Commit Graph

51 Commits

Author SHA1 Message Date
Ivan Krysak b19572ea67 Model: Leave a note about the alignment 2023-03-15 10:19:02 +01:00
Ivan Krysak 84229d92b1 Model & ABI: make size and alignment stricter 2023-03-15 10:19:02 +01:00
Ivan Krysak 0b1aaeaede Minor improvements 2023-03-15 10:19:01 +01:00
Massimo Fioravanti 4dc2e92782 Introduce DocumentError
`DocumentError`s are the inteded way of propagating errors from the
pipeline to the frontend when a location is required to inform the user
of the error whereabouts.
2023-02-09 13:42:50 +01:00
Djordje Todorovic 961f9e5461 Model: search debug info locally upon import
Also find prototypes in Models of dynamic libs for both PE and ELF.
2022-12-13 11:26:54 +01:00
Massimo Fioravanti 742e1a0c56 TupleTree: switch from public fields to accessors 2022-12-12 18:36:57 +01:00
Alessandro Di Federico 693b361e4a TupleTree: externalize several methods 2022-12-09 09:08:40 +01:00
Pietro Fezzardi df30792435 PrimitiveType: support for 80 and 96 bits types
This commit completes the support of various rare PrimitiveTypes, that
has been added opportunistically over time and has remained inconsistent
across the codebase:

- float80_t
- float96_t
- generic80_t
- generic96_t

The first two are necessary because on some platforms long double is
either 10 or 12 bytes wide.

The second two are necessary because the Generic PrimitiveType should
allow all non-zero byte sizes allowed by any other PrimitiveType.
2022-11-30 15:06:54 +01:00
Pietro Fezzardi 8bf90e8bfd QualifiedType::isScalar: true for model::EnumType 2022-11-30 15:06:54 +01:00
Ivan Krysak 207668070a QualifiedType: add argument-less isPrimitive() 2022-11-30 15:06:54 +01:00
Pietro Fezzardi fd0914b460 QualifiedType: add isConst method 2022-11-22 10:12:31 +01:00
Alvise de Faveri 999df25246 Add revng model export type-graph tool
This tools dumps a type, a function or an entire type-system to a
dot file,representing dependencies between types as edges.
2022-09-19 08:35:06 +02:00
Djordje Todorovic a36e22729f Model: Add PDB support 2022-07-28 14:52:50 +02:00
Antonio Frighetto 4bc21328d8 Model: reserve type prefixes 2022-07-22 16:10:51 +02:00
Alvise de Faveri a3110c0b59 Add QualifiedType::is(TypeKind) 2022-04-20 11:25:46 +02:00
Massimo Fioravanti 44720eedbd Redesign TupleTreeDiff
`TupleTreeDiff` is now type-safe and owns the changes.
2022-04-15 15:14:13 +02:00
Pietro Fezzardi 6b2b2e8ada Make model::Type::edges() method const 2022-04-08 18:58:58 +02:00
Pietro Fezzardi e40ded965f QualifiedType RawFunctionType.StackArgumentsType
The `StackArgumentsType` field of `RawFunctionType` was the only
cross-reference between `model::Type`s that did not use
`model::QualifiedType` but a naked `TupleTreeReference`.

Switching it to `QualifiedType` make all cross-references across
`model::Type`s homogeneous.
2022-04-08 18:58:58 +02:00
Pietro Fezzardi 63a6676551 Make EnumType.UnderlyingType a QualifiedType
This was one of the few places left in the type system where a
`model::Type` referred to another one not using QualifiedType, but a
naked `TupleTreeReference`.

Switching it to be a `model::QualifiedType` makes cross-references
between `model::Type`s more homogenenous, requiring less corner-cases
to handle for whoever manipulates types.
2022-04-08 18:58:58 +02:00
Giacomo Vercesi 039f7db93e model::*: ensure Kind -> Class correspondence 2022-04-08 17:31:05 +02:00
Alessandro Di Federico 67706f05b6 Introduce a never-failing Type::trySize 2022-03-28 12:17:05 +02:00
Pietro Fezzardi fb54cc22a2 QualifiedType: new typedef-aware helper methods
This commit reworks the helper methods for model::QualifiedType, to
properly traverse typedefs.

These methods are used to check if a QualifiedType is:
- scalar
- primitive
- float
- void
- pointer
- array

This commit add the methods for checking pointers and arrays (that
weren't available before), reworks all the helpers so that they all
traverse typedefs, and adds comments so that it's clear that they
traverse typedefs.
2022-03-17 17:03:28 +01:00
Pietro Fezzardi 630fee4500 model::Qualifier: add static methods for filtering
This commit adds the static methods:
- model::Qualifier::isConst
- model::Qualifier::isArray
- model::Qualifier::isPointer

These methods replace the old, non-static, methods:
- model::Qualifier::isConst
- model::Qualifier::isArray
- model::Qualifier::isPointer

Having these method static is very helpful for filtering, when
iterating on sequences of qualifiers, such as:

  for (const auto &Q :
       llvm::make_filter_range(Qualifiers, Qualifier::isPointer)) {
    // do stuff with Q
  }

This will be very helpful for defining other helper functions for
model::QualifiedType.

