Ruff format
This commit is contained in:
parent
51364faba5
commit
ab5f4e623b
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@ -1,19 +1,18 @@
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import subprocess
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NORMAL_COLOR = '\033[0m'
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REG_STATUS_TO_COLOR = {
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"insert": '\033[32m',
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"change": '\033[33m',
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"remove": '\033[31m',
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"none": '\033[0m',
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"jump": '\033[36m'
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'insert': '\033[32m',
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'change': '\033[33m',
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'remove': '\033[31m',
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'none': '\033[0m',
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'jump': '\033[36m',
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}
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class AsciiPainter:
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def __init__ (self, registers=None, max_stack_size=8, stack_draw_mode="up"):
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class AsciiPainter:
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def __init__(self, registers=None, max_stack_size=8, stack_draw_mode='up'):
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self.registers = registers if registers else REGISTERS
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self.states = []
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self.max_stack_size = max_stack_size
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@ -29,12 +28,14 @@ class AsciiPainter:
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for token in signature:
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state.append({'state': 'none', 'val': token})
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#
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for i in range(3-len(state)): state.append({'state':'none', 'val': ''})
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for i in range(len(state)-3): state.pop()
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for i in range(3 - len(state)):
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state.append({'state': 'none', 'val': ''})
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for i in range(len(state) - 3):
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state.pop()
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state.append({'state': 'none', 'val': ''})
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# Write registers to state
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for reg_name in self.registers:
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if reg_name =="":
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if reg_name == '':
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state.append({'state': 'none', 'val': ''})
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continue
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reg_state = emu.regState(reg_name)
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@ -42,27 +43,41 @@ class AsciiPainter:
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# Write stack to state
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stack_base_pointer = emu.getVal('%rbp')
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base_sp = emu.getVal('%rsp')
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assert(isinstance(emu.getVal('%rsp'), int))
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assert isinstance(emu.getVal('%rsp'), int)
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state.append({'state': 'none', 'val': ''})
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if emu.regState('m' + str(base_sp - 1)) == 'remove':
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state.append({'state': emu.regState('m'+str(base_sp-1)), 'val': emu.stack[base_sp-1]})
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state.append(
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{
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'state': emu.regState('m' + str(base_sp - 1)),
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'val': emu.stack[base_sp - 1],
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},
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)
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else:
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state.append({'state': 'none', 'val': ''})
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for index in range(0, self.max_stack_size):
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stack_i = base_sp + index
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if stack_i < emu.max_stack_size:
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state.append({ 'state': emu.regState("m"+str(stack_i)), 'val': emu.stack[stack_i] })
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state.append(
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{
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'state': emu.regState('m' + str(stack_i)),
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'val': emu.stack[stack_i],
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},
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)
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if stack_base_pointer == index:
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stack_base_pointer = emu.stack[base_pointer]
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# TODO: Draw stack frame seperators
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else:
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state.append({'state': 'none', 'val': ''})
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def getWidthOfColumns(self, number_states: int, number_states_per_block: int, number_state_vars: int) -> list[int]:
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def getWidthOfColumns(
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self, number_states: int, number_states_per_block: int, number_state_vars: int,
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) -> list[int]:
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widths = [0 for i in range(0, number_states_per_block)]
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for base_state in range(0, number_states, number_states_per_block):
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for var_i in range(0, number_state_vars):
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for state_i in range(0, min(number_states_per_block, number_states - base_state)):
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for state_i in range(
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0, min(number_states_per_block, number_states - base_state),
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):
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width = len(str(self.states[base_state + state_i][var_i]['val']))
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widths[state_i] = max(widths[state_i], width)
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return widths
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@ -83,15 +98,26 @@ class AsciiPainter:
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output: list[str] = []
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name_fmt = '{}{:' + str(self.getWidthOfNameColumn(number_state_vars)) + '} '
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column_fmt = ['{}{:>'+str(width)+'} ' for width in self.getWidthOfColumns(number_states, number_states_per_block, number_state_vars)]
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column_fmt = [
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'{}{:>' + str(width) + '} '
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for width in self.getWidthOfColumns(
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number_states, number_states_per_block, number_state_vars,
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)
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]
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for base_state in range(0, number_states, number_states_per_block):
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output.append(separator)
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for var_i in range(0, number_state_vars):
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output.append(name_fmt.format(NORMAL_COLOR, self.nameOfVar(var_i - 4)))
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for state_i in range(0, min(number_states_per_block, number_states - base_state)):
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for state_i in range(
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0, min(number_states_per_block, number_states - base_state),
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):
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var = self.states[base_state + state_i][var_i]
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output.append(column_fmt[state_i].format(REG_STATUS_TO_COLOR[var['state']], var['val'], NORMAL_COLOR))
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output.append(
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column_fmt[state_i].format(
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REG_STATUS_TO_COLOR[var['state']], var['val'], NORMAL_COLOR,
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),
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)
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output.append('\n')
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output.append(separator)
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@ -110,4 +136,3 @@ class AsciiPainter:
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def __str__(self):
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return 'AsciiPainter[]'
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@ -1,23 +1,39 @@
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import re
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from . import Junk
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from .opcodes import OPCODES
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REGISTERS=["%rax", "%rbx", "%rcx", "%rdx", "%rsp", "%rbp", "%rsi", "%rdi",
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"%r8", "%r9", "%r10", "%r11", "%r12", "%r13", "%r14", "%r15"]
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REGISTERS = [
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'%rax',
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'%rbx',
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'%rcx',
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'%rdx',
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'%rsp',
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'%rbp',
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'%rsi',
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'%rdi',
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'%r8',
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'%r9',
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'%r10',
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'%r11',
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'%r12',
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'%r13',
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'%r14',
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'%r15',
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]
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class CodeParseException(BaseException):
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def __init__(self, line_nr, string):
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self.line_nr = line_nr
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self.string = string
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class InternalExecutionException(BaseException):
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pass
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class Emulator:
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class Emulator:
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def __init__(self, source_text, max_stack_size=1000):
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self.source = source_text
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self.registers = {}
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@ -37,8 +53,7 @@ class Emulator:
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index = self.processSourceLine(line, index)
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def setStack(self, *stack_list, **kwargs):
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"""
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Sets various stack elements, starting from 0 and going up.
