/*--------------------------------------------------------------------*/
/*--- A program that merges multiple cachegrind output files. ---*/
/*--- cg_merge.c ---*/
/*--------------------------------------------------------------------*/
/*
This file is part of Cachegrind, a Valgrind tool for cache
profiling programs.
Copyright (C) 2002-2012 Nicholas Nethercote
njn@valgrind.org
AVL tree code derived from
ANSI C Library for maintainance of AVL Balanced Trees
(C) 2000 Daniel Nagy, Budapest University of Technology and Economics
Released under GNU General Public License (GPL) version 2
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 <stdio.h>
#include <stdlib.h>
#include <assert.h>
#include <string.h>
#include <ctype.h>
typedef signed long Word;
typedef unsigned long UWord;
typedef unsigned char Bool;
#define True ((Bool)1)
#define False ((Bool)0)
typedef signed int Int;
typedef unsigned int UInt;
typedef unsigned long long int ULong;
typedef signed char Char;
typedef size_t SizeT;
//------------------------------------------------------------------//
//--- WordFM ---//
//--- Public interface ---//
//------------------------------------------------------------------//
typedef struct _WordFM WordFM; /* opaque */
/* Initialise a WordFM */
void initFM ( WordFM* t,
void* (*alloc_nofail)( SizeT ),
void (*dealloc)(void*),
Word (*kCmp)(Word,Word) );
/* Allocate and initialise a WordFM */
WordFM* newFM( void* (*alloc_nofail)( SizeT ),
void (*dealloc)(void*),
Word (*kCmp)(Word,Word) );
/* Free up the FM. If kFin is non-NULL, it is applied to keys
before the FM is deleted; ditto with vFin for vals. */
void deleteFM ( WordFM*, void(*kFin)(Word), void(*vFin)(Word) );
/* Add (k,v) to fm. If a binding for k already exists, it is updated
to map to this new v. In that case we should really return the
previous v so that caller can finalise it. Oh well. */
void addToFM ( WordFM* fm, Word k, Word v );
// Delete key from fm, returning associated val if found
Bool delFromFM ( WordFM* fm, /*OUT*/Word* oldV, Word key );
// Look up in fm, assigning found val at spec'd address
Bool lookupFM ( WordFM* fm, /*OUT*/Word* valP, Word key );
Word sizeFM ( WordFM* fm );
// set up FM for iteration
void initIterFM ( WordFM* fm );
// get next key/val pair. Will assert if fm has been modified
// or looked up in since initIterFM was called.
Bool nextIterFM ( WordFM* fm, /*OUT*/Word* pKey, /*OUT*/Word* pVal );
// clear the I'm iterating flag
void doneIterFM ( WordFM* fm );
// Deep copy a FM. If dopyK is NULL, keys are copied verbatim.
// If non-null, dopyK is applied to each key to generate the
// version in the new copy. In that case, if the argument to dopyK
// is non-NULL but the result is NULL, it is assumed that dopyK
// could not allocate memory, in which case the copy is abandoned
// and NULL is returned. Ditto with dopyV for values.
WordFM* dopyFM ( WordFM* fm, Word(*dopyK)(Word), Word(*dopyV)(Word) );
//------------------------------------------------------------------//
//--- end WordFM ---//
//--- Public interface ---//
//------------------------------------------------------------------//
static char* argv0 = "cg_merge";
/* Keep track of source filename/line no so as to be able to
print decent error messages. */
typedef
struct {
FILE* fp;
UInt lno;
char* filename;
}
SOURCE;
static void printSrcLoc ( SOURCE* s )
{
fprintf(stderr, "%s: near %s line %u\n", argv0, s->filename, s->lno-1);
}
__attribute__((noreturn))
static void mallocFail ( SOURCE* s, char* who )
{
fprintf(stderr, "%s: out of memory in %s\n", argv0, who );
printSrcLoc( s );
exit(2);
}
__attribute__((noreturn))
static void parseError ( SOURCE* s, char* msg )
{
fprintf(stderr, "%s: parse error: %s\n", argv0, msg );
printSrcLoc( s );
exit(1);
}
__attribute__((noreturn))
static void barf ( SOURCE* s, char* msg )
{
fprintf(stderr, "%s: %s\n", argv0, msg );
printSrcLoc( s );
exit(1);
}
// Read a line
#define M_LINEBUF 40960
static char line[M_LINEBUF];
// True if anything read, False if at EOF
static Bool readline ( SOURCE* s )
{
int ch, i = 0;
line[0] = 0;
while (1) {
if (i >= M_LINEBUF-10)
parseError(s, "Unexpected long line in input file");
ch = getc(s->fp);
if (ch != EOF) {
line[i++] = ch;
line[i] = 0;
if (ch == '\n') {
line[i-1] = 0;
s->lno++;
break;
}
} else {
if (ferror(s->fp)) {