This commit also drops the non-static version of the methods, since they
are redundant, and because they would cause ambiguity and failure of
type inference in the snippet above, making them effectively useless for
the goal they were designed for, which is filtering ranges.
2022-03-17 17:03:22 +01:00
Pietro Fezzardi 29c50fa909 Model: reserve names defined in stdint.h
This commit adds a bunch of type names and macro names to the set of
reserved keywords that cannot be used for names in the revng Model.
These are the names defined in the stdint.h standard C header, that is
included automatically by the decompiler in decompiled code.

We need to reserve these names otherwise it would be possible to add
things to the revng Model with names that clash with the names defined
in stdint.h, which would in turn break recompilation of decompiled code
because of conflicting definitions.
2022-02-08 15:54:02 +01:00
Alessandro Di Federico 863652f480 Introduce OriginalName in the type system
The goal of `OriginalName` is to keep track of the original name of a
symbol upon import.

In future, this will also be used to promote it to `CustomName`.
2022-01-27 11:51:03 +01:00
Alessandro Di Federico 8d22c5205f Push CustomName to model::Type
Before this commit `CustomName` was in each inheritor, except for
`model::PrimitiveType`.
2022-01-27 11:51:03 +01:00
Alessandro Di Federico b31e7b1f5e Introduce model::Type::edges()
This makes building a graph for the type system very easy.
2022-01-27 11:51:03 +01:00
Alessandro Di Federico 80ed065206 model::Type: move makeTypeWithID to .cpp
It needs to see the full declaration of all concrete types.
2022-01-27 11:51:03 +01:00
Alessandro Di Federico 92ea78b0a8 Fix ReservedKeywords list
Commas were missing.
2022-01-27 11:51:03 +01:00
Alessandro Di Federico c9d47d4ee7 Drop model::EnumEntry::Aliases
They turn out to be problematic to handle in the model and not very
usable in practice.
2022-01-27 11:51:03 +01:00
Alessandro Di Federico d19879d4e8 Minor changes 2022-01-17 16:30:42 +01:00
Filippo Cremonese 74217b4fe5 Generate C++ model from YAML definition
Model classes are now described by a YAML document, which is used to
generate C++ headers containing classes and all the boilerplate
required for YAML serialization/deserialization, usage in
SortedVectors, etc. See the README in include/revng/Model for more
info.
2022-01-13 14:34:11 +01:00
Filippo Cremonese fbeee896e1 Rename model::abi -> model::ABI 2022-01-10 10:31:27 +01:00
Alessandro Di Federico 546efa345a More verbose model verification failures 2022-01-09 19:00:57 +01:00
Pietro Fezzardi b689f7f0c0 lib/Model/Type.cpp: add global using llvm::Twine
This using was defined many times with local scope.
This commit makes it global.
2022-01-05 14:37:37 +01:00
Pietro Fezzardi 94c1c5323a Improve error reporting for model::UnionType 2022-01-05 14:37:37 +01:00
Pietro Fezzardi 09dd05c975 UnionTypes with zero-sized fields don't verify 2022-01-05 14:37:37 +01:00
Pietro Fezzardi a4c9d6c6fd Allow model::StructType with no fields
This is necessary for how we represent the type of the stack frames when
we know about its size but not yet about its fields.
2022-01-05 13:33:52 +01:00
Pietro Fezzardi 275959618f TupleTree: make Root a std::variant<T *, const T*>
This enables holding TupleTreeReferences to immutable model objects
2022-01-05 13:33:52 +01:00
Alessandro Di Federico 09914e56cf model::Type::dump: upcast 2021-12-17 18:48:52 +01:00
Alessandro Di Federico 83f420abda Introduce dump method for model structs 2021-10-21 15:02:00 +02:00
Alessandro Di Federico a023bfa7f5 Introduce ABI handling 2021-10-18 20:44:58 +02:00
Alessandro Di Federico 0dfc81da41 Minor model improvements
* Introduce some documentation for the model.
* Improve the way enums are serialized/deserialized.
* Mark certain fields of model data structures as optional.
* introduces some error messages during model validation.
2021-10-18 20:44:58 +02:00
Alessandro Di Federico 34ae75c800 model: handle 80 bits floats (12 bytes) 2021-10-18 20:44:58 +02:00
Alessandro Di Federico 2fec214959 Fix QualifiedType::isScalar 2021-10-18 20:44:58 +02:00
Pietro Fezzardi a0dbea19e5 Prevent model::Type CustomNames from colliding
This commit reserves the "unnamed_" prefix for revng.
The first use of this reserved prefix is in `model::Type`s
`CustomName`s and `model::Identifier`s.
This commit also makes the `verify()` method stricter for
`model::Identifier` so that an `Identifier` whose name starts with the
reserved prefix does fails verification.
2021-09-02 14:55:47 +02:00
Pietro Fezzardi bae9214652 Stricten verification for model::Identifier
Now only `Identifier`s that are valid C identifiers are guaranteed to
verify.
The `fromString` factory is updated accordingly.
2021-09-02 14:42:47 +02:00
Pietro Fezzardi aa46b03050 Add name() members to various Model types 2021-09-02 14:39:23 +02:00
Pietro Fezzardi 44b348db6a Provide efficient getName for model::Type enums 2021-09-02 14:39:23 +02:00
Pietro Fezzardi b31f6beb1a Make ManagedStatic IDGenerator static 2021-09-02 14:28:58 +02:00