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3dfeab50ad209a67fcdd58c300ddec04532564e6
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31 Commits

Author SHA1 Message Date
Dan Gohman
3dfeab50ad Don't add the NULL terminator to argv and environ arrays. 
The wasm userspace has been updated to do that instead, in
https://github.com/CraneStation/wasi-sysroot/pull/72.
 2019-06-02 08:54:51 +02:00
Dan Gohman
b5f4949597 Avoid using C features which depends on _Generic. 2019-05-27 10:13:33 -07:00
Dan Gohman
1882fc41bb Build sandboxed-system-primitives with -std=gnu99. 2019-05-27 09:14:29 -07:00
Dan Gohman
f486d61629 Make use of static_assert conditional on whether it's available. 2019-05-27 09:07:04 -07:00
Dan Gohman
176538b860 Support GCC and clang versions that lack <stdatomic.h>. 
Add a code path to use the GCC builtins for atomics, which are supported
in older compiler versions, rather than the new <stdatomic.h>.
 2019-05-27 07:48:18 +02:00
Dan Gohman
106c8c4cb6 Remove the polyfill from the master branch. 
The polyfill now lives on the polyfill branch. Add a README.md file
pointing to the new location.
 2019-05-18 15:40:30 -07:00
Will Scott
1320b111eb fix guest iovs pointer mapping 2019-05-18 15:31:14 -07:00
Dan Gohman
67edb00f29 Use getrandom rather than getentropy on Linux for random_get. 
getentropy is limited to 256 bytes, so switch to getrandom.
 2019-05-15 11:44:45 -07:00
Zhuowei Zhang
ca8c8b3370 js-polyfill: support Safari, which doesn't have instantiateStreaming 2019-05-10 14:24:59 -07:00
Jakub Konka
3e94af81df Add Rust impl of wasmtime_ssp_fd_prestat_dir_name 2019-05-07 13:20:55 -07:00
Jakub Konka
d6b2faeeb4 Modify fd_prestat to hold C-str together with its length 2019-05-01 15:32:28 -07:00
Jakub Konka
f7245f40a1 Port host::__wasi_preopentype_t to Rust 2019-05-01 15:32:28 -07:00
Jakub Konka
5c555406ca Add Rust impl of wasmtime_ssp_fd_prestat_get 
In more detail, this commit:
* makes fd_prestat_get safe
* rewrites fd_prestats_get_entry in (safe) Rust
* creates helper macros for rwlock read lock and unlock
 2019-05-01 15:32:28 -07:00
Dan Gohman
b0eab7398d Don't decode the incoming events to poll_oneoff. (#113) 
The events array is an output-only array, so we don't need to decode its
contents.
 2019-04-30 06:42:48 -07:00
Dan Gohman
ce3c0d98d3 Don't rewrite EBUSY to EINVAL in path_rename. 2019-04-29 23:36:21 -07:00
Dan Gohman
049c926e08 Handle set-size rights correctly when truncating a file. 
If a path_open call is requesting __WASI_RIGHT_FD_FILESTAT_SET_SIZE,
interpret that as a request for write privleges. If it is requesting
O_TRUNC, require __WASI_RIGHT_PATH_FILESTAT_SET_SIZE, since this is
a path operation rather than a FD operation.
 2019-04-29 23:34:34 -07:00
Dan Gohman
e62607e552 When path_open fails, set the output fd to -1. 2019-04-29 23:34:13 -07:00
Jakub Konka
86b7a52009 Port host::__wasi_errno_t errors to Rust 
They are now blacklisted in the bindgen.
 2019-04-29 23:33:40 -07:00
Jakub Konka
a51ffb6b6d Add Rust impl of wasmtime_ssp_sched_yield 
Also, add Rust implementation of errno and convert_errno.
 2019-04-29 23:33:40 -07:00
Jakub Konka
69e44caa29 Add Rust impl of wasmtime_ssp_proc_exit 2019-04-27 09:06:41 -07:00
Dan Gohman
e906370661 Make path_open return ELOOP on O_NOFOLLOW|O_DIRECTORY on a symlink. 2019-04-26 14:09:12 -07:00
Dan Gohman
f10cd2f4b1 Don't allow a preopened file descriptor to be renamed over. 
This is consistent with fd_close's behavior, and is likely temporary
until other options are designed.
 2019-04-26 13:06:42 -07:00
Dan Gohman
7813cc9d2d Fix a trace logging message. 2019-04-23 12:08:06 -07:00
Dan Gohman
7e11511abd Remove dead code. 2019-04-07 05:31:57 -07:00
Dan Gohman
07b83c5db3 Add __WASI_RIGHT_PATH_FILESTAT_SET_SIZE to RIGHTS_DIRECTORY_BASE. 
This is a new right not present in CloudABI, which is why the code
previously didn't include it.
 2019-04-05 15:09:14 -07:00
Dan Gohman
cc5efeb54d WASI: Simplify byref translation. 
Avoid needlessly copying data from wasm into the host for output
parameters, and factor out the `.unwrap()` for translating pointers
when writing to output parameters.
 2019-04-01 15:55:40 -07:00
Dan Gohman
5b77f95284 WASI: Implement translation for events and subscriptions. 2019-04-01 15:55:40 -07:00
Dan Gohman
7151c110d7 Implement decode/encode for __wasi_filestat_t. 2019-04-01 13:35:43 -07:00
Dan Gohman
dd0d71b18f Fix name name mangling of WASI functions in the JS polyfill. 
Emscripten prefixes C functions with '_', so these functions end up
having 3 leading underscores.
 2019-04-01 12:48:13 -07:00
Dan Gohman
7378a0bfbe Update Travis from trusty to xenial. (#84) 
* Update Travis from trusty to xenial.

* Don't use getentropy on GLIBC < 2.25.
 2019-03-31 05:46:32 -07:00
Dan Gohman
b2fefe7714 WASI prototype design, implementation, and documentation. 
This adds documents describing the WASI Core API, and an implementation in
Wasmtime.
 2019-03-27 10:58:43 -07:00