Brandon Fish
2c765c87c5
Update locals reading to use count
2019-03-03 12:55:29 -06:00
Lachlan Sneff
e362b56b07
Turns out we can just throw an exception from the signal handler
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without any fancy tricks.
This has been tested on macos, hopefully it works on linux too.
2019-03-03 02:15:53 -08:00
Lachlan Sneff
9cfda6800f
Try to return an error from call_protected when an exception occurs.
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Something breaks pretty drastically sometimes, not sure why.
2019-03-02 19:08:15 -08:00
Lachlan Sneff
caf2205936
Add a signal handler for macos and linux.
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Implementation Notes:
- To avoid setjmp, longjmp, and the mess that those create, we instead set the interrupting
context of the signal handler to return into the `throw_trap` routine. To my surprise,
this actually works. The stack ends up getting unwound normally and the memory-oob error
is caught by the trampoline.
2019-03-02 17:00:05 -08:00
Lachlan Sneff
57bfa9b0a4
Remove multiple throwing functions, just use one.
2019-03-02 14:16:02 -08:00
Lachlan Sneff
9a90689b93
Add preliminary support for throwing and catching uncatchable exceptions.
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Additional info:
- WebAssembly "traps" are uncatchable, but are still caught by the trampoline caller.
2019-03-02 12:57:35 -08:00
Lachlan Sneff
5760f6006a
Start implementing exception handling by adding frame descriptor entry processing.
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- Soon, we should be able basic exceptions.
2019-03-02 10:56:02 -08:00
Lachlan Sneff
87ddf4f855
Add personality function.
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- This is part of supporting exceptions in the future.
2019-03-02 10:20:18 -08:00
Lachlan Sneff
a6fc06c908
Fix more compiling issues
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Specifically:
- Don't truncate the list of local parameters.
- If the default destination in a br_table instruction is a loop, don't pop any results.
2019-03-02 10:04:44 -08:00
Lachlan Sneff
362e5aa160
Fix issue caused by dangling instruction.
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- Come on inkwell, I thought you were better than this.
2019-03-01 20:28:27 -08:00
Lachlan Sneff
f0ac76517a
Start running spectests
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Additional info:
- Execution is turned off, this is just to make sure the backend can compile the entire specsuite.
- That being said, trampolines are implemented and protected call works (just doesn't protect).
2019-03-01 17:11:20 -08:00
Lachlan Sneff
3717c5720d
Get control flow (at least according to the llvm verifier) working.
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Next up:
- Importing vm intrinsics.
2019-03-01 15:48:43 -08:00
Lachlan Sneff
51c9091fc5
Start work on generating trampolines
2019-02-28 18:26:47 -08:00
Lachlan Sneff
6a20676fa9
Actually unmap the code after it's done being used
2019-02-28 17:20:18 -08:00
Lachlan Sneff
359ac5abec
Connect part of the llvm backend to the runtime
2019-02-28 13:18:00 -08:00
Lachlan Sneff
d4ae5cdd40
Get function addresses from llvm-compiled code
2019-02-28 12:31:39 -08:00
Lachlan Sneff
5d77769381
Hopefully finish the memory manager implementation for llvm RuntimeDyLd
2019-02-27 17:21:20 -08:00
Lachlan Sneff
4f833876e0
Start work on object loader using llvm's RuntimeDyld api.
2019-02-25 18:08:06 -08:00
Lachlan Sneff
2a913f5663
Implement table, partial call_indirect
2019-02-22 17:34:55 -08:00
Lachlan Sneff
108973dabe
Start producing object files with llvm
2019-02-15 16:02:20 -08:00
Lachlan Sneff
73b4f7d337
Implement memory and global operations
2019-02-14 18:08:20 -08:00
Lachlan Sneff
8827830aba
implement load* and store* instructions
2019-02-14 15:13:58 -08:00
Lachlan Sneff
2572a0259b
Get control flow working (fingers crossed)
2019-02-12 18:02:00 -08:00
Lachlan Sneff
5ee19e55a5
Add some branching instructions
2019-02-11 19:34:04 -08:00
Lachlan Sneff
327e3a4a1a
Implement many wasm instructions
2019-02-09 15:53:40 -08:00
