diff options
Diffstat (limited to 'libc/kernel/tools/utils.py')
| -rw-r--r-- | libc/kernel/tools/utils.py | 397 |
1 files changed, 0 insertions, 397 deletions
diff --git a/libc/kernel/tools/utils.py b/libc/kernel/tools/utils.py deleted file mode 100644 index 763c7d2..0000000 --- a/libc/kernel/tools/utils.py +++ /dev/null @@ -1,397 +0,0 @@ -# common python utility routines for the Bionic tool scripts - -import sys, os, commands, string, commands - -# basic debugging trace support -# call D_setlevel to set the verbosity level -# and D(), D2(), D3(), D4() to add traces -# -verbose = 0 - -def panic(msg): - sys.stderr.write( find_program_name() + ": error: " ) - sys.stderr.write( msg ) - sys.exit(1) - -def D(msg): - global verbose - if verbose > 0: - print msg - -def D2(msg): - global verbose - if verbose >= 2: - print msg - -def D3(msg): - global verbose - if verbose >= 3: - print msg - -def D4(msg): - global verbose - if verbose >= 4: - print msg - -def D_setlevel(level): - global verbose - verbose = level - - -# other stuff -# -# -def find_program_name(): - return os.path.basename(sys.argv[0]) - -def find_program_dir(): - return os.path.dirname(sys.argv[0]) - -def find_file_from_upwards(from_path,target_file): - """find a file in the current directory or its parents. if 'from_path' is None, - seach from the current program's directory""" - path = from_path - if path == None: - path = os.path.realpath(sys.argv[0]) - path = os.path.dirname(path) - D("this script seems to be located in: %s" % path) - - while 1: - D("probing "+path) - if path == "": - file = target_file - else: - file = path + "/" + target_file - - if os.path.isfile(file): - D("found %s in %s" % (target_file, path)) - return file - - if path == "": - return None - - path = os.path.dirname(path) - -def find_bionic_root(): - file = find_file_from_upwards(None, "SYSCALLS.TXT") - if file: - return os.path.dirname(file) - else: - return None - -def find_kernel_headers(): - """try to find the directory containing the kernel headers for this machine""" - status, version = commands.getstatusoutput( "uname -r" ) # get Linux kernel version - if status != 0: - D("could not execute 'uname -r' command properly") - return None - - # get rid of the "-xenU" suffix that is found in Xen virtual machines - if len(version) > 5 and version[-5:] == "-xenU": - version = version[:-5] - - path = "/usr/src/linux-headers-" + version - D("probing %s for kernel headers" % (path+"/include")) - ret = os.path.isdir( path ) - if ret: - D("found kernel headers in: %s" % (path + "/include")) - return path - return None - - -# parser for the SYSCALLS.TXT file -# -class SysCallsTxtParser: - def __init__(self): - self.syscalls = [] - self.lineno = 0 - - def E(msg): - print "%d: %s" % (self.lineno, msg) - - def parse_line(self, line): - pos_lparen = line.find('(') - E = self.E - if pos_lparen < 0: - E("missing left parenthesis in '%s'" % line) - return - - pos_rparen = line.rfind(')') - if pos_rparen < 0 or pos_rparen <= pos_lparen: - E("missing or misplaced right parenthesis in '%s'" % line) - return - - return_type = line[:pos_lparen].strip().split() - if len(return_type) < 2: - E("missing return type in '%s'" % line) - return - - syscall_func = return_type[-1] - return_type = string.join(return_type[:-1],' ') - - pos_colon = syscall_func.find(':') - if pos_colon < 0: - syscall_name = syscall_func - else: - if pos_colon == 0 or pos_colon+1 >= len(syscall_func): - E("misplaced colon in '%s'" % line) - return - syscall_name = syscall_func[pos_colon+1:] - syscall_func = syscall_func[:pos_colon] - - if pos_rparen > pos_lparen+1: - syscall_params = line[pos_lparen+1:pos_rparen].split(',') - params = string.join(syscall_params,',') - else: - syscall_params = [] - params = "void" - - number = line[pos_rparen+1:].strip() - if number == "stub": - syscall_id = -1 - syscall_id2 = -1 - else: - try: - if number[0] == '#': - number = number[1:].strip() - numbers = string.split(number,',') - syscall_id = int(numbers[0]) - syscall_id2 = syscall_id - if len(numbers) > 1: - syscall_id2 = int(numbers[1]) - except: - E("invalid syscall number in '%s'" % line) - return - - t = { "id" : syscall_id, - "id2" : syscall_id2, - "name" : syscall_name, - "func" : syscall_func, - "params" : syscall_params, - "decl" : "%-15s %s (%s);" % (return_type, syscall_func, params) } - - self.syscalls.append(t) - - def parse_file(self, file_path): - fp = open(file_path) - for line in fp.xreadlines(): - self.lineno += 1 - line = line.strip() - if not line: continue - if line[0] == '#': continue - self.parse_line(line) - - fp.close() - - -class Output: - def __init__(self,out=sys.stdout): - self.out = out - - def write(self,msg): - self.out.write(msg) - - def writeln(self,msg): - self.out.write(msg) - self.out.write("\n") - -class StringOutput: - def __init__(self): - self.line = "" - - def write(self,msg): - self.line += msg - D2("write '%s'" % msg) - - def writeln(self,msg): - self.line += msg + '\n' - D2("write '%s\\n'"% msg) - - def get(self): - return self.line - - -def create_file_path(path): - dirs = [] - while 1: - parent = os.path.dirname(path) - #print "parent: %s <- %s" % (parent, path) - if parent == "/" or parent == "": - break - dirs.append(parent) - path = parent - - dirs.reverse() - for dir in dirs: - #print "dir %s" % dir - if os.path.isdir(dir): - continue - os.mkdir(dir) - -def walk_source_files(paths,callback,args,excludes=[]): - """recursively walk a list of paths and files, only keeping the source files in directories""" - for path in paths: - if not os.path.isdir(path): - callback(path,args) - else: - for root, dirs, files in os.walk(path): - #print "w-- %s (ex: %s)" % (repr((root,dirs)), repr(excludes)) - if len(excludes): - for d in dirs[:]: - if d in excludes: - dirs.remove(d) - for f in files: - r, ext = os.path.splitext(f) - if ext in [ ".h", ".c", ".cpp", ".S" ]: - callback( "%s/%s" % (root,f), args ) - -def cleanup_dir(path): - """create a directory if needed, and ensure that it is totally empty - by removing any existing content in it""" - if not os.path.exists(path): - os.mkdir(path) - else: - for root, dirs, files in os.walk(path, topdown=False): - if root.endswith("kernel_headers/"): - # skip 'kernel_headers' - continue - for name in files: - os.remove(os.path.join(root, name)) - for name in dirs: - os.rmdir(os.path.join(root, name)) - -def update_file( path, newdata ): - """update a file on disk, only if its content has changed""" - if os.path.exists( path ): - try: - f = open( path, "r" ) - olddata = f.read() - f.close() - except: - D("update_file: cannot read existing file '%s'" % path) - return 0 - - if oldata == newdata: - D2("update_file: no change to file '%s'" % path ) - return 0 - - update = 1 - else: - try: - create_file_path(path) - except: - D("update_file: cannot create path to '%s'" % path) - return 0 - - f = open( path, "w" ) - f.write( newdata ) - f.close() - - return 1 - - -class BatchFileUpdater: - """a class used to edit several files at once""" - def __init__(self): - self.old_files = set() - self.new_files = set() - self.new_data = {} - - def readFile(self,path): - #path = os.path.realpath(path) - if os.path.exists(path): - self.old_files.add(path) - - def readDir(self,path): - #path = os.path.realpath(path) - for root, dirs, files in os.walk(path): - for f in files: - dst = "%s/%s" % (root,f) - self.old_files.add(dst) - - def editFile(self,dst,data): - """edit a destination file. if the file is not mapped from a source, - it will be added. return 0 if the file content wasn't changed, - 1 if it was edited, or 2 if the file is new""" - #dst = os.path.realpath(dst) - result = 1 - if os.path.exists(dst): - f = open(dst, "r") - olddata = f.read() - f.close() - if olddata == data: - self.old_files.remove(dst) - return 0 - else: - result = 2 - - self.new_data[dst] = data - self.new_files.add(dst) - return result - - def getChanges(self): - """determine changes, returns (adds, deletes, edits)""" - adds = set() - edits = set() - deletes = set() - - for dst in self.new_files: - if not (dst in self.old_files): - adds.add(dst) - else: - edits.add(dst) - - for dst in self.old_files: - if not dst in self.new_files: - deletes.add(dst) - - return (adds, deletes, edits) - - def _writeFile(self,dst,data=None): - if not os.path.exists(os.path.dirname(dst)): - create_file_path(dst) - if data == None: - data = self.new_data[dst] - f = open(dst, "w") - f.write(self.new_data[dst]) - f.close() - - def updateFiles(self): - adds, deletes, edits = self.getChanges() - - for dst in sorted(adds): - self._writeFile(dst) - - for dst in sorted(edits): - self._writeFile(dst) - - for dst in sorted(deletes): - os.remove(dst) - - def updateP4Files(self): - adds, deletes, edits = self.getChanges() - - if len(adds): - files = string.join(sorted(adds)," ") - D( "%d new files will be p4 add-ed" % len(adds) ) - for dst in adds: - self._writeFile(dst) - D2("P4 ADDS: %s" % files) - o = commands.getoutput( "p4 add " + files ) - D2( o ) - - if len(edits): - files = string.join(sorted(edits)," ") - D( "%d files will be p4 edit-ed" % len(edits) ) - D2("P4 EDITS: %s" % files) - o = commands.getoutput( "p4 edit " + files ) - D2( o ) - for dst in edits: - self._writeFile(dst) - - if len(deletes): - files = string.join(sorted(deletes)," ") - D( "%d files will be p4 delete-d" % len(deletes) ) - D2("P4 DELETES: %s" % files) - o = commands.getoutput( "p4 delete " + files ) - D2( o ) |