我的老师在上课时演示 gdb,命令行中有多个窗口,可以同时输入命令和查看源代码。这是什么功能?
gcc -m32 -O1 -std=gnu11 -ggdb -Wall -Werror -Wno-unused-result -Wno-unused-value -Wno-unused-variable ./pstree.c -o pstree-32 /usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/11/libgcc.a when searching for -lgcc /usr/bin/ld: cannot find -lgcc: No such file or directory /usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/11/libgcc.a when searching for -lgcc /usr/bin/ld: cannot find -lgcc: No such file or directory collect2: error: ld returned 1 exit status