ARM specific library tuning
There are many libraries out there such as libc, libgmp, and libmpr that could benefit from ARM specific versions or already have ARM specific versions that should be updated for ARMv7. List, compare notes with ARM, and talk about the relative worth.
Blueprint information
- Status:
- Not started
- Approver:
- None
- Priority:
- Undefined
- Drafter:
- Marcus Shawcroft
- Direction:
- Needs approval
- Assignee:
- None
- Definition:
- New
- Series goal:
- None
- Implementation:
-
Unknown
- Milestone target:
- None
- Started by
- Completed by
Whiteboard
Notes from the summit pulled out into:
https:/
Agenda
Which libraries do we care about, but more importantly, which libraries should we care about?
Candidates that we are either already working on, or have on the radar include:
eglibc:
What other areas of eglibc will benefit from ARM specific optimization?
String function optimization is one size fits all? We need tool chain support for STT_IFUNC to select algorithms
What is involved in getting pre-linking working and robust?
libgmp:
The multi-precision bignum library. The existing ARM customization looks to be reasonably complete, but there are some loose ends to clean up and the code should be reviewed to determine if it it can be improved for ARMV7-a. There are reasonable number of libgmp users, so work done here
libmpfr:
The Multiple Precision Floating-Point Reliable Library. The existing ARM customization needs to be reviewed for completeness and opportunities for ARMV7-a optimization.
