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Added arm64 assembly for examples/api crt0

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I've encountered a problem when compiling the 'examples/api' directory for ARM64 in U-boot. The problem lies in the assembly code in 'examples/api/crt0.S' where the current CONFIG_ARM code is only 32-bit. When targeting ARM64, a 64-bit version is necessary.

I have proposed a fix by including a 'CONFIG_ARM64' section in the assembly code as shown below.  These changes have been check via https://github.com/u-boot/u-boot/pull/538.

Feedback is welcome.

Signed-off-by: Kalen Brunham <kalen.brunham@intel.com>
This commit is contained in:
Brunham, Kalen 2024-05-17 19:13:48 +00:00 committed by Tom Rini
parent 17b1656dcd
commit f9886bc60f
1 changed files with 15 additions and 0 deletions
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15
examples/api/crt0.S
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@ -33,6 +33,21 @@ _start:
str sp, [ip]
b main
#elif defined(CONFIG_ARM64)
.text
.globl _start
_start:
ldr ip0, =search_hint
str sp_el2, [ip0]
b main
.globl syscall
syscall:
ldr ip0, =syscall_ptr
ldr pc_el2, [ip0]
.globl syscall
syscall: