50131a3d0e
For both of these, we send the .elf binary over the JTAG and it gets written directly into SRAM. The CPU boots the image from the entry point (__start). This does not provision the kernel onto device's User Flash Memory (UFM). Implementation of this is still in progress see ZEP-273. Change-Id: Iae8188a21e4a3eecfda0f4f0bb220c0607d719cb Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
70 lines
1.7 KiB
Bash
Executable File
70 lines
1.7 KiB
Bash
Executable File
#!/bin/bash
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set -e
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HEX_NAME=${O}/${KERNEL_HEX_NAME}
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ELF_NAME=${O}/${KERNEL_ELF_NAME}
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# XXX nios2-gdb-server doesn't seem to clean up after itself properly,
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# and often will report "Unable to bind (98)" when restarting a session.
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# Eventually the kernel cleans things up, but it takes a couple minutes.
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# Use a random port each time so this doesn't annoy users. Use netstat to
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# confirm that the randomly selected port isn't being used.
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GDB_TCP_PORT=
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while [ -z "$GDB_TCP_PORT" ]; do
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GDB_TCP_PORT=$(shuf -i1024-49151 -n1)
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netstat -atn | grep "127[.]0[.]0[.]1[:]$GDB_TCP_PORT" || break
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GDB_TCP_PORT=
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done
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REQUIRED_PROGRAMS="nios2-gdb-server nios2-download"
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for pgm in ${REQUIRED_PROGRAMS}; do
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type -P $pgm > /dev/null 2>&1 || { echo >&2 "$pgm not found in PATH"; exit 1; }
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done
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# XXX do_flash() and do_debug() only support cases where the .elf is sent
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# over the JTAG and the CPU directly boots from __start. CONFIG_XIP and
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# CONFIG_INCLUDE_RESET_VECTOR must be disabled.
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do_flash() {
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nios2-download --go ${ELF_NAME}
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}
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do_debug() {
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do_debugserver 1 &
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# connect to the GDB server
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${GDB} ${TUI} -ex "target remote :${GDB_TCP_PORT}" -ex "load" ${ELF_NAME}
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}
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do_debugserver() {
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# Calling with an arg will result in setsid being used, which will prevent
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# Ctrl-C in GDB from killing the server. The server automatically exits
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# when the remote GDB disconnects.
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if [ -n "$1" ]; then
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SETSID=/usr/bin/setsid
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else
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SETSID=
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fi
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echo "Nios II GDB server running on port ${GDB_TCP_PORT}"
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${SETSID} nios2-gdb-server --tcpport ${GDB_TCP_PORT} --init-cache --reset-target
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}
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CMD="$1"
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shift
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case "${CMD}" in
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flash)
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do_flash
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;;
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debugserver)
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do_debugserver
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;;
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debug)
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do_debug
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;;
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esac
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