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bsd-user/arm/target_arch_reg.h: Implement core dump register copying

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Implement the register copying routines to extract registers from the
cpu for core dump generation.

Signed-off-by: Stacey Son <sson@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 09:10:27 -06:00
parent 8d450c9a30
commit bcacf30808
1 changed files with 60 additions and 0 deletions
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60
bsd-user/arm/target_arch_reg.h Normal file
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/*
* FreeBSD arm register structures
*
* Copyright (c) 2015 Stacey 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_REG_H_
#define _TARGET_ARCH_REG_H_
/* See sys/arm/include/reg.h */
typedef struct target_reg {
uint32_t r[13];
uint32_t r_sp;
uint32_t r_lr;
uint32_t r_pc;
uint32_t r_cpsr;
} target_reg_t;
typedef struct target_fp_reg {
uint32_t fp_exponent;
uint32_t fp_mantissa_hi;
u_int32_t fp_mantissa_lo;
} target_fp_reg_t;
typedef struct target_fpreg {
uint32_t fpr_fpsr;
target_fp_reg_t fpr[8];
} target_fpreg_t;
#define tswapreg(ptr) tswapal(ptr)
static inline void target_copy_regs(target_reg_t *regs, const CPUARMState *env)
{
int i;
for (i = 0; i < 13; i++) {
regs->r[i] = tswapreg(env->regs[i + 1]);
}
regs->r_sp = tswapreg(env->regs[13]);
regs->r_lr = tswapreg(env->regs[14]);
regs->r_pc = tswapreg(env->regs[15]);
regs->r_cpsr = tswapreg(cpsr_read((CPUARMState *)env));
}
#undef tswapreg
#endif /* !_TARGET_ARCH_REG_H_ */