rcs

QEMU搭建ARM LINUX开发环境

不打扰是莪最后的温柔 提交于 2019-12-02 23:55:24
QEMU搭建ARM LINUX开发环境 QEMU简介: QEMU是一种纯软件实现的虚拟化模拟器,几乎可以模拟所有硬件,包括我们本次要用的ARM A9平台。它的原理是将guest架构代码转换为TCG中间代码,再转换为host架构代码。 环境: 虚拟机:ubuntu18.04 LTS 步骤: 安装gcc-arm-linux-gnueabi sudo apt install gcc-arm-linux-gnueabi 安装完成后,我们可以看一下该工具链支持的目标架构: arm-linux-gnueabi-gcc --target 翻一下结果可以看到: Known ARM CPUs (for use with the -mcpu= and -mtune= options): arm1020e arm1020t arm1022e arm1026ej-s arm10e arm10tdmi arm1136j-s arm1136jf-s arm1156t2-s arm1156t2f-s arm1176jz-s arm1176jzf-s arm2 arm250 arm3 arm6 arm60 arm600 arm610 arm620 arm7 arm70 arm700 arm700i arm710 arm7100 arm710c arm710t arm720 arm720t arm740t

What is the optimal range for number of live branches? [closed]

﹥>﹥吖頭↗ 提交于 2019-12-02 19:36:46
Let's say a project is: 1 product built over Y years comprising M modules written in L [1..3] languages developed by total of D developers At what point does a project contain too many or too few live branches? I know it is a hard question, it is even harder to answer numerically, I am however looking for quantified answers, if at all possible, please make a formula. Background If there are too few branches, code is never ready, developers don't make large changes because it may be impossible to meet next deadline. Likewise product managers never feel confident enough to name something a

Algorithm for efficient diffing of huge files

社会主义新天地 提交于 2019-12-02 17:39:37
I have to store two files A and B which are both very large (like 100GB). However B is likely to be similar in big parts to A so i could store A and diff(A, B). There are two interesting aspects to this problem: The files are too big to be analyzed by any diff library I know of because they are in-memory I don't actually need a diff - a diff typically has inserts, edits and deletes because it is meant to be read by humans. I can get away with less information: I only need "new range of bytes" and "copy bytes from old file from arbitrary offset". I am currently at a loss at how to compute the

Migrate project from RCS to git?

佐手、 提交于 2019-11-29 20:46:12
I have a 20-year-old project that I would like to migrate from RCS to git, without losing the history. All web pages suggest that the One True Path is through CVS. But after an hour of Googling and trying different scripts, I have yet to find anything that successfully converts my RCS project tree to CVS. I'm hoping the good people at Stackoverflow will know what actually works, as opposed to what is claimed to work and doesn't. (I searched Stackoverflow using both the native SO search and a Google search, but if there's a helpful answer in the database, I missed it.) UPDATE : The rcs-fast