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2009-10-26 Tristan Gingold <gingold@adacore.com> 

* avr-tdep.c (avr_push_dummy_call): Handle avr6 architecture.
	Fix the returned value.  Fix style.
This commit is contained in:
Tristan Gingold 2009-10-26 16:53:57 +00:00
parent 599ec1349a
commit 6d1915d4fa
2 changed files with 21 additions and 11 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2009-10-26 Tristan Gingold <gingold@adacore.com>
* avr-tdep.c (avr_push_dummy_call): Handle avr6 architecture.
Fix the returned value. Fix style.
2009-10-26 Joel Brobecker <brobecker@adacore.com>
* MAINTAINERS (Responsible Maintainers): Add info about the microblaze

27
gdb/avr-tdep.c
View File

@ -1181,7 +1181,8 @@ avr_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
{
enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
int i;
unsigned char buf[2];
unsigned char buf[3];
int call_length = gdbarch_tdep (gdbarch)->call_length;
CORE_ADDR return_pc = avr_convert_iaddr_to_raw (bp_addr);
int regnum = AVR_ARGN_REGNUM;
struct stack_item *si = NULL;
@ -1219,11 +1220,9 @@ avr_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
regnum--;
val = extract_unsigned_integer (contents, len, byte_order);
for (j=0; j<len; j++)
{
regcache_cooked_write_unsigned (regcache, regnum--,
val >> (8*(len-j-1)));
}
for (j = 0; j < len; j++)
regcache_cooked_write_unsigned
(regcache, regnum--, val >> (8 * (len - j - 1)));
}
/* No registers available, push the args onto the stack. */
else
@ -1245,17 +1244,23 @@ avr_push_dummy_call (struct gdbarch *gdbarch, struct value *function,
/* Set the return address. For the avr, the return address is the BP_ADDR.
Need to push the return address onto the stack noting that it needs to be
in big-endian order on the stack. */
buf[0] = (return_pc >> 8) & 0xff;
buf[1] = return_pc & 0xff;
for (i = 1; i <= call_length; i++)
{
buf[call_length - i] = return_pc & 0xff;
return_pc >>= 8;
}
sp -= 2;
write_memory (sp + 1, buf, 2); /* Add one since pushes are post decr ops. */
sp -= call_length;
/* Use 'sp + 1' since pushes are post decr ops. */
write_memory (sp + 1, buf, call_length);
/* Finally, update the SP register. */
regcache_cooked_write_unsigned (regcache, AVR_SP_REGNUM,
avr_convert_saddr_to_raw (sp));
return sp;
/* Return SP value for the dummy frame, where the return address hasn't been
pushed. */
return sp + call_length;
}
/* Initialize the gdbarch structure for the AVR's. */