From 64ad80e6d95871f17be4cd01da15581f41ac0b2b Mon Sep 17 00:00:00 2001
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From: Khem Raj <raj.khem@gmail.com>
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Date: Mon, 27 May 2019 21:10:34 -0700
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Subject: [PATCH] riscv: Disable atomic operations
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Signed-off-by: Khem Raj <raj.khem@gmail.com>
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---
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js/src/jit/AtomicOperations.h | 2 ++
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1 file changed, 2 insertions(+)
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--- a/js/src/jit/AtomicOperations.h
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+++ b/js/src/jit/AtomicOperations.h
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@@ -393,6 +393,8 @@ inline bool AtomicOperations::isLockfree
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#include "jit/none/AtomicOperations-feeling-lucky.h"
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#elif defined(__s390__) || defined(__s390x__)
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#include "jit/none/AtomicOperations-feeling-lucky.h"
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+#elif defined(__riscv)
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+#include "jit/none/AtomicOperations-feeling-lucky.h"
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#else
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#error "No AtomicOperations support provided for this platform"
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#endif
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--- a/js/src/jit/none/AtomicOperations-feeling-lucky.h
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+++ b/js/src/jit/none/AtomicOperations-feeling-lucky.h
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@@ -80,6 +80,14 @@
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#define GNUC_COMPATIBLE
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#endif
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+#ifdef __riscv
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+#define GNUC_COMPATIBLE
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+#ifdef __riscv_xlen == 64
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+#define HAS_64BIT_ATOMICS
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+#define HAS_64BIT_LOCKFREE
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+#endif
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+#endif
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+
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// The default implementation tactic for gcc/clang is to use the newer
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// __atomic intrinsics added for use in C++11 <atomic>. Where that
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// isn't available, we use GCC's older __sync functions instead.
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