Add a linker symbol which can be used to mark relocation code, so it can be collected by the linker and copied into a suitable place and executed when needed.
Signed-off-by: Simon Glass sjg@chromium.org ---
include/asm-generic/sections.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+)
diff --git a/include/asm-generic/sections.h b/include/asm-generic/sections.h index 5b040d0acd0..90eba30b68d 100644 --- a/include/asm-generic/sections.h +++ b/include/asm-generic/sections.h @@ -67,6 +67,9 @@ extern char __text_start[]; /* This marks the text region which must be relocated */ extern char __image_copy_start[], __image_copy_end[];
+/* This marks the rcode region used for SPL relocation */ +extern char _rcode_start[], _rcode_end[]; + extern char __bss_end[]; extern char __rel_dyn_start[], __rel_dyn_end[]; extern char _image_binary_end[]; @@ -78,4 +81,17 @@ extern char __dtb[]; */ extern void _start(void);
+#ifndef USE_HOSTCC +#if CONFIG_IS_ENABLED(RELOC_LOADER) +#define __rcode __section(".text.rcode") +#define __rdata __section(".text.rdata") +#else +#define __rcode +#define __rdata +#endif +#else +#define __rcode +#define __rdata +#endif + #endif /* _ASM_GENERIC_SECTIONS_H_ */