (out of cache) 1024+ bytes - 2-4x gain (in cache), 10-35% gain (out of cache) Tested in sparcv9-*-* and sparc64-*-* targets in both multi and non-multi arch configurations. Patrick McGehearty <patrick.mcgehearty@oracle.com> Adhemerval Zanella <adhemerval.zanella@linaro.org> * sysdeps/sparc/sparc32/sparcv9/multiarch/Makefile (sysdeps_routines): Add memset-niagara7. * sysdeps/sparc/sparc64/multiarch/Makefile (sysdes_rotuines): Likewise. * sysdeps/sparc/sparc32/sparcv9/multiarch/memset-niagara7.S: New file. * sysdeps/sparc/sparc64/multiarch/memset-niagara7.S: Likewise. * sysdeps/sparc/sparc64/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Add __bzero_niagara7 and __memset_niagara7. * sysdeps/sparc/sparc64/multiarch/ifunc-memset.h (IFUNC_SELECTOR): Add niagara7 option. * NEWS: Mention sparc m7 optimized memcpy, mempcpy, memmove, and memset.
* sparc: M7 optimized memcpy/mempcpy/memmovePatrick McGehearty2017-12-148-1/+1063
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Support added to identify Sparc M7/T7/S7/M8/T8 processor capability. Performance tests run on Sparc S7 using new code and old niagara4 code. Optimizations for memcpy also apply to mempcpy and memmove where they share code. Optimizations for memset also apply to bzero as they share code. For memcpy/mempcpy/memmove, performance comparison with niagara4 code: Long word aligned data 0-127 bytes - minimal changes 128-1023 bytes - 7-30% gain 1024+ bytes - 1-7% gain (in cache); 30-100% gain (out of cache) Word aligned data 0-127 bytes - 50%+ gain 128-1023 bytes - 10-200% gain 1024+ bytes - 0-15% gain (in cache); 5-50% gain (out of cache) Unaligned data 0-127 bytes - 0-70%+ gain 128-447 bytes - 40-80%+ gain 448-511 bytes - 1-3% loss 512-4096 bytes - 2-3% gain (in cache); 0-20% gain (out of cache) 4096+ bytes - ± 3% (in cache); 20-50% gain (out of cache) Tested in sparcv9-*-* and sparc64-*-* targets in both multi and non-multi arch configurations. Patrick McGehearty <patrick.mcgehearty@oracle.com> Adhemerval Zanella <adhemerval.zanella@linaro.org> * sysdeps/sparc/sparc32/sparcv9/multiarch/Makefile (sysdeps_routines): Add memcpy-memmove-niagara7 and memmove-ultra1. * sysdeps/sparc/sparc64/multiarch/Makefile (sysdeps_routines): Likewise. * sysdeps/sparc/sparc32/sparcv9/multiarch/memcpy-memmove-niagara7.S: New file. * sysdeps/sparc/sparc32/sparcv9/multiarch/memmove-ultra1.S: Likewise. * sysdeps/sparc/sparc32/sparcv9/multiarch/rtld-memmove.c: Likewise. * sysdeps/sparc/sparc64/multiarch/ifunc-impl-list.c (__libc_ifunc_impl_list): Add __memcpy_niagara7, __mempcpy_niagara7, and __memmove_niagara7. * sysdeps/sparc/sparc64/multiarch/ifunc-memcpy.h (IFUNC_SELECTOR): Add niagara7 option. * sysdeps/sparc/sparc64/multiarch/memmove.c: New file. * sysdeps/sparc/sparc64/multiarch/ifunc-memmove.h: Likewise. * sysdeps/sparc/sparc64/multiarch/memcpy-memmove-niagara7.S: Likewise. * sysdeps/sparc/sparc64/multiarch/memmove-ultra1.S: Likewise. * sysdeps/sparc/sparc64/multiarch/rtld-memmove.c: Likewise.
