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Clang/LLVM/Binutils prebuilts with Full LTO, PGO and BOLT optimization.

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阿菌•未霜 Clang/LLVM Toolchain with Binutils

这是一个预构建的工具链，构建始终来自最新的LLVM和Binutils源而不是稳定版本，因此无法保证完全的稳定性。它是用Full LTO、PGO和BOLT构建的，以尽可能减少编译时间。

性能测试

测试环境

系统配置

  • CPU: Intel(R) Core(TM) i9-14900K (Pcores 5.8GHz, Ecores 4.6GHz)
  • RAM: DDR5 6400MHz x2
  • SYSTEM: Ubuntu 22.04 (VMware Workstation Pro 17.5.1)

测试对象

  • Linux Kernel 6.9.0-rc4, defconfig

Ubuntu clang

版本信息

Ubuntu clang version 14.0.0-1ubuntu1.1
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /usr/bin
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/11
Found candidate GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/12
Selected GCC installation: /usr/bin/../lib/gcc/x86_64-linux-gnu/12
Candidate multilib: .;@m64
Selected multilib: .;@m64

测试结果

$ time make -C /develop/toolchain/clang/linux -skj40 ARCH=x86_64 HOSTCFLAGS=-w KCFLAGS=-w KCPPFLAGS=-w LLVM=1 O=/develop/toolchain/clang/out defconfig all

________________________________________________________
Executed in   71.15 secs    fish           external
   usr time   27.53 mins    0.00 micros   27.53 mins
   sys time    3.11 mins  396.00 micros    3.11 mins

阿菌•未霜 clang（amd64-kernel-arm）

版本信息

阿菌•未霜 clang version 19.0.0git (https://github.com/llvm/llvm-project.git e32c4dfefcd1d54eb8f353f6fa08ef6f06d0fcc4)
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /develop/storage/nfs/toolchain/clang/amd64-kernel-arm/bin
Build config: +assertions
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/11
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/12
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/12
Candidate multilib: .;@m64
Selected multilib: .;@m64

测试结果

$ time make -C /develop/toolchain/clang/linux -skj40 ARCH=x86_64 HOSTCFLAGS=-w KCFLAGS=-w KCPPFLAGS=-w LLVM=/develop/storage/nfs/toolchain/clang/amd64-kernel-arm/bin/ O=/develop/toolchain/clang/out defconfig all

________________________________________________________
Executed in   54.38 secs    fish           external
   usr time   19.58 mins  145.00 micros   19.58 mins
   sys time    2.54 mins  289.00 micros    2.54 mins

阿菌•未霜 clang（amd64-kernel-arm_static）

版本信息

阿菌•未霜 clang version 19.0.0git (https://github.com/llvm/llvm-project.git 0e44ffe817ae0f544199be70f468975fcc3ab5c5)
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /develop/storage/nfs/toolchain/clang/amd64-kernel-arm_static/bin
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/11
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/12
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/12
Candidate multilib: .;@m64
Selected multilib: .;@m64

测试结果

time make -C /develop/toolchain/clang/linux -skj40 ARCH=x86_64 HOSTCFLAGS=-w KCFLAGS=-w KCPPFLAGS=-w LLVM=/develop/storage/nfs/toolchain/clang/amd64-kernel-arm_static/bin/ O=/develop/toolchain/clang/out defconfig all

________________________________________________________
Executed in   45.04 secs    fish           external
   usr time   15.60 mins    0.00 micros   15.60 mins
   sys time    2.31 mins  508.00 micros    2.31 mins

阿菌•未霜 clang（amd64-full-toolchain）

版本信息

阿菌•未霜 clang version 19.0.0git (https://github.com/llvm/llvm-project.git 342aa3eb23992ad742d22ef0e0d8821a9b29de3e)
Target: x86_64-pc-linux-gnu
Thread model: posix
InstalledDir: /develop/storage/nfs/toolchain/clang/amd64-full-toolchain/bin
Build config: +assertions
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/11
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/12
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/12
Candidate multilib: .;@m64
Selected multilib: .;@m64

测试结果

time make -C /develop/toolchain/clang/linux -skj40 ARCH=x86_64 HOSTCFLAGS=-w KCFLAGS=-w KCPPFLAGS=-w LLVM=/develop/storage/nfs/toolchain/clang/amd64-full-toolchain/bin/ O=/develop/toolchain/clang/out defconfig all

________________________________________________________
Executed in   55.16 secs    fish           external
   usr time   20.03 mins    0.00 millis   20.03 mins
   sys time    2.66 mins   12.25 millis    2.66 mins

