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fix wfe_ldxr_* examples with sevl to make things more hardware independant

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Ciro Santilli 六四事件 法轮功
2020-01-13 00:00:00 +00:00
parent 3b3f073e2c
commit cc1d34f862
3 changed files with 4 additions and 4 deletions
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userland/arch/aarch64/inline_asm/wfe_ldxr_str.cpp
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@@ -14,7 +14,7 @@ std::atomic_ulong done;
int futex = 1;
void myfunc() {
__asm__ __volatile__ ("ldxr x0, [%0];wfe;wfe" : : "r" (&futex) : "x0");
__asm__ __volatile__ ("sevl;wfe;ldxr x0, [%0];wfe" : : "r" (&futex) : "x0");
done.store(futex);
}