mirror of
https://github.com/trailofbits/manticore.git
synced 2026-10-12 02:23:44 +00:00
Eric Hennenfent
1208759e55
The WASM branch is ready to be included in the rest of Manticore. It doesn't include several advanced features, including a symbolic memory model, symbolic floating point support, or a standard library implementation (WASI/emscripten), but it does have full symbolic semantics for all of the integer instructions.
### Commit log:
* Empty WASM Module
Will run on a .wasm file and do nothing forever
* Read and parse sections
/shrug
* Can partially allocate modules
Just pushing for the weekend
* Blacken
* Can allocate with exports now
* Static initialization
Doesn't evaluate any of the starting expressions, but that's okay
* Make type hints a little more pycharm-friendly
* First part of invocation
* Blacken...
* Barebones execution poc
Can execute the following snippet:
```
main(){
return 42;
}
```
* blacken
* Add some loads and stores
* Add global operations
* Move float methods further down
* Support internal function calls
```
18:20:42 (mc) ehennenfent@nessie:~/wasm ➜ cat loop_check.c
#include <stdio.h>
#include <stdbool.h>
bool check(int arg){
if (((arg << 2) ^ 16) == 36) {
return true;
}
else{
return false;
}
}
int main(){
printf("Hello world!\n");
int g = getchar();
printf("Got: %d\n", g);
int y = 0;
for (int i = 0; i < 20; i++){
y++;
if (y > 18){
return check(g) ? 0 : -1;
}
}
return -1;
}
18:20:54 (mc) ehennenfent@nessie:~/wasm ➜ manticore loop_check.wasm
65: i32.const (16)
11: end
65: i32.const (32)
11: end
Initialization Complete
65: i32.const (0)
65: i32.const (0)
40: i32.load (Offset 4)
65: i32.const (16)
107: i32.sub
34: tee_local (Local 1)
54: i32.store (Offset 4)
65: i32.const (32)
16: call (Func Idx 2)
Called stub function with args: (32,)
HostFunc returned [13]
26: drop
32: get_local (Local 1)
16: call (Func Idx 0)
Called stub function with args: ()
HostFunc returned [13]
34: tee_local (Local 0)
54: i32.store (Offset 0)
65: i32.const (16)
32: get_local (Local 1)
16: call (Func Idx 1)
Called stub function with args: (16, 16)
HostFunc returned [13]
26: drop
65: i32.const (0)
32: get_local (Local 1)
65: i32.const (16)
106: i32.add
54: i32.store (Offset 4)
65: i32.const (-1)
65: i32.const (0)
32: get_local (Local 0)
65: i32.const (1073741823)
113: i32.and
65: i32.const (13)
71: i32.ne
27: select
11: end
[0]
2019-07-25 18:20:58,138: [13842] m.c.manticore:INFO: Generated testcase No. 0 - test
2019-07-25 18:20:58,143: [13842] m.c.manticore:INFO: Results in /home/ehennenfent/wasm/mcore_1evptpip
```
* Improve pickle-friendliness
* Convert wasm module instructions into internal type s
* Fix class naming conflict
Thanks Pickle
* Support bitvecs as an integer type
* Refactor execution to handle single instructions at a time
* Add Atomic Stacks
It's a very inefficient implementation, but we'll make it better
* Handle Concretize Exceptions
Needs a lot of fine tuning but it's a start
* Propagate symbols all the way to return
* Add test generation infrastructure
Still very basic but it's a start
* Attempt to make Travis happy
* Fix missing generation step
* Ignore stack exhaustsion and invalid modules
* Add basic shift instructions
* Add lots of arithmetic instructions
* Fix global initialization
* Add optimization for fixed size left shift
* Make Travis tests less verbose
* Blacken
* Properly handle modulo in shifting
* Add several control flow instructions
* Blacken
* Partially Fix return instruction
* Fix missing return value from look_forward
* Update look_forward to handle nested blocks
* Fix type sigs and executor copy/paste errors, deduplicate test names
* Fix an instruction exit issue
* Fix local ordering
* Blacken
* test_address now passes for wasm
Fixed issue with json2mc.py issue with testname uniqueness
Started some work on floating point
* i hate git
* i hate git
* Adding linenumber to testcase function name
minor float progress
* f32_cmp passed for wasm
* f64_cmp passes for wasm
* f32_bitwise passes except for the problem with assertEqual not working with nan
* f64_bitwise passes except for the problem with assertEqual not working with nan
* Fixed the tests to handle [nan] comparisons
* better handling of nans and infinites
* added integer backing value for f64
* Blacken
* Blacken
* f64.nearest
* Fix argument ordering and implement N-bit memory stores
* Use subtests
* Switch print to logger
* Modify control flow instructions to match spec
"Continuation" != the thing that goes inside the Label
* Teporarily disable call instructions to prevent infinite loop
Still need to figure out control flow for nested function calls
* Blacken
* Fixed infinite loop in _call via block depth tracking
The behavior of `end` needs to depend on how many labels and activations are on the stack. Every time we push or pop a label, we increment or decrement the counter for the current call frame.
