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Re: [PATCH 6/7] Arm: Use read_description funcs in gdbserver
> diff --git a/gdb/gdbserver/linux-aarch32-tdesc.c b/gdb/gdbserver/linux-aarch32-tdesc.c
> new file mode 100644
> index 0000000000..6f0e8c9aa9
> --- /dev/null
> +++ b/gdb/gdbserver/linux-aarch32-tdesc.c
> @@ -0,0 +1,46 @@
> +/* Copyright (C) 2019 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 "server.h"
> +#include "tdesc.h"
> +#include "arch/aarch32.h"
> +#include <inttypes.h>
> +
> +struct target_desc *tdesc_aarch32;
static
> diff --git a/gdb/gdbserver/linux-arm-tdesc.c b/gdb/gdbserver/linux-arm-tdesc.c
> new file mode 100644
> index 0000000000..fa54e48592
> --- /dev/null
> +++ b/gdb/gdbserver/linux-arm-tdesc.c
> @@ -0,0 +1,62 @@
> +/* Copyright (C) 2019 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 "server.h"
> +#include "tdesc.h"
> +#include "arch/arm.h"
> +#include <inttypes.h>
> +
> +/* All possible Arm target descriptors. */
> +struct target_desc *tdesc_arm_list[ARM_FP_TYPE_INVALID];
static
> +
> +/* See linux-arm-tdesc.h. */
> +
> +const target_desc *
> +arm_linux_read_description (arm_fp_type fp_type)
> +{
> + struct target_desc *tdesc = tdesc_arm_list[fp_type];
> +
> + if (tdesc == nullptr)
> + {
> + tdesc = arm_create_target_description (fp_type);
> +
> + static const char *expedite_regs[] = { "r11", "sp", "pc", 0 };
> + init_target_desc (tdesc, expedite_regs);
> +
> + tdesc_arm_list[fp_type] = tdesc;
> + }
> +
> + return tdesc;
> +}
> +
> +/* See linux-arm-tdesc.h. */
> +
> +arm_fp_type arm_linux_get_tdesc_fp_type (const target_desc *tdesc)
Return type on its own line.
> +{
> + if (tdesc == nullptr)
> + return ARM_FP_TYPE_INVALID;
Can this (tdesc == nullptr) actually happen? If you expect it's not possible,
don't hesitate to use a gdb_assert instead. It helps catch bugs and acts as
some kind of self-documentation of the allowed values.
> +
> + /* Many of the tdesc_arm_list entries may not have been initialised yet. This
> + is ok, because tdesc must be one of the initialised ones. */
> + for (int i = ARM_FP_TYPE_VFPV2; i < ARM_FP_TYPE_INVALID; i++)
Is it intended here that you skip ARM_FP_TYPE_NONE? Why?
Simon