From: Alan Hayward <alan.hayward@arm.com>
Date: Mon, 27 Feb 2017 09:58:35 +0000 (+0000)
Subject: Remove MAX_REGISTER_SIZE from remote.c
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8e3681243c642d667164bd23ae9a376620da0780;p=binutils-gdb.git

Remove MAX_REGISTER_SIZE from remote.c

gdb/
	* regcache.c (regcache_raw_update): New function.
	(regcache_raw_read): Move code to regcache_raw_update.
	* regcache.h (regcache_raw_update): New declaration.
	* remote.c (remote_prepare_to_store): Call regcache_raw_update.
---

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index ccfb4e23c94..c9fdd66f27f 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,10 @@
+2017-02-26  Alan Hayward  <alan.hayward@arm.com>
+
+	* regcache.c (regcache_raw_update): New function.
+	(regcache_raw_read): Move code to regcache_raw_update.
+	* regcache.h (regcache_raw_update): New declaration.
+	* remote.c (remote_prepare_to_store): Call regcache_raw_update.
+
 2017-02-26  Jan Kratochvil  <jan.kratochvil@redhat.com>
 
 	* dwarf2read.c (create_debug_type_hash_table): Initialize
diff --git a/gdb/regcache.c b/gdb/regcache.c
index eed1bd84c8a..0728a03b65d 100644
--- a/gdb/regcache.c
+++ b/gdb/regcache.c
@@ -642,15 +642,17 @@ registers_changed (void)
   alloca (0);
 }
 
-enum register_status
-regcache_raw_read (struct regcache *regcache, int regnum, gdb_byte *buf)
+void
+regcache_raw_update (struct regcache *regcache, int regnum)
 {
-  gdb_assert (regcache != NULL && buf != NULL);
+  gdb_assert (regcache != NULL);
   gdb_assert (regnum >= 0 && regnum < regcache->descr->nr_raw_registers);
+
   /* Make certain that the register cache is up-to-date with respect
      to the current thread.  This switching shouldn't be necessary
      only there is still only one target side register cache.  Sigh!
      On the bright side, at least there is a regcache object.  */
+
   if (!regcache->readonly_p
       && regcache_register_status (regcache, regnum) == REG_UNKNOWN)
     {
@@ -666,6 +668,13 @@ regcache_raw_read (struct regcache *regcache, int regnum, gdb_byte *buf)
       if (regcache->register_status[regnum] == REG_UNKNOWN)
 	regcache->register_status[regnum] = REG_UNAVAILABLE;
     }
+}
+
+enum register_status
+regcache_raw_read (struct regcache *regcache, int regnum, gdb_byte *buf)
+{
+  gdb_assert (buf != NULL);
+  regcache_raw_update (regcache, regnum);
 
   if (regcache->register_status[regnum] != REG_VALID)
     memset (buf, 0, regcache->descr->sizeof_register[regnum]);
diff --git a/gdb/regcache.h b/gdb/regcache.h
index e5a7cf55327..e1495f61426 100644
--- a/gdb/regcache.h
+++ b/gdb/regcache.h
@@ -50,6 +50,10 @@ extern struct address_space *get_regcache_aspace (const struct regcache *);
 enum register_status regcache_register_status (const struct regcache *regcache,
 					       int regnum);
 
+/* Make certain that the register REGNUM in REGCACHE is up-to-date.  */
+
+void regcache_raw_update (struct regcache *regcache, int regnum);
+
 /* Transfer a raw register [0..NUM_REGS) between core-gdb and the
    regcache.  The read variants return the status of the register.  */
 
diff --git a/gdb/remote.c b/gdb/remote.c
index 3befbd3d154..87fb6e02ea3 100644
--- a/gdb/remote.c
+++ b/gdb/remote.c
@@ -7759,7 +7759,6 @@ remote_prepare_to_store (struct target_ops *self, struct regcache *regcache)
 {
   struct remote_arch_state *rsa = get_remote_arch_state ();
   int i;
-  gdb_byte buf[MAX_REGISTER_SIZE];
 
   /* Make sure the entire registers array is valid.  */
   switch (packet_support (PACKET_P))
@@ -7769,7 +7768,7 @@ remote_prepare_to_store (struct target_ops *self, struct regcache *regcache)
       /* Make sure all the necessary registers are cached.  */
       for (i = 0; i < gdbarch_num_regs (get_regcache_arch (regcache)); i++)
 	if (rsa->regs[i].in_g_packet)
-	  regcache_raw_read (regcache, rsa->regs[i].regnum, buf);
+	  regcache_raw_update (regcache, rsa->regs[i].regnum);
       break;
     case PACKET_ENABLE:
       break;