perror(argv0);
barf(s, "I/O error while reading input file");
} else {
// hit EOF
break;
}
}
}
return line[0] != 0;
}
static Bool streqn ( char* s1, char* s2, size_t n )
{
return 0 == strncmp(s1, s2, n);
}
static Bool streq ( char* s1, char* s2 )
{
return 0 == strcmp(s1, s2 );
}
////////////////////////////////////////////////////////////////
typedef
struct {
char* fi_name;
char* fn_name;
}
FileFn;
typedef
struct {
Int n_counts;
ULong* counts;
}
Counts;
typedef
struct {
// null-terminated vector of desc_lines
char** desc_lines;
// Cmd line
char* cmd_line;
// Events line
char* events_line;
Int n_events;
// Summary line (copied from input)
char* summary_line;
/* Outermost map is
WordFM FileFn* innerMap
where innerMap is WordFM line-number=UWord Counts */
WordFM* outerMap;
// Summary counts (computed whilst parsing)
// should match .summary_line
Counts* summary;
}
CacheProfFile;
static FileFn* new_FileFn ( char* file_name, char* fn_name )
{
FileFn* ffn = malloc(sizeof(FileFn));
if (ffn == NULL)
return NULL;
ffn->fi_name = file_name;
ffn->fn_name = fn_name;
return ffn;
}
static void ddel_FileFn ( FileFn* ffn )
{
if (ffn->fi_name)
free(ffn->fi_name);
if (ffn->fn_name)
free(ffn->fn_name);
memset(ffn, 0, sizeof(FileFn));
free(ffn);
}
static FileFn* dopy_FileFn ( FileFn* ff )
{
char* fi2 = strdup(ff->fi_name);
char* fn2 = strdup(ff->fn_name);
if ((!fi2) || (!fn2))
return NULL;
return new_FileFn( fi2, fn2 );
}
static Counts* new_Counts ( Int n_counts, /*COPIED*/ULong* counts )
{
Int i;
Counts* cts = malloc(sizeof(Counts));
if (cts == NULL)
return NULL;
assert(n_counts >= 0);
cts->counts = malloc(n_counts * sizeof(ULong));
if (cts->counts == NULL)
return NULL;
cts->n_counts = n_counts;
for (i = 0; i < n_counts; i++)
cts->counts[i] = counts[i];
return cts;
}
static Counts* new_Counts_Zeroed ( Int n_counts )
{
Int i;
Counts* cts = malloc(sizeof(Counts));
if (cts == NULL)
return NULL;
assert(n_counts >= 0);
cts->counts = malloc(n_counts * sizeof(ULong));
if (cts->counts == NULL)
return NULL;
cts->n_counts = n_counts;
for (i = 0; i < n_counts; i++)
cts->counts[i] = 0;
return cts;
}
static void sdel_Counts ( Counts* cts )
{
memset(cts, 0, sizeof(Counts));
free(cts);
}
static void ddel_Counts ( Counts* cts )
{
if (cts->counts)
free(cts->counts);
memset(cts, 0, sizeof(Counts));
free(cts);
}
static Counts* dopy_Counts ( Counts* cts )
{
return new_Counts( cts->n_counts, cts->counts );
}
static
CacheProfFile* new_CacheProfFile ( char** desc_lines,
char* cmd_line,
char* events_line,
Int n_events,
char* summary_line,
WordFM* outerMap,
Counts* summary )
{
CacheProfFile* cpf = malloc(sizeof(CacheProfFile));
if (cpf == NULL)
return NULL;
cpf->desc_lines = desc_lines;
cpf->cmd_line = cmd_line;
cpf->events_line = events_line;
cpf->n_events = n_events;
cpf->summary_line = summary_line;
cpf->outerMap = outerMap;
cpf->summary = summary;
return cpf;
}
static WordFM* dopy_InnerMap ( WordFM* innerMap )
{
return dopyFM ( innerMap, NULL,
(Word(*)(Word))dopy_Counts );
}
static void ddel_InnerMap ( WordFM* innerMap )
{
deleteFM( innerMap, NULL, (void(*)(Word))ddel_Counts );
}
static void ddel_CacheProfFile ( CacheProfFile* cpf )
{
char** p;
if (cpf->desc_lines) {
for (p = cpf->desc_lines; *p; p++)
free(*p);
free(cpf->desc_lines);
}
if (cpf->cmd_line)
free(cpf->cmd_line);
if (cpf->events_line)
free(cpf->events_line);
if (cpf->summary_line)
free(cpf->summary_line);
if (cpf->outerMap)
deleteFM( cpf->outerMap, (void(*)(Word))ddel_FileFn,
(void(*)(Word))ddel_InnerMap );
if (cpf->summary)
ddel_Counts(cpf->summary);
memset(cpf, 0, sizeof(CacheProfFile));
free(cpf);
}
static void showCounts ( FILE* f, Counts* c )
{
Int i;
for (i = 0; i < c->n_counts; i++) {
fprintf(f, "%lld ", c->counts[i]);
}
}
static void show_CacheProfFile ( FILE* f, CacheProfFile* cpf )
{
Int i;
char** d;
FileFn* topKey;
WordFM* topVal;
UWord subKey;
Counts* subVal;
for (d = cpf->desc_lines; *d; d++)
fprintf(f, "%s\n", *d);
fprintf(f, "%s\n", cpf->cmd_line);
fprintf(f, "%s\n", cpf->events_line);
initIterFM( cpf->outerMap );
while (nextIterFM( cpf->outerMap, (Word*)(&topKey), (Word*)(&topVal) )) {
fprintf(f, "fl=%s\nfn=%s\n",
topKey->fi_name, topKey->fn_name );
initIterFM( topVal );
while (nextIterFM( topVal, (Word*)(&subKey), (Word*)(&subVal) )) {
fprintf(f, "%ld ", subKey );
showCounts( f, subVal );
