6b5bc77c9b
Stefan thinks they don't add value. Command used: sed -i -e '/file is part of /d' $(git grep "file is part of " |egrep ":( */\*.*\*/\$|#|;#|-- | *\* )" | cut -d: -f1 |grep -v crossgcc |grep -v gcov | grep -v /elf.h |grep -v nvramtool) The exceptions are for: - crossgcc (patch file) - gcov (imported from gcc) - elf.h (imported from GNU's libc) - nvramtool (more complicated header) The removed lines are: - fmt.Fprintln(f, "/* This file is part of the coreboot project. */") -# This file is part of a set of unofficial pre-commit hooks available -/* This file is part of coreboot */ -# This file is part of msrtool. -/* This file is part of msrtool. */ - * This file is part of ncurses, designed to be appended after curses.h.in -/* This file is part of pgtblgen. */ - * This file is part of the coreboot project. - /* This file is part of the coreboot project. */ -# This file is part of the coreboot project. -# This file is part of the coreboot project. -## This file is part of the coreboot project. --- This file is part of the coreboot project. -/* This file is part of the coreboot project */ -/* This file is part of the coreboot project. */ -;## This file is part of the coreboot project. -# This file is part of the coreboot project. It originated in the - * This file is part of the coreinfo project. -## This file is part of the coreinfo project. - * This file is part of the depthcharge project. -/* This file is part of the depthcharge project. */ -/* This file is part of the ectool project. */ - * This file is part of the GNU C Library. - * This file is part of the libpayload project. -## This file is part of the libpayload project. -/* This file is part of the Linux kernel. */ -## This file is part of the superiotool project. -/* This file is part of the superiotool project */ -/* This file is part of uio_usbdebug */ Change-Id: I82d872b3b337388c93d5f5bf704e9ee9e53ab3a9 Signed-off-by: Patrick Georgi <pgeorgi@google.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/41194 Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr> Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
117 lines
2.1 KiB
ArmAsm
117 lines
2.1 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Based on linux/arch/arm/lib/memset.S
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*
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* ASM optimised string functions
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*/
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#include <arch/asm.h>
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#include "asmlib.h"
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ENTRY(memset)
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ands r3, r0, #3 @ 1 unaligned?
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mov ip, r0 @ preserve r0 as return value
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bne 6f @ 1
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/*
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* we know that the pointer in ip is aligned to a word boundary.
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*/
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1: orr r1, r1, r1, lsl #8
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orr r1, r1, r1, lsl #16
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mov r3, r1
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cmp r2, #16
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blt 4f
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#if ! CALGN(1)+0
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/*
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* We need 2 extra registers for this loop - use r8 and the LR
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*/
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stmfd sp!, {r8, lr}
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mov r8, r1
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mov lr, r1
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2: subs r2, r2, #64
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stmgeia ip!, {r1, r3, r8, lr} @ 64 bytes at a time.
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stmgeia ip!, {r1, r3, r8, lr}
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stmgeia ip!, {r1, r3, r8, lr}
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stmgeia ip!, {r1, r3, r8, lr}
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bgt 2b
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ldmeqfd sp!, {r8, pc} @ Now <64 bytes to go.
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/*
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* No need to correct the count; we're only testing bits from now on
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*/
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tst r2, #32
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stmneia ip!, {r1, r3, r8, lr}
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stmneia ip!, {r1, r3, r8, lr}
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tst r2, #16
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stmneia ip!, {r1, r3, r8, lr}
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ldmfd sp!, {r8, lr}
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#else
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/*
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* This version aligns the destination pointer in order to write
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* whole cache lines at once.
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*/
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stmfd sp!, {r4-r8, lr}
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mov r4, r1
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mov r5, r1
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mov r6, r1
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mov r7, r1
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mov r8, r1
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mov lr, r1
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cmp r2, #96
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tstgt ip, #31
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ble 3f
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and r8, ip, #31
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rsb r8, r8, #32
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sub r2, r2, r8
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movs r8, r8, lsl #(32 - 4)
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stmcsia ip!, {r4, r5, r6, r7}
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stmmiia ip!, {r4, r5}
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tst r8, #(1 << 30)
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mov r8, r1
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strne r1, [ip], #4
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3: subs r2, r2, #64
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stmgeia ip!, {r1, r3-r8, lr}
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stmgeia ip!, {r1, r3-r8, lr}
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bgt 3b
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ldmeqfd sp!, {r4-r8, pc}
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tst r2, #32
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stmneia ip!, {r1, r3-r8, lr}
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tst r2, #16
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stmneia ip!, {r4-r7}
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ldmfd sp!, {r4-r8, lr}
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#endif
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4: tst r2, #8
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stmneia ip!, {r1, r3}
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tst r2, #4
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strne r1, [ip], #4
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/*
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* When we get here, we've got less than 4 bytes to zero. We
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* may have an unaligned pointer as well.
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*/
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5: tst r2, #2
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strneb r1, [ip], #1
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strneb r1, [ip], #1
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tst r2, #1
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strneb r1, [ip], #1
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mov pc, lr
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6: subs r2, r2, #4 @ 1 do we have enough
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blt 5b @ 1 bytes to align with?
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cmp r3, #2 @ 1
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strltb r1, [ip], #1 @ 1
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strleb r1, [ip], #1 @ 1
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strb r1, [ip], #1 @ 1
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add r2, r2, r3 @ 1 (r2 = r2 - (4 - r3))
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b 1b
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ENDPROC(memset)
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