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"""Sets various stack elements, starting from 0 and going up.
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Automatically sets rsp. This can be disabled by passing set_rsp=False.
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"""
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i = len(self.stack)
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@ -50,27 +65,27 @@ class Emulator:
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def setRegs(self, **reg_dict):
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for reg_name, reg_val in reg_dict.items():
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assert(reg_name[0] != '%')
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self.registers["%"+reg_name] = reg_val
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assert reg_name[0] != '%'
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self.registers['%' + reg_name] = reg_val
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def getVal(self, val_text):
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if val_text[0] == "$":
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if val_text[0] == '$':
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return int(val_text[1:])
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elif val_text[0] == "%":
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elif val_text[0] == '%':
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return self.registers[val_text]
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else:
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raise ValueError('{} is not an usable value name'.format(val_text))
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raise ValueError(f'{val_text} is not an usable value name')
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def compareVal(self, valT1, valT2):
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val1 = self.getVal(valT2)
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val2 = self.getVal(valT1)
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if isinstance(val1, Junk.Junk) or isinstance(val2, Junk.Junk):
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self.status["i"] = (True,)
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self.status['i'] = (True,)
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return
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self.status["g"] = val1>val2
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self.status["l"] = val1<val2
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self.status["e"] = val1==val2
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self.status["i"] = False
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self.status['g'] = val1 > val2
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self.status['l'] = val1 < val2
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self.status['e'] = val1 == val2
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self.status['i'] = False
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def changedRegisters(self, *args):
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for reg, val in args:
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@ -84,7 +99,7 @@ class Emulator:
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self.labels[tokens[0][:-1]] = index
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tokens = tokens[1:]
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for i in range(len(tokens)):
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if tokens[i][0] == "#":
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if tokens[i][0] == '#':
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tokens = tokens[:i]
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break
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self.code.append(tokens)
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@ -94,25 +109,32 @@ class Emulator:
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if reg_name in self.changes:
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return self.changes[reg_name]
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else:
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return "none"
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return 'none'
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def getLineSignature(self, line_nr):
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return [ "\\"+token if token[0]=="$" or token[0]=="%" else token for token in self.code[line_nr] ]
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return [
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'\\' + token if token[0] == '$' or token[0] == '%' else token
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for token in self.code[line_nr]
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]
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def pushToStack(self, new_element):
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self.registers['%rsp'] -= 1
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self.stack[self.registers['%rsp']] = new_element
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self.changedRegisters(('%rsp',"change"), ("m"+str(self.registers['%rsp']),"insert"))
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self.changedRegisters(
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('%rsp', 'change'), ('m' + str(self.registers['%rsp']), 'insert'),
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)
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self.max_stack_size = max(self.registers['%rsp'], self.max_stack_size)
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def popFromStack(self):
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temp = self.stack[self.registers['%rsp']]
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self.changedRegisters(('%rsp',"change"),("m"+str(self.registers['%rsp']),"remove"))
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self.changedRegisters(
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('%rsp', 'change'), ('m' + str(self.registers['%rsp']), 'remove'),
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)
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self.registers['%rsp'] += 1
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return temp
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def jump (self, label, cond_op="or", **conditions):
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if len(conditions)>0 and self.status["i"]:
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def jump(self, label, cond_op='or', **conditions):
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if len(conditions) > 0 and self.status['i']:
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raise Junk.JunkComparisonException(*self.status['i'])
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and_, or_ = True, False
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for cnd_name, cnd_val in conditions.items():
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@ -120,7 +142,7 @@ class Emulator:
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or_ = True
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else:
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and_ = False
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if or_ if cond_op=="or" else and_:
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if or_ if cond_op == 'or' else and_:
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self.registers['%rip'] = self.labels[label]
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return True
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else:
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@ -132,7 +154,10 @@ class Emulator:
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if isinstance(old_rip, Junk.Junk) or old_rip >= len(self.code):
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return None
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if not isinstance(self.registers['%rip'], int):
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raise InternalExecutionException("Register %rip should be integer, but was "+str(self.registers['%rip']))
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raise InternalExecutionException(
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'Register %rip should be integer, but was '
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+ str(self.registers['%rip']),
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)
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instruct = self.code[self.registers['%rip']]
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opcode = instruct[0]
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self.changes = {}
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@ -142,7 +167,7 @@ class Emulator:
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if self.registers['%rip'] == old_rip:
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self.registers['%rip'] += 1
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else:
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self.changedRegisters(('%rip',"jump"))
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self.changedRegisters(('%rip', 'jump'))
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return old_rip
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@ -157,5 +182,8 @@ class Emulator:
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return output
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def getUsedRegisters(self):
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return [reg_name for reg_name, reg_val in self.registers.items() if not isinstance(reg_val, Junk.Junk)]
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return [
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reg_name
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for reg_name, reg_val in self.registers.items()
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if not isinstance(reg_val, Junk.Junk)
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]
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@ -1,10 +1,10 @@
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import dataclasses
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class JunkComparisonException(BaseException):
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class JunkComparisonException(BaseException):
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def __str__(self):
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return "Attempting to perform calculations involving junk values."
