linux-kernel - [PATCH] rust: Use awk instead of recent xargs

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Message-ID: <20230928202116.2298150-1-mmaurer@google.com>
Date:   Thu, 28 Sep 2023 20:21:16 +0000
From:   Matthew Maurer <mmaurer@...gle.com>
To:     Miguel Ojeda <ojeda@...nel.org>,
        Alex Gaynor <alex.gaynor@...il.com>,
        Wedson Almeida Filho <wedsonaf@...il.com>
Cc:     Matthew Maurer <mmaurer@...gle.com>,
        Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>,
        "Björn Roy Baron" <bjorn3_gh@...tonmail.com>,
        Benno Lossin <benno.lossin@...ton.me>,
        Andreas Hindborg <a.hindborg@...sung.com>,
        Alice Ryhl <aliceryhl@...gle.com>,
        rust-for-linux@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] rust: Use awk instead of recent xargs

`awk` is already required by the kernel build, and the `xargs` feature
used in current Rust detection is not present in all `xargs` (notably,
toybox based xargs, used in the Android kernel build).

Signed-off-by: Matthew Maurer <mmaurer@...gle.com>
---
 rust/Makefile | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/rust/Makefile b/rust/Makefile
index 87958e864be0..0efc5b5cd611 100644
--- a/rust/Makefile
+++ b/rust/Makefile
@@ -365,8 +365,7 @@ quiet_cmd_exports = EXPORTS $@
       cmd_exports = \
 	$(NM) -p --defined-only $< \
 		| grep -E ' (T|R|D) ' | cut -d ' ' -f 3 \
-		| xargs -Isymbol \
-		echo 'EXPORT_SYMBOL_RUST_GPL(symbol);' > $@
+		| awk 'NF {printf "EXPORT_SYMBOL_RUST_GPL(%s);\n",$$0}' > $@
 
 $(obj)/exports_core_generated.h: $(obj)/core.o FORCE
 	$(call if_changed,exports)
-- 
2.42.0.582.g8ccd20d70d-goog