37 lines
961 B
Diff
37 lines
961 B
Diff
--- db-4.3.29-dist/../dbinc/mutex.h 2005-11-15 07:33:27.761042518 -0800
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+++ db-4.3.29-dist/../dbinc/mutex.h 2005-11-15 07:55:24.823920060 -0800
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@@ -470,6 +470,25 @@
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#ifdef LOAD_ACTUAL_MUTEX_CODE
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#define MUTEX_SET_TEST 1 /* gcc/arm: 0 is clear, 1 is set. */
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+#if defined __thumb__
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+#define MUTEX_SET(tsl) ({ \
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+ int __r, __p; \
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+ asm volatile( \
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+ ".align 2\n\t" \
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+ "bx pc\n\t" \
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+ "nop\n\t" \
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+ ".arm\n\t" \
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+ "swpb %0, %2, [%3]\n\t" \
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+ "eor %0, %0, #1\n\t" \
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+ "orr %1, pc, #1\n\t" \
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+ "bx %1\n\t" \
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+ ".force_thumb" \
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+ : "=&r" (__r), "=r" (__p) \
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+ : "r" (1), "r" (tsl) \
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+ ); \
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+ __r & 1; \
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+})
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+#else
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#define MUTEX_SET(tsl) ({ \
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int __r; \
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asm volatile( \
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@@ -480,6 +499,7 @@
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); \
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__r & 1; \
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})
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+#endif
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#define MUTEX_UNSET(tsl) (*(volatile tsl_t *)(tsl) = 0)
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#define MUTEX_INIT(tsl) MUTEX_UNSET(tsl)
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