blob: 9dfdd31cbec55bd674aab308cd38b39299a2c7ff [file] [log] [blame]
/*--------------------------------------------------------------------*/
/*--- Callgrind ---*/
/*--- events.c ---*/
/*--------------------------------------------------------------------*/
/*
This file is part of Callgrind, a Valgrind tool for call tracing.
Copyright (C) 2002-2008, Josef Weidendorfer (Josef.Weidendorfer@gmx.de)
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307, USA.
The GNU General Public License is contained in the file COPYING.
*/
#include "global.h"
#define MAX_EVENTTYPE 20
static EventType eventtype[MAX_EVENTTYPE];
static Int eventtype_count = 0;
EventType* CLG_(register_eventtype)(Char* name)
{
EventType* et;
if (eventtype_count == MAX_EVENTTYPE) {
VG_(printf)("\nMore than %d event types used!\n"
"Increase MAX_EVENTTYPE in ct_events.c and recomile this tool!\n",
MAX_EVENTTYPE);
VG_(tool_panic)("Too many event types requested.");
}
et = &(eventtype[eventtype_count]);
et->id = eventtype_count;
et->name = (UChar*) VG_(strdup)("cl.events.re.1", name);
et->description = 0;
eventtype_count++;
return et;
}
EventType* CLG_(get_eventtype)(Char* name)
{
Int i;
for(i=0;i<eventtype_count;i++)
if (VG_(strcmp)(eventtype[i].name, name) == 0)
return eventtype+i;
return 0;
}
EventType* CLG_(get_eventtype_byindex)(Int id)
{
if ((id >= 0) && (id < eventtype_count))
return eventtype+id;
return 0;
}
/* Allocate space for an event set */
EventSet* CLG_(get_eventset)(Char* n, Int capacity)
{
EventSet* es;
es = (EventSet*) CLG_MALLOC("cl.events.geSet.1",
sizeof(EventSet) +
capacity * sizeof(EventSetEntry));
es->capacity = capacity;
es->size = 0;
es->name = n;
return es;
}
/* Incorporate a event type into a set, get start offset */
Int CLG_(add_eventtype)(EventSet* es, EventType* t)
{
Int offset = es->size;
if (es->capacity - offset < 1) return -1;
es->size++;
es->e[offset].type = t;
es->e[offset].nextTop = es->size;
return offset;
}
/* Incorporate one event set into another, get start offset */
Int CLG_(add_eventset)(EventSet* dst, EventSet* src)
{
Int offset = dst->size, i;
if (!src || (src->size == 0)) return offset;
if (dst->capacity - offset < src->size) return -1;
for(i=0;i<src->size;i++) {
dst->e[offset+i].type = src->e[i].type;
dst->e[offset+i].nextTop = src->e[i].nextTop + offset;
}
dst->size += src->size;
return offset;
}
/* Incorporate two event types into a set, with second < first */
Int CLG_(add_dep_event2)(EventSet* es, EventType* e1, EventType* e2)
{
Int offset = es->size;
if (es->capacity - offset < 2) return -1;
es->size += 2;
es->e[offset].type = e1;
es->e[offset].nextTop = es->size;
es->e[offset+1].type = e2;
es->e[offset+1].nextTop = es->size;
return offset;
}
/* Incorporate 3 event types into a set, with third < second < first */
Int CLG_(add_dep_event3)(EventSet* es,
EventType* e1, EventType* e2, EventType* e3)
{
Int offset = es->size;
if (es->capacity - offset < 3) return -1;
es->size += 3;
es->e[offset].type = e1;
es->e[offset].nextTop = es->size;
es->e[offset+1].type = e2;
es->e[offset+1].nextTop = es->size;
es->e[offset+2].type = e3;
es->e[offset+2].nextTop = es->size;
return offset;
}
Int CLG_(add_dep_event4)(EventSet* es,
EventType* e1, EventType* e2,
EventType* e3, EventType* e4)
{
Int offset = es->size;
if (es->capacity - offset < 4) return -1;
es->size += 4;
es->e[offset].type = e1;
es->e[offset].nextTop = es->size;
es->e[offset+1].type = e2;
es->e[offset+1].nextTop = es->size;
es->e[offset+2].type = e3;
es->e[offset+2].nextTop = es->size;
