| Line 21... |
Line 21... |
by or1ksim. (use --profile option at command line, when running or1ksim. */
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by or1ksim. (use --profile option at command line, when running or1ksim. */
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#include <stdio.h>
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#include <stdio.h>
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#include "profiler.h"
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#include "profiler.h"
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struct stack_struct {
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static struct stack_struct stack[MAX_STACK];
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/* Function address */
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unsigned int addr;
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/* Cycles of function start; cycles of subfunctions are added later */
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struct func_struct prof_func[MAX_FUNCS];
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unsigned int cycles;
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/* Return address */
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unsigned int raddr;
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/* Name of the function */
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char name[33];
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} stack[MAX_STACK];
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struct func_struct {
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/* Start address of function */
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unsigned int addr;
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/* Name of the function */
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char name[33];
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/* Total cycles spent in function */
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long cum_cycles;
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/* Calls to this function */
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long calls;
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} func[MAX_FUNCS];
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/* Total number of functions */
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/* Total number of functions */
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int nfuncs = 0;
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int prof_nfuncs = 0;
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/* Current depth */
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/* Current depth */
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int nstack = 0;
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static int nstack = 0;
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/* Max depth */
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/* Max depth */
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int maxstack = 0;
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static int maxstack = 0;
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/* Number of total calls */
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/* Number of total calls */
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int ntotcalls = 0;
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static int ntotcalls = 0;
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/* Number of covered calls */
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/* Number of covered calls */
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int nfunccalls = 0;
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static int nfunccalls = 0;
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/* Current cycles */
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/* Current cycles */
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static int cycles = 0;
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int prof_cycles = 0;
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/* Whether we are in cumulative mode */
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/* Whether we are in cumulative mode */
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static int cumulative = 0;
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static int cumulative = 0;
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/* Whether we should not report warnings */
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/* Whether we should not report warnings */
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static int quiet = 0;
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static int quiet = 0;
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/* File to read from */
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static FILE *fprof = 0;
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/* Print out command line help */
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void prof_help ()
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void prof_help ()
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{
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{
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printf ("profiler [-c] [-q] -g [profile_file_name]\n");
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printf ("profiler [-c] [-q] -g [profile_file_name]\n");
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printf ("\t-c\t--cumulative\t\tcumulative sum of cycles in functions\n");
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printf ("\t-c\t--cumulative\t\tcumulative sum of cycles in functions\n");
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printf ("\t-q\t--quiet\t\t\tsuppress messages\n");
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printf ("\t-q\t--quiet\t\t\tsuppress messages\n");
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printf ("\t-g\t--generate [profile_file_name]\n");
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printf ("\t-g\t--generate [profile_file_name]\n");
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printf ("\t\t\t\t\toutput profiling results to\n");
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printf ("\t\t\t\t\toutput profiling results to\n");
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printf ("\t\t\t\t\tstdout/profile_file_name\n");
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printf ("\t\t\t\t\tstdout/profile_file_name\n");
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}
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}
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/* File to read from */
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/* Acquire data from profiler file */
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static FILE *fprof = 0;
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int prof_acquire (char *fprofname)
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{
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int main_profiler (int argc, char *argv[]) {
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char fprofname[50] = "sim.profile";
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int line = 0;
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int line = 0;
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if (argc > 4 || argc < 2) {
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prof_help ();
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return 1;
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}
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argv++; argc--;
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while (argc > 0) {
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if (!strcmp(argv[0], "-q") || !strcmp(argv[0], "--quiet")) {
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quiet = 1;
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argv++; argc--;
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} else if (!strcmp(argv[0], "-c") || !strcmp(argv[0], "--cumulative")) {
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cumulative = 1;
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argv++; argc--;
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} else if (strcmp(argv[0], "-g") && strcmp(argv[0], "--generate")) {
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prof_help ();
