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# IBM_PROLOG_BEGIN_TAG
# This is an automatically generated prolog.
#
# $Source: src/tools/debug/simics-debug-framework.py $
#
# OpenPOWER sbe Project
#
# Contributors Listed Below - COPYRIGHT 2016,2017
# [+] International Business Machines Corp.
#
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied. See the License for the specific language governing
# permissions and limitations under the License.
#
# IBM_PROLOG_END_TAG
import os
import os.path
import subprocess
import re
import random
import sys
import imp
import struct
testIstepAuto = imp.load_source("testIstepAuto", os.environ['SBE_TOOLS_PATH'] + "/testIstepAuto.py")
err = False
syms = {};
def check_sbe_tools_path ():
global SBE_TOOLS_PATH
SBE_TOOLS_PATH = os.environ['SBE_TOOLS_PATH'];
def get_dd_level(procNr = 0):
cmd = "pipe \"p9Proc"+str(procNr)+".sbe.mibo_space.map\" \"cat > temp.map\""
( rc, out ) = quiet_run_command( cmd, output_modes.regular )
if ( rc ):
print "simics ERROR running %s: %d "%( cmd, rc )
ddlevel = 'DD1'
with open('temp.map', 'r') as f:
map = f.read()
map = map.split()
if map[map.index('p9Proc0.sbe.fi2c_bo:fi2cfsm')-1] == '0x80000000':
ddlevel = "DD1"
if map[map.index('p9Proc0.sbe.fi2c_bo:fi2cfsm')-1] == '0xff800000':
ddlevel = "DD2"
print "running image - ["+ddlevel+"]"
return ddlevel
def register_sbe_debug_framework_tools():
check_sbe_tools_path ()
fillSymTable()
# Create command hook.
new_command("sbe-istep",testIstepAuto.sbe_istep_func,
args = [arg(float_t, "Major/start istep"), arg(float_t, "Minor/end istep")],
alias = "istep",
type = ["sbe-commands"],
short = "Runs the debug framework for istep ",
doc = "")
new_command("sbe-trace", collectTrace,
args = [arg(int_t, "procNr")],
alias = "strace",
type = ["sbe-commands"],
short = "Runs the debug framework for trace ",
doc = "")
new_command("sbe-stack", collectStackUsage,
args = [arg(int_t, "procNr")],
alias = "sstack",
type = ["sbe-commands"],
short = "Runs the debug framework for stack usage ",
doc = "")
new_command("sbe-ddlevel", get_dd_level,
args = [arg(int_t, "procNr")],
alias = "sddlevel",
type = ["sbe-commands"],
short = "Runs the debug framework for dd level ",
doc = "")
print "SBE Debug Framework: Registered tool:", "sbe-istep"
print "SBE Debug Framework: Registered tool:", "sbe-trace"
print "SBE Debug Framework: Registered tool:", "sbe-stack"
print "SBE Debug Framework: Registered tool:", "sbe-ddlevel"
def fillSymTable():
symFile = SBE_TOOLS_PATH + "/sbe_"+get_dd_level()+".syms"
f = open( symFile, 'r')
for line in f:
words = line.split()
if( len( words ) == 4 ):
syms[words[3]] = [words[0], words[1]]
# Print least available stack of each thread in SBE during a Run.
#
# Logic is - during init, ppe kernel fills the stack memory with '0xEFCDAB03'.
# So while traversing the stack, starting from lowest memory to the top,
# the first memory address where the pattern('0xEFCDAB03') is broken,
# will be the deepest stack usage point of tht thread during the run
def collectStackUsage ( procNr ):
threads = ('sbeSyncCommandProcessor_stack',
'sbeCommandReceiver_stack',
'sbe_Kernel_NCInt_stack',
'sbeAsyncCommandProcessor_stack')
print "==================================Stack usage==================================="
# Dump stack memory to binary files
for thread in threads:
cmd = "pipe \"p9Proc" + `procNr` + ".sbe.mibo_space.x 0x" + syms[thread][0] + " 0x"+syms[thread][1]+"\" \"sed 's/^p:0x........ //g' | sed 's/ ................$//g' | sed 's/ //g' | xxd -r -p> "+thread+"\""
( rc, out ) = quiet_run_command( cmd, output_modes.regular )
if ( rc ):
print "simics ERROR running %s: %d "%( cmd, rc )
print "Thread".ljust(40)+"Least Available[bytes]".ljust(30)+"Max usage[%]"
for thread in threads:
with open(thread, "rb") as f:
word = struct.unpack('I', f.read(4))[0]
leastAvailable = 0
while (1):
if (word == int("0xEFCDAB03", 16)):
leastAvailable += 4
word = struct.unpack('I', f.read(4))[0]
else:
break
print str("["+thread+"]").ljust(40) + str(leastAvailable).ljust(30) + str("%.2f" % (100 * (1 - (leastAvailable/float(int("0x"+syms[thread][1], 16))))))
def collectTrace ( procNr ):
fileName = "sbe_" + `procNr` + "_tracMERG"
cmd1 = "pipe \"p9Proc" + `procNr` + ".sbe.mibo_space.x 0x" + syms['g_pk_trace_buf'][0] + " 0x2028\" \"sed 's/^p:0x........ //g' | sed 's/ ................$//g' | sed 's/ //g' | xxd -r -p> ppetrace.bin\""
cmd2 = "shell \"" + SBE_TOOLS_PATH + "/ppe2fsp ppetrace.bin sbetrace.bin \""
cmd3 = "shell \"" + "fsp-trace -s " + SBE_TOOLS_PATH + "/sbeStringFile_"+get_dd_level(procNr)+" sbetrace.bin >" + fileName + "\""
cmd4 = "shell \"" + "cat " + fileName + "\""
( rc, out ) = quiet_run_command( cmd1, output_modes.regular )
if ( rc ):
print "simics ERROR running %s: %d "%( cmd1, rc )
run_command ( cmd2 )
run_command ( cmd3 )
run_command ( cmd4 )
# MAGIC_INSTRUCTION hap handler
# arg contains the integer parameter n passed to MAGIC_INSTRUCTION(n)
# See src/include/arch/ppc.H for the definitions of the magic args.
# SBE magic args should range 8000..8190.
def sbe_magic_instruction_callback(user_arg, cpu, inst_num):
# Check if its for ppe processor
if(SIM_get_class_name(SIM_object_class(cpu)) != "ppe"):
return;
if inst_num == 8000: #MAGIC_SIMICS_CHECK
iface = SIM_get_interface(cpu, "int_register")
iface.write(iface.get_number("r3"), 1)
print "SBE::isSimicsRunning = true"
# Run the registration automatically whenever this script is loaded.
register_sbe_debug_framework_tools()
# Register the magic instruction hap handler (a callback).
# Currently registering a range does not work on simics for sbe
SIM_hap_add_callback( "Core_Magic_Instruction", sbe_magic_instruction_callback, None )
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