xcode 5.1 中的 Arm64 架构 [英] Arm64 architecture in xcode 5.1

问题描述

在新的 XCode 5.1 中，arm64 已成为构建的标准架构之一.

但是，在我当前的项目中，我包含了尚不支持这种新架构的库(例如 Google AdMob) - 这些现在会导致链接器错误:

ld:找不到架构 arm64 的符号

Google AdMob 6.8.0 例如是 据说是支持 arm64 但我真的无法确认这一点，除非 cputype (16777228) cpusubtype (0) 是 arm64?(通过文件命令行工具找到)

libGoogleAdMobAds.a:具有 5 种架构的 Mach-O 通用二进制文件libGoogleAdMobAds.a(用于架构 armv7):当前 ar 存档随机库libGoogleAdMobAds.a(用于架构 armv7s):当前 ar 存档随机库libGoogleAdMobAds.a(适用于架构 i386):当前 ar 存档随机库libGoogleAdMobAds.a(适用于 x86_64 架构):当前 ar 存档随机库libGoogleAdMobAds.a(用于架构 cputype (16777228) cpusubtype (0)):当前 ar 存档随机库

有没有办法解决这个问题?

解决方案

暂时摆脱 arm64 并不难.您需要做的就是:

• 编辑您的目标的构建设置.通过打开下拉菜单更改 Architectures 的值，单击 Other... 并选择它，删除值为 的行$(ARCHS_STANDARD) 并添加两行值:armv7 和 armv7s(或 nschum 提到的 $(ARCHS_STANDARD_32_BIT))，关闭弹出窗口.

• 编辑值 Valid Architectures 并简单地删除它的 arm64 部分.p>

• 为您的工作区或项目中可能拥有的每个嵌套项目执行此操作.

注意:这不是解决方案，它只是缓解您当前问题的几个步骤，请继续关注您的依赖项目以了解它们何时与 arm64 兼容并恢复这些设置的更改尽快.

祝你好运

In the new XCode 5.1, arm64 has become among the standard architectures to build for.

However, in current projects of mine I included libraries (Google AdMob for example) that do not yet support this new architecture - these are now causing linker errors:

ld: symbol(s) not found for architecture arm64

Google AdMob 6.8.0 for example is said to be supporting arm64 but I can't really confirm this, unless cputype (16777228) cpusubtype (0) is arm64? (found through the file command-line tool)

libGoogleAdMobAds.a: Mach-O universal binary with 5 architectures
libGoogleAdMobAds.a (for architecture armv7):   current ar archive random library
libGoogleAdMobAds.a (for architecture armv7s):  current ar archive random library
libGoogleAdMobAds.a (for architecture i386):    current ar archive random library
libGoogleAdMobAds.a (for architecture x86_64):  current ar archive random library
libGoogleAdMobAds.a (for architecture cputype (16777228) cpusubtype (0)):   current ar archive random library

Is there a way to go about this?

解决方案

It's not that hard to get rid of arm64 for the time being. all you need to do is to:

• Edit your target's Build Settings. Change the value for Architectures by opening the drop down, click on Other... and select it, delete the row with value $(ARCHS_STANDARD) and add two rows with values: armv7 and armv7s (or $(ARCHS_STANDARD_32_BIT) as mentioned by nschum), close the popup.

• Edit the value Valid Architectures and simply remove the arm64 part of it.

• Do it for every nested project you might have inside your workspace or project.

Note: This is not a solution, it's just a few steps to mitigate your current problem, please keep following your dependency projects to find out when they come with arm64 compatibility and revert these settings' change ASAP.

Good luck

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