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linux-user/arm: Implement __kernel_cmpxchg with host atomics
authorRichard Henderson <richard.henderson@linaro.org>
Wed, 23 Mar 2022 00:58:38 +0000 (17:58 -0700)
committerLaurent Vivier <laurent@vivier.eu>
Wed, 23 Mar 2022 15:53:17 +0000 (16:53 +0100)
commit7f4f0d9ea87097a31b36bcc52b7368efed35593c
tree1aad85550daa9c21d6a163ecaca2f4c6de74a778tree
parent6e05e7047c7271aa27e0cdd243a20dfd6c8cada2commit | diff
linux-user/arm: Implement __kernel_cmpxchg with host atomics

The existing implementation using start/end_exclusive
does not provide atomicity across processes.

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220323005839.94327-3-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
linux-user/arm/cpu_loop.c diff | blob | history
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