arm: make __rel_dyn_{start, end} compiler-generated
This change is only done where needed: some linker
scripts may contain relocation symbols yet remain
unchanged.
__rel_dyn_start and __rel_dyn_end each requires
its own output section; putting them in relocation
sections changes their flags and breaks relocation.
Signed-off-by: Albert ARIBAUD <albert.u.boot@aribaud.net>
Tested-by: Lubomir Popov <lpopov@mm-sol.com>
Tested-by: Jeroen Hofstee <jeroen@myspectrum.nl>
Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
diff --git a/arch/arm/lib/relocate.S b/arch/arm/lib/relocate.S
index 3767a95..3f444c1 100644
--- a/arch/arm/lib/relocate.S
+++ b/arch/arm/lib/relocate.S
@@ -55,10 +55,8 @@
/*
* fix .rel.dyn relocations
*/
- ldr r2, _rel_dyn_start_ofs /* r2 <- __rel_dyn_start local ofs */
- add r2, r2, r7 /* r2 <- SRC &__rel_dyn_start */
- ldr r3, _rel_dyn_end_ofs /* r3 <- __rel_dyn_end local ofs */
- add r3, r3, r7 /* r3 <- SRC &__rel_dyn_end */
+ ldr r2, =__rel_dyn_start /* r2 <- SRC &__rel_dyn_start */
+ ldr r3, =__rel_dyn_end /* r3 <- SRC &__rel_dyn_end */
fixloop:
ldr r0, [r2] /* r0 <- SRC location to fix up */
add r0, r0, r9 /* r0 <- DST location to fix up */
@@ -88,9 +86,4 @@
bx lr
#endif
-_rel_dyn_start_ofs:
- .word __rel_dyn_start - relocate_code
-_rel_dyn_end_ofs:
- .word __rel_dyn_end - relocate_code
-
ENDPROC(relocate_code)
diff --git a/arch/arm/lib/sections.c b/arch/arm/lib/sections.c
index 03e846f..5921dd8 100644
--- a/arch/arm/lib/sections.c
+++ b/arch/arm/lib/sections.c
@@ -39,3 +39,5 @@
char __bss_end[0] __attribute__((section(".__bss_end")));
char __image_copy_start[0] __attribute__((section(".__image_copy_start")));
char __image_copy_end[0] __attribute__((section(".__image_copy_end")));
+char __rel_dyn_start[0] __attribute__((section(".__rel_dyn_start")));
+char __rel_dyn_end[0] __attribute__((section(".__rel_dyn_end")));