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# Copyright (c) 2013 The Chromium OS Authors.
# Bloat-o-meter code used here Copyright 2004 Matt Mackall <>
# SPDX-License-Identifier: GPL-2.0+
import collections
import errno
from datetime import datetime, timedelta
import glob
import os
import re
import Queue
import shutil
import string
import sys
import threading
import time
import command
import gitutil
import terminal
import toolchain
Theory of Operation
Please see README for user documentation, and you should be familiar with
that before trying to make sense of this.
Buildman works by keeping the machine as busy as possible, building different
commits for different boards on multiple CPUs at once.
The source repo (self.git_dir) contains all the commits to be built. Each
thread works on a single board at a time. It checks out the first commit,
configures it for that board, then builds it. Then it checks out the next
commit and builds it (typically without re-configuring). When it runs out
of commits, it gets another job from the builder and starts again with that
Clearly the builder threads could work either way - they could check out a
commit and then built it for all boards. Using separate directories for each
commit/board pair they could leave their build product around afterwards
The intent behind building a single board for multiple commits, is to make
use of incremental builds. Since each commit is built incrementally from
the previous one, builds are faster. Reconfiguring for a different board
removes all intermediate object files.
Many threads can be working at once, but each has its own working directory.
When a thread finishes a build, it puts the output files into a result
The base directory used by buildman is normally '../<branch>', i.e.
a directory higher than the source repository and named after the branch
being built.
Within the base directory, we have one subdirectory for each commit. Within
that is one subdirectory for each board. Within that is the build output for
that commit/board combination.
Buildman also create working directories for each thread, in a .bm-work/
subdirectory in the base dir.
As an example, say we are building branch 'us-net' for boards 'sandbox' and
'seaboard', and say that us-net has two commits. We will have directories
like this:
us-net/ base directory
00/ working directory for thread 0 (contains source checkout)
build/ build output
01/ working directory for thread 1
build/ build output
u-boot/ source directory
.git/ repository
# Possible build outcomes
# Translate a commit subject into a valid filename
trans_valid_chars = string.maketrans("/: ", "---")
def Mkdir(dirname):
"""Make a directory if it doesn't already exist.
dirname: Directory to create
except OSError as err:
if err.errno == errno.EEXIST:
class BuilderJob:
"""Holds information about a job to be performed by a thread
board: Board object to build
commits: List of commit options to build.
def __init__(self):
self.board = None
self.commits = []
class ResultThread(threading.Thread):
"""This thread processes results from builder threads.
It simply passes the results on to the builder. There is only one
result thread, and this helps to serialise the build output.
def __init__(self, builder):
"""Set up a new result thread
builder: Builder which will be sent each result
self.builder = builder
def run(self):
"""Called to start up the result thread.
We collect the next result job and pass it on to the build.
while True:
result = self.builder.out_queue.get()
class BuilderThread(threading.Thread):
"""This thread builds U-Boot for a particular board.
An input queue provides each new job. We run 'make' to build U-Boot
and then pass the results on to the output queue.
builder: The builder which contains information we might need
thread_num: Our thread number (0-n-1), used to decide on a
temporary directory
def __init__(self, builder, thread_num):
"""Set up a new builder thread"""
self.builder = builder
self.thread_num = thread_num
def Make(self, commit, brd, stage, cwd, *args, **kwargs):
"""Run 'make' on a particular commit and board.
The source code will already be checked out, so the 'commit'
argument is only for information.
commit: Commit object that is being built
brd: Board object that is being built
stage: Stage of the build. Valid stages are:
distclean - can be called to clean source
config - called to configure for a board
build - the main make invocation - it does the build
args: A list of arguments to pass to 'make'
kwargs: A list of keyword arguments to pass to command.RunPipe()
CommandResult object
return self.builder.do_make(commit, brd, stage, cwd, *args,
def RunCommit(self, commit_upto, brd, work_dir, do_config, force_build):
"""Build a particular commit.
If the build is already done, and we are not forcing a build, we skip
the build and just return the previously-saved results.
