frametypes.h

// Provides the frame type markers so they can be included by both
// the Go and eBPF components.
//
// NOTE: As this is included by both kernel and user-land components, do not
// include any files that cannot be included in both contexts.

#ifndef OPTI_FRAMETYPES_H
#define OPTI_FRAMETYPES_H

// Defines the bit mask that, when ORed with it, turn any of the below
// frame types into an error frame.
#define FRAME_MARKER_ERROR_BIT     0x80

// Indicates that the interpreter/runtime this frame belongs to is unknown.
#define FRAME_MARKER_UNKNOWN       0x0
// Indicates a Python frame
#define FRAME_MARKER_PYTHON        0x1
// Indicates a PHP frame
#define FRAME_MARKER_PHP           0x2
// Indicates a native frame
#define FRAME_MARKER_NATIVE        0x3
// Indicates a kernel frame
#define FRAME_MARKER_KERNEL        0x4
// Indicates a HotSpot frame
#define FRAME_MARKER_HOTSPOT       0x5
// Indicates a Ruby frame
#define FRAME_MARKER_RUBY          0x6
// Indicates a Perl frame
#define FRAME_MARKER_PERL          0x7
// Indicates a V8 frame
#define FRAME_MARKER_V8            0x8
// Indicates a PHP JIT frame
#define FRAME_MARKER_PHP_JIT       0x9
// Indicates a Dotnet frame
#define FRAME_MARKER_DOTNET        0xA

// Indicates a frame containing information about a critical unwinding error
// that caused further unwinding to be aborted.
#define FRAME_MARKER_ABORT         (0x7F | FRAME_MARKER_ERROR_BIT)

// HotSpot frame subtypes stored in a bitfield of the trace->lines[]
#define FRAME_HOTSPOT_STUB         0
#define FRAME_HOTSPOT_VTABLE       1
#define FRAME_HOTSPOT_INTERPRETER  2
#define FRAME_HOTSPOT_NATIVE       3

#endif