Reland "Linux perf tool support update + refactoring."

src/third_party/kernel/tools/perf/util/jitdump.h

+#ifndef JITDUMP_H
+#define JITDUMP_H
+
+#include <sys/time.h>
+#include <time.h>
+#include <stdint.h>
+
+/* JiTD */
+#define JITHEADER_MAGIC         0x4A695444
+#define JITHEADER_MAGIC_SW      0x4454694A
+
+#define PADDING_8ALIGNED(x) ((((x) + 7) & 7) ^ 7)
+
+#define JITHEADER_VERSION 1
+
+struct jitheader {
+        uint32_t magic;         /* characters "jItD" */
+        uint32_t version;       /* header version */
+        uint32_t total_size;    /* total size of header */
+        uint32_t elf_mach;      /* elf mach target */
+        uint32_t pad1;          /* reserved */
+        uint32_t pid;           /* JIT process id */
+        uint64_t timestamp;     /* timestamp */
+};
+
+enum jit_record_type {
+        JIT_CODE_LOAD           = 0,
+        JIT_CODE_MOVE           = 1,
+        JIT_CODE_DEBUG_INFO     = 2,
+        JIT_CODE_CLOSE          = 3,
+
+        JIT_CODE_MAX
+};
+
+/* record prefix (mandatory in each record) */
+struct jr_prefix {
+        uint32_t id;
+        uint32_t total_size;
+        uint64_t timestamp;
+};
+
+struct jr_code_load {
+        struct jr_prefix p;
+
+        uint32_t pid;
+        uint32_t tid;
+        uint64_t vma;
+        uint64_t code_addr;
+        uint64_t code_size;
+        uint64_t code_index;
+};
+
+struct jr_code_close {
+        struct jr_prefix p;
+};
+
+struct jr_code_move {
+        struct jr_prefix p;
+
+        uint32_t pid;
+        uint32_t tid;
+        uint64_t vma;
+        uint64_t old_code_addr;
+        uint64_t new_code_addr;
+        uint64_t code_size;
+        uint64_t code_index;
+};
+
+struct jr_code_debug_info {
+        struct jr_prefix p;
+
+        uint64_t code_addr;
+        uint64_t nr_entry;
+};
+
+union jr_entry {
+        struct jr_code_debug_info info;
+        struct jr_code_close close;
+        struct jr_code_load load;
+        struct jr_code_move move;
+        struct jr_prefix prefix;
+};
+
+#endif /* !JITDUMP_H */
+