fprintf(f, "\n");
}
doneIterFM( topVal );
}
doneIterFM( cpf->outerMap );
//fprintf(f, "%s\n", cpf->summary_line);
fprintf(f, "summary:");
for (i = 0; i < cpf->summary->n_counts; i++)
fprintf(f, " %lld", cpf->summary->counts[i]);
fprintf(f, "\n");
}
////////////////////////////////////////////////////////////////
static Word cmp_FileFn ( Word s1, Word s2 )
{
FileFn* ff1 = (FileFn*)s1;
FileFn* ff2 = (FileFn*)s2;
Word r = strcmp(ff1->fi_name, ff2->fi_name);
if (r == 0)
r = strcmp(ff1->fn_name, ff2->fn_name);
return r;
}
static Word cmp_unboxed_UWord ( Word s1, Word s2 )
{
UWord u1 = (UWord)s1;
UWord u2 = (UWord)s2;
if (u1 < u2) return -1;
if (u1 > u2) return 1;
return 0;
}
////////////////////////////////////////////////////////////////
static Bool parse_ULong ( /*OUT*/ULong* res, /*INOUT*/char** pptr)
{
ULong u64;
char* ptr = *pptr;
while (isspace(*ptr)) ptr++;
if (!isdigit(*ptr)) {
return False; /* end of string, or junk */
*pptr = ptr;
}
u64 = 0;
while (isdigit(*ptr)) {
u64 = (u64 * 10) + (ULong)(*ptr - '0');
ptr++;
}
*res = u64;
*pptr = ptr;
return True;
}
// str is a line of digits, starting with a line number. Parse it,
// returning the first number in *lnno and the rest in a newly
// allocated Counts struct. If lnno is non-NULL, treat the first
// number as a line number and assign it to *lnno instead of
// incorporating it in the counts array.
static
Counts* splitUpCountsLine ( SOURCE* s, /*OUT*/UWord* lnno, char* str )
{
#define N_TMPC 50
Bool ok;
Counts* counts;
ULong tmpC[N_TMPC];
Int n_tmpC = 0;
while (1) {
ok = parse_ULong( &tmpC[n_tmpC], &str );
if (!ok)
break;
n_tmpC++;
if (n_tmpC >= N_TMPC)
barf(s, "N_TMPC too low. Increase and recompile.");
}
if (*str != 0)
parseError(s, "garbage in counts line");
if (lnno ? (n_tmpC < 2) : (n_tmpC < 1))
parseError(s, "too few counts in count line");
if (lnno) {
*lnno = (UWord)tmpC[0];
counts = new_Counts( n_tmpC-1, /*COPIED*/&tmpC[1] );
} else {
counts = new_Counts( n_tmpC, /*COPIED*/&tmpC[0] );
}
return counts;
#undef N_TMPC
}
static void addCounts ( SOURCE* s, /*OUT*/Counts* counts1, Counts* counts2 )
{
Int i;
if (counts1->n_counts != counts2->n_counts)
parseError(s, "addCounts: inconsistent number of counts");
for (i = 0; i < counts1->n_counts; i++)
counts1->counts[i] += counts2->counts[i];
}
static Bool addCountsToMap ( SOURCE* s,
WordFM* counts_map,
UWord lnno, Counts* newCounts )
{
Counts* oldCounts;
// look up lnno in the map. If none present, add a binding
// lnno->counts. If present, add counts to the existing entry.
if (lookupFM( counts_map, (Word*)(&oldCounts), (Word)lnno )) {
// merge with existing binding
addCounts( s, oldCounts, newCounts );
return True;
} else {
// create new binding
addToFM( counts_map, (Word)lnno, (Word)newCounts );
return False;
}
}
static
void handle_counts ( SOURCE* s,
CacheProfFile* cpf,
char* fi, char* fn, char* newCountsStr )
{
WordFM* countsMap;
Bool freeNewCounts;
UWord lnno;
Counts* newCounts;
FileFn* topKey;
if (0) printf("%s %s %s\n", fi, fn, newCountsStr );
// parse the numbers
newCounts = splitUpCountsLine( s, &lnno, newCountsStr );
// Did we get the right number?
if (newCounts->n_counts != cpf->n_events)
goto oom;
// allocate the key
topKey = malloc(sizeof(FileFn));
if (topKey) {
topKey->fi_name = strdup(fi);
topKey->fn_name = strdup(fn);
}
if (! (topKey && topKey->fi_name && topKey->fn_name))
mallocFail(s, "handle_counts:");
// search for it
if (lookupFM( cpf->outerMap, (Word*)(&countsMap), (Word)topKey )) {
// found it. Merge in new counts
freeNewCounts = addCountsToMap( s, countsMap, lnno, newCounts );
ddel_FileFn(topKey);
} else {
// not found in the top map. Create new entry
countsMap = newFM( malloc, free, cmp_unboxed_UWord );
if (!countsMap)
goto oom;
addToFM( cpf->outerMap, (Word)topKey, (Word)countsMap );
freeNewCounts = addCountsToMap( s, countsMap, lnno, newCounts );
}
// also add to running summary total
addCounts( s, cpf->summary, newCounts );
// if safe to do so, free up the count vector
if (freeNewCounts)
ddel_Counts(newCounts);
return;
oom:
parseError(s, "# counts doesn't match # events");
}
/* Parse a complete file from the stream in 's'. If a parse error
happens, do not return; instead exit via parseError(). If an
out-of-memory condition happens, do not return; instead exit via
mallocError().
