GDB Remote Qemu-arm Debugging

Compile C as an executable file for arm instructions

/usr/bin/arm-linux-gnueabi-g++ Hello.cpp

Cat Hello.cpp #include <stdio.h>void crash () {     char *a=0;    *a=0;} int main () {        printf ("Hello world\n");        Crash ();        printf ("After crash\n"); }

Run an error directly, because host is a Linux x86

$./a.out
-bash:./a.out:cannot Execute binary file

Need to run with qemu-arm, the result is expected

Qemu-arm-l/usr/arm-linux-gnueabi/a.out

Hello World

Qemu:uncaught Target signal (segmentation fault)-core dumped
Segmentation fault (core dumped)

Remote debugging (the key is to increase the-G parameter, specify a port of 1235)

qemu-arm-g 1235 -l/usr/arm-linux-gnueabi/a.out

GDB executing with linux-x86 does not print symbol

(GDB) Target remote:1235remote debugging using:1235 (GDB) Ccontinuing.program received signal SIGSEGV, segmentation fault .0x00000000 in?? () (GDB) bt#0  0x00000000 in?? () Cannot access memory at address 0x0 (GDB) File/home/payne/hello/a.outa program is being debugged already. Is you sure the file of want to? (Y or N) yreading symbols from/home/payne/hello/a.out ... (No debugging symbols found) ... done. (GDB) bt#0  

You suspect that you want to use arm GDB

See http://mazhijing.blog.51cto.com/215535/40759, compiled arm gdb, post-execution to crash ()

Qemu-arm-l  /usr/arm-linux-gnueabi/  /gdb (gdb) target remote:1235remote debugging Using:1235warning:can not P Arse XML target description; XML support is disabled at compile time0x40801c40 in?? (GDB) File/home/payne/hello/a.outa program is being debugged already. Is you sure the file of want to? (Y or N) yreading symbols from/home/payne/hello/a.out ... (No debugging symbols found) ... done. (GDB) Ccontinuing.program received signal SIGSEGV, segmentation fault.0x0000841e in Crash () () (GDB)   

Conclusion:

Does arm's gdbserver have to be used by arm's GDB?