mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-16 10:00:12 +00:00
4d87b39422
* sysdeps/alpha/div_libc.h (funcnoplt): New.
* sysdeps/alpha/divl.S, sysdeps/alpha/divq.S: Use it.
* sysdeps/alpha/divqu.S, sysdeps/alpha/reml.S: Likewise.
* sysdeps/alpha/remq.S, sysdeps/alpha/remqu.S: Likewise.
2005-05-28 Richard Henderson <rth@redhat.com>
* elf/elf.h (DT_ALPHA_PLTRO, DT_ALPHA_NUM): New.
* sysdeps/alpha/dl-dtprocnum.h: New file.
* sysdeps/alpha/dl-machine.h (DT_ALPHA): New.
(elf_machine_load_address): Simplify to rely on gprel relocations.
(elf_machine_runtime_setup): Handle DT_ALPHA_PLTRO plt format.
Remove thread safety workaround for binutils 2.6.
(elf_machine_fixup_plt): Handle DT_ALPHA_PLTRO plt format.
* sysdeps/alpha/dl-trampoline.S (_dl_runtime_resolve_new): New.
(_dl_runtime_profile_new): New.
(_dl_runtime_resolve_old): Rename from _dl_runtime_resolve.
(_dl_runtime_profile_old): Rename from _dl_runtime_profile. Fix
typo in _dl_call_pltexit argument loading.
* sysdeps/alpha/div_libc.h (funcnoplt): New.
* sysdeps/alpha/divl.S, sysdeps/alpha/divq.S: Use it.
* sysdeps/alpha/divqu.S, sysdeps/alpha/reml.S: Likewise.
* sysdeps/alpha/remq.S, sysdeps/alpha/remqu.S: Likewise.
85 lines
2.1 KiB
ArmAsm
85 lines
2.1 KiB
ArmAsm
/* Copyright (C) 2004 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, write to the Free
|
|
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
|
|
02111-1307 USA. */
|
|
|
|
#include "div_libc.h"
|
|
|
|
/* 32-bit signed int divide. This is not a normal C function. Argument
|
|
registers are t10 and t11, the result goes in t12. Only t12 and AT may
|
|
be clobbered.
|
|
|
|
The FPU can handle all input values except zero. Whee!
|
|
|
|
The FPCR save/restore is due to the fact that the EV6 _will_ set FPCR_INE
|
|
for cvttq/c even without /sui being set. It will not, however, properly
|
|
raise the exception, so we don't have to worry about FPCR_INED being clear
|
|
and so dying by SIGFPE. */
|
|
|
|
#ifndef EXTEND
|
|
#define EXTEND(S,D) sextl S, D
|
|
#endif
|
|
|
|
.text
|
|
.align 4
|
|
.globl __divl
|
|
.type __divl, @funcnoplt
|
|
.usepv __divl, no
|
|
|
|
cfi_startproc
|
|
cfi_return_column (RA)
|
|
__divl:
|
|
lda sp, -FRAME(sp)
|
|
cfi_def_cfa_offset (FRAME)
|
|
CALL_MCOUNT
|
|
stt $f0, 0(sp)
|
|
excb
|
|
beq Y, DIVBYZERO
|
|
|
|
stt $f1, 8(sp)
|
|
stt $f2, 16(sp)
|
|
cfi_rel_offset ($f0, 0)
|
|
cfi_rel_offset ($f1, 8)
|
|
cfi_rel_offset ($f2, 16)
|
|
mf_fpcr $f2
|
|
|
|
EXTEND (X, RV)
|
|
EXTEND (Y, AT)
|
|
_ITOFT2 RV, $f0, 24, AT, $f1, 32
|
|
cvtqt $f0, $f0
|
|
cvtqt $f1, $f1
|
|
divt/c $f0, $f1, $f0
|
|
cvttq/c $f0, $f0
|
|
excb
|
|
mt_fpcr $f2
|
|
_FTOIT $f0, RV, 24
|
|
|
|
ldt $f0, 0(sp)
|
|
ldt $f1, 8(sp)
|
|
ldt $f2, 16(sp)
|
|
lda sp, FRAME(sp)
|
|
cfi_restore ($f0)
|
|
cfi_restore ($f1)
|
|
cfi_restore ($f2)
|
|
cfi_def_cfa_offset (0)
|
|
sextl RV, RV
|
|
ret $31, (RA), 1
|
|
|
|
cfi_endproc
|
|
.size __divl, .-__divl
|
|
|
|
DO_DIVBYZERO
|