On 8/8/19 1:29 PM, Pawel Wieczorkiewicz wrote:
Hard-coding the special section group sizes is unreliable. Instead,
determine them dynamically by finding the related struct definitions
in the DWARF metadata.
This is a livepatch backport of kpatch upstream commit [1]:
kpatch-build: detect special section group sizes 170449847136a48b19fc
Xen only deals with alt_instr, bug_frame and exception_table_entry
structures, so sizes of these structures are obtained from xen-syms.
This change is needed since with recent Xen the alt_instr structure
has changed size from 12 to 14 bytes.
[1]
https://github.com/jpoimboe/kpatch/commit/170449847136a48b19fcceb19c1d4d257d386b56
Signed-off-by: Pawel Wieczorkiewicz <[email protected]>
Reviewed-by: Bjoern Doebel <[email protected]>
Reviewed-by: Martin Mazein <[email protected]>
---
v2:
* Applied suggestions from Ross:
- moved the livepatch-build hunk after build_full() call and
re-using newly built xen-syms
- dropped the redundant bug_frames_3_group_size()
Reviewed-by: Ross Lagerwall <[email protected]>
_______________________________________________
Xen-devel mailing list
[email protected]
https://lists.xenproject.org/mailman/listinfo/xen-devel
