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-rw-r--r--meta/recipes-kernel/linux-libc-headers/linux-libc-headers/0001-kbuild-install_headers.sh-Strip-_UAPI-from-if-define.patch41
1 files changed, 41 insertions, 0 deletions
diff --git a/meta/recipes-kernel/linux-libc-headers/linux-libc-headers/0001-kbuild-install_headers.sh-Strip-_UAPI-from-if-define.patch b/meta/recipes-kernel/linux-libc-headers/linux-libc-headers/0001-kbuild-install_headers.sh-Strip-_UAPI-from-if-define.patch
new file mode 100644
index 0000000000..78ebd31e66
--- /dev/null
+++ b/meta/recipes-kernel/linux-libc-headers/linux-libc-headers/0001-kbuild-install_headers.sh-Strip-_UAPI-from-if-define.patch
@@ -0,0 +1,41 @@
+From 9ca6c6a510bda90954aa2532711200b89dd1df89 Mon Sep 17 00:00:00 2001
+From: Dave Martin <Dave.Martin@arm.com>
+Date: Tue, 11 Dec 2018 19:26:45 +0000
+Subject: [PATCH 1/3] kbuild: install_headers.sh: Strip _UAPI from
+ #if-defined() guards
+
+install_headers.sh knows how to strip the _UAPI prefix from #ifdef/
+ifndef and #define directives used to guard headers against multiple
+or inappropriate inclusion. Currently this does not work for guards
+in the "#if defined()" style, which may be needed for non-trivial
+cases.
+
+This patch adds similar logic so that the _UAPI prefix is also
+stripped from guard directives written using "#if defined()" etc.
+
+This is not completely foolproof, but will work for simple cases of
+using #if defined() to guard against inappropriate header inclusion.
+
+Signed-off-by: Dave Martin <Dave.Martin@arm.com>
+Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
+
+Upstream-Status: Submitted [https://www.spinics.net/lists/arm-kernel/msg694800.html]
+---
+ scripts/headers_install.sh | 1 +
+ 1 file changed, 1 insertion(+)
+
+diff --git a/scripts/headers_install.sh b/scripts/headers_install.sh
+index 593f8879c641..fe1d3fc0d33a 100755
+--- a/scripts/headers_install.sh
++++ b/scripts/headers_install.sh
+@@ -38,6 +38,7 @@ do
+ -e 's/(^|[^a-zA-Z0-9])__packed([^a-zA-Z0-9_]|$)/\1__attribute__((packed))\2/g' \
+ -e 's/(^|[[:space:](])(inline|asm|volatile)([[:space:](]|$)/\1__\2__\3/g' \
+ -e 's@#(ifndef|define|endif[[:space:]]*/[*])[[:space:]]*_UAPI@#\1 @' \
++ -e ':1;s/(#(if|elif)(.*[^A-Za-z0-9_])defined\([[:space:]]*)_UAPI/\1/;t1' \
+ "$SRCDIR/$i" > "$OUTDIR/$FILE.sed" || exit 1
+ scripts/unifdef -U__KERNEL__ -D__EXPORTED_HEADERS__ "$OUTDIR/$FILE.sed" \
+ > "$OUTDIR/$FILE"
+--
+2.5.0
+