[mirror_ubuntu-artful-kernel.git] / tools / perf / util / jitdump.h

/*
 * 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 */
Commit	Line	Data
9b07e27f SE	1	/*
	2	* jitdump.h: jitted code info encapsulation file format
	3	*
	4	* Adapted from OProfile GPLv2 support jidump.h:
	5	* Copyright 2007 OProfile authors
	6	* Jens Wilke
	7	* Daniel Hansel
	8	* Copyright IBM Corporation 2007
	9	*/
	10	#ifndef JITDUMP_H
	11	#define JITDUMP_H
	12
	13	#include <sys/time.h>
	14	#include <time.h>
	15	#include <stdint.h>
	16
	17	/* JiTD */
	18	#define JITHEADER_MAGIC 0x4A695444
	19	#define JITHEADER_MAGIC_SW 0x4454694A
	20
	21	#define PADDING_8ALIGNED(x) ((((x) + 7) & 7) ^ 7)
0284fecd	22	#define ALIGN_8(x) (((x) + 7) & (~7))
9b07e27f SE	23
	24	#define JITHEADER_VERSION 1
	25
	26	enum jitdump_flags_bits {
2a28e230	27	JITDUMP_FLAGS_ARCH_TIMESTAMP_BIT,
9b07e27f SE	28	JITDUMP_FLAGS_MAX_BIT,
	29	};
	30
2a28e230 AH	31	#define JITDUMP_FLAGS_ARCH_TIMESTAMP (1ULL << JITDUMP_FLAGS_ARCH_TIMESTAMP_BIT)
2a28e230 AH	32
9b07e27f SE	33	#define JITDUMP_FLAGS_RESERVED (JITDUMP_FLAGS_MAX_BIT < 64 ? \
	34	(~((1ULL << JITDUMP_FLAGS_MAX_BIT) - 1)) : 0)
	35
	36	struct jitheader {
	37	uint32_t magic; /* characters "jItD" */
	38	uint32_t version; /* header version */
	39	uint32_t total_size; /* total size of header */
	40	uint32_t elf_mach; /* elf mach target */
	41	uint32_t pad1; /* reserved */
	42	uint32_t pid; /* JIT process id */
	43	uint64_t timestamp; /* timestamp */
	44	uint64_t flags; /* flags */
	45	};
	46
	47	enum jit_record_type {
	48	JIT_CODE_LOAD = 0,
	49	JIT_CODE_MOVE = 1,
	50	JIT_CODE_DEBUG_INFO = 2,
	51	JIT_CODE_CLOSE = 3,
0284fecd	52	JIT_CODE_UNWINDING_INFO = 4,
9b07e27f SE	53
	54	JIT_CODE_MAX,
	55	};
	56
	57	/* record prefix (mandatory in each record) */
	58	struct jr_prefix {
	59	uint32_t id;
	60	uint32_t total_size;
	61	uint64_t timestamp;
	62	};
	63
	64	struct jr_code_load {
	65	struct jr_prefix p;
	66
	67	uint32_t pid;
	68	uint32_t tid;
	69	uint64_t vma;
	70	uint64_t code_addr;
	71	uint64_t code_size;
	72	uint64_t code_index;
	73	};
	74
	75	struct jr_code_close {
	76	struct jr_prefix p;
	77	};
	78
	79	struct jr_code_move {
	80	struct jr_prefix p;
	81
	82	uint32_t pid;
	83	uint32_t tid;
	84	uint64_t vma;
	85	uint64_t old_code_addr;
	86	uint64_t new_code_addr;
	87	uint64_t code_size;
	88	uint64_t code_index;
	89	};
	90
	91	struct debug_entry {
	92	uint64_t addr;
	93	int lineno; /* source line number starting at 1 */
	94	int discrim; /* column discriminator, 0 is default */
	95	const char name[0]; /* null terminated filename, \xff\0 if same as previous entry */
	96	};
	97
	98	struct jr_code_debug_info {
	99	struct jr_prefix p;
	100
	101	uint64_t code_addr;
	102	uint64_t nr_entry;
	103	struct debug_entry entries[0];
	104	};
	105
0284fecd SS	106	struct jr_code_unwinding_info {
	107	struct jr_prefix p;
	108
	109	uint64_t unwinding_size;
	110	uint64_t eh_frame_hdr_size;
	111	uint64_t mapped_size;
	112	const char unwinding_data[0];
	113	};
	114
9b07e27f SE	115	union jr_entry {
	116	struct jr_code_debug_info info;
	117	struct jr_code_close close;
	118	struct jr_code_load load;
	119	struct jr_code_move move;
	120	struct jr_prefix prefix;
0284fecd	121	struct jr_code_unwinding_info unwinding;
9b07e27f SE	122	};
	123
	124	static inline struct debug_entry *
	125	debug_entry_next(struct debug_entry *ent)
	126	{
	127	void *a = ent + 1;
	128	size_t l = strlen(ent->name) + 1;
	129	return a + l;
	130	}
	131
	132	static inline char *
	133	debug_entry_file(struct debug_entry *ent)
	134	{
	135	void *a = ent + 1;
	136	return a;
	137	}
	138
	139	#endif /* !JITDUMP_H */