/*
* trace inspection (instrumentation function)
*
* traverse the basic blocks (BBLs) on the trace and
* inspect every instruction for instrumenting it
* accordingly
*
* @trace: instructions trace; given by PIN
* @v: callback value
*/
static void
trace_inspect(TRACE trace, VOID *v)
{
/* iterators */
BBL bbl;
INS ins;
xed_iclass_enum_t ins_indx;
/* versioning support */
ADDRINT version, version_mask = (ADDRINT)v;
if (version_mask) {
/*
* ignore code cache versions that we
* are not supposed to instrument
*/
version = TRACE_Version(trace);
if ((version & version_mask) == 0)
return;
}
/* traverse all the BBLs in the trace */
for (bbl = TRACE_BblHead(trace); BBL_Valid(bbl); bbl = BBL_Next(bbl)) {
/* traverse all the instructions in the BBL */
for (ins = BBL_InsHead(bbl);
INS_Valid(ins);
ins = INS_Next(ins)) {
/*
* use XED to decode the instruction and
* extract its opcode
*/
ins_indx = (xed_iclass_enum_t)INS_Opcode(ins);
/*
* invoke the pre-ins instrumentation callback
*/
if (ins_desc[ins_indx].pre != NULL)
ins_desc[ins_indx].pre(ins);
/*
* analyze the instruction (default handler)
*/
if (ins_desc[ins_indx].dflact == INSDFL_ENABLE)
ins_inspect(ins);
/*
* invoke the post-ins instrumentation callback
*/
if (ins_desc[ins_indx].post != NULL)
ins_desc[ins_indx].post(ins);
}
}
}
/*
* trace inspection (instrumentation function)
*
* traverse the basic blocks (BBLs) on the trace and
* inspect every instruction for instrumenting it
* accordingly
*
* @trace: instructions trace; given by PIN
* @v: callback value
*/
static void
trace_inspect(TRACE trace, VOID *v)
{
/* iterators */
BBL bbl;
INS ins;
xed_iclass_enum_t ins_indx;
//printf("dealing trace!\n");
/* traverse all the BBLs in the trace */
for (bbl = TRACE_BblHead(trace); BBL_Valid(bbl); bbl = BBL_Next(bbl)) {
/* traverse all the instructions in the BBL */
ins = BBL_InsHead(bbl);
for (ins = BBL_InsHead(bbl);
INS_Valid(ins);
ins = INS_Next(ins)) {
/*
* use XED to decode the instruction and
* extract its opcode
*/
ins_indx = (xed_iclass_enum_t)INS_Opcode(ins);
/*
* invoke the pre-ins instrumentation callback
*/
if (ins_desc[ins_indx].pre != NULL)
ins_desc[ins_indx].pre(ins);
/*
* analyze the instruction (default handler)
*/
if (ins_desc[ins_indx].dflact == INSDFL_ENABLE){
ins_inspect(ins);
//printf("dealing ins_inspect!\n");
}
/*
* invoke the post-ins instrumentation callback
*/
if (ins_desc[ins_indx].post != NULL)
ins_desc[ins_indx].post(ins);
}
}
}
