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Diffstat (limited to 'contrib/libpng/scripts/checksym.awk')
| -rwxr-xr-x | contrib/libpng/scripts/checksym.awk | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/contrib/libpng/scripts/checksym.awk b/contrib/libpng/scripts/checksym.awk deleted file mode 100755 index ba4c99b..0000000 --- a/contrib/libpng/scripts/checksym.awk +++ /dev/null @@ -1,161 +0,0 @@ -#!/bin/awk -f -# Check a list of symbols against the master definition -# (official) list. Arguments: -# -# awk -f checksym.awk official-def list-to-check -# -# Output is a file in the current directory called 'symbols.new', -# stdout holds error messages. Error code indicates success or -# failure. -# -# NOTE: this is a pure, old fashioned, awk script. It will -# work with any awk - -BEGIN{ - err=0 - master="" # master file - official[1] = "" # defined symbols from master file - symbol[1] = "" # defined symbols from png.h - removed[1] = "" # removed symbols from png.h - 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 -# file on the command line.) This must be a def file and it -# has definition lines (others are ignored) of the form: -# -# symbol @ordinal -# -master == "" { - master = FILENAME -} -FILENAME==master && NF==2 && $2~/^@/ && $1!~/^;/ { - o=0+substr($2,2) - if (o > 0) { - if (official[o] == "") { - official[o] = $1 - if (o > mastero) mastero = o - next - } else - print master ": duplicated symbol:", official[o] ":", $0 - } else - 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 -} - -# Read new definitions, these are free form but the lines must -# just be symbol definitions. Lines will be commented out for -# 'removed' symbols, introduced in png.h using PNG_REMOVED rather -# than PNG_EXPORT. Use symbols.dfn or pngwin.dfn to generate the -# input file. -# -# symbol @ordinal # two fields, exported symbol -# ; symbol @ordinal # three fields, removed symbol -# ; @ordinal # two fields, the last ordinal -NF==2 && $1 == ";" && $2 ~ /^@[1-9][0-9]*$/ { # last ordinal - o=0+substr($2,2) - if (lasto == 0 || lasto == o) - lasto=o - else { - print "png.h: duplicated last ordinal:", lasto, o - err = 1 - } - next -} -NF==3 && $1 == ";" && $3 ~ /^@[1-9][0-9]*$/ { # removed symbol - o=0+substr($3,2) - if (removed[o] == "" || removed[o] == $2) { - removed[o] = $2 - if (o > symbolo) symbolo = o - } else { - print "png.h: duplicated removed symbol", o ": '" removed[o] "' != '" $2 "'" - err = 1 - } - next -} -NF==2 && $2 ~ /^@[1-9][0-9]*$/ { # exported symbol - o=0+substr($2,2) - if (symbol[o] == "" || symbol[o] == $1) { - symbol[o] = $1 - if (o > symbolo) symbolo = o - } else { - print "png.h: duplicated symbol", o ": '" symbol[o] "' != '" $1 "'" - err = 1 - } -} -{ - next # skip all other lines -} - -# At the end check for symbols marked as both duplicated and removed -END{ - if (symbolo > lasto) { - print "highest symbol ordinal in png.h,", symbolo ", exceeds last ordinal from png.h", lasto - err = 1 - } - if (mastero > lasto) { - print "highest symbol ordinal in", master ",", mastero ", exceeds last ordinal from png.h", lasto - err = 1 - } - unexported=0 - for (o=1; o<=lasto; ++o) { - if (symbol[o] == "" && removed[o] == "") { - if (unexported == 0) unexported = o - if (official[o] == "") { - # missing in export list too, so ok - if (o < lasto) continue - } - } - if (unexported != 0) { - # 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] != "") { - print "png.h: symbol", o, "both exported as '" symbol[o] "' and removed as '" removed[o] "'" - err = 1 - } else if (symbol[o] != official[o]) { - # either the symbol is missing somewhere or it changed - err = 1 - if (symbol[o] == "") - print "png.h: symbol", o, "is exported as '" official[o] "' in", master - else if (official[o] == "") - print "png.h: exported symbol", o, "'" symbol[o] "' not present in", master - else - print "png.h: exported symbol", o, "'" symbol[o] "' exists as '" official[o] "' in", master - } - - # Finally generate symbols.new - if (symbol[o] != "") - print " " symbol[o], "@" o > "symbols.new" - } - - if (err != 0) { - print "*** A new list is in symbols.new ***" - exit 1 - } -} |