Other arches may want to use this to get consistent fixed endian output.
Signed-off-by: Jason Gunthorpe <[email protected]>
---
arch/arm64/kernel/image.h | 14 --------------
include/asm-generic/vmlinux.lds.h | 15 +++++++++++++++
2 files changed, 15 insertions(+), 14 deletions(-)
diff --git a/arch/arm64/kernel/image.h b/arch/arm64/kernel/image.h
index 7bc3ba89790191..1bff6b061b6cab 100644
--- a/arch/arm64/kernel/image.h
+++ b/arch/arm64/kernel/image.h
@@ -14,26 +14,12 @@
#include <asm/image.h>
/*
- * There aren't any ELF relocations we can use to endian-swap values known only
- * at link time (e.g. the subtraction of two symbol addresses), so we must get
- * the linker to endian-swap certain values before emitting them.
- *
* Note that, in order for this to work when building the ELF64 PIE executable
* (for KASLR), these values should not be referenced via R_AARCH64_ABS64
* relocations, since these are fixed up at runtime rather than at build time
* when PIE is in effect. So we need to split them up in 32-bit high and low
* words.
*/
-#ifdef CONFIG_CPU_BIG_ENDIAN
-#define DATA_LE32(data) \
- ((((data) & 0x000000ff) << 24) | \
- (((data) & 0x0000ff00) << 8) | \
- (((data) & 0x00ff0000) >> 8) | \
- (((data) & 0xff000000) >> 24))
-#else
-#define DATA_LE32(data) ((data) & 0xffffffff)
-#endif
-
#define DEFINE_IMAGE_LE64(sym, data) \
sym##_lo32 = DATA_LE32((data) & 0xffffffff); \
sym##_hi32 = DATA_LE32((data) >> 32)
diff --git a/include/asm-generic/vmlinux.lds.h
b/include/asm-generic/vmlinux.lds.h
index b2988aa12f6645..1786a8e4323b9f 100644
--- a/include/asm-generic/vmlinux.lds.h
+++ b/include/asm-generic/vmlinux.lds.h
@@ -56,6 +56,21 @@
#define LOAD_OFFSET 0
#endif
+/*
+ * There aren't any ELF relocations we can use to endian-swap values known only
+ * at link time (e.g. the subtraction of two symbol addresses), so we must get
+ * the linker to endian-swap certain values before emitting them.
+ */
+#ifdef CONFIG_CPU_BIG_ENDIAN
+#define DATA_LE32(data) \
+ ((((data) & 0x000000ff) << 24) | \
+ (((data) & 0x0000ff00) << 8) | \
+ (((data) & 0x00ff0000) >> 8) | \
+ (((data) & 0xff000000) >> 24))
+#else
+#define DATA_LE32(data) ((data) & 0xffffffff)
+#endif
+
/*
* Only some architectures want to have the .notes segment visible in
* a separate PT_NOTE ELF Program Header. When this happens, it needs
--
2.43.0
