debug_line.c File Reference

#include "config.h"
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <stddef.h>
#include <stdio.h>
#include <bfd.h>
#include <limits.h>
#include "opjitconv.h"
#include "jitdump.h"
#include "opagent.h"
#include "op_libiberty.h"
#include "op_growable_buffer.h"

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Data Structures
struct	debug_line_header
struct	compilation_unit_header
Typedefs
typedef uint32_t	uword
typedef uint16_t	uhalf
typedef int32_t	sword
typedef int16_t	shalf
typedef uint8_t	ubyte
typedef int8_t	sbyte
Enumerations
enum	lns_opcode { DW_LNS_copy = 1, DW_LNS_advance_pc, DW_LNS_advance_line, DW_LNS_set_file, DW_LNS_set_column, DW_LNS_negate_stmt, DW_LNS_set_basic_block, DW_LNS_const_add_pc, DW_LNS_fixed_advance_pc, DW_LNS_max_opcode }
enum	lne_opcode { DW_LNE_end_sequence = 1, DW_LNE_set_address, DW_LNE_define_file }
enum	dw_tag { DW_TAG_compile_unit = 0x11 }
enum	dw_at { DW_AT_name = 0x03, DW_AT_stmt_list = 0x10, DW_AT_low_pc, DW_AT_high_pc, DW_AT_language, DW_AT_compdir = 0x1b, DW_AT_producer = 0x25 }
enum	dw_children { DW_CHILDREN_no, DW_CHILDREN_yes }
enum	dw_form { DW_FORM_data4 = 0x06 }
Functions
static void	emit_uword (struct growable_buffer *b, uword data)
static void	emit_string (struct growable_buffer b, char const s)
static void	emit_unsigned_LEB128 (struct growable_buffer *b, unsigned long data)
static void	emit_signed_LEB128 (struct growable_buffer *b, long data)
static void	emit_extended_opcode (struct growable_buffer b, ubyte opcode, void data, size_t data_len)
static void	emit_opcode (struct growable_buffer *b, ubyte opcode)
static void	emit_opcode_signed (struct growable_buffer *b, ubyte opcode, long data)
static void	emit_opcode_unsigned (struct growable_buffer *b, ubyte opcode, unsigned long data)
static void	emit_advance_pc (struct growable_buffer *b, unsigned long delta_pc)
static void	emit_advance_lineno (struct growable_buffer *b, long delta_lineno)
static void	emit_lne_end_of_sequence (struct growable_buffer *b)
static void	emit_set_file (struct growable_buffer *b, unsigned long index)
static void	emit_lne_define_filename (struct growable_buffer b, char const filename)
static void	emit_lne_set_address (struct growable_buffer b, void const address)
static ubyte	get_special_opcode (struct debug_line_info const *line, unsigned int last_lineno, unsigned long last_vma)
static void	emit_lineno_info (struct growable_buffer b, struct debug_line_info const line, size_t nr_entry, unsigned long code_addr)
static void	add_debug_line (struct growable_buffer b, struct debug_line_info const line, size_t nr_entry, unsigned long code_addr)
static void	add_compilation_unit (struct growable_buffer *b, size_t offset_debug_line)
static void	create_debug_abbrev (struct growable_buffer *b)
int	init_debug_line_info (bfd *abfd)
int	finalize_debug_line_info (bfd *abfd)
Variables
struct debug_line_header	packed
static struct debug_line_header const	default_debug_line_header
static ubyte const	standard_opcode_length [DW_LNS_max_opcode-1]
static struct compilation_unit_header const	default_comp_unit_header
static struct growable_buffer	b_line
static struct growable_buffer	b_debug_info
static struct growable_buffer	b_debug_abbrev

Detailed Description

DWARF 2 debug line info creation helper

Remarks:: Copyright 2007 OProfile authors; Read the file COPYING

Author:: Philippe Elie

Definition in file debug_line.c.

Typedef Documentation

typedef int8_t sbyte

Definition at line 36 of file debug_line.c.

typedef int16_t shalf

Definition at line 34 of file debug_line.c.

typedef int32_t sword

Definition at line 33 of file debug_line.c.

typedef uint8_t ubyte

Definition at line 35 of file debug_line.c.

typedef uint16_t uhalf

Definition at line 32 of file debug_line.c.

typedef uint32_t uword

Definition at line 31 of file debug_line.c.

