Starting with GNU make 4.4, --jobserver-auth newly uses named pipe (fifo) instead of part of opened file descriptors: https://www.gnu.org/software/make/manual/html_node/POSIX-Jobserver.html Support also the new format. Signed-off-by: Martin Liska <mliska@xxxxxxx> --- scripts/jobserver-exec | 19 ++++++++++++++----- 1 file changed, 14 insertions(+), 5 deletions(-) diff --git a/scripts/jobserver-exec b/scripts/jobserver-exec index 4192855f5b8b..7eca035472d3 100755 --- a/scripts/jobserver-exec +++ b/scripts/jobserver-exec @@ -26,11 +26,20 @@ try: # If the MAKEFLAGS variable contains multiple instances of the # --jobserver-auth= option, the last one is relevant. fds = opts[-1].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) + + # Starting with GNU Make 4.4, named pipes are used for reader and writer. + # Example argument: --jobserver-auth=fifo:/tmp/GMfifo8134 + _, _, path = fds.partition('fifo:') + + if path: + reader = os.open(path, os.O_RDONLY | os.O_NONBLOCK) + writer = os.open(path, os.O_WRONLY) + else: + 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) # Read out as many jobserver slots as possible. while True: -- 2.39.0
