Add low-overhead profiler. Part 1: interpreter, low-level C API.

1 files changed, 12 insertions, 0 deletions

diff --git a/src/lj_arch.h b/src/lj_arch.h
index c5f2fb3d..ccb54270 100644
--- a/src/lj_arch.h
+++ b/src/lj_arch.h
@@ -366,6 +366,18 @@
 #define LJ_HASFFI               1
 #endif
 
+#if defined(LUAJIT_DISABLE_PROFILE)
+#define LJ_HASPROFILE           0
+#elif LJ_TARGET_POSIX
+#define LJ_HASPROFILE           1
+#define LJ_PROFILE_SIGPROF      1
+#elif LJ_TARGET_WINDOWS
+#define LJ_HASPROFILE           1
+#define LJ_PROFILE_WTHREAD      1
+#else
+#define LJ_HASPROFILE           0
+#endif
+
 #ifndef LJ_ARCH_HASFPU
 #define LJ_ARCH_HASFPU          1
 #endif