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return 'Attempting to perform calculations involving junk values.'
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@dataclasses.dataclass
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class Junk:
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@ -30,4 +30,3 @@ class Junk:
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def __rsub__(self, other):
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return self
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@ -1,21 +1,22 @@
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import re
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REG_STATUS_TO_COLOR = {
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"insert": "green",
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"change": "yellow",
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"remove": "red",
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"none": "black",
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"jump": "orange"
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'insert': 'green',
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'change': 'yellow',
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'remove': 'red',
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'none': 'black',
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'jump': 'orange',
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}
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DEFAULT_OPTIONS = """register_node/.style={rectangle, draw=black!30,
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fill=black!5, very thick, minimum size=0.5,
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minimum width=20mm}, text_node/.style={}"""
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class TikzPainter:
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def __init__ (self, registers=None, max_stack_size=8, stack_draw_mode="up", options=None):
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class TikzPainter:
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def __init__(
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self, registers=None, max_stack_size=8, stack_draw_mode='up', options=None,
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):
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self.registers = registers if registers else REGISTERS
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self.text = []
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self.pos_x = 0
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@ -24,7 +25,7 @@ class TikzPainter:
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self.options = options if options else DEFAULT_OPTIONS
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def addText(self, str, *args):
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text = re.sub(r"[^\\]%", "\\%", str.format(*args))
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text = re.sub(r'[^\\]%', '\\%', str.format(*args))
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self.text.append(text)
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def getRegColor(self, reg_state):
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@ -36,25 +37,42 @@ class TikzPainter:
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pos -= 1.5
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base_sp = min(emu.last_sp, emu.getVal('%rsp'))
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pos += 0.5 * max(0, emu.getVal('%rsp') - emu.last_sp)
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assert(isinstance(emu.getVal('%rsp'), int))
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for index in range(base_sp, 3+min(emu.max_stack_size, emu.getVal('%rsp')+self.max_stack_size)):
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reg_state = emu.regState("m"+str(index))
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reg_dect = "register_node, fill="+self.getRegColor(reg_state)+"!10"
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self.addText("\t\\node[{}]() at ({}, {}){{{}}};\n",
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reg_dect, x, pos, emu.stack[index])
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assert isinstance(emu.getVal('%rsp'), int)
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for index in range(
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base_sp,
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3 + min(emu.max_stack_size, emu.getVal('%rsp') + self.max_stack_size),
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):
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reg_state = emu.regState('m' + str(index))
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reg_dect = 'register_node, fill=' + self.getRegColor(reg_state) + '!10'
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self.addText(
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'\t\\node[{}]() at ({}, {}){{{}}};\n',
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reg_dect,
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x,
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pos,
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emu.stack[index],
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)
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if base_pointer == index:
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self.addText("\t\\draw ({0},{2}) -- ({1},{2});\n",x-1.1,x+1.1,pos-0.25)
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self.addText(
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'\t\\draw ({0},{2}) -- ({1},{2});\n', x - 1.1, x + 1.1, pos - 0.25,
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)
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base_pointer = emu.stack[base_pointer]
