glibc/scripts/gen-libc-modules.awk

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# Generate a header file that defines the MODULE_* macros for each library and
# module we build in glibc. The library names are pulled in from soversions.i
# and the additional modules are passed in the BUILDLIST variable.
BEGIN {
# BUILDLIST is set from the build-list variable in Makeconfig and is a space
# separated list of non-library modules that we build in glibc.
num = split (buildlist, libs, " ")
# Separate the built modules from the libraries.
libs[++num] = "LIBS_BEGIN"
}
# Skip over comments.
$1 == "#" {
next
}
# We have only one special case in soversions.i parsing, which is to replace ld
# with rtld since that's what we call it throughout the sources.
match (FILENAME, ".*soversions.i") {
name = $2
if (name == "ld")
name = "rtld"
# Library names are not duplicated in soversions.i.
libs[++num] = name
}
# Finally, print out the header file.
END {
printf ("/* AUTOGENERATED BY gen-libc-modules.awk, DO NOT EDIT. */\n\n")
for (l in libs) {
printf ("#define MODULE_%s %d\n", libs[l], l)
}
}