diff options
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/libc/ia64/gen/Makefile.inc | 8 | ||||
| -rw-r--r-- | lib/libc/ia64/gen/_mcount.S | 75 |
2 files changed, 79 insertions, 4 deletions
diff --git a/lib/libc/ia64/gen/Makefile.inc b/lib/libc/ia64/gen/Makefile.inc index 1eb7264..5358ea8 100644 --- a/lib/libc/ia64/gen/Makefile.inc +++ b/lib/libc/ia64/gen/Makefile.inc @@ -1,10 +1,10 @@ # $FreeBSD$ SRCS+= __divdf3.S __divdi3.S __divsf3.S __divsi3.S __moddi3.S __modsi3.S \ - __udivdi3.S __udivsi3.S __umoddi3.S __umodsi3.S _setjmp.S fabs.S \ - _set_tp.c flt_rounds.c fpgetmask.c fpgetround.c fpsetmask.c \ - fpsetround.c infinity.c \ - ldexp.c makecontext.c modf.c setjmp.S signalcontext.c sigsetjmp.S + __udivdi3.S __udivsi3.S __umoddi3.S __umodsi3.S _mcount.S _set_tp.c \ + _setjmp.S fabs.S flt_rounds.c fpgetmask.c fpgetround.c fpsetmask.c \ + fpsetround.c infinity.c ldexp.c makecontext.c modf.c setjmp.S \ + signalcontext.c sigsetjmp.S # The following may go away if function _Unwind_FindTableEntry() # will be part of GCC. diff --git a/lib/libc/ia64/gen/_mcount.S b/lib/libc/ia64/gen/_mcount.S new file mode 100644 index 0000000..d9e9b76 --- /dev/null +++ b/lib/libc/ia64/gen/_mcount.S @@ -0,0 +1,75 @@ +/* + * Copyright (c) 2004 Marcel Moolenaar + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR + * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. + * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT + * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <machine/asm.h> +__FBSDID("$FreeBSD$"); + + .text + +/* + * Important registers: + * r8 structure return address + * r15 static link (nested routines) + * rp our return address + * in0 caller's ar.pfs + * in1 caller's gp + * in2 caller's rp + * in3 GOT entry + * ar.pfs our pfs + */ +ENTRY_NOPROFILE(_mcount, 4) + alloc loc0 = ar.pfs, 4, 4, 2, 0 + mov loc1 = r8 + mov loc2 = rp + mov loc3 = r15 + ;; + mov out0 = in2 + mov out1 = rp + br.call.sptk rp = __mcount + ;; +1: + mov gp = in1 + mov r14 = ip + mov b7 = loc2 + ;; + add r14 = 2f - 1b, r14 + mov ar.pfs = loc0 + mov rp = in2 + ;; + mov r15 = loc3 + mov b7 = r14 + mov b6 = loc2 + mov r8 = loc1 + mov r14 = in0 + br.ret.sptk b7 + ;; +2: + mov ar.pfs = r14 + br.sptk b6 + ;; +END(_mcount) + +WEAK_ALIAS(mcount, _mcount) |
