mirror of
https://github.com/archlinuxarm/PKGBUILDs.git
synced 2024-09-19 22:08:32 +00:00
75 lines
2 KiB
Diff
75 lines
2 KiB
Diff
Index: trunk/Source/WTF/wtf/Atomics.h
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===================================================================
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--- trunk/Source/WTF/wtf/Atomics.h (revision 166233)
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+++ trunk/Source/WTF/wtf/Atomics.h (revision 166234)
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@@ -105,20 +105,34 @@
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"movw %1, #1\n\t"
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"ldrex %2, %0\n\t"
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"cmp %3, %2\n\t"
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"bne.n 0f\n\t"
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"strex %1, %4, %0\n\t"
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"0:"
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: "+Q"(*location), "=&r"(result), "=&r"(tmp)
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: "r"(expected), "r"(newValue)
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: "memory");
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result = !result;
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+#elif CPU(ARM64) && COMPILER(GCC)
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+ unsigned tmp;
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+ unsigned result;
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+ asm volatile(
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+ "mov %w1, #1\n\t"
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+ "ldxr %w2, [%0]\n\t"
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+ "cmp %w3, %w2\n\t"
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+ "b.ne 0f\n\t"
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+ "stxr %w1, %w4, [%0]\n\t"
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+ "0:"
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+ : "+r"(location), "=&r"(result), "=&r"(tmp)
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+ : "r"(expected), "r"(newValue)
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+ : "memory");
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+ result = !result;
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#elif CPU(ARM64)
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unsigned tmp;
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unsigned result;
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asm volatile(
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"mov %w1, #1\n\t"
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"ldxr %w2, %0\n\t"
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"cmp %w3, %w2\n\t"
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"b.ne 0f\n\t"
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"stxr %w1, %w4, %0\n\t"
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"0:"
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@@ -145,20 +159,34 @@
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#if CPU(X86_64)
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bool result;
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asm volatile(
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"lock; cmpxchgq %3, %2\n\t"
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"sete %1"
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: "+a"(expected), "=q"(result), "+m"(*location)
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: "r"(newValue)
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: "memory"
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);
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return result;
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+#elif CPU(ARM64) && COMPILER(GCC)
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+ bool result;
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+ void* tmp;
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+ asm volatile(
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+ "mov %w1, #1\n\t"
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+ "ldxr %x2, [%0]\n\t"
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+ "cmp %x3, %x2\n\t"
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+ "b.ne 0f\n\t"
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+ "stxr %w1, %x4, [%0]\n\t"
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+ "0:"
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+ : "+r"(location), "=&r"(result), "=&r"(tmp)
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+ : "r"(expected), "r"(newValue)
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+ : "memory");
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+ return !result;
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#elif CPU(ARM64)
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bool result;
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void* tmp;
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asm volatile(
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"mov %w1, #1\n\t"
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"ldxr %x2, %0\n\t"
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"cmp %x3, %x2\n\t"
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"b.ne 0f\n\t"
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"stxr %w1, %x4, %0\n\t"
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"0:"
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