path: root/src/vm/gdbjit.h

// Licensed to the .NET Foundation under one or more agreements.
// The .NET Foundation licenses this file to you under the MIT license.
// See the LICENSE file in the project root for more information.
//*****************************************************************************
// File: gdbjit.h
// 

//
// Header file for GDB JIT interface implemenation.
//
//*****************************************************************************


#ifndef __GDBJIT_H__
#define __GDBJIT_H__

#include <stdint.h>
#include "method.hpp"

/* Type for a 16-bit quantity.  */
typedef uint16_t Elf32_Half;
typedef uint16_t Elf64_Half;

/* Types for signed and unsigned 32-bit quantities.  */
typedef uint32_t Elf32_Word;
typedef	int32_t  Elf32_Sword;
typedef uint32_t Elf64_Word;
typedef	int32_t  Elf64_Sword;

/* Types for signed and unsigned 64-bit quantities.  */
typedef uint64_t Elf32_Xword;
typedef	int64_t  Elf32_Sxword;
typedef uint64_t Elf64_Xword;
typedef	int64_t  Elf64_Sxword;

/* Type of addresses.  */
typedef uint32_t Elf32_Addr;
typedef uint64_t Elf64_Addr;

/* Type of file offsets.  */
typedef uint32_t Elf32_Off;
typedef uint64_t Elf64_Off;

/* Type for section indices, which are 16-bit quantities.  */
typedef uint16_t Elf32_Section;
typedef uint16_t Elf64_Section;

/* The ELF file header.  This appears at the start of every ELF file.  */

#define EI_NIDENT (16)

struct  Elf32_Ehdr
{
  unsigned char	e_ident[EI_NIDENT];	/* Magic number and other info */
  Elf32_Half	e_type;			/* Object file type */
  Elf32_Half	e_machine;		/* Architecture */
  Elf32_Word	e_version;		/* Object file version */
  Elf32_Addr	e_entry;		/* Entry point virtual address */
  Elf32_Off	e_phoff;		/* Program header table file offset */
  Elf32_Off	e_shoff;		/* Section header table file offset */
  Elf32_Word	e_flags;		/* Processor-specific flags */
  Elf32_Half	e_ehsize;		/* ELF header size in bytes */
  Elf32_Half	e_phentsize;		/* Program header table entry size */
  Elf32_Half	e_phnum;		/* Program header table entry count */
  Elf32_Half	e_shentsize;		/* Section header table entry size */
  Elf32_Half	e_shnum;		/* Section header table entry count */
  Elf32_Half	e_shstrndx;		/* Section header string table index */
  Elf32_Ehdr();
};

struct  Elf64_Ehdr
{
  unsigned char	e_ident[EI_NIDENT];	/* Magic number and other info */
  Elf64_Half	e_type;			/* Object file type */
  Elf64_Half	e_machine;		/* Architecture */
  Elf64_Word	e_version;		/* Object file version */
  Elf64_Addr	e_entry;		/* Entry point virtual address */
  Elf64_Off	e_phoff;		/* Program header table file offset */
  Elf64_Off	e_shoff;		/* Section header table file offset */
  Elf64_Word	e_flags;		/* Processor-specific flags */
  Elf64_Half	e_ehsize;		/* ELF header size in bytes */
  Elf64_Half	e_phentsize;		/* Program header table entry size */
  Elf64_Half	e_phnum;		/* Program header table entry count */
  Elf64_Half	e_shentsize;		/* Section header table entry size */
  Elf64_Half	e_shnum;		/* Section header table entry count */
  Elf64_Half	e_shstrndx;		/* Section header string table index */
  Elf64_Ehdr();
};

#define EI_MAG0		0		/* File identification byte 0 index */
#define ELFMAG0		0x7f		/* Magic number byte 0 */

#define EI_MAG1		1		/* File identification byte 1 index */
#define ELFMAG1		'E'		/* Magic number byte 1 */

#define EI_MAG2		2		/* File identification byte 2 index */
#define ELFMAG2		'L'		/* Magic number byte 2 */

#define EI_MAG3		3		/* File identification byte 3 index */
#define ELFMAG3		'F'		/* Magic number byte 3 */

/* Conglomeration of the identification bytes, for easy testing as a word.  */
#define	ELFMAG		"\177ELF"
#define	SELFMAG		4

