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2002-06-06 Michael Snyder <msnyder@redhat.com>

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* d10v-tdep.c (d10v_store_return_value): Char return values
	must be shifted over by one byte in R0.
        (d10v_extract_return_value): Delete extra braces, re-indent.
This commit is contained in:
Michael Snyder 2002-06-06 18:47:35 +00:00
parent 9691d64f9a
commit 3d79a47c75
2 changed files with 44 additions and 21 deletions
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6
gdb/ChangeLog
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@ -1,3 +1,9 @@
2002-06-06 Michael Snyder <msnyder@redhat.com>
* d10v-tdep.c (d10v_store_return_value): Char return values
must be shifted over by one byte in R0.
(d10v_extract_return_value): Delete extra braces, re-indent.
2002-06-06 Elena Zannoni <ezannoni@redhat.com>
* d10v-tdep.c (d10v_read_sp, d10v_read_fp): Add prototype.

59
gdb/d10v-tdep.c
View file

@ -482,9 +482,20 @@ d10v_store_struct_return (CORE_ADDR addr, CORE_ADDR sp)
static void
d10v_store_return_value (struct type *type, char *valbuf)
{
write_register_bytes (REGISTER_BYTE (RET1_REGNUM),
valbuf,
TYPE_LENGTH (type));
char tmp = 0;
/* Only char return values need to be shifted right within R0. */
if (TYPE_LENGTH (type) == 1
&& TYPE_CODE (type) == TYPE_CODE_INT)
{
write_register_bytes (REGISTER_BYTE (RET1_REGNUM),
&tmp, 1); /* zero the high byte */
write_register_bytes (REGISTER_BYTE (RET1_REGNUM) + 1,
valbuf, 1); /* copy the low byte */
}
else
write_register_bytes (REGISTER_BYTE (RET1_REGNUM),
valbuf,
TYPE_LENGTH (type));
}
/* Extract from an array REGBUF containing the (raw) register state
@ -1137,25 +1148,31 @@ d10v_extract_return_value (struct type *type, char regbuf[REGISTER_BYTES],
char *valbuf)
{
int len;
/* printf("RET: TYPE=%d len=%d r%d=0x%x\n", TYPE_CODE (type), TYPE_LENGTH (type), RET1_REGNUM - R0_REGNUM, (int) extract_unsigned_integer (regbuf + REGISTER_BYTE(RET1_REGNUM), REGISTER_RAW_SIZE (RET1_REGNUM))); */
#if 0
printf("RET: TYPE=%d len=%d r%d=0x%x\n", TYPE_CODE (type),
TYPE_LENGTH (type), RET1_REGNUM - R0_REGNUM,
(int) extract_unsigned_integer (regbuf + REGISTER_BYTE(RET1_REGNUM),
REGISTER_RAW_SIZE (RET1_REGNUM)));
#endif
len = TYPE_LENGTH (type);
if (len == 1)
{
len = TYPE_LENGTH (type);
if (len == 1)
{
unsigned short c = extract_unsigned_integer (regbuf + REGISTER_BYTE (RET1_REGNUM), REGISTER_RAW_SIZE (RET1_REGNUM));
store_unsigned_integer (valbuf, 1, c);
}
else if ((len & 1) == 0)
memcpy (valbuf, regbuf + REGISTER_BYTE (RET1_REGNUM), len);
else
{
/* For return values of odd size, the first byte is in the
least significant part of the first register. The
remaining bytes in remaining registers. Interestingly,
when such values are passed in, the last byte is in the
most significant byte of that same register - wierd. */
memcpy (valbuf, regbuf + REGISTER_BYTE (RET1_REGNUM) + 1, len);
}
unsigned short c;
c = extract_unsigned_integer (regbuf + REGISTER_BYTE (RET1_REGNUM),
REGISTER_RAW_SIZE (RET1_REGNUM));
store_unsigned_integer (valbuf, 1, c);
}
else if ((len & 1) == 0)
memcpy (valbuf, regbuf + REGISTER_BYTE (RET1_REGNUM), len);
else
{
/* For return values of odd size, the first byte is in the
least significant part of the first register. The
remaining bytes in remaining registers. Interestingly,
when such values are passed in, the last byte is in the
most significant byte of that same register - wierd. */
memcpy (valbuf, regbuf + REGISTER_BYTE (RET1_REGNUM) + 1, len);
}
}