2 files changed, 23 insertions, 4 deletions

diff --git a/scripts/recordmcount.pl b/scripts/recordmcount.pl
index 91033e67321e..7109e2b5bc0a 100755
--- a/scripts/recordmcount.pl
+++ b/scripts/recordmcount.pl
@@ -226,6 +226,26 @@ if ($arch eq "x86_64") {
     if ($is_module eq "0") {
         $cc .= " -mconstant-gp";
     }
+} elsif ($arch eq "sparc64") {
+    # In the objdump output there are giblets like:
+    # 0000000000000000 <igmp_net_exit-0x18>:
+    # As there's some data blobs that get emitted into the
+    # text section before the first instructions and the first
+    # real symbols.  We don't want to match that, so to combat
+    # this we use '\w' so we'll match just plain symbol names,
+    # and not those that also include hex offsets inside of the
+    # '<>' brackets.  Actually the generic function_regex setting
+    # could safely use this too.
+    $function_regex = "^([0-9a-fA-F]+)\\s+<(\\w*?)>:";
+
+    # Sparc64 calls '_mcount' instead of plain 'mcount'.
+    $mcount_regex = "^\\s*([0-9a-fA-F]+):.*\\s_mcount\$";
+
+    $alignment = 8;
+    $type = ".xword";
+    $ld .= " -m elf64_sparc";
+    $cc .= " -m64";
+    $objcopy .= " -O elf64-sparc";
 } else {
     die "Arch $arch is not supported with CONFIG_FTRACE_MCOUNT_RECORD";
 }
diff --git a/scripts/tracing/draw_functrace.py b/scripts/tracing/draw_functrace.py
index 902f9a992620..db40fa04cd51 100644
--- a/scripts/tracing/draw_functrace.py
+++ b/scripts/tracing/draw_functrace.py
@@ -12,10 +12,9 @@ calls. Only the functions's names and the the call time are provided.
 
 Usage:
         Be sure that you have CONFIG_FUNCTION_TRACER
-        # mkdir /debugfs
-        # mount -t debug debug /debug
-        # echo function > /debug/tracing/current_tracer
-        $ cat /debug/tracing/trace_pipe > ~/raw_trace_func
+        # mount -t debugfs nodev /sys/kernel/debug
+        # echo function > /sys/kernel/debug/tracing/current_tracer
+        $ cat /sys/kernel/debug/tracing/trace_pipe > ~/raw_trace_func
         Wait some times but not too much, the script is a bit slow.
         Break the pipe (Ctrl + Z)
         $ scripts/draw_functrace.py < raw_trace_func > draw_functrace