Hi Kris,
On Thu, Aug 22, 2024 at 02:19:39PM -0400, Kris Van Hees wrote:
> diff --git a/scripts/generate_builtin_ranges.awk b/scripts/generate_builtin_ranges.awk
> new file mode 100755
> index 000000000000..68df05fd3036
> --- /dev/null
> +++ b/scripts/generate_builtin_ranges.awk
> @@ -0,0 +1,505 @@
> +#!/usr/bin/gawk -f
> +# SPDX-License-Identifier: GPL-2.0
> +# generate_builtin_ranges.awk: Generate address range data for builtin modules
> +# Written by Kris Van Hees <kris.van.hees@xxxxxxxxxx>
> +#
> +# Usage: generate_builtin_ranges.awk modules.builtin vmlinux.map \
> +# vmlinux.o.map > modules.builtin.ranges
> +#
> +
> +# Return the module name(s) (if any) associated with the given object.
> +#
> +# If we have seen this object before, return information from the cache.
> +# Otherwise, retrieve it from the corresponding .cmd file.
> +#
> +function get_module_info(fn, mod, obj, s) {
> + if (fn in omod)
> + return omod[fn];
> +
> + if (match(fn, /\/[^/]+$/) == 0)
> + return "";
> +
> + obj = fn;
> + mod = "";
> + fn = substr(fn, 1, RSTART) "." substr(fn, RSTART + 1) ".cmd";
> + if (getline s <fn == 1) {
> + if (match(s, /DKBUILD_MODFILE=['"]+[^'"]+/) > 0) {
> + mod = substr(s, RSTART + 16, RLENGTH - 16);
> + gsub(/['"]/, "", mod);
> + }
> + }
This doesn't work with built-in Rust modules because there's no
-DKBUILD_MODFILE flag passed to the compiler. The .cmd files do have
RUST_MODFILE set though, so presumably you could match that too?
Sami
