Re: [PATCH 10/11] Add XTENSA_MAX_REGISTER_SIZE

[Alan Hayward <Alan.Hayward@arm.com>]

> On 26 Apr 2017, at 10:59, Alan Hayward <Alan.Hayward@arm.com> wrote:
> 
> 
>> On 25 Apr 2017, at 16:39, Yao Qi <qiyaoltc@gmail.com> wrote:
>> 
>> Alan Hayward <Alan.Hayward@arm.com> writes:
>> 

I’ve rebased this patch due to Yao’s unit test changes.
XTENSA_MAX_REGISTER_SIZE is set to 64 to ensure nothing breaks.


I don't have a XTENSA machine to test on.
Tested on a --enable-targets=all and asan build using
make check with board files unix, native-gdbserver and unittest

Ok to commit?

Alan.

2017-06-08  Alan Hayward  <alan.hayward@arm.com>

	* xtensa-tdep.c (XTENSA_MAX_REGISTER_SIZE): Add.
	(xtensa_register_write_masked): Use XTENSA_MAX_REGISTER_SIZE.
	(xtensa_register_read_masked): Likewise.


diff --git a/gdb/xtensa-tdep.c b/gdb/xtensa-tdep.c
index f9e858473a409ff082d30f9ff474d48da63903e3..f875f20d32b68abc37e3db37ab3e6053918536e5 100644
--- a/gdb/xtensa-tdep.c
+++ b/gdb/xtensa-tdep.c
@@ -120,6 +120,9 @@ static unsigned int xtensa_debug_level = 0;
 #define PS_WOE			(1<<18)
 #define PS_EXC			(1<<4)

+/* Big enough to hold the size of the largest register in bytes.  */
+#define XTENSA_MAX_REGISTER_SIZE	64
+
 static int
 windowing_enabled (struct gdbarch *gdbarch, unsigned int ps)
 {
@@ -370,7 +373,7 @@ static void
 xtensa_register_write_masked (struct regcache *regcache,
 			      xtensa_register_t *reg, const gdb_byte *buffer)
 {
-  unsigned int value[(MAX_REGISTER_SIZE + 3) / 4];
+  unsigned int value[(XTENSA_MAX_REGISTER_SIZE + 3) / 4];
   const xtensa_mask_t *mask = reg->mask;

   int shift = 0;		/* Shift for next mask (mod 32).  */
@@ -454,7 +457,7 @@ static enum register_status
 xtensa_register_read_masked (struct regcache *regcache,
 			     xtensa_register_t *reg, gdb_byte *buffer)
 {
-  unsigned int value[(MAX_REGISTER_SIZE + 3) / 4];
+  unsigned int value[(XTENSA_MAX_REGISTER_SIZE + 3) / 4];
   const xtensa_mask_t *mask = reg->mask;

   int shift = 0;