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12 Commits

Author SHA1 Message Date
Paul Eggert
2b778ceb40 Update copyright dates with scripts/update-copyrights 
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
 2021-01-02 12:17:34 -08:00
Szabolcs Nagy
45b1e17e91 aarch64: use PTR_ARG and SIZE_ARG instead of DELOUSE 
DELOUSE was added to asm code to make them compatible with non-LP64
ABIs, but it is an unfortunate name and the code was not compatible
with ABIs where pointer and size_t are different. Glibc currently
only supports the LP64 ABI so these macros are not really needed or
tested, but for now the name is changed to be more meaningful instead
of removing them completely.

Some DELOUSE macros were dropped: clone, strlen and strnlen used it
unnecessarily.

The out of tree ILP32 patches are currently not maintained and will
likely need a rework to rebase them on top of the time64 changes.
 2020-12-31 16:50:58 +00:00
Andrea Corallo
49beaaec1b aarch64: MTE compatible strchr 
Introduce an Arm MTE compatible strchr implementation.

The existing implementation assumes that any access to the pages in
which the string resides is safe.  This assumption is not true when
MTE is enabled.  This patch updates the algorithm to ensure that
accesses remain within the bounds of an MTE tag (16-byte chunks) and
improves overall performance.

Benchmarked on Cortex-A72, Cortex-A53, Neoverse N1.

