07e2671120
Added definitions for RISC-V signal handling, including structures and constants for managing signal frames and context Signed-off-by: Mark Corbin <mark@dibsco.co.uk> Signed-off-by: Ajeet Singh <itachis@FreeBSD.org> Co-authored-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-ID: <20240916155119.14610-14-itachis@FreeBSD.org> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
76 lines
2.1 KiB
C
76 lines
2.1 KiB
C
/*
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* RISC-V signal definitions
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*
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* Copyright (c) 2019 Mark Corbin
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef TARGET_ARCH_SIGNAL_H
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#define TARGET_ARCH_SIGNAL_H
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#include "cpu.h"
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#define TARGET_INSN_SIZE 4 /* riscv instruction size */
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/* Size of the signal trampoline code placed on the stack. */
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#define TARGET_SZSIGCODE ((abi_ulong)(7 * TARGET_INSN_SIZE))
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/* Compare with riscv/include/_limits.h */
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#define TARGET_MINSIGSTKSZ (1024 * 4)
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#define TARGET_SIGSTKSZ (TARGET_MINSIGSTKSZ + 32768)
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struct target_gpregs {
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uint64_t gp_ra;
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uint64_t gp_sp;
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uint64_t gp_gp;
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uint64_t gp_tp;
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uint64_t gp_t[7];
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uint64_t gp_s[12];
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uint64_t gp_a[8];
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uint64_t gp_sepc;
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uint64_t gp_sstatus;
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};
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struct target_fpregs {
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uint64_t fp_x[32][2];
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uint64_t fp_fcsr;
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uint32_t fp_flags;
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uint32_t pad;
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};
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typedef struct target_mcontext {
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struct target_gpregs mc_gpregs;
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struct target_fpregs mc_fpregs;
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uint32_t mc_flags;
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#define TARGET_MC_FP_VALID 0x01
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uint32_t mc_pad;
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uint64_t mc_spare[8];
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} target_mcontext_t;
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#define TARGET_MCONTEXT_SIZE 864
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#define TARGET_UCONTEXT_SIZE 936
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#include "target_os_ucontext.h"
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struct target_sigframe {
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target_ucontext_t sf_uc; /* = *sf_uncontext */
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target_siginfo_t sf_si; /* = *sf_siginfo (SA_SIGINFO case)*/
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};
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#define TARGET_SIGSTACK_ALIGN 16
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#endif /* TARGET_ARCH_SIGNAL_H */
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