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author | Ulrich Drepper <drepper@redhat.com> | 2000-05-21 22:04:15 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2000-05-21 22:04:15 +0000 |
commit | 5bfc425236ac2105b8642715db83fe39f55640d2 (patch) | |
tree | 1bbabd86dcd7381b1bea6ab451a0848415d65220 /sysdeps/ia64/strcat.S | |
parent | 99a206167bd94400d129991e1ec257820eb6df00 (diff) | |
download | glibc-5bfc425236ac2105b8642715db83fe39f55640d2.tar.gz glibc-5bfc425236ac2105b8642715db83fe39f55640d2.tar.xz glibc-5bfc425236ac2105b8642715db83fe39f55640d2.zip |
Update.
* sysdeps/ia64/memccpy.S: New file. * sysdeps/ia64/memchr.S: New file. * sysdeps/ia64/memcmp.S: New file. * sysdeps/ia64/memcpy.S: New file. * sysdeps/ia64/memmove.S: New file. * sysdeps/ia64/memset.S: New file. * sysdeps/ia64/strcat.S: New file. * sysdeps/ia64/strchr.S: New file. * sysdeps/ia64/strcmp.S: New file. * sysdeps/ia64/strcpy.S: New file. * sysdeps/ia64/strlen.S: New file. * sysdeps/ia64/strncmp.S: New file. * sysdeps/ia64/strncpy.S: New file. * sysdeps/ia64/softpipe.h: New file. Patches by Dan Pop <Dan.Pop@cern.ch>. * manual/memory.texi: Document memory handling functions (mlock, munlock, mlockall, munlockall, brk, and sbrk)
Diffstat (limited to 'sysdeps/ia64/strcat.S')
-rw-r--r-- | sysdeps/ia64/strcat.S | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/sysdeps/ia64/strcat.S b/sysdeps/ia64/strcat.S new file mode 100644 index 0000000000..d8afacbe09 --- /dev/null +++ b/sysdeps/ia64/strcat.S @@ -0,0 +1,60 @@ +/* IA-64 assembly version of the standard strcat() function. + This file is part of the GNU C Library. + Copyright (C) 2000 Free Software Foundation, Inc. + Contributed by Dan Pop <Dan.Pop@cern.ch>. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +/* Return: dest + + Inputs: + in0: dest + in1: src + + A straightforword implementation: strcpy(dest + strlen(dest), src). + + Could be marginally optimised by inlining the code of strcpy() and + strlen(), to avoid the two function calls. OTOH, by not doing that, + we avoid L1I cache pollution (code using strcat() is likely to also + use strcpy() and strlen(), so we already have a copy of these functions + in the cache). */ + +#include <sysdep.h> +#undef ret + +#define src in1 +#define dest in0 +#define save_pfs loc0 +#define save_b0 loc1 +#define tmp loc2 +#define rc ret0 + +ENTRY(strcat) + alloc save_pfs = ar.pfs, 2, 3, 2, 0 + mov save_b0 = b0 + mov out0 = dest + mov tmp = gp ;; + br.call.sptk.many b0 = strlen# ;; // rc = strlen(dest); + mov gp = tmp + add out0 = dest, rc + mov out1 = src + br.call.sptk.many b0 = strcpy# ;; // strcpy(dest + strlen(dest), src) + mov gp = tmp + mov rc = dest + mov b0 = save_b0 + mov ar.pfs = save_pfs + br.ret.sptk.many b0 +END(strcat) |