diff options
Diffstat (limited to 'deps/v8/src/sampler.h')
-rw-r--r-- | deps/v8/src/sampler.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/deps/v8/src/sampler.h b/deps/v8/src/sampler.h index a76d8b9a57..1d9ac8723b 100644 --- a/deps/v8/src/sampler.h +++ b/deps/v8/src/sampler.h @@ -51,16 +51,21 @@ struct TickSample { sp(NULL), fp(NULL), external_callback(NULL), - frames_count(0) {} + frames_count(0), + has_external_callback(false) {} void Trace(Isolate* isolate); StateTag state; // The state of the VM. Address pc; // Instruction pointer. Address sp; // Stack pointer. Address fp; // Frame pointer. - Address external_callback; + union { + Address tos; // Top stack value (*sp). + Address external_callback; + }; static const int kMaxFramesCount = 64; Address stack[kMaxFramesCount]; // Call stack. int frames_count : 8; // Number of captured frames. + bool has_external_callback : 1; }; class Sampler { |