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#! /usr/bin/env python3
#funcfinderhdr.py
#Copyright (c) 2018, David Anderson
#All rights reserved.
#
#Redistribution and use in source and binary forms, with
#or without modification, are permitted provided that the
#following conditions are met:
#
# Redistributions of source code must retain the above
# copyright notice, this list of conditions and the following
# disclaimer.
#
# Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials
# provided with the distribution.
#
#THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
#CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
#INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
#OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
#ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
#CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
#NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
#LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
#HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
#CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
#EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#Reads libdwarf.h.in and produces a concise list
#of the declared functions, sorted by function name.
# Run as
# funcfinderhdr.py
# or
# funcfinderhdr.py --nonumbers
import os
import sys
def looks_like_func(s):
fwds = s.split("(")
if len(fwds) < 2:
#print("Not func",fwds)
return "n","","",""
if fwds[1].startswith(")") == 1:
return "n","","",""
fwds2 = fwds[0].split(" ")
if len(fwds2) < 2:
#print("Not func",fwds)
return "n","","",""
if len(fwds2) == 2:
return "y",fwds2[1],fwds2[0],""
if len(fwds2) == 3:
return "y",fwds2[2],fwds2[0],fwds2[1]
return "n","","",""
def reader(path):
try:
file = open(path,"r")
except IOError as message:
print("File could not be opened: ", message,file=sys.stderr)
sys.exit(1)
out = []
iline = 0
saveword = ""
for line in file:
iline = int(iline) + 1
l2 = line.rstrip()
#if wds[0] != ".H 3 ":
#print(wds[0])
isf,func,reta,retb = looks_like_func(l2)
if isf == "y":
out += [(func,reta,retb,iline)]
file.close()
return out
if __name__ == '__main__':
showlinenum = "y"
if len(sys.argv) > 1:
if sys.argv[1] == "--nonumbers":
showlinenum = "n"
else:
print("argument ", sys.argv[1],"ignored")
full_list = reader("libdwarf.h.in");
full_list.sort()
for f in full_list:
if showlinenum == "y":
print(f)
else:
print(f[0],f[1])
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