swiftlang/swift

[SR-407] Support ELF in cmpcodesize

Open

#43,024 创建于 2015年12月29日

在 GitHub 查看
 (2 评论) (0 反应) (0 负责人)Swift (69,989 star) (10,719 fork)batch import
good first issueimprovement

描述
Previous ID SR-407
Radar None
Original Reporter @modocache
Type Improvement
Votes 0
Component/s
Labels Improvement, StarterBug
Assignee None
Priority Medium

md5: 47c497e6ac62c1fc388cf821f38e6cd3

Issue Description:

In https://github.com/apple/swift/pull/638, Nadav Rotem mentions supporting ELF as a potential feature for cmpcodesize.

cmpcodesize is a tool used by the Swift performance team to measure the size of built Swift products. It would be useful to see the size of built products on Linux (ELF) as well as on OS X (Mach-O, which cmpcodesize currently supports).

While the script currently uses otool (available on OS X), the readelf executable could be used to analyze files linked with ELF. readelf is available on Linux.

The script could detect the current platform and use the appropriate executable.

贡献者指南

技术栈
swiftshell
领域
toolingperformance
议题类型
feature
难度面向新贡献者的预计实现难度，1 表示很小改动，5 表示专家级工作。
3
预计时间有经验贡献者完成调查、实现、测试并准备 pull request 的粗略时间范围。
half day
活动状态议题当前的可参与程度：新鲜、活跃、陈旧、阻塞或等待维护者输入。
stale
清晰度议题是否清楚说明期望改动、验收标准和下一步。
clear
前置要求
Knowledge of Swift's cmpcodesize toolBasic shell scriptingUnderstanding of ELF and Mach O
新手友好度1-100 的估计分数，表示该议题对首次贡献者的友好程度。
70
研究方向
The issue references PR #638 by Nadav Rotem. The cmpcodesize tool is located in the Swift repository; the script currently uses otool on macOS. On Linux, readelf should be used instead. The solution involves detecting the platform and selecting the appropriate executable. There are no recent comments or maintainer questions.