I'm trying to use gdb to debug, I'm launching successfully and loading zephyr.elf. However, as I step through starting from reset.S the jump to "z_arm_prep_c" just asserts. The app works fine if I just flash it (.hex) fwiw.
Has anyone encountered this issue, or have suggestions at what I'm missing here?
(gdb) where +where #0 0xeffffffe in ?? () #1 0x0003b0d8 in z_arm_fault (msp=537039480, psp=<optimized out>, exc_return=<optimized out>, callee_regs=<optimized out>) at /home/kt/kt/src/embedded/ff/extern/ncs/zephyr/arch/arm/core/aarch32/cortex_m/fault.c:1029 #2 0x0003b348 in z_arm_usage_fault () at /home/kt/kt/src/embedded/ff/extern/ncs/zephyr/arch/arm/core/aarch32/cortex_m/fault_s.S:102 #3 <signal handler called> #4 assert_post_action (file=0x4 "\255$", file@entry=0x7c23c "WEST_TOPDIR/zephyr/arch/arm/core/aarch32/cortex_m/fault.c", line=line@entry=1029) at /home/kt/kt/src/embedded/ff/extern/ncs/zephyr/lib/os/assert.c:43 #5 0x0003b0d8 in z_arm_fault (msp=537039688, psp=<optimized out>, exc_return=<optimized out>, callee_regs=<optimized out>) at /home/kt/kt/src/embedded/ff/extern/ncs/zephyr/arch/arm/core/aarch32/cortex_m/fault.c:1029 #6 0x0003b348 in z_arm_usage_fault () at /home/kt/kt/src/embedded/ff/extern/ncs/zephyr/arch/arm/core/aarch32/cortex_m/fault_s.S:102 #7 <signal handler called> #8 0xaaaaaaaa in ?? ()
Flash starts up like:
I: Starting bootloader I: Primary image: magic=unset, swap_type=0x1, copy_done=0x3, image_ok=0x3 I: Secondary image: magic=unset, swap_type=0x1, copy_done=0x3, image_ok=0x3 I: Boot source: none I: Swap type: none I: Bootloader chainload address offset: 0x10000 I: Jumping to the first image slot
GDB Looks like
I: Starting bootloader I: Primary image: magic=unset, swap_type=0x1, copy_done=0x3, image_ok=0x3 I: Secondary image: magic=unset, swap_type=0x1, copy_done=0x3, image_ok=0x3 I: Boot source: none I: Swap type: none E: Image in the primary slot is not valid! E: Unable to find bootable image
