Sunday December 22, 2024 16:48:17 UTC

GCC 4.9+ - Kernel Patch

The original patch listed on this page was built for the purpose of being able to compile the Linux kernel with optimizations for more recent AMD and Intel CPU microarchitectures as supported by newer GCC compiler versions. ------- Graysky has been keeping the patch updated with the new kernel versions up to kernel 4.9 and GCC versions 4.9+. I would like to say thanks for keeping this updated. https://github.com/graysky2/kernel_gcc_patch ------- GCC has changes with the naming conventions for the Intel -march flags to use the processor code names. For example, Nehalem instead of corei7. I used the old naming convention for now for backwards compatibility with older compiler versions. CPU Family GCC option AMD Barcelona -march=barcelona AMD Bobcat -march=btver1 AMD Jaguar -march=btver2 AMD Bulldozer -march=bdver1 AMD Piledriver -march=bdver2 AMD Steamroller -march=bdver3 AMD Excavator -march=bdver4 AMD Zen -march=znver1 Intel 1st Gen Core - Nehalem -march=corei7, ALT -march=nehalem Intel 1st Gen Core - Westmere -march=westmere Intel 2nd Gen Core - Sandy Bridge -march=corei7-avx, ALT -march=sandybridge Intel 3rd Gen Core - Ivy Bridge -march=core-avx-i, ALT -march=ivybridge Intel 4th Gen Core - Haswell -march=core-avx2, ALT -march=haswell Intel 5th Gen Core - Broadwell -march=broadwell Intel 6th Gen Core - Skylake -march=skylake Intel Core Skylake with AVX-512 -march=skylake-avx512 Intel Core Broadwell -march=broadwell Intel Atom Bonnell -march=bonnell Intel Atom Silvermont -march=silvermont Older patches: Kernel 3.14 GCC 4.9 Patch GCC Change History: GCC x86 Options GCC 6 Changes GCC 5 Changes GCC 4.9 Changes GCC 4.8 Changes GCC 4.7 Changes GCC 4.6 Changes

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