commit_upto: Commit number to build (0...n-1)
brd: Board object to build
work_dir: Directory to which the source will be checked out
do_config: True to run a make <board>_config on the source
force_build: Force a build even if one was previously done
tuple containing:
- CommandResult object containing the results of the build
- boolean indicating whether 'make config' is still needed
# Create a default result - it will be overwritte by the call to
# self.Make() below, in the event that we do a build.
result = command.CommandResult()
result.return_code = 0
out_dir = os.path.join(work_dir, 'build')
# Check if the job was already completed last time
done_file = self.builder.GetDoneFile(commit_upto,
result.already_done = os.path.exists(done_file)
if result.already_done and not force_build:
# Get the return code from that build and use it
with open(done_file, 'r') as fd:
result.return_code = int(fd.readline())
err_file = self.builder.GetErrFile(commit_upto,
if os.path.exists(err_file) and os.stat(err_file).st_size:
result.stderr = 'bad'
# We are going to have to build it. First, get a toolchain
if not self.toolchain:
self.toolchain = self.builder.toolchains.Select(brd.arch)
except ValueError as err:
result.return_code = 10
result.stdout = ''
result.stderr = str(err)
# TODO( This gets swallowed, but needs
# to be reported.
if self.toolchain:
# Checkout the right commit
if commit_upto is not None:
commit = self.builder.commits[commit_upto]
if self.builder.checkout:
git_dir = os.path.join(work_dir, '.git')
gitutil.Checkout(commit.hash, git_dir, work_dir,
commit = self.builder.commit # Ick, fix this for BuildCommits()
# Set up the environment and command line
env = self.toolchain.MakeEnvironment()
args = ['O=build', '-s']
if self.builder.num_jobs is not None:
args.extend(['-j', str(self.builder.num_jobs)])
config_args = ['%s_config' %]
config_out = ''
# If we need to reconfigure, do that now
if do_config:
result = self.Make(commit, brd, 'distclean', work_dir,
'distclean', *args, env=env)
result = self.Make(commit, brd, 'config', work_dir,
*(args + config_args), env=env)
config_out = result.combined
do_config = False # No need to configure next time
if result.return_code == 0:
result = self.Make(commit, brd, 'build', work_dir, *args,
result.stdout = config_out + result.stdout
result.return_code = 1
result.stderr = 'No tool chain for %s\n' % brd.arch
result.already_done = False
result.toolchain = self.toolchain
result.brd = brd
result.commit_upto = commit_upto
result.out_dir = out_dir
return result, do_config
def _WriteResult(self, result, keep_outputs):
"""Write a built result to the output directory.
result: CommandResult object containing result to write
keep_outputs: True to store the output binaries, False
to delete them
# Fatal error
if result.return_code < 0:
# Aborted?
if result.stderr and 'No child processes' in result.stderr:
if result.already_done:
# Write the output and stderr
output_dir = self.builder._GetOutputDir(result.commit_upto)
build_dir = self.builder.GetBuildDir(result.commit_upto,
outfile = os.path.join(build_dir, 'log')
with open(outfile, 'w') as fd:
if result.stdout:
errfile = self.builder.GetErrFile(result.commit_upto,
if result.stderr:
with open(errfile, 'w') as fd:
elif os.path.exists(errfile):
if result.toolchain:
# Write the build result and toolchain information.
done_file = self.builder.GetDoneFile(result.commit_upto,
with open(done_file, 'w') as fd:
fd.write('%s' % result.return_code)
with open(os.path.join(build_dir, 'toolchain'), 'w') as fd:
print >>fd, 'gcc', result.toolchain.gcc
print >>fd, 'path', result.toolchain.path
print >>fd, 'cross', result.toolchain.cross
print >>fd, 'arch', result.toolchain.arch
fd.write('%s' % result.return_code)
with open(os.path.join(build_dir, 'toolchain'), 'w') as fd:
print >>fd, 'gcc', result.toolchain.gcc
print >>fd, 'path', result.toolchain.path
# Write out the image and function size information and an objdump
env = result.toolchain.MakeEnvironment()
lines = []
for fname in ['u-boot', 'spl/u-boot-spl']:
cmd = ['%snm' % self.toolchain.cross, '--size-sort', fname]
nm_result = command.RunPipe([cmd], capture=True,
capture_stderr=True, cwd=result.out_dir,
raise_on_error=False, env=env)
if nm_result.stdout:
nm = self.builder.GetFuncSizesFile(result.commit_upto,, fname)
with open(nm, 'w') as fd:
print >>fd, nm_result.stdout,
cmd = ['%sobjdump' % self.toolchain.cross, '-h', fname]
dump_result = command.RunPipe([cmd], capture=True,
capture_stderr=True, cwd=result.out_dir,
raise_on_error=False, env=env)
rodata_size = ''
if dump_result.stdout:
objdump = self.builder.GetObjdumpFile(result.commit_upto,, fname)
with open(objdump, 'w') as fd:
print >>fd, dump_result.stdout,
for line in dump_result.stdout.splitlines():
fields = line.split()
if len(fields) > 5 and fields[1] == '.rodata':
rodata_size = fields[2]
cmd = ['%ssize' % self.toolchain.cross, fname]
size_result = command.RunPipe([cmd], capture=True,
capture_stderr=True, cwd=result.out_dir,
raise_on_error=False, env=env)
if size_result.stdout:
lines.append(size_result.stdout.splitlines()[1] + ' ' +
# Write out the image sizes file. This is similar to the output
# of binutil's 'size' utility, but it omits the header line and
# adds an additional hex value at the end of each line for the
# rodata size
if len(lines):
sizes = self.builder.GetSizesFile(result.commit_upto,
with open(sizes, 'w') as fd:
print >>fd, '\n'.join(lines)
# Now write the actual build output
if keep_outputs:
patterns = ['u-boot', '*.bin', 'u-boot.dtb', '*.map',
'include/', 'spl/u-boot-spl',
for pattern in patterns:
file_list = glob.glob(os.path.join(result.out_dir, pattern))
for fname in file_list:
shutil.copy(fname, build_dir)
def RunJob(self, job):
"""Run a single job
A job consists of a building a list of commits for a particular board.
job: Job to build
brd = job.board
work_dir = self.builder.GetThreadDir(self.thread_num)
self.toolchain = None
if job.commits:
# Run 'make board_config' on the first commit
do_config = True
commit_upto = 0
force_build = False
for commit_upto in range(0, len(job.commits), job.step):
result, request_config = self.RunCommit(commit_upto, brd,
work_dir, do_config,
force_build or self.builder.force_build)
failed = result.return_code or result.stderr
if failed and not do_config:
# If our incremental build failed, try building again
# with a reconfig.
if self.builder.force_config_on_failure:
result, request_config = self.RunCommit(commit_upto,
brd, work_dir, True, True)
do_config = request_config
# If we built that commit, then config is done. But if we got
# an warning, reconfig next time to force it to build the same
# files that created warnings this time. Otherwise an
# incremental build may not build the same file, and we will
# think that the warning has gone away.
# We could avoid this by using -Werror everywhere...
# For errors, the problem doesn't happen, since presumably
# the build stopped and didn't generate output, so will retry
# that file next time. So we could detect warnings and deal
# with them specially here. For now, we just reconfigure if
# anything goes work.
# Of course this is substantially slower if there are build
# errors/warnings (e.g. 2-3x slower even if only 10% of builds
# have problems).
if (failed and not result.already_done and not do_config and
# If this build failed, try the next one with a
# reconfigure.
# Sometimes if the board_config.h file changes it can mess
# with dependencies, and we get:
# make: *** No rule to make target `include/',
# needed by `depend'.
do_config = True
force_build = True
force_build = False
if self.builder.force_config_on_failure:
if failed:
do_config = True
result.commit_upto = commit_upto
if result.return_code < 0:
raise ValueError('Interrupt')
# We have the build results, so output the result
self._WriteResult(result, job.keep_outputs)
# Just build the currently checked-out build
result = self.RunCommit(None, True)
result.commit_upto = self.builder.upto
def run(self):
"""Our thread's run function
This thread picks a job from the queue, runs it, and then goes to the
next job.
alive = True
while True:
job = self.builder.queue.get()
if and alive:
except Exception as err:
alive = False
print err
class Builder:
"""Class for building U-Boot for a particular commit.
Public members: (many should ->private)
active: True if the builder is active and has not been stopped
already_done: Number of builds already completed
base_dir: Base directory to use for builder
checkout: True to check out source, False to skip that step.
This is used for testing.
col: terminal.Color() object
count: Number of commits to build
do_make: Method to call to invoke Make
fail: Number of builds that failed due to error
force_build: Force building even if a build already exists
force_config_on_failure: If a commit fails for a board, disable
incremental building for the next commit we build for that
board, so that we will see all warnings/errors again.
git_dir: Git directory containing source repository
last_line_len: Length of the last line we printed (used for erasing
it with new progress information)
num_jobs: Number of jobs to run at once (passed to make as -j)
num_threads: Number of builder threads to run
out_queue: Queue of results to process
re_make_err: Compiled regular expression for ignore_lines
queue: Queue of jobs to run
threads: List of active threads
toolchains: Toolchains object to use for building
upto: Current commit number we are building (0.count-1)
warned: Number of builds that produced at least one warning
Private members:
_base_board_dict: Last-summarised Dict of boards
_base_err_lines: Last-summarised list of errors
_build_period_us: Time taken for a single build (float object).
_complete_delay: Expected delay until completion (timedelta)
_next_delay_update: Next time we plan to display a progress update
_show_unknown: Show unknown boards (those not built) in summary
_timestamps: List of timestamps for the completion of the last
last _timestamp_count builds. Each is a datetime object.
_timestamp_count: Number of timestamps to keep in our list.
_working_dir: Base working directory containing all threads
class Outcome:
"""Records a build outcome for a single make invocation
Public Members:
rc: Outcome value (OUTCOME_...)
err_lines: List of error lines or [] if none
sizes: Dictionary of image size information, keyed by filename
- Each value is itself a dictionary containing
values for 'text', 'data' and 'bss', being the integer
size in bytes of each section.
func_sizes: Dictionary keyed by filename - e.g. 'u-boot'. Each
value is itself a dictionary:
key: function name
value: Size of function in bytes
def __init__(self, rc, err_lines, sizes, func_sizes):
self.rc = rc
self.err_lines = err_lines
self.sizes = sizes
self.func_sizes = func_sizes
def __init__(self, toolchains, base_dir, git_dir, num_threads, num_jobs,
checkout=True, show_unknown=True, step=1):
"""Create a new Builder object
toolchains: Toolchains object to use for building
base_dir: Base directory to use for builder
git_dir: Git directory containing source repository
num_threads: Number of builder threads to run
num_jobs: Number of jobs to run at once (passed to make as -j)
checkout: True to check out source, False to skip that step.
This is used for testing.
show_unknown: Show unknown boards (those not built) in summary
step: 1 to process every commit, n to process every nth commit
self.toolchains = toolchains
self.base_dir = base_dir
self._working_dir = os.path.join(base_dir, '.bm-work')
self.threads = [] = True
self.do_make = self.Make
self.checkout = checkout
self.num_threads = num_threads
self.num_jobs = num_jobs
self.already_done = 0
self.force_build = False
self.git_dir = git_dir
self._show_unknown = show_unknown
self._timestamp_count = 10
self._build_period_us = None
self._complete_delay = None
self._next_delay_update =
self.force_config_on_failure = True
self._step = step
self.col = terminal.Color()
self.queue = Queue.Queue()
self.out_queue = Queue.Queue()
for i in range(self.num_threads):
t = BuilderThread(self, i)
self.last_line_len = 0
t = ResultThread(self)
ignore_lines = ['(make.*Waiting for unfinished)', '(Segmentation fault)']
self.re_make_err = re.compile('|'.join(ignore_lines))
def __del__(self):
"""Get rid of all threads created by the builder"""
for t in self.threads:
del t
def _AddTimestamp(self):
"""Add a new timestamp to the list and record the build period.
The build period is the length of time taken to perform a single
build (one board, one commit).
now =
count = len(self._timestamps)
delta = self._timestamps[-1] - self._timestamps[0]
seconds = delta.total_seconds()
# If we have enough data, estimate build period (time taken for a
# single build) and therefore completion time.
if count > 1 and self._next_delay_update < now:
self._next_delay_update = now + timedelta(seconds=2)
if seconds > 0:
self._build_period = float(seconds) / count
todo = self.count - self.upto
self._complete_delay = timedelta(microseconds=
self._build_period * todo * 1000000)
# Round it
self._complete_delay -= timedelta(
if seconds > 60:
count -= 1
def ClearLine(self, length):
"""Clear any characters on the current line
Make way for a new line of length 'length', by outputting enough
spaces to clear out the old line. Then remember the new length for
next time.
length: Length of new line, in characters
if length < self.last_line_len:
print ' ' * (self.last_line_len - length),
print '\r',
self.last_line_len = length
def SelectCommit(self, commit, checkout=True):
"""Checkout the selected commit for this build
self.commit = commit
if checkout and self.checkout:
def Make(self, commit, brd, stage, cwd, *args, **kwargs):
"""Run make
commit: Commit object that is being built
brd: Board object that is being built
stage: Stage that we are at (distclean, config, build)
cwd: Directory where make should be run
args: Arguments to pass to make
kwargs: Arguments to pass to command.RunPipe()
cmd = ['make'] + list(args)
result = command.RunPipe([cmd], capture=True, capture_stderr=True,
cwd=cwd, raise_on_error=False, **kwargs)
return result
def ProcessResult(self, result):
"""Process the result of a build, showing progress information
result: A CommandResult object
col = terminal.Color()
if result:
target =
if result.return_code < 0: = False
self.upto += 1
if result.return_code != 0: += 1
elif result.stderr:
self.warned += 1
if result.already_done:
self.already_done += 1
target = '(starting)'
# Display separate counts for ok, warned and fail
ok = self.upto - self.warned -
line = '\r' + self.col.Color(self.col.GREEN, '%5d' % ok)
line += self.col.Color(self.col.YELLOW, '%5d' % self.warned)
line += self.col.Color(self.col.RED, '%5d' %
name = ' /%-5d ' % self.count
# Add our current completion time estimate
if self._complete_delay:
name += '%s : ' % self._complete_delay
# When building all boards for a commit, we can print a commit
# progress message.
if result and result.commit_upto is None:
name += 'commit %2d/%-3d' % (self.commit_upto + 1,
name += target
print line + name,
length = 13 + len(name)
def _GetOutputDir(self, commit_upto):
"""Get the name of the output directory for a commit number
The output directory is typically .../<branch>/<commit>.
commit_upto: Commit number to use (0..self.count-1)
commit = self.commits[commit_upto]
subject = commit.subject.translate(trans_valid_chars)
commit_dir = ('%02d_of_%02d_g%s_%s' % (commit_upto + 1,
self.commit_count, commit.hash, subject[:20]))
output_dir = os.path.join(self.base_dir, commit_dir)
return output_dir
def GetBuildDir(self, commit_upto, target):
"""Get the name of the build directory for a commit number
The build directory is typically .../<branch>/<commit>/<target>.
commit_upto: Commit number to use (0..self.count-1)
target: Target name
output_dir = self._GetOutputDir(commit_upto)
return os.path.join(output_dir, target)
def GetDoneFile(self, commit_upto, target):
"""Get the name of the done file for a commit number
commit_upto: Commit number to use (0..self.count-1)
target: Target name
return os.path.join(self.GetBuildDir(commit_upto, target), 'done')
def GetSizesFile(self, commit_upto, target):
"""Get the name of the sizes file for a commit number
commit_upto: Commit number to use (0..self.count-1)
target: Target name
return os.path.join(self.GetBuildDir(commit_upto, target), 'sizes')
def GetFuncSizesFile(self, commit_upto, target, elf_fname):
"""Get the name of the funcsizes file for a commit number and ELF file
commit_upto: Commit number to use (0..self.count-1)
target: Target name
elf_fname: Filename of elf image
return os.path.join(self.GetBuildDir(commit_upto, target),
'%s.sizes' % elf_fname.replace('/', '-'))
def GetObjdumpFile(self, commit_upto, target, elf_fname):
"""Get the name of the objdump file for a commit number and ELF file
commit_upto: Commit number to use (0..self.count-1)
target: Target name
elf_fname: Filename of elf image
return os.path.join(self.GetBuildDir(commit_upto, target),
'%s.objdump' % elf_fname.replace('/', '-'))
def GetErrFile(self, commit_upto, target):
"""Get the name of the err file for a commit number
commit_upto: Commit number to use (0..self.count-1)
target: Target name
output_dir = self.GetBuildDir(commit_upto, target)
return os.path.join(output_dir, 'err')
def FilterErrors(self, lines):
"""Filter out errors in which we have no interest
We should probably use map().
lines: List of error lines, each a string
New list with only interesting lines included
out_lines = []
for line in lines:
if not
return out_lines
def ReadFuncSizes(self, fname, fd):
"""Read function sizes from the output of 'nm'
fd: File containing data to read
fname: Filename we are reading from (just for errors)
Dictionary containing size of each function in bytes, indexed by
function name.
sym = {}
for line in fd.readlines():
size, type, name = line[:-1].split()
print "Invalid line in file '%s': '%s'" % (fname, line[:-1])
if type in 'tTdDbB':
# function names begin with '.' on 64-bit powerpc
if '.' in name[1:]:
name = 'static.' + name.split('.')[0]
sym[name] = sym.get(name, 0) + int(size, 16)
return sym
def GetBuildOutcome(self, commit_upto, target, read_func_sizes):
"""Work out the outcome of a build.
commit_upto: Commit number to check (0..n-1)
target: Target board to check
read_func_sizes: True to read function size information
Outcome object
done_file = self.GetDoneFile(commit_upto, target)
sizes_file = self.GetSizesFile(commit_upto, target)
sizes = {}
func_sizes = {}
if os.path.exists(done_file):
with open(done_file, 'r') as fd:
return_code = int(fd.readline())
err_lines = []
err_file = self.GetErrFile(commit_upto, target)
if os.path.exists(err_file):
with open(err_file, 'r') as fd:
err_lines = self.FilterErrors(fd.readlines())
# Decide whether the build was ok, failed or created warnings
if return_code:
elif len(err_lines):
# Convert size information to our simple format
if os.path.exists(sizes_file):
with open(sizes_file, 'r') as fd:
for line in fd.readlines():
values = line.split()
rodata = 0
if len(values) > 6:
rodata = int(values[6], 16)
size_dict = {
'all' : int(values[0]) + int(values[1]) +
'text' : int(values[0]) - rodata,
'data' : int(values[1]),
'bss' : int(values[2]),
'rodata' : rodata,
sizes[values[5]] = size_dict
if read_func_sizes:
pattern = self.GetFuncSizesFile(commit_upto, target, '*')
for fname in glob.glob(pattern):
with open(fname, 'r') as fd:
dict_name = os.path.basename(fname).replace('.sizes',
func_sizes[dict_name] = self.ReadFuncSizes(fname, fd)
return Builder.Outcome(rc, err_lines, sizes, func_sizes)
return Builder.Outcome(OUTCOME_UNKNOWN, [], {}, {})
def GetResultSummary(self, boards_selected, commit_upto, read_func_sizes):
"""Calculate a summary of the results of building a commit.
