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| author | Miguel Ojeda <ojeda@kernel.org> | 2023-07-23 17:21:28 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-05-17 12:56:10 +0300 |
| commit | 53ce433a6d536947189d70c810c8563b12fbcb64 (patch) | |
| tree | 663bcf84c465d39f2098539faecb1cfad1b1ee80 /scripts/Makefile.host | |
| parent | 56633a5e15aa0a7b51e1608c064e74bec1ded73a (diff) | |
| download | linux-53ce433a6d536947189d70c810c8563b12fbcb64.tar.xz | |
kbuild: rust: avoid creating temporary files
[ Upstream commit df01b7cfcef08bf3fdcac2909d0e1910781d6bfd ]
`rustc` outputs by default the temporary files (i.e. the ones saved
by `-Csave-temps`, such as `*.rcgu*` files) in the current working
directory when `-o` and `--out-dir` are not given (even if
`--emit=x=path` is given, i.e. it does not use those for temporaries).
Since out-of-tree modules are compiled from the `linux` tree,
`rustc` then tries to create them there, which may not be accessible.
Thus pass `--out-dir` explicitly, even if it is just for the temporary
files.
Similarly, do so for Rust host programs too.
Reported-by: Raphael Nestler <raphael.nestler@gmail.com>
Closes: https://github.com/Rust-for-Linux/linux/issues/1015
Reported-by: Andrea Righi <andrea.righi@canonical.com>
Tested-by: Raphael Nestler <raphael.nestler@gmail.com> # non-hostprogs
Tested-by: Andrea Righi <andrea.righi@canonical.com> # non-hostprogs
Fixes: 295d8398c67e ("kbuild: specify output names separately for each emission type from rustc")
Cc: stable@vger.kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Tested-by: Martin Rodriguez Reboredo <yakoyoku@gmail.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'scripts/Makefile.host')
| -rw-r--r-- | scripts/Makefile.host | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/scripts/Makefile.host b/scripts/Makefile.host index d812241144d4..a447c91893de 100644 --- a/scripts/Makefile.host +++ b/scripts/Makefile.host @@ -86,7 +86,11 @@ hostc_flags = -Wp,-MMD,$(depfile) \ hostcxx_flags = -Wp,-MMD,$(depfile) \ $(KBUILD_HOSTCXXFLAGS) $(HOST_EXTRACXXFLAGS) \ $(HOSTCXXFLAGS_$(target-stem).o) -hostrust_flags = --emit=dep-info=$(depfile) \ + +# `--out-dir` is required to avoid temporaries being created by `rustc` in the +# current working directory, which may be not accessible in the out-of-tree +# modules case. +hostrust_flags = --out-dir $(dir $@) --emit=dep-info=$(depfile) \ $(KBUILD_HOSTRUSTFLAGS) $(HOST_EXTRARUSTFLAGS) \ $(HOSTRUSTFLAGS_$(target-stem)) |