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return -1;
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} else {
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argv++; argc--;
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if (argv[0] && argv[0][0] != '-') {
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strcpy (&fprofname[0], argv[0]);
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argv++; argc--;
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}
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}
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}
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fprof = fopen (fprofname, "rt");
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fprof = fopen (fprofname, "rt");
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if (!fprof) {
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if (!fprof) {
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fprintf (stderr, "Cannot open profile file: %s\n", fprofname);
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fprintf (stderr, "Cannot open profile file: %s\n", fprofname);
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return 1;
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return 1;
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| Line 130... |
Line 82... |
if (dir == '+') {
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if (dir == '+') {
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if (fscanf (fprof, "%08X %08X %08X %s\n", &stack[nstack].cycles, &stack[nstack].raddr,
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if (fscanf (fprof, "%08X %08X %08X %s\n", &stack[nstack].cycles, &stack[nstack].raddr,
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&stack[nstack].addr, &stack[nstack].name[0]) != 4)
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&stack[nstack].addr, &stack[nstack].name[0]) != 4)
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fprintf (stderr, "Error reading line #%i\n", line);
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fprintf (stderr, "Error reading line #%i\n", line);
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else {
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else {
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cycles = stack[nstack].cycles;
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prof_cycles = stack[nstack].cycles;
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nstack++;
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nstack++;
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if (nstack > maxstack)
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if (nstack > maxstack)
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maxstack = nstack;
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maxstack = nstack;
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}
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}
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ntotcalls++;
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ntotcalls++;
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| Line 142... |
Line 94... |
struct stack_struct s;
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struct stack_struct s;
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if (fscanf (fprof, "%08X %08X\n", &s.cycles, &s.raddr) != 2)
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if (fscanf (fprof, "%08X %08X\n", &s.cycles, &s.raddr) != 2)
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fprintf (stderr, "Error reading line #%i\n", line);
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fprintf (stderr, "Error reading line #%i\n", line);
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else {
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else {
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int i;
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int i;
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cycles = s.cycles;
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prof_cycles = s.cycles;
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for (i = nstack - 1; i >= 0; i--)
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for (i = nstack - 1; i >= 0; i--)
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if (stack[i].raddr == s.raddr) break;
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if (stack[i].raddr == s.raddr) break;
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if (i >= 0) {
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if (i >= 0) {
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/* pop everything above current from stack,
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/* pop everything above current from stack,
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if more than one, something went wrong */
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if more than one, something went wrong */
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Line 118... |
stack[j].cycles += time;
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stack[j].cycles += time;
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if (!quiet && i != nstack)
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if (!quiet && i != nstack)
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fprintf (stderr, "WARNING: Missaligned return call for %s (%08X) (found %s @ %08X), closing.\n", stack[nstack].name, stack[nstack].raddr, stack[i].name, stack[i].raddr);
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fprintf (stderr, "WARNING: Missaligned return call for %s (%08X) (found %s @ %08X), closing.\n", stack[nstack].name, stack[nstack].raddr, stack[i].name, stack[i].raddr);
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for (j = 0; j < nfuncs; j++)
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for (j = 0; j < prof_nfuncs; j++)
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if (stack[nstack].addr == func[j].addr) { /* function exists, append. */
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if (stack[nstack].addr == prof_func[j].addr) { /* function exists, append. */
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func[j].cum_cycles += time;
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prof_func[j].cum_cycles += time;
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func[j].calls++;
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prof_func[j].calls++;
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nfunccalls++;
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nfunccalls++;
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break;
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break;
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}
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}
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if (j >= nfuncs) { /* function does not yet exist, create new. */
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if (j >= prof_nfuncs) { /* function does not yet exist, create new. */
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func[nfuncs].cum_cycles = time;
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prof_func[prof_nfuncs].cum_cycles = time;
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func[nfuncs].calls = 1;
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prof_func[prof_nfuncs].calls = 1;
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nfunccalls++;
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nfunccalls++;
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func[nfuncs].addr = stack[nstack].addr;
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prof_func[prof_nfuncs].addr = stack[nstack].addr;
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strcpy (func[nfuncs].name, stack[nstack].name);
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strcpy (prof_func[prof_nfuncs].name, stack[nstack].name);
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nfuncs++;
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prof_nfuncs++;
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}
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}
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}
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}
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} else if (!quiet) fprintf (stderr, "WARNING: Cannot find return call for (%08X), ignoring.\n", s.raddr);
