commit 763905a3ad8f98d33bd9319790a8d53904554265
Author: Yao Qi <yao@codesourcery.com>
Date:   Mon Oct 27 16:37:38 2014 +0800

    Fix trace file fails on powerpc64
    
    I see the following fails on powerpc64-linux,
    
    (gdb) target tfile tfile-basic.tf^M
    warning: Uploaded tracepoint 1 has no source location, using raw address^M
    Tracepoint 1 at 0x10012358^M
    Created tracepoint 1 for target's tracepoint 1 at 0x10012358.^M
    (gdb) PASS: gdb.trace/tfile.exp: target tfile tfile-basic.tf
    info trace^M
    Num     Type           Disp Enb Address            What^M
    1       tracepoint     keep y   0x0000000010012358 <write_basic_trace_file>^M
            installed on target^M
    (gdb) FAIL: gdb.trace/tfile.exp: info tracepoints on trace file
    
    -target-select tfile tfile-basic.tf^M
    =thread-group-started,id="i1",pid="1"^M
    =thread-created,id="1",group-id="i1"^M
    &"warning: Uploaded tracepoint 1 has no source location, using raw address\n"^M
    =breakpoint-created,bkpt={number="1",type="tracepoint",disp="keep",enabled="y",
    addr="0x0000000010012358",at="<write_basic_trace_file>",thread-groups=["i1"],
    times="0",installed="y",original-location="*0x10012358"}^M
    ~"Created tracepoint 1 for target's tracepoint 1 at 0x10012358.\n"^M
    ^connected^M
    (gdb) ^M
    FAIL: gdb.trace/mi-traceframe-changed.exp: tfile: select trace file
    
    These fails are caused by writing function descriptor address into trace
    file instead of function address.  This patch is to teach tfile.c to
    write function address on powerpc64 target.  With this patch applied,
    fails in tfile.exp and mi-traceframe-changed.exp are fixed.  Is it
    OK?
    
    gdb/testsuite:
    
    2014-10-27  Yao Qi  <yao@codesourcery.com>
    
    	* gdb.trace/tfile.c (adjust_function_address)
    	[__powerpc64__ && _CALL_ELF != 2]: Get function address from
    	function descriptor.

Index: gdb-7.6.1/gdb/testsuite/gdb.trace/tfile.c
===================================================================
--- gdb-7.6.1.orig/gdb/testsuite/gdb.trace/tfile.c
+++ gdb-7.6.1/gdb/testsuite/gdb.trace/tfile.c
@@ -107,6 +107,9 @@ adjust_function_address (uintptr_t func_
   /* Although Thumb functions are two-byte aligned, function
      pointers have the Thumb bit set.  Clear it.  */
   return func_addr & ~1;
+#elif defined __powerpc64__ && _CALL_ELF != 2
+  /* Get function address from function descriptor.  */
+  return *(uintptr_t *) func_addr;
 #else
   return func_addr;
 #endif