我通过 brew install gdb 安装了gdb。
源文件内容如下：
#include <cstdio>
int main(){
int a = 10;
for(int i = 0; i< 10; i++){
a += i;
}
printf("%d\n",a);
return 0;
}
这里是名为“demo”的可执行文件：
https://pan.baidu.com/s/1wg-ffGCYzPGDI77pRxhyaw我是这样编译源文件的：
c++ -g -o demo demo.cpp
并运行gdb
gdb ./demo
但是，它无法工作。它无法识别可执行文件。
GNU gdb (GDB) 8.2
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Type "show configuration" for configuration details.
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BFD: /Users/xxx/Codes/demo: unknown load command 0x32
BFD: /Users/xxx/Codes/demo: unknown load command 0x32
"/Users/xxx/Codes/demo": not in executable format: file format not recognized
我使用file demo命令，它的输出是demo: Mach-O 64位可执行文件 x86_64
我使用file ./demo命令，它的输出是./demo: Mach-O 64位可执行文件 x86_64
输入c++ -v，输出为：
Apple LLVM version 10.0.0 (clang-1000.10.44.2)
Target: x86_64-apple-darwin18.0.0
Thread model: posix
InstalledDir: /Library/Developer/CommandLineTools/usr/bin
运行
./demo，输出为55。在gdb中输入show configuration，它会显示： This GDB was configured as follows:
configure --host=x86_64-apple-darwin18.0.0 --target=x86_64-apple-darwin18.0.0
--with-auto-load-dir=:${prefix}/share/auto-load
--with-auto-load-safe-path=:${prefix}/share/auto-load
--with-expat
--with-gdb-datadir=/usr/local/Cellar/gdb/8.2/share/gdb (relocatable)
--with-jit-reader-dir=/usr/local/Cellar/gdb/8.2/lib/gdb (relocatable)
--without-libunwind-ia64
--without-lzma
--without-babeltrace
--without-intel-pt
--disable-libmcheck
--without-mpfr
--with-python=/System/Library/Frameworks/Python.framework/Versions/2.7
--without-guile
--with-separate-debug-dir=/usr/local/Cellar/gdb/8.2/lib/debug (relocatable)
谁能帮助我？非常感谢!!!
gdb版本？你是如何获取它的？你是否从 https://sourceware.org/gdb/download/ 下载了它的源代码并编译了它？如果是，你是如何配置它的？如果不是，请在gdb中显示show configuration的输出。同样的，你的c++是什么（是 GCC，Clang，还是其他）？请显示c++ -v的输出。你能在同一个终端中运行./demo吗？file ./demo的输出是什么？ - Basile Starynkevitchdemo.cpp的源代码（或者将其变成一个微型[MCVE]）。首先尝试使用一个类似于“hello-world”的例子。 - Basile Starynkevitchlldb（它可以正常工作）。 - Xiaoyu Chen