macOs Mojave 10.14.2上的gdb

Question

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操作系统版本：macOs Mojave 10.14.2

gdb:8.2.1（使用brew安装安装gdb)

我已成功地与

协同设计--应享权利gdb-entitlement.xml-fs gdb-cert$(which gdb）

我有这样的简单代码：

int main（int argc,char*argv[]){std：：cout<<“hello,world”<

那么广发挂吧

zhifandemacbook-pro：cpp-快速启动zhifan$g++-g main.cpp

    zhifandeMacBook-Pro:cpp-quick-start zhifan$ gdb ./a.out
    GNU gdb (GDB) 8.2.1
    Copyright (C) 2018 Free Software Foundation, Inc.
    License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
    This is free software: you are free to change and redistribute it.
    There is NO WARRANTY, to the extent permitted by law.
    Type "show copying" and "show warranty" for details.
    This GDB was configured as "x86_64-apple-darwin18.2.0".
    Type "show configuration" for configuration details.
    For bug reporting instructions, please see:
    <http://www.gnu.org/software/gdb/bugs/>.
    Find the GDB manual and other documentation resources online at:
        <http://www.gnu.org/software/gdb/documentation/>.

    For help, type "help".
    Type "apropos word" to search for commands related to "word"...
    Reading symbols from ./a.out...Reading symbols from /Users/zhifan/github/cpp-quick-start/a.out.dSYM/Contents/Resources/DWARF/a.out...done.
    done.
    (gdb) start
    Temporary breakpoint 1 at 0x100000f54: file main.cpp, line 5.
    Starting program: /Users/zhifan/github/cpp-quick-start/a.out
    [New Thread 0x1903 of process 11780]
    [New Thread 0x1a03 of process 11780]
    During startup program terminated with signal ?, Unknown signal.
    (gdb) set startup-with-shell off
    (gdb) start
    Temporary breakpoint 2 at 0x100000f54: file main.cpp, line 5.
    Starting program: /Users/zhifan/github/cpp-quick-start/a.out
    [New Thread 0x2707 of process 11806]

我的gdb一直挂在这里([进程11806的新线程0x2707])。

我无法使用8.0.1，因为出现未知load命令0x32

我还能做什么？

Answer 1

好吧，从我过去两年的MacBook Pro编程经验来看。我从未成功地使gdb正常工作。macOS使用Xcode开发人员工具进行编译。这些工具包括与gdb非常相似的lldb。

这里有一个网站，可以帮助一点做到这一点。https://lldb.llvm.org/lldb-gdb.html这是一个直接显示gdb工具和lldb工具的映射。希望这有帮助。

Answer 2

我让gdb今天在Mojave上工作：

a）获得最新的gdb源代码存档（在编写本文时，ftp://sourceware.org/pub/gdb/snapshots/current/gdb-weekly-8.2.50.20190212.tar.xz)--除其他外，它还增加了对MAC上可执行文件的识别处理。

b）build gdb。我在darwin-nat.c中发现了变量跟踪错误，所以我编辑了文件并重新构建。

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

瞧！

（来源：广发银行在MAC/Mojave上：启动时程序终止时信号？，未知信号）