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* This header file defines the data structures sent by the VM
* through the JVMTI CompiledMethodLoad callback function via the
* "void * compile_info" parameter. The memory pointed to by the
* compile_info parameter may not be referenced after returning from
* the CompiledMethodLoad callback. These are VM implementation
* specific data structures that may evolve in future releases. A
* JVMTI agent should interpret a non-NULL compile_info as a pointer
* to a region of memory containing a list of records. In a typical
* usage scenario, a JVMTI agent would cast each record to a
* jvmtiCompiledMethodLoadRecordHeader, a struct that represents
* arbitrary information. This struct contains a kind field to indicate
* the kind of information being passed, and a pointer to the next
* record. If the kind field indicates inlining information, then the
* agent would cast the record to a jvmtiCompiledMethodLoadInlineRecord.
* This record contains an array of PCStackInfo structs, which indicate
* for every pc address what are the methods on the invocation stack.
* The "methods" and "bcis" fields in each PCStackInfo struct specify a
* 1-1 mapping between these inlined methods and their bytecode indices.
* This can be used to derive the proper source lines of the inlined
JVMTI_CMLR_MAJOR_VERSION_1 = 0x00000001,
JVMTI_CMLR_MINOR_VERSION_0 = 0x00000000,
JVMTI_CMLR_MAJOR_VERSION = 0x00000001,
JVMTI_CMLR_MINOR_VERSION = 0x00000000
* This comment is for the "JDK import from HotSpot" sanity check:
JVMTI_CMLR_INLINE_INFO = 2
* Record that represents arbitrary information passed through JVMTI
* CompiledMethodLoadEvent void pointer.
typedef struct _jvmtiCompiledMethodLoadRecordHeader {
jvmtiCMLRKind kind; /* id for the kind of info passed in the record */
jint majorinfoversion; /* major and minor info version values. Init'ed */
jint minorinfoversion; /* to current version value in jvmtiExport.cpp. */
struct _jvmtiCompiledMethodLoadRecordHeader* next;
} jvmtiCompiledMethodLoadRecordHeader;
* Record that gives information about the methods on the compile-time
* stack at a specific pc address of a compiled method. Each element in
* the methods array maps to same element in the bcis array.
typedef struct _PCStackInfo {
void* pc; /* the pc address for this compiled method */
jint numstackframes; /* number of methods on the stack */
jmethodID* methods; /* array of numstackframes method ids */
jint* bcis; /* array of numstackframes bytecode indices */
* Record that contains inlining information for each pc address of
typedef struct _jvmtiCompiledMethodLoadInlineRecord {
jvmtiCompiledMethodLoadRecordHeader header; /* common header for casting */
jint numpcs; /* number of pc descriptors in this nmethod */
PCStackInfo* pcinfo; /* array of numpcs pc descriptors */
} jvmtiCompiledMethodLoadInlineRecord;
* Dummy record used to test that we can pass records with different
* information through the void pointer provided that they can be cast
* to a jvmtiCompiledMethodLoadRecordHeader.
typedef struct _jvmtiCompiledMethodLoadDummyRecord {
jvmtiCompiledMethodLoadRecordHeader header; /* common header for casting */
} jvmtiCompiledMethodLoadDummyRecord;