*/
static CacheProfFile* parse_CacheProfFile ( SOURCE* s )
{
#define M_TMP_DESCLINES 10
Int i;
Bool b;
char* tmp_desclines[M_TMP_DESCLINES];
char* p;
int n_tmp_desclines = 0;
CacheProfFile* cpf;
Counts* summaryRead;
char* curr_fn_init = "???";
char* curr_fl_init = "???";
char* curr_fn = curr_fn_init;
char* curr_fl = curr_fl_init;
cpf = new_CacheProfFile( NULL, NULL, NULL, 0, NULL, NULL, NULL );
if (cpf == NULL)
mallocFail(s, "parse_CacheProfFile(1)");
// Parse "desc:" lines
while (1) {
b = readline(s);
if (!b)
break;
if (!streqn(line, "desc: ", 6))
break;
if (n_tmp_desclines >= M_TMP_DESCLINES)
barf(s, "M_TMP_DESCLINES too low; increase and recompile");
tmp_desclines[n_tmp_desclines++] = strdup(line);
}
if (n_tmp_desclines == 0)
parseError(s, "parse_CacheProfFile: no DESC lines present");
cpf->desc_lines = malloc( (1+n_tmp_desclines) * sizeof(char*) );
if (cpf->desc_lines == NULL)
mallocFail(s, "parse_CacheProfFile(2)");
cpf->desc_lines[n_tmp_desclines] = NULL;
for (i = 0; i < n_tmp_desclines; i++)
cpf->desc_lines[i] = tmp_desclines[i];
// Parse "cmd:" line
if (!streqn(line, "cmd: ", 5))
parseError(s, "parse_CacheProfFile: no CMD line present");
cpf->cmd_line = strdup(line);
if (cpf->cmd_line == NULL)
mallocFail(s, "parse_CacheProfFile(3)");
// Parse "events:" line and figure out how many events there are
b = readline(s);
if (!b)
parseError(s, "parse_CacheProfFile: eof before EVENTS line");
if (!streqn(line, "events: ", 8))
parseError(s, "parse_CacheProfFile: no EVENTS line present");
// figure out how many events there are by counting the number
// of space-alphanum transitions in the events_line
cpf->events_line = strdup(line);
if (cpf->events_line == NULL)
mallocFail(s, "parse_CacheProfFile(3)");
cpf->n_events = 0;
assert(cpf->events_line[6] == ':');
for (p = &cpf->events_line[6]; *p; p++) {
if (p[0] == ' ' && isalpha(p[1]))
cpf->n_events++;
}
// create the running cross-check summary
cpf->summary = new_Counts_Zeroed( cpf->n_events );
if (cpf->summary == NULL)
mallocFail(s, "parse_CacheProfFile(4)");
// create the outer map (file+fn name --> inner map)
cpf->outerMap = newFM ( malloc, free, cmp_FileFn );
if (cpf->outerMap == NULL)
mallocFail(s, "parse_CacheProfFile(5)");
// process count lines
while (1) {
b = readline(s);
if (!b)
parseError(s, "parse_CacheProfFile: eof before SUMMARY line");
if (isdigit(line[0])) {
handle_counts(s, cpf, curr_fl, curr_fn, line);
continue;
}
else
if (streqn(line, "fn=", 3)) {
if (curr_fn != curr_fn_init)
free(curr_fn);
curr_fn = strdup(line+3);
continue;
}
else
if (streqn(line, "fl=", 3)) {
if (curr_fl != curr_fl_init)
free(curr_fl);
curr_fl = strdup(line+3);
continue;
}
else
if (streqn(line, "summary: ", 9)) {
break;
}
else
parseError(s, "parse_CacheProfFile: unexpected line in main data");
}
// finally, the "summary:" line
if (!streqn(line, "summary: ", 9))
parseError(s, "parse_CacheProfFile: missing SUMMARY line");
cpf->summary_line = strdup(line);
if (cpf->summary_line == NULL)
mallocFail(s, "parse_CacheProfFile(6)");
// there should be nothing more
b = readline(s);
if (b)
parseError(s, "parse_CacheProfFile: "
"extraneous content after SUMMARY line");
// check the summary counts are as expected
summaryRead = splitUpCountsLine( s, NULL, &cpf->summary_line[8] );
if (summaryRead == NULL)
mallocFail(s, "parse_CacheProfFile(7)");
if (summaryRead->n_counts != cpf->n_events)
parseError(s, "parse_CacheProfFile: wrong # counts in SUMMARY line");
for (i = 0; i < summaryRead->n_counts; i++) {
if (summaryRead->counts[i] != cpf->summary->counts[i]) {
parseError(s, "parse_CacheProfFile: "
"computed vs stated SUMMARY counts mismatch");
}
}
free(summaryRead->counts);
sdel_Counts(summaryRead);
// since the summary counts are OK, free up the summary_line text
// which contains the same info.
