macOS Mojave 上的 GDB 错误 [英] GDB errors on macOS Mojave

问题描述

环境:Mac/Mojave 和 GDB 8.2.1(通过自制软件).

Environment: Mac/Mojave and GDB 8.2.1 (via homebrew).

我按照说明工作 https://forward-in-code.blogspot.com/2018/11/mojave-vs-gdb.html 即:

I worked through instructions https://forward-in-code.blogspot.com/2018/11/mojave-vs-gdb.html i.e.:

• 通过brew的最新GDB，解决了可执行格式问题

• latest GDB via brew, which solves the executable format issue

用新的权利签署 GDB

sign GDB with new entitlements

此外，我还修改了 SIP 以允许调试(在 Recovery OS 终端中:csrutil enable --without debug).

Additionally, I've also modified SIP to allow debugging (in Recovery OS terminal: csrutil enable --without debug).

但是，我仍然无法让 gdb 工作:

However, I still can’t get gdb to work:

(gdb) file main
Reading symbols from main...done.
(gdb) run
Starting program: /Users/joubertold/code/Rhodus/obj/debug/main 
[New Thread 0x1a03 of process 5082]
[New Thread 0x2803 of process 5082]
During startup program terminated with signal ?, Unknown signal.
(gdb) 

有趣的是，lldb 在同一个二进制文件上为我工作:

Interestingly, lldb works for me on the same binary:

(lldb) file main
Current executable set to 'main' (x86_64).
(lldb) run
Process 5086 launched: '/Users/joubertold/code/Rhodus/obj/debug/main' (x86_64)
Rhodus
 1 is ONE
 1 is between 1 and 10
 1 is between 1 and 10
 1 is between 1 and 10
 1 is between 1 and 10
 1 is between 1 and 10
 1 is between 1 and 10
 1 is between 1 and 10
 1 is between 1 and 10
 1 is beyond
 1 is beyond
 1 is beyond
Process 5086 exited with status = 0 (0x00000000) 
(lldb) 

有什么想法吗?

推荐答案

我让 gdb 在 Mojave 上工作:

I got gdb working on Mojave by:

a) 获取最新的 gdb 源存档(在撰写本文时，ftp://sourceware.org/pub/gdb/snapshots/current/gdb-weekly-8.2.50.20190212.tar.xz) - 除其他外，它增加了识别可执行文件的处理在 Mac 上.

a) getting the latest gdb source archive (at time of writing, ftp://sourceware.org/pub/gdb/snapshots/current/gdb-weekly-8.2.50.20190212.tar.xz) - amongst other things, it adds handling for recognizing executables on Mac.

b) 构建 gdb.我在 darwin-nat.c 中遇到变量阴影错误，所以我编辑了文件并重建(diff https:///gist.github.com/joubertnel/267ca0fff4eaad494cc19ec3ba7953ed).

b) build gdb. I got errors for variable shadowing in darwin-nat.c so I edited the file and rebuilt (diff https://gist.github.com/joubertnel/267ca0fff4eaad494cc19ec3ba7953ed).

c) 遵循 https://中的步骤forward-in-code.blogspot.com/2018/11/mojave-vs-gdb.html

瞧.

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