--- a/targets/toolchain_gcc.py Tue Dec 30 22:47:15 2008 +0100
+++ b/targets/toolchain_gcc.py Sun Jan 04 17:25:22 2009 +0100
@@ -1,7 +1,9 @@
-import os
+import os, re, operator
from wxPopen import ProcessLogger
import hashlib
+includes_re = re.compile('\s*#include\s*["<]([^">]*)[">].*')
+
class toolchain_gcc():
"""
This abstract class contains GCC specific code.
@@ -15,6 +17,7 @@
self.buildpath = PuginsRootInstance._getBuildPath()
self.exe_path = os.path.join(self.buildpath, self.exe)
self.md5key = None
+ self.srcmd5 = {}
def GetBinaryCode(self):
try:
@@ -33,8 +36,33 @@
return open(self._GetMD5FileName(), "r").read()
except Exception, e:
return None
+
+ def check_and_update_hash_and_deps(self, bn):
+ # Get latest computed hash and deps
+ oldhash, deps = self.srcmd5.get(bn,(None,[]))
+ # read source
+ src = open(os.path.join(self.buildpath, bn)).read()
+ # compute new hash
+ newhash = hashlib.md5(src).hexdigest()
+ # compare
+ match = (oldhash == newhash)
+ if not match:
+ # file have changed
+ # update direct dependencies
+ deps = []
+ for l in src.splitlines():
+ res = includes_re.match(l)
+ if res is not None:
+ depfn = res.groups()[0]
+ if os.path.exists(os.path.join(self.buildpath, depfn)):
+ #print bn + " depends on "+depfn
+ deps.append(depfn)
+ # store that hashand deps
+ self.srcmd5[bn] = (newhash, deps)
+ # recurse through deps
+ # TODO detect cicular deps.
+ return reduce(operator.and_, map(self.check_and_update_hash_and_deps, deps), match)
-
def build(self):
# Retrieve toolchain user parameters
toolchain_params = self.PuginsRootInstance.BeremizRoot.getTargetType().getcontent()["value"]
@@ -52,56 +80,70 @@
else:
self.logger.write("PLC :\n")
+ relink = False
for CFile, CFLAGS in CFilesAndCFLAGS:
bn = os.path.basename(CFile)
obn = os.path.splitext(bn)[0]+".o"
+ objectfilename = os.path.splitext(CFile)[0]+".o"
+
+ match = self.check_and_update_hash_and_deps(bn)
+
+ if match:
+ self.logger.write(" [pass] "+bn+" -> "+obn+"\n")
+ else:
+ relink = True
+
+ self.logger.write(" [CC] "+bn+" -> "+obn+"\n")
+
+ status, result, err_result = ProcessLogger(
+ self.logger,
+ "\"%s\" -c \"%s\" -o \"%s\" %s %s"%
+ (self.compiler, CFile, objectfilename, self._CFLAGS, CFLAGS)
+ ).spin()
+
+ if status :
+ self.logger.write_error("C compilation of "+ bn +" failed.\n")
+ return False
+
obns.append(obn)
- self.logger.write(" [CC] "+bn+" -> "+obn+"\n")
- objectfilename = os.path.splitext(CFile)[0]+".o"
-
- status, result, err_result = ProcessLogger(
- self.logger,
- "\"%s\" -c \"%s\" -o \"%s\" %s %s"%
- (self.compiler, CFile, objectfilename, self._CFLAGS, CFLAGS)
- ).spin()
-
- if status :
- self.logger.write_error("C compilation of "+ bn +" failed.\n")
- return False
objs.append(objectfilename)
######### GENERATE library FILE ########################################
# Link all the object files into one binary file
self.logger.write("Linking :\n")
- objstring = []
-
- # Generate list .o files
- listobjstring = '"' + '" "'.join(objs) + '"'
-
- ALLldflags = ' '.join(self.CustomLDFLAGS+self.PuginsRootInstance.LDFLAGS+[self._LDFLAGS])
-
- self.logger.write(" [CC] " + ' '.join(obns)+" -> " + self.exe + "\n")
-
- status, result, err_result = ProcessLogger(
- self.logger,
- "\"%s\" %s -o \"%s\" %s"%
- (self.linker,
- listobjstring,
- self.exe_path,
- ALLldflags)
- ).spin()
-
- if status :
- return False
- else :
- # Calculate md5 key and get data for the new created PLC
- data=self.GetBinaryCode()
- self.md5key = hashlib.md5(data).hexdigest()
-
- # Store new PLC filename based on md5 key
- file = open(self._GetMD5FileName(), "w")
- file.write(self.md5key)
- file.close()
+ if relink:
+ objstring = []
+
+ # Generate list .o files
+ listobjstring = '"' + '" "'.join(objs) + '"'
+
+ ALLldflags = ' '.join(self.CustomLDFLAGS+self.PuginsRootInstance.LDFLAGS+[self._LDFLAGS])
+
+ self.logger.write(" [CC] " + ' '.join(obns)+" -> " + self.exe + "\n")
+
+ status, result, err_result = ProcessLogger(
+ self.logger,
+ "\"%s\" %s -o \"%s\" %s"%
+ (self.linker,
+ listobjstring,
+ self.exe_path,
+ ALLldflags)
+ ).spin()
+
+ if status :
+ return False
+ else :
+ # Calculate md5 key and get data for the new created PLC
+ data=self.GetBinaryCode()
+ self.md5key = hashlib.md5(data).hexdigest()
+
+ # Store new PLC filename based on md5 key
+ f = open(self._GetMD5FileName(), "w")
+ f.write(self.md5key)
+ f.close()
+ else:
+ self.logger.write(" [pass] " + ' '.join(obns)+" -> " + self.exe + "\n")
+
return True