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| -rw-r--r-- | docs/platform/qemu_virt.md | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/docs/platform/qemu_virt.md b/docs/platform/qemu_virt.md index 2777148..0783be4 100644 --- a/docs/platform/qemu_virt.md +++ b/docs/platform/qemu_virt.md @@ -147,3 +147,27 @@ qemu-system-riscv32 -M virt -m 256M -nographic \ -device virtio-blk-device,drive=hd0 \ -append "root=/dev/vda rw console=ttyS0" ``` + +Debugging with GDB +------------------ + +In a first console start OpenSBI with QEMU: + +``` +qemu-system-riscv64 -M virt -m 256M -nographic \ + -bios build/platform/generic/firmware/fw_payload.bin \ + -gdb tcp::1234 \ + -S + +``` + +Parameter *-gdb tcp::1234* specifies 1234 as the debug port. +Parameter *-S* lets QEMU wait at the first instruction. + +In a second console start GDB: + +``` +gdb build/platform/generic/firmware/fw_payload.elf \ + -ex 'target remote localhost:1234' + +``` |