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Summary:
- `__wasm_init_memory` is now the WebAssembly start function instead
of being called from `__wasm_call_ctors` or called directly by the
runtime.
- Adds a new synthetic data symbol `__wasm_init_memory_flag` that is
atomically incremented from zero to one by the thread responsible
for initializing memory.
- All threads now unconditionally perform data.drop on all passive
segments.
- Removes --passive-segments and --active-segments flags and controls
segment type based on --shared-memory instead. The deleted flags
were only present to ameliorate the upgrade path in Emscripten.
Reviewers: sbc100, aheejin
Subscribers: dschuff, jgravelle-google, sunfish, jfb, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D65783
llvm-svn: 370965
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This patch does the same thing as r365595 to other subdirectories,
which completes the naming style change for the entire lld directory.
With this, the naming style conversion is complete for lld.
Differential Revision: https://reviews.llvm.org/D64473
llvm-svn: 365730
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to reflect the new license.
We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.
Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.
llvm-svn: 351636
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Summary:
This adds support for the 'event section' specified in the exception
handling proposal.
Wasm exception handling binary model spec:
https://github.com/WebAssembly/exception-handling/blob/master/proposals/Exceptions.md#changes-to-the-binary-model
Reviewers: sbc100, ruiu
Subscribers: dschuff, jgravelle-google, sunfish, llvm-commits
Differential Revision: https://reviews.llvm.org/D54875
llvm-svn: 348703
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Differential Revision: https://reviews.llvm.org/D54758
llvm-svn: 347621
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Update use of WebAssemblySignature to go along with D52580
Differential Revision: https://reviews.llvm.org/D52622
llvm-svn: 343734
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This enables callback-style programming where the JavaScript environment
can call back into the Wasm environment using a function pointer
received from the module.
Differential Revision: https://reviews.llvm.org/D44427
llvm-svn: 328643
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Differential Revision: https://reviews.llvm.org/D44150
llvm-svn: 327527
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Differential Revision: https://reviews.llvm.org/D43922
llvm-svn: 326455
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Also add missing tracing to writeU8.
Differential Revision: https://reviews.llvm.org/D43919
llvm-svn: 326398
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This change modified lld to in response the llvm change which
moved to a more explicit symbol table in the object format.
Based on patches by Nicholas Wilson:
1. https://reviews.llvm.org/D41955
2. https://reviews.llvm.org/D42585
The primary difference that we see in the test output is that
for relocatable (-r) output we now have symbol table which
replaces exports/imports and globals.
See: https://github.com/WebAssembly/tool-conventions/issues/38
Differential Revision: https://reviews.llvm.org/D43264
llvm-svn: 325861
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This patch removes `OutRelocations` vector from the InputChunk and
directly consume `Relocations` vector instead. This should make the linker
faster because we don't create a temporary data structure, and it matches
the lld's design principle that we don't create temporary data structures
for object files but instead directly consume mmap'ed data whenever possible.
Differential Revision: https://reviews.llvm.org/D43491
llvm-svn: 325549
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Summary:
- Makes code more in line with LLVM style (e.g. const char * -> StringRef)
- Do not use formatv since we can construct message just by `+`
- Replace some odd types such as `const StringRef` with more common type
- Do not use default arguments if they are not necessary
Reviewers: sbc100
Subscribers: jfb, aheejin, llvm-commits, sunfish
Differential Revision: https://reviews.llvm.org/D43403
llvm-svn: 325383
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llvm-svn: 325377
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See: https://reviews.llvm.org/rL323901
Patch by Nicholas Wilson!
Differential Revision: https://reviews.llvm.org/D42751
llvm-svn: 323903
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This change allows checking of function signatures but
does not yes enable it by default. In this mode, linking
two objects that were compiled with a different signatures
for the same function will produce a link error.
New options for enabling and disabling this feature have been
added: (--check-signatures/--no-check-signatures).
Differential Revision: https://reviews.llvm.org/D40371
llvm-svn: 319396
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This linker backend is still a work in progress but is
enough to link simple programs including linking against
library archives.
Differential Revision: https://reviews.llvm.org/D34851
llvm-svn: 318539
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