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pos -= 0.5
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return pos, x
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def drawStackDownward(self, pos, emu, x):
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pos -= 1
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for index in range(emu.getVal('%rsp')-8, max(emu.last_sp, emu.getVal('%rsp'))):
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reg_state = emu.regState("m"+str(index))
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reg_dect = "register_node, fill="+self.getRegColor(reg_state)+"!10"
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self.addText("\t\\node[{}]() at ({}, {}){{{}}};\n",
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reg_dect, x, pos, emu.stack[index])
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for index in range(
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emu.getVal('%rsp') - 8, max(emu.last_sp, emu.getVal('%rsp')),
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):
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reg_state = emu.regState('m' + str(index))
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reg_dect = 'register_node, fill=' + self.getRegColor(reg_state) + '!10'
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self.addText(
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'\t\\node[{}]() at ({}, {}){{{}}};\n',
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reg_dect,
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x,
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pos,
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emu.stack[index],
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)
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pos -= 0.5
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return pos, x
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@ -66,15 +84,20 @@ class TikzPainter:
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pos = 0.5
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for reg_name in self.registers:
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pos -= 0.5
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if reg_name =="":
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if reg_name == '':
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continue
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reg_state = emu.regState(reg_name)
|
||||
reg_dect = "register_node, fill="+self.getRegColor(reg_state)+"!10"
|
||||
self.addText("\t\\node[{}]() at ({}, {}){{{}}};\n",
|
||||
reg_dect, x, pos, emu.getVal(reg_name))
|
||||
reg_dect = 'register_node, fill=' + self.getRegColor(reg_state) + '!10'
|
||||
self.addText(
|
||||
'\t\\node[{}]() at ({}, {}){{{}}};\n',
|
||||
reg_dect,
|
||||
x,
|
||||
pos,
|
||||
emu.getVal(reg_name),
|
||||
)
|
||||
|
||||
# Draw stack
|
||||
if self.stack_draw_mode == "up":
|
||||
if self.stack_draw_mode == 'up':
|
||||
pos, x = self.drawStackUpward(pos, emu, x)
|
||||
else:
|
||||
pos, x = self.drawStackDownward(pos, emu, x)
|
||||
|
@ -85,45 +108,49 @@ class TikzPainter:
|
|||
pos = 2
|
||||
signature = emu.getLineSignature(line_nr)
|
||||
for token in signature:
|
||||
self.addText("\t\\node[text_node]() at ({}, {}){{{}}};\n",
|
||||
x-1.25, pos, token)
|
||||
self.addText(
|
||||
'\t\\node[text_node]() at ({}, {}){{{}}};\n', x - 1.25, pos, token,
|
||||
)
|
||||
pos -= 0.5
|
||||
|
||||
def drawNames(self, emu):
|
||||
x = 0
|
||||
pos = 0
|
||||
for reg_name in self.registers:
|
||||
self.addText("\t\\node[text_node]() at ({}, {}){{{}}};\n",
|
||||
x, pos, reg_name[1:])
|
||||
self.addText(
|
||||
'\t\\node[text_node]() at ({}, {}){{{}}};\n', x, pos, reg_name[1:],
|
||||
)
|
||||
pos -= 0.5
|
||||
|
||||
# Draw stack
|
||||
if self.stack_draw_mode == "up":
|
||||
if self.stack_draw_mode == 'up':
|
||||
self.drawStackNamesUpward(pos, emu, x)
|
||||
else:
|
||||
self.drawStackNamesDownward(pos, emu, x)
|
||||
|
||||
def drawStackNamesUpward(self, pos, emu, x):
|
||||
self.addText("\t\\node[text_node]() at ({}, {}){{TOS+1}};\n",
|
||||
x, pos-0.5)
|
||||
self.addText("\t\\node[text_node]() at ({}, {}){{TOS}};\n",
|
||||
x, pos-1.0)
|
||||
self.addText('\t\\node[text_node]() at ({}, {}){{TOS+1}};\n', x, pos - 0.5)
|
||||
self.addText('\t\\node[text_node]() at ({}, {}){{TOS}};\n', x, pos - 1.0)
|
||||
pos -= 1
|
||||
for index in range(1, self.max_stack_size):
|
||||
pos -= 0.5
|
||||
self.addText("\t\\node[text_node]() at ({}, {}){{TOS-{}}};\n",
|
||||
x, pos, index)
|
||||
self.addText(
|
||||
'\t\\node[text_node]() at ({}, {}){{TOS-{}}};\n', x, pos, index,
|
||||
)
|
||||
|
||||
def to_string(self, emu):
|
||||
PRE = """ \\documentclass{standalone}
|
||||
PRE = (
|
||||
""" \\documentclass{standalone}
|
||||
\\usepackage{tikz}
|
||||
\\begin{document}
|
||||
\\begin{tikzpicture}["""+self.options+"]"
|
||||
\\begin{tikzpicture}["""
|
||||
+ self.options
|
||||
+ ']'
|
||||
)
|
||||
POST = """\\end{tikzpicture}
|
||||
\\end{document}"""
|
||||
self.drawNames(emu)
|
||||
return PRE + "".join(self.text) + POST
|
||||
return PRE + ''.join(self.text) + POST
|
||||
|
||||
def __str__(self):
|
||||
return 'TikzPainter[]'
|
||||
|
||||
|
|
|
@ -1,31 +1,54 @@
|
|||
#!/usr/bin/python2
|
||||
|
||||
import argparse
|
||||
import re
|
||||
import sys
|
||||
|
||||
import re
|
||||
import argparse
|
||||
|
||||
from .Emulator import Emulator, REGISTERS
|
||||
from .TikzPainter import TikzPainter
|
||||
from .AsciiPainter import AsciiPainter
|
||||
from . import Junk
|
||||
from .AsciiPainter import AsciiPainter
|
||||
from .Emulator import REGISTERS, Emulator
|
||||
from .TikzPainter import TikzPainter
|
||||
|
||||
ARG_DESC = '''
|
||||
ARG_DESC = """
|
||||
A silly x86-64 emulator and stack visualizer.
