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add basic |mach rr-{record,replay}| commands

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These are very basic commands for invoking Servo underneath rr.  rr
currently doesn't support all the syscalls that Servo requires, but
that's easy to fix on the rr side.

Fixes #4177.
This commit is contained in:
Nathan Froyd 2014-12-02 04:21:53 -05:00 • committed by Josh Matthews
parent 287f390c4a
commit 894e58f714
1 changed files with 42 additions and 4 deletions
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46
python/servo/post_build_commands.py
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@ -30,6 +30,13 @@ def read_file(filename, if_exists=False):
@CommandProvider
class MachCommands(CommandBase):
def get_binary_path(self, release):
base_path = path.join("components", "servo", "target")
if release:
return path.join(base_path, "release", "servo")
return path.join(base_path, "servo")
@Command('run',
description='Run Servo',
category='post-build')
@ -49,10 +56,7 @@ class MachCommands(CommandBase):
env = self.build_env()
env["RUST_BACKTRACE"] = "1"
if release:
args = [path.join("components", "servo", "target", "release", "servo")]
else:
args = [path.join("components", "servo", "target", "servo")]
args = self.get_binary_path(release)
# Borrowed and modified from:
# http://hg.mozilla.org/mozilla-central/file/c9cfa9b91dea/python/mozbuild/mozbuild/mach_commands.py#l883
@ -84,6 +88,40 @@ class MachCommands(CommandBase):
else:
raise e
@Command('rr-record',
description='Run Servo whilst recording execution with rr',
category='post-build')
@CommandArgument('--release', '-r', action='store_true',
help='Running release builds')
@CommandArgument(
'params', nargs='...',
help="Command-line arguments to be passed through to Servo")
def rr_record(self, release=False, params=[]):
env = self.build_env()
env["RUST_BACKTRACE"] = "1"
servo_cmd = [self.get_binary_path(release)] + params
rr_cmd = ['rr', '--fatal-errors', 'record']
try:
subprocess.check_call(rr_cmd + servo_cmd)
except OSError as e:
if e.errno == 2:
print("rr binary can't be found!")
else:
raise e
@Command('rr-replay',
description='Replay the most recent execution of Servo that was recorded with rr',
category='post-build')
def rr_replay(self):
try:
subprocess.check_call(['rr', '--fatal-errors', 'replay'])
except OSError as e:
if e.errno == 2:
print("rr binary can't be found!")
else:
raise e
@Command('doc',
description='Generate documentation',
category='post-build')