jvm.h File Reference

#include <rz_types.h>
#include <rz_util.h>
#include "bytecode.h"

Go to the source code of this file.

Classes
struct	jvm_t

Typedefs
typedef struct jvm_t	JavaVM

Functions
void	bytecode_snprint (RzStrBuf *sb, Bytecode *bytecode)
void	bytecode_clean (Bytecode *bytecode)
bool	jvm_init (JavaVM *jvm, const ut8 *buffer, const ut32 size, ut64 pc, ut64 section)
bool	jvm_fetch (JavaVM *jvm, Bytecode *bytecode)

Typedef Documentation

JavaVM

typedef struct jvm_t JavaVM

Function Documentation

bytecode_clean()

void bytecode_clean

(

Bytecode *

bytecode

)

Definition at line 1536 of file jvm.c.

                                        {
    rz_return_if_fail(bytecode);
    free(bytecode->extra);
}

References bytecode_t::extra, free(), and rz_return_if_fail.

Referenced by java_analysis(), and java_disassemble().

bytecode_snprint()

void bytecode_snprint	(	RzStrBuf *	sb,
		Bytecode *	bytecode
	)

Definition at line 1458 of file jvm.c.

                                                        {
    rz_return_if_fail(sb && bytecode);
    ut64 address;
    if (bytecode->opcode == BYTECODE_AA_TABLESWITCH) {
        rz_return_if_fail(bytecode->extra);
        TableSwitch *ts = (TableSwitch *)bytecode->extra;
 
        address = bytecode->pc + ts->pc_default;
        rz_strbuf_setf(sb, "%s default: 0x%" PFMT64x, bytecode->name, address);
    } else if (bytecode->opcode == BYTECODE_AB_LOOKUPSWITCH) {
        rz_return_if_fail(bytecode->extra);
        LookupSwitch *ls = (LookupSwitch *)bytecode->extra;
 
        address = bytecode->pc + ls->pc_default;
        rz_strbuf_setf(sb, "%s default: 0x%" PFMT64x, bytecode->name, address);
    } else if (bytecode->type[0] > 0 && !bytecode->type[1]) {
        if (bytecode->type[0] == BYTECODE_TYPE_NUMBER) {
            rz_strbuf_setf(sb, "%s %d", bytecode->name, bytecode->args[0]);
        } else if (bytecode->type[0] == BYTECODE_TYPE_CONST_POOL) {
            rz_strbuf_setf(sb, "%s " JAVA_ASM_CONSTANT_POOL_STR "%u", bytecode->name, bytecode->args[0]);
        } else if (bytecode->type[0] == BYTECODE_TYPE_ADDRESS) {
            address = bytecode->pc + bytecode->args[0];
            rz_strbuf_setf(sb, "%s 0x%" PFMT64x, bytecode->name, address);
        } else if (bytecode->type[0] == BYTECODE_TYPE_ATYPE) {
            const char *type = NULL;
            switch (bytecode->args[0]) {
            case 4:
                type = "bool";
                break;
            case 5:
                type = "char";
                break;
            case 6:
                type = "float";
                break;
            case 7:
                type = "double";
                break;
            case 8:
                type = "byte";
                break;
            case 9:
                type = "short";
                break;
            case 10:
                type = "int";
                break;
            case 11:
                type = "long";
                break;
            default:
                break;
            }
            if (type) {
                rz_strbuf_setf(sb, "%s %s", bytecode->name, type);
            } else {
                rz_strbuf_setf(sb, "%s unknown_type_%u", bytecode->name, bytecode->args[0]);
            }
        } else {
            rz_strbuf_setf(sb, "%s %u", bytecode->name, bytecode->args[0]);
            rz_warn_if_reached();
        }
    } else if (bytecode->type[0] > 0 && bytecode->type[1] > 0) {
        if (bytecode->type[0] == BYTECODE_TYPE_NUMBER &&
            bytecode->type[1] == BYTECODE_TYPE_NUMBER) {
            rz_strbuf_setf(sb, "%s %d %d", bytecode->name, bytecode->args[0], bytecode->args[1]);
        } else if (bytecode->type[0] == BYTECODE_TYPE_CONST_POOL &&
            bytecode->type[1] == BYTECODE_TYPE_NUMBER) {
            rz_strbuf_setf(sb, "%s " JAVA_ASM_CONSTANT_POOL_STR "%u %d", bytecode->name, bytecode->args[0], bytecode->args[1]);
        } else {
            rz_strbuf_setf(sb, "%s %d %d", bytecode->name, bytecode->args[0], bytecode->args[1]);
            rz_warn_if_reached();
        }
    } else {
        rz_strbuf_setf(sb, "%s", bytecode->name);
    }
}

References bytecode_t::args, BYTECODE_AA_TABLESWITCH, BYTECODE_AB_LOOKUPSWITCH, BYTECODE_TYPE_ADDRESS, BYTECODE_TYPE_ATYPE, BYTECODE_TYPE_CONST_POOL, BYTECODE_TYPE_NUMBER, bytecode_t::extra, JAVA_ASM_CONSTANT_POOL_STR, bytecode_t::name, NULL, bytecode_t::opcode, bytecode_t::pc, tableswitch_t::pc_default, lookupswitch_t::pc_default, PFMT64x, rz_return_if_fail, rz_strbuf_setf(), rz_warn_if_reached, sb, bytecode_t::type, type, and ut64().

Referenced by java_disassemble().

jvm_fetch()

bool jvm_fetch	(	JavaVM *	jvm,
		Bytecode *	bytecode
	)

Definition at line 1553 of file jvm.c.

                                                {
    rz_return_val_if_fail(jvm && bytecode, false);
 
    return decode_instruction(jvm, bytecode);
}

References decode_instruction(), and rz_return_val_if_fail.

Referenced by java_analysis(), and java_disassemble().

jvm_init()

bool jvm_init	(	JavaVM *	jvm,
		const ut8 *	buffer,
		const ut32	size,
		ut64	pc,
		ut64	section
	)

Definition at line 1541 of file jvm.c.

                                                                                      {
    rz_return_val_if_fail(jvm && buffer && size > 0, false);
 
    jvm->buffer = buffer;
    jvm->size = size;
    jvm->current = 0;
    jvm->pc = pc;
    jvm->section = section;
 
    return true;
}

References jvm_t::buffer, jvm_t::current, jvm_t::pc, pc, rz_return_val_if_fail, jvm_t::section, and jvm_t::size.

Referenced by java_analysis(), and java_disassemble().