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authorAlbert ARIBAUD <albert.u.boot@aribaud.net>2013-06-11 14:17:34 +0200
committerAlbert ARIBAUD <albert.u.boot@aribaud.net>2013-06-21 23:05:29 +0200
commit47bd65ef057fb71b02b32741d5cfcaf03e2f0918 (patch)
treeb7313f7c7dda622ae418450fda27b0eda95ac480 /arch/arm
parentd026dec8751378473b4f12eb87717c8059472b3e (diff)
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>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/cpu/ixp/u-boot.lds12
-rw-r--r--arch/arm/cpu/u-boot.lds12
-rw-r--r--arch/arm/lib/relocate.S11
-rw-r--r--arch/arm/lib/sections.c2
4 files changed, 24 insertions, 13 deletions
diff --git a/arch/arm/cpu/ixp/u-boot.lds b/arch/arm/cpu/ixp/u-boot.lds
index 9141199bed..54bafda324 100644
--- a/arch/arm/cpu/ixp/u-boot.lds
+++ b/arch/arm/cpu/ixp/u-boot.lds
@@ -60,10 +60,18 @@ SECTIONS
*(.__image_copy_end)
}
+ .rel_dyn_start :
+ {
+ *(.__rel_dyn_start)
+ }
+
.rel.dyn : {
- __rel_dyn_start = .;
*(.rel*)
- __rel_dyn_end = .;
+ }
+
+ .rel_dyn_end :
+ {
+ *(.__rel_dyn_end)
}
_end = .;
diff --git a/arch/arm/cpu/u-boot.lds b/arch/arm/cpu/u-boot.lds
index d7adf90daf..3037885b12 100644
--- a/arch/arm/cpu/u-boot.lds
+++ b/arch/arm/cpu/u-boot.lds
@@ -62,10 +62,18 @@ SECTIONS
*(.__image_copy_end)
}
+ .rel_dyn_start :
+ {
+ *(.__rel_dyn_start)
+ }
+
.rel.dyn : {
- __rel_dyn_start = .;
*(.rel*)
- __rel_dyn_end = .;
+ }
+
+ .rel_dyn_end :
+ {
+ *(.__rel_dyn_end)
}
_end = .;
diff --git a/arch/arm/lib/relocate.S b/arch/arm/lib/relocate.S
index 3767a9550c..3f444c1d26 100644
--- a/arch/arm/lib/relocate.S
+++ b/arch/arm/lib/relocate.S
@@ -55,10 +55,8 @@ copy_loop:
/*
* 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 @@ relocate_done:
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 03e846fa25..5921dd8d66 100644
--- a/arch/arm/lib/sections.c
+++ b/arch/arm/lib/sections.c
@@ -39,3 +39,5 @@ char __bss_start[0] __attribute__((section(".__bss_start")));
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")));