ir_gdb.c File Reference

#include <stddef.h>
#include <stdlib.h>
#include <unistd.h>
#include <fcntl.h>
#include "ir.h"
#include "ir_private.h"
#include "ir_elf.h"

Go to the source code of this file.

Data Structures
struct	_ir_gdbjit_obj
struct	_ir_gdbjit_ctx
struct	_ir_gdbjit_code_entry
struct	_ir_gdbjit_descriptor

Macros
#define	DW_CIE_VERSION   1
#define	SECTDEF(id, tp, al)
#define	SECTALIGN(p, a)
#define	DB(x)
#define	DI8(x)
#define	DU16(x)
#define	DU32(x)
#define	DADDR(x)
#define	DUV(x)
#define	DSV(x)
#define	DSTR(str)
#define	DALIGNNOP(s)
#define	DSECT(name, stmt)
#define	DLNE(op, s)

Typedefs
typedef struct _ir_gdbjit_obj	ir_gdbjit_obj
typedef struct _ir_gdbjit_ctx	ir_gdbjit_ctx
typedef void(*	ir_gdbjit_initf) (ir_gdbjit_ctx *ctx)
typedef struct _ir_gdbjit_code_entry	ir_gdbjit_code_entry
typedef struct _ir_gdbjit_descriptor	ir_gdbjit_descriptor

Enumerations
enum	{   DW_CFA_nop = 0x0 , DW_CFA_offset_extended = 0x5 , DW_CFA_def_cfa = 0xc , DW_CFA_def_cfa_offset = 0xe ,   DW_CFA_offset_extended_sf = 0x11 , DW_CFA_advance_loc = 0x40 , DW_CFA_offset = 0x80 }
enum	{ DW_EH_PE_udata4 = 0x03 , DW_EH_PE_textrel = 0x20 }
enum	{ DW_TAG_compile_unit = 0x11 }
enum	{ DW_children_no = 0 , DW_children_yes = 1 }
enum	{ DW_AT_name = 0x03 , DW_AT_stmt_list = 0x10 , DW_AT_low_pc = 0x11 , DW_AT_high_pc = 0x12 }
enum	{ DW_FORM_addr = 0x01 , DW_FORM_data4 = 0x06 , DW_FORM_string = 0x08 }
enum	{ DW_LNS_extended_op = 0 , DW_LNS_copy = 1 , DW_LNS_advance_pc = 2 , DW_LNS_advance_line = 3 }
enum	{ DW_LNE_end_sequence = 1 , DW_LNE_set_address = 2 }
enum
enum	{   GDBJIT_SECT_NULL , GDBJIT_SECT_text , GDBJIT_SECT_eh_frame , GDBJIT_SECT_shstrtab ,   GDBJIT_SECT_strtab , GDBJIT_SECT_symtab , GDBJIT_SECT_debug_info , GDBJIT_SECT_debug_abbrev ,   GDBJIT_SECT_debug_line , GDBJIT_SECT__MAX }
enum	{ GDBJIT_SYM_UNDEF , GDBJIT_SYM_FILE , GDBJIT_SYM_FUNC , GDBJIT_SYM__MAX }
enum	{ IR_GDBJIT_NOACTION , IR_GDBJIT_REGISTER , IR_GDBJIT_UNREGISTER }

Functions
typedef	IR_SET_ALIGNED (1, uint16_t unaligned_uint16_t)
typedef	IR_SET_ALIGNED (1, uint32_t unaligned_uint32_t)
typedef	IR_SET_ALIGNED (1, uintptr_t unaligned_uintptr_t)
IR_NEVER_INLINE void	__jit_debug_register_code (void)
void	ir_gdb_unregister_all (void)
bool	ir_gdb_present (void)
int	ir_gdb_register (const char *name, const void *start, size_t size, uint32_t sp_offset, uint32_t sp_adjustment)
void	ir_gdb_init (void)

Variables
ir_gdbjit_descriptor	__jit_debug_descriptor

Macro Definition Documentation

DADDR

#define DADDR

(

x

)

Value:

(*(unaligned_uintptr_t *)p = (x), p += sizeof(uintptr_t))

Definition at line 293 of file ir_gdb.c.

DALIGNNOP

#define DALIGNNOP

(

s

)

Value:

while ((uintptr_t)p & ((s)-1)) *p++ = DW_CFA_nop

Definition at line 297 of file ir_gdb.c.

DB

#define DB

(

x

)

Value:

(*p++ = (x))

Definition at line 289 of file ir_gdb.c.

DI8

#define DI8

(

x

)

Value:

(*(int8_t *)p = (x), p++)

Definition at line 290 of file ir_gdb.c.

DLNE

#define DLNE	(		op,
			s )

Value:

(DB(DW_LNS_extended_op), DUV(1+(s)), DB((op)))

Definition at line 400 of file ir_gdb.c.

DSECT

#define DSECT	(		name,
			stmt )

Value:

    { unaligned_uint32_t *szp_##name = (uint32_t *)p; p += 4; stmt \
        *szp_##name = (uint32_t)((p-(uint8_t *)szp_##name)-4); }

Definition at line 298 of file ir_gdb.c.

DSTR

#define DSTR

(

str

)

Value:

(ctx->p = p, ir_gdbjit_strz(ctx, (str)), p = ctx->p)

Definition at line 296 of file ir_gdb.c.

DSV

#define DSV

(

x

)

Value:

(ctx->p = p, ir_gdbjit_sleb128(ctx, (x)), p = ctx->p)

Definition at line 295 of file ir_gdb.c.

DU16

#define DU16

(

x

)

Value:

(*(unaligned_uint16_t *)p = (x), p += 2)

Definition at line 291 of file ir_gdb.c.

