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107 regels
2.6 KiB
107 regels
2.6 KiB
/*
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* tracegen.c - Running the binary tracegen with valgrind produces
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* a memory trace of all of the registered transpose functions.
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*
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* The beginning and end of each registered transpose function's trace
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* is indicated by reading from "marker" addresses. These two marker
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* addresses are recorded in file for later use.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <assert.h>
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#include <unistd.h>
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#include <getopt.h>
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#include "cachelab.h"
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#include <string.h>
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/* External variables declared in cachelab.c */
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extern trans_func_t func_list[MAX_TRANS_FUNCS];
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extern int func_counter;
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/* External function from trans.c */
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extern void registerFunctions();
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/* Markers used to bound trace regions of interest */
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volatile char MARKER_START, MARKER_END;
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static int A[256][256];
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static int B[256][256];
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static int M;
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static int N;
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int validate(int fn,int M, int N, int A[N][M], int B[M][N]) {
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int C[M][N];
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memset(C,0,sizeof(C));
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correctTrans(M,N,A,C);
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for(int i=0;i<M;i++) {
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for(int j=0;j<N;j++) {
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if(B[i][j]!=C[i][j]) {
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printf("Validation failed on function %d! Expected %d but got %d at B[%d][%d]\n",fn,C[i][j],B[i][j],i,j);
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return 0;
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}
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}
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}
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return 1;
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}
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int main(int argc, char* argv[]){
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int i;
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char c;
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int selectedFunc=-1;
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while( (c=getopt(argc,argv,"M:N:F:")) != -1){
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switch(c){
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case 'M':
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M = atoi(optarg);
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break;
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case 'N':
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N = atoi(optarg);
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break;
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case 'F':
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selectedFunc = atoi(optarg);
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break;
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case '?':
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default:
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printf("./tracegen failed to parse its options.\n");
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exit(1);
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}
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}
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/* Register transpose functions */
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registerFunctions();
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/* Fill A with data */
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initMatrix(M,N, A, B);
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/* Record marker addresses */
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FILE* marker_fp = fopen(".marker","w");
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assert(marker_fp);
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fprintf(marker_fp, "%llx %llx",
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(unsigned long long int) &MARKER_START,
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(unsigned long long int) &MARKER_END );
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fclose(marker_fp);
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if (-1==selectedFunc) {
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/* Invoke registered transpose functions */
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for (i=0; i < func_counter; i++) {
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MARKER_START = 33;
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(*func_list[i].func_ptr)(M, N, A, B);
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MARKER_END = 34;
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if (!validate(i,M,N,A,B))
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return i+1;
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}
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} else {
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MARKER_START = 33;
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(*func_list[selectedFunc].func_ptr)(M, N, A, B);
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MARKER_END = 34;
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if (!validate(selectedFunc,M,N,A,B))
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return selectedFunc+1;
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}
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return 0;
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}
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