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[devel] Improved missing symbol handling in checksym.awk; symbols missing in

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both the old and new files can now be optionally ignored, treated as errors
or warnings.
This commit is contained in:
Glenn Randers-Pehrson
2010-12-07 14:42:04 -06:00
parent f1cf90238b
commit d02f246887
4 changed files with 33 additions and 5 deletions
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26
scripts/checksym.awk
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@@ -20,6 +20,7 @@ BEGIN{
lasto = 0 # last ordinal value from png.h
mastero = 0 # highest ordinal in master file
symbolo = 0 # highest ordinal in png.h
missing = "error"# log an error on missing symbols
}
# Read existing definitions from the master file (the first
@@ -44,6 +45,13 @@ FILENAME==master && NF==2 && $2~/^@/ && $1!~/^;/ {
print master ": bad export line format:", $0
err = 1
}
FILENAME==master && $1==";missing" && NF==2{
# This allows the master file to control how missing symbols
# are handled; symbols that aren't in either the master or
# the new file. Valid values are 'ignore', 'warning' and
# 'error'
missing = $2
}
FILENAME==master {
next
}
@@ -112,11 +120,19 @@ END{
}
}
if (unexported != 0) {
# Symbols in the .def but not in the new file are errors
if (o-1 > unexported)
print "png.h: warning: unexported symbol definitions:", unexported "-" o-1
else
print "png.h: warning: unexported symbol definition:", unexported
# Symbols in the .def but not in the new file are errors, but
# the 'unexported' symbols aren't in either. By default this
# is an error too (see the setting of 'missing' at the start),
# but this can be reset on the command line or by stuff in the
# file - see the comments above.
if (missing != "ignore") {
if (o-1 > unexported)
print "png.h:", missing ": missing symbols:", unexported "-" o-1
else
print "png.h:", missing ": missing symbol:", unexported
if (missing != "warning")
err = 1
}
unexported = 0
}
if (symbol[o] != "" && removed[o] != "") {