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Diffstat (limited to 'lld/docs/ReleaseNotes.rst')
| -rw-r--r-- | lld/docs/ReleaseNotes.rst | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/lld/docs/ReleaseNotes.rst b/lld/docs/ReleaseNotes.rst index 863b201..6f60efd 100644 --- a/lld/docs/ReleaseNotes.rst +++ b/lld/docs/ReleaseNotes.rst @@ -25,70 +25,9 @@ Non-comprehensive list of changes in this release ELF Improvements ---------------- -* Added ``-z dynamic-undefined-weak`` to make undefined weak symbols dynamic - when the dynamic symbol table is present. - (`#143831 <https://github.com/llvm/llvm-project/pull/143831>`_) -* For ``-z undefs`` (default for ``-shared``), relocations referencing undefined - strong symbols now behave like relocations referencing undefined weak symbols. -* ``--why-live=<glob>`` prints for each symbol matching ``<glob>`` a chain of - items that kept it live during garbage collection. This is inspired by the - Mach-O LLD feature of the same name. -* ``--thinlto-distributor=`` and ``--thinlto-remote-compiler=`` options are - added to support Integrated Distributed ThinLTO. - (`#142757 <https://github.com/llvm/llvm-project/pull/142757>`_) -* Linker script ``OVERLAY`` descriptions now support virtual memory regions - (e.g. ``>region``) and ``NOCROSSREFS``. -* When the last ``PT_LOAD`` segment is executable and includes BSS sections, - its ``p_memsz`` member is now correct. - (`#139207 <https://github.com/llvm/llvm-project/pull/139207>`_) -* Spurious ``ASSERT`` errors before the layout converges are now fixed. - -* For ARM and AArch64, ``--xosegment`` and ``--no-xosegment`` control whether - to place executable-only and readable-executable sections in the same - segment. The default option is ``--no-xosegment``. - (`#132412 <https://github.com/llvm/llvm-project/pull/132412>`_) -* For AArch64, added support for the ``SHF_AARCH64_PURECODE`` section flag, - which indicates that the section only contains program code and no data. - An output section will only have this flag set if all input sections also - have it set. (`#125689 <https://github.com/llvm/llvm-project/pull/125689>`_, - `#134798 <https://github.com/llvm/llvm-project/pull/134798>`_) -* For AArch64 and ARM, added ``-zexecute-only-report``, which checks for - missing ``SHF_AARCH64_PURECODE`` and ``SHF_ARM_PURECODE`` section flags - on executable sections. - (`#128883 <https://github.com/llvm/llvm-project/pull/128883>`_) -* For AArch64, ``-z nopac-plt`` has been added. -* For AArch64 and X86_64, added ``--branch-to-branch``, which rewrites branches - that point to another branch instruction to instead branch directly to the - target of the second instruction. Enabled by default at ``-O2``. -* For AArch64, added support for ``-zgcs-report-dynamic``, enabling checks for - GNU GCS Attribute Flags in Dynamic Objects when GCS is enabled. Inherits value - from ``-zgcs-report`` (capped at ``warning`` level) unless user-defined, - ensuring compatibility with GNU ld linker. -* The default Hexagon architecture version in ELF object files produced by - lld is changed to v68. This change is only effective when the version is - not provided in the command line by the user and cannot be inferred from - inputs. -* For LoongArch, the initial-exec to local-exec TLS optimization has been implemented. -* For LoongArch, several relaxation optimizations are supported, including relaxation for - ``R_LARCH_PCALA_HI20/LO12`` and ``R_LARCH_GOT_PC_HI20/LO12`` relocations, instruction - relaxation for ``R_LARCH_CALL36``, TLS local-exec (``LE``)/global dynamic (``GD``)/ - local dynamic (``LD``) model relaxation, and TLSDESC code sequence relaxation. -* For RISCV, an oscillation bug due to call relaxation is now fixed. - (`#142899 <https://github.com/llvm/llvm-project/pull/142899>`_) -* For x86-64, the ``.ltext`` section is now placed before ``.rodata``. - Breaking changes ---------------- -* Executable-only and readable-executable sections are now allowed to be placed - in the same segment by default. Pass ``--xosegment`` to lld in order to get - the old behavior back. - -* When using ``--no-pie`` without a ``SECTIONS`` command, the linker uses the - target's default image base. If ``-Ttext=`` or ``--section-start`` specifies - an output section address below this base, there will now be an error. - ``--image-base`` can be set at a lower address to fix the error. - (`#140187 <https://github.com/llvm/llvm-project/pull/140187>`_) COFF Improvements ----------------- |