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This change as automatically generated by:
$ ./scripts/test/generate_lld_tests.py
$ ./auto_update_tests.py --binaryen-bin=../binaryen-out/bin lld
The changes here are mostly due to:
- llvm now emits names for globals and segments
- emscripten now packs EM_ASM consts into a single contiguous segment
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(#3431)
Also improved the LLD test scripts to accomodate 64-bit tests.
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Emscripten no longer needs this information as of
https://github.com/emscripten-core/emscripten/pull/12643.
This also removes the need to export __data_end.
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The `--no-gc-sections` was added as part of #2857 but is not
needed and in fact changes the output of some tests.
`--experimental-pic` is needed these days when building shared
libraries with emscripten's abi.
After these two changes I verfied that the following command
generated no local changes (i.e. is a no-op):
./scripts/test/generate_lld_tests.py --binaryen-bin=$PWD/../binaryen-out/bin/ $PWD/../llvm-build/bin/ $PWD/../emscripten
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This test verifies that functions in the llvm input source that
do stack pointer manipulation get correctly handled by
`wasm-emscripten-finalize --check-stack-overflow` (StackLimitEnforcer)
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This reverts commit 132daae1e9154782bb1afa5df80dfe7ea35f0369.
This change is the same as before but the fix in #2619 should now make it safe.
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(#2542)" (#2576)
This reverts commit f62e171c38bea14302f9b79f7941a248ea704425.
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* Reland "Fix renaming in FixInvokeFunctionNamesWalker (#2513)"
In the previous iteration of this change we were not calling
`renameFunctions` for each of the functions we removed.
The problem manifested itself when we rename the imported function to
`emscripten_longjmp_jmpbuf` to `emscripten_longjmp`. In this case the
import of `emscripten_longjmp` already exists so we remove the import of
`emscripten_longjmp_jmpbuf` but we were not correclty calling
renameFunctions to handle the rename of all the uses.
Add an additional test case to cover the failures that we saw on the
emscripten tree.
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This reverts commit f0a2e2c75c7bb3008f10b6edbb8dc4cfd27b7d28.
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This fixes https://github.com/emscripten-core/emscripten/issues/9950.
The issue only shows up when debug names are not present so most of
the changes in CL come from disabling debug names in the lld tests.
We want to make sure that wasm-emscripten-finalize runs fine without
debug names so I think it makes most sense to test in this mode.
The actual bugfix is in wasm-emscripten.cpp as part of the
FixInvokeFunctionNamesWalker. The problem was the name of the function
rather than is import name was being added to importRenames. This means
that when debug names were present (and the two names were the same)
we didn't see the bug.
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Don't directly import names from shared.py and support.py, and use
prefixes instead. Also this reorders imports based on PEP
recommendation.
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renamed (#2382)
Fixes https://github.com/WebAssembly/binaryen/issues/2180
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pep8 specifies 4 space indentation. The use of 2 spaces is, I believe
a historical anomaly where certain large organizations such as google
chose 2 over 4 and have yet to make the switch.
Since there isn't too much code in binaryen today it seems reasonable to
make the switch.
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In relocatable code the constant offset might be relative to
__memory_base.
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Convert PIC code generated by llvm to work with the current emscripten
ABI for dynamic linking:
- Convert mutable global imports from GOT.mem and GOT.func into
internal globals.
- Initialize these globals on started up in g$foo and f$foo imported functions
to calculate addresses at runtime.
Also:
- Add a test case for linking and finalizing a shared library
- Allow __stack_pointer global to be non-existent as can be case for
a shared library.
- Allow __stack_pointer global to be an import, as can be the case for
a shared library.
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- Move auto_update_tests.py code into respective scripts
- Use shared argument parsing in generate_lld_tests.py
- Use wasm-ld rather than passing -flavor
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Remove executable bit and #! from scripts that don't have
entry point.
Add missing licence test.
Move arg parsing into a function.
Remove legacy --only_prepare (with underscrore) argument.
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* wasm-link-metadata: Use `__data_end` symbol.
* Add --global-base param to emscripten-wasm-finalize to compute staticBump properly
* Let ModuleWriter write to a provided Output object
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* Skeleton of a beginning of o2wasm, WIP and probably not going to be used
* Get building post-cherry-pick
* ast->ir, remove commented out code, include a debug module print because linking
* Read linking section, print emscripten metadata json
* WasmBinaryWriter emits user sections on Module
* Remove debugging prints, everything that isn't needed to build metadata
* Rename o2wasm to lld-metadata
* lld-metadata support for outputting to file
* Use tables index instead of function index for initializer functions
* Add lld-emscripten tool to add emscripten-runtime functions to wasm modules (built with lld)
* Handle EM_ASM in lld-emscripten
* Add a list of functions to forcibly export (for initializer functions)
* Disable incorrect initializer function reading
* Add error printing when parsing .o files in lld-metadata
* Remove ';; METADATA: ' prefix from lld-metadata, output is now standalone json
* Support em_asm consts that aren't at the start of a segment
* Initial test framework for lld-metadata tool
* Add em_asm test
* Add support for WASM_INIT_FUNCS in the linking section
* Remove reloc section parsing because it's unused
* lld-emscripten can read and write text
* Add test harness for lld-emscripten
* Export all functions for now
* Add missing lld test output
* Add support for reading object files differently
Only difference so far is in importing mutable globals being an object
file representation for symbols, but invalid wasm.
* Update help strings
* Update linking tests for stackAlloc fix
* Rename lld-emscripten,lld-metadata to wasm-emscripten-finalize,wasm-link-metadata
* Add help text to header comments
* auto& instead of auto &
* Extract LinkType to abi/wasm-object.h
* Remove special handling for wasm object file reading, allow mutable globals
* Add braces around default switch case
* Fix flake8 errors
* Handle generating dyncall thunks for imports as well
* Use explicit bool for stackPointerGlobal
* Use glob patterns for lld file iteration
* Use __wasm_call_ctors for all initializer functions
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