WASM: file system support

[darcy-shen]

WASM: file system support

[darcy-shen]

I guess it is related to xmake-io/xmake#4173, if I set the emcc toolchain proper, it should work!

[darcy-shen]

If I run xmake config -p wasm without setting the PATH for emcc, TB_CONFIG_POSIX_HAVE_OPEN will not be defined.

/* #undef TB_CONFIG_POSIX_HAVE_OPEN */

Using an elvish script like below:

#!/usr/bin/env elvish

xrepo install -y "emscripten 3.1.42"

var pkg_info = (xrepo fetch --json emscripten | from-json)
var emsdk_path = $pkg_info[0][artifacts][installdir]
set-env EMSDK $emsdk_path

xmake config --yes -p wasm -vD

If we set the EMSDK environment variable, TB_CONFIG_POSIX_HAVE_OPEN will be defined.

And the behavior of the related API still need to be checked!

[darcy-shen]

And checked the tbox.config.h in xrepo, TB_CONFIG_POSIX_HAVE_OPEN is not defined.

[waruqi]

这是因为 tbox 默认用的也是全局的 configvar_check_cfuncs，而 wasm 新加的 target 粒度 toolchain 绑定，暂时我也没空改成 target 粒度 check 。。

你可以走 xmake f -p wasm --sdk=/wasm/sdk 全局切 emcc sdk，走全局检测去编译 tbox ，就行了

[Issues-translate-bot]

Bot detected the issue body's language is not English, translate it automatically.

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This is because tbox also uses the global configvar_check_cfuncs by default, and wasm’s newly added target granularity toolchain binding, I have no time to change to target granularity check for the time being. .

You can run xmake f -p wasm --sdk=/wasm/sdk to globally switch to emcc sdk, and run global detection to compile tbox, and that's it.

[waruqi]

等这个 patch #235

[waruqi]

初步可以了，先试试 check 分支

[Issues-translate-bot]

Bot detected the issue body's language is not English, translate it automatically.

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It's okay initially, try the check branch first