Bug 218860 - libelf doesn't reload section headers after update with ELF_C_WRITE

[eric_metricspace.net]

Summary

The libelf library in base doesn't reload section headers after clearing them when performing an elf_update with ELF_C_WRITE. This is because it fails to clear a flag indicating that the section headers have been loaded.

[cem]

Please upload a patch with context (-U99999) (or use arc).

[cem]

@emaste , @kaiw , any objection to committing this change?

[emaste]

In D10486#273287, @cem wrote:

@emaste , @kaiw , any objection to committing this change?

I have no objection, although I'd really like kaiw@ to comment

[emaste]

I pinged @kaiw by email requesting a look at this change.

[eric_metricspace.net]

Background on this (and the other related change): I ran into both issues implementing signelf. They caused anomalous bugs, and I tracked them down and fixed them. So they're definitely issues, and the fixes definitely work.

[emaste]

Other issue in D10487