blacksphere/blackmagic

Hello, i'm having a issue when trying to flash an elf file on an ARM Cortex-M4
using the Black Magic Probe and GDB. I think that the load command failed because of
the error i get after doing 'attach 1' but i don't understand why and how should
i fix it.
Here is how i do it :

➜  tuto_arm_dev gdb-multiarch --quiet ./test_program.elf
Reading symbols from ./test_program.elf...done.
(gdb) target extended-remote /dev/ttyACM0
Remote debugging using /dev/ttyACM0
(gdb) monitor tpwr enable
(gdb) monitor swdp_scan
Target voltage: 3.V
Available Targets:
No. Att Driver
 1      ARM Cortex-M
(gdb) attach 1
Attaching to program: /home/yohann/tuto_arm_dev/test_program.elf, Remote target
warning: while parsing target memory map (at line 1): Required element <memory> is missing
x00012476 in ?? ()
(gdb) load
Loading section .text, size x98 lma x0
Loading section .rodata, size x4 lma x98
Loading section .data, size x4 lma x9c
Start address x0, load size 160
Transfer rate: 31 KB/sec, 53 bytes/write.
(gdb) compare-sections
Section .text, range x0 -- x98: MIS-MATCHED!
Section .rodata, range x98 -- x9c: MIS-MATCHED!
Section .data, range x9c -- xa0: MIS-MATCHED!
warning: One or more sections of the target image do not match
the loaded file

Thanks for your help