From: Mark Corbin <m...@dibsco.co.uk> Introduced definitions for the RISC-V system call interface, including the 'target_pt_regs' structure that outlines the register storage layout during a system call. Added constants for hardware machine identifiers.
Signed-off-by: Mark Corbin <m...@dibsco.co.uk> Signed-off-by: Ajeet Singh <itac...@freebsd.org> Co-authored-by: Jessica Clarke <jrt...@jrtc27.com> Reviewed-by: Richard Henderson <richard.hender...@linaro.org> Message-ID: <20240916155119.14610-12-itac...@freebsd.org> Signed-off-by: Alistair Francis <alistair.fran...@wdc.com> --- bsd-user/riscv/target_syscall.h | 38 +++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 bsd-user/riscv/target_syscall.h diff --git a/bsd-user/riscv/target_syscall.h b/bsd-user/riscv/target_syscall.h new file mode 100644 index 0000000000..e7e5231309 --- /dev/null +++ b/bsd-user/riscv/target_syscall.h @@ -0,0 +1,38 @@ +/* + * RISC-V system call definitions + * + * Copyright (c) Mark Corbin + * + * 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 BSD_USER_RISCV_TARGET_SYSCALL_H +#define BSD_USER_RISCV_TARGET_SYSCALL_H + +/* + * struct target_pt_regs defines the way the registers are stored on the stack + * during a system call. + */ + +struct target_pt_regs { + abi_ulong regs[32]; + abi_ulong sepc; +}; + +#define UNAME_MACHINE "riscv64" + +#define TARGET_HW_MACHINE "riscv" +#define TARGET_HW_MACHINE_ARCH UNAME_MACHINE + +#endif /* BSD_USER_RISCV_TARGET_SYSCALL_H */ -- 2.46.2
