161 lines
4.7 KiB
Python
Executable file
161 lines
4.7 KiB
Python
Executable file
#!/usr/bin/env python3
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"""
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defcheck.py -- Consistency check for the .def files.
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Copyright (C) 2006 Simon Budig <simon@gimp.org>
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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This is a hack to check the consistency of the .def files compared to
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the respective libraries.
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Invoke in the top level of the gimp source tree after compiling GIMP.
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If srcdir != builddir, run it in the build directory and pass the name
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of the source directory on the command-line.
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Needs the tool "objdump" to work
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"""
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import os, sys, subprocess
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from os import path
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def_files = (
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"libgimpbase/gimpbase.def",
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"libgimpcolor/gimpcolor.def",
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"libgimpconfig/gimpconfig.def",
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"libgimp/gimp.def",
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"libgimp/gimpui.def",
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"libgimpmath/gimpmath.def",
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"libgimpmodule/gimpmodule.def",
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"libgimpthumb/gimpthumb.def",
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"libgimpwidgets/gimpwidgets.def"
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)
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have_errors = 0
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srcdir = None
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if len(sys.argv) > 1:
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srcdir = sys.argv[1]
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if not path.exists(srcdir):
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print("Directory '%s' does not exist" % srcdir)
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sys.exit (-1)
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libextension = ".so"
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command = "nm --defined-only --extern-only "
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platform_linux = True
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if sys.platform in ['win32', 'cygwin']:
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libextension = ".dll"
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command = "objdump -p "
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platform_linux = False
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for df in def_files:
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directory, name = path.split (df)
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basename, extension = name.split (".")
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libname = path.join(os.getcwd(), directory, "lib" + basename + "-*" + libextension)
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#FIXME: This leaks to ninja stdout, which should not happen
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#print ("platform: " + sys.platform + " - extracting symbols from " + libname)
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filename = df
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if srcdir:
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filename = path.join(srcdir, df)
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try:
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defsymbols = open (filename).read ().split ()[1:]
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except IOError as message:
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print(message)
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if not srcdir:
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print("You should run this script from the toplevel source directory.")
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sys.exit (-1)
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doublesymbols = []
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for i in range (len (defsymbols)-1, 0, -1):
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if defsymbols[i] in defsymbols[:i]:
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doublesymbols.append ((defsymbols[i], i+2))
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sorterrors = ""
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sortok = True
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for i in range (len (defsymbols)-1):
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if defsymbols[i].lower() > defsymbols[i+1].lower():
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sorterrors += f"{defsymbols[i]} > {defsymbols[i+1]}\n"
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sortok = False
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sorterrors = sorterrors.split(sep='\n')
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status, nm = subprocess.getstatusoutput (command + libname)
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if status != 0:
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print("trouble reading {} - has it been compiled?".format(libname))
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have_errors = -1
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continue
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nmsymbols = ""
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if platform_linux:
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nmsymbols = nm
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else: # Windows
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# remove parts of objdump output we don't need: anything up to a few lines
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# after Export Table: ' Ordinal RVA Name'
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objnm = nm.split(sep='\n')
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found = False
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nmsymbols = ""
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for s in objnm:
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if s == " Ordinal RVA Name":
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found = True
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elif found:
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nmsymbols += s
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# else: skip this line
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nmsymbols = nmsymbols.split()[2::3]
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nmsymbols = [s for s in nmsymbols if s[0] != '_']
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missing_defs = [s for s in nmsymbols if s not in defsymbols and s not in exclude_symbols]
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missing_nms = [s for s in defsymbols if s not in nmsymbols and s not in exclude_symbols]
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if missing_defs or missing_nms or doublesymbols or not sortok:
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print()
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print("Problem found in", filename)
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if missing_defs:
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print(" the following symbols are in the library,")
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print(" but are not listed in the .def-file:")
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for s in missing_defs:
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print(" +", s)
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print()
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if missing_nms:
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print(" the following symbols are listed in the .def-file,")
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print(" but are not exported by the library.")
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for s in missing_nms:
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print(" -", s)
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print()
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if doublesymbols:
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print(" the following symbols are listed multiple times in the .def-file,")
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for s in doublesymbols:
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print(" : %s (line %d)" % s)
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print()
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if not sortok:
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print(" the .def-file is not properly sorted in the following cases")
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for s in sorterrors:
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if s != "":
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print(" * ", s)
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have_errors = -1
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sys.exit (have_errors)
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