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-rw-r--r--gdb/utils.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/gdb/utils.c b/gdb/utils.c
index a2e933b..fe9a674 100644
--- a/gdb/utils.c
+++ b/gdb/utils.c
@@ -2708,10 +2708,11 @@ address_significant (gdbarch *gdbarch, CORE_ADDR addr)
/* Clear insignificant bits of a target address and sign extend resulting
address, avoiding shifts larger or equal than the width of a CORE_ADDR.
The local variable ADDR_BIT stops the compiler reporting a shift overflow
- when it won't occur. */
+ when it won't occur. Skip updating of target address if current target
+ has not set gdbarch significant_addr_bit. */
int addr_bit = gdbarch_significant_addr_bit (gdbarch);
- if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT))
+ if (addr_bit && (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT)))
{
CORE_ADDR sign = (CORE_ADDR) 1 << (addr_bit - 1);
addr &= ((CORE_ADDR) 1 << addr_bit) - 1;