Initial script to extract and display formatted trace in Simics

Change-Id: I18265c182f01057841af094e8e32760caf3cb888
Reviewed-on: http://gfwr801.rchland.ibm.com:8080/gerrit/87
Tested-by: Jenkins Server
Reviewed-by: Andrew J. Geissler <andrewg@us.ibm.com>

1 files changed, 105 insertions, 0 deletions

diff --git a/src/build/trace/traceHB.py b/src/build/trace/traceHB.py
new file mode 100755
index 000000000..827c1a2bb
--- /dev/null
+++ b/src/build/trace/traceHB.py
@@ -0,0 +1,105 @@
+# *** traceHB.py
+#
+# Script to extract and display formatted trace in simics
+
+# *** Usage
+#
+# On simics console:
+# 1. Load file
+# simics> run-python-file <gitrepo>/src/build/trace/traceHB.py
+# 2. Display global trace buffer
+# simics> @traceHB("<gitrepo>/img/hbicore.syms", <path>/trexStringFile")
+# 3. Display kernel printk buffer
+# simics> @printkHB("<gitrepo>/img/hbicore.syms")
+#
+# Example:
+# run-python-file /gsa/ausgsa/home/c/a/camvanng/HOSTBOOT/src/build/trace/traceHB.py
+# @traceHB("/gsa/ausgsa/home/c/a/camvanng/HOSTBOOT/img/hbicore.syms","/gsa/ausgsa/home/c/a/camvanng/HOSTBOOT/obj/modules/example/example.o.hash")
+# @printkHB("/gsa/ausgsa/home/c/a/camvanng/HOSTBOOT/img/hbicore.syms")
+
+# *** Change History
+#
+# 05/10/2011    camvanng    Created
+
+import os,sys
+import conf
+import configuration
+import cli
+
+# Function to dump the global trace buffer
+def traceHB(symsFile, trexStringFile):
+
+    print
+
+    #Find location of g_trac_global variable from the image's .syms file
+    #i.e. grep g_trac_global <gitrepo>/img/hbicore.syms
+    for line in open(symsFile):
+        if "g_trac_global" in line:         #if found
+            #print line
+            x = line.split(",")
+            addr = int(x[1],16)             #address of g_trac_global
+            #print "addr = 0x%x"%(addr)
+            size = int(x[3],16)             #size of g_trac_global
+            #print "size = 0x%x"%(size)
+
+            #get address of global trace buffer
+            string = "phys_mem.x 0x%x 0x%x"%(addr,size)
+            #print string
+            result,message = quiet_run_command(string)
+            #print message
+            lst = message.split()
+            #print lst
+            addr_str = ""
+            for i in range(1,5):
+                addr_str += lst[i]
+            #print addr_str
+            addr_global_trace_buffer = int(addr_str,16)     #address of global trace buffer
+
+            #save global trace buffer to <sandbox>/simics/trace.out
+            string = "memory_image_ln0.save trace.out 0x%x 0x1000"%(addr_global_trace_buffer)
+            #print string
+            result = run_command(string)
+            #print result
+
+            #display formatted trace
+            string = 'fsp-trace -s %s trace.out'%(trexStringFile)
+            #print string
+            os.system(string)
+
+            print
+            break
+    return
+
+
+# Function to dump the kernel printk buffer
+def printkHB(symsFile):
+
+    print
+
+    #Find location of the kernel_printk_buffer variable from the image's .syms file
+    #i.e. grep kernel_printk_buffer <gitrepo>/img/hbicore.syms
+    for line in open(symsFile):
+        if "kernel_printk_buffer" in line:  #if found
+            #print line
+            x = line.split(",")
+            addr = int(x[1],16)             #address of kernel_printk_buffer
+            #print "addr = 0x%x"%(addr)
+            size = int(x[3],16)             #size of kernel_printk_buffer
+            #print "size = 0x%x"%(size)
+
+            #save kernel printk buffer to <sandbox>/simics/printk.out
+            string = "memory_image_ln0.save printk.out 0x%x 0x%x"%(addr,size)
+            #print string
+            result = run_command(string)
+            #print result
+
+            #display buffer
+            #for line in open("printk.out"):
+            #    print line
+            #file = open("printk.out")
+            #print file.read()
+            os.system('cat printk.out')
+
+            break
+    return
+