#define EI_CLASS	4		/* File class byte index */
#define ELFCLASSNONE	0		/* Invalid class */
#define ELFCLASS32	1		/* 32-bit objects */
#define ELFCLASS64	2		/* 64-bit objects */
#define ELFCLASSNUM	3

#define EI_DATA		5		/* Data encoding byte index */
#define ELFDATANONE	0		/* Invalid data encoding */
#define ELFDATA2LSB	1		/* 2's complement, little endian */
#define ELFDATA2MSB	2		/* 2's complement, big endian */
#define ELFDATANUM	3

#define EI_VERSION	6		/* File version byte index */
					/* Value must be EV_CURRENT */

#define EI_OSABI	7		/* OS ABI identification */
#define ELFOSABI_NONE		0	/* UNIX System V ABI */
#define ELFOSABI_SYSV		0	/* Alias.  */
#define ELFOSABI_HPUX		1	/* HP-UX */
#define ELFOSABI_NETBSD		2	/* NetBSD.  */
#define ELFOSABI_GNU		3	/* Object uses GNU ELF extensions.  */
#define ELFOSABI_LINUX		ELFOSABI_GNU /* Compatibility alias.  */
#define ELFOSABI_SOLARIS	6	/* Sun Solaris.  */
#define ELFOSABI_AIX		7	/* IBM AIX.  */
#define ELFOSABI_IRIX		8	/* SGI Irix.  */
#define ELFOSABI_FREEBSD	9	/* FreeBSD.  */
#define ELFOSABI_TRU64		10	/* Compaq TRU64 UNIX.  */
#define ELFOSABI_MODESTO	11	/* Novell Modesto.  */
#define ELFOSABI_OPENBSD	12	/* OpenBSD.  */
#define ELFOSABI_ARM_AEABI	64	/* ARM EABI */
#define ELFOSABI_ARM		97	/* ARM */
#define ELFOSABI_STANDALONE	255	/* Standalone (embedded) application */

#define EI_ABIVERSION	8		/* ABI version */

#define EI_PAD		9		/* Byte index of padding bytes */

/* Legal values for e_type (object file type).  */

#define ET_NONE		0		/* No file type */
#define ET_REL		1		/* Relocatable file */
#define ET_EXEC		2		/* Executable file */
#define ET_DYN		3		/* Shared object file */
#define ET_CORE		4		/* Core file */
#define	ET_NUM		5		/* Number of defined types */
#define ET_LOOS		0xfe00		/* OS-specific range start */
#define ET_HIOS		0xfeff		/* OS-specific range end */
#define ET_LOPROC	0xff00		/* Processor-specific range start */
#define ET_HIPROC	0xffff		/* Processor-specific range end */

/* Legal values for e_machine (architecture).  */

#define EM_NONE		 0		/* No machine */
#define EM_M32		 1		/* AT&T WE 32100 */
#define EM_SPARC	 2		/* SUN SPARC */
#define EM_386		 3		/* Intel 80386 */
#define EM_68K		 4		/* Motorola m68k family */
#define EM_88K		 5		/* Motorola m88k family */
#define EM_860		 7		/* Intel 80860 */
#define EM_MIPS		 8		/* MIPS R3000 big-endian */
#define EM_S370		 9		/* IBM System/370 */
#define EM_MIPS_RS3_LE	10		/* MIPS R3000 little-endian */

#define EM_PARISC	15		/* HPPA */
#define EM_VPP500	17		/* Fujitsu VPP500 */
#define EM_SPARC32PLUS	18		/* Sun's "v8plus" */
#define EM_960		19		/* Intel 80960 */
#define EM_PPC		20		/* PowerPC */
#define EM_PPC64	21		/* PowerPC 64-bit */
#define EM_S390		22		/* IBM S390 */

