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/*! @file Target_i386.cc
* @brief Target_i386 Implementation
*
* This file contains the implementation of the base class for
* functions supporting target unique functionallity.
*/
#include "Target_i386.h"
#include "qemu-traces.h"
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
namespace Target {
Target_i386::Target_i386( std::string targetName ):
TargetBase( targetName )
{
conditionalBranchInstructions.push_back("ja");
conditionalBranchInstructions.push_back("jb");
conditionalBranchInstructions.push_back("jc");
conditionalBranchInstructions.push_back("je");
conditionalBranchInstructions.push_back("jg");
conditionalBranchInstructions.push_back("jl");
conditionalBranchInstructions.push_back("jo");
conditionalBranchInstructions.push_back("jp");
conditionalBranchInstructions.push_back("js");
conditionalBranchInstructions.push_back("jz");
conditionalBranchInstructions.push_back("jae");
conditionalBranchInstructions.push_back("jbe");
conditionalBranchInstructions.push_back("jge");
conditionalBranchInstructions.push_back("jle");
conditionalBranchInstructions.push_back("jne");
conditionalBranchInstructions.push_back("jna");
conditionalBranchInstructions.push_back("jnb");
conditionalBranchInstructions.push_back("jnc");
conditionalBranchInstructions.push_back("jne");
conditionalBranchInstructions.push_back("jng");
conditionalBranchInstructions.push_back("jnl");
conditionalBranchInstructions.push_back("jno");
conditionalBranchInstructions.push_back("jnp");
conditionalBranchInstructions.push_back("jns");
conditionalBranchInstructions.push_back("jnz");
conditionalBranchInstructions.push_back("jpe");
conditionalBranchInstructions.push_back("jpo");
conditionalBranchInstructions.push_back("jnbe");
conditionalBranchInstructions.push_back("jnae");
conditionalBranchInstructions.push_back("jnle");
conditionalBranchInstructions.push_back("jnge");
conditionalBranchInstructions.sort();
}
Target_i386::~Target_i386()
{
}
bool Target_i386::isNopLine(
const char* const line,
int& size
)
{
if (!strcmp( &line[strlen(line)-3], "nop")) {
size = 1;
return true;
}
// i386 has some two and three byte nops
if (!strncmp( &line[strlen(line)-14], "xchg %ax,%ax", 14)) {
size = 2;
return true;
}
if (!strncmp( &line[strlen(line)-16], "xor %eax,%eax", 16)) {
size = 2;
return true;
}
if (!strncmp( &line[strlen(line)-16], "xor %ebx,%ebx", 16)) {
size = 2;
return true;
}
if (!strncmp( &line[strlen(line)-16], "xor %esi,%esi", 16)) {
size = 2;
return true;
}
if (!strncmp( &line[strlen(line)-21], "lea 0x0(%esi),%esi", 21)) {
size = 3;
return true;
}
if (!strncmp( &line[strlen(line)-28], "lea 0x0(%esi,%eiz,1),%esi", 28)) {
// Could be 4 or 7 bytes of padding.
if (!strncmp( &line[strlen(line)-32], "00", 2)) {
size = 7;
} else {
size = 4;
}
return true;
}
return false;
}
uint8_t Target_i386::qemuTakenBit(void)
{
return TRACE_OP_BR1;
}
uint8_t Target_i386::qemuNotTakenBit(void)
{
return TRACE_OP_BR0;
}
TargetBase *Target_i386_Constructor(
std::string targetName
)
{
return new Target_i386( targetName );
}
}
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