* Blacken
* Initial `br` implementation
Probably still bugged
* Support if blocks without an else instruction
* Add call_indirect
* Add grow_memory
* i32_wrap_i64
* Add several arithmetic operators
* Copy i32.ctz impl from x86 TZCNT
* Fix off-by-one in br
I think this is the correct fix (it makes all the _br tests pass) but I'm leaving the TODO there just in case.
* Blacken...
* Fix lingering issue with if block splitting
* Fix bad args to sextend in i64_extend_s_i32
* Fix indirect call null check and Float binop return types
* Improve br_table indexing
See comment
* Remove vestigial argument popping in invoke
* Fix looking forward in _return and _block
* Blacken
* Generate trap and action tests
* Fix extraneous call to exec_for_test
* Fix missing traps in load instructions
* Fix c1=0 case in ctz/clz
Hopefully this also fixes the fact that the original CTZ implementations seems to have been intended for little-endian architectures
* Handle traps in-stride during test execution
* Treat zero division as trap
* Use ctypes to convert integers
* Blacken
* Apparently I was wrong about the CTZ endianness thing
* Better range checks for offsets
This really hammers home why checking whether ea + size is _greater than_ len(mem.data) is strange if mem.data is 0-indexed, but idk, that's what the spec says.
* Make stub functions return the correct number of results
* ctypes can't handle floats
* Add option to run the start function
* Correctly handle functions with unacceptable names
* Blacken
* Treat NotImplemented as a Skip
Also counts individual subtests directly instead of screwing around with trying to grep for them in the log.
* Fix unhandled negative indices
* Fixed some integer instruction bugs
i64/32:
div_s/u
shr_s/u
shl
clz
* Fix global and memory imports
* CC
* Make default loglevel debug
* Rework conversion from int
* Make float_store work
* _actually_ fix float_store
* Restore old float creation method
* Blacken
* Add range checks to float load/store
* Force cast to unsigned in _u instructions
* Fix yet another I32 -> I64 copy paste error
How many times do we have to teach you this lesson, ~old~ young man?
* Skip problematic float tests for now
* Handle floating point inaccuracies when dividing large ints
* Skip conversion and endianness tests
* Rotl, rotl, popcnt
* Blacken
* Add some conversion stubs
* Maybe fix conversions
* Improve reinterpret and float demotion
* Re-enable endianness tests
* Include WASM logging in verbosity controls
* Propagate constraints to executor
* Blacken
* Add prototype symbolic tests
* Add api for invocation to Manticore object
* Temporarily disable native/evm tests
There's no reason to tie up Travis for 40 minutes every time I push a commit.
* Fix wasmworld import
* Concretize br_if
* Pass arg generator to invoke
* Download updated WABT
It's fixed now!
* Generate Symbolic tests (partial)
* Follow m.run format
* Blacken
* Reinitialize Manticore every 50 tests
This should cut down on the performance issues we've been seeing
* Revert "Temporarily disable native/evm tests"
This reverts commit 7abd6c1333.
* I32 and I64 pass Symbolic
* Create new MC on reinit
* Blacken
* Fix return handling in test generation
* Concretize operand in `if_`
* Concretize memory addresses before access
In the long run, we should have a symbolic memory model
* Better memory access concretization (and br_table)
* Concretize float converions and indirect call operands
* Run start method
* Handle size errors in wrap+i64 and select
* Add timeout (and skip extra-problematic tests)
* Blacken
* Aggressively concretize floats
* Recast ints that should have been floats
* Better trap handling
* Unstash float concretization
* Fix log-lived 'trap' attr
* Blacken
* Concretize F32 when promoting to F64
_shouldn't_ strictly be necesssary, but the lazy conversion means that one of the tests fails. Until we get symbolic floating point, this will have to do.
* Docstrings for platforms/wasm.py
* Docstrings for ManticoreWASM
* Add docs for the module structure
* Add WASM to RTD
* missing docstring for Module itself
* Fix sphinx errors
* Bump RTD python version
I'm sorry and I swear I'll fix it later
* Reformat docstrings for sphinx
* Pacify RTD by adding newlines before params
* Missed a few
* Document the types
* Document executor
* A few more type docstrings
* Partial runtime_structure docs
* Finish documenting runtime structure
* Fix trailing whitespace
* Add collatz conjecture example
* Include undocumented members in RTD
* Add a bunch of events
* Appropriately connect event publishers
* Generate useful testcases
* Blacken
* Attempt at 3.6 backporting
* Optimize AtomicStack
* Sort solve_n output in test_solve_n
Very unclear why this is happening, but it's breaking a travis build
https://travis-ci.com/trailofbits/manticore/jobs/246451527
* Roll back to trusty?
