4.在另一个shell中执行gdb-multiarch ,打上断点后即可正常调试
The program is not being run. 父进程Inferior 1(process 28)创建Inferior 2(process 32)打印b,并正常退出;再创建Inferior 3(process 33)打印c,并正常退出,之后父进程打印a,退出。 总结 第一次上手GDB调试,有助于对进程控制的理解
out (gdb) n 20 if (pid < 0){ (gdb) 23 else if (pid > 0){ (gdb) 24 printf("parent\r\n"); (gdb) p pid $6 = 5805 (gdb) n parent 25 exit(0); (gdb) [Inferior 2 (process 5803) exited normally] (gdb) The program is not being run. (gdb) i inferiors Num Description...
Run till exit from #0 _IO_puts (str=0x4006a0 "hello world") at ioputs.c:36 hello world main () at hello.cpp:4 4 return 0; Value returned is $1 = 12 (gdb) finish "finish" not meaningful in the outermost frame. (gdb) quit A debugging session is active. Inferior 1 [process 14...
GDB is not exiting. Your program does. It does exit before reaching main. This can happen for a few reasons, such as: Corrupt binary -- the kernel rejects it in execve system call for some reason and not a single instruction of the program actually runs. The dynamic linker rejects it ...
program gets various signals.info inferiors -- Print alistof inferiors being managed.info line -- Core addresses of the codefora source line.info locals -- All local variables of currentstackframeorthose matching REGEXPs.info macro -- Show the definition of MACRO,andit's source location....
"new" is not currently supported in gdb。 gdb中申明一个临时的类类型变量: set var $new = malloc(sizeof(struct Whatever)) 普通变量 set $v1 = 1 匿名空间的调试:用引号包围起来和(anonymous namespace) ,tab 自动补全 (gdb)b 'rocksdb::(anonymous namespace)::Level ...
However, the exact instruction that generates the exception can be determined if the program is being single-stepped when the exception occurs. Manually single-stepping through a program is a slow and tedious process. Therefore 'autostep' aides the user by allowing them to specify sections of ...
Generic commandforshowing things about the program being debugged. Listofinfo subcommands: info address-- Describe where symbol SYM is storedinfoall-registers-- List of all registers and their contentsinfo args-- Argument variables of current stack frameinfo auto-load-- Print current status of au...
Delete all breakpoints? (y or n) [answered Y; input not from terminal](gdb) i bNo breakpoints or watchpoints. 10.没有断点后,再试一下r命令,可以看到,执行完了程序: (gdb) rThe program being debugged has been started already.Start it from the beginning? (y or n) [answered Y; input no...