DU32

#define DU32

(

x

)

Value:

(*(unaligned_uint32_t *)p = (x), p += 4)

Definition at line 292 of file ir_gdb.c.

DUV

#define DUV

(

x

)

Value:

(ctx->p = p, ir_gdbjit_uleb128(ctx, (x)), p = ctx->p)

Definition at line 294 of file ir_gdb.c.

DW_CIE_VERSION

#define DW_CIE_VERSION   1

Definition at line 26 of file ir_gdb.c.

SECTALIGN

#define SECTALIGN	(		p,
			a )

Value:

      ((p) = (uint8_t *)(((uintptr_t)(p) + ((a)-1)) & ~(uintptr_t)((a)-1)))

Definition at line 285 of file ir_gdb.c.

SECTDEF

#define SECTDEF	(		id,
			tp,
			al )

Value:

    sect = &ctx->obj.sect[GDBJIT_SECT_##id];      \
    sect->name = ir_gdbjit_strz(ctx, "." #id);  \
    sect->type = ELFSECT_TYPE_##tp;               \
    sect->align = (al)

Typedef Documentation

ir_gdbjit_code_entry

typedef struct _ir_gdbjit_code_entry ir_gdbjit_code_entry

ir_gdbjit_ctx

typedef struct _ir_gdbjit_ctx ir_gdbjit_ctx

ir_gdbjit_descriptor

typedef struct _ir_gdbjit_descriptor ir_gdbjit_descriptor

ir_gdbjit_initf

typedef void(* ir_gdbjit_initf) (ir_gdbjit_ctx *ctx)

Definition at line 447 of file ir_gdb.c.

ir_gdbjit_obj

typedef struct _ir_gdbjit_obj ir_gdbjit_obj

Enumeration Type Documentation

anonymous enum

anonymous enum

Enumerator
DW_TAG_compile_unit

Definition at line 44 of file ir_gdb.c.

anonymous enum

anonymous enum

Enumerator
GDBJIT_SYM_UNDEF
GDBJIT_SYM_FILE
GDBJIT_SYM_FUNC
GDBJIT_SYM__MAX

Definition at line 112 of file ir_gdb.c.

anonymous enum

anonymous enum

Enumerator
DW_CFA_nop
DW_CFA_offset_extended
DW_CFA_def_cfa
DW_CFA_def_cfa_offset
DW_CFA_offset_extended_sf
DW_CFA_advance_loc
DW_CFA_offset

Definition at line 29 of file ir_gdb.c.

anonymous enum

anonymous enum

Enumerator
DW_AT_name
DW_AT_stmt_list
DW_AT_low_pc
DW_AT_high_pc

Definition at line 53 of file ir_gdb.c.

anonymous enum

anonymous enum

Enumerator
GDBJIT_SECT_NULL
GDBJIT_SECT_text
GDBJIT_SECT_eh_frame
GDBJIT_SECT_shstrtab
GDBJIT_SECT_strtab
GDBJIT_SECT_symtab
GDBJIT_SECT_debug_info
GDBJIT_SECT_debug_abbrev
GDBJIT_SECT_debug_line
GDBJIT_SECT__MAX

Definition at line 99 of file ir_gdb.c.

anonymous enum

anonymous enum

Enumerator
DW_LNS_extended_op
DW_LNS_copy
DW_LNS_advance_pc
DW_LNS_advance_line

Definition at line 66 of file ir_gdb.c.

anonymous enum

anonymous enum

Enumerator
IR_GDBJIT_NOACTION
IR_GDBJIT_REGISTER
IR_GDBJIT_UNREGISTER

Definition at line 483 of file ir_gdb.c.

anonymous enum

anonymous enum

Definition at line 78 of file ir_gdb.c.

anonymous enum

anonymous enum

Enumerator
DW_EH_PE_udata4
DW_EH_PE_textrel

Definition at line 39 of file ir_gdb.c.

anonymous enum

anonymous enum

Enumerator
DW_children_no
DW_children_yes

Definition at line 48 of file ir_gdb.c.

anonymous enum

anonymous enum

Enumerator
DW_LNE_end_sequence
DW_LNE_set_address

Definition at line 73 of file ir_gdb.c.

anonymous enum

anonymous enum

Enumerator
DW_FORM_addr
DW_FORM_data4
DW_FORM_string

Definition at line 60 of file ir_gdb.c.

Function Documentation

__jit_debug_register_code()

IR_NEVER_INLINE void __jit_debug_register_code

(

void

)

Definition at line 511 of file ir_gdb.c.

ir_gdb_init()

void ir_gdb_init

(

void

)

Definition at line 650 of file ir_gdb.c.

ir_gdb_present()

bool ir_gdb_present

(

void

)

Definition at line 581 of file ir_gdb.c.

ir_gdb_register()

int ir_gdb_register	(	const char *	name,
		const void *	start,
		size_t	size,
		uint32_t	sp_offset,
		uint32_t	sp_adjustment )

Definition at line 631 of file ir_gdb.c.

ir_gdb_unregister_all()

void ir_gdb_unregister_all

(

void

)

Definition at line 547 of file ir_gdb.c.

IR_SET_ALIGNED() [1/3]

typedef IR_SET_ALIGNED	(	1	,
		uint16_t	unaligned_uint16_t )

IR_SET_ALIGNED() [2/3]

typedef IR_SET_ALIGNED	(	1	,
		uint32_t	unaligned_uint32_t )

IR_SET_ALIGNED() [3/3]

typedef IR_SET_ALIGNED	(	1	,
		uintptr_t	unaligned_uintptr_t )

Variable Documentation

__jit_debug_descriptor

ir_gdbjit_descriptor __jit_debug_descriptor

Initial value:

= {
    1, IR_GDBJIT_NOACTION, NULL, NULL
}

Definition at line 507 of file ir_gdb.c.