[PATCH 2/3] Fix -Werror=pointer-sign warnings

[Yao Qi <yao@codesourcery.com>]

../../../git/gdb/gnu-nat.c: In function 'gnu_read_inferior':
../../../git/gdb/gnu-nat.c:2282:3: error: pointer targets in passing argument 5 of 'vm_read' differ in signedness [-Werror=pointer-sign]
In file included from /home/yao/Software/hurd-toolchain/bin/../i686-pc-gnu/libc/usr/include/mach.h:38:0,
                 from ./nm.h:23,
                 from ../../../git/gdb/defs.h:500,
                 from ../../../git/gdb/gnu-nat.c:23:
/home/yao/Software/hurd-toolchain/bin/../i686-pc-gnu/libc/usr/include/mach/mach_interface.h:843:15: note: expected 'mach_msg_type_number_t *' but argument is of type 'int *'
../../../git/gdb/gnu-nat.c: In function 'gnu_write_inferior':
../../../git/gdb/gnu-nat.c:2339:4: error: pointer targets in passing argument 5 of 'vm_read' differ in signedness [-Werror=pointer-sign]
In file included from /home/yao/Software/hurd-toolchain/bin/../i686-pc-gnu/libc/usr/include/mach.h:38:0,
                 from ./nm.h:23,
                 from ../../../git/gdb/defs.h:500,
                 from ../../../git/gdb/gnu-nat.c:23:
/home/yao/Software/hurd-toolchain/bin/../i686-pc-gnu/libc/usr/include/mach/mach_interface.h:843:15: note: expected 'mach_msg_type_number_t *' but argument is of type 'int *'

This patch fixes these warnings.

gdb:

2014-02-07  Yao Qi  <yao@codesourcery.com>

	* gnu-nat.c (gnu_read_inferior): Change 'copy_count' type to
	mach_msg_type_number_t.
	(gnu_write_inferior): Likewise.
---
 gdb/gnu-nat.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/gdb/gnu-nat.c b/gdb/gnu-nat.c
index 6e65446..d5ce416 100644
--- a/gdb/gnu-nat.c
+++ b/gdb/gnu-nat.c
@@ -2276,7 +2276,7 @@ gnu_read_inferior (task_t task, CORE_ADDR addr, gdb_byte *myaddr, int length)
   vm_size_t aligned_length =
   (vm_size_t) round_page (addr + length) - low_address;
   pointer_t copied;
-  int copy_count;
+  mach_msg_type_number_t copy_count;
 
   /* Get memory from inferior with page aligned addresses.  */
   err = vm_read (task, low_address, aligned_length, &copied, &copy_count);
@@ -2323,7 +2323,7 @@ gnu_write_inferior (task_t task, CORE_ADDR addr,
   vm_size_t aligned_length =
   (vm_size_t) round_page (addr + length) - low_address;
   pointer_t copied;
-  int copy_count;
+  mach_msg_type_number_t copy_count;
   int deallocate = 0;
 
   char *errstr = "Bug in gnu_write_inferior";
-- 
1.7.7.6