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arm: move image_copy_start/end to linker symbols

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image_copy_start/end are defined as c variables in order to force the compiler
emit relative references. However, defining those within a section definition
will do the same thing since [0].

So let's remove the special sections from the linker scripts, the
variable definitions from sections.c and define them as a symbols within
a section.

[0] binutils commit 6b3b0ab89663 ("Make linker assigned symbol dynamic only for shared object")

Suggested-by: Sam Edwards <CFSworks@gmail.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Tested-by: Sam Edwards <CFSworks@gmail.com> # Binary output identical
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
This commit is contained in:
Ilias Apalodimas
2024-03-15 08:43:50 +02:00
committed by Tom Rini
parent c0802104d6
commit 4ee32ea0c4
9 changed files with 15 additions and 32 deletions
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2
arch/arm/lib/sections.c
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@@ -19,8 +19,6 @@
* aliasing warnings.
*/
char __image_copy_start[0] __section(".__image_copy_start");
char __image_copy_end[0] __section(".__image_copy_end");
char __secure_start[0] __section(".__secure_start");
char __secure_end[0] __section(".__secure_end");
char __secure_stack_start[0] __section(".__secure_stack_start");