vasilito
cb424d7448
verify-patch-sanity.py validates every active recipe .patch has internally- consistent hunk line counts — catching the 'malformed patch at line N' failure at commit/CI/preflight time instead of hours into a cook. This cycle hit that class three times (qtwaylandscanner, sddm, xwayland), each only discovered when cookbook tried to apply the patch. Running it across the repo found 29 latent malformed patches (validated against GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22'). They were harmless only because they sit in vendored recipes (baked, not re- applied) — but would fail on any version-bump re-derivation. --fix recounts the hunk headers (body untouched) and repaired all 29. Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test (test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats (empty placeholders, bare-@@ git hunks).
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3.3 KiB
ReStructuredText
139 lines
3.3 KiB
ReStructuredText
.. _BuildingLibunwind:
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==================
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Building libunwind
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==================
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.. contents::
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:local:
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.. _build instructions:
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Getting Started
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===============
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On Mac OS, the easiest way to get this library is to link with -lSystem.
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However if you want to build tip-of-trunk from here (getting the bleeding
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edge), read on.
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The basic steps needed to build libunwind are:
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#. Checkout LLVM, libunwind, and related projects:
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* ``cd where-you-want-llvm-to-live``
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* ``git clone https://github.com/llvm/llvm-project.git``
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#. Configure and build libunwind:
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CMake is the only supported configuration system.
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Clang is the preferred compiler when building and using libunwind.
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* ``cd where you want to build llvm``
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* ``mkdir build``
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* ``cd build``
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* ``cmake -G <generator> -DLLVM_ENABLE_RUNTIMES=libunwind [options] <llvm-monorepo>/runtimes``
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For more information about configuring libunwind see :ref:`CMake Options`.
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* ``make unwind`` --- will build libunwind.
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* ``make check-unwind`` --- will run the test suite.
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Shared and static libraries for libunwind should now be present in llvm/build/lib.
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#. **Optional**: Install libunwind
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If your system already provides an unwinder, it is important to be careful
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not to replace it. Remember Use the CMake option ``CMAKE_INSTALL_PREFIX`` to
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select a safe place to install libunwind.
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* ``make install-unwind`` --- Will install the libraries and the headers
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.. _CMake Options:
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CMake Options
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=============
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Here are some of the CMake variables that are used often, along with a
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brief explanation and LLVM-specific notes. For full documentation, check the
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CMake docs or execute ``cmake --help-variable VARIABLE_NAME``.
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**CMAKE_BUILD_TYPE**:STRING
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Sets the build type for ``make`` based generators. Possible values are
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Release, Debug, RelWithDebInfo and MinSizeRel. On systems like Visual Studio
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the user sets the build type with the IDE settings.
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**CMAKE_INSTALL_PREFIX**:PATH
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Path where LLVM will be installed if "make install" is invoked or the
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"INSTALL" target is built.
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**CMAKE_CXX_COMPILER**:STRING
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The C++ compiler to use when building and testing libunwind.
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.. _libunwind-specific options:
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libunwind specific options
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--------------------------
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.. option:: LIBUNWIND_ENABLE_ASSERTIONS:BOOL
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**Default**: ``ON``
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Toggle assertions independent of the build mode.
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.. option:: LIBUNWIND_ENABLE_PEDANTIC:BOOL
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**Default**: ``ON``
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Compile with -Wpedantic.
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.. option:: LIBUNWIND_ENABLE_WERROR:BOOL
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**Default**: ``OFF``
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Compile with -Werror
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.. option:: LIBUNWIND_ENABLE_SHARED:BOOL
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**Default**: ``ON``
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Build libunwind as a shared library.
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.. option:: LIBUNWIND_ENABLE_STATIC:BOOL
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**Default**: ``ON``
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Build libunwind as a static archive.
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.. option:: LIBUNWIND_ENABLE_CROSS_UNWINDING:BOOL
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**Default**: ``OFF``
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Enable cross-platform unwinding support.
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.. option:: LIBUNWIND_ENABLE_ARM_WMMX:BOOL
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**Default**: ``OFF``
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Enable unwinding support for ARM WMMX registers.
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.. option:: LIBUNWIND_ENABLE_THREADS:BOOL
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**Default**: ``ON``
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Build libunwind with threading support.
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.. option:: LIBUNWIND_INSTALL_LIBRARY_DIR:PATH
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**Default**: ``lib${LIBUNWIND_LIBDIR_SUFFIX}``
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Path where built libunwind libraries should be installed. If a relative path,
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relative to ``CMAKE_INSTALL_PREFIX``.
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.. option:: LIBUNWIND_ENABLE_RUST_SGX:BOOL
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**Default**: ``OFF``
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