jitdump.h

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#include <sys/time.h>
#include <time.h>
#include <stdint.h>

#include "op_types.h"

#ifndef JITDUMP_H
#define JITDUMP_H

#define JITHEADER_MAGIC 0x4F74496A

#define PADDING_8ALIGNED(x) ((((x) + 7) & 7) ^ 7)

#define JITHEADER_VERSION 1

struct jitheader {
    /* characters "jItO" */
    u32 magic;
    /* version of the dump */
    u32 version;
    u32 totalsize;
    u32 bfd_arch;
    u32 bfd_mach;
    u64 timestamp;
    char bfd_target[0];
};

enum jit_record_type {
    JIT_CODE_LOAD=0,
    JIT_CODE_UNLOAD=1,
    JIT_CODE_CLOSE=2,
    JIT_CODE_DEBUG_INFO=3
};

/* each record starts always with a id and a total_size */
struct jr_prefix {
    u32 id;
    u32 total_size;
};

/* record0 (id=0) logs a jitted code */
struct jr_code_load {
    u32 id;
    u32 total_size;
    u64 timestamp;
    u64 vma;
    u64 code_addr;
    u32 code_size;
    u32 align;
};

/* record1 (id=1) logs a code unload */
struct jr_code_unload {
    u32 id;
    u32 total_size;
    u64 timestamp;
    u64 vma;
};

/* record2 (id=2) logs end of JVM livetime */
struct jr_code_close {
    u32 id;
    u32 total_size;
    u64 timestamp;
};

/* record3 (id=3) logs debug line information. */
struct jr_code_debug_info {
    u32 id;
    u32 total_size;
    u64 timestamp;
    u64 code_addr;
    u32 nr_entry;
    u32 align;
};

#endif /* !JITDUMP_H */