分支说明

amd64-kernel-arm

  • 此分支的工具链针对AArch32、AArch64 和x86架构，运行于x86-64架构的主机，主要用于内核编译。
  • 此分支的工具链不适用于裸机开发以外的任何东西，它在构建时并未考虑到对任何libc或用户空间开发的支持。
  • 此分支的工具链使用基于glibc 2.35的Ubuntu 22.04 LTS构建，无法保证比该版本更旧的发行版的兼容性。不支持其他 libc 实现（例如 musl）。

支持的目标架构

aarch64    - AArch64 (little endian)
aarch64_32 - AArch64 (little endian ILP32)
aarch64_be - AArch64 (big endian)
arm        - ARM
arm64      - ARM64 (little endian)
arm64_32   - ARM64 (little endian ILP32)
armeb      - ARM (big endian)
thumb      - Thumb
thumbeb    - Thumb (big endian)
x86        - 32-bit X86: Pentium-Pro and above
x86-64     - 64-bit X86: EM64T and AMD64

目录结构

amd64-kernel-arm/
	aarch64-linux-gnu/
	arm-linux-gnueabi/
	bin/
	include/
	lib/
	share/
	x86_64-pc-linux-gnu/

amd64-kernel-arm_static

  • 此分支的工具链针对AArch32、AArch64 和x86架构，运行于x86-64架构的主机，主要用于内核编译。
  • 此分支的工具链不适用于裸机开发以外的任何东西，它在构建时并未考虑到对任何libc或用户空间开发的支持。
  • 此分支的工具链使用基于glibc 2.35的Ubuntu 22.04 LTS构建，二进制文件采用静态链接。

支持的目标架构

aarch64    - AArch64 (little endian)
aarch64_32 - AArch64 (little endian ILP32)
aarch64_be - AArch64 (big endian)
arm        - ARM
arm64      - ARM64 (little endian)
arm64_32   - ARM64 (little endian ILP32)
armeb      - ARM (big endian)
thumb      - Thumb
thumbeb    - Thumb (big endian)
x86        - 32-bit X86: Pentium-Pro and above
x86-64     - 64-bit X86: EM64T and AMD64

目录结构

amd64-kernel-arm/
	aarch64-linux-gnu/
	arm-linux-gnueabi/
	bin/
	include/
	lib/
	share/
	x86_64-pc-linux-gnu/

amd64-full-toolchain

  • 此分支的工具链是一个完整LLVM项目的预构建，运行于x86-64架构的主机。
  • 此分支的工具链使用基于glibc 2.35的Ubuntu 22.04 LTS构建，无法保证比该版本更旧的发行版的兼容性。不支持其他 libc 实现（例如 musl）。

支持的目标架构

aarch64    - AArch64 (little endian)
aarch64_32 - AArch64 (little endian ILP32)
aarch64_be - AArch64 (big endian)
amdgcn     - AMD GCN GPUs
arm        - ARM
arm64      - ARM64 (little endian)
arm64_32   - ARM64 (little endian ILP32)
armeb      - ARM (big endian)
avr        - Atmel AVR Microcontroller
bpf        - BPF (host endian)
bpfeb      - BPF (big endian)
bpfel      - BPF (little endian)
hexagon    - Hexagon
lanai      - Lanai
mips       - MIPS (32-bit big endian)
mips64     - MIPS (64-bit big endian)
mips64el   - MIPS (64-bit little endian)
mipsel     - MIPS (32-bit little endian)
msp430     - MSP430 [experimental]
nvptx      - NVIDIA PTX 32-bit
nvptx64    - NVIDIA PTX 64-bit
ppc32      - PowerPC 32
ppc32le    - PowerPC 32 LE
ppc64      - PowerPC 64
ppc64le    - PowerPC 64 LE
r600       - AMD GPUs HD2XXX-HD6XXX
riscv32    - 32-bit RISC-V
riscv64    - 64-bit RISC-V
sparc      - Sparc
sparcel    - Sparc LE
sparcv9    - Sparc V9
systemz    - SystemZ
thumb      - Thumb
thumbeb    - Thumb (big endian)
ve         - VE
wasm32     - WebAssembly 32-bit
wasm64     - WebAssembly 64-bit
x86        - 32-bit X86: Pentium-Pro and above
x86-64     - 64-bit X86: EM64T and AMD64
xcore      - XCore

目录结构

amd64-full-toolchain/
	aarch64-linux-gnu/
	arm-linux-gnueabi/
	bin/
	etc/
	include/
	lib/
	libexec/
	powerpc64le-linux-gnu/
	powerpc64-linux-gnu/
	powerpc-linux-gnu/
	s390x-linux-gnu/
	share/
	x86_64-pc-linux-gnu/

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Clang/LLVM/Binutils prebuilts with Full LTO, PGO and BOLT optimization.

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