forked from Github_Repos/cvw
		
	
		
			
				
	
	
		
			262 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
			
		
		
	
	
			262 lines
		
	
	
		
			12 KiB
		
	
	
	
		
			Python
		
	
	
	
	
	
import os
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import re
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import shutil
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import subprocess
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import shlex
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import logging
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import random
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import string
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from string import Template
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import sys
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import riscof.utils as utils
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import riscof.constants as constants
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from riscof.pluginTemplate import pluginTemplate
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logger = logging.getLogger()
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class spike(pluginTemplate):
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    __model__ = "spike"
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    #TODO: please update the below to indicate family, version, etc of your DUT.
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    __version__ = "XXX"
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    def __init__(self, *args, **kwargs):
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        sclass = super().__init__(*args, **kwargs)
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        config = kwargs.get('config')
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        # If the config node for this DUT is missing or empty. Raise an error. At minimum we need
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        # the paths to the ispec and pspec files
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        if config is None:
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            print("Please enter input file paths in configuration.")
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            raise SystemExit(1)
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        # In case of an RTL based DUT, this would be point to the final binary executable of your
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        # test-bench produced by a simulator (like verilator, vcs, incisive, etc). In case of an iss or
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        # emulator, this variable could point to where the iss binary is located. If 'PATH variable
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        # is missing in the config.ini we can hardcode the alternate here.
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        self.dut_exe = os.path.join(config['PATH'] if 'PATH' in config else "","spike")
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        # Number of parallel jobs that can be spawned off by RISCOF
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        # for various actions performed in later functions, specifically to run the tests in
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        # parallel on the DUT executable. Can also be used in the build function if required.
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        self.num_jobs = str(config['jobs'] if 'jobs' in config else 1)
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        # Path to the directory where this python file is located. Collect it from the config.ini
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        self.pluginpath=os.path.abspath(config['pluginpath'])
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        # Collect the paths to the  riscv-config absed ISA and platform yaml files. One can choose
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        # to hardcode these here itself instead of picking it from the config.ini file.
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        self.isa_spec = os.path.abspath(config['ispec'])
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        self.platform_spec = os.path.abspath(config['pspec'])
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        #We capture if the user would like the run the tests on the target or
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        #not. If you are interested in just compiling the tests and not running
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        #them on the target, then following variable should be set to False
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        if 'target_run' in config and config['target_run']=='0':
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            self.target_run = False
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        else:
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            self.target_run = True
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        # Return the parameters set above back to RISCOF for further processing.
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        return sclass
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    def initialise(self, suite, work_dir, archtest_env):
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       # capture the working directory. Any artifacts that the DUT creates should be placed in this
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       # directory. Other artifacts from the framework and the Reference plugin will also be placed
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       # here itself.
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       self.work_dir = work_dir
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       # capture the architectural test-suite directory.
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       self.suite_dir = suite
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       # Note the march is not hardwired here, because it will change for each
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       # test. Similarly the output elf name and compile macros will be assigned later in the
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       # runTests function
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       self.compile_cmd = 'riscv64-unknown-elf-gcc -march={0} \
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         -static -mcmodel=medany -fvisibility=hidden -nostdlib -nostartfiles -g\
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         -T '+self.pluginpath+'/env/link.ld\
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         -I '+self.pluginpath+'/env/\
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         -I ' + archtest_env + ' {2} -o {3} {4}'
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       # add more utility snippets here
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    def build(self, isa_yaml, platform_yaml):
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      # load the isa yaml as a dictionary in python.
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      ispec = utils.load_yaml(isa_yaml)['hart0']
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      # capture the XLEN value by picking the max value in 'supported_xlen' field of isa yaml. This
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      # will be useful in setting integer value in the compiler string (if not already hardcoded);
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      self.xlen = ('64' if 64 in ispec['supported_xlen'] else '32')
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      # for spike start building the '--isa' argument. the self.isa is dutnmae specific and may not be
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      # useful for all DUTs
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      self.isa = 'rv' + self.xlen
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      if "I" in ispec["ISA"]:
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          self.isa += 'i'
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      if "M" in ispec["ISA"]:
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          self.isa += 'm'
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      if "F" in ispec["ISA"]:
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          self.isa += 'f'
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      if "D" in ispec["ISA"]:
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          self.isa += 'd'
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      if "C" in ispec["ISA"]:
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          self.isa += 'c'
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      #TODO: The following assumes you are using the riscv-gcc toolchain. If
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      #      not please change appropriately
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      self.compile_cmd = self.compile_cmd+' -mabi='+('lp64 ' if 64 in ispec['supported_xlen'] else ('ilp32e ' if "E" in ispec["ISA"] else 'ilp32 '))
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    def runTests(self, testList):
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      # Delete Makefile if it already exists.
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      if os.path.exists(self.work_dir+ "/Makefile." + self.name[:-1]):
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            os.remove(self.work_dir+ "/Makefile." + self.name[:-1])
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      # create an instance the makeUtil class that we will use to create targets.
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      make = utils.makeUtil(makefilePath=os.path.join(self.work_dir, "Makefile." + self.name[:-1]))
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      # set the make command that will be used. The num_jobs parameter was set in the __init__
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      # function earlier
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      make.makeCommand = 'make -j' + self.num_jobs
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      # we will iterate over each entry in the testList. Each entry node will be refered to by the
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      # variable testname.
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      for testname in testList:
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          # for each testname we get all its fields (as described by the testList format)
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          testentry = testList[testname]
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          # we capture the path to the assembly file of this test
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          test = testentry['test_path']
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          # capture the directory where the artifacts of this test will be dumped/created. RISCOF is
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          # going to look into this directory for the signature files
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          test_dir = testentry['work_dir']
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          # name of the elf file after compilation of the test
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          elf = 'my.elf'
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          # name of the signature file as per requirement of RISCOF. RISCOF expects the signature to