#define EM_V800		36		/* NEC V800 series */
#define EM_FR20		37		/* Fujitsu FR20 */
#define EM_RH32		38		/* TRW RH-32 */
#define EM_RCE		39		/* Motorola RCE */
#define EM_ARM		40		/* ARM */
#define EM_FAKE_ALPHA	41		/* Digital Alpha */
#define EM_SH		42		/* Hitachi SH */
#define EM_SPARCV9	43		/* SPARC v9 64-bit */
#define EM_TRICORE	44		/* Siemens Tricore */
#define EM_ARC		45		/* Argonaut RISC Core */
#define EM_H8_300	46		/* Hitachi H8/300 */
#define EM_H8_300H	47		/* Hitachi H8/300H */
#define EM_H8S		48		/* Hitachi H8S */
#define EM_H8_500	49		/* Hitachi H8/500 */
#define EM_IA_64	50		/* Intel Merced */
#define EM_MIPS_X	51		/* Stanford MIPS-X */
#define EM_COLDFIRE	52		/* Motorola Coldfire */
#define EM_68HC12	53		/* Motorola M68HC12 */
#define EM_MMA		54		/* Fujitsu MMA Multimedia Accelerator*/
#define EM_PCP		55		/* Siemens PCP */
#define EM_NCPU		56		/* Sony nCPU embeeded RISC */
#define EM_NDR1		57		/* Denso NDR1 microprocessor */
#define EM_STARCORE	58		/* Motorola Start*Core processor */
#define EM_ME16		59		/* Toyota ME16 processor */
#define EM_ST100	60		/* STMicroelectronic ST100 processor */
#define EM_TINYJ	61		/* Advanced Logic Corp. Tinyj emb.fam*/
#define EM_X86_64	62		/* AMD x86-64 architecture */
#define EM_PDSP		63		/* Sony DSP Processor */

#define EM_FX66		66		/* Siemens FX66 microcontroller */
#define EM_ST9PLUS	67		/* STMicroelectronics ST9+ 8/16 mc */
#define EM_ST7		68		/* STmicroelectronics ST7 8 bit mc */
#define EM_68HC16	69		/* Motorola MC68HC16 microcontroller */
#define EM_68HC11	70		/* Motorola MC68HC11 microcontroller */
#define EM_68HC08	71		/* Motorola MC68HC08 microcontroller */
#define EM_68HC05	72		/* Motorola MC68HC05 microcontroller */
#define EM_SVX		73		/* Silicon Graphics SVx */
#define EM_ST19		74		/* STMicroelectronics ST19 8 bit mc */
#define EM_VAX		75		/* Digital VAX */
#define EM_CRIS		76		/* Axis Communications 32-bit embedded processor */
#define EM_JAVELIN	77		/* Infineon Technologies 32-bit embedded processor */
#define EM_FIREPATH	78		/* Element 14 64-bit DSP Processor */
#define EM_ZSP		79		/* LSI Logic 16-bit DSP Processor */
#define EM_MMIX		80		/* Donald Knuth's educational 64-bit processor */
#define EM_HUANY	81		/* Harvard University machine-independent object files */
#define EM_PRISM	82		/* SiTera Prism */
#define EM_AVR		83		/* Atmel AVR 8-bit microcontroller */
#define EM_FR30		84		/* Fujitsu FR30 */
#define EM_D10V		85		/* Mitsubishi D10V */
#define EM_D30V		86		/* Mitsubishi D30V */
#define EM_V850		87		/* NEC v850 */
#define EM_M32R		88		/* Mitsubishi M32R */
#define EM_MN10300	89		/* Matsushita MN10300 */
#define EM_MN10200	90		/* Matsushita MN10200 */
#define EM_PJ		91		/* picoJava */
#define EM_OPENRISC	92		/* OpenRISC 32-bit embedded processor */
#define EM_ARC_A5	93		/* ARC Cores Tangent-A5 */
#define EM_XTENSA	94		/* Tensilica Xtensa Architecture */
#define EM_AARCH64	183		/* ARM AARCH64 */
#define EM_TILEPRO	188		/* Tilera TILEPro */
#define EM_MICROBLAZE	189		/* Xilinx MicroBlaze */
#define EM_TILEGX	191		/* Tilera TILE-Gx */
#define EM_NUM		192

#define EV_NONE		0		/* Invalid ELF version */
#define EV_CURRENT	1		/* Current version */
#define EV_NUM		2

/* Processor specific flags for the ELF header e_flags field.  */
#define EF_ARM_RELEXEC		0x01
#define EF_ARM_HASENTRY		0x02
#define EF_ARM_INTERWORK	0x04
#define EF_ARM_APCS_26		0x08
#define EF_ARM_APCS_FLOAT	0x10
#define EF_ARM_PIC		0x20
#define EF_ARM_ALIGN8		0x40 /* 8-bit structure alignment is in use */
#define EF_ARM_NEW_ABI		0x80
#define EF_ARM_OLD_ABI		0x100
#define EF_ARM_SOFT_FLOAT	0x200
#define EF_ARM_VFP_FLOAT	0x400
#define EF_ARM_MAVERICK_FLOAT	0x800