Enumeration Type Documentation

enum dw_at

Enumerator:

DW_AT_name
DW_AT_stmt_list
DW_AT_low_pc
DW_AT_high_pc
DW_AT_language
DW_AT_compdir
DW_AT_producer

Definition at line 69 of file debug_line.c.

enum dw_children

Enumerator:

DW_CHILDREN_no
DW_CHILDREN_yes

Definition at line 79 of file debug_line.c.

enum dw_form

Enumerator:

DW_FORM_data4

Definition at line 84 of file debug_line.c.

enum dw_tag

Enumerator:

DW_TAG_compile_unit

Definition at line 65 of file debug_line.c.

enum lne_opcode

Enumerator:

DW_LNE_end_sequence
DW_LNE_set_address
DW_LNE_define_file

Definition at line 59 of file debug_line.c.

enum lns_opcode

Enumerator:

DW_LNS_copy
DW_LNS_advance_pc
DW_LNS_advance_line
DW_LNS_set_file
DW_LNS_set_column
DW_LNS_negate_stmt
DW_LNS_set_basic_block
DW_LNS_const_add_pc
DW_LNS_fixed_advance_pc
DW_LNS_max_opcode

Definition at line 42 of file debug_line.c.

Function Documentation

static void add_compilation_unit	(	struct growable_buffer *	b,
		size_t	offset_debug_line
	)			`[static]`

Definition at line 407 of file debug_line.c.

References add_data(), emit_unsigned_LEB128(), emit_uword(), growable_buffer::p, compilation_unit_header::pointer_size, growable_buffer::size, compilation_unit_header::total_length, and compilation_unit_header::version.

Referenced by init_debug_line_info().

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static void add_debug_line	(	struct growable_buffer *	b,
		struct debug_line_info const *	line,
		size_t	nr_entry,
		unsigned long	code_addr
	)			`[static]`

Definition at line 374 of file debug_line.c.

References add_data(), emit_lineno_info(), emit_lne_end_of_sequence(), debug_line_header::minimum_instruction_length, growable_buffer::p, debug_line_header::prolog_length, growable_buffer::size, debug_line_header::total_length, and debug_line_header::version.

Referenced by init_debug_line_info().

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static void create_debug_abbrev ( struct growable_buffer * b ) [static]

Definition at line 427 of file debug_line.c.

References DW_AT_stmt_list, DW_CHILDREN_yes, DW_FORM_data4, DW_TAG_compile_unit, and emit_unsigned_LEB128().

Referenced by init_debug_line_info().

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static void emit_advance_lineno	(	struct growable_buffer *	b,
		long	delta_lineno
	)			`[static]`

Definition at line 237 of file debug_line.c.

References DW_LNS_advance_line, and emit_opcode_signed().

Referenced by emit_lineno_info().

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static void emit_advance_pc	(	struct growable_buffer *	b,
		unsigned long	delta_pc
	)			`[static]`

Definition at line 231 of file debug_line.c.

References DW_LNS_advance_pc, and emit_opcode_unsigned().

Referenced by emit_lineno_info().

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static void emit_extended_opcode	(	struct growable_buffer *	b,
		ubyte	opcode,
		void *	data,
		size_t	data_len
	)			`[static]`

Definition at line 199 of file debug_line.c.

References add_data(), and emit_unsigned_LEB128().

Referenced by emit_lne_end_of_sequence(), and emit_lne_set_address().

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static void emit_lineno_info	(	struct growable_buffer *	b,
		struct debug_line_info const *	line,
		size_t	nr_entry,
		unsigned long	code_addr
	)			`[static]`

Definition at line 307 of file debug_line.c.

References DW_LNS_copy, emit_advance_lineno(), emit_advance_pc(), emit_lne_define_filename(), emit_lne_set_address(), emit_opcode(), emit_set_file(), debug_line_info::filename, filename, get_special_opcode(), debug_line_info::lineno, and debug_line_info::vma.

Referenced by add_debug_line().

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static void emit_lne_define_filename	(	struct growable_buffer *	b,
		char const *	filename
	)			`[static]`

Definition at line 255 of file debug_line.c.

References add_data(), DW_LNE_define_file, emit_opcode(), emit_string(), and emit_unsigned_LEB128().

Referenced by emit_lineno_info().

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static void emit_lne_end_of_sequence ( struct growable_buffer * b ) [static]

Definition at line 243 of file debug_line.c.

References DW_LNE_end_sequence, and emit_extended_opcode().

Referenced by add_debug_line().

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static void emit_lne_set_address	(	struct growable_buffer *	b,
		void const *	address
	)			`[static]`

Definition at line 270 of file debug_line.c.

References DW_LNE_set_address, and emit_extended_opcode().

Referenced by emit_lineno_info().

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static void emit_opcode	(	struct growable_buffer *	b,
		ubyte	opcode
	)			`[static]`

Definition at line 209 of file debug_line.c.

