tree 2e5ced9fc6c953216be790d69f221e047599e7fd
parent 9fe41c9e49aaa84a622a958121328f8313271657
parent d62283f8f927307a00fd79ff07272e9a4b8d06c2
author Jacob Pratt <jacob@jhpratt.dev> 1780868873 -0400
committer GitHub <noreply@github.com> 1780868873 -0400
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Rollup merge of #157399 - kulst:llbc-linker-output-fix, r=Mark-Simulacrum

Silence llbc's output by default to prevent rustc's linker output warning

https://github.com/rust-lang/rust/pull/153968 recently made visible that the llvm-bitcode-linker (llbc) always emits messages to stdout even when linking successfully. Additionally, these messages use ANSI escape sequences for coloring, which don't get rendered correctly.

This patch fixes both.

- It silences llbc's output by default and adds a verbosity command line argument to it (`-v` for verbose and `-vv` for very verbose, which can be added by using rustc's `-Clink-arg=` argument).
-  It also removes the ANSI escape sequences and makes the output more linker-like (by removing timestamps, tracing-level, tracing-target).

cc: @kjetilkjeka

@rustbot label +L-linker_messages +O-NVPTX