2c7c98c3ad
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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