56 lines
1.9 KiB
Diff
56 lines
1.9 KiB
Diff
diff --git a/nspr/pr/include/md/_linux.h b/nspr/pr/include/md/_linux.h
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index ad57d08..57877b8 100644
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--- a/nspr/pr/include/md/_linux.h
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+++ b/nspr/pr/include/md/_linux.h
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@@ -105,6 +105,15 @@
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#endif
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#if defined(__i386__)
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+#if defined(__GNUC__)
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+/* Use GCC built-in functions */
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+#define _PR_HAVE_ATOMIC_OPS
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+#define _MD_INIT_ATOMIC()
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+#define _MD_ATOMIC_INCREMENT(ptr) __sync_add_and_fetch(ptr, 1)
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+#define _MD_ATOMIC_DECREMENT(ptr) __sync_sub_and_fetch(ptr, 1)
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+#define _MD_ATOMIC_ADD(ptr, i) __sync_add_and_fetch(ptr, i)
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+#define _MD_ATOMIC_SET(ptr, nv) __sync_lock_test_and_set(ptr, nv)
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+#else
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#define _PR_HAVE_ATOMIC_OPS
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#define _MD_INIT_ATOMIC()
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extern PRInt32 _PR_x86_AtomicIncrement(PRInt32 *val);
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@@ -116,6 +125,7 @@ extern PRInt32 _PR_x86_AtomicAdd(PRInt32 *ptr, PRInt32 val);
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extern PRInt32 _PR_x86_AtomicSet(PRInt32 *val, PRInt32 newval);
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#define _MD_ATOMIC_SET _PR_x86_AtomicSet
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#endif
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+#endif
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#if defined(__ia64__)
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#define _PR_HAVE_ATOMIC_OPS
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@@ -131,6 +141,15 @@ extern PRInt32 _PR_ia64_AtomicSet(PRInt32 *val, PRInt32 newval);
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#endif
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#if defined(__x86_64__)
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+#if defined(__GNUC__)
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+/* Use GCC built-in functions */
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+#define _PR_HAVE_ATOMIC_OPS
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+#define _MD_INIT_ATOMIC()
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+#define _MD_ATOMIC_INCREMENT(ptr) __sync_add_and_fetch(ptr, 1)
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+#define _MD_ATOMIC_DECREMENT(ptr) __sync_sub_and_fetch(ptr, 1)
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+#define _MD_ATOMIC_ADD(ptr, i) __sync_add_and_fetch(ptr, i)
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+#define _MD_ATOMIC_SET(ptr, nv) __sync_lock_test_and_set(ptr, nv)
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+#else
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#define _PR_HAVE_ATOMIC_OPS
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#define _MD_INIT_ATOMIC()
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extern PRInt32 _PR_x86_64_AtomicIncrement(PRInt32 *val);
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@@ -142,6 +161,7 @@ extern PRInt32 _PR_x86_64_AtomicAdd(PRInt32 *ptr, PRInt32 val);
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extern PRInt32 _PR_x86_64_AtomicSet(PRInt32 *val, PRInt32 newval);
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#define _MD_ATOMIC_SET _PR_x86_64_AtomicSet
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#endif
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+#endif
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#if defined(__loongarch__)
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#if defined(__GNUC__)
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--
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2.32.1 (Apple Git-133)
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