beremiz

GCC BUILD: Prevent Memory Error when compiling huge projects.

23 months ago, Edouard Tisserant
69d161fc2e08
Parents 74035ea6792c
Children 466be4f52cb9
GCC BUILD: Prevent Memory Error when compiling huge projects.

Also deleted dead code.
1 files changed, 15 insertions(+), 3 deletions(-)
  • +15 -3
    targets/toolchain_gcc.py
    • --- a/targets/toolchain_gcc.py Wed Jul 03 11:44:01 2024 +0200
    +++ b/targets/toolchain_gcc.py Thu Jul 04 11:24:04 2024 +0200
    @@ -38,6 +38,18 @@
    includes_re = re.compile(r'\s*#include\s*["<]([^">]*)[">].*')
    +def compute_file_md5(filetocheck):
    + hasher = hashlib.md5()
    + with open(filetocheck, 'rb') as afile:
    + while True:
    + buf = afile.read(65536)
    + if len(buf) > 0:
    + hasher.update(buf)
    + else:
    + break
    + return hasher.hexdigest()
    +
    +
    class toolchain_gcc(object):
    """
    This abstract class contains GCC specific code.
    @@ -136,9 +148,9 @@
    # Get latest computed hash and deps
    oldhash, deps = self.srcmd5.get(bn, (None, []))
    # read source
    - src = open(os.path.join(self.buildpath, bn)).read()
    + src = os.path.join(self.buildpath, bn)
    # compute new hash
    - newhash = hashlib.md5(src.encode()).hexdigest()
    + newhash = compute_file_md5(src)
    # compare
    match = (oldhash == newhash)
    if not match:
    @@ -256,7 +268,7 @@
    self.CTRInstance.logger.write(" [pass] " + ' '.join(obns)+" -> " + self.bin + "\n")
    # Calculate md5 key and get data for the new created PLC
    - self.md5key = hashlib.md5(open(self.bin_path, "rb").read()).hexdigest()
    + self.md5key = compute_file_md5(self.bin_path)
    # Store new PLC filename based on md5 key
    f = open(self._GetMD5FileName(), "w")