#define EF_ARM_EABI_VERSION(flags)	((flags) & EF_ARM_EABIMASK)
#define EF_ARM_EABI_UNKNOWN	0x00000000
#define EF_ARM_EABI_VER1	0x01000000
#define EF_ARM_EABI_VER2	0x02000000
#define EF_ARM_EABI_VER3	0x03000000
#define EF_ARM_EABI_VER4	0x04000000
#define EF_ARM_EABI_VER5	0x05000000


/* Section header.  */

typedef struct
{
  Elf32_Word	sh_name;		/* Section name (string tbl index) */
  Elf32_Word	sh_type;		/* Section type */
  Elf32_Word	sh_flags;		/* Section flags */
  Elf32_Addr	sh_addr;		/* Section virtual addr at execution */
  Elf32_Off	sh_offset;		/* Section file offset */
  Elf32_Word	sh_size;		/* Section size in bytes */
  Elf32_Word	sh_link;		/* Link to another section */
  Elf32_Word	sh_info;		/* Additional section information */
  Elf32_Word	sh_addralign;		/* Section alignment */
  Elf32_Word	sh_entsize;		/* Entry size if section holds table */
} Elf32_Shdr;

typedef struct
{
  Elf64_Word	sh_name;		/* Section name (string tbl index) */
  Elf64_Word	sh_type;		/* Section type */
  Elf64_Xword	sh_flags;		/* Section flags */
  Elf64_Addr	sh_addr;		/* Section virtual addr at execution */
  Elf64_Off	sh_offset;		/* Section file offset */
  Elf64_Xword	sh_size;		/* Section size in bytes */
  Elf64_Word	sh_link;		/* Link to another section */
  Elf64_Word	sh_info;		/* Additional section information */
  Elf64_Xword	sh_addralign;		/* Section alignment */
  Elf64_Xword	sh_entsize;		/* Entry size if section holds table */
} Elf64_Shdr;

/* Special section indices.  */

#define SHN_UNDEF	0		/* Undefined section */
#define SHN_LORESERVE	0xff00		/* Start of reserved indices */
#define SHN_LOPROC	0xff00		/* Start of processor-specific */
#define SHN_BEFORE	0xff00		/* Order section before all others
					   (Solaris).  */
#define SHN_AFTER	0xff01		/* Order section after all others
					   (Solaris).  */
#define SHN_HIPROC	0xff1f		/* End of processor-specific */
#define SHN_LOOS	0xff20		/* Start of OS-specific */
#define SHN_HIOS	0xff3f		/* End of OS-specific */
#define SHN_ABS		0xfff1		/* Associated symbol is absolute */
#define SHN_COMMON	0xfff2		/* Associated symbol is common */
#define SHN_XINDEX	0xffff		/* Index is in extra table.  */
#define SHN_HIRESERVE	0xffff		/* End of reserved indices */

/* Legal values for sh_type (section type).  */

#define SHT_NULL	  0		/* Section header table entry unused */
#define SHT_PROGBITS	  1		/* Program data */
#define SHT_SYMTAB	  2		/* Symbol table */
#define SHT_STRTAB	  3		/* String table */
#define SHT_RELA	  4		/* Relocation entries with addends */
#define SHT_HASH	  5		/* Symbol hash table */
#define SHT_DYNAMIC	  6		/* Dynamic linking information */
#define SHT_NOTE	  7		/* Notes */
#define SHT_NOBITS	  8		/* Program space with no data (bss) */
#define SHT_REL		  9		/* Relocation entries, no addends */
#define SHT_SHLIB	  10		/* Reserved */
#define SHT_DYNSYM	  11		/* Dynamic linker symbol table */
#define SHT_INIT_ARRAY	  14		/* Array of constructors */
#define SHT_FINI_ARRAY	  15		/* Array of destructors */
#define SHT_PREINIT_ARRAY 16		/* Array of pre-constructors */
#define SHT_GROUP	  17		/* Section group */
#define SHT_SYMTAB_SHNDX  18		/* Extended section indeces */
#define	SHT_NUM		  19		/* Number of defined types.  */
#define SHT_LOOS	  0x60000000	/* Start OS-specific.  */
#define SHT_GNU_ATTRIBUTES 0x6ffffff5	/* Object attributes.  */
#define SHT_GNU_HASH	  0x6ffffff6	/* GNU-style hash table.  */
#define SHT_GNU_LIBLIST	  0x6ffffff7	/* Prelink library list */
#define SHT_CHECKSUM	  0x6ffffff8	/* Checksum for DSO content.  */
#define SHT_LOSUNW	  0x6ffffffa	/* Sun-specific low bound.  */
#define SHT_SUNW_move	  0x6ffffffa
#define SHT_SUNW_COMDAT   0x6ffffffb
#define SHT_SUNW_syminfo  0x6ffffffc
#define SHT_GNU_verdef	  0x6ffffffd	/* Version definition section.  */
#define SHT_GNU_verneed	  0x6ffffffe	/* Version needs section.  */
#define SHT_GNU_versym	  0x6fffffff	/* Version symbol table.  */
#define SHT_HISUNW	  0x6fffffff	/* Sun-specific high bound.  */
#define SHT_HIOS	  0x6fffffff	/* End OS-specific type */
#define SHT_LOPROC	  0x70000000	/* Start of processor-specific */
#define SHT_HIPROC	  0x7fffffff	/* End of processor-specific */
#define SHT_LOUSER	  0x80000000	/* Start of application-specific */
#define SHT_HIUSER	  0x8fffffff	/* End of application-specific */

