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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.
28 lines
630 B
Awk
28 lines
630 B
Awk
# Script to preprocess Versions.all lists based on "earliest version"
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# specifications in the shlib-versions file.
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NF == 3 && $2 == ":" { firstversion[$1] = $3; next }
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NF == 2 && $2 == "{" { thislib = $1; print; next }
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$1 == "}" {
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if (firstversion[thislib]) {
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# We haven't seen the stated version, but have produced
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# others pointing to it, so we synthesize it now.
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printf " %s\n", firstversion[thislib];
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}
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print;
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next;
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}
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{
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if (! firstversion[thislib])
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print;
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else if ($1 == firstversion[thislib]) {
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print;
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firstversion[thislib] = 0;
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}
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else
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print $1, "=", firstversion[thislib];
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}
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