| commit | 2c7c98c3ad719aa9d6d2594827a6894ff9950042 | [log] [tgz] |
|---|---|---|
| author | Rongrong <rongrong@oss.cipunited.com> | Mon Nov 21 14:05:40 2022 +0800 |
| committer | Meng Zhuo <mzh@golangcn.org> | Thu Nov 24 04:12:23 2022 +0000 |
| tree | ccf0377dd82c0a1e3e953b23c3c515fb73387a80 | |
| parent | 7a9ce7465575ac1bfda3aa44b95712cdd5dc47cf [diff] |
syscall, runtime/internal/syscall: zero r2 before mips linux syscalls All mips variant perform syscalls similarly. R2 (v0) holds r1 and R3 (v1) holds r2 of a syscall. The latter is only used by 2-ret syscalls. A 1-ret syscall would not touch R3 but keeps it as is, making r2 be a random value. Always reset it to 0 before SYSCALL to fix the issue. Fixes #56426 Change-Id: Ie49965c0c3c224c4a895703ac659205cd040ff56 Reviewed-on: https://go-review.googlesource.com/c/go/+/452975 TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Meng Zhuo <mzh@golangcn.org> Reviewed-by: Austin Clements <austin@google.com> Reviewed-by: Cherry Mui <cherryyz@google.com> Reviewed-by: Meng Zhuo <mzh@golangcn.org>
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