/* Legal values for sh_flags (section flags).  */

#define SHF_WRITE	     (1 << 0)	/* Writable */
#define SHF_ALLOC	     (1 << 1)	/* Occupies memory during execution */
#define SHF_EXECINSTR	     (1 << 2)	/* Executable */
#define SHF_MERGE	     (1 << 4)	/* Might be merged */
#define SHF_STRINGS	     (1 << 5)	/* Contains nul-terminated strings */
#define SHF_INFO_LINK	     (1 << 6)	/* `sh_info' contains SHT index */
#define SHF_LINK_ORDER	     (1 << 7)	/* Preserve order after combining */
#define SHF_OS_NONCONFORMING (1 << 8)	/* Non-standard OS specific handling
					   required */
#define SHF_GROUP	     (1 << 9)	/* Section is member of a group.  */
#define SHF_TLS		     (1 << 10)	/* Section hold thread-local data.  */
#define SHF_MASKOS	     0x0ff00000	/* OS-specific.  */
#define SHF_MASKPROC	     0xf0000000	/* Processor-specific */
#define SHF_ORDERED	     (1 << 30)	/* Special ordering requirement
					   (Solaris).  */
#define SHF_EXCLUDE	     (1 << 31)	/* Section is excluded unless
					   referenced or allocated (Solaris).*/

#if defined(_TARGET_X86_) || defined(_TARGET_ARM_)
    typedef Elf32_Ehdr  Elf_Ehdr;
    typedef Elf32_Shdr  Elf_Shdr;
#define ADDRESS_SIZE 4    
#elif defined(_TARGET_AMD64_) || defined(_TARGET_ARM64_)
    typedef Elf64_Ehdr  Elf_Ehdr;
    typedef Elf64_Shdr  Elf_Shdr;
#define ADDRESS_SIZE 8    
#else
#error "Target is not supported"
#endif


#define DW_TAG_compile_unit             0x11
#define DW_TAG_subprogram               0x2e
#define DW_TAG_base_type                0x24

#define DW_children_no                  0
#define DW_children_yes                 1

#define DW_AT_name                              0x03
#define DW_AT_byte_size                         0x0b
#define DW_AT_stmt_list                         0x10
#define DW_AT_language                          0x13
#define DW_AT_producer                          0x25
#define DW_AT_decl_file                         0x3a
#define DW_AT_decl_line                         0x3b
#define DW_AT_encoding                          0x3e
#define DW_AT_external                          0x3f
#define DW_AT_type                              0x49

#define DW_FORM_data2                   0x05
#define DW_FORM_data1                   0x0b
#define DW_FORM_strp                    0x0e
#define DW_FORM_ref4                    0x13
#define DW_FORM_sec_offset              0x17
#define DW_FORM_flag_present            0x19

/* Line number standard opcode name. */
#define DW_LNS_copy                     0x01
#define DW_LNS_advance_pc               0x02
#define DW_LNS_advance_line             0x03
#define DW_LNS_set_file                 0x04
#define DW_LNS_set_column               0x05
#define DW_LNS_negate_stmt              0x06
#define DW_LNS_set_basic_block          0x07
#define DW_LNS_const_add_pc             0x08
#define DW_LNS_fixed_advance_pc         0x09
#define DW_LNS_set_prologue_end         0x0a /* DWARF3 */
#define DW_LNS_set_epilogue_begin       0x0b /* DWARF3 */
#define DW_LNS_set_isa                  0x0c /* DWARF3 */