es->e[offset+3].type = e4;
es->e[offset+3].nextTop = es->size;
return offset;
}
/* Returns number of characters written */
Int CLG_(sprint_eventset)(Char* buf, EventSet* es)
{
Int i, pos = 0;
for(i=0; i< es->size; i++) {
if (pos>0) buf[pos++] = ' ';
pos += VG_(sprintf)(buf + pos, "%s", es->e[i].type->name);
}
buf[pos] = 0;
return pos;
}
/* Get cost array for an event set */
ULong* CLG_(get_eventset_cost)(EventSet* es)
{
return CLG_(get_costarray)(es->capacity);
}
/* Set all costs of an event set to zero */
void CLG_(init_cost)(EventSet* es, ULong* cost)
{
Int i;
if (!cost) return;
for(i=0;i<es->capacity;i++)
cost[i] = 0;
}
/* Set all costs of an event set to zero */
void CLG_(init_cost_lz)(EventSet* es, ULong** cost)
{
Int i;
CLG_ASSERT(cost != 0);
if (!(*cost))
*cost = CLG_(get_eventset_cost)(es);
for(i=0;i<es->capacity;i++)
(*cost)[i] = 0;
}
void CLG_(zero_cost)(EventSet* es, ULong* cost)
{
Int i;
if (!cost) return;
for(i=0;i<es->size;i++)
cost[i] = 0;
}
Bool CLG_(is_zero_cost)(EventSet* es, ULong* cost)
{
Int i = 0;
if (!cost) return True;
while(i<es->size) {
if (cost[i] != 0) return False;
i = es->e[i].nextTop;
}
return True;
}
Bool CLG_(is_equal_cost)(EventSet* es, ULong* c1, ULong* c2)
{
Int i = 0;
if (!c1) return CLG_(is_zero_cost)(es,c2);
if (!c2) return CLG_(is_zero_cost)(es,c1);
while(i<es->size) {
if (c1[i] != c2[i]) return False;
if (c1[i] == 0)
i = es->e[i].nextTop;
else
i++;
}
return True;
}
void CLG_(copy_cost)(EventSet* es, ULong* dst, ULong* src)
{
Int i;
if (!src) {
CLG_(zero_cost)(es, dst);
return;
}
CLG_ASSERT(dst != 0);
for(i=0;i<es->size;i++)
dst[i] = src[i];
}
void CLG_(copy_cost_lz)(EventSet* es, ULong** pdst, ULong* src)
{
Int i;
ULong* dst;
CLG_ASSERT(pdst != 0);
if (!src) {
CLG_(zero_cost)(es, *pdst);
return;
}
dst = *pdst;
if (!dst)
dst = *pdst = CLG_(get_eventset_cost)(es);
for(i=0;i<es->size;i++)
dst[i] = src[i];
}
void CLG_(add_cost)(EventSet* es, ULong* dst, ULong* src)
{
Int i = 0;
if (!src) return;
CLG_ASSERT(dst != 0);
while(i<es->size) {
if (src[i] == 0)
i = es->e[i].nextTop;
else {
dst[i] += src[i];
i++;
}
}
}
void CLG_(add_cost_lz)(EventSet* es, ULong** pdst, ULong* src)
{
Int i;
ULong* dst;
if (!src) return;
CLG_ASSERT(pdst != 0);
dst = *pdst;
if (!dst) {
dst = *pdst = CLG_(get_eventset_cost)(es);
CLG_(copy_cost)(es,dst,src);
return;
}
i = 0;
while(i<es->size) {
if (src[i] == 0)
i = es->e[i].nextTop;
else {
dst[i] += src[i];
i++;
}
}
}
/* Adds src to dst and zeros src. Returns false if nothing changed */
Bool CLG_(add_and_zero_cost)(EventSet* es, ULong* dst, ULong* src)
{
Int i = 0, j = 0;
CLG_DEBUGIF(6) {
CLG_DEBUG(6, " add_and_zero_cost(%s, dst %p, src %p)\n", es->name, dst, src);
CLG_(print_cost)(-5, es, src);
}
if (!es || !src) return False;
while(i<es->size) {
if (src[i] == 0)
i = es->e[i].nextTop;
else {
dst[i] += src[i];
src[i] = 0;
i++;
j++;
}
}
return (j>0);
}
/* Adds src to dst and zeros src. Returns false if nothing changed */
Bool CLG_(add_and_zero_cost_lz)(EventSet* es, ULong** pdst, ULong* src)
{
Int i;
ULong* dst;
if (!src) return False;
i = 0;
while(1) {
if (i >= es->size) return False;
if (src[i] != 0) break;
i = es->e[i].nextTop;
}
CLG_ASSERT(pdst != 0);
dst = *pdst;
if (!dst) {
dst = *pdst = CLG_(get_eventset_cost)(es);
CLG_(copy_cost)(es,dst,src);
CLG_(zero_cost)(es,src);
return True;
}
dst[i] += src[i];
src[i] = 0;
i++;
while(i<es->size) {
if (src[i] == 0)
i = es->e[i].nextTop;
else {
dst[i] += src[i];
src[i] = 0;
}
}
return True;
}
/* Adds difference of new and old to dst, and set old to new.
