[all-commits] [llvm/llvm-project] a71e2b: [libc][errno] Remove non asm generic error number ...
Robin Caloudis via All-commits
all-commits at lists.llvm.org
Tue May 14 21:03:09 PDT 2024
Branch: refs/heads/main
Home: https://github.com/llvm/llvm-project
Commit: a71e2b9d0f287e4927e51d6764f90e492ba136e1
https://github.com/llvm/llvm-project/commit/a71e2b9d0f287e4927e51d6764f90e492ba136e1
Author: Robin Caloudis <robin.caloudis at gmx.de>
Date: 2024-05-15 (Wed, 15 May 2024)
Changed paths:
M libc/include/llvm-libc-macros/generic-error-number-macros.h
Log Message:
-----------
[libc][errno] Remove non asm generic error number (#92172)
The following small thing caught my eye:
1) `EILSEQ` is not part of the generic asm error number macros. See the
[full list of generic asm errno
codes](https://github.com/torvalds/linux/blob/4b95dc87362aa57bdd0dcbad109ca5e5ef3cbb6c/include/uapi/asm-generic/errno-base.h).
AFAIK the generic asm errno numbers are common between different
operating systems and architectures. `EILSEQ` is not part of this common
set of errno's.
2) `EILSEQ`'s value is wrong. During the addition of `EILSEQ` in
https://reviews.llvm.org/D151129, the value `35` was probably chosen as
its the consecutive number. This is not correct. The actual values can
be looked up for example here:
* [For Linux
kernel](https://github.com/search?q=repo%3Atorvalds%2Flinux+EILSEQ&type=code&p=1):
`EILSEQ = 84` (uapi; i.e. x86_64), `EILSEQ = 88` (mips), `EILSEQ = 47`
(parisc)
* [For Darwin
kernel](https://github.com/apple-oss-distributions/xnu/blob/main/bsd/sys/errno.h#L237):
`EILSEQ = 92`
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