/* Line number extended opcode name. */
#define DW_LNE_end_sequence             0x01
#define DW_LNE_set_address              0x02
#define DW_LNE_define_file              0x03
#define DW_LNE_set_discriminator        0x04  /* DWARF4 */

#define DW_LANG_C89                     0x0001

#define DW_ATE_address                  0x1
#define DW_ATE_boolean                  0x2
#define DW_ATE_complex_float            0x3
#define DW_ATE_float                    0x4
#define DW_ATE_signed                   0x5
#define DW_ATE_signed_char              0x6
#define DW_ATE_unsigned                 0x7
#define DW_ATE_unsigned_char            0x8
#define DW_ATE_imaginary_float          0x9  /* DWARF3 */
#define DW_ATE_packed_decimal           0xa  /* DWARF3f */
#define DW_ATE_numeric_string           0xb  /* DWARF3f */
#define DW_ATE_edited                   0xc  /* DWARF3f */
#define DW_ATE_signed_fixed             0xd  /* DWARF3f */
#define DW_ATE_unsigned_fixed           0xe  /* DWARF3f */
#define DW_ATE_decimal_float            0xf  /* DWARF3f */

struct __attribute__((packed)) DwarfCompUnit
{
    uint32_t m_length;
    uint16_t m_version;
    uint32_t m_abbrev_offset;
    uint8_t m_addr_size;
};

struct __attribute__((packed)) DwarfPubHeader
{
    uint32_t m_length;
    uint16_t m_version;
    uint32_t m_debug_info_off;
    uint32_t m_debug_info_len;
};

#define DW_LNS_MAX DW_LNS_set_isa

struct __attribute__((packed)) DwarfLineNumHeader
{
    uint32_t m_length;
    uint16_t m_version;
    uint32_t m_hdr_length;
    uint8_t m_min_instr_len;
    uint8_t m_def_is_stmt;
    int8_t m_line_base;
    uint8_t m_line_range;
    uint8_t m_opcode_base;
    uint8_t m_std_num_arg[DW_LNS_MAX];
};

struct SymbolsInfo
{
    int lineNumber, ilOffset, nativeOffset, fileIndex;
    char fileName[2*MAX_PATH_FNAME];
};


class NotifyGdb
{
public:
    static void MethodCompiled(MethodDesc* MethodDescPtr);
    static void MethodDropped(MethodDesc* MethodDescPtr);
private:
    struct MemBuf
    {
        char* MemPtr;
        unsigned MemSize;
        MemBuf() : MemPtr(0), MemSize(0)
        {}
    };

    static bool BuildELFHeader(MemBuf& buf);
    static bool BuildSectionNameTable(MemBuf& buf);
    static bool BuildSectionTable(MemBuf& buf);
    static bool BuildDebugStrings(MemBuf& buf);
    static bool BuildDebugAbbrev(MemBuf& buf);    
    static bool BuildDebugInfo(MemBuf& buf);
    static bool BuildDebugPub(MemBuf& buf, const char* name, uint32_t size, uint32_t dieOffset);
    static bool BuildLineTable(MemBuf& buf, PCODE startAddr, SymbolsInfo* lines, unsigned nlines);
    static bool BuildFileTable(MemBuf& buf, SymbolsInfo* lines, unsigned nlines);
    static bool BuildLineProg(MemBuf& buf, PCODE startAddr, SymbolsInfo* lines, unsigned nlines);
    static bool FitIntoSpecialOpcode(int8_t line_shift, uint8_t addr_shift);
    static void IssueSetAddress(char*& ptr, PCODE addr);
    static void IssueEndOfSequence(char*& ptr);
    static void IssueSimpleCommand(char*& ptr, uint8_t command);
    static void IssueParamCommand(char*& ptr, uint8_t command, char* param, int param_len);
    static void IssueSpecialCommand(char*& ptr, int8_t line_shift, uint8_t addr_shift);
    static void SplitPathname(const char* path, const char*& pathName, const char*& fileName);
    static int Leb128Encode(uint32_t num, char* buf, int size);
    static int Leb128Encode(int32_t num, char* buf, int size);
};

#endif // #ifndef __GDBJIT_H__