|
||||
'''
|
||||
"""
|
||||
|
||||
PAINTER_ID_TO_CLASS = {'ascii': AsciiPainter, 'tikz': TikzPainter}
|
||||
|
||||
PAINTER_ID_TO_CLASS = {
|
||||
'ascii': AsciiPainter,
|
||||
'tikz': TikzPainter
|
||||
}
|
||||
|
||||
def parse_args():
|
||||
parser = argparse.ArgumentParser(description=ARG_DESC)
|
||||
parser.add_argument('-i', '--input-file', default='-', help = 'File to use as input', dest = 'input-file')
|
||||
parser.add_argument('-o', '--output-file', default='-', help = 'File to use as output', dest = 'output-file')
|
||||
parser.add_argument('-p', '--painter', default='ascii', help = 'Drawer to use', dest = 'painter-name', choices=PAINTER_ID_TO_CLASS.keys())
|
||||
parser.add_argument(
|
||||
'-i',
|
||||
'--input-file',
|
||||
default='-',
|
||||
help='File to use as input',
|
||||
dest='input-file',
|
||||
)
|
||||
parser.add_argument(
|
||||
'-o',
|
||||
'--output-file',
|
||||
default='-',
|
||||
help='File to use as output',
|
||||
dest='output-file',
|
||||
)
|
||||
parser.add_argument(
|
||||
'-p',
|
||||
'--painter',
|
||||
default='ascii',
|
||||
help='Drawer to use',
|
||||
dest='painter-name',
|
||||
choices=PAINTER_ID_TO_CLASS.keys(),
|
||||
)
|
||||
for register in REGISTERS:
|
||||
parser.add_argument('--'+register[1:], nargs = 1, type = int, default = None, dest = register, help = 'the initial value of the register')
|
||||
parser.add_argument(
|
||||
'--' + register[1:],
|
||||
nargs=1,
|
||||
type=int,
|
||||
default=None,
|
||||
dest=register,
|
||||
help='the initial value of the register',
|
||||
)
|
||||
args = vars(parser.parse_args())
|
||||
|
||||
# Determine args #
|
||||
|
@ -42,7 +65,7 @@ def parse_args ():
|
|||
registers_init[register[1:]] = args[register][0]
|
||||
|
||||
#
|
||||
program = ""
|
||||
program = ''
|
||||
if args['input-file'] == '-':
|
||||
program = sys.stdin.read()
|
||||
else:
|
||||
|
@ -62,20 +85,20 @@ def parse_args ():
|
|||
## Return
|
||||
return (program, registers_init, output_file, painter_class)
|
||||
|
||||
def main ():
|
||||
|
||||
def main():
|
||||
(program, registers_init, output_file, painter_class) = parse_args()
|
||||
|
||||
# Determine registers to display
|
||||
registers_to_draw = ["%rip","%rbp","%rsp", ""]
|
||||
for match in re.findall(r"%r[a-z0-9]{1,2}", program):
|
||||
registers_to_draw = ['%rip', '%rbp', '%rsp', '']
|
||||
for match in re.findall(r'%r[a-z0-9]{1,2}', program):
|
||||
if match not in registers_to_draw:
|
||||
registers_to_draw.append(match)
|
||||
|
||||
# Setup emulator and drawer
|
||||
emu = Emulator(program)
|
||||
emu.setRegs(**registers_init)
|
||||
emu.setStack(Junk.Junk("junk..."), Junk.Junk("call eip"))
|
||||
emu.setStack(Junk.Junk('junk...'), Junk.Junk('call eip'))
|
||||
|
||||
painter = painter_class(registers_to_draw)
|
||||
|
||||
|
@ -88,6 +111,6 @@ def main ():
|
|||
output_file.write(painter.to_string(emu))
|
||||
output_file.close()
|
||||
|
||||
if __name__ == "__main__":
|
||||
main()
|
||||
|
||||
if __name__ == '__main__':
|
||||
main()
|
||||
|
|
|
@ -1,88 +1,109 @@
|
|||
|
||||
OPCODES = {}
|
||||
|
||||
|
||||
def add_opcode(*opcode_names):
|
||||
def wrapped(func):
|
||||
for name in opcode_names:
|
||||
OPCODES[name] = func
|
||||
|
||||
return wrapped
|
||||
|
||||
|
||||
################################################################################
|
||||
|
||||
# Stack
|
||||
|
||||
@add_opcode("push","pushq")
|
||||
|
||||
@add_opcode('push', 'pushq')
|
||||
def push(emu, value):
|
||||
emu.pushToStack(emu.getVal(value))
|
||||
|
||||
@add_opcode("pop","popq")
|
||||
|
||||
@add_opcode('pop', 'popq')
|
||||
def pop(emu, target_reg):
|
||||
emu.registers[target_reg] = emu.popFromStack()
|
||||
emu.changedRegisters((target_reg,"change"))
|
||||
emu.changedRegisters((target_reg, 'change'))
|
||||
|
||||
|
||||
# Arithmetic
|
||||
|
