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Provide some kind of __sync_bool_compare_and_swap_4(), as it is used by CK,

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and our gcc is too ancient to provide it.
This should fix the build on mips.
This commit is contained in:
Olivier Houchard 2017-04-10 21:44:13 +00:00
parent 4ca50eab86
commit e459212853
1 changed files with 19 additions and 2 deletions
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21
sys/mips/mips/stdatomic.c
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@ -287,8 +287,8 @@ EMIT_BITWISE_FETCH_AND_OP_N(2, uint16_t, fetch_and_xor, "xor", 0)
* 32-bit routines.
*/
uint32_t
__sync_val_compare_and_swap_4(uint32_t *mem, uint32_t expected,
static __inline uint32_t
do_compare_and_swap_4(uint32_t *mem, uint32_t expected,
uint32_t desired)
{
uint32_t old, temp;
@ -307,6 +307,23 @@ __sync_val_compare_and_swap_4(uint32_t *mem, uint32_t expected,
return (old);
}
uint32_t
__sync_val_compare_and_swap_4(uint32_t *mem, uint32_t expected,
uint32_t desired)
{
return (do_compare_and_swap_4(mem, expected, desired));
}
bool
__sync_bool_compare_and_swap_4(uint32_t *mem, uint32_t expected,
uint32_t desired)
{
return (do_compare_and_swap_4(mem, expected, desired) ==
desired);
}
#define EMIT_FETCH_AND_OP_4(name, op) \
uint32_t \
__sync_##name##_4(uint32_t *mem, uint32_t val) \