Commit Graph

4 Commits

Author SHA1 Message Date
Dan Gohman
5216983ad7
Avoid a strdup call in __wasilibc_populate_libpreopen. (#128)
* Avoid a `strdup` call in `__wasilibc_populate_libpreopen`.

Optimize `__wasilibc_populate_libpreopen` to avoid calling `strdup` in
the common case where it's called from `__wasilibc_populate_libpreopen`.

* Convert an if into a ?:.
2019-11-08 11:31:44 -08:00
Dan Gohman
70099d4d1c
Don't link in libpreopen initialization code when it isn't needed. (#127)
* Avoid linking in `populate_libpreopen` when it isn't needed.

* Merge adjacent `if`s using `&&`.
2019-11-08 11:08:22 -08:00
Dan Gohman
a94d2d04e7
Avoid varargs conventions when calling open (#126)
* Add an entrypoint for calling open that bypasses the varargs.

* Add an entrypoint for calling openat that bypasses the varargs.
2019-11-04 16:37:45 -08:00
Dan Gohman
7fcc4f29df
Revamp and simplify the libpreopen code. (#110)
wasi-libc's copy of libpreopen has evolved so many local changes that
it's no longer worth keeping the upstream code structure and marking
changes with __wasilibc_unmodified_upstream.

This PR merges the source files into a single file, removes all
__wasilibc_unmodified_upstream code, eliminates the ability to
allocate multiple preopen lists, eliminates the need for
__wasilibc_init_preopen, eliminates the non-standard eaccess, and
makes several other cleanups. It also enables NDEBUG so that internal
assertions are disabled in release builds.
2019-11-04 14:56:35 -08:00