Unsure if this is what's causing the EVM issues
* Create custom trap types
* Lazily evaluate overflows
May need to revert this if it slows down the Travis tests. It's 0.7% slower in the example I'm looking at, but that may not carry over.
* Blacken
* Address Dominik's feedback, remove stale TODOs
* Expand & Test Examples
* Fix relative path
* Fix relative path?
* capitalize Path
* Fix relative path for real
* Blacken...
* Test finalize
* Add supplemental tests for coverage
* Use dedicated helper for store access
* Handle quoted strings in imported module names
* Allow WASMWorld to hold multiple modules
Necessary for getting imports/exports to work, but still needs some changes before it passes the tests.
* Actually use export maps
* Fix most of the control flow issues with import tests
* Use available cores for test generation
* Escape module name
* Don't reinit modules that have already been initialized
* Use addresses for imports instead of copying
* Fix removed timeout argument
* Interleave registration and aliases
* Fix broken "None" check for address
* Blacken
* Make manual exports work with address syntax
* Import all registered modules
Only necessary for elem, but it's tricky to make changes just for one test, so *shrug emoji*
* Remove stringified annotations
Turns out those only work in the same file...
* Fix easy type issues in all but runtime structure
* Fix easy type issues in runtime_structure
* Fix* everything but imports
* Blacken
* Blacken 2
* Typo
* Merge module structure and runtime structure
* Fix instance vs type confusion
* Fix mypy and concrete tests
Still an issue with the symbolic tests
* Still generate symbolic tests though
I keep forgetting not to commit that file...
* Attempt to fix env for symbolic tests
* Blacken/mypy
* Fix missing supplemental environment variables arg
* Fix docstrings for new import style
* CC
* Bump timeout duration to 70 minutes
I don't like it, but adding more jobs to Travis isn't going to make our builds any faster
* Fix pycharm type, import, and docstring errors
* Explain type: ignore
* Missed two type:ignore's
* Fix CLI so it doesn't throw up on arbitrary modules
71 lines
1.9 KiB
YAML
71 lines
1.9 KiB
YAML
dist: trusty
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sudo: required
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os:
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- linux
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language: python
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python:
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- 3.6.6
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stages:
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- lint
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- prepare
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- test
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- submit
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env:
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global:
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- CC_TEST_REPORTER_ID=db72f1ed59628c16eb0c00cbcd629c4c71f68aa1892ef42d18c7c2b8326f460a
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- JOB_COUNT=5 # Five jobs generate test coverage: ethereum, ethereum_vm, native, wasm, and other
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- PYTHONWARNINGS="default::ResourceWarning" # Enable ResourceWarnings
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matrix:
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- TEST_TYPE=examples
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- TEST_TYPE=ethereum
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- TEST_TYPE=ethereum_vm
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- TEST_TYPE=native
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- TEST_TYPE=wasm
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- TEST_TYPE=other
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branches:
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only:
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- master
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- /^(?!wip-).+$/
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cache:
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pip: true
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directories:
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- $HOME/virtualenv/python3.6.6/lib/python3.6/site-packages
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- $HOME/virtualenv/python3.6.6/bin/
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jobs:
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include:
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- stage: lint
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env: TEST_TYPE=lint
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script:
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- black --version
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- git diff --name-only $TRAVIS_COMMIT_RANGE | python3 scripts/pyfile_exists.py | xargs black --check || { echo "Reformat required! Please run 'black <filename>' to reformat changes." ; travis_terminate 1 ; }
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- mypy --version
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- mypy manticore || { echo "mypy type-checking error. Please read the error and fix." ; travis_terminate 1 ; }
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- stage: prepare
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env: TEST_TYPE=env
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script:
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- ./cc-test-reporter before-build
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after_success:
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- stage: submit
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env: TEST_TYPE=env
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script:
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- true
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after_script:
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- aws s3 sync "s3://manticore-testdata/coverage/$TRAVIS_COMMIT" coverage/
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- ./cc-test-reporter sum-coverage --output - --parts $JOB_COUNT coverage/codeclimate.*.json | ./cc-test-reporter upload-coverage --input -
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install:
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- scripts/travis_install.sh $TEST_TYPE
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script:
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- travis_wait 70 scripts/travis_test.sh $TEST_TYPE
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after_success:
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- ./cc-test-reporter format-coverage -t coverage.py -o "coverage/codeclimate.$TEST_TYPE.json"
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- aws s3 sync coverage/ "s3://manticore-testdata/coverage/$TRAVIS_COMMIT"
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