#include "Profiling.h"
#include <assert.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <string.h>
#if !defined(_MSC_VER) && !defined(__MINGW32__)
#include <unistd.h>
#else
#include <io.h>
#endif
#include <stdlib.h>
static char *SavedArgs = 0;
static unsigned SavedArgsLength = 0;
static const char *OutputFilename = "llvmprof.out";
int save_arguments(int argc, const char **argv) {
unsigned Length, i;
if (SavedArgs || !argv) return argc;
while (argc > 1 && !strncmp(argv[1], "-llvmprof-", 10)) {
const char *Arg = argv[1];
memmove((char**)&argv[1], &argv[2], (argc-1)*sizeof(char*));
--argc;
if (!strcmp(Arg, "-llvmprof-output")) {
if (argc == 1)
puts("-llvmprof-output requires a filename argument!");
else {
OutputFilename = strdup(argv[1]);
memmove((char**)&argv[1], &argv[2], (argc-1)*sizeof(char*));
--argc;
}
} else {
printf("Unknown option to the profiler runtime: '%s' - ignored.\n", Arg);
}
}
for (Length = 0, i = 0; i != (unsigned)argc; ++i)
Length += strlen(argv[i])+1;
SavedArgs = (char*)malloc(Length);
for (Length = 0, i = 0; i != (unsigned)argc; ++i) {
unsigned Len = strlen(argv[i]);
memcpy(SavedArgs+Length, argv[i], Len);
Length += Len;
SavedArgs[Length++] = ' ';
}
SavedArgsLength = Length;
return argc;
}
int getOutFile() {
static int OutFile = -1;
if (OutFile == -1) {
OutFile = open(OutputFilename, O_CREAT | O_WRONLY, 0666);
lseek(OutFile, 0, SEEK_END);
if (OutFile == -1) {
fprintf(stderr, "LLVM profiling runtime: while opening '%s': ",
OutputFilename);
perror("");
return(OutFile);
}
{
int PTy = ArgumentInfo;
int Zeros = 0;
if (write(OutFile, &PTy, sizeof(int)) < 0 ||
write(OutFile, &SavedArgsLength, sizeof(unsigned)) < 0 ||
write(OutFile, SavedArgs, SavedArgsLength) < 0 ) {
fprintf(stderr,"error: unable to write to output file.");
exit(0);
}
if (SavedArgsLength & 3) {
if (write(OutFile, &Zeros, 4-(SavedArgsLength&3)) < 0) {
fprintf(stderr,"error: unable to write to output file.");
exit(0);
}
}
}
}
return(OutFile);
}
void write_profiling_data(enum ProfilingType PT, unsigned *Start,
unsigned NumElements) {
int PTy;
int outFile = getOutFile();
PTy = PT;
if( write(outFile, &PTy, sizeof(int)) < 0 ||
write(outFile, &NumElements, sizeof(unsigned)) < 0 ||
write(outFile, Start, NumElements*sizeof(unsigned)) < 0 ) {
fprintf(stderr,"error: unable to write to output file.");
exit(0);
}
}