||||
@add_opcode("mov","movq")
|
||||
|
||||
@add_opcode('mov', 'movq')
|
||||
def mov(emu, from_reg, target_reg):
|
||||
emu.registers[target_reg] = emu.getVal(from_reg)
|
||||
emu.changedRegisters((target_reg,"change"))
|
||||
emu.changedRegisters((target_reg, 'change'))
|
||||
|
||||
@add_opcode("add","addq")
|
||||
|
||||
@add_opcode('add', 'addq')
|
||||
def add(emu, add_val, target_reg):
|
||||
emu.registers[target_reg] += emu.getVal(add_val)
|
||||
emu.changedRegisters((target_reg,"change"))
|
||||
emu.changedRegisters((target_reg, 'change'))
|
||||
|
||||
@add_opcode("sub","subq")
|
||||
|
||||
@add_opcode('sub', 'subq')
|
||||
def sub(emu, sub_val, target_reg):
|
||||
emu.registers[target_reg] -= emu.getVal(sub_val)
|
||||
emu.changedRegisters((target_reg,"change"))
|
||||
emu.changedRegisters((target_reg, 'change'))
|
||||
|
||||
|
||||
# Comparison and conditional jumping
|
||||
|
||||
@add_opcode("cmp","cmpq")
|
||||
|
||||
@add_opcode('cmp', 'cmpq')
|
||||
def comp(emu, val1, val2):
|
||||
emu.compareVal(val1, val2)
|
||||
|
||||
@add_opcode("jg")
|
||||
|
||||
@add_opcode('jg')
|
||||
def jg(emu, label):
|
||||
emu.jump(label, g=True)
|
||||
|
||||
@add_opcode("jl")
|
||||
|
||||
@add_opcode('jl')
|
||||
def jl(emu, label):
|
||||
emu.jump(label, l=True)
|
||||
|
||||
@add_opcode("je")
|
||||
|
||||
@add_opcode('je')
|
||||
def je(emu, label):
|
||||
emu.jump(label, e=True)
|
||||
|
||||
@add_opcode("jge")
|
||||
|
||||
@add_opcode('jge')
|
||||
def jge(emu, label):
|
||||
emu.jump(label, "or", g=True, e=True)
|
||||
emu.jump(label, 'or', g=True, e=True)
|
||||
|
||||
@add_opcode("jle")
|
||||
|
||||
@add_opcode('jle')
|
||||
def jle(emu, label):
|
||||
emu.jump(label, "or", l=True, e=True)
|
||||
emu.jump(label, 'or', l=True, e=True)
|
||||
|
||||
@add_opcode("jne")
|
||||
|
||||
@add_opcode('jne')
|
||||
def jne(emu, label):
|
||||
emu.jump(label, e=False)
|
||||
|
||||
|
||||
# Unconditional Jumping
|
||||
|
||||
@add_opcode("jmp")
|
||||
|
||||
@add_opcode('jmp')
|
||||
def jmp(emu, label):
|
||||
emu.registers['%rip'] = emu.labels[label]
|
||||
|
||||
@add_opcode("call")
|
||||
|
||||
@add_opcode('call')
|
||||
def call(emu, label):
|
||||
emu.pushToStack(emu.registers['%rip'] + 1)
|
||||
emu.registers['%rip'] = emu.labels[label]
|
||||
|
||||
@add_opcode("leave")
|
||||
def leave(emu):
|
||||
emu.registers["%rsp"] = emu.registers["%rbp"]
|
||||
emu.registers["%rbp"] = emu.popFromStack()
|
||||
|
||||
@add_opcode("ret")
|
||||
@add_opcode('leave')
|
||||
def leave(emu):
|
||||
emu.registers['%rsp'] = emu.registers['%rbp']
|
||||
emu.registers['%rbp'] = emu.popFromStack()
|
||||
|
||||
|
||||
@add_opcode('ret')
|
||||
def ret(emu):
|
||||
emu.registers['%rip'] = emu.popFromStack()
|
||||
|
|
5
setup.py
5
setup.py
|
@ -41,7 +41,10 @@ this stuff is worth it, you can buy me a beer in return.
|
|||
Jon Michael Aanes
|
||||
```"""
|
||||
|
||||
PACKAGE_DESCRIPTION_SHORT='Simple interpreter and stack tracer for the AMD x86-64 ABI.'
|
||||
PACKAGE_DESCRIPTION_SHORT = (
|
||||
'Simple interpreter and stack tracer for the AMD x86-64 ABI.'
|
||||
)
|
||||
|
||||
|
||||
def parse_version_file(text: str) -> str:
|
||||
match = re.match(r'^__version__\s*=\s*(["\'])([\d\.]+)\1$', text)
|
||||
|
|
158
tests/tests.py
158
tests/tests.py
|
@ -1,6 +1,7 @@
|
|||
import os
|
||||
import sys
|
||||
import traceback
|
||||
|
||||
sys.path.insert(1, os.path.join(sys.path[0], '..'))
|
||||
|
||||
import infernal
|
||||
|
@ -9,14 +10,17 @@ import infernal
|
|||
|
||||
tests = []
|
||||
|
||||
|
||||
def add_test(name, result, register, code):
|
||||
tests.append((name, result, register, code))
|
||||
|
||||
|
||||
def printf(str, *args):
|
||||
print(str.format(*args))
|
||||
|
||||
|
||||
def execute_tests():
|
||||
print("Executing tests!")
|
||||
print('Executing tests!')