* sparc: assembly version of memmove for ultra1+Jose E. Marchesi2017-12-142-0/+188
| | | | | | | | | | | | Tested in sparcv9-*-* and sparc64-*-* targets in both non-multi-arch and multi-arch configurations. * sysdeps/sparc/sparc32/sparcv9/memmove.S: New file. * sysdeps/sparc/sparc32/sparcv9/rtld-memmove.c: Likewise. * sysdeps/sparc/sparc64/memmove.S: Likewise. * sysdeps/sparc/sparc64/rtld-memmove.c: Likewise. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* sparc: refactor cpu_relax to CAdhemerval Zanella2017-12-012-67/+38
| | | | | | | | | * sysdeps/sparc/sparc64/cpu_relax.c: New file. * sysdeps/sparc/sparc32/sparcv9/cpu_relax.c: Likewise. * sysdeps/sparc/sparc64/cpu_relax.S: Remove file. * sysdeps/sparc/sparc32/sparcv9/cpu_relax.S: Likewise. Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* sparc: refactor sparc64 __mpn_add_n selector to CAdhemerval Zanella2017-11-304-58/+32
| | | | | | | | | | | | | | | | This patch refactors the sparc64 ifunc selector to a C implementation. Also, the generic symbol is moved to its own implementation file add_n-generic.S). Checked on sparc64-linux-gnu and sparcv9-linux-gnu. * sysdeps/sparc/sparc64/multiarch/Makefile (sysdep_routines): Add add_n-generic. * sysdeps/sparc/sparc64/multiarch/add_n-generic.S: New file. * sysdeps/sparc/sparc64/multiarch/add_n.c: Likewise. * sysdeps/sparc/sparc64/multiarch/add_n.S: Remove file. Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* sparc: refactor sparc64 __mpn_submul_1 selector to CAdhemerval Zanella2017-11-304-57/+32
| | | | | | | | | | | | | | | | This patch refactors the sparc64 ifunc selector to a C implementation. Also, the generic symbol is moved to its own implementation file submul_1-generic.S). Checked on sparc64-linux-gnu and sparcv9-linux-gnu. * sysdeps/sparc/sparc64/multiarch/Makefile (sysdep_routines): Add submul_1-generic. * sysdeps/sparc/sparc64/multiarch/submul_1-generic.S: New file. * sysdeps/sparc/sparc64/multiarch/submul_1.c: Likewise. * sysdeps/sparc/sparc64/multiarch/submul_1.S: Remove file. Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* sparc: refactor sparc64 __mpn_addmul_1 selector to CAdhemerval Zanella2017-11-304-58/+32
| | | | | | | | | | | | | | | | This patch refactors the sparc64 ifunc selector to a C implementation. Also, the generic symbol is moved to its own implementation file addmul_1-generic.S). Checked on sparc64-linux-gnu and sparcv9-linux-gnu. * sysdeps/sparc/sparc64/multiarch/Makefile (sysdep_routines): Add addmul_1-generic. * sysdeps/sparc/sparc64/multiarch/addmul_1-generic.S: New file. * sysdeps/sparc/sparc64/multiarch/addmul_1.c: Likewise. * sysdeps/sparc/sparc64/multiarch/addmul_1.S: Remove file. Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* sparc: refactor sparc64 __mpn_sub_n selector to CAdhemerval Zanella2017-11-304-57/+31
| | | | | | | | | | | | | | | | This patch refactors the sparc64 ifunc selector to a C implementation. Also, the generic symbol is moved to its own implementation file sub_n-generic.S). Checked on sparc64-linux-gnu and sparcv9-linux-gnu. * sysdeps/sparc/sparc64/multiarch/Makefile (sysdep_routines): Add sub_n-generic. * sysdeps/sparc/sparc64/multiarch/sub_n-generic.S: New file. * sysdeps/sparc/sparc64/multiarch/sub_n.c: Likewise. * sysdeps/sparc/sparc64/multiarch/sub_n.S: Remove file. Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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