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>
92 lines
2.6 KiB
C
92 lines
2.6 KiB
C
/*
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* arm signal definitions
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*
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* Copyright (c) 2013 Stacey D. Son
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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_REG_R0 0
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#define TARGET_REG_R1 1
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#define TARGET_REG_R2 2
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#define TARGET_REG_R3 3
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#define TARGET_REG_R4 4
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#define TARGET_REG_R5 5
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#define TARGET_REG_R6 6
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#define TARGET_REG_R7 7
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#define TARGET_REG_R8 8
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#define TARGET_REG_R9 9
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#define TARGET_REG_R10 10
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#define TARGET_REG_R11 11
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#define TARGET_REG_R12 12
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#define TARGET_REG_R13 13
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#define TARGET_REG_R14 14
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#define TARGET_REG_R15 15
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#define TARGET_REG_CPSR 16
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#define TARGET__NGREG 17
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/* Convenience synonyms */
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#define TARGET_REG_FP TARGET_REG_R11
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#define TARGET_REG_SP TARGET_REG_R13
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#define TARGET_REG_LR TARGET_REG_R14
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#define TARGET_REG_PC TARGET_REG_R15
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#define TARGET_INSN_SIZE 4 /* arm 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 arm/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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/*
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* Floating point register state
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*/
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typedef struct target_mcontext_vfp {
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abi_ullong mcv_reg[32];
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abi_ulong mcv_fpscr;
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} target_mcontext_vfp_t;
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typedef struct target_mcontext {
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abi_uint __gregs[TARGET__NGREG];
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/*
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* Originally, rest of this structure was named __fpu, 35 * 4 bytes
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* long, never accessed from kernel.
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*/
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abi_ulong mc_vfp_size;
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abi_ptr mc_vfp_ptr;
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abi_int mc_spare[33];
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} target_mcontext_t;
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#define TARGET_MCONTEXT_SIZE 208
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#define TARGET_UCONTEXT_SIZE 260
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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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target_mcontext_vfp_t sf_vfp; /* actual saved VFP context */
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};
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#define TARGET_SIGSTACK_ALIGN 8
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#endif /* TARGET_ARCH_SIGNAL_H */
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