On 6/17/24 11:57, Ajeet Singh wrote:
> From: Stacey Son <sson@FreeBSD.org>
>
> Defined register indices and sizes,introduced structures to represent
> general purpose registers, floating point registers, and machine context
>
> Signed-off-by: Stacey Son <sson@FreeBSD.org>
> Signed-off-by: Warner Losh <imp@bsdimp.com>
> Signed-off-by: Ajeet Singh <itachis@FreeBSD.org>
> Co-authored-by: Warner Losh <imp@bsdimp.com>
> ---
> bsd-user/aarch64/target_arch_signal.h | 80 +++++++++++++++++++++++++++
> 1 file changed, 80 insertions(+)
> create mode 100644 bsd-user/aarch64/target_arch_signal.h
>
> diff --git a/bsd-user/aarch64/target_arch_signal.h b/bsd-user/aarch64/target_arch_signal.h
> new file mode 100644
> index 0000000000..df17173316
> --- /dev/null
> +++ b/bsd-user/aarch64/target_arch_signal.h
> @@ -0,0 +1,80 @@
> +/*
> + * ARM AArch64 specific signal definitions for bsd-user
> + *
> + * Copyright (c) 2015 Stacey D. Son <sson at FreeBSD>
> + *
> + * This 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 of the License, or (at your option) any later version.
> + *
> + * This 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 this library; if not, see <http://www.gnu.org/licenses/>.
> + */
> +
> +#ifndef TARGET_ARCH_SIGNAL_H
> +#define TARGET_ARCH_SIGNAL_H
> +
> +#include "cpu.h"
> +
> +#define TARGET_REG_X0 0
> +#define TARGET_REG_X30 30
> +#define TARGET_REG_X31 31
> +#define TARGET_REG_LR TARGET_REG_X30
> +#define TARGET_REG_SP TARGET_REG_X31
> +
> +#define TARGET_INSN_SIZE 4 /* arm64 instruction size */
> +
> +/* Size of the signal trampolin code. See _sigtramp(). */
> +#define TARGET_SZSIGCODE ((abi_ulong)(9 * TARGET_INSN_SIZE))
> +
> +/* compare to sys/arm64/include/_limits.h */
> +#define TARGET_MINSIGSTKSZ (1024 * 4) /* min sig stack size */
> +#define TARGET_SIGSTKSZ (TARGET_MINSIGSTKSZ + 32768) /* recommended size */
> +
> +/* struct __mcontext in sys/arm64/include/ucontext.h */
> +
> +struct target_gpregs {
> + uint64_t gp_x[30];
> + uint64_t gp_lr;
> + uint64_t gp_sp;
> + uint64_t gp_elr;
> + uint32_t gp_spsr;
> + uint32_t gp_pad;
> +};
> +
> +struct target_fpregs {
> + __uint128_t fp_q[32];
Per patch 6, re not using __uint128_t directly.
r~