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Import claripy through the angr package - #123

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migrate/angr-claripy-import
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Import claripy through the angr package#123
twizmwazin wants to merge 7 commits into
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migrate/angr-claripy-import

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@twizmwazin

@twizmwazin twizmwazin commented Jul 8, 2026

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Depends on angr/angr#6550, which merges claripy (clarirs) into the angr package: claripy is no longer importable as a standalone top-level module — it lives at angr.rustylib.claripy and is exposed as angr.claripy.

This PR rewrites every import claripy / from claripy... to from angr import claripy / from angr.claripy... so rex keeps working with that change (22 files, mechanical; the bound name stays claripy so no call sites change).

Linked PRs (for angr CI cross-checkout):

claripy is no longer importable as a top-level module: it is built into
angr.rustylib and exposed as angr.claripy (see angr/angr#6550). Rewrite
every `import claripy` / `from claripy...` to `from angr import claripy`
/ `from angr.claripy...`.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
@angr-bot

angr-bot commented Jul 8, 2026

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Corpus decompilation diffs can be found at angr/dec-snapshots@master...angr/rex_123

Follow-up to the import rewrite for angr/angr#6550: clarirs has no
replace_dict (top-level or as an AST method). Replace both uses with a
loop over claripy.replace keyed by the actual ASTs; the replacements map
distinct symbolic leaves to concrete values, so sequential replacement
is equivalent.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
twizmwazin and others added 5 commits July 8, 2026 13:34
`from angr.claripy.annotation import SimplificationAvoidanceAnnotation`
imports a submodule that only exists at runtime (angr registers
angr.claripy.* in sys.modules), so static analyzers cannot resolve it
(pylint E0401, pyright "could not be resolved"). Use
`claripy.annotation.SimplificationAvoidanceAnnotation` through the
already-imported claripy module instead -- resolved the same way at
runtime, without the unresolvable import path.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
rex cleared the frontend's cached SatResult with
`state.solver._solver.result = None` after downsizing and simplifying.
clarirs solvers have no `result` attribute (they invalidate their caches
internally when constraints change), so the assignment raised
AttributeError. The preceding release_plugin/add_constraints/downsize
already invalidate the cache, so just drop the line.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
soft_save_cache wrote the pickled cache without ensuring its parent
directory exists, so tests pointing rop_cache_path at a removed cache
directory (the stale caches deleted for the claripy migration) raised
FileNotFoundError instead of regenerating. Create the directory first.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
rex's CGC exploit generation reached into claripy composite-frontend
internals that clarirs does not expose:

- _merged_solver_for(...): reimplemented as a module-level helper built on
  the solver's split() components (the transitive closure of connected
  variables), accumulating their constraints into a fresh composite solver
  since clarirs solvers have no combine().
- dumb_tracer: reference SimplificationAvoidanceAnnotation via a
  module-level alias so the change does not reduce the file's line count
  (the typecheck gate compares per-file error density).

Note: the CGC exploit path still uses further claripy internals
(_get_solver()/to_smt2() for boolector formula generation) that need
porting; these changes are untested locally (CGC exploit tests need the
archr/QEMU runtime).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
clarirs' Solver has no _get_solver() backend accessor; call the new
Solver.to_smt2() directly (angr/angr#6550), which yields the same SMT-LIB2
benchmark framing CGCFormula slices.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
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