external/cairo/pixman/pixman-ubsan.patch

   1 diff -ru pixman-0.42.2.orig/pixman/pixman-bits-image.c pixman-0.42.2/pixman/pixman-bits-image.c
   2 --- misc/pixman-0.42.2.orig/pixman/pixman-bits-image.c  2022-11-03 02:25:48.000000000 +0900
   3 +++ misc/build/pixman-0.42.2/pixman/pixman-bits-image.c 2022-11-28 21:35:25.896969126 +0900
   4 @@ -351,8 +351,8 @@
   5       * positioned relative to a particular phase (and not relative to whatever
   6       * exact fraction we happen to get here).
   7       */
   8 -    x = ((x >> x_phase_shift) << x_phase_shift) + ((1 << x_phase_shift) >> 1);
   9 -    y = ((y >> y_phase_shift) << y_phase_shift) + ((1 << y_phase_shift) >> 1);
  10 +    x = ((uint32_t)(x >> x_phase_shift) << x_phase_shift) + ((1 << x_phase_shift) >> 1);
  11 +    y = ((uint32_t)(y >> y_phase_shift) << y_phase_shift) + ((1 << y_phase_shift) >> 1);
  12
  13      px = (x & 0xffff) >> x_phase_shift;
  14      py = (y & 0xffff) >> y_phase_shift;
  15 diff -ru pixman-0.42.2.orig/pixman/pixman-combine32.c pixman-0.42.2/pixman/pixman-combine32.c
  16 --- misc/pixman-0.42.2.orig/pixman/pixman-combine32.c   2022-02-02 05:51:25.000000000 +0900
  17 +++ misc/build/pixman-0.42.2/pixman/pixman-combine32.c  2022-11-28 21:38:48.226968594 +0900
  18 @@ -589,7 +589,7 @@
  19             rg = DIV_ONE_UN8 (rg);                                      \
  20             rb = DIV_ONE_UN8 (rb);                                      \
  21                                                                         \
  22 -           *(dest + i) = ra << 24 | rr << 16 | rg << 8 | rb;           \
  23 +           *(dest + i) = (uint32_t)ra << 24 | rr << 16 | rg << 8 | rb;         \
  24         }                                                               \
  25      }                                                                  \
  26                                                                         \
  27 diff -ru pixman-0.42.2.orig/pixman/pixman-fast-path.c pixman-0.42.2/pixman/pixman-fast-path.c
  28 --- misc/pixman-0.42.2.orig/pixman/pixman-fast-path.c   2022-10-18 02:47:42.000000000 +0900
  29 +++ misc/build/pixman-0.42.2/pixman/pixman-fast-path.c  2022-11-28 21:53:12.596963317 +0900
  30 @@ -2758,8 +2758,8 @@
  31          * positioned relative to a particular phase (and not relative to whatever
  32          * exact fraction we happen to get here).
  33          */
  34 -       x = ((vx >> x_phase_shift) << x_phase_shift) + ((1 << x_phase_shift) >> 1);
  35 -       y = ((vy >> y_phase_shift) << y_phase_shift) + ((1 << y_phase_shift) >> 1);
  36 +       x = ((uint32_t)(vx >> x_phase_shift) << x_phase_shift) + ((1 << x_phase_shift) >> 1);
  37 +       y = ((uint32_t)(vy >> y_phase_shift) << y_phase_shift) + ((1 << y_phase_shift) >> 1);
  38
  39         px = (x & 0xffff) >> x_phase_shift;
  40         py = (y & 0xffff) >> y_phase_shift;
  41 @@ -2837,9 +2837,9 @@
  42         sbtot = CLIP (sbtot, 0, 0xff);
  43
  44  #ifdef WORDS_BIGENDIAN
  45 -       buffer[k] = (satot << 0) | (srtot << 8) | (sgtot << 16) | (sbtot << 24);
  46 +       buffer[k] = (satot << 0) | (srtot << 8) | (sgtot << 16) | ((uint32_t)sbtot << 24);
  47  #else
  48 -       buffer[k] = (satot << 24) | (srtot << 16) | (sgtot << 8) | (sbtot << 0);
  49 +       buffer[k] = ((uint32_t)satot << 24) | (srtot << 16) | (sgtot << 8) | (sbtot << 0);
  50  #endif
  51
  52      next:
  53 diff -ru pixman-0.42.2.orig/pixman/pixman-sse2.c pixman-0.42.2/pixman/pixman-sse2.c
  54 --- misc/pixman-0.42.2/pixman/pixman-sse2.c     2022-02-02 05:51:25.000000000 +0900
  55 +++ misc/build/pixman-0.42.2/pixman/pixman-sse2.c   2022-11-28 22:11:19.276969466 +0900
  56 @@ -3345,7 +3345,7 @@
  57
  58         b = filler & 0xff;
  59         w = (b << 8) | b;
  60 -       filler = (w << 16) | w;
  61 +       filler = ((uint32_t)w << 16) | w;
  62      }
  63      else if (bpp == 16)
  64      {
  65 diff -ru pixman-0.42.2.orig/pixman/pixman-utils.c pixman-0.42.2/pixman/pixman-utils.c
  66 --- misc/pixman-0.42.2.orig/pixman/pixman-utils.c       2022-02-02 05:51:25.000000000 +0900
  67 +++ misc/build/pixman-0.42.2/pixman/pixman-utils.c      2022-11-28 21:55:44.196964912 +0900
  68 @@ -213,7 +213,7 @@
  69         g = float_to_unorm (src[i].g, 8);
  70         b = float_to_unorm (src[i].b, 8);
  71
  72 -       dst[i] = (a << 24) | (r << 16) | (g << 8) | (b << 0);
  73 +       dst[i] = ((uint32_t)a << 24) | (r << 16) | (g << 8) | (b << 0);
  74      }
  75  }
  76