References add_data().

Referenced by emit_lineno_info(), and emit_lne_define_filename().

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static void emit_opcode_signed	(	struct growable_buffer *	b,
		ubyte	opcode,
		long	data
	)			`[static]`

Definition at line 215 of file debug_line.c.

References add_data(), and emit_signed_LEB128().

Referenced by emit_advance_lineno().

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static void emit_opcode_unsigned	(	struct growable_buffer *	b,
		ubyte	opcode,
		unsigned long	data
	)			`[static]`

Definition at line 223 of file debug_line.c.

References add_data(), and emit_unsigned_LEB128().

Referenced by emit_advance_pc(), and emit_set_file().

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static void emit_set_file	(	struct growable_buffer *	b,
		unsigned long	index
	)			`[static]`

Definition at line 249 of file debug_line.c.

References DW_LNS_set_file, and emit_opcode_unsigned().

Referenced by emit_lineno_info().

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static void emit_signed_LEB128	(	struct growable_buffer *	b,
		long	data
	)			`[static]`

Definition at line 179 of file debug_line.c.

References add_data().

Referenced by emit_opcode_signed().

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static void emit_string	(	struct growable_buffer *	b,
		char const *	s
	)			`[static]`

Definition at line 160 of file debug_line.c.

References add_data().

Referenced by emit_lne_define_filename().

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static void emit_unsigned_LEB128	(	struct growable_buffer *	b,
		unsigned long	data
	)			`[static]`

Definition at line 166 of file debug_line.c.

References add_data().

Referenced by add_compilation_unit(), create_debug_abbrev(), emit_extended_opcode(), emit_lne_define_filename(), and emit_opcode_unsigned().

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static void emit_uword	(	struct growable_buffer *	b,
		uword	data
	)			`[static]`

Definition at line 154 of file debug_line.c.

References add_data().

Referenced by add_compilation_unit().

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int finalize_debug_line_info ( bfd * abfd )

Definition at line 498 of file debug_line.c.

References b_debug_abbrev, b_debug_info, b_line, options::debug_info, fill_section_content(), free_buffer(), growable_buffer::p, and growable_buffer::size.

Referenced by op_jit_convert().

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static ubyte get_special_opcode	(	struct debug_line_info const *	line,
		unsigned int	last_lineno,
		unsigned long	last_vma
	)			`[static]`

Definition at line 277 of file debug_line.c.

References debug_line_header::line_base, debug_line_header::line_range, debug_line_info::lineno, debug_line_header::minimum_instruction_length, debug_line_header::opcode_base, and debug_line_info::vma.

Referenced by emit_lineno_info().

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int init_debug_line_info ( bfd * abfd )

Definition at line 441 of file debug_line.c.

References add_compilation_unit(), add_debug_line(), b_debug_abbrev, b_debug_info, b_line, jr_code_debug_info::code_addr, create_debug_abbrev(), create_section(), jitentry_debug_line::data, options::debug_info, debug_line_info::filename, init_buffer(), jitentry_debug_line_list, debug_line_info::lineno, jitentry_debug_line::next, jr_code_debug_info::nr_entry, growable_buffer::size, and debug_line_info::vma.

Referenced by op_jit_convert().

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Variable Documentation

struct growable_buffer b_debug_abbrev [static]

Definition at line 439 of file debug_line.c.

Referenced by finalize_debug_line_info(), and init_debug_line_info().

struct growable_buffer b_debug_info [static]

Definition at line 438 of file debug_line.c.

Referenced by finalize_debug_line_info(), and init_debug_line_info().

struct growable_buffer b_line [static]

Definition at line 437 of file debug_line.c.

Referenced by finalize_debug_line_info(), and init_debug_line_info().

struct compilation_unit_header const default_comp_unit_header [static]

Initial value:

Definition at line 146 of file debug_line.c.

struct debug_line_header const default_debug_line_header [static]

Initial value:

 {
    -1,
    2,
    -1,
    1,  
    1,  
    -5, 
    14,     
    DW_LNS_max_opcode
}

Definition at line 129 of file debug_line.c.

struct compilation_unit_header packed

ubyte const standard_opcode_length[DW_LNS_max_opcode-1] [static]

Initial value:

{
    0, 1, 1, 1, 1, 0, 0, 0, 1
}

Definition at line 140 of file debug_line.c.

debug_line.c File Reference

Data Structures

Typedefs

Enumerations

Functions

Variables

Detailed Description

Typedef Documentation

Enumeration Type Documentation

Function Documentation

Variable Documentation