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Re: [PATCH 11/24] bsd-user/arm/target_arch_vmparam.h: Parameters for arm
From: |
Kyle Evans |
Subject: |
Re: [PATCH 11/24] bsd-user/arm/target_arch_vmparam.h: Parameters for arm address space |
Date: |
Tue, 26 Oct 2021 00:52:15 -0500 |
On Tue, Oct 19, 2021 at 11:45 AM Warner Losh <imp@bsdimp.com> wrote:
>
> Various parameters describing the layout of the ARM address space. In
> addition, define routines to get the stack pointer and to set the second
> return value.
>
> Signed-off-by: Stacey Son <sson@FreeBSD.org>
> Signed-off-by: Klye Evans <kevans@FreeBSD.org>
> Signed-off-by: Warner Losh <imp@bsdimp.com>
> ---
> bsd-user/arm/target_arch_vmparam.h | 48 ++++++++++++++++++++++++++++++
> 1 file changed, 48 insertions(+)
> create mode 100644 bsd-user/arm/target_arch_vmparam.h
>
> diff --git a/bsd-user/arm/target_arch_vmparam.h
> b/bsd-user/arm/target_arch_vmparam.h
> new file mode 100644
> index 0000000000..4bbc04ddf5
> --- /dev/null
> +++ b/bsd-user/arm/target_arch_vmparam.h
> @@ -0,0 +1,48 @@
> +/*
> + * arm VM parameters definitions
> + *
> + * Copyright (c) 2013 Stacey D. Son
> + *
> + * 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 2 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/>.
> + */
> +#ifndef _TARGET_ARCH_VMPARAM_H_
> +#define _TARGET_ARCH_VMPARAM_H_
> +
> +#include "cpu.h"
> +
> +/* compare to sys/arm/include/vmparam.h */
> +#define TARGET_MAXTSIZ (64 * MiB) /* max text size */
> +#define TARGET_DFLDSIZ (128 * MiB) /* initial data size limit
> */
> +#define TARGET_MAXDSIZ (512 * MiB) /* max data size */
> +#define TARGET_DFLSSIZ (4 * MiB) /* initial stack size limit
> */
> +#define TARGET_MAXSSIZ (64 * MiB) /* max stack size */
> +#define TARGET_SGROWSIZ (128 * KiB) /* amount to grow stack */
> +
> +#define TARGET_RESERVED_VA 0xf7000000
> +
> + /* KERNBASE - 512 MB */
> +#define TARGET_VM_MAXUSER_ADDRESS (0xc0000000 - (512 * MiB))
> +#define TARGET_USRSTACK TARGET_VM_MAXUSER_ADDRESS
> +
> +static inline abi_ulong get_sp_from_cpustate(CPUARMState *state)
> +{
> + return state->regs[13]; /* sp */
> +}
> +
> +static inline void set_second_rval(CPUARMState *state, abi_ulong retval2)
> +{
> + state->regs[1] = retval2;
> +}
> +
> +#endif /* ! _TARGET_ARCH_VMPARAM_H_ */
> --
> 2.32.0
>
Reviewed-by: Kyle Evans <kevans@FreeBSD.org>
- Re: [PATCH 13/24] bsd-user/arm/target_arch_thread.h: Routines to create and switch to a thread, (continued)
Re: [PATCH 13/24] bsd-user/arm/target_arch_thread.h: Routines to create and switch to a thread, Richard Henderson, 2021/10/28
[PATCH 09/24] bsd-user/arm/target_arch_cpu.h: Implement system call dispatch, Warner Losh, 2021/10/19
[PATCH 11/24] bsd-user/arm/target_arch_vmparam.h: Parameters for arm address space, Warner Losh, 2021/10/19
[PATCH 12/24] bsd-user/arm/target_arch_sigtramp.h: Signal Trampoline for arm, Warner Losh, 2021/10/19
[PATCH 15/24] bsd-user/arm/target_arch_elf.h: arm get hwcap, Warner Losh, 2021/10/19
[PATCH 17/24] bsd-user/arm/target_arch_signal.h: arm specific signal registers and stack, Warner Losh, 2021/10/19