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| author | Sascha Hauer <s.hauer@pengutronix.de> | 2018-03-07 09:17:13 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2018-03-21 12:23:02 +0100 |
| commit | 07172d63f31109c89012ddf0c5470c57c65c38a6 (patch) | |
| tree | f12e4c8aba73b154c1930c5b4c0c4e88c710d04a /arch/arm/lib64 | |
| parent | 7fe6896739fea73912b06df7026443a4a9c61f58 (diff) | |
| download | barebox-07172d63f31109c89012ddf0c5470c57c65c38a6.tar.gz barebox-07172d63f31109c89012ddf0c5470c57c65c38a6.tar.xz | |
ARM: aarch64: Add runtime-offset
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/lib64')
| -rw-r--r-- | arch/arm/lib64/Makefile | 1 | ||||
| -rw-r--r-- | arch/arm/lib64/runtime-offset.S | 19 |
2 files changed, 20 insertions, 0 deletions
diff --git a/arch/arm/lib64/Makefile b/arch/arm/lib64/Makefile index 4b7b7e3cc5..679ca556e5 100644 --- a/arch/arm/lib64/Makefile +++ b/arch/arm/lib64/Makefile @@ -3,5 +3,6 @@ obj-y += div0.o obj-$(CONFIG_ARM_OPTIMZED_STRING_FUNCTIONS) += memcpy.o obj-$(CONFIG_ARM_OPTIMZED_STRING_FUNCTIONS) += memset.o extra-y += barebox.lds +obj-pbl-y += runtime-offset.o pbl-y += div0.o diff --git a/arch/arm/lib64/runtime-offset.S b/arch/arm/lib64/runtime-offset.S new file mode 100644 index 0000000000..177ca64784 --- /dev/null +++ b/arch/arm/lib64/runtime-offset.S @@ -0,0 +1,19 @@ +#include <linux/linkage.h> +#include <asm/assembler.h> + +.section ".text_bare_init","ax" + +/* + * Get the offset between the link address and the address + * we are currently running at. + */ +ENTRY(get_runtime_offset) +1: adr x0, 1b + ldr x1, linkadr + subs x0, x0, x1 + ret + +.align 3 +linkadr: +.quad get_runtime_offset +ENDPROC(get_runtime_offset) |