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arm: lib: Import Thumb1 functions

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Import functions into lib1funcs.S which are required for Thumb1
build. These functions come from gcc 5.3.1 release.

Signed-off-by: Marek Vasut <marex@denx.de>
Cc: Albert Aribaud <albert.u.boot@aribaud.net>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Marek Vasut 2016-05-26 18:01:45 +02:00 committed by Tom Rini
parent 0bf65c6422
commit 806f86bd82
1 changed files with 53 additions and 0 deletions
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53
arch/arm/lib/lib1funcs.S
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@ -349,3 +349,56 @@ UNWIND(.save {lr})
ldr pc, [sp], #8
UNWIND(.fnend)
ENDPROC(Ldiv0)
/* Thumb-1 specialities */
#if defined(CONFIG_SYS_THUMB_BUILD) && !defined(CONFIG_HAS_THUMB2)
ENTRY(__gnu_thumb1_case_sqi)
push {r1}
mov r1, lr
lsrs r1, r1, #1
lsls r1, r1, #1
ldrsb r1, [r1, r0]
lsls r1, r1, #1
add lr, lr, r1
pop {r1}
bx lr
ENDPROC(__gnu_thumb1_case_sqi)
ENTRY(__gnu_thumb1_case_uqi)
push {r1}
mov r1, lr
lsrs r1, r1, #1
lsls r1, r1, #1
ldrb r1, [r1, r0]
lsls r1, r1, #1
add lr, lr, r1
pop {r1}
bx lr
ENDPROC(__gnu_thumb1_case_uqi)
ENTRY(__gnu_thumb1_case_shi)
push {r0, r1}
mov r1, lr
lsrs r1, r1, #1
lsls r0, r0, #1
lsls r1, r1, #1
ldrsh r1, [r1, r0]
lsls r1, r1, #1
add lr, lr, r1
pop {r0, r1}
bx lr
ENDPROC(__gnu_thumb1_case_shi)
ENTRY(__gnu_thumb1_case_uhi)
push {r0, r1}
mov r1, lr
lsrs r1, r1, #1
lsls r0, r0, #1
lsls r1, r1, #1
ldrh r1, [r1, r0]
lsls r1, r1, #1
add lr, lr, r1
pop {r0, r1}
bx lr
ENDPROC(__gnu_thumb1_case_uhi)
#endif