I've improved the following implementation of memcpy:
"sysdeps/i386/i686/multiarch/memcpy-ssse3.S".
The patch includes some minor style fixes, but the important part is
just using prefetch loops for the case:
DATA_CACHE_SIZE_HALF <= len < SHARED_CACHE_SIZE_HALF and
src and dst pointers have unequal 16 byte alignments.
This gives from 6% - 50% performance boost on the atom machine, about
24,73% in geometric mean.
[BZ #13928] A DNS request consists of multiple resources combined into
a single hostent, including multiple CNAME records that may have been
assigned different TTL values. In such a case, nscd should take the
least TTL among all of the resources as the timeout for the hostent
before it is reloaded in its cache so that the hostent remains stale
in the database for the least amount of time.
It isn't necessary to buffer the last character of strings. This can cause a
bug with strings that have 1 character between 0x0041 and 0x01b0.
[BZ #13691]
* iconvdata/tcvn5712-1.c (FROM_LOOP): Fix a bug when converting strings
with only 1 character between 0x0041 and 0x01b0.
* wcsmbs/Makefile (tests): Add tst-mbsnrtowcs.
* wcsmbs/tst-mbsnrtowcs.c: New file.
* sysdeps/sparc/sparc64/multiarch/memcpy.S: Provide a hidden def to
the IFUNC routine in the libc case.
* sysdeps/sparc/sparc64/multiarch/memcpy.S: Likewise.
* sysdeps/sparc/sparc32/sparcv9/multiarch/rtld-memset.c: New file.
* sysdeps/sparc/sparc32/sparcv9/multiarch/rtld-memcpy.c: New file.
* sysdeps/sparc/sparc32/sparcv9/rtld-memset.c: New file.
* sysdeps/sparc/sparc32/sparcv9/rtld-memcpy.c: New file.
* sysdeps/sparc/sparc64/multiarch/rtld-memset.c: New file.
* sysdeps/sparc/sparc64/multiarch/rtld-memcpy.c: New file.
* sysdeps/sparc/sparc64/rtld-memset.c: New file.
* sysdeps/sparc/sparc64/rtld-memcpy.c: New file.
* sysdeps/sparc/Makefile: Add -fPIC to ASFLAGS-.os here....
* sysdeps/sparc/sparc32/Makefile: rather than here...
* sysdeps/sparc/sparc64/Makefile: and here.
Also fix a bug in libc_feupdateenv_53bit: don't force the rounding
precision back to _FPU_EXTENDED, instead restore the precision that
the user had in effect beforehand.
[BZ #6471]
* sysdeps/unix/sysv/linux/shmat.c (shmat): Test for syscall errors
properly.
* sysdeps/unix/sysv/linux/sparc/getshmlba.c: New file.
* sysdeps/unix/sysv/linux/sparc/Makefile: Add getshmlba to
sysdep_routines when subdir is sysvipc.
* sysdeps/unix/sysv/linux/sparc/bits/shm.h (SHMLBA): Use new
__getshmlba helper.
* sysdeps/sparc/sparc64/fpu/s_fmax.S: New file.
* sysdeps/sparc/sparc64/fpu/s_fmaxf.S: New file.
* sysdeps/sparc/sparc64/fpu/s_fmin.S: New file.
* sysdeps/sparc/sparc64/fpu/s_fminf.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/s_fmax.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/s_fmaxf.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/s_fmin.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/s_fminf.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_fmax.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_fmaxf-vis3.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_fmaxf.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_fmin-vis3.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_fmin.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_fminf-vis3.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_fminf.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fmax-vis3.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fmax.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fmaxf-vis3.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fmaxf.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fmin-vis3.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fmin.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fminf-vis3.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fminf.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/Makefile: Add new vis3
fmin/fmax sysdep routines.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/Makefile: Likewise.
* sysdeps/sparc/sparc64/fpu/multiarch/s_ceil-vis3.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_ceil.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_ceilf-vis3.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_ceilf.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_finite-vis3.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_finite.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_finitef-vis3.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_finitef.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_floor-vis3.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_floor.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_floorf-vis3.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_floorf.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_isinf-vis3.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_isinf.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_isinff-vis3.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_isinff.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_isnan-vis3.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_isnan.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_isnanf-vis3.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_isnanf.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_lrint-vis3.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_lrint.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_lrintf-vis3.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_lrintf.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_rint-vis3.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_rint.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_rintf-vis3.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_rintf.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/Makefile: Add new VIS3 routines.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_ceil-vis3.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_ceil.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_ceilf-vis3.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_ceilf.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fabs-vis3.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fabs.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fabsf-vis3.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_fabsf.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_floor-vis3.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_floor.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_floorf-vis3.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_floorf.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_llrint-vis3.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_llrint.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_llrintf-vis3.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_llrintf.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rint-vis3.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rint.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rintf-vis3.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_rintf.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/w_sqrt-vis3.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/w_sqrt.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/w_sqrtf-vis3.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/w_sqrtf.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/Makefile: Add new VIS3 routines.
* sysdeps/sparc/sparc32/sparcv9/fpu/unix/sysv/linux/multiarch/Implies:
New file.
* sysdeps/sparc/configure.in: New file.
* sysdeps/sparc/configure: Generate.
* configure.in (libc_cv_sparc_as_vis3): Substitute.
* configure: Regenerate.
* config.h.in (HAVE_AS_VIS3_SUPPORT): New.
* config.make.in (have-as-vis3): New.
* sysdeps/sparc/sparc32/sparcv9/Makefile (ASFLAGS-*): If VIS3 is
available use -Av9d instead of -Av9a.
