debugging-with-gdb.md

Debugging riscv code with gdb

Running gdb server on riscv qemu

Run docker with qemu with --network host flag or just run the following script:

dev-riscv/scripts/run_qemu.sh

Start gdb server: QEMU_GDB=port path/to/executable. For example, to debug java:

QEMU_GDB=12345 /jdk-riscv/build/linux-riscv64-core-fastdebug/jdk/bin/java

Running gdb client in toolchain docker

Run docker with toolchain with --network host flag or just run the following script:

dev-riscv/scripts/run_toolchain.sh

Launch gdb client with the path to the same file as on server:

riscv64-unknown-linux-gnu-gdb /jdk-riscv/build/linux-riscv64-core-fastdebug/jdk/bin/java

Connect to gdb server (note that :12345 is the same port as server uses):

target remote :12345

Scripts for main gdb scenario

To start gdb server in qemu run the following script:

dev-riscv/scripts/gdb_server.sh

To allow use .gdbinit file in toolchain docker run the following script:

dev-riscv/scripts/patch_gdbinit.sh

To start gdb client in toolchain docker run the following script:

dev-riscv/scripts/gdb_client.sh