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| author | Cheng Shao <astrohavoc@gmail.com> | 2022-10-22 18:47:07 +0000 |
|---|---|---|
| committer | Marge Bot <ben+marge-bot@smart-cactus.org> | 2022-11-11 00:26:55 -0500 |
| commit | 65ba328539c3a6f0fa26a7dc182c2de450d836ea (patch) | |
| tree | 89fe5f950f0e2139c7eddd74620837812e7d22b1 | |
| parent | d2d6dfd271b442891b2384203c59d72c7caca5b0 (diff) | |
| download | haskell-65ba328539c3a6f0fa26a7dc182c2de450d836ea.tar.gz | |
rts: RtsStartup: chdir to PWD on wasm32
This patch adds a wasm32-specific behavior to RtsStartup logic. When
the PWD environment variable is present, we chdir() to it first.
The point is to workaround an issue in wasi-libc: it's currently not
possible to specify the initial working directory, it always defaults
to / (in the virtual filesystem mapped from some host directory). For
some use cases this is sufficient, but there are some other cases
(e.g. in the testsuite) where the program needs to access files
outside.
| -rw-r--r-- | rts/RtsStartup.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/rts/RtsStartup.c b/rts/RtsStartup.c index 46749163dc..9495eb3b43 100644 --- a/rts/RtsStartup.c +++ b/rts/RtsStartup.c @@ -252,6 +252,17 @@ hs_init_ghc(int *argc, char **argv[], RtsConfig rts_config) stg_exit(1); } +#if defined(wasm32_HOST_ARCH) + char *pwd = getenv("PWD"); + if (pwd != NULL) { + int chdir_result = chdir(pwd); + if (chdir_result != 0) { + errorBelch("hs_init_ghc: chdir(%s) failed with %d", pwd, chdir_result); + stg_exit(1); + } + } +#endif + setlocale(LC_CTYPE,""); /* Initialise the stats department, phase 0 */ |