Co-authored-by: Wilco Dijkstra <wilco.dijkstra@arm.com>
 2020-06-09 09:20:27 +01:00
Joseph Myers
d614a75396 Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
Paul Eggert
5a82c74822 Prefer https to http for gnu.org and fsf.org URLs 
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
 2019-09-07 02:43:31 -07:00
Joseph Myers
04277e02d7 Update copyright dates with scripts/update-copyrights. 
* 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.
 2019-01-01 00:11:28 +00:00
Joseph Myers
688903eb3e Update copyright dates with scripts/update-copyrights. 
* 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.
 2018-01-01 00:32:25 +00:00
Joseph Myers
bfff8b1bec Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Steve Ellcey
389d1f1b23 Partial ILP32 support for aarch64. 
* sysdeps/aarch64/crti.S: Add include of sysdep.h.
	(call_weak_fn): Use PTR_REG to get correct reg name in ILP32.
	* sysdeps/aarch64/dl-irel.h: Add include of sysdep.h.
	(elf_irela): Use AARCH64_R macro to get correct relocation in ILP32.
	* sysdeps/aarch64/dl-machine.h: Add include of sysdep.h.
	(elf_machine_load_address, RTLD_START, RTLD_START_1, RTLD_START,
	elf_machine_type_class, ELF_MACHINE_JMP_SLOT, elf_machine_rela,
	elf_machine_lazy_rel): Add ifdef's for ILP32 support.
	* sysdeps/aarch64/dl-tlsdesc.S (_dl_tlsdesc_return,
	_dl_tlsdesc_return_lazy, _dl_tlsdesc_dynamic,
	_dl_tlsdesc_resolve_hold): Extend pointers in ILP32, use PTR_REG
	to get correct reg name for ILP32.
	* sysdeps/aarch64/dl-trampoline.S (ip01): New Macro.
	(RELA_SIZE): New Macro.
	(_dl_runtime_resolve, _dl_runtime_profile): Use new macros and PTR_REG
	to support ILP32.
	* sysdeps/aarch64/jmpbuf-unwind.h (_JMPBUF_CFA_UNWINDS_ADJ): Add
	cast for ILP32 mode.
	* sysdeps/aarch64/memcmp.S (memcmp): Extend arg pointers for ILP32 mode.
	* sysdeps/aarch64/memcpy.S (memmove, memcpy): Ditto.
	* sysdeps/aarch64/memset.S (__memset): Ditto.
	* sysdeps/aarch64/strchr.S (strchr): Ditto.
	* sysdeps/aarch64/strchrnul.S (__strchrnul): Ditto.
	* sysdeps/aarch64/strcmp.S (strcmp): Ditto.
	* sysdeps/aarch64/strcpy.S (strcpy): Ditto.
	* sysdeps/aarch64/strlen.S (__strlen): Ditto.
	* sysdeps/aarch64/strncmp.S (strncmp): Ditto.
	* sysdeps/aarch64/strnlen.S (strnlen): Ditto.
	* sysdeps/aarch64/strrchr.S (strrchr): Ditto.
	* sysdeps/unix/sysv/linux/aarch64/clone.S: Ditto.
	* sysdeps/unix/sysv/linux/aarch64/setcontext.S (__setcontext): Ditto.
	* sysdeps/unix/sysv/linux/aarch64/swapcontext.S (__swapcontext): Ditto.
	* sysdeps/aarch64/__longjmp.S (__longjmp): Extend pointers in ILP32,
	change PTR_MANGLE call to use register numbers instead of names.
	* sysdeps/unix/sysv/linux/aarch64/getcontext.S (__getcontext): Ditto.
	* sysdeps/aarch64/setjmp.S (__sigsetjmp): Extend arg pointers for
	ILP32 mode, change PTR_MANGLE calls to use register numbers.
	* sysdeps/aarch64/start.S (_start): Ditto.
	* sysdeps/aarch64/nptl/bits/pthreadtypes.h
	(__PTHREAD_RWLOCK_INT_FLAGS_SHARED): New define.
	(__SIZEOF_PTHREAD_ATTR_T, __SIZEOF_PTHREAD_MUTEX_T,
	__SIZEOF_PTHREAD_MUTEXATTR_T, __SIZEOF_PTHREAD_COND_T,
	__SIZEOF_PTHREAD_COND_COMPAT_T, __SIZEOF_PTHREAD_CONDATTR_T,
	__SIZEOF_PTHREAD_RWLOCK_T, __SIZEOF_PTHREAD_RWLOCKATTR_T,
	__SIZEOF_PTHREAD_BARRIER_T, __SIZEOF_PTHREAD_BARRIERATTR_T):
	Make defined values dependent on __ILP32__.
	* sysdeps/aarch64/nptl/bits/semaphore.h (__SIZEOF_SEM_T): Change define.
	(sem_t): Change __align type.
	* sysdeps/aarch64/sysdep.h (AARCH64_R, PTR_REG, PTR_LOG_SIZE, DELOUSE,
	PTR_SIZE): New Macros.
	(LDST_PCREL, LDST_GLOBAL) Update to use PTR_REG.
	* sysdeps/unix/sysv/linux/aarch64/bits/fcntl.h (O_LARGEFILE):
	Set when in ILP32 mode.
	(F_GETLK64, F_SETLK64, F_SETLKW64): Only set in LP64 mode.
	* sysdeps/unix/sysv/linux/aarch64/dl-cache.h (DL_CACHE_DEFAULT_ID):
	Set elf flags for ILP32.
	(add_system_dir): Set ILP32 library directories.
	* sysdeps/unix/sysv/linux/aarch64/init-first.c
	(_libc_vdso_platform_setup): Set minimum kernel version for ILP32.
	* sysdeps/unix/sysv/linux/aarch64/ldconfig.h
	(SYSDEP_KNOWN_INTERPRETER_NAMES): Add ILP32 names.
	* sysdeps/unix/sysv/linux/aarch64/sigcontextinfo.h (GET_PC, SET_PC):
	New Macros.
	* sysdeps/unix/sysv/linux/aarch64/sysdep.h: Handle ILP32 pointers.
 2016-11-28 09:01:23 -08:00
Joseph Myers
f7a9f785e5 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Joseph Myers
b168057aaa Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
Richard Earnshaw
f940b96522 [AArch64] Add optimized strchr. 
Implementation of strchr for AArch64.  Speedups taken from micro-bench
show the improvements relative to the standard C code.

The use of LD1 means we have identical code for both big- and
little-endian systems.
 2014-06-19 11:03:59 +01:00