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          # be named as DUT-<dut-name>.signature. The below variable creates an absolute path of
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          # signature file.
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          sig_file = os.path.join(test_dir, self.name[:-1] + ".signature")
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          # for each test there are specific compile macros that need to be enabled. The macros in
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          # the testList node only contain the macros/values. For the gcc toolchain we need to
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          # prefix with "-D". The following does precisely that.
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          compile_macros= ' -D' + " -D".join(testentry['macros'])
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          # substitute all variables in the compile command that we created in the initialize
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          # function
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          cmd = self.compile_cmd.format(testentry['isa'].lower().replace('zicsr', ' ', 2), self.xlen, test, elf, compile_macros)
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	  # if the user wants to disable running the tests and only compile the tests, then
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	  # the "else" clause is executed below assigning the sim command to simple no action
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	  # echo statement.
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          if self.target_run:
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            # set up the simulation command. Template is for spike. Please change.
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            if ('NO_SAIL=True' in testentry['macros']):
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                # if the tests can't run on SAIL we copy the reference output to the src directory
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                reference_output = re.sub("/src/","/references/", re.sub(".S",".reference_output", test))
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                simcmd = 'cut -c-{0:g} {1} > {2}'.format(8, reference_output, sig_file) #use cut to remove comments when copying
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            else:
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                simcmd = self.dut_exe + ' --isa={0} +signature={1} +signature-granularity=4 {2}'.format(self.isa, sig_file, elf)
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          else:
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            simcmd = 'echo "NO RUN"'
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          # concatenate all commands that need to be executed within a make-target.
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          execute = '@cd {0}; {1}; {2};'.format(testentry['work_dir'], cmd, simcmd)
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          # create a target. The makeutil will create a target with the name "TARGET<num>" where num
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          # starts from 0 and increments automatically for each new target that is added
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          make.add_target(execute)
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      # if you would like to exit the framework once the makefile generation is complete uncomment the
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      # following line. Note this will prevent any signature checking or report generation.
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      #raise SystemExit
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      # once the make-targets are done and the makefile has been created, run all the targets in
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      # parallel using the make command set above.
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      #make.execute_all(self.work_dir)
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      # DH 7/26/22 increase timeout to 1800 seconds so sim will finish on slow machines
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      make.execute_all(self.work_dir, timeout = 1800) 
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      # if target runs are not required then we simply exit as this point after running all
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      # the makefile targets.
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      if not self.target_run:
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          raise SystemExit(0)
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#The following is an alternate template that can be used instead of the above.
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#The following template only uses shell commands to compile and run the tests.
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#    def runTests(self, testList):
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#
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#      # we will iterate over each entry in the testList. Each entry node will be referred to by the
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#      # variable testname.
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#      for testname in testList:
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#
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#          logger.debug('Running Test: {0} on DUT'.format(testname))
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#          # for each testname we get all its fields (as described by the testList format)
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#          testentry = testList[testname]
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#
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#          # we capture the path to the assembly file of this test
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#          test = testentry['test_path']
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#
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#          # capture the directory where the artifacts of this test will be dumped/created.
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#          test_dir = testentry['work_dir']
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#
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#          # name of the elf file after compilation of the test
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#          elf = 'my.elf'
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#
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#          # name of the signature file as per requirement of RISCOF. RISCOF expects the signature to
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#          # be named as DUT-<dut-name>.signature. The below variable creates an absolute path of
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#          # signature file.
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#          sig_file = os.path.join(test_dir, self.name[:-1] + ".signature")
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#
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#          # for each test there are specific compile macros that need to be enabled. The macros in
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#          # the testList node only contain the macros/values. For the gcc toolchain we need to
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#          # prefix with "-D". The following does precisely that.
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#          compile_macros= ' -D' + " -D".join(testentry['macros'])
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#
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#          # collect the march string required for the compiler
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#          marchstr = testentry['isa'].lower()
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#
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#          # substitute all variables in the compile command that we created in the initialize
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#          # function
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#          cmd = self.compile_cmd.format(marchstr, self.xlen, test, elf, compile_macros)
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#
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#          # just a simple logger statement that shows up on the terminal
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#          logger.debug('Compiling test: ' + test)
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#
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#          # the following command spawns a process to run the compile command. Note here, we are
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#          # changing the directory for this command to that pointed by test_dir. If you would like
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#          # the artifacts to be dumped else where change the test_dir variable to the path of your
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#          # choice.
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#          utils.shellCommand(cmd).run(cwd=test_dir)
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#
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#          # for debug purposes if you would like stop the DUT plugin after compilation, you can
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#          # comment out the lines below and raise a SystemExit
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#
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#          if self.target_run:
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#            # build the command for running the elf on the DUT. In this case we use spike and indicate
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#            # the isa arg that we parsed in the build stage, elf filename and signature filename.
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#            # Template is for spike. Please change for your DUT
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#            execute = self.dut_exe + ' --isa={0} +signature={1} +signature-granularity=4 {2}'.format(self.isa, sig_file, elf)
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#            logger.debug('Executing on Spike ' + execute)
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#
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#          # launch the execute command. Change the test_dir if required.
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#          utils.shellCommand(execute).run(cwd=test_dir)
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#
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#          # post-processing steps can be added here in the template below
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#          #postprocess = 'mv {0} temp.sig'.format(sig_file)'
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#          #utils.shellCommand(postprocess).run(cwd=test_dir)
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#
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#      # if target runs are not required then we simply exit as this point after running all
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#      # the makefile targets.
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#      if not self.target_run:
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#          raise SystemExit
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