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361742eda9
supported version for libc 0.2.90.libio to GLIBC_2.2. * Makeconfig (soversions.mk): Grok new third column in shlib-versions, and use it to emit new variable `map-firstversions'. * scripts/firstversions.awk: New file. * Makerules (Versions.all): Use scripts/firstversions.awk and the $(map-firstversions) value to generate a modified versions list that includes renames in "A = B" syntax for each version set earlier than the "earliest symbol version" named in shlib-versions. * scripts/versions.awk: Recognize "A = B" lines in the input to mean rename version set A to B in the output to the intermediate file. * scripts/abi-versions.awk: New file. * Makerules (abi-versions.h): New target, generated by that script. [$(versioning) = yes] (before-compile): Prepend abi-versions.h. * include/shlib-compat.h: New file, uses that generated header.
40 lines
994 B
Awk
40 lines
994 B
Awk
# Script to generate <abi-versions.h> header file from Versions.all list.
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# See include/shlib-compat.h comments for explanation.
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BEGIN {
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print "/* This file is automatically generated by abi-versions.awk.";
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print " It defines symbols used by shlib-compat.h, which see. */";
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print "\n#ifndef _ABI_VERSIONS_H\n#define _ABI_VERSIONS_H";
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}
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NF == 2 && $2 == "{" {
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thislib = $1;
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gsub(/[^A-Za-z0-9_ ]/, "_"); libid = $1;
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printf "\n/* start %s */\n", thislib;
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next;
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}
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$1 == "}" {
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printf "/* end %s */\n", thislib;
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next;
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}
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$2 == "=" {
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new = $3;
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gsub(/[^A-Za-z0-9_ ]/, "_"); id = $1;
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printf "#define ABI_%s_%s\t0\t/* earliest supported %s */\n", libid, id, new;
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printf "#define VERSION_%s_%s\t%s\n", libid, id, new;
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next;
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}
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{
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vers = $1;
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gsub(/[^A-Za-z0-9_ ]/, "_"); id = $1;
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printf "#define ABI_%s_%s\t1\t/* support %s */\n", libid, id, vers;
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printf "#define VERSION_%s_%s\t%s\n", libid, id, vers;
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next;
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}
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END {
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print "\n#endif /* abi-versions.h */";
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}
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