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802c1f1645
This patch refactor ARM memcpy ifunc selector to a C implementation.
No functional change is expected, including ifunc resolution rules.
It also adds some cleanup:
- Internal memcpy hidden definition (__GI_memcpy) is now a hidden
symbol.
- No need to create hidden definition for the ifunc variants.
Checked on armv7-linux-gnueabihf and with a build for arm-linux-gnueabi,
arm-linux-gnueabihf with and without multiarch support and with both
GCC 7.1 and GCC mainline. I also checked with the some possible
multiarch different configurations that trigger different memcpy
buids (__ARM_NEON__ && !__SOFT_FP__, !__ARM_NEON__ && !__SOFT_FP__, and
!__ARM_NEON__ && __SOFT_FP__).
* sysdeps/arm/arm-ifunc.h: New file.
* sysdeps/arm/armv7/multiarch/ifunc-memcpy.h: Likewise.
* sysdeps/arm/armv7/multiarch/memcpy.c: Likewise.
* sysdeps/arm/armv7/multiarch/memcpy_arm.S: Likewise.
* sysdeps/arm/armv7/multiarch/rtld-memcpy.S: Likewise.
* sysdeps/arm/armv7/multiarch/memcpy_neon.S [!__ARM_NEON__]
(__memcpy_neon): Avoid create hidden alias.
* sysdeps/arm/armv7/multiarch/memcpy_vfp.S [!__ARM_NEON_]
(__memcpy_vfp): Likewise.
* sysdeps/arm/armv7/multiarch/Makefile [$(subdir) = string]
(sysdep_routines): Add memcpy_arm.
* sysdeps/arm/armv7/multiarch/memcpy.S: Remove file.
Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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|---|---|---|
| .. | ||
| armv6 | ||
| armv6t2 | ||
| armv7 | ||
| bits | ||
| include/bits | ||
| nptl | ||
| sys | ||
| __longjmp.S | ||
| abi-note.S | ||
| add_n.S | ||
| addmul_1.S | ||
| aeabi_assert.c | ||
| aeabi_atexit.c | ||
| aeabi_errno_addr.c | ||
| aeabi_lcsts.c | ||
| aeabi_localeconv.c | ||
| aeabi_math.c | ||
| aeabi_mb_cur_max.c | ||
| aeabi_memclr.c | ||
| aeabi_memcpy.c | ||
| aeabi_memmove.c | ||
| aeabi_memset.c | ||
| aeabi_sighandlers.S | ||
| aeabi_unwind_cpp_pr1.c | ||
| arm-features.h | ||
| arm-ifunc.h | ||
| arm-mcount.S | ||
| arm-unwind-resume.S | ||
| atomic-machine.h | ||
| backtrace.c | ||
| bsd-_setjmp.S | ||
| bsd-setjmp.S | ||
| configure | ||
| configure.ac | ||
| crti.S | ||
| crtn.S | ||
| dl-irel.h | ||
| dl-lookupcfg.h | ||
| dl-machine.h | ||
| dl-sysdep.h | ||
| dl-tls.h | ||
| dl-tlsdesc.h | ||
| dl-tlsdesc.S | ||
| dl-trampoline.S | ||
| e_sqrt.c | ||
| e_sqrtf.c | ||
| fclrexcpt.c | ||
| fedisblxcpt.c | ||
| feenablxcpt.c | ||
| fegetenv.c | ||
| fegetexcept.c | ||
| fegetmode.c | ||
| fegetround.c | ||
| feholdexcpt.c | ||
| fenv_private.h | ||
| fesetenv.c | ||
| fesetexcept.c | ||
| fesetmode.c | ||
| fesetround.c | ||
| feupdateenv.c | ||
| fgetexcptflg.c | ||
| find_exidx.c | ||
| fix-fp-int-convert-overflow.h | ||
| fpu_control.h | ||
| fraiseexcpt.c | ||
| frame.h | ||
| framestate.c | ||
| fsetexcptflg.c | ||
| ftestexcept.c | ||
| gcc-compat.h | ||
| gccframe.h | ||
| get-rounding-mode.h | ||
| gmp-mparam.h | ||
| Implies | ||
| jmpbuf-unwind.h | ||
| ldsodefs.h | ||
| libc-aeabi_read_tp.S | ||
| libc-tls.c | ||
| libm-test-ulps | ||
| libm-test-ulps-name | ||
| linkmap.h | ||
| machine-gmon.h | ||
| Makefile | ||
| math_private.h | ||
| math-tests.h | ||
| memcpy.S | ||
| memmove.S | ||
| memset.S | ||
| memusage.h | ||
| nptl-aeabi_unwind_cpp_pr1.c | ||
| preconfigure | ||
| preconfigure.ac | ||
| pt-arm-unwind-resume.S | ||
| rt-aeabi_unwind_cpp_pr1.c | ||
| rt-arm-unwind-resume.S | ||
| rtld-global-offsets.sym | ||
| s_fma.c | ||
| s_fmaf.c | ||
| setfpucw.c | ||
| setjmp.S | ||
| sfp-machine.h | ||
| sotruss-lib.c | ||
| stackinfo.h | ||
| start.S | ||
| static-stubs.c | ||
| strlen.S | ||
| sub_n.S | ||
| submul_1.S | ||
| sysdep.h | ||
| test-fpucw.c | ||
| tls-macros.h | ||
| tlsdesc.c | ||
| tlsdesc.sym | ||
| tst-armtlsdescextlazy.c | ||
| tst-armtlsdescextlazymod.c | ||
| tst-armtlsdescextnow.c | ||
| tst-armtlsdescextnowmod.c | ||
| tst-armtlsdescloc.c | ||
| tst-armtlsdesclocmod.c | ||
| tst-audit.h | ||
| unwind-dw2-fde-glibc.c | ||
| unwind-pe.c | ||
| unwind-resume.h | ||
| unwind.h | ||
| Versions | ||