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Автор SHA1 Сообщение Дата
Jun Aruga 4c554096bf wasm/README.md: Add a note about the Ruby built for wasm. [ci skip]
The Ruby built for wasm cannot be execute without a WebAssembly runtime.

```
$ ruby-wasm32-wasi/usr/local/bin/ruby -e 'puts "a"'
bash: ruby-wasm32-wasi/usr/local/bin/ruby: cannot execute binary file: Exec format error
```

Because the Ruby's file type is different from the one built normally, that is
the `/usr/local/ruby-3.2.0-preview2/bin/ruby` below.

```
$ file ruby-wasm32-wasi/usr/local/bin/ruby
ruby-wasm32-wasi/usr/local/bin/ruby: WebAssembly (wasm) binary module version 0x1 (MVP)

$ file /usr/local/ruby-3.2.0-preview2/bin/ruby
/usr/local/ruby-3.2.0-preview2/bin/ruby: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, BuildID[sha1]=a37822085e285c0971159982e7642dda88cea606, for GNU/Linux 3.2.0, with debug_info, not stripped
```
2022-11-11 07:57:25 +09:00
Yuta Saito 3a6cdeda89 [wasm] Scan machine stack based on `ec->machine.stack_{start,end}`
fiber machine stack is placed outside of C stack allocated by wasm-ld,
so highest stack address recorded by `rb_wasm_record_stack_base` is
invalid when running on non-main fiber.
Therefore, we should scan `stack_{start,end}` which always point a valid
stack range in any context.
2022-11-06 05:03:21 +09:00
Yuta Saito 76619bbb11 [wasm] get rid of workaround use of older binaryen and update to latest
We no longer need to use older version of binaryen since the blocker
issue has been resolved https://github.com/WebAssembly/binaryen/issues/4401
2022-07-06 11:59:38 +09:00
Yuta Saito 459bbdeb74 wasm/README.md: add manual config.guess download and autoconf steps
Autoconf distributed with Ubuntu 22.04 is very old and doesn't support
WASI as an OS, so add instructions to download the latest config.guess,
then run `./autogen.sh`.

See also: 2297012efd
2022-03-15 10:25:12 +09:00
Yuta Saito dff70b50d0 [wasm] vm.c: stop unwinding to main for every vm_exec call by setjmp
the original rb_wasm_setjmp implementation always unwinds to the root
call frame to have setjmp compatible interface, and simulate sjlj's
undefined behavior. Therefore, every vm_exec call unwinds to main, and
a deep call stack makes setjmp call very expensive. The following
snippet from optcarrot takes 5s even though it takes less than 0.3s on
native.

```
[0x0, 0x4, 0x8, 0xc].map do |attr|
  (0..7).map do |j|
    (0...0x10000).map do |i|
      clr = i[15 - j] * 2 + i[7 - j]
      clr != 0 ? attr | clr : 0
    end
  end
end
```

This patch adds a WASI specialized vm_exec which uses lightweight
try-catch API without unwinding to the root frame. After this patch, the
above snippet takes only 0.5s.
2022-02-18 18:28:18 +09:00
git a892e5599e * expand tabs. [ci skip]
Tabs were expanded because the file did not have any tab indentation in unedited lines.
Please update your editor config, and use misc/expand_tabs.rb in the pre-commit hook.
2022-01-19 11:19:20 +09:00
Yuta Saito 4f579ecfce [wasm] wasm/README.md: write a brief instruction to cross build 2022-01-19 11:19:06 +09:00
Yuta Saito f72f01abd8 [wasm] add unit test suite for fiber, register scan, sjlj in platform dir 2022-01-19 11:19:06 +09:00
Yuta Saito 7ee786388a [wasm] wasm/missing.{c,h}: add missing libc stubs for wasi-libc 2022-01-19 11:19:06 +09:00
Yuta Saito 65f95f26ff [wasm] add asyncify based setjmp, fiber, register scan emulation
configure.ac: setup build tools and register objects

main.c: wrap main with rb_wasm_rt_start to handle asyncify unwinds

tool/m4/ruby_wasm_tools.m4: setup default command based on WASI_SDK_PATH
environment variable. checks wasm-opt which is used for asyncify.

tool/wasm-clangw wasm/wasm-opt: a clang wrapper which replaces real
wasm-opt with do-nothing wasm-opt to avoid misoptimization before
asyncify. asyncify is performed at POSTLINK, but clang linker driver
tries to run optimization by wasm-opt unconditionally. inlining pass
at wasm level breaks asyncify's assumption, so should not optimize
before POSTLIK.

wasm/GNUmakefile.in: wasm specific rules to compile objects
2022-01-19 11:19:06 +09:00