board_selected: Dict containing boards to summarise
commit_upto: Commit number to summarize (0..self.count-1)
read_func_sizes: True to read function size information
Dict containing boards which passed building this commit.
keyed by
List containing a summary of error/warning lines
board_dict = {}
err_lines_summary = []
for board in boards_selected.itervalues():
outcome = self.GetBuildOutcome(commit_upto,,
board_dict[] = outcome
for err in outcome.err_lines:
if err and not err.rstrip() in err_lines_summary:
return board_dict, err_lines_summary
def AddOutcome(self, board_dict, arch_list, changes, char, color):
"""Add an output to our list of outcomes for each architecture
This simple function adds failing boards (changes) to the
relevant architecture string, so we can print the results out
sorted by architecture.
board_dict: Dict containing all boards
arch_list: Dict keyed by arch name. Value is a string containing
a list of board names which failed for that arch.
changes: List of boards to add to arch_list
color: terminal.Colour object
done_arch = {}
for target in changes:
if target in board_dict:
arch = board_dict[target].arch
arch = 'unknown'
str = self.col.Color(color, ' ' + target)
if not arch in done_arch:
str = self.col.Color(color, char) + ' ' + str
done_arch[arch] = True
if not arch in arch_list:
arch_list[arch] = str
arch_list[arch] += str
def ColourNum(self, num):
color = self.col.RED if num > 0 else self.col.GREEN
if num == 0:
return '0'
return self.col.Color(color, str(num))
def ResetResultSummary(self, board_selected):
"""Reset the results summary ready for use.
Set up the base board list to be all those selected, and set the
error lines to empty.
Following this, calls to PrintResultSummary() will use this
information to work out what has changed.
board_selected: Dict containing boards to summarise, keyed by
self._base_board_dict = {}
for board in board_selected:
self._base_board_dict[board] = Builder.Outcome(0, [], [], {})
self._base_err_lines = []
def PrintFuncSizeDetail(self, fname, old, new):
grow, shrink, add, remove, up, down = 0, 0, 0, 0, 0, 0
delta, common = [], {}
for a in old:
if a in new:
common[a] = 1
for name in old:
if name not in common:
remove += 1
down += old[name]
delta.append([-old[name], name])
for name in new:
if name not in common:
add += 1
up += new[name]
delta.append([new[name], name])
for name in common:
diff = new.get(name, 0) - old.get(name, 0)
if diff > 0:
grow, up = grow + 1, up + diff
elif diff < 0:
shrink, down = shrink + 1, down - diff
delta.append([diff, name])
args = [add, -remove, grow, -shrink, up, -down, up - down]
if max(args) == 0:
args = [self.ColourNum(x) for x in args]
indent = ' ' * 15
print ('%s%s: add: %s/%s, grow: %s/%s bytes: %s/%s (%s)' %
tuple([indent, self.col.Color(self.col.YELLOW, fname)] + args))
print '%s %-38s %7s %7s %+7s' % (indent, 'function', 'old', 'new',
for diff, name in delta:
if diff:
color = self.col.RED if diff > 0 else self.col.GREEN
msg = '%s %-38s %7s %7s %+7d' % (indent, name,
old.get(name, '-'), new.get(name,'-'), diff)
print self.col.Color(color, msg)
def PrintSizeDetail(self, target_list, show_bloat):
"""Show details size information for each board
target_list: List of targets, each a dict containing:
'target': Target name
'total_diff': Total difference in bytes across all areas
<part_name>: Difference for that part
show_bloat: Show detail for each function
targets_by_diff = sorted(target_list, reverse=True,
key=lambda x: x['_total_diff'])
for result in targets_by_diff:
printed_target = False
for name in sorted(result):
diff = result[name]
if name.startswith('_'):
if diff != 0:
color = self.col.RED if diff > 0 else self.col.GREEN
msg = ' %s %+d' % (name, diff)
if not printed_target:
print '%10s %-15s:' % ('', result['_target']),
printed_target = True
print self.col.Color(color, msg),
if printed_target:
if show_bloat:
target = result['_target']
outcome = result['_outcome']
base_outcome = self._base_board_dict[target]
for fname in outcome.func_sizes:
def PrintSizeSummary(self, board_selected, board_dict, show_detail,
"""Print a summary of image sizes broken down by section.
