[PATCH v3 06/23] riscv: define generic relocate_image

[Sascha Hauer <s.hauer@pengutronix.de>]

For use by the ELF loader in PBL to relocate barebox proper, export a
new relocate_image capable of relocating barebox and implement
relocate_to_current_adr() in terms of it.

Reviewed-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 arch/riscv/lib/reloc.c | 27 +++++++++++++--------------
 1 file changed, 13 insertions(+), 14 deletions(-)

diff --git a/arch/riscv/lib/reloc.c b/arch/riscv/lib/reloc.c
index 0c1ec8b4880227d16ab5e7b580244f1db2e967ec..18b13a7013cff4032c12b999470f265dbda13c51 100644
--- a/arch/riscv/lib/reloc.c
+++ b/arch/riscv/lib/reloc.c
@@ -30,26 +30,15 @@ void sync_caches_for_execution(void)
 	local_flush_icache_all();
 }
 
-void relocate_to_current_adr(void)
+static void relocate_image(unsigned long offset,
+			   void *dstart, void *dend,
+			   long *dynsym, long *dynend)
 {
-	unsigned long offset;
-	unsigned long *dynsym;
-	void *dstart, *dend;
 	Elf_Rela *rela;
 
-	/* Get offset between linked address and runtime address */
-	offset = get_runtime_offset();
 	if (!offset)
 		return;
 
-	/*
-	 * We have yet to relocate, so using runtime_address
-	 * to compute the relocated address
-	 */
-	dstart = runtime_address(__rel_dyn_start);
-	dend = runtime_address(__rel_dyn_end);
-	dynsym = runtime_address(__dynsym_start);
-
 	for (rela = dstart; (void *)rela < dend; rela++) {
 		unsigned long *fixup;
 
@@ -74,5 +63,15 @@ void relocate_to_current_adr(void)
 		}
 	}
 
+}
+
+void relocate_to_current_adr(void)
+{
+	relocate_image(get_runtime_offset(),
+		       runtime_address(__rel_dyn_start),
+		       runtime_address(__rel_dyn_end),
+		       runtime_address(__dynsym_start),
+		       NULL);
+
 	sync_caches_for_execution();
 }

-- 
2.47.3