Sam Clegg c468dc1b12 [lld][WebAssembly] Handle weakly defined symbols in shared libraries.
In the case of weakly defined symbols in shared libraries we now
generate both an import and an export.  The dynamic linker can then
choose how a winner from among all the shared libraries that define a
given symbol.

Previously any direct usage of a weakly defined symbol would use the
DSO-local definition (For example, even through there would be single
address for a weakly defined function, each DSO could end up directly
calling its local version).

Fixes: https://github.com/emscripten-core/emscripten/issues/13773

Differential Revision: https://reviews.llvm.org/D108413
2021-08-19 19:25:49 -04:00
..
2021-08-04 13:04:10 -07:00

LLVM Linker (lld)

This directory and its subdirectories contain source code for the LLVM Linker, a modular cross platform linker which is built as part of the LLVM compiler infrastructure project.

lld is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt.

Benchmarking

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It is hosted at https://s3-us-west-2.amazonaws.com/linker-tests/lld-speed-test.tar.xz

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