The summary takes the form of one line per architecture. The
line contains deltas for each of the sections (+ means the section
got bigger, - means smaller). The nunmbers are the average number
of bytes that a board in this section increased by.
For example:
powerpc: (622 boards) text -0.0
arm: (285 boards) text -0.0
nds32: (3 boards) text -8.0
board_selected: Dict containing boards to summarise, keyed by
board_dict: Dict containing boards for which we built this
commit, keyed by The value is an Outcome object.
show_detail: Show detail for each board
show_bloat: Show detail for each function
arch_list = {}
arch_count = {}
# Calculate changes in size for different image parts
# The previous sizes are in Board.sizes, for each board
for target in board_dict:
if target not in board_selected:
base_sizes = self._base_board_dict[target].sizes
outcome = board_dict[target]
sizes = outcome.sizes
# Loop through the list of images, creating a dict of size
# changes for each image/part. We end up with something like
# {'target' : 'snapper9g45, 'data' : 5, 'u-boot-spl:text' : -4}
# which means that U-Boot data increased by 5 bytes and SPL
# text decreased by 4.
err = {'_target' : target}
for image in sizes:
if image in base_sizes:
base_image = base_sizes[image]
# Loop through the text, data, bss parts
for part in sorted(sizes[image]):
diff = sizes[image][part] - base_image[part]
col = None
if diff:
if image == 'u-boot':
name = part
name = image + ':' + part
err[name] = diff
arch = board_selected[target].arch
if not arch in arch_count:
arch_count[arch] = 1
arch_count[arch] += 1
if not sizes:
pass # Only add to our list when we have some stats
elif not arch in arch_list:
arch_list[arch] = [err]
# We now have a list of image size changes sorted by arch
# Print out a summary of these
for arch, target_list in arch_list.iteritems():
# Get total difference for each type
totals = {}
for result in target_list:
total = 0
for name, diff in result.iteritems():
if name.startswith('_'):
total += diff
if name in totals:
totals[name] += diff
totals[name] = diff
result['_total_diff'] = total
result['_outcome'] = board_dict[result['_target']]
count = len(target_list)
printed_arch = False
for name in sorted(totals):
diff = totals[name]
if diff:
# Display the average difference in this name for this
# architecture
avg_diff = float(diff) / count
color = self.col.RED if avg_diff > 0 else self.col.GREEN
msg = ' %s %+1.1f' % (name, avg_diff)
if not printed_arch:
print '%10s: (for %d/%d boards)' % (arch, count,
printed_arch = True
print self.col.Color(color, msg),
if printed_arch:
if show_detail:
self.PrintSizeDetail(target_list, show_bloat)
def PrintResultSummary(self, board_selected, board_dict, err_lines,
show_sizes, show_detail, show_bloat):
"""Compare results with the base results and display delta.
Only boards mentioned in board_selected will be considered. This
function is intended to be called repeatedly with the results of
each commit. It therefore shows a 'diff' between what it saw in
the last call and what it sees now.
board_selected: Dict containing boards to summarise, keyed by
board_dict: Dict containing boards for which we built this
commit, keyed by The value is an Outcome object.
err_lines: A list of errors for this commit, or [] if there is
none, or we don't want to print errors
show_sizes: Show image size deltas
show_detail: Show detail for each board
show_bloat: Show detail for each function
better = [] # List of boards fixed since last commit
worse = [] # List of new broken boards since last commit
new = [] # List of boards that didn't exist last time
unknown = [] # List of boards that were not built
for target in board_dict:
if target not in board_selected:
# If the board was built last time, add its outcome to a list
if target in self._base_board_dict:
base_outcome = self._base_board_dict[target].rc
outcome = board_dict[target]
if outcome.rc == OUTCOME_UNKNOWN:
elif outcome.rc < base_outcome:
elif outcome.rc > base_outcome:
# Get a list of errors that have appeared, and disappeared
better_err = []
worse_err = []
for line in err_lines:
if line not in self._base_err_lines:
worse_err.append('+' + line)
for line in self._base_err_lines:
if line not in err_lines:
better_err.append('-' + line)
# Display results by arch
if better or worse or unknown or new or worse_err or better_err:
arch_list = {}
self.AddOutcome(board_selected, arch_list, better, '',
self.AddOutcome(board_selected, arch_list, worse, '+',
self.AddOutcome(board_selected, arch_list, new, '*', self.col.BLUE)
if self._show_unknown:
self.AddOutcome(board_selected, arch_list, unknown, '?',
for arch, target_list in arch_list.iteritems():
print '%10s: %s' % (arch, target_list)
if better_err:
print self.col.Color(self.col.GREEN, '\n'.join(better_err))
if worse_err:
print self.col.Color(self.col.RED, '\n'.join(worse_err))
if show_sizes:
self.PrintSizeSummary(board_selected, board_dict, show_detail,
# Save our updated information for the next call to this function
self._base_board_dict = board_dict
self._base_err_lines = err_lines
# Get a list of boards that did not get built, if needed
not_built = []
for board in board_selected:
if not board in board_dict:
if not_built:
print "Boards not built (%d): %s" % (len(not_built),
', '.join(not_built))
def ShowSummary(self, commits, board_selected, show_errors, show_sizes,
show_detail, show_bloat):
"""Show a build summary for U-Boot for a given board list.
