Slight script cleanup; make gensyscalls work from any directory.
Also remove a ton of dead code. Change-Id: I1315623695a004f643b155f121cbafe24b715b8a
This commit is contained in:
Elliott Hughes
@@ -37,140 +37,6 @@ def D_setlevel(level):
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verbose = level
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def find_dir_of(path):
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'''return the directory name of 'path', or "." if there is none'''
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# remove trailing slash
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if len(path) > 1 and path[-1] == '/':
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path = path[:-1]
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# find parent directory name
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d = os.path.dirname(path)
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if d == "":
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return "."
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else:
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return d
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# other stuff
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#
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#
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def find_file_from_upwards(from_path,target_file):
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"""find a file in the current directory or its parents. if 'from_path' is None,
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seach from the current program's directory"""
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path = from_path
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if path == None:
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path = find_dir_of(sys.argv[0])
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D("this script seems to be located in: %s" % path)
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while 1:
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if path == "":
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path = "."
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file = path + "/" + target_file
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D("probing "+file)
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if os.path.isfile(file):
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D("found %s in %s" % (target_file, path))
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return file
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if path == ".":
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break
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path = os.path.dirname(path)
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path = ""
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while 1:
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path = "../" + path
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file = path + target_file
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D("probing "+file)
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if os.path.isfile(file):
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D("found %s in %s" % (target_file, path))
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return file
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return None
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def find_bionic_root():
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'''find the root of the Bionic source tree. we check for the SYSCALLS.TXT file
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from the location of the current program's directory.'''
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# note that we can't use find_file_from_upwards() since we can't use os.path.abspath
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# that's because in some cases the p4 client is in a symlinked directory, and this
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# function will return the real path instead, which later creates problems when
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# p4 commands are issued
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#
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file = find_file_from_upwards(None, "SYSCALLS.TXT")
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if file:
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return os.path.dirname(file)
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else:
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return None
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def find_original_kernel_headers():
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"""try to find the directory containing the original kernel headers"""
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bionic_root = find_bionic_root()
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if not bionic_root:
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D("Could not find Bionic root !!")
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return None
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path = os.path.normpath(bionic_root + "/../../external/kernel-headers/original")
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if not os.path.isdir(path):
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D("Could not find %s" % (path))
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return None
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return path
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def find_kernel_headers():
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"""try to find the directory containing the kernel headers for this machine"""
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# First try to find the original kernel headers.
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ret = find_original_kernel_headers()
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if ret:
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D("found original kernel headers in: %s" % (ret))
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return ret
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status, version = commands.getstatusoutput( "uname -r" ) # get Linux kernel version
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if status != 0:
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D("could not execute 'uname -r' command properly")
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return None
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# get rid of the "-xenU" suffix that is found in Xen virtual machines
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if len(version) > 5 and version[-5:] == "-xenU":
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version = version[:-5]
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path = "/usr/src/linux-headers-" + version + "/include"
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D("probing %s for kernel headers" % (path))
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ret = os.path.isdir( path )
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if ret:
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D("found kernel headers in: %s" % (path))
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return path
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return None
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def find_arch_header(kernel_headers,arch,header):
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# First, try in <root>/arch/<arm>/include/<header>
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# corresponding to the location in the kernel source tree for
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# certain architectures (e.g. arm).
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path = "%s/arch/%s/include/asm/%s" % (kernel_headers, arch, header)
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D("Probing for %s" % path)
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if os.path.exists(path):
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return path
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# Try <root>/asm-<arch>/include/<header> corresponding to the location
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# in the kernel source tree for other architectures (e.g. x86).
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path = "%s/include/asm-%s/%s" % (kernel_headers, arch, header)
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D("Probing for %s" % path)
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if os.path.exists(path):
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return path
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# Otherwise, look under <root>/asm-<arch>/<header> corresponding
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# the original kernel headers directory
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path = "%s/asm-%s/%s" % (kernel_headers, arch, header)
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D("Probing for %s" % path)
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if os.path.exists(path):
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return path
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return None
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# parser for the SYSCALLS.TXT file
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#
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class SysCallsTxtParser:
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@@ -312,52 +178,3 @@ class StringOutput:
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def get(self):
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return self.line
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def create_file_path(path):
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dirs = []
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while 1:
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parent = os.path.dirname(path)
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if parent == "/":
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break
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dirs.append(parent)
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path = parent
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dirs.reverse()
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for dir in dirs:
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#print "dir %s" % dir
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if os.path.isdir(dir):
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continue
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os.mkdir(dir)
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def walk_source_files(paths,callback,args,excludes=[]):
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"""recursively walk a list of paths and files, only keeping the source files in directories"""
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for path in paths:
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if not os.path.isdir(path):
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callback(path,args)
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else:
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for root, dirs, files in os.walk(path):
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#print "w-- %s (ex: %s)" % (repr((root,dirs)), repr(excludes))
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if len(excludes):
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for d in dirs[:]:
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if d in excludes:
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dirs.remove(d)
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for f in files:
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r, ext = os.path.splitext(f)
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if ext in [ ".h", ".c", ".cpp", ".S" ]:
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callback( "%s/%s" % (root,f), args )
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def cleanup_dir(path):
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"""create a directory if needed, and ensure that it is totally empty
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by removing any existing content in it"""
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if not os.path.exists(path):
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os.mkdir(path)
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else:
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for root, dirs, files in os.walk(path, topdown=False):
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if root.endswith("kernel_headers/"):
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# skip 'kernel_headers'
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continue
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for name in files:
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os.remove(os.path.join(root, name))
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for name in dirs:
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os.rmdir(os.path.join(root, name))
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