* sysdeps/sparc/sparc64/Makefile: Likewise.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/Makefile: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysign-vis3.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysign.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysignf-vis3.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/multiarch/s_copysignf.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/Makefile: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_signbit-vis3.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_signbit.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_signbitf-vis3.S: New file.
* sysdeps/sparc/sparc64/fpu/multiarch/s_signbitf.S: New file.
* sysdeps/sparc/sparc64/fpu/s_copysign.S (__copysign): Use fzeros/fnegs
to load 0x80000000 into a float register instead of using the stack.
* sysdeps/sparc/sparc64/fpu/s_copysignf.S (__copysignf): Likewise.
* sysdeps/generic/dl-osinfo.h (_dl_setup_stack_chk_guard): Fix
masking out of the most significant byte of random value used.
* sysdeps/unix/sysv/linux/dl-osinfo.h (_dl_setup_stack_chk_guard):
Fix coding style in previous change.
* sysdeps/unix/sysv/linux/kernel-features.h
(__ASSUME_CLONE_THREAD_FLAGS): Set on sparc when 2.5.64 and later.
(__ASSUME_TGKILL): Set on sparc when 2.6.1 and later, simplify
expression.
(__ASSUME_FADVISE64_64_SYSCALL): Set on sparc when 2.6.1 and
later.
* sysdeps/unix/sysv/linux/sparc/sparc64/makecontext.c
(__makecontext): Fix signedness of pointer casts setting up 'sp'.
* sysdeps/unix/sysv/linux/sparc/sysdep.h (INLINE_SYSCALL) Use 'long'
for 'resultvar' otherwise things get truncated on 64-bit.
* sysdeps/sparc/sparc32/dl-machine.h (elf_machine_rela): Protect local
variables with appropriate CPP guards.
* sysdeps/sparc/sparc32/dl-trampoline.S: Propagate the stack_ptr from the
frame pointer, not the stack pointer. Correct layout comments. Fix test
on resulting framesize and the management of the outregs buffer for pltexit.
Preserve floating point return values across _dl_call_pltexit call.
* sysdeps/sparc/sparc64/dl-trampoline.S: Fix test on resulting
framesize and the management of the outregs buffer for pltexit.
Preserve floating point return values across _dl_call_pltexit
call.
* elf/sotruss-lib.c (la_sparc32_gnu_pltenter, la_sparc64_gnu_pltenter,
la_sparc32_gnu_pltexit, la_sparc64_gnu_pltexit): New functions.
(print_exit): Fix format string for return register value.
/
* sysdeps/unix/sysv/linux/sparc/sparc64/get_clockfreq.c
(set_obp_int): New function.
(get_obp_int): New function.
(__get_clockfreq_via_dev_openprom): Likewise.
* sysdeps/unix/sysv/linux/sparc/sysdep.h (INTERNAL_SYSCALL_ERROR_P): Avoid
unused variable warnings on 'val' and use builtin_expect.
(INLINE_SYSCALL): Don't wrap INTERNAL_SYSCALL_ERROR_P with builtin_expect.
(INLINE_CLONE_SYSCALL): Likewise.
nptl/
* sysdeps/unix/sysv/linux/sparc/sem_post.c (__new_sem_post): Use
atomic_increment and remove unused local variable.
(__old_sem_post): Likewise.
Replace gettimeofday with __vdso_gettimeofday.
* sysdeps/unix/sysv/linux/x86_64/init-first.c (_libc_vdso_platform_setup):
Replace clock_gettime and getcpu with __vdso_clock_gettime and
__vdso_getcpu.
* sysdeps/unix/sysv/linux/x86_64/time.c (time_ifunc): Replace
time with __vdso_time.
* sysdeps/generic/dl-osinfo.h (_dl_setup_stack_chk_guard): Ensure
default stack guard is set in last bytes.
* sysdeps/unix/sysv/linux/dl-osinfo.h (_dl_setup_stack_chk_guard): Same.
* sysdeps/sparc/sparc32/sparcv9/fpu/s_llrint.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/s_llrintf.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/s_lrint.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/s_lrintf.S: New file.
* sysdeps/sparc/sparc64/fpu/s_llrint.S: New file.
* sysdeps/sparc/sparc64/fpu/s_llrintf.S: New file.
* sysdeps/sparc/sparc64/fpu/s_lrint.S: New file.
* sysdeps/sparc/sparc64/fpu/s_lrintf.S: New file.
* sysdeps/sparc/sparc64/fpu/s_finite.S: New file.
* sysdeps/sparc/sparc64/fpu/s_finitef.S: New file.
* sysdeps/sparc/sparc64/fpu/s_isinf.S: New file.
* sysdeps/sparc/sparc64/fpu/s_isinff.S: New file.
* sysdeps/sparc/sparc32/fpu/s_signbit.S: New file.
* sysdeps/sparc/sparc32/fpu/s_signbitf.S: New file.
* sysdeps/sparc/sparc32/fpu/s_signbitl.S: New file.
* sysdeps/sparc/sparc32/sparcv9/fpu/s_isnan.S: New file.
* sysdeps/sparc/sparc64/fpu/s_isnan.S: New file.
* sysdeps/sparc/sparc64/fpu/s_isnanf.S: New file.
* sysdeps/sparc/sparc64/fpu/s_signbit.S: New file.
* sysdeps/sparc/sparc64/fpu/s_signbitf.S: New file.
* sysdeps/sparc/sparc64/fpu/s_signbitl.S: New file.