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-rwxr-xr-xscripts/jobserver-count59
1 files changed, 0 insertions, 59 deletions
diff --git a/scripts/jobserver-count b/scripts/jobserver-count
deleted file mode 100755
index 7807bfa7dafa..000000000000
--- a/scripts/jobserver-count
+++ /dev/null
@@ -1,59 +0,0 @@
-#!/usr/bin/env python
-# SPDX-License-Identifier: GPL-2.0+
-#
-# This determines how many parallel tasks "make" is expecting, as it is
-# not exposed via an special variables.
-# https://www.gnu.org/software/make/manual/html_node/POSIX-Jobserver.html#POSIX-Jobserver
-from __future__ import print_function
-import os, sys, fcntl, errno
-
-# Default parallelism is "1" unless overridden on the command-line.
-default="1"
-if len(sys.argv) > 1:
- default=sys.argv[1]
-
-# Extract and prepare jobserver file descriptors from envirnoment.
-try:
- # Fetch the make environment options.
- flags = os.environ['MAKEFLAGS']
-
- # Look for "--jobserver=R,W"
- # Note that GNU Make has used --jobserver-fds and --jobserver-auth
- # so this handles all of them.
- opts = [x for x in flags.split(" ") if x.startswith("--jobserver")]
-
- # Parse out R,W file descriptor numbers and set them nonblocking.
- fds = opts[0].split("=", 1)[1]
- reader, writer = [int(x) for x in fds.split(",", 1)]
- # Open a private copy of reader to avoid setting nonblocking
- # on an unexpecting process with the same reader fd.
- reader = os.open("/proc/self/fd/%d" % (reader),
- os.O_RDONLY | os.O_NONBLOCK)
-except (KeyError, IndexError, ValueError, IOError, OSError) as e:
- print(e, file=sys.stderr)
- # Any missing environment strings or bad fds should result in just
- # using the default specified parallelism.
- print(default)
- sys.exit(0)
-
-# Read out as many jobserver slots as possible.
-jobs = b""
-while True:
- try:
- slot = os.read(reader, 1)
- jobs += slot
- except (OSError, IOError) as e:
- if e.errno == errno.EWOULDBLOCK:
- # Stop when reach the end of the jobserver queue.
- break
- raise e
-# Return all the reserved slots.
-os.write(writer, jobs)
-
-# If the jobserver was (impossibly) full or communication failed, use default.
-if len(jobs) < 1:
- print(default)
- sys.exit(0)
-
-# Report available slots (with a bump for our caller's reserveration).
-print(len(jobs) + 1)