mirror of
https://github.com/eclipse-cdt/cdt
synced 2025-04-22 06:02:11 +02:00
66f3c6b08d
The impementation in GCC allows a value up to 253402300799 that corresponds to "Dec 31 9999 23:59:59 UTC". Apparently, this is due to some limit of __DATE__ and __TIME__ within the preprocessor. Regardless, as the reporter claims to have problem with values outside the range of a 32bit unsigned integer, lets use "(1 << 32) - 1" as a limit. Contributed by STMicroelectronics Change-Id: Ifa7995cd9edb460d4ad6544b5231eef88d7e39a0 Signed-off-by: Torbjörn Svensson <torbjorn.svensson@st.com>
72 lines
2 KiB
Python
Executable file
72 lines
2 KiB
Python
Executable file
#!/usr/bin/env python3
|
|
###############################################################################
|
|
# Copyright (c) 2020 Torbjörn Svensson
|
|
#
|
|
# This program and the accompanying materials
|
|
# are made available under the terms of the Eclipse Public License 2.0
|
|
# which accompanies this distribution, and is available at
|
|
# https://www.eclipse.org/legal/epl-2.0/
|
|
#
|
|
# SPDX-License-Identifier: EPL-2.0
|
|
###############################################################################
|
|
|
|
import sys
|
|
import os
|
|
import hashlib
|
|
import subprocess
|
|
|
|
UINT32_MAX = (1 << 32) - 1
|
|
DEBUG = True
|
|
|
|
def usage(msg=None):
|
|
if msg:
|
|
print(msg)
|
|
print("Usage: {0} <gcc/g++ command>".format(sys.argv[0]))
|
|
sys.exit(1)
|
|
|
|
def debug(s):
|
|
if DEBUG:
|
|
print("{} {}".format(sys.argv[0], s))
|
|
|
|
compiler_command = sys.argv[1:]
|
|
if len(compiler_command) == 0:
|
|
usage()
|
|
|
|
|
|
|
|
# Hash all the source files and traverse any directories recursively
|
|
sha1 = hashlib.sha1()
|
|
|
|
|
|
# Hash the build command too
|
|
sha1.update(" ".join(compiler_command).encode())
|
|
debug("Compiler command hashed: {}".format(sha1.hexdigest()))
|
|
|
|
|
|
preprocess_command = [*compiler_command, "-E"]
|
|
|
|
# Remove any output file (needs to write to stdout)
|
|
try:
|
|
index = compiler_command.index("-o")
|
|
del preprocess_command[index:index+2]
|
|
except ValueError:
|
|
usage("Missing output compiler flag")
|
|
|
|
# Preprocess the source file(s)
|
|
debug("Preprocess cmd: {}".format(preprocess_command))
|
|
try:
|
|
data = subprocess.check_output(preprocess_command)
|
|
except subprocess.CalledProcessError as e:
|
|
print("Failed to hash source code, exit code {}".format(e.returncode))
|
|
sys.exit(e.returncode)
|
|
|
|
# Hash the content
|
|
sha1.update(data)
|
|
debug("Content hashed: {}".format(sha1.hexdigest()))
|
|
|
|
# Set the SOURCE_DATE_EPOCH environment variable to the hash value
|
|
os.environ["SOURCE_DATE_EPOCH"] = str(int(sha1.hexdigest(), base=16) % UINT32_MAX)
|
|
debug("SOURCE_DATE_EPOCH: {}".format(os.environ["SOURCE_DATE_EPOCH"]))
|
|
|
|
# Run the compiler with the environement variable set
|
|
sys.exit(subprocess.run(compiler_command).returncode)
|