v4.19.13 snapshot.
diff --git a/tools/perf/util/jitdump.h b/tools/perf/util/jitdump.h
new file mode 100644
index 0000000..c6b9b67
--- /dev/null
+++ b/tools/perf/util/jitdump.h
@@ -0,0 +1,139 @@
+/*
+ * jitdump.h: jitted code info encapsulation file format
+ *
+ * Adapted from OProfile GPLv2 support jidump.h:
+ * Copyright 2007 OProfile authors
+ * Jens Wilke
+ * Daniel Hansel
+ * Copyright IBM Corporation 2007
+ */
+#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 ALIGN_8(x) (((x) + 7) & (~7))
+
+#define JITHEADER_VERSION 1
+
+enum jitdump_flags_bits {
+ JITDUMP_FLAGS_ARCH_TIMESTAMP_BIT,
+ JITDUMP_FLAGS_MAX_BIT,
+};
+
+#define JITDUMP_FLAGS_ARCH_TIMESTAMP (1ULL << JITDUMP_FLAGS_ARCH_TIMESTAMP_BIT)
+
+#define JITDUMP_FLAGS_RESERVED (JITDUMP_FLAGS_MAX_BIT < 64 ? \
+ (~((1ULL << JITDUMP_FLAGS_MAX_BIT) - 1)) : 0)
+
+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 */
+ uint64_t flags; /* flags */
+};
+
+enum jit_record_type {
+ JIT_CODE_LOAD = 0,
+ JIT_CODE_MOVE = 1,
+ JIT_CODE_DEBUG_INFO = 2,
+ JIT_CODE_CLOSE = 3,
+ JIT_CODE_UNWINDING_INFO = 4,
+
+ 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 debug_entry {
+ uint64_t addr;
+ int lineno; /* source line number starting at 1 */
+ int discrim; /* column discriminator, 0 is default */
+ const char name[0]; /* null terminated filename, \xff\0 if same as previous entry */
+};
+
+struct jr_code_debug_info {
+ struct jr_prefix p;
+
+ uint64_t code_addr;
+ uint64_t nr_entry;
+ struct debug_entry entries[0];
+};
+
+struct jr_code_unwinding_info {
+ struct jr_prefix p;
+
+ uint64_t unwinding_size;
+ uint64_t eh_frame_hdr_size;
+ uint64_t mapped_size;
+ const char unwinding_data[0];
+};
+
+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;
+ struct jr_code_unwinding_info unwinding;
+};
+
+static inline struct debug_entry *
+debug_entry_next(struct debug_entry *ent)
+{
+ void *a = ent + 1;
+ size_t l = strlen(ent->name) + 1;
+ return a + l;
+}
+
+static inline char *
+debug_entry_file(struct debug_entry *ent)
+{
+ void *a = ent + 1;
+ return a;
+}
+
+#endif /* !JITDUMP_H */