llvm-project.git/lld, branch users/fmayer/fmayer-patch-1

[LLD][CMake][MSVC] Install PDBs alongside executables (#126680)

2025-05-23T19:58:30+00:00

* Follows up on https://github.com/llvm/llvm-project/pull/120683
installing PDBs for LLD.

[CMake] respect LLVMConfig.cmake's LLVM_DEFINITIONS in standalone builds (#138587)

2025-05-22T05:14:13+00:00

In #138329, _GNU_SOURCE was added for Cygwin, but when building Clang
standalone against an installed LLVM this definition was not picked up,
resulting in undefined strnlen. Follow the documentation in
https://llvm.org/docs/CMake.html#embedding-llvm-in-your-project and add
the LLVM_DEFINITIONS in standalone projects' cmakes.

Fix regression tests with bad FileCheck checks (#140373)

2025-05-22T04:59:57+00:00

Fixes https://github.com/llvm/llvm-project/issues/140149

Revert "[LLVM] Use `reportFatalUsageError` for LTO usage errors" (#141000)

2025-05-22T04:07:38+00:00

The PR causes check-lld fail:
>TEST 'lld :: COFF/lto-cache-errors.ll'

Tested on local revert and pass the check. 

Reverts llvm/llvm-project#140955

[LLVM] Use `reportFatalUsageError` for LTO usage errors (#140955)

2025-05-21T22:21:59+00:00

Usage errors in `LTOBackend.cpp` were previously, misleadingly, reported
as internal crashes.

This PR updates `LTOBackend.cpp` to use `reportFatalUsageError` for
reporting usage-related issues.

LLVM Issue: https://github.com/llvm/llvm-project/issues/140953
Internal Tracker: TOOLCHAIN-17744

[ELF] Error if a section address is smaller than image base

2025-05-21T16:19:47+00:00

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, the result is likely
unintended.

- With `--no-rosegment`, the PT_LOAD segment covering the ELF header cannot include `.text` if `.text`'s address is too low, causing an `error: output file too large`.
- With default `--rosegment`:
  - If a read-only section (e.g., `.rodata`) exists, a similar `error: output file too large` occurs.
  - Without read-only sections, the PT_LOAD segment covering the ELF header and program headers includes no sections, which is unusual and likely undesired. This also causes non-ascending PT_LOAD `p_vaddr` values related to the PT_LOAD that overlaps with PT_PHDR (#138584).

To prevent these issues, report an error if a section address is below
the image base and suggest `--image-base`. This check also applies when
`--image-base` is explicitly set but is skipped when a `SECTIONS`
command is used.

Pull Request: https://github.com/llvm/llvm-project/pull/140187

[lld][WebAssembly] Set the target-cpu in LTO config (#140010)

2025-05-21T00:29:01+00:00

I couldn't find an existing way to pass -mcpu=lime1 equivalent to LTO
codegen.
This commit would privide one. With this commit, you can do so by
passing
`-mllvm -mcpu=lime1` to wasm-ld.

[lld] Drop const from a return type (NFC) (#140667)

2025-05-20T04:37:48+00:00

[lld] Use llvm::stable_sort (NFC) (#140488)

2025-05-19T13:20:00+00:00

[ELF,test] Specify image base to make -Ttext/--section-start tests less sensitive

2025-05-17T06:57:44+00:00

Many tests specify -Ttext, -Tdata, or --section-start without SECTIONS
commands. When the specified address is lower than the image base,

* In the default --ro-segment case, there will be a read-only PT_LOAD segment covering ELF header/program headers, which may cover no section (as many tests omit .rodata). This appears unusual and has non-ascending p_vaddr.
* In the --no-rosegment case, an `error: output file too large` occurs.

We will add a diagnostic (#140187) and possibly change layout. Add
--image-base to make these tests less sensitive.