We used to collect all binaries into the `bin/` directory. However this
led to confusions since certain commands where available both as
`revng-command` and `revng command`.
This commit moves all the executables except `revng` into
`libexec/revng`, which, according to FHS, is dedicated to "internal
binaries that are not intended to be executed directly by users or shell
scripts".
The revng-translate tool is now a driver for revng-pipeline to perform
the translation.
This commit also drops computing the `-load` "roots". It shouldn't
really be necessary.
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.
This was disabled because it triggered errors when compiling with older
versions of llvm-12 and -Werror.
With llvm-12 this needed anymore, so we can re-enable it
Notable changes:
- Split in multiple files the existing revng-merge-dynamic script
- Add the option to merge additional LOAD segments in the resulting
binary
- Align the new .dynstr to a 4 byte boundary
- Ensure the last verneed entry is marked as such (vn_next == 0)
- Ensure LOAD PHDRs are listed in ascending order,
as mandated by ELF spec
This is intended to be used by all projects that adopt rev.ng coding
conventions for C++. Each project can create a symbolic link to the
installed .clang-format file, so that IDEs and other dev tools can pick
it up easily while keeping it up-to-date when updating revng.
This commit performs the changes necessary in order to integrate with
revng-qa, the new project for cross-project quality assurance.
Basically, the source code of all the tests has been moved in revng-qa,
which will take care of producing "artifacts" (i.e., compiled programs),
using the appropriate cross-compilers.
revng will then consume them and produce new artifacts to be consumed by
other tools down the pipeline.
The directory structure of the tests has been reworked to reflect
`revng-qa`. A large amount of boilerplate code has been dropped.
Note that certain actions, that used to be carried out during testing,
are now part of the regular build process. Specifically, lifting the
tests is performed at build time, so that they can be installed.
At this point, this branch is guaranteed to build without warnings with
our two supported compilers: clang-9 and gcc-9.
The dependencies are:
- llvm-9
- clang-9
- boost-1.71
- c++2a
This commit replicates the structure of the install directory into the
build directory in order to simplify the management of RPATHs.
This commit also drop `QEMU_INSTALL_PATH`.
* Introduce `ShrinkInstructionOperandsPass`: a transformation shrinking
operands and the results of instructions if they are
zero/sign-extended immediately before and after the instruction.
* Introduce `ConstantRangeSet`: similar to `ConstantRange` but allows
disjoint ranges.
* Introduce `MaterializedValue`: a class that can represent a constant
value or a symbol plus offset pair.
* Introduce `DropHelperCallsPass`: a transformation removing calls to
helpers and replacing them with a function call reading the CSVs that
the helper reads and writing the CSVs that the helper writes
(according to CSAA).
* Introduce `DropRangeMetadataPass`: a transformation dropping the
`range` metadata, which, in certain situations, lowers the quality of
the results provided by `LazyValueInfo`.
* Introduce `AdvancedValueInfo`: an analysis exploiting results of
`LazyValueInfo` but collecting them as `ConstantRangeSet` with a
monotone framework. It produces `MaterializedValue`.
* Anticipate linking of helpers: `AVI` requires `CSAA`, which requires
helper functions to be linked in.
* Drop `--no-link`.
* Force x86-64 `DataLayout`.
* Reorganize harvesting to either collect simple literals or go with
(incremental) `AVI`.
* Drop `SET`, `OSRA`, the reaching definition analysis, the
`SimplifyComparisonsPass` and all the sumjump-related code: e now
clone `root`, optimize it and analyze it with `AVI`.
* Temporarily drop the `NoReturnAnalysis`.
* Link `libLLVMInstCombine`, `libLLVMCodeGen` and `libLLVMPasses`.
* Introduce tests for `AdvancedValueInfo`,
`ShrinkInstructionOperandsPass` and `ConstantRangeSet`.
* Fix test results.
* Add `llvm.bswap.i64` and `@pc` to the LLVM template module for unit
tests.
This commit improves the output of `--help` and reduces the output of
`--version`. This commit, when calling `opt`, injects a `LD_PRELOAD`
for `libasan.so` in case a `librevng*.so` library uses it.
When installing programs we used to add to `RPATH` the `../lib`
directory. However, this is not enough, since the analysis libraries
reside in `../lib/revng/analyses`. This commit fixes the issue.
This commit does the following:
* It drops `revamb-dump` and transforms all the passes it featured in
passes that can be used directly from `opt`.
* It rename `revamb` to `revng-lift`.
* It introduces a script called `revng` which acts as a driver for the
whole rev.ng project. It replaces `translate`, `revcc`,
`csv-to-ld-options` and `revamb-dump`, since it offers an `opt`
subcommand which allows to easily invoke all the analysis passes.
* It makes the project a CMake package that can be easily used
externally.
* It allows to easily create libraries of analysis to use through
`revng-opt`.
Pietro Fezzardi