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https://github.com/brain-hackers/u-boot-brain
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06b36cb775
Sync the libgcc shift operations with Linux kernel 4.4.6 , commit 0d1912303e54ed1b2a371be0bba51c384dd57326 . Syncing these three files is easy, as there is almost no change in them, except the addition of Thumb support. This patch also defines CONFIG_THUMB2_KERNEL and CONFIG_ARM_ASM_UNIFIED which is necessary for correct build of these files both in ARM and Thumb mode, just like Linux does. 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>
33 lines
555 B
ArmAsm
33 lines
555 B
ArmAsm
/* Copyright 1995, 1996, 1998, 1999, 2000, 2003, 2004, 2005
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Free Software Foundation, Inc.
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <linux/linkage.h>
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#include <asm/assembler.h>
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#ifdef __ARMEB__
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#define al r1
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#define ah r0
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#else
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#define al r0
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#define ah r1
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#endif
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ENTRY(__ashrdi3)
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ENTRY(__aeabi_lasr)
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subs r3, r2, #32
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rsb ip, r2, #32
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movmi al, al, lsr r2
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movpl al, ah, asr r3
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ARM( orrmi al, al, ah, lsl ip )
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THUMB( lslmi r3, ah, ip )
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THUMB( orrmi al, al, r3 )
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mov ah, ah, asr r2
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ret lr
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ENDPROC(__ashrdi3)
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ENDPROC(__aeabi_lasr)
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