if (cpf->summary_line) {
free(cpf->summary_line);
cpf->summary_line = NULL;
}
if (curr_fn != curr_fn_init)
free(curr_fn);
if (curr_fl != curr_fl_init)
free(curr_fl);
// All looks OK
return cpf;
#undef N_TMP_DESCLINES
}
static void merge_CacheProfInfo ( SOURCE* s,
/*MOD*/CacheProfFile* dst,
CacheProfFile* src )
{
/* For each (filefn, innerMap) in src
if filefn not in dst
add binding dopy(filefn)->dopy(innerMap) in src
else
// merge src->innerMap with dst->innerMap
for each (lineno, counts) in src->innerMap
if lineno not in dst->innerMap
add binding lineno->dopy(counts) to dst->innerMap
else
add counts into dst->innerMap[lineno]
*/
/* Outer iterator: FileFn* -> WordFM* (inner iterator)
Inner iterator: UWord -> Counts*
*/
FileFn* soKey;
WordFM* soVal;
WordFM* doVal;
UWord siKey;
Counts* siVal;
Counts* diVal;
/* First check mundane things: that the events: lines are
identical. */
if (!streq( dst->events_line, src->events_line ))
barf(s, "\"events:\" line of most recent file does "
"not match those previously processed");
initIterFM( src->outerMap );
// for (filefn, innerMap) in src
while (nextIterFM( src->outerMap, (Word*)&soKey, (Word*)&soVal )) {
// is filefn in dst?
if (! lookupFM( dst->outerMap, (Word*)&doVal, (Word)soKey )) {
// no .. add dopy(filefn) -> dopy(innerMap) to src
FileFn* c_soKey = dopy_FileFn(soKey);
WordFM* c_soVal = dopy_InnerMap(soVal);
if ((!c_soKey) || (!c_soVal)) goto oom;
addToFM( dst->outerMap, (Word)c_soKey, (Word)c_soVal );
} else {
// yes .. merge the two innermaps
initIterFM( soVal );
// for (lno, counts) in soVal (source inner map)
while (nextIterFM( soVal, (Word*)&siKey, (Word*)&siVal )) {
// is lno in the corresponding dst inner map?
if (! lookupFM( doVal, (Word*)&diVal, siKey )) {
// no .. add lineno->dopy(counts) to dst inner map
Counts* c_siVal = dopy_Counts( siVal );
if (!c_siVal) goto oom;
addToFM( doVal, siKey, (Word)c_siVal );
} else {
// yes .. merge counts into dst inner map val
addCounts( s, diVal, siVal );
}
}
}
}
// add the summaries too
addCounts(s, dst->summary, src->summary );
return;
oom:
mallocFail(s, "merge_CacheProfInfo");
}
static void usage ( void )
{
fprintf(stderr, "%s: Merges multiple cachegrind output files into one\n",
argv0);
fprintf(stderr, "%s: usage: %s [-o outfile] [files-to-merge]\n",
argv0, argv0);
exit(1);
}
int main ( int argc, char** argv )
{
Int i;
SOURCE src;
CacheProfFile *cpf, *cpfTmp;
FILE* outfile = NULL;
char* outfilename = NULL;
Int outfileix = 0;
if (argv[0])
argv0 = argv[0];
if (argc < 2)
usage();
for (i = 1; i < argc; i++) {
if (streq(argv[i], "-h") || streq(argv[i], "--help"))
usage();
}
/* Scan args, looking for '-o outfilename'. */
for (i = 1; i < argc; i++) {
if (streq(argv[i], "-o")) {
if (i+1 < argc) {
outfilename = argv[i+1];
outfileix = i;
break;
} else {
usage();
}
}
}
cpf = NULL;
for (i = 1; i < argc; i++) {
if (i == outfileix) {
/* Skip '-o' and whatever follows it */
i += 1;
continue;
}
fprintf(stderr, "%s: parsing %s\n", argv0, argv[i]);
src.lno = 1;
src.filename = argv[i];
src.fp = fopen(src.filename, "r");
if (!src.fp) {
perror(argv0);
barf(&src, "Cannot open input file");
}
assert(src.fp);
cpfTmp = parse_CacheProfFile( &src );
fclose(src.fp);
/* If this isn't the first file, merge */
if (cpf == NULL) {
/* this is the first file */
cpf = cpfTmp;
} else {
/* not the first file; merge */
fprintf(stderr, "%s: merging %s\n", argv0, argv[i]);
merge_CacheProfInfo( &src, cpf, cpfTmp );
ddel_CacheProfFile( cpfTmp );
}
}
/* Now create the output file. */
if (cpf) {
fprintf(stderr, "%s: writing %s\n",
argv0, outfilename ? outfilename : "(stdout)" );
/* Write the output. */
if (outfilename) {
outfile = fopen(outfilename, "w");
if (!outfile) {
fprintf(stderr, "%s: can't create output file %s\n",
argv0, outfilename);
perror(argv0);
exit(1);
}
} else {
outfile = stdout;
}
show_CacheProfFile( outfile, cpf );
if (ferror(outfile)) {
fprintf(stderr, "%s: error writing output file %s\n",
argv0, outfilename ? outfilename : "(stdout)" );
perror(argv0);
if (outfile != stdout)
fclose(outfile);
exit(1);
}
fflush(outfile);
