5fa2a10ba6
Most (all?) targets require stacks to be properly aligned. Rather than a series of ifdefs in bsd-user/signal.h, instead use a manditory #define for all architectures. Signed-off-by: Warner Losh <imp@bsdimp.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
83 lines
2.3 KiB
C
83 lines
2.3 KiB
C
/*
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* ARM AArch64 specific signal definitions for bsd-user
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*
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* Copyright (c) 2015 Stacey D. Son <sson at FreeBSD>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; 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_REG_X0 0
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#define TARGET_REG_X30 30
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#define TARGET_REG_X31 31
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#define TARGET_REG_LR TARGET_REG_X30
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#define TARGET_REG_SP TARGET_REG_X31
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#define TARGET_INSN_SIZE 4 /* arm64 instruction size */
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/* Size of the signal trampolin code. See _sigtramp(). */
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#define TARGET_SZSIGCODE ((abi_ulong)(9 * TARGET_INSN_SIZE))
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/* compare to sys/arm64/include/_limits.h */
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#define TARGET_MINSIGSTKSZ (1024 * 4) /* min sig stack size */
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#define TARGET_SIGSTKSZ (TARGET_MINSIGSTKSZ + 32768) /* recommended size */
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/* struct __mcontext in sys/arm64/include/ucontext.h */
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struct target_gpregs {
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uint64_t gp_x[30];
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uint64_t gp_lr;
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uint64_t gp_sp;
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uint64_t gp_elr;
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uint32_t gp_spsr;
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uint32_t gp_pad;
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};
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struct target_fpregs {
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Int128 fp_q[32];
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uint32_t fp_sr;
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uint32_t fp_cr;
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uint32_t fp_flags;
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uint32_t fp_pad;
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};
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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 0x1
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uint32_t mc_pad;
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uint64_t mc_spare[8];
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};
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typedef struct target__mcontext target_mcontext_t;
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#define TARGET_MCONTEXT_SIZE 880
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#define TARGET_UCONTEXT_SIZE 960
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#include "target_os_ucontext.h"
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struct target_sigframe {
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target_siginfo_t sf_si; /* saved siginfo */
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target_ucontext_t sf_uc; /* saved ucontext */
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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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