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Age	Commit message (Collapse)	Author	Files	Lines
2018-12-03	x86: Extend CPUID support in struct cpu_features	H.J. Lu	1	-4/+260
	Extend CPUID support for all feature bits from CPUID. Add a new macro, CPU_FEATURE_USABLE, which can be used to check if a feature is usable at run-time, instead of HAS_CPU_FEATURE and HAS_ARCH_FEATURE. Add COMMON_CPUID_INDEX_D_ECX_1, COMMON_CPUID_INDEX_80000007 and COMMON_CPUID_INDEX_80000008 to check CPU feature bits in them. Tested on i686 and x86-64 as well as using build-many-glibcs.py with x86 targets. * sysdeps/x86/cacheinfo.c (intel_check_word): Updated for cpu_features_basic. (__cache_sysconf): Likewise. (init_cacheinfo): Likewise. * sysdeps/x86/cpu-features.c (get_extended_indeces): Also populate COMMON_CPUID_INDEX_80000007 and COMMON_CPUID_INDEX_80000008. (get_common_indices): Also populate COMMON_CPUID_INDEX_D_ECX_1. Use CPU_FEATURES_CPU_P (cpu_features, XSAVEC) to check if XSAVEC is available. Set the bit_arch_XXX_Usable bits. (init_cpu_features): Use _Static_assert on index_arch_Fast_Unaligned_Load. __get_cpuid_registers and __get_arch_feature. Updated for cpu_features_basic. Set stepping in cpu_features. * sysdeps/x86/cpu-features.h: (FEATURE_INDEX_1): Changed to enum. (FEATURE_INDEX_2): New. (FEATURE_INDEX_MAX): Changed to enum. (COMMON_CPUID_INDEX_D_ECX_1): New. (COMMON_CPUID_INDEX_80000007): Likewise. (COMMON_CPUID_INDEX_80000008): Likewise. (cpuid_registers): Likewise. (cpu_features_basic): Likewise. (CPU_FEATURE_USABLE): Likewise. (bit_arch_XXX_Usable): Likewise. (cpu_features): Use cpuid_registers and cpu_features_basic. (bit_arch_XXX): Reweritten. (bit_cpu_XXX): Likewise. (index_cpu_XXX): Likewise. (reg_XXX): Likewise. * sysdeps/x86/tst-get-cpu-features.c: Include <stdio.h> and <support/check.h>. (CHECK_CPU_FEATURE): New. (CHECK_CPU_FEATURE_USABLE): Likewise. (cpu_kinds): Likewise. (do_test): Print vendor, family, model and stepping. Check HAS_CPU_FEATURE and CPU_FEATURE_USABLE. (TEST_FUNCTION): Removed. Include <support/test-driver.c> instead of "../../test-skeleton.c". * sysdeps/x86_64/multiarch/sched_cpucount.c (__sched_cpucount): Check POPCNT instead of POPCOUNT. * sysdeps/x86_64/multiarch/test-multiarch.c (do_test): Likewise.
2018-01-01	Update copyright dates with scripts/update-copyrights.	Joseph Myers	1	-1/+1
	* 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.
2017-01-01	Update copyright dates with scripts/update-copyrights.	Joseph Myers	1	-1/+1

2016-01-04	Update copyright dates with scripts/update-copyrights.	Joseph Myers	1	-1/+1

2015-08-13	Add _dl_x86_cpu_features to rtld_global	H.J. Lu	1	-0/+31
	This patch adds _dl_x86_cpu_features to rtld_global in x86 ld.so and initializes it early before __libc_start_main is called so that cpu_features is always available when it is used and we can avoid calling __init_cpu_features in IFUNC selectors. * sysdeps/i386/dl-machine.h: Include <cpu-features.c>. (dl_platform_init): Call init_cpu_features. * sysdeps/i386/dl-procinfo.c (_dl_x86_cpu_features): New. * sysdeps/i386/i686/cacheinfo.c (DISABLE_PREFERRED_MEMORY_INSTRUCTION): Removed. * sysdeps/i386/i686/multiarch/Makefile (aux): Remove init-arch. * sysdeps/i386/i686/multiarch/Versions: Removed. * sysdeps/i386/i686/multiarch/ifunc-defines.sym (KIND_OFFSET): Removed. * sysdeps/i386/ldsodefs.h: Include <cpu-features.h>. * sysdeps/unix/sysv/linux/x86/Makefile (libpthread-sysdep_routines): Remove init-arch. * sysdeps/unix/sysv/linux/x86_64/dl-procinfo.c: Include <sysdeps/x86_64/dl-procinfo.c> instead of sysdeps/generic/dl-procinfo.c>. * sysdeps/x86/Makefile [$(subdir) == csu] (gen-as-const-headers): Add cpu-features-offsets.sym and rtld-global-offsets.sym. [$(subdir) == elf] (sysdep-dl-routines): Add dl-get-cpu-features. [$(subdir) == elf] (tests): Add tst-get-cpu-features. [$(subdir) == elf] (tests-static): Add tst-get-cpu-features-static. * sysdeps/x86/Versions: New file. * sysdeps/x86/cpu-features-offsets.sym: Likewise. * sysdeps/x86/cpu-features.c: Likewise. * sysdeps/x86/cpu-features.h: Likewise. * sysdeps/x86/dl-get-cpu-features.c: Likewise. * sysdeps/x86/libc-start.c: Likewise. * sysdeps/x86/rtld-global-offsets.sym: Likewise. * sysdeps/x86/tst-get-cpu-features-static.c: Likewise. * sysdeps/x86/tst-get-cpu-features.c: Likewise. * sysdeps/x86_64/dl-procinfo.c: Likewise. * sysdeps/x86_64/cacheinfo.c (__cpuid_count): Removed. Assume USE_MULTIARCH is defined and don't check it. (is_intel): Replace __cpu_features with GLRO(dl_x86_cpu_features). (is_amd): Likewise. (max_cpuid): Likewise. (intel_check_word): Likewise. (__cache_sysconf): Don't call __init_cpu_features. (__x86_preferred_memory_instruction): Removed. (init_cacheinfo): Don't call __init_cpu_features. Replace __cpu_features with GLRO(dl_x86_cpu_features). * sysdeps/x86_64/dl-machine.h: <cpu-features.c>. (dl_platform_init): Call init_cpu_features. * sysdeps/x86_64/ldsodefs.h: Include <cpu-features.h>. * sysdeps/x86_64/multiarch/Makefile (aux): Remove init-arch. * sysdeps/x86_64/multiarch/Versions: Removed. * sysdeps/x86_64/multiarch/cacheinfo.c: Likewise. * sysdeps/x86_64/multiarch/init-arch.c: Likewise. * sysdeps/x86_64/multiarch/ifunc-defines.sym (KIND_OFFSET): Removed. * sysdeps/x86_64/multiarch/init-arch.h: Rewrite.