Exemple #1
0
/* Classify tuple counts. Instead of mapping to individual bits, as in
   afl-fuzz.c, we map to more user-friendly numbers between 1 and 8. */

#define AREP4(_sym)   (_sym), (_sym), (_sym), (_sym)
#define AREP8(_sym)   AREP4(_sym),  AREP4(_sym)
#define AREP16(_sym)  AREP8(_sym),  AREP8(_sym)
#define AREP32(_sym)  AREP16(_sym), AREP16(_sym)
#define AREP64(_sym)  AREP32(_sym), AREP32(_sym)
#define AREP128(_sym) AREP64(_sym), AREP64(_sym)

static u8 count_class_lookup[256] = {

  /* 0 - 3:       4 */ 0, 1, 2, 3,
  /* 4 - 7:      +4 */ AREP4(4),
  /* 8 - 15:     +8 */ AREP8(5),
  /* 16 - 31:   +16 */ AREP16(6),
  /* 32 - 127:  +96 */ AREP64(7), AREP32(7),
  /* 128+:     +128 */ AREP128(8)

};

static void classify_counts(u8* mem) {

  u32 i = MAP_SIZE;

  if (edges_only) {

    while (i--) {
      if (*mem) *mem = 1;
      mem++;
    }
Exemple #2
0

/* Classify tuple counts. This is a slow & naive version, but good enough here. */
#define AREP4(_sym)   (_sym), (_sym), (_sym), (_sym)
#define AREP8(_sym)   AREP4(_sym), AREP4(_sym)
#define AREP16(_sym)  AREP8(_sym), AREP8(_sym)
#define AREP32(_sym)  AREP16(_sym), AREP16(_sym)
#define AREP64(_sym)  AREP32(_sym), AREP32(_sym)
#define AREP128(_sym) AREP64(_sym), AREP64(_sym)

static const u8 count_class_lookup[256] = {

  /* 0 - 3:       4 */ 0, 1, 2, 4,
  /* 4 - 7:      +4 */ AREP4(8),
  /* 8 - 15:     +8 */ AREP8(16),
  /* 16 - 31:   +16 */ AREP16(32),
  /* 32 - 127:  +96 */ AREP64(64), AREP32(64),
  /* 128+:     +128 */ AREP128(128)

};

static void classify_counts(u8* mem) {

  u32 i = MAP_SIZE;

  if (edges_only) {

    while (i--) {
      if (*mem) *mem = 1;
      mem++;
    }