diff options
Diffstat (limited to 'meta/packages/boost/files/arm-intrinsics.patch')
-rw-r--r-- | meta/packages/boost/files/arm-intrinsics.patch | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/meta/packages/boost/files/arm-intrinsics.patch b/meta/packages/boost/files/arm-intrinsics.patch new file mode 100644 index 0000000000..3f9c620ebe --- /dev/null +++ b/meta/packages/boost/files/arm-intrinsics.patch | |||
@@ -0,0 +1,53 @@ | |||
1 | 8/17/2010 - rebased to 1.44 by Qing He <qing.he@intel.com> | ||
2 | |||
3 | diff --git a/boost/smart_ptr/detail/atomic_count_sync.hpp b/boost/smart_ptr/detail/atomic_count_sync.hpp | ||
4 | index b6359b5..78b1cc2 100644 | ||
5 | --- a/boost/smart_ptr/detail/atomic_count_sync.hpp | ||
6 | +++ b/boost/smart_ptr/detail/atomic_count_sync.hpp | ||
7 | @@ -33,17 +33,46 @@ public: | ||
8 | |||
9 | long operator++() | ||
10 | { | ||
11 | +#ifdef __ARM_ARCH_7A__ | ||
12 | + int v1, tmp; | ||
13 | + asm volatile ("1: \n\t" | ||
14 | + "ldrex %0, %1 \n\t" | ||
15 | + "add %0 ,%0, #1 \n\t" | ||
16 | + "strex %2, %0, %1 \n\t" | ||
17 | + "cmp %2, #0 \n\t" | ||
18 | + "bne 1b \n\t" | ||
19 | + : "=&r" (v1), "+Q"(value_), "=&r"(tmp) | ||
20 | + ); | ||
21 | +#else | ||
22 | return __sync_add_and_fetch( &value_, 1 ); | ||
23 | +#endif | ||
24 | } | ||
25 | |||
26 | long operator--() | ||
27 | { | ||
28 | +#ifdef __ARM_ARCH_7A__ | ||
29 | + int v1, tmp; | ||
30 | + asm volatile ("1: \n\t" | ||
31 | + "ldrex %0, %1 \n\t" | ||
32 | + "sub %0 ,%0, #1 \n\t" | ||
33 | + "strex %2, %0, %1 \n\t" | ||
34 | + "cmp %2, #0 \n\t" | ||
35 | + "bne 1b \n\t" | ||
36 | + : "=&r" (v1), "+Q"(value_), "=&r"(tmp) | ||
37 | + ); | ||
38 | + return value_; | ||
39 | +#else | ||
40 | return __sync_add_and_fetch( &value_, -1 ); | ||
41 | +#endif | ||
42 | } | ||
43 | |||
44 | operator long() const | ||
45 | { | ||
46 | +#if __ARM_ARCH_7A__ | ||
47 | + return value_; | ||
48 | +#else | ||
49 | return __sync_fetch_and_add( &value_, 0 ); | ||
50 | +#endif | ||
51 | } | ||
52 | |||
53 | private: | ||