Bug 14640

Summary:	gas generates broken relocations for symbols with weak defs on microblaze
Product:	binutils	Reporter:	Rich Felker <bugdal>
Component:	gas	Assignee:	Not yet assigned to anyone <unassigned>
Status:	NEW ---
Severity:	normal
Priority:	P2
Version:	unspecified
Target Milestone:	---
Host:		Target:
Build:		Last reconfirmed:

Description Rich Felker 2012-09-28 00:59:07 UTC

See this thread for a description of the issue and a patch, which is in Xilinx's fork of binutils but does not seem to have made it upstream:

http://permalink.gmane.org/gmane.linux.uclinux.microblaze/11155

Basically, the issue is that gas thinks it can generate a 16-bit relative jump when there's a local definition of the function, even if that definition is weak and might be overridden by a strong definition that's outside of the 16-bit jump range. I'm in the process of porting musl libc to microblaze, and this issue is a show-stopper since we make heavy use of weak definitions.