PR26457 UBSAN: som.c:1794 left shift cannot be represented

	PR 26457
	* som/aout.h (SOM_SUBSPACE_ACCESS_CONTROL_BITS_MASK): Make unsigned.
	(SOM_SUBSPACE_MEMORY_RESIDENT, SOM_SUBSPACE_DUP_COMMON)
	(SOM_SUBSPACE_IS_COMMON, SOM_SUBSPACE_IS_LOADABLE)
	(SOM_SUBSPACE_QUADRANT_MASK, SOM_SUBSPACE_INITIALLY_FROZEN)
	(SOM_SUBSPACE_IS_FIRST, SOM_SUBSPACE_CODE_ONLY)
	(SOM_SUBSPACE_SORT_KEY_MASK, SOM_SUBSPACE_REPLICATE_INIT)
	(SOM_SUBSPACE_CONTINUATION, SOM_SUBSPACE_IS_TSPECIFIC)
	(SOM_SUBSPACE_IS_COMDAT): Likewise.

diff --git a/include/ChangeLog b/include/ChangeLog
index 4da03f8cd9bbe76e4529b32f48c82bc46ae597ab..c76d9cc89766b9e7975ebdcec47939772095449c 100644 (file)
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,15 @@
+2020-08-31  Alan Modra  <amodra@gmail.com>
+
+       PR 26457
+       * som/aout.h (SOM_SUBSPACE_ACCESS_CONTROL_BITS_MASK): Make unsigned.
+       (SOM_SUBSPACE_MEMORY_RESIDENT, SOM_SUBSPACE_DUP_COMMON)
+       (SOM_SUBSPACE_IS_COMMON, SOM_SUBSPACE_IS_LOADABLE)
+       (SOM_SUBSPACE_QUADRANT_MASK, SOM_SUBSPACE_INITIALLY_FROZEN)
+       (SOM_SUBSPACE_IS_FIRST, SOM_SUBSPACE_CODE_ONLY)
+       (SOM_SUBSPACE_SORT_KEY_MASK, SOM_SUBSPACE_REPLICATE_INIT)
+       (SOM_SUBSPACE_CONTINUATION, SOM_SUBSPACE_IS_TSPECIFIC)
+       (SOM_SUBSPACE_IS_COMDAT): Likewise.
+
 2020-08-28  Cooper Qu  <cooper.qu@linux.alibaba.com>
 
        * elf/csky.h (SHT_CSKY_ATTRIBUTES): Define.

diff --git a/include/som/aout.h b/include/som/aout.h
index 01b301fe01cbc1388b08f5847c41c6f957b22f6a..e3675cced7e44cc4117f08e0bba72b34e39c492f 100644 (file)
--- a/include/som/aout.h
+++ b/include/som/aout.h
@@ -157,22 +157,22 @@ struct som_external_subspace_dictionary_record
 };
 
 #define SOM_SUBSPACE_ACCESS_CONTROL_BITS_SH    25
-#define SOM_SUBSPACE_ACCESS_CONTROL_BITS_MASK  0x7f
-#define SOM_SUBSPACE_MEMORY_RESIDENT           (1 << 24)
-#define SOM_SUBSPACE_DUP_COMMON                        (1 << 23)
-#define SOM_SUBSPACE_IS_COMMON                 (1 << 22)
-#define SOM_SUBSPACE_IS_LOADABLE               (1 << 21)
+#define SOM_SUBSPACE_ACCESS_CONTROL_BITS_MASK  0x7fU
+#define SOM_SUBSPACE_MEMORY_RESIDENT           (1U << 24)
+#define SOM_SUBSPACE_DUP_COMMON                        (1U << 23)
+#define SOM_SUBSPACE_IS_COMMON                 (1U << 22)
+#define SOM_SUBSPACE_IS_LOADABLE               (1U << 21)
 #define SOM_SUBSPACE_QUADRANT_SH               19
-#define SOM_SUBSPACE_QUADRANT_MASK             0x3
-#define SOM_SUBSPACE_INITIALLY_FROZEN          (1 << 18)
-#define SOM_SUBSPACE_IS_FIRST                  (1 << 17)
-#define SOM_SUBSPACE_CODE_ONLY                 (1 << 16)
+#define SOM_SUBSPACE_QUADRANT_MASK             0x3U
+#define SOM_SUBSPACE_INITIALLY_FROZEN          (1U << 18)
+#define SOM_SUBSPACE_IS_FIRST                  (1U << 17)
+#define SOM_SUBSPACE_CODE_ONLY                 (1U << 16)
 #define SOM_SUBSPACE_SORT_KEY_SH               8
-#define SOM_SUBSPACE_SORT_KEY_MASK             0xff
-#define SOM_SUBSPACE_REPLICATE_INIT            (1 << 7)
-#define SOM_SUBSPACE_CONTINUATION              (1 << 6)
-#define SOM_SUBSPACE_IS_TSPECIFIC              (1 << 5)
-#define SOM_SUBSPACE_IS_COMDAT                 (1 << 4)
+#define SOM_SUBSPACE_SORT_KEY_MASK             0xffU
+#define SOM_SUBSPACE_REPLICATE_INIT            (1U << 7)
+#define SOM_SUBSPACE_CONTINUATION              (1U << 6)
+#define SOM_SUBSPACE_IS_TSPECIFIC              (1U << 5)
+#define SOM_SUBSPACE_IS_COMDAT                 (1U << 4)
 
 struct som_external_compilation_unit
 {