Go toolchain internals and implementation based on arm64 Wei Xiao (肖玮) Arm Staff Software Engineer Wei.Xiao@arm.com ’ alt=‘OCR图片’/> Go toolchain overview A toolchain is a package composed of the compiler infrastructure. ’ alt=‘OCR图片’/> Go toolchain example $go build -x helloworld.go /golang/pkg/tool/linux_arm64/compile -o $WORK/b001/pkg.a -trimpath $WORK/b001 -p main -complete -buildid Lz0Z4IaaV-BMteKblcuy $WORK/b001/importcfg -pack -c=4 ./helloworld.go /golang/pkg/tool/linux_arm64/buildid -w $WORK/b001/pkg.a # internal /golang/pkg/tool/linux_arm64/link -o $WORK/b001/exe/a.out -importcfg $WORK/b001/importcfg.link

Manual for Arm-based Computers Version 1.0, January 2023 www.moxa.com/products © 2023 Moxa Inc. All rights reserved. MOXA $ ^{®} $ # Moxa Industrial Linux 3.0 (Debian 11) Manual for Arm-based Computers 6 Eligible Computing Platforms ..... 7 2. Getting Started ..... 8 Connecting to the Arm-based Computer ..... 8 Connecting through the Serial Console ..... 8 Connecting via the .... 20 Login Policy ..... 23 Clearing the TPM Module ..... 24 Localizing Your Arm-based Computer ..... 24 Adjusting the Time ..... 24 NTP Time Synchronization ..... 25

[Image](/uploads/documents/4/f/5/8/4f5831fc6a31121411d9dc2cb0142e51/p1_1.jpg) ## Bringing together the Arm ecosystem  ## Linaro best-in-class Deep Learning performance by leveraging Neural Network acceleration in IP and SoCs from the Arm ecosystem, through collaborative seamless integration with the ecosystem of AI/ML software frameworks and libraries  ## Arm NN open source project • Linaro-hosted https://www.mlplatform.org/ • Git and review servers • Forums

https://gitee.com/tinylab/riscv-lab ## • ARM Lab – Learning embedded ARM software development, merged in Linux Lab Disk for ARM – https://gitee.com/tinylab/arm-lab ### 1.3 Demonstration #### 1.3.1 Free components have been prebuilt| |Rootfs|Support include initrd, harddisk, mmc and nfs, Debian availab for ARM| |Docker|Cross toolchains from gcc-4.3 available in one command, external ones configurable| |Access|Accessible make list [ aarch64/raspi3 ]: ARCH = arm64 CPU ?= cortex-a53 LIUNX ?= v5.1 ROOTDEV_LIST := /dev/mmcblk0 /dev/ram0 ROOTDEV ?= /dev/mmcblk0 [ aarch64/virt ]: ARCH = arm64 CPU ?= cortex-a57 LIUNX ?= v5.1 ROOTDEV_LIST

– https://gitee.com/tinylab/riscv-lab ## • ARM Lab – Learning embedded ARM software development, merged in Linux Lab Disk – https://gitee.com/tinylab/arm-lab ### 1.3 Demonstration #### 1.3.1 Free Video components have been rebuilt| |Rootfs|Support includes initrd, harddisk, MMC and NFS, Debian available for ARM| |Docker|Cross-toolchains from GCC-4.3 available in one command, external ones configurable| |Access|Accessible make list [ aarch64/raspi3 ]: ARCH = arm64 CPU ?= cortex-a53 LIUNX ?= v5.1 ROOTDEV_LIST := /dev/mmcblk0 /dev/ram0 ROOTDEV ?= /dev/mmcblk0 [ aarch64/virt ]: ARCH = arm64 CPU ?= cortex-a57 LIUNX ?= v5.1 ROOTDEV_LIST

绝赞招聘中 ## 平头哥 ## TVM CAFFE 前端 2019·11·16 ## TVM 在平头哥 • 工具链产品 平头哥芯片平台发布的配套软件中， TVM 是工具链产品的重要组成部分： 负责将预训练好的 caffe 或者 tensorflow 的模型，转换到 LLVM IR，最后生成可以在无剑 SoC 平台上 执行的二进制。 平头哥集成开发环境 统一应用开发框架 一键 无剑SoC平台 LLVM 自定义 AI加速器 异构 联合调试 ## 为何添加 caffe 前端？ ## 客户需求 评估阶段：客户用于评估芯片的网络，caffe 模型占很大比重。 ## - 竞品已支持 caffe 前端 当前各大芯片厂商的部署工具大多数都支持，支持 caffe 前端有利于提高竞争力。 ## - 开源社区 存量的开源 caffe 网络模型众多，TVM 直接支持 caffe

## Announcing In Visual Studio 2022 version 17.4, ## Native ARM64 Toolchain • Develop for ARM64 on ARM64 with no emulation • Includes ARM64 versions of Ninja and CMake - Available with the C++ Desktop https://aka.ms/ARM64-native for more details ## Announcing In Visual Studio 2022 version 17.7, ## New MSVC Backend Optimizations • Host of new backend improvements • Both machine-independent and ARM64-specific ARM64-specific • ARM64 improvements cover both scalar and vector (NEON) instructions void absolute_difference( int * __restrict a, int * __restrict b, int * __restrict c, int n) { for (int i = 0; i < n; i++)

CPU(中央处理器) 架构是芯片产业链和芯片生态的龙头。CPU 架构不仅决定了 CPU 芯片本身的性能，而且在很大程度上引领了整个芯片产业和产业生态，尤其是对设计人才培养、设计工具（EDA）、芯片 IP（Intellectual Property）库、芯片应用生态等方面有重大影响。此外，芯片的架构也影响到芯片的生产、测试、封装等环节。近年来包含微处理器的 SoC（系统级芯片）产品在芯片产品中的比重已达到 70% 70% 以上，这表明芯片应用与 CPU 架构之间的关联性正在增强。历史上，在 PC 和互联网时期，x86 架构芯片占据优势，而在移动互联网时期，ARM 架构芯片占据优势，今后，在智能互联时期，CPU 架构格局也会随之发生变化。 近年来，国际上一种新兴的开源精简指令集架构 CPU（RISC-V），为全球芯片产业创新发展提供了新的机遇。RISC-V 架构由美国加州大学伯克利分校计算机科学部门于 2010 年发布，它们创造了一种通用的计算机芯片指令集，以此来降低进入芯片行业的门槛。RISC-V 采取开源模式，这套指令集将被所有芯片制造商所使用，而不属于任何公司。用户可自由免费地使用该架构进行 CPU 设计、开发并添加自有指令集进行拓展，自主选择是否公开发行、商业销售、更换其他许可协议，或完全闭源使用。 现在，国际上围绕 RISC-V 的学术交流、产品发布、应用示范、生态建设等活动越来越兴旺，RISC-V 已成为当前芯片业界的“新宠”。正如该架构的领军人物