soc/intel_adsp: Linkage rework
Lots of changes to the linkage, none major:
+ Remove all the manually-defined ELF program headers. This was a big
pain to maintain, and I finally figured out why we were doing this:
it turns out to have been a workaround for the flags issue below.
+ Suppress the "empty loadable section" warnings at module generation.
This turns out to be an objcopy issue, when you drop all the
sections from an ELF program header.
+ Set section flags for NOLOAD sections manually. Rimage is very
strict about flags (even to the point of trying to suck in its own
metadata section as program text). This turns out to be really
fragile, as the linker automatically sets flags on the output
section based on the symbols placed in it. Rather than needing to
have one program header per section, or playing games in the
assembly for section definition to make this all match, just set the
flags expressly on the sections we know about on the objcopy command
line.
+ Similarly drop the special memory regions with explicit faked
"physical" addresses that were being used for non-loadable sections
(e.g. .fw_metadata, .static_log_entries). Just link them all after
the rest of the image like other platforms do.
+ Clean up multiple levels of macro indirection for the manifest base
address, which is ultimately coming from kconfig. Now the magic
numbers don't seem so magic.
+ Remove legacy symbol exports for "cacheattr" that we don't use
anymore.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
5 files changed