|
||||
total_tests = 0
|
||||
failed_tests = 0
|
||||
error_tests = 0
|
||||
|
@ -25,94 +29,152 @@ def execute_tests():
|
|||
line_nr = None
|
||||
try:
|
||||
emu = infernal.Emulator(code)
|
||||
emu.setStack("junk...", "calling eip")
|
||||
emu.setStack('junk...', 'calling eip')
|
||||
emu.setRegs(rip=0, rbp='old bp')
|
||||
except infernal.CodeParseException as e:
|
||||
error_tests += 1
|
||||
printf("Encountered error when parsing {}, at line {}: {}",
|
||||
name, e.line_nr, e.str)
|
||||
printf(
|
||||
'Encountered error when parsing {}, at line {}: {}',
|
||||
name,
|
||||
e.line_nr,
|
||||
e.str,
|
||||
)
|
||||
try:
|
||||
for line_nr in emu:
|
||||
pass
|
||||
if isinstance(result, BaseException):
|
||||
printf("Error should have happened in {}, but did not", name)
|
||||
printf('Error should have happened in {}, but did not', name)
|
||||
failed_tests += 1
|
||||
output = emu.getVal(register)
|
||||
if output != result:
|
||||
failed_tests += 1
|
||||
printf("Failed in {}. {} was {}, should be {}",
|
||||
name, register, output, result)
|
||||
printf(
|
||||
'Failed in {}. {} was {}, should be {}',
|
||||
name,
|
||||
register,
|
||||
output,
|
||||
result,
|
||||
)
|
||||
except BaseException as e:
|
||||
print(e)
|
||||
if not isinstance(result, BaseException) or not isinstance(e, result):
|
||||
error_tests += 1
|
||||
printf("Encountered error in {}, at operation {}: {}",
|
||||
name, emu.getVal('%rip'), e)
|
||||
printf(
|
||||
'Encountered error in {}, at operation {}: {}',
|
||||
name,
|
||||
emu.getVal('%rip'),
|
||||
e,
|
||||
)
|
||||
traceback.print_exc()
|
||||
printf("Tests done! {}/{}.",
|
||||
total_tests - failed_tests - error_tests, total_tests)
|
||||
printf("{} failed, and {} encountered a python error",
|
||||
failed_tests, error_tests)
|
||||
printf('Tests done! {}/{}.', total_tests - failed_tests - error_tests, total_tests)
|
||||
printf('{} failed, and {} encountered a python error', failed_tests, error_tests)
|
||||
|
||||
|
||||
################################################################################
|
||||
# Arithmetic Operations
|
||||
|
||||
add_test("constant $255", 255, "%rsi", """
|
||||
add_test(
|
||||
'constant $255',
|
||||
255,
|
||||
'%rsi',
|
||||
"""
|
||||
movq $255, %rsi
|
||||
""")
|
||||
""",
|
||||
)
|
||||
|
||||
add_test("static addition 10+$20", 30, "%rsi", """
|
||||
add_test(
|
||||
'static addition 10+$20',
|
||||
30,
|
||||
'%rsi',
|
||||
"""
|
||||
movq $10, %rsi
|
||||
addq $20, %rsi
|
||||
""")
|
||||
""",
|
||||
)
|
||||
|
||||
add_test("register addition 10+20", 30, "%rsi", """
|
||||
add_test(
|
||||
'register addition 10+20',
|
||||
30,
|
||||
'%rsi',
|
||||
"""
|
||||
movq $10, %rsi
|
||||
movq $20, %rax
|
||||
addq %rax, %rsi
|
||||
""")
|
||||
""",
|
||||
)
|
||||
|
||||
add_test("register subtraction 10-20", -10, "%rsi", """
|
||||
add_test(
|
||||
'register subtraction 10-20',
|
||||
-10,
|
||||
'%rsi',
|
||||
"""
|
||||
movq $10, %rsi
|
||||
movq $20, %rax
|
||||
subq %rax, %rsi
|
||||
""")
|
||||
""",
|
||||
)
|
||||
|
||||
################################################################################
|
||||
# Branching
|
||||
|
||||
branch_tests = [
|
||||
("jg",10,">",5,0), ("jg",5,">",5,1), ("jg",5,">",10,1),
|
||||
("jl",10,"<",5,1), ("jl",5,"<",5,1), ("jl",5,"<",10,0),
|
||||
("je",10,"==",5,1),("je",5,"==",5,0),("je",5,"==",10,1),
|
||||
("jge",10,">=",5,0),("jge",5,">=",5,0),("jge",5,">=",10,1),
|
||||
("jle",10,"<=",5,1),("jle",5,"<=",5,0),("jle",5,"<=",10,0),
|
||||
("jne",10,"!=",5,0),("jne",5,"!=",5,1),("jne",5,"!=",10,0),
|
||||
('jg', 10, '>', 5, 0),
|
||||
('jg', 5, '>', 5, 1),
|
||||
('jg', 5, '>', 10, 1),
|
||||
('jl', 10, '<', 5, 1),
|
||||
('jl', 5, '<', 5, 1),
|
||||
('jl', 5, '<', 10, 0),
|
||||
('je', 10, '==', 5, 1),
|
||||
('je', 5, '==', 5, 0),
|
||||
('je', 5, '==', 10, 1),
|
||||
('jge', 10, '>=', 5, 0),
|
||||
('jge', 5, '>=', 5, 0),
|
||||
('jge', 5, '>=', 10, 1),
|
||||
('jle', 10, '<=', 5, 1),
|
||||
('jle', 5, '<=', 5, 0),
|
||||
('jle', 5, '<=', 10, 0),
|
||||
('jne', 10, '!=', 5, 0),
|
||||
('jne', 5, '!=', 5, 1),
|
||||
('jne', 5, '!=', 10, 0),
|
||||
]
|
||||
|
||||
for jump_instruct, a, comp, b, result in branch_tests:
|
||||
add_test("branch {a} {comp} {b}={result}".format(a=a,comp=comp,b=b,result=not result), result, "%rsi", """
|
||||
add_test(
|
||||
f'branch {a} {comp} {b}={not result}',
|
||||
result,
|
||||
'%rsi',
|
||||
f"""
|
||||
start: cmpq ${b}, ${a}
|
||||
{jump_instruct} true
|
||||
movq $1, %rsi
|
||||
jmp return
|
||||
true: movq $0, %rsi
|
||||
return: ret
|
||||
""".format(a=a,b=b,jump_instruct=jump_instruct))
|
||||
""",
|
||||
)
|
||||
|
||||
################################################################################
|
||||
# Junk Comparisons
|
||||
|
||||
add_test("invalid comparison 1", infernal.JunkComparisonException, "None", """
|
||||
add_test(
|
||||
'invalid comparison 1',
|
||||
infernal.JunkComparisonException,
|
||||
'None',
|
||||
"""
|
||||
start: movq $100, %rsp # Set stack pointer to a random position.
