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authorNick Terrell <terrelln@fb.com>2022-10-21 16:00:35 -0700
committerNick Terrell <terrelln@fb.com>2022-10-21 16:00:35 -0700
commit14e77332e74603efab8347c89d3cda447c3b97c9 (patch)
treeb7b8a48f4f75590266a763c52e072dda32b228ae /scripts/is_rust_module.sh
parent88a309465b3f05a100c3b81966982c0f9f5d23a6 (diff)
parent1d61754caa8c69f566504e63c8b3f3a2df0954c8 (diff)
Merge branch 'main' into zstd-next
Diffstat (limited to 'scripts/is_rust_module.sh')
-rwxr-xr-xscripts/is_rust_module.sh16
1 files changed, 16 insertions, 0 deletions
diff --git a/scripts/is_rust_module.sh b/scripts/is_rust_module.sh
new file mode 100755
index 0000000000000..28b3831a7593f
--- /dev/null
+++ b/scripts/is_rust_module.sh
@@ -0,0 +1,16 @@
+#!/bin/sh
+# SPDX-License-Identifier: GPL-2.0
+#
+# is_rust_module.sh module.ko
+#
+# Returns `0` if `module.ko` is a Rust module, `1` otherwise.
+
+set -e
+
+# Using the `16_` prefix ensures other symbols with the same substring
+# are not picked up (even if it would be unlikely). The last part is
+# used just in case LLVM decides to use the `.` suffix.
+#
+# In the future, checking for the `.comment` section may be another
+# option, see https://github.com/rust-lang/rust/pull/97550.
+${NM} "$*" | grep -qE '^[0-9a-fA-F]+ r _R[^[:space:]]+16___IS_RUST_MODULE[^[:space:]]*$'