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[cmake] Add atomic ops availability detection (#464)

This commit is contained in:
ebraminio 2017-04-14 04:25:50 +04:30 committed by GitHub
parent 8568588202
commit a41d5ea445
1 changed files with 30 additions and 0 deletions
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30
CMakeLists.txt
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@ -296,6 +296,36 @@ endif ()
set(project_sources ${project_sources} ${project_headers})
##
## Atomic ops availability detection
file(WRITE "${PROJECT_BINARY_DIR}/try_compile_intel_atomic_primitives.c"
" void memory_barrier (void) { __sync_synchronize (); }
int atomic_add (int *i) { return __sync_fetch_and_add (i, 1); }
int mutex_trylock (int *m) { return __sync_lock_test_and_set (m, 1); }
void mutex_unlock (int *m) { __sync_lock_release (m); }
")
try_compile(HB_HAVE_INTEL_ATOMIC_PRIMITIVES
${PROJECT_BINARY_DIR}/try_compile_intel_atomic_primitives
SOURCES ${PROJECT_BINARY_DIR}/try_compile_intel_atomic_primitives.c)
if (HB_HAVE_INTEL_ATOMIC_PRIMITIVES)
add_definitions(-DHAVE_INTEL_ATOMIC_PRIMITIVES)
endif ()
file(WRITE "${PROJECT_BINARY_DIR}/try_compile_solaris_atomic_ops.c"
" #include <atomic.h>
/* This requires Solaris Studio 12.2 or newer: */
#include <mbarrier.h>
void memory_barrier (void) { __machine_rw_barrier (); }
int atomic_add (volatile unsigned *i) { return atomic_add_int_nv (i, 1); }
void *atomic_ptr_cmpxchg (volatile void **target, void *cmp, void *newval) { return atomic_cas_ptr (target, cmp, newval); }
")
try_compile(HB_HAVE_SOLARIS_ATOMIC_OPS
${PROJECT_BINARY_DIR}/try_compile_solaris_atomic_ops
SOURCES ${PROJECT_BINARY_DIR}/try_compile_solaris_atomic_ops.c)
if (HB_HB_HAVE_SOLARIS_ATOMIC_OPS)
add_definitions(-DHB_HAVE_SOLARIS_ATOMIC_OPS)
endif ()
##
add_library(harfbuzz ${project_sources})
target_link_libraries(harfbuzz ${THIRD_PARTY_LIBS})