|
||||
popq %rsi # Move a Junk value into %rsi
|
||||
cmpq $10, %rsi # Do a Junk comparison, which triggers the `i` comp
|
||||
# virtual register.
|
||||
jg start # Attempt to do a jump to the start, if (Junk-10)>0,
|
||||
# which makes no sense, and thus throws an error.
|
||||
""")
|
||||
""",
|
||||
)
|
||||
|
||||
add_test("invalid addition 1", infernal.JunkComparisonException, "None", """
|
||||
add_test(
|
||||
'invalid addition 1',
|
||||
infernal.JunkComparisonException,
|
||||
'None',
|
||||
"""
|
||||
start: movq $100, %rsp # Set stack pointer to a random position.
|
||||
popq %rsi # Move a Junk value into %rsi
|
||||
addq %rsi, %rsp # Adds Junk to 101, which produces Junk.
|
||||
|
@ -120,9 +182,14 @@ start: movq $100, %rsp # Set stack pointer to a random position.
|
|||
# virtual register.
|
||||
jg start # Attempt to do a jump to the start, if (Junk-10)>0,
|
||||
# which makes no sense, and thus throws an error.
|
||||
""")
|
||||
""",
|
||||
)
|
||||
|
||||
add_test("invalid addition 2", infernal.JunkComparisonException, "None", """
|
||||
add_test(
|
||||
'invalid addition 2',
|
||||
infernal.JunkComparisonException,
|
||||
'None',
|
||||
"""
|
||||
start: movq $100, %rsp # Set stack pointer to a random position.
|
||||
popq %rsi # Move a Junk value into %rsi
|
||||
addq %rsp, %rsi # Adds 101 to Junk, which produces Junk.
|
||||
|
@ -130,9 +197,14 @@ start: movq $100, %rsp # Set stack pointer to a random position.
|
|||
# virtual register.
|
||||
jg start # Attempt to do a jump to the start, if (Junk-10)>0,
|
||||
# which makes no sense, and thus throws an error.
|
||||
""")
|
||||
""",
|
||||
)
|
||||
|
||||
add_test("invalid subtraction 1", infernal.JunkComparisonException, "None", """
|
||||
add_test(
|
||||
'invalid subtraction 1',
|
||||
infernal.JunkComparisonException,
|
||||
'None',
|
||||
"""
|
||||
start: movq $100, %rsp # Set stack pointer to a random position.
|
||||
popq %rsi # Move a Junk value into %rsi
|
||||
subq %rsi, %rsp # Adds Junk to 101, which produces Junk.
|
||||
|
@ -140,9 +212,14 @@ start: movq $100, %rsp # Set stack pointer to a random position.
|
|||
# virtual register.
|
||||
jg start # Attempt to do a jump to the start, if (Junk-10)>0,
|
||||
# which makes no sense, and thus throws an error.
|
||||
""")
|
||||
""",
|
||||
)
|
||||
|
||||
add_test("invalid subtraction 2", infernal.JunkComparisonException, "None", """
|
||||
add_test(
|
||||
'invalid subtraction 2',
|
||||
infernal.JunkComparisonException,
|
||||
'None',
|
||||
"""
|
||||
start: movq $100, %rsp # Set stack pointer to a random position.
|
||||
popq %rsi # Move a Junk value into %rsi
|
||||
subq %rsp, %rsi # Adds 101 to Junk, which produces Junk.
|
||||
|
@ -150,9 +227,10 @@ start: movq $100, %rsp # Set stack pointer to a random position.
|
|||
# virtual register.
|
||||
jg start # Attempt to do a jump to the start, if (Junk-10)>0,
|
||||
# which makes no sense, and thus throws an error.
|
||||
""")
|
||||
""",
|
||||
)
|
||||
|
||||
################################################################################
|
||||
|
||||
if __name__ == "__main__":
|
||||
if __name__ == '__main__':
|
||||
execute_tests()
|
||||
|
|
Loading…
Reference in New Issue
Block a user