Replace some $ARCH_{get,set}_pc with linux_{get,set}_pc_32bit

This patch adds a pair of new functions linux_get_pc_32bit and
linux_set_pc_32bit which get and set 32-bit register "pc" from
regcache.  This function can be used some targets and these own
$ARCH_{get,set}_pc are replaced by linux_{get,set}_pc_32bit
respectively.

This patch touches many targets, but I only have arm board to
test and no regression.  I also rebuilt nios2-linux GDBserver.
If it is right to go, I'll post the 64-bit counterpart later.

gdb/gdbserver:

2016-01-18  Yao Qi  <yao.qi@linaro.org>

	* linux-arm-low.c (debug_threads): Remove declaration.
	(arm_get_pc, arm_set_pc): Remove.
	(the_low_target): Use linux_get_pc_32bit and
	linux_set_pc_32bit.
	* linux-bfin-low.c (bfin_get_pc, bfin_set_pc): Remove.
	(the_low_target): Use linux_get_pc_32bit and
	linux_set_pc_32bit.
	* linux-cris-low.c (debug_threads): Remove declaration.
	(cris_get_pc, cris_set_pc,): Remove.
	(the_low_target): Use linux_get_pc_32bit and
	linux_set_pc_32bit.
	* linux-crisv32-low.c (debug_threads): Remove declaration.
	(cris_get_pc, cris_set_pc): Remove.
	(the_low_target): Use linux_get_pc_32bit and
	linux_set_pc_32bit.
	* linux-low.c: Include inttypes.h.
	(linux_get_pc_32bit, linux_set_pc_32bit): New functions.
	* linux-low.h (linux_get_pc_32bit, linux_set_pc_32bit): Declare.
	* linux-m32r-low.c (m32r_get_pc, m32r_set_pc): Remove.
	(the_low_target): Use linux_get_pc_32bit and
	linux_set_pc_32bit.
	* linux-m68k-low.c (m68k_get_pc, m68k_set_pc): Remove.
	(the_low_target): Use linux_get_pc_32bit and
	linux_set_pc_32bit.
	* linux-nios2-low.c (nios2_get_pc, nios2_set_pc): Remove.
	(the_low_target): Use linux_get_pc_32bit and
	linux_set_pc_32bit.
	* linux-sh-low.c (sh_get_pc, sh_set_pc): Remove.
	(the_low_target): Use linux_get_pc_32bit and
	linux_set_pc_32bit.
	* linux-xtensa-low.c (xtensa_get_pc, xtensa_set_pc): Remove.
	(the_low_target): Use linux_get_pc_32bit and
	linux_set_pc_32bit.

1 files changed, 2 insertions, 21 deletions

diff --git a/gdb/gdbserver/linux-cris-low.c b/gdb/gdbserver/linux-cris-low.c
index ca0f0ff..45d4299 100644
--- a/gdb/gdbserver/linux-cris-low.c
+++ b/gdb/gdbserver/linux-cris-low.c
@@ -59,25 +59,6 @@ cris_cannot_fetch_register (int regno)
   return (regno >= cris_num_regs);
 }
 
-extern int debug_threads;
-
-static CORE_ADDR
-cris_get_pc (struct regcache *regcache)
-{
-  unsigned long pc;
-  collect_register_by_name (regcache, "pc", &pc);
-  if (debug_threads)
-    debug_printf ("stop pc is %08lx\n", pc);
-  return pc;
-}
-
-static void
-cris_set_pc (struct regcache *regcache, CORE_ADDR pc)
-{
-  unsigned long newpc = pc;
-  supply_register_by_name (regcache, "pc", &newpc);
-}
-
 static const unsigned short cris_breakpoint = 0xe938;
 #define cris_breakpoint_len 2
 
@@ -135,8 +116,8 @@ struct linux_target_ops the_low_target = {
   cris_cannot_fetch_register,
   cris_cannot_store_register,
   NULL, /* fetch_register */
-  cris_get_pc,
-  cris_set_pc,
+  linux_get_pc_32bit,
+  linux_set_pc_32bit,
   NULL, /* breakpoint_kind_from_pc */
   cris_sw_breakpoint_from_kind,
   NULL, /* get_next_pcs */