diff options
Diffstat (limited to 'libc/scripts/abi-versions.awk')
-rw-r--r-- | libc/scripts/abi-versions.awk | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/libc/scripts/abi-versions.awk b/libc/scripts/abi-versions.awk new file mode 100644 index 000000000..ab98d78e5 --- /dev/null +++ b/libc/scripts/abi-versions.awk @@ -0,0 +1,52 @@ +# Script to generate <abi-versions.h> header file from Versions.all list. +# See include/shlib-compat.h comments for explanation. + +# This script expects the following variables to be defined: +# oldest_abi the oldest ABI supported + +BEGIN { + print "/* This file is automatically generated by abi-versions.awk."; + print " It defines symbols used by shlib-compat.h, which see. */"; + print "\n#ifndef _ABI_VERSIONS_H\n#define _ABI_VERSIONS_H"; +} + +NF == 2 && $2 == "{" { + thislib = $1; + gsub(/[^A-Za-z0-9_ ]/, "_"); libid = $1; + printf "\n/* start %s */\n", thislib; + n = 0; + start = 0; + next; +} +$1 == "}" { + printf "/* end %s */\n", thislib; + next; +} + +$2 == "=" { + old = $1; new = $3; + gsub(/[^A-Za-z0-9_ ]/, "_"); + oldid = $1; newid = $3; + + printf "#define ABI_%s_%s\tABI_%s_%s\n", libid, oldid, libid, newid; + printf "#define VERSION_%s_%s\t%s\n", libid, oldid, new; + next; +} + +{ + vers = $1; + gsub(/[^A-Za-z0-9_ ]/, "_"); + versid = $1; + + printf "#define ABI_%s_%s\t%d\t/* support %s */\n", libid, versid, ++n, vers; + printf "#define VERSION_%s_%s\t%s\n", libid, versid, vers; + if ("GLIBC_" oldest_abi == vers) + start = 1; + if (start == 0 && oldest_abi != "default") + --n; + next; +} + +END { + print "\n#endif /* abi-versions.h */"; +} |