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miasm/arch/mips32/jit.py

Summary

Maintainability
D
2 days
Test Coverage

Function block2assignblks has a Cognitive Complexity of 13 (exceeds 5 allowed). Consider refactoring.
Open

    def block2assignblks(self, block):
        irblocks_list = super(mipsCGen, self).block2assignblks(block)
        for irblocks in irblocks_list:
            for blk_idx, irblock in enumerate(irblocks):
                has_breakflow = any(assignblock.instr.breakflow() for assignblock in irblock)
Severity: Minor
Found in miasm/arch/mips32/jit.py - About 1 hr to fix

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

  • Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
  • Code is considered more complex for each "break in the linear flow of the code"
  • Code is considered more complex when "flow breaking structures are nested"

Further reading

Similar blocks of code found in 2 locations. Consider refactoring.
Open

    def func_prepare_stdcall(self, ret_addr, *args):
        for index in range(min(len(args), 4)):
            setattr(self.cpu, 'A%d' % index, args[index])
        for index in range(4, len(args)):
            self.vm.set_mem(self.cpu.SP + 4 * (index - 4), pck32(args[index]))
Severity: Major
Found in miasm/arch/mips32/jit.py and 1 other location - About 7 hrs to fix
miasm/arch/aarch64/jit.py on lines 58..63

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 117.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Similar blocks of code found in 3 locations. Consider refactoring.
Open

    def func_ret_stdcall(self, ret_addr, ret_value1=None, ret_value2=None):
        self.pc = self.cpu.PC = ret_addr
        if ret_value1 is not None:
            self.cpu.V0 = ret_value1
        if ret_value2 is not None:
Severity: Major
Found in miasm/arch/mips32/jit.py and 2 other locations - About 3 hrs to fix
miasm/arch/arm/jit.py on lines 91..97
miasm/arch/ppc/jit.py on lines 41..47

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 65.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Similar blocks of code found in 2 locations. Consider refactoring.
Open

    def get_arg_n_stdcall(self, index):
        if index < 4:
            arg = getattr(self.cpu, 'A%d' % index)
        else:
            arg = self.get_stack_arg(index-4)
Severity: Major
Found in miasm/arch/mips32/jit.py and 1 other location - About 2 hrs to fix
miasm/arch/arm/jit.py on lines 106..111

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 56.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Similar blocks of code found in 3 locations. Consider refactoring.
Open

    @named_arguments
    def func_args_stdcall(self, n_args):
        args = [self.get_arg_n_stdcall(i) for i in range(n_args)]
        ret_ad = self.cpu.RA
        return ret_ad, args
Severity: Major
Found in miasm/arch/mips32/jit.py and 2 other locations - About 1 hr to fix
miasm/arch/arm/jit.py on lines 85..89
miasm/arch/ppc/jit.py on lines 35..39

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 47.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Similar blocks of code found in 3 locations. Consider refactoring.
Open

    def push_uint32_t(self, value):
        self.cpu.SP -= 4
        self.vm.set_mem(self.cpu.SP, pck32(value))
Severity: Major
Found in miasm/arch/mips32/jit.py and 2 other locations - About 1 hr to fix
miasm/arch/aarch64/jit.py on lines 21..23
miasm/arch/arm/jit.py on lines 71..73

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 38.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Similar blocks of code found in 2 locations. Consider refactoring.
Open

class jitter_mips32b(jitter_mips32l):

    def __init__(self, loc_db, *args, **kwargs):
        Jitter.__init__(self, Lifter_Mips32b(loc_db), *args, **kwargs)
        self.vm.set_big_endian()
Severity: Major
Found in miasm/arch/mips32/jit.py and 1 other location - About 1 hr to fix
miasm/arch/aarch64/jit.py on lines 75..79

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 38.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Similar blocks of code found in 3 locations. Consider refactoring.
Open

    def pop_uint32_t(self):
        value = self.vm.get_u32(self.cpu.SP)
        self.cpu.SP += 4
        return value
Severity: Major
Found in miasm/arch/mips32/jit.py and 2 other locations - About 55 mins to fix
miasm/arch/aarch64/jit.py on lines 25..28
miasm/arch/arm/jit.py on lines 75..78

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 37.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

Similar blocks of code found in 6 locations. Consider refactoring.
Open

    def get_stack_arg(self, index):
        return self.vm.get_u32(self.cpu.SP + 4 * index)
Severity: Major
Found in miasm/arch/mips32/jit.py and 5 other locations - About 40 mins to fix
miasm/arch/aarch64/jit.py on lines 30..31
miasm/arch/arm/jit.py on lines 80..81
miasm/arch/x86/jit.py on lines 63..64
miasm/arch/x86/jit.py on lines 104..105
miasm/arch/x86/jit.py on lines 221..222

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 34.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Further Reading

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