+2007-12-20 David Ung <davidu@mips.com>
+ Maciej W. Rozycki <macro@mips.com>
+
+ * mips-tdep.c (mips_n32n64_push_dummy_call): Sign-extend
+ integers and 32-bit pointers as required by the ABI.
+
2007-12-20 Joel Brobecker <brobecker@adacore.com>
* symtab.h: Remove "defs.h" #include.
purpose register. */
if (argreg <= MIPS_LAST_ARG_REGNUM)
{
- LONGEST regval =
- extract_unsigned_integer (val, partial_len);
+ LONGEST regval;
+
+ /* Sign extend pointers, 32-bit integers and signed
+ 16-bit and 8-bit integers; everything else is taken
+ as is. */
+
+ if ((partial_len == 4
+ && (typecode == TYPE_CODE_PTR
+ || typecode == TYPE_CODE_INT))
+ || (partial_len < 4
+ && typecode == TYPE_CODE_INT
+ && !TYPE_UNSIGNED (arg_type)))
+ regval = extract_signed_integer (val, partial_len);
+ else
+ regval = extract_unsigned_integer (val, partial_len);
/* A non-floating-point argument being passed in a
general register. If a struct or union, and if