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[binutils-gdb] rx-tdep.c: Use target_read_code instead of target_read_memory.


https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=a0e28e54675fd92e73df71fed5d4f6c718f40102

commit a0e28e54675fd92e73df71fed5d4f6c718f40102
Author: Kevin Buettner <kevinb@redhat.com>
Date:   Thu Jul 9 16:05:31 2015 -0700

    rx-tdep.c: Use target_read_code instead of target_read_memory.
    
    This change causes the prologue scanner and the frame type scanner in
    rx-tdep.c to use target_read_code() instead of target_read_memory().
    This change allows these instruction scanners to operate much more
    quickly due to the fact that target_read_code() can potentially read
    from a cache maintained by GDB.
    
    gdb/ChangeLog:
    
    	* rx-tdep.c (rx_get_opcode_byte): Use target_read_code instead
    	of target_read_memory.

Diff:
---
 gdb/ChangeLog | 5 +++++
 gdb/rx-tdep.c | 2 +-
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 8ab1330..5070428 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,8 @@
+2015-07-10  Kevin Buettner  <kevinb@redhat.com>
+
+	* rx-tdep.c (rx_get_opcode_byte): Use target_read_code instead
+	of target_read_memory.
+
 2015-07-10  Andrew Burgess  <andrew.burgess@embecosm.com>
 
 	* tui/tui-win.c (tui_set_win_height): Use a cleanup to free the
diff --git a/gdb/rx-tdep.c b/gdb/rx-tdep.c
index 8442c76..0bd91ff 100644
--- a/gdb/rx-tdep.c
+++ b/gdb/rx-tdep.c
@@ -204,7 +204,7 @@ rx_get_opcode_byte (void *handle)
   int status;
   gdb_byte byte;
 
-  status = target_read_memory (opcdata->pc, &byte, 1);
+  status = target_read_code (opcdata->pc, &byte, 1);
   if (status == 0)
     {
       opcdata->pc += 1;


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