* Returns false if nothing changed */
Bool CLG_(add_diff_cost)(EventSet* es, ULong* dst, ULong* old, ULong* new)
{
Int i = 0, j = 0;
while(i<es->size) {
if (new[i] == old[i])
i = es->e[i].nextTop;
else {
dst[i] += new[i] - old[i];
old[i] = new[i];
i++;
j++;
}
}
return (j>0);
}
/* Adds difference of new and old to dst, and set old to new.
* Returns false if nothing changed */
Bool CLG_(add_diff_cost_lz)(EventSet* es, ULong** pdst,
ULong* old, ULong* new)
{
Int i;
ULong* dst;
if (!old && !new) return False;
CLG_ASSERT(old && new);
i = 0;
while(1) {
if (i >= es->size) return False;
if (old[i] != new[i]) break;
i = es->e[i].nextTop;
}
CLG_ASSERT(pdst != 0);
dst = *pdst;
if (!dst) {
dst = *pdst = CLG_(get_eventset_cost)(es);
CLG_(zero_cost)(es,dst);
}
dst[i] += new[i] - old[i];
old[i] = new[i];
i++;
while(i<es->size) {
if (new[i] == old[i])
i = es->e[i].nextTop;
else {
dst[i] += new[i] - old[i];
old[i] = new[i];
i++;
}
}
return True;
}
/* Returns number of characters written */
Int CLG_(sprint_cost)(Char* buf, EventSet* es, ULong* c)
{
Int i, pos, skipped = 0;
if (!c || es->size==0) return 0;
/* At least one entry */
pos = VG_(sprintf)(buf, "%llu", c[0]);
i = 1;
while(i<es->size) {
if (c[i] == 0) {
skipped += es->e[i].nextTop - i;
i = es->e[i].nextTop;
}
else {
while(skipped>0) {
buf[pos++] = ' ';
buf[pos++] = '0';
skipped--;
}
buf[pos++] = ' ';
pos += VG_(sprintf)(buf+pos, "%llu", c[i]);
i++;
}
}
return pos;
}
/* Allocate space for an event mapping */
EventMapping* CLG_(get_eventmapping)(EventSet* es)
{
EventMapping* em;
CLG_ASSERT(es != 0);
em = (EventMapping*) CLG_MALLOC("cl.events.geMapping.1",
sizeof(EventMapping) +
es->capacity * sizeof(Int));
em->capacity = es->capacity;
em->size = 0;
em->set = es;
return em;
}
void CLG_(append_event)(EventMapping* em, Char* n)
{
Int i;
CLG_ASSERT(em != 0);
for(i=0; i<em->set->size; i++)
if (VG_(strcmp)(n, em->set->e[i].type->name)==0)
break;
if (i == em->set->size) return;
CLG_ASSERT(em->capacity > em->size);
em->index[em->size] = i;
em->size++;
}
/* Returns number of characters written */
Int CLG_(sprint_eventmapping)(Char* buf, EventMapping* em)
{
Int i, pos = 0;
CLG_ASSERT(em != 0);
for(i=0; i< em->size; i++) {
if (pos>0) buf[pos++] = ' ';
pos += VG_(sprintf)(buf + pos, "%s", em->set->e[em->index[i]].type->name);
}
buf[pos] = 0;
return pos;
}
/* Returns number of characters written */
Int CLG_(sprint_mappingcost)(Char* buf, EventMapping* em, ULong* c)
{
Int i, pos, skipped = 0;
if (!c || em->size==0) return 0;
/* At least one entry */
pos = VG_(sprintf)(buf, "%llu", c[em->index[0]]);
i = 1;
while(i<em->size) {
if (c[em->index[i]] == 0) {
skipped++;
i++;
}
else {
while(skipped>0) {
buf[pos++] = ' ';
buf[pos++] = '0';
skipped--;
}
buf[pos++] = ' ';
pos += VG_(sprintf)(buf+pos, "%llu", c[em->index[i]]);
i++;
}
}
return pos;
}