if (outfile != stdout)
fclose( outfile );
ddel_CacheProfFile( cpf );
}
return 0;
}
//------------------------------------------------------------------//
//--- WordFM ---//
//--- Implementation ---//
//------------------------------------------------------------------//
/* ------------ Implementation ------------ */
/* One element of the AVL tree */
typedef
struct _AvlNode {
Word key;
Word val;
struct _AvlNode* left;
struct _AvlNode* right;
Char balance;
}
AvlNode;
typedef
struct {
Word w;
Bool b;
}
MaybeWord;
#define WFM_STKMAX 32 // At most 2**32 entries can be iterated over
struct _WordFM {
AvlNode* root;
void* (*alloc_nofail)( SizeT );
void (*dealloc)(void*);
Word (*kCmp)(Word,Word);
AvlNode* nodeStack[WFM_STKMAX]; // Iterator node stack
Int numStack[WFM_STKMAX]; // Iterator num stack
Int stackTop; // Iterator stack pointer, one past end
};
/* forward */
static Bool avl_removeroot_wrk(AvlNode** t, Word(*kCmp)(Word,Word));
/* Swing to the left. Warning: no balance maintainance. */
static void avl_swl ( AvlNode** root )
{
AvlNode* a = *root;
AvlNode* b = a->right;
*root = b;
a->right = b->left;
b->left = a;
}
/* Swing to the right. Warning: no balance maintainance. */
static void avl_swr ( AvlNode** root )
{
AvlNode* a = *root;
AvlNode* b = a->left;
*root = b;
a->left = b->right;
b->right = a;
}
/* Balance maintainance after especially nasty swings. */
static void avl_nasty ( AvlNode* root )
{
switch (root->balance) {
case -1:
root->left->balance = 0;
root->right->balance = 1;
break;
case 1:
root->left->balance = -1;
root->right->balance = 0;
break;
case 0:
root->left->balance = 0;
root->right->balance = 0;
break;
default:
assert(0);
}
root->balance=0;
}
/* Find size of a non-NULL tree. */
static Word size_avl_nonNull ( AvlNode* nd )
{
return 1 + (nd->left ? size_avl_nonNull(nd->left) : 0)
+ (nd->right ? size_avl_nonNull(nd->right) : 0);
}
/* Insert element a into the AVL tree t. Returns True if the depth of
the tree has grown. If element with that key is already present,
just copy a->val to existing node, first returning old ->val field
of existing node in *oldV, so that the caller can finalize it
however it wants.
*/
static
Bool avl_insert_wrk ( AvlNode** rootp,
/*OUT*/MaybeWord* oldV,
AvlNode* a,
Word (*kCmp)(Word,Word) )
{
Word cmpres;
/* initialize */
a->left = 0;
a->right = 0;
a->balance = 0;
oldV->b = False;
/* insert into an empty tree? */
if (!(*rootp)) {
(*rootp) = a;
return True;
}
cmpres = kCmp( (*rootp)->key, a->key );
if (cmpres > 0) {
/* insert into the left subtree */
if ((*rootp)->left) {
AvlNode* left_subtree = (*rootp)->left;
if (avl_insert_wrk(&left_subtree, oldV, a, kCmp)) {
switch ((*rootp)->balance--) {
case 1: return False;
case 0: return True;
case -1: break;
default: assert(0);
}
if ((*rootp)->left->balance < 0) {
avl_swr( rootp );
(*rootp)->balance = 0;
(*rootp)->right->balance = 0;
} else {
avl_swl( &((*rootp)->left) );
avl_swr( rootp );
avl_nasty( *rootp );
}
} else {
(*rootp)->left = left_subtree;
}
return False;
} else {
(*rootp)->left = a;
if ((*rootp)->balance--)
return False;
return True;
}
assert(0);/*NOTREACHED*/
}
else
if (cmpres < 0) {
/* insert into the right subtree */
if ((*rootp)->right) {
AvlNode* right_subtree = (*rootp)->right;
if (avl_insert_wrk(&right_subtree, oldV, a, kCmp)) {
switch((*rootp)->balance++){
case -1: return False;
case 0: return True;
case 1: break;
default: assert(0);
}
if ((*rootp)->right->balance > 0) {
avl_swl( rootp );
(*rootp)->balance = 0;
(*rootp)->left->balance = 0;
} else {
avl_swr( &((*rootp)->right) );
avl_swl( rootp );
avl_nasty( *rootp );
}
} else {
(*rootp)->right = right_subtree;
}
return False;
} else {
(*rootp)->right = a;
if ((*rootp)->balance++)
return False;
return True;
}
assert(0);/*NOTREACHED*/
}
else {
/* cmpres == 0, a duplicate - replace the val, but don't
incorporate the node in the tree */
oldV->b = True;
oldV->w = (*rootp)->val;
(*rootp)->val = a->val;
return False;
}
}
/* Remove an element a from the AVL tree t. a must be part of
the tree. Returns True if the depth of the tree has shrunk.
