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scripts: west_commands: Print error message when jlink exe not found

Adds a check in the jlink runner to look for the jlink executables and
print a more useful error message if they are not found.

Signed-off-by: Maureen Helm <>
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MaureenHelm authored and nashif committed May 2, 2019
1 parent 5f0ee9d commit d6d1e27a97478f0bf8ed6df04c6242be66410a6e
Showing with 10 additions and 2 deletions.
  1. +10 −2 scripts/west_commands/runners/
@@ -7,6 +7,7 @@
import os
import tempfile
import sys
import shutil

from west import log
from runners.core import ZephyrBinaryRunner, RunnerCaps, \
@@ -33,7 +34,7 @@ def __init__(self, cfg, device,
self.commander = commander
self.flash_addr = flash_addr
self.erase = erase
self.gdbserver_cmd = [gdbserver]
self.gdbserver = gdbserver
self.iface = iface
self.speed = speed
self.gdb_port = gdb_port
@@ -85,8 +86,12 @@ def create(cls, cfg, args):
def print_gdbserver_message(self):
log.inf('J-Link GDB server running on port {}'.format(self.gdb_port))

def check_cmd(self, cmd):
if shutil.which(cmd) is None:
log.die('{} is not installed or cannot be found'.format(cmd))

def do_run(self, command, **kwargs):
server_cmd = (self.gdbserver_cmd +
server_cmd = ([self.gdbserver] +
['-select', 'usb', # only USB connections supported
'-port', str(self.gdb_port),
'-if', self.iface,
@@ -98,9 +103,11 @@ def do_run(self, command, **kwargs):
if command == 'flash':
elif command == 'debugserver':
if self.gdb_cmd is None:
raise ValueError('Cannot debug; gdb is missing')
if self.elf_name is None:
@@ -117,6 +124,7 @@ def do_run(self, command, **kwargs):
self.run_server_and_client(server_cmd, client_cmd)

def flash(self, **kwargs):
if self.bin_name is None:
raise ValueError('Cannot flash; bin_name is missing')

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