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bsd-user/arm/target_arch_vmparam.h: Parameters for arm address space

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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: Kyle Evans <kevans@FreeBSD.org>
Signed-off-by: Warner Losh <imp@bsdimp.com>
Reviewed-by: Kyle Evans <kevans@FreeBSD.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
This commit is contained in:
Warner Losh 2021-09-23 09:12:12 -06:00
parent bcacf30808
commit dacfdf3ba4
1 changed files with 48 additions and 0 deletions
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bsd-user/arm/target_arch_vmparam.h Normal file
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/*
* 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_ */