*/
static
Bool avl_remove_wrk ( AvlNode** rootp,
AvlNode* a,
Word(*kCmp)(Word,Word) )
{
Bool ch;
Word cmpres = kCmp( (*rootp)->key, a->key );
if (cmpres > 0){
/* remove from the left subtree */
AvlNode* left_subtree = (*rootp)->left;
assert(left_subtree);
ch = avl_remove_wrk(&left_subtree, a, kCmp);
(*rootp)->left=left_subtree;
if (ch) {
switch ((*rootp)->balance++) {
case -1: return True;
case 0: return False;
case 1: break;
default: assert(0);
}
switch ((*rootp)->right->balance) {
case 0:
avl_swl( rootp );
(*rootp)->balance = -1;
(*rootp)->left->balance = 1;
return False;
case 1:
avl_swl( rootp );
(*rootp)->balance = 0;
(*rootp)->left->balance = 0;
return -1;
case -1:
break;
default:
assert(0);
}
avl_swr( &((*rootp)->right) );
avl_swl( rootp );
avl_nasty( *rootp );
return True;
}
}
else
if (cmpres < 0) {
/* remove from the right subtree */
AvlNode* right_subtree = (*rootp)->right;
assert(right_subtree);
ch = avl_remove_wrk(&right_subtree, a, kCmp);
(*rootp)->right = right_subtree;
if (ch) {
switch ((*rootp)->balance--) {
case 1: return True;
case 0: return False;
case -1: break;
default: assert(0);
}
switch ((*rootp)->left->balance) {
case 0:
avl_swr( rootp );
(*rootp)->balance = 1;
(*rootp)->right->balance = -1;
return False;
case -1:
avl_swr( rootp );
(*rootp)->balance = 0;
(*rootp)->right->balance = 0;
return True;
case 1:
break;
default:
assert(0);
}
avl_swl( &((*rootp)->left) );
avl_swr( rootp );
avl_nasty( *rootp );
return True;
}
}
else {
assert(cmpres == 0);
assert((*rootp)==a);
return avl_removeroot_wrk(rootp, kCmp);
}
return 0;
}
/* Remove the root of the AVL tree *rootp.
* Warning: dumps core if *rootp is empty
*/
static
Bool avl_removeroot_wrk ( AvlNode** rootp,
Word(*kCmp)(Word,Word) )
{
Bool ch;
AvlNode* a;
if (!(*rootp)->left) {
if (!(*rootp)->right) {
(*rootp) = 0;
return True;
}
(*rootp) = (*rootp)->right;
return True;
}
if (!(*rootp)->right) {
(*rootp) = (*rootp)->left;
return True;
}
if ((*rootp)->balance < 0) {
/* remove from the left subtree */
a = (*rootp)->left;
while (a->right) a = a->right;
} else {
/* remove from the right subtree */
a = (*rootp)->right;
while (a->left) a = a->left;
}
ch = avl_remove_wrk(rootp, a, kCmp);
a->left = (*rootp)->left;
a->right = (*rootp)->right;
a->balance = (*rootp)->balance;
(*rootp) = a;
if(a->balance == 0) return ch;
return False;
}
static
AvlNode* avl_find_node ( AvlNode* t, Word k, Word(*kCmp)(Word,Word) )
{
Word cmpres;
while (True) {
if (t == NULL) return NULL;
cmpres = kCmp(t->key, k);
if (cmpres > 0) t = t->left; else
if (cmpres < 0) t = t->right; else
return t;
}
}
// Clear the iterator stack.
static void stackClear(WordFM* fm)
{
Int i;
assert(fm);
for (i = 0; i < WFM_STKMAX; i++) {
fm->nodeStack[i] = NULL;
fm->numStack[i] = 0;
}
fm->stackTop = 0;
}
// Push onto the iterator stack.
static inline void stackPush(WordFM* fm, AvlNode* n, Int i)
{
assert(fm->stackTop < WFM_STKMAX);
assert(1 <= i && i <= 3);
fm->nodeStack[fm->stackTop] = n;
fm-> numStack[fm->stackTop] = i;
fm->stackTop++;
}
// Pop from the iterator stack.
static inline Bool stackPop(WordFM* fm, AvlNode** n, Int* i)
{
assert(fm->stackTop <= WFM_STKMAX);
if (fm->stackTop > 0) {
fm->stackTop--;
*n = fm->nodeStack[fm->stackTop];
*i = fm-> numStack[fm->stackTop];
assert(1 <= *i && *i <= 3);
fm->nodeStack[fm->stackTop] = NULL;
fm-> numStack[fm->stackTop] = 0;
return True;
} else {
return False;
}
}
static
AvlNode* avl_dopy ( AvlNode* nd,
Word(*dopyK)(Word),
Word(*dopyV)(Word),
void*(alloc_nofail)(SizeT) )
{
AvlNode* nyu;
if (! nd)
return NULL;
nyu = alloc_nofail(sizeof(AvlNode));
assert(nyu);
nyu->left = nd->left;
nyu->right = nd->right;
nyu->balance = nd->balance;
/* Copy key */
if (dopyK) {
nyu->key = dopyK( nd->key );
if (nd->key != 0 && nyu->key == 0)
return NULL; /* oom in key dcopy */
} else {
/* copying assumedly unboxed keys */
nyu->key = nd->key;
}
/* Copy val */
if (dopyV) {
nyu->val = dopyV( nd->val );
if (nd->val != 0 && nyu->val == 0)
return NULL; /* oom in val dcopy */
} else {
/* copying assumedly unboxed vals */
nyu->val = nd->val;
}
/* Copy subtrees */
if (nyu->left) {
nyu->left = avl_dopy( nyu->left, dopyK, dopyV, alloc_nofail );
if (! nyu->left)
return NULL;
}
if (nyu->right) {
