From 427202d96790f1b659e0fa9485b8128c95dc48db Mon Sep 17 00:00:00 2001 From: Alan Modra Date: Wed, 2 Sep 2020 10:33:07 +0930 Subject: [PATCH] ubsan: bfin-dis.c:160 shift exponent 32 is too large * bfin-dis.c (MASKBITS): Use SIGNBIT. --- opcodes/ChangeLog | 4 ++++ opcodes/bfin-dis.c | 2 +- 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/opcodes/ChangeLog b/opcodes/ChangeLog index 8481a13e08..1c7e4cb12d 100644 --- a/opcodes/ChangeLog +++ b/opcodes/ChangeLog @@ -1,3 +1,7 @@ +2020-09-02 Alan Modra + + * bfin-dis.c (MASKBITS): Use SIGNBIT. + 2020-09-02 Cooper Qu * csky-opc.h (csky_v2_opcodes): Move divul and divsl diff --git a/opcodes/bfin-dis.c b/opcodes/bfin-dis.c index 4f66f12e3c..3eb6087a3c 100644 --- a/opcodes/bfin-dis.c +++ b/opcodes/bfin-dis.c @@ -34,7 +34,7 @@ typedef long TIword; #define SIGNBIT(bits) (1ul << ((bits) - 1)) -#define MASKBITS(val, bits) ((val) & ((1ul << (bits)) - 1)) +#define MASKBITS(val, bits) ((val) & ((SIGNBIT (bits) << 1) - 1)) #define SIGNEXTEND(v, n) ((MASKBITS (v, n) ^ SIGNBIT (n)) - SIGNBIT (n)) #include "disassemble.h" -- 2.34.1