The Image header contains many constants that should be emitted in little
endian regardless of the endianness of the kernel. Add helper macros le16,
le32 and le64 to <asm/assembler.h> to aid with this.

Signed-off-by: Ard Biesheuvel <ard.biesheu...@linaro.org>
---
 arch/arm64/include/asm/assembler.h | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/arm64/include/asm/assembler.h 
b/arch/arm64/include/asm/assembler.h
index 5901480bfdca..7db7c946f73f 100644
--- a/arch/arm64/include/asm/assembler.h
+++ b/arch/arm64/include/asm/assembler.h
@@ -155,3 +155,21 @@ lr .req    x30             // link register
 #endif
        orr     \rd, \lbits, \hbits, lsl #32
        .endm
+
+       /*
+        * Define LE constants
+        */
+       .macro          le16, x
+       .byte           \x & 0xff
+       .byte           (\x >> 8) & 0xff
+       .endm
+
+       .macro          le32, x
+       le16            \x
+       le16            \x >> 16
+       .endm
+
+       .macro          le64, x
+       le32            \x
+       le32            \x >> 32
+       .endm
-- 
1.8.3.2

--
To unsubscribe from this list: send the line "unsubscribe linux-efi" in
the body of a message to majord...@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to