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-rw-r--r--meta/recipes-support/db/db/arm-thumb-mutex.patch36
1 files changed, 36 insertions, 0 deletions
diff --git a/meta/recipes-support/db/db/arm-thumb-mutex.patch b/meta/recipes-support/db/db/arm-thumb-mutex.patch
new file mode 100644
index 0000000000..acd446fcd8
--- /dev/null
+++ b/meta/recipes-support/db/db/arm-thumb-mutex.patch
@@ -0,0 +1,36 @@
1--- db-4.3.29-dist/../dbinc/mutex.h 2005-11-15 07:33:27.761042518 -0800
2+++ db-4.3.29-dist/../dbinc/mutex.h 2005-11-15 07:55:24.823920060 -0800
3@@ -470,6 +470,25 @@
4 #ifdef LOAD_ACTUAL_MUTEX_CODE
5 #define MUTEX_SET_TEST 1 /* gcc/arm: 0 is clear, 1 is set. */
6
7+#if defined __thumb__
8+#define MUTEX_SET(tsl) ({ \
9+ int __r, __p; \
10+ asm volatile( \
11+ ".align 2\n\t" \
12+ "bx pc\n\t" \
13+ "nop\n\t" \
14+ ".arm\n\t" \
15+ "swpb %0, %2, [%3]\n\t" \
16+ "eor %0, %0, #1\n\t" \
17+ "orr %1, pc, #1\n\t" \
18+ "bx %1\n\t" \
19+ ".force_thumb" \
20+ : "=&r" (__r), "=r" (__p) \
21+ : "r" (1), "r" (tsl) \
22+ ); \
23+ __r & 1; \
24+})
25+#else
26 #define MUTEX_SET(tsl) ({ \
27 int __r; \
28 asm volatile( \
29@@ -480,6 +499,7 @@
30 ); \
31 __r & 1; \
32 })
33+#endif
34
35 #define MUTEX_UNSET(tsl) (*(volatile tsl_t *)(tsl) = 0)
36 #define MUTEX_INIT(tsl) MUTEX_UNSET(tsl)