mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-12 03:43:33 +08:00
3666a04883
This commits the result of running gdb/copyright.py as per our Start
of New Year procedure...
gdb/ChangeLog
Update copyright year range in copyright header of all GDB files.
88 lines
2.9 KiB
C
88 lines
2.9 KiB
C
/* Common target dependent code for GNU/Linux on PPC systems.
|
|
|
|
Copyright (C) 2018-2021 Free Software Foundation, Inc.
|
|
|
|
This file is part of GDB.
|
|
|
|
This program is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 3 of the License, or
|
|
(at your option) any later version.
|
|
|
|
This program 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with this program. If not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#include "gdbsupport/common-defs.h"
|
|
#include "arch/ppc-linux-common.h"
|
|
#include "arch/ppc-linux-tdesc.h"
|
|
|
|
/* Decimal Floating Point bit in AT_HWCAP.
|
|
|
|
This file can be used by a host with another architecture, e.g.
|
|
when debugging core files, which might not provide this constant. */
|
|
|
|
#ifndef PPC_FEATURE_HAS_DFP
|
|
#define PPC_FEATURE_HAS_DFP 0x00000400
|
|
#endif
|
|
|
|
bool
|
|
ppc_linux_has_isa205 (CORE_ADDR hwcap)
|
|
{
|
|
/* Power ISA 2.05 (implemented by Power 6 and newer processors)
|
|
increases the FPSCR from 32 bits to 64 bits. Even though Power 7
|
|
supports this ISA version, it doesn't have PPC_FEATURE_ARCH_2_05
|
|
set, only PPC_FEATURE_ARCH_2_06. Since for now the only bits
|
|
used in the higher half of the register are for Decimal Floating
|
|
Point, we check if that feature is available to decide the size
|
|
of the FPSCR. */
|
|
return ((hwcap & PPC_FEATURE_HAS_DFP) != 0);
|
|
}
|
|
|
|
const struct target_desc *
|
|
ppc_linux_match_description (struct ppc_linux_features features)
|
|
{
|
|
struct target_desc *tdesc = NULL;
|
|
|
|
if (features.wordsize == 8)
|
|
{
|
|
if (features.vsx)
|
|
tdesc = (features.htm? tdesc_powerpc_isa207_htm_vsx64l
|
|
: features.isa207? tdesc_powerpc_isa207_vsx64l
|
|
: features.ppr_dscr? tdesc_powerpc_isa205_ppr_dscr_vsx64l
|
|
: features.isa205? tdesc_powerpc_isa205_vsx64l
|
|
: tdesc_powerpc_vsx64l);
|
|
else if (features.altivec)
|
|
tdesc = (features.isa205? tdesc_powerpc_isa205_altivec64l
|
|
: tdesc_powerpc_altivec64l);
|
|
else
|
|
tdesc = (features.isa205? tdesc_powerpc_isa205_64l
|
|
: tdesc_powerpc_64l);
|
|
}
|
|
else
|
|
{
|
|
gdb_assert (features.wordsize == 4);
|
|
|
|
if (features.vsx)
|
|
tdesc = (features.htm? tdesc_powerpc_isa207_htm_vsx32l
|
|
: features.isa207? tdesc_powerpc_isa207_vsx32l
|
|
: features.ppr_dscr? tdesc_powerpc_isa205_ppr_dscr_vsx32l
|
|
: features.isa205? tdesc_powerpc_isa205_vsx32l
|
|
: tdesc_powerpc_vsx32l);
|
|
else if (features.altivec)
|
|
tdesc = (features.isa205? tdesc_powerpc_isa205_altivec32l
|
|
: tdesc_powerpc_altivec32l);
|
|
else
|
|
tdesc = (features.isa205? tdesc_powerpc_isa205_32l
|
|
: tdesc_powerpc_32l);
|
|
}
|
|
|
|
gdb_assert (tdesc != NULL);
|
|
|
|
return tdesc;
|
|
}
|