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| author | raf <none@none> | 2007-06-13 18:21:20 -0700 |
|---|---|---|
| committer | raf <none@none> | 2007-06-13 18:21:20 -0700 |
| commit | a08cd59e3d5cffe0ba541e434c0880cc98195970 (patch) | |
| tree | a785abadcd617566c29d1f07399043f307c9b19f /usr/src/lib/libc | |
| parent | 6b31a7da9f7af26d4a42fadc3410066f57ee283a (diff) | |
| download | illumos-joyent-a08cd59e3d5cffe0ba541e434c0880cc98195970.tar.gz | |
6562125 sparcv9 strncmp() dumps core on Solaris 7 8 9 10 and nevada
Diffstat (limited to 'usr/src/lib/libc')
| -rw-r--r-- | usr/src/lib/libc/sparcv9/gen/strncmp.s | 32 |
1 files changed, 16 insertions, 16 deletions
diff --git a/usr/src/lib/libc/sparcv9/gen/strncmp.s b/usr/src/lib/libc/sparcv9/gen/strncmp.s index dbb68a1312..56460a213a 100644 --- a/usr/src/lib/libc/sparcv9/gen/strncmp.s +++ b/usr/src/lib/libc/sparcv9/gen/strncmp.s @@ -2,9 +2,8 @@ * CDDL HEADER START * * The contents of this file are subject to the terms of the - * Common Development and Distribution License, Version 1.0 only - * (the "License"). You may not use this file except in compliance - * with the License. + * Common Development and Distribution License (the "License"). + * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. @@ -19,15 +18,13 @@ * * CDDL HEADER END */ + /* - * Copyright (c) 1997,1998 by Sun Microsystems, Inc. - * All rights reserved. - * - * .seg "data" - * .asciz "@(#)strncmp.s 1.2 89/08/16" + * Copyright 2007 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. */ -.ident "%Z%%M% %I% %E% SMI" +#pragma ident "%Z%%M% %I% %E% SMI" .file "%M%" @@ -58,7 +55,7 @@ ENTRY(strncmp) save %sp, -SA(WINDOWSIZE), %sp cmp %i2, 8 - blu,a,pn %xcc, .cmp_bytes ! for small counts go do bytes + blu,a,pn %xcc, .cmp_bytes ! for small counts go do bytes sub %i0, %i1, %i0 ! delay slot, get diff from s1 - s2 andcc %i0, 3, %g0 ! is s1 aligned 1: bz,pn %icc, .iss2 ! if so go check s2 @@ -97,7 +94,7 @@ sub %i0, %i1, %i0 2: deccc 4, %i2 ! n >= 4 ? - bgeu,pt %xcc, 3f + bgeu,a,pt %xcc, 3f lduw [%i1], %i3 ! delay slot dec %i1 ! reset s2 inc %i0 ! reset s1 diff @@ -147,7 +144,7 @@ sub %i0, %i1, %i0 3: deccc 4, %i2 ! n >= 4 ? - bgeu,pt %xcc, 4f + bgeu,a,pt %xcc, 4f lduw [%i1], %i3 ! delay slot dec 3, %i1 ! reset s2 inc 3, %i0 ! reset s1 diff @@ -191,7 +188,7 @@ sub %i0, %i1, %i0 4: deccc 4, %i2 ! n >= 4 ? - bgeu,pt %xcc, 5f + bgeu,a,pt %xcc, 5f lduw [%i1], %i3 ! delay slot dec 2, %i1 ! reset s2 inc 2, %i0 ! reset s1 diff @@ -229,7 +226,10 @@ .w4cmp: sub %i0, %i1, %i0 lduw [%i1], %i5 ! read a word from s1 -5: +5: cmp %i2, 0 + be,a,pn %xcc, .doneq + nop + lduw [%i1], %i5 ! read a word from s1 deccc 4, %i2 ! n >= 4 ? bcs,a,pn %xcc, .cmp_bytes ! do a byte at a time if n < 4 inc 4, %i2 @@ -244,8 +244,8 @@ 1: xor %l3, %i4, %l3 and %l3, %l7, %l3 cmp %l3, %l7 - be,a,pt %icc, 5b - lduw [%i1], %i5 + be,pt %icc, 5b + nop andcc %i4, %l0, %g0 ! check if first byte was zero bnz,pt %icc, 1f |