nyu->right = avl_dopy( nyu->right, dopyK, dopyV, alloc_nofail );
if (! nyu->right)
return NULL;
}
return nyu;
}
/* --- Public interface functions --- */
/* Initialise a WordFM. */
void initFM ( WordFM* fm,
void* (*alloc_nofail)( SizeT ),
void (*dealloc)(void*),
Word (*kCmp)(Word,Word) )
{
fm->root = 0;
fm->kCmp = kCmp;
fm->alloc_nofail = alloc_nofail;
fm->dealloc = dealloc;
fm->stackTop = 0;
}
/* Allocate and Initialise a WordFM. */
WordFM* newFM( void* (*alloc_nofail)( SizeT ),
void (*dealloc)(void*),
Word (*kCmp)(Word,Word) )
{
WordFM* fm = alloc_nofail(sizeof(WordFM));
assert(fm);
initFM(fm, alloc_nofail, dealloc, kCmp);
return fm;
}
static void avl_free ( AvlNode* nd,
void(*kFin)(Word),
void(*vFin)(Word),
void(*dealloc)(void*) )
{
if (!nd)
return;
if (nd->left)
avl_free(nd->left, kFin, vFin, dealloc);
if (nd->right)
avl_free(nd->right, kFin, vFin, dealloc);
if (kFin)
kFin( nd->key );
if (vFin)
vFin( nd->val );
memset(nd, 0, sizeof(AvlNode));
dealloc(nd);
}
/* Free up the FM. If kFin is non-NULL, it is applied to keys
before the FM is deleted; ditto with vFin for vals. */
void deleteFM ( WordFM* fm, void(*kFin)(Word), void(*vFin)(Word) )
{
void(*dealloc)(void*) = fm->dealloc;
avl_free( fm->root, kFin, vFin, dealloc );
memset(fm, 0, sizeof(WordFM) );
dealloc(fm);
}
/* Add (k,v) to fm. */
void addToFM ( WordFM* fm, Word k, Word v )
{
MaybeWord oldV;
AvlNode* node;
node = fm->alloc_nofail( sizeof(struct _AvlNode) );
node->key = k;
node->val = v;
oldV.b = False;
oldV.w = 0;
avl_insert_wrk( &fm->root, &oldV, node, fm->kCmp );
//if (oldV.b && fm->vFin)
// fm->vFin( oldV.w );
if (oldV.b)
free(node);
}
// Delete key from fm, returning associated val if found
Bool delFromFM ( WordFM* fm, /*OUT*/Word* oldV, Word key )
{
AvlNode* node = avl_find_node( fm->root, key, fm->kCmp );
if (node) {
avl_remove_wrk( &fm->root, node, fm->kCmp );
if (oldV)
*oldV = node->val;
fm->dealloc(node);
return True;
} else {
return False;
}
}
// Look up in fm, assigning found val at spec'd address
Bool lookupFM ( WordFM* fm, /*OUT*/Word* valP, Word key )
{
AvlNode* node = avl_find_node( fm->root, key, fm->kCmp );
if (node) {
if (valP)
*valP = node->val;
return True;
} else {
return False;
}
}
Word sizeFM ( WordFM* fm )
{
// Hmm, this is a bad way to do this
return fm->root ? size_avl_nonNull( fm->root ) : 0;
}
// set up FM for iteration
void initIterFM ( WordFM* fm )
{
assert(fm);
stackClear(fm);
if (fm->root)
stackPush(fm, fm->root, 1);
}
// get next key/val pair. Will assert if fm has been modified
// or looked up in since initIterFM was called.
Bool nextIterFM ( WordFM* fm, /*OUT*/Word* pKey, /*OUT*/Word* pVal )
{
Int i = 0;
AvlNode* n = NULL;
assert(fm);
// This in-order traversal requires each node to be pushed and popped
// three times. These could be avoided by updating nodes in-situ on the
// top of the stack, but the push/pop cost is so small that it's worth
// keeping this loop in this simpler form.
while (stackPop(fm, &n, &i)) {
switch (i) {
case 1:
stackPush(fm, n, 2);
if (n->left) stackPush(fm, n->left, 1);
break;
case 2:
stackPush(fm, n, 3);
if (pKey) *pKey = n->key;
if (pVal) *pVal = n->val;
return True;
case 3:
if (n->right) stackPush(fm, n->right, 1);
break;
default:
assert(0);
}
}
// Stack empty, iterator is exhausted, return NULL
return False;
}
// clear the I'm iterating flag
void doneIterFM ( WordFM* fm )
{
}
WordFM* dopyFM ( WordFM* fm, Word(*dopyK)(Word), Word(*dopyV)(Word) )
{
WordFM* nyu;
/* can't clone the fm whilst iterating on it */
assert(fm->stackTop == 0);
nyu = fm->alloc_nofail( sizeof(WordFM) );
assert(nyu);
*nyu = *fm;
fm->stackTop = 0;
memset(fm->nodeStack, 0, sizeof(fm->nodeStack));
memset(fm->numStack, 0, sizeof(fm->numStack));
if (nyu->root) {
nyu->root = avl_dopy( nyu->root, dopyK, dopyV, fm->alloc_nofail );
if (! nyu->root)
return NULL;
}
return nyu;
}
//------------------------------------------------------------------//
//--- end WordFM ---//
//--- Implementation ---//
//------------------------------------------------------------------//
/*--------------------------------------------------------------------*/
/*--- end cg_merge.c ---*/
/*--------------------------------------------------------------------*/