Reset the result summary, then repeatedly call GetResultSummary on
each commit's results, then display the differences we see.
commit: Commit objects to summarise
board_selected: Dict containing boards to summarise
show_errors: Show errors that occured
show_sizes: Show size deltas
show_detail: Show detail for each board
show_bloat: Show detail for each function
self.commit_count = len(commits)
self.commits = commits
for commit_upto in range(0, self.commit_count, self._step):
board_dict, err_lines = self.GetResultSummary(board_selected,
commit_upto, read_func_sizes=show_bloat)
msg = '%02d: %s' % (commit_upto + 1, commits[commit_upto].subject)
print self.col.Color(self.col.BLUE, msg)
self.PrintResultSummary(board_selected, board_dict,
err_lines if show_errors else [], show_sizes, show_detail,
def SetupBuild(self, board_selected, commits):
"""Set up ready to start a build.
board_selected: Selected boards to build
commits: Selected commits to build
# First work out how many commits we will build
count = (len(commits) + self._step - 1) / self._step
self.count = len(board_selected) * count
self.upto = self.warned = = 0
self._timestamps = collections.deque()
def BuildBoardsForCommit(self, board_selected, keep_outputs):
"""Build all boards for a single commit"""
self.count = len(board_selected)
for brd in board_selected.itervalues():
job = BuilderJob()
job.board = brd
job.commits = None
job.keep_outputs = keep_outputs
def BuildCommits(self, commits, board_selected, show_errors, keep_outputs):
"""Build all boards for all commits (non-incremental)"""
self.commit_count = len(commits)
for self.commit_upto in range(self.commit_count):
self.BuildBoardsForCommit(board_selected, keep_outputs)
board_dict, err_lines = self.GetResultSummary()
self.PrintResultSummary(board_selected, board_dict,
err_lines if show_errors else [])
if self.already_done:
print '%d builds already done' % self.already_done
def GetThreadDir(self, thread_num):
"""Get the directory path to the working dir for a thread.
thread_num: Number of thread to check.
return os.path.join(self._working_dir, '%02d' % thread_num)
def _PrepareThread(self, thread_num):
"""Prepare the working directory for a thread.
This clones or fetches the repo into the thread's work directory.
thread_num: Thread number (0, 1, ...)
thread_dir = self.GetThreadDir(thread_num)
git_dir = os.path.join(thread_dir, '.git')
# Clone the repo if it doesn't already exist
# TODO(sjg@chromium): Perhaps some git hackery to symlink instead, so
# we have a private index but uses the origin repo's contents?
if self.git_dir:
src_dir = os.path.abspath(self.git_dir)
if os.path.exists(git_dir):
gitutil.Fetch(git_dir, thread_dir)
print 'Cloning repo for thread %d' % thread_num
gitutil.Clone(src_dir, thread_dir)
def _PrepareWorkingSpace(self, max_threads):
"""Prepare the working directory for use.
Set up the git repo for each thread.
max_threads: Maximum number of threads we expect to need.
for thread in range(max_threads):
def _PrepareOutputSpace(self):
"""Get the output directories ready to receive files.
We delete any output directories which look like ones we need to
create. Having left over directories is confusing when the user wants
to check the output manually.
dir_list = []
for commit_upto in range(self.commit_count):
for dirname in glob.glob(os.path.join(self.base_dir, '*')):
if dirname not in dir_list:
def BuildBoards(self, commits, board_selected, show_errors, keep_outputs):
"""Build all commits for a list of boards
commits: List of commits to be build, each a Commit object
boards_selected: Dict of selected boards, key is target name,
value is Board object
show_errors: True to show summarised error/warning info
keep_outputs: True to save build output files
self.commit_count = len(commits)
self.commits = commits
self._PrepareWorkingSpace(min(self.num_threads, len(board_selected)))
self.SetupBuild(board_selected, commits)
# Create jobs to build all commits for each board
for brd in board_selected.itervalues():
job = BuilderJob()
job.board = brd
job.commits = commits
job.keep_outputs = keep_outputs
job.step = self._step
# Wait until all jobs are started
# Wait until we have processed all output