zephyr

56943 Commits

82 Branches

204 Tags

1.7 GiB

Branch: backport-73945-to-v2.7-branch

Commit Graph

Author	SHA1	Message	Date
Daniel Leung	1117169980	kernel: generate placeholders for kobj tables before final build Due to the use of gperf to generate hash table for kobjects, the addresses of these kobjects cannot change during the last few phases of linking (especially between zephyr_prebuilt.elf and zephyr.elf). Because of this, the gperf generated data needs to be placed at the end of memory to avoid pushing symbols around in memory. This prevents moving these generated blocks to earlier sections, for example, pinned data section needed for demand paging. So create placeholders for use in intermediate linking to reserve space for these generated blocks. Due to uncertainty on the size of these blocks, more space is being reserved which could result in wasted space. Though, this retains the use of hash table for faster lookup. Signed-off-by: Daniel Leung <daniel.leung@intel.com>	4 years ago

Author

SHA1

Message

Date

Daniel Leung

1117169980

kernel: generate placeholders for kobj tables before final build

Due to the use of gperf to generate hash table for kobjects,
the addresses of these kobjects cannot change during the last
few phases of linking (especially between zephyr_prebuilt.elf
and zephyr.elf). Because of this, the gperf generated data
needs to be placed at the end of memory to avoid pushing symbols
around in memory. This prevents moving these generated blocks
to earlier sections, for example, pinned data section needed
for demand paging. So create placeholders for use in
intermediate linking to reserve space for these generated blocks.
Due to uncertainty on the size of these blocks, more space is
being reserved which could result in wasted space. Though, this
retains the use of hash table for faster lookup.

Signed-off-by: Daniel Leung <daniel.leung@intel.com>

4 years ago

1 Commits (backport-73945-to-v2.7-branch)