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[tools + tests] Adding parallelized build option for iar and uvision exporters #3092

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Merged
merged 1 commit into from
Oct 24, 2016
Merged

[tools + tests] Adding parallelized build option for iar and uvision exporters #3092

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14 changes: 13 additions & 1 deletion tools/export/iar/__init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -10,6 +10,7 @@
from tools.export.exporters import Exporter, FailedBuildException
import json
from tools.export.cmsis import DeviceCMSIS
from multiprocessing import cpu_count

class IAR(Exporter):
NAME = 'iar'
Expand Down Expand Up @@ -101,7 +102,7 @@ def generate(self):
flags['c_flags'].remove('--vla')
if '--no_static_destruction' in flags['c_flags']:
flags['c_flags'].remove('--no_static_destruction')
#Optimizations
#Optimizations
if '-Oh' in flags['c_flags']:
flags['c_flags'].remove('-Oh')
ctx = {
Expand Down Expand Up @@ -135,6 +136,17 @@ def build(self):
raise Exception("IarBuild.exe not found. Add to path.")

cmd = [iar_exe, proj_file, '-build', self.project_name]

# IAR does not support a '0' option to automatically use all
# available CPUs, so we use Python's multiprocessing library
# to detect the number of CPUs available
cpus_available = cpu_count()
jobs = cpus_available if cpus_available else None

# Only add the parallel flag if we're using more than one CPU
if jobs:
cmd += ['-parallel', str(jobs)]

p = Popen(cmd, stdout=PIPE, stderr=PIPE)
num_errors = 0
#Parse the output for printing and errors
Expand Down