ce6c541dcb
Added get_ucontext_sigreturn function to check processor state ensuring current execution mode is EL0 and no flags indicating interrupts or exceptions are set. Updated AArch64 code to use CF directly without reading/writing the entire processor state, improving efficiency. Changed FP data structures to use Int128 instead of __uint128_t, leveraging QEMU's generic mechanism for referencing this type. Signed-off-by: Stacey Son <sson@FreeBSD.org> Signed-off-by: Ajeet Singh <itachis@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-Id: <20240707191128.10509-9-itachis@FreeBSD.org> Signed-off-by: Warner Losh <imp@bsdimp.com>
81 lines
2.3 KiB
C
81 lines
2.3 KiB
C
/*
|
|
* 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 {
|
|
Int128 fp_q[32];
|
|
uint32_t fp_sr;
|
|
uint32_t fp_cr;
|
|
uint32_t fp_flags;
|
|
uint32_t fp_pad;
|
|
};
|
|
|
|
struct target__mcontext {
|
|
struct target_gpregs mc_gpregs;
|
|
struct target_fpregs mc_fpregs;
|
|
uint32_t mc_flags;
|
|
#define TARGET_MC_FP_VALID 0x1
|
|
uint32_t mc_pad;
|
|
uint64_t mc_spare[8];
|
|
};
|
|
|
|
typedef struct target__mcontext target_mcontext_t;
|
|
|
|
#define TARGET_MCONTEXT_SIZE 880
|
|
#define TARGET_UCONTEXT_SIZE 960
|
|
|
|
#include "target_os_ucontext.h"
|
|
|
|
struct target_sigframe {
|
|
target_siginfo_t sf_si; /* saved siginfo */
|
|
target_ucontext_t sf_uc; /* saved ucontext */
|
|
};
|
|
|
|
#endif /* TARGET_ARCH_SIGNAL_H */
|