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} else if (!quiet) fprintf (stderr, "WARNING: Cannot find return call for (%08X), ignoring.\n", s.raddr);
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}
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}
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} else
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} else
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break;
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break;
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}
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}
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fclose(fprof);
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fclose(fprof);
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}
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/* Now we have all data acquired. Print out. */
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/* Print out profiling data */
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void prof_print ()
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{
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{
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int i, j;
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int i, j;
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if (cumulative)
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if (cumulative)
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printf ("CUMULATIVE TIMES\n");
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printf ("CUMULATIVE TIMES\n");
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printf ("---------------------------------------------------------------------------\n");
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printf ("---------------------------------------------------------------------------\n");
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printf ("|function name |addr |# calls |avg cycles |total cyles |\n");
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printf ("|function name |addr |# calls |avg cycles |total cyles |\n");
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printf ("|-------------------------+--------+--------+------------+----------------|\n");
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printf ("|-------------------------+--------+--------+------------+----------------|\n");
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for (j = 0; j < nfuncs; j++) {
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for (j = 0; j < prof_nfuncs; j++) {
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int bestcyc = 0, besti = 0;
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int bestcyc = 0, besti = 0;
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for (i = 0; i < nfuncs; i++)
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for (i = 0; i < prof_nfuncs; i++)
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if (func[i].cum_cycles > bestcyc) {
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if (prof_func[i].cum_cycles > bestcyc) {
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bestcyc = func[i].cum_cycles;
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bestcyc = prof_func[i].cum_cycles;
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besti = i;
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besti = i;
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}
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}
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i = besti;
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i = besti;
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printf ("| %-24s|%08X|%8i|%12.1f|%11i,%3.0f%%|\n",
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printf ("| %-24s|%08X|%8i|%12.1f|%11i,%3.0f%%|\n",
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func[i].name, func[i].addr, func[i].calls, ((double)func[i].cum_cycles / func[i].calls), func[i].cum_cycles, (100. * func[i].cum_cycles / cycles));
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prof_func[i].name, prof_func[i].addr, prof_func[i].calls, ((double)prof_func[i].cum_cycles / prof_func[i].calls), prof_func[i].cum_cycles, (100. * prof_func[i].cum_cycles / prof_cycles));
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func[i].cum_cycles = -1;
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prof_func[i].cum_cycles = -1;
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}
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}
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printf ("---------------------------------------------------------------------------\n");
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printf ("---------------------------------------------------------------------------\n");
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}
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printf ("Total %i functions, %i cycles.\n", prof_nfuncs, prof_cycles);
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printf ("Total %i functions, %i cycles.\n", nfuncs, cycles);
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printf ("Total function calls %i/%i (max depth %i).\n", nfunccalls, ntotcalls, maxstack);
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printf ("Total function calls %i/%i (max depth %i).\n", nfunccalls, ntotcalls, maxstack);
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}
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/* Set options */
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void prof_set (int _quiet, int _cumulative)
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{
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quiet = _quiet;
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cumulative = _cumulative;
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}
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int main_profiler (int argc, char *argv[]) {
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char fprofname[50] = "sim.profile";
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if (argc > 4 || argc < 2) {
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prof_help ();
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return 1;
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}
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argv++; argc--;
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while (argc > 0) {
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if (!strcmp(argv[0], "-q") || !strcmp(argv[0], "--quiet")) {
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quiet = 1;
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argv++; argc--;
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} else if (!strcmp(argv[0], "-c") || !strcmp(argv[0], "--cumulative")) {
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cumulative = 1;
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argv++; argc--;
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} else if (strcmp(argv[0], "-g") && strcmp(argv[0], "--generate")) {
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prof_help ();
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return -1;
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} else {
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argv++; argc--;
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if (argv[0] && argv[0][0] != '-') {
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strcpy (&fprofname[0], argv[0]);
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argv++; argc--;
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}
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}
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}
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prof_acquire (fprofname);
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/* Now we have all data acquired. Print out. */
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prof_print ();
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return 0;
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return 0;
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}
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}
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No newline at end of file
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No newline at end of file
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