Greg Kroah-Hartman
598cf27219
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org Tested-by: Florian Fainelli <florian.fainelli@broadcom.com> Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com> Tested-by: Peter Schneider <pschneider1968@googlemail.com> Tested-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Salvatore Bonaccorso <carnil@debian.org> Tested-by: Brett A C Sheffield <bacs@librecast.net> Tested-by: Mark Brown <broonie@kernel.org> Tested-by: Luna Jernberg <droidbittin@gmail.com> Tested-by: Ronald Warsow <rwarsow@gmx.de> Tested-by: Justin M. Forbes <jforbes@fedoraproject.org> Tested-by: Ron Economos <re@w6rz.net> Tested-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
122 lines
1.3 KiB
ArmAsm
122 lines
1.3 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* strncmp.S: Hand optimized Sparc assembly of GCC output from GNU libc
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* generic strncmp routine.
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*/
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#include <linux/export.h>
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#include <linux/linkage.h>
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.text
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ENTRY(strncmp)
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mov %o0, %g3
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mov 0, %o3
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cmp %o2, 3
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ble 7f
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mov 0, %g2
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sra %o2, 2, %o4
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ldub [%g3], %o3
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0:
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ldub [%o1], %g2
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add %g3, 1, %g3
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and %o3, 0xff, %o0
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cmp %o0, 0
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be 8f
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add %o1, 1, %o1
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cmp %o0, %g2
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be,a 1f
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ldub [%g3], %o3
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retl
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sub %o0, %g2, %o0
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1:
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ldub [%o1], %g2
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add %g3,1, %g3
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and %o3, 0xff, %o0
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cmp %o0, 0
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be 8f
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add %o1, 1, %o1
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cmp %o0, %g2
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be,a 1f
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ldub [%g3], %o3
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retl
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sub %o0, %g2, %o0
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1:
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ldub [%o1], %g2
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add %g3, 1, %g3
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and %o3, 0xff, %o0
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cmp %o0, 0
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be 8f
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add %o1, 1, %o1
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cmp %o0, %g2
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be,a 1f
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ldub [%g3], %o3
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retl
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sub %o0, %g2, %o0
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1:
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ldub [%o1], %g2
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add %g3, 1, %g3
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and %o3, 0xff, %o0
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cmp %o0, 0
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be 8f
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add %o1, 1, %o1
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cmp %o0, %g2
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be 1f
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add %o4, -1, %o4
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retl
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sub %o0, %g2, %o0
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1:
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cmp %o4, 0
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bg,a 0b
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ldub [%g3], %o3
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b 7f
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and %o2, 3, %o2
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9:
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ldub [%o1], %g2
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add %g3, 1, %g3
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and %o3, 0xff, %o0
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cmp %o0, 0
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be 8f
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add %o1, 1, %o1
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cmp %o0, %g2
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be 7f
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add %o2, -1, %o2
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8:
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retl
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sub %o0, %g2, %o0
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7:
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cmp %o2, 0
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bg,a 9b
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ldub [%g3], %o3
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and %g2, 0xff, %o0
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retl
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sub %o3, %o0, %o0
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ENDPROC(strncmp)
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EXPORT_SYMBOL(strncmp)
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