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#! /usr/bin/python2
import os.path
import sys
import shlex
import re
from headerutils import *
tabstop = 2
padding = " "
seen = { }
output = list()
summary = list()
sawcore = False
# list of headers to emphasize
highlight = list ()
bld_dir = ""
# search path for headers
incl_dirs = ["../include", "../libcpp/include", "common", "c-family", "c", "cp", "config" ]
# extra search paths to look in *after* the directory the source file is in.
# append (1) to the end of the first line which includes INC in list INC.
def append_1 (output, inc):
for n,t in enumerate (output):
idx = t.find(inc)
if idx != -1:
eos = idx + len (inc)
t = t[:eos] + " (1)" + t[eos+1:]
output[n] = t
return
# These headers show up as duplicates in rtl.h due to conditional code arund the includes
rtl_core = [ "machmode.h" , "signop.h" , "wide-int.h" , "double-int.h" , "real.h" , "fixed-value.h" , "statistics.h" , "vec.h" , "hash-table.h" , "hash-set.h" , "input.h" , "is-a.h" ]
def find_include_data (inc):
global sawcore
for x in incl_dirs:
nm = x+"/"+inc
if os.path.exists (nm):
info = find_unique_include_list (nm)
# rtl.h mimics coretypes for GENERATOR FILES, remove if coretypes.h seen.
if inc == "coretypes.h":
sawcore = True
elif inc == "rtl.h" and sawcore:
for i in rtl_core:
if i in info:
info.remove (i)
return info
return list()
def process_include (inc, indent):
if inc[-2:] != ".h":
return
bname = os.path.basename (inc)
if bname in highlight:
arrow = " <<-------"
if bname not in summary:
summary.append (bname)
else:
arrow = ""
if seen.get(inc) == None:
seen[inc] = 1
output.append (padding[:indent*tabstop] + bname + arrow)
info = find_include_data (inc)
for y in info:
process_include (y, indent+1)
else:
seen[inc] += 1
if (seen[inc] == 2):
append_1(output, inc)
output.append (padding[:indent*tabstop] + bname + " ("+str(seen[inc])+")" + arrow)
extradir = list()
usage = False
src = list()
for x in sys.argv[1:]:
if x[0:2] == "-i":
bld = x[2:]
extradir.append (bld)
elif x[0:2] == "-s":
highlight.append (os.path.basename (x[2:]))
elif x[0:2] == "-h":
usage = True
else:
src.append (x)
if len(src) != 1:
usage = True
elif not os.path.exists (src[0]):
print src[0] + ": Requested source file does not exist.\n"
usage = True
if usage:
print "show-headers [-idir] [-sfilen] file1 "
print " "
print " Show a hierarchical visual format how many times each header file"
print " is included in a source file. Should be run from the source directory"
print " files from find-include-depends"
print " -s : search for a header, and point it out."
print " -i : Specifies additonal directories to search for includes."
sys.exit(0)
if extradir:
incl_dirs = extradir + incl_dirs;
blddir = find_gcc_bld_dir ("../..")
if blddir:
print "Using build directory: " + blddir
incl_dirs.insert (0, blddir)
else:
print "Could not find a build directory, better results if you specify one with -i"
# search path is now ".", blddir, extradirs_from_-i, built_in_incl_dirs
incl_dirs.insert (0, ".")
# if source is in a subdirectory, prepend the subdirectory to the search list
x = src[0]
srcpath = os.path.dirname(x)
if srcpath:
incl_dirs.insert (0, srcpath)
output = list()
sawcore = False
data = open (x).read().splitlines()
for line in data:
d = find_pound_include (line, True, True)
if d and d[-2:] == ".h":
process_include (d, 1)
print "\n" + x
for line in output:
print line
if highlight:
print " "
for h in summary:
print h + " is included by source file."
for h in highlight:
if h not in summary:
print h + " is not included by source file."
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