82 lines
2.0 KiB
C
82 lines
2.0 KiB
C
/* context.h COPYRIGHT FUJITSU LIMITED 2015-2017 */
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#ifndef __HEADER_ARM64_IHK_CONTEXT_H
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#define __HEADER_ARM64_IHK_CONTEXT_H
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#include <registers.h>
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struct thread_info;
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typedef struct {
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struct thread_info *thread;
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} ihk_mc_kernel_context_t;
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struct user_pt_regs {
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unsigned long regs[31];
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unsigned long sp;
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unsigned long pc;
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unsigned long pstate;
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};
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struct pt_regs {
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union {
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struct user_pt_regs user_regs;
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struct {
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unsigned long regs[31];
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unsigned long sp;
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unsigned long pc;
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unsigned long pstate;
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};
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};
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unsigned long orig_x0;
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unsigned long syscallno;
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};
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typedef struct pt_regs ihk_mc_user_context_t;
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/* @ref.impl arch/arm64/include/asm/ptrace.h */
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#define GET_IP(regs) ((unsigned long)(regs)->pc)
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#define SET_IP(regs, value) ((regs)->pc = ((uint64_t) (value)))
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/* @ref.impl arch/arm64/include/asm/ptrace.h */
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/* AArch32 CPSR bits */
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#define COMPAT_PSR_MODE_MASK 0x0000001f
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/* @ref.impl include/asm-generic/ptrace.h */
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static inline unsigned long instruction_pointer(struct pt_regs *regs)
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{
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return GET_IP(regs);
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}
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/* @ref.impl include/asm-generic/ptrace.h */
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static inline void instruction_pointer_set(struct pt_regs *regs,
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unsigned long val)
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{
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SET_IP(regs, val);
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}
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/* @ref.impl arch/arm64/include/asm/ptrace.h */
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/*
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* Write a register given an architectural register index r.
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* This handles the common case where 31 means XZR, not SP.
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*/
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static inline void pt_regs_write_reg(struct pt_regs *regs, int r,
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unsigned long val)
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{
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if (r != 31)
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regs->regs[r] = val;
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}
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/* temp */
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#define ihk_mc_syscall_arg0(uc) (uc)->regs[0]
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#define ihk_mc_syscall_arg1(uc) (uc)->regs[1]
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#define ihk_mc_syscall_arg2(uc) (uc)->regs[2]
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#define ihk_mc_syscall_arg3(uc) (uc)->regs[3]
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#define ihk_mc_syscall_arg4(uc) (uc)->regs[4]
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#define ihk_mc_syscall_arg5(uc) (uc)->regs[5]
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#define ihk_mc_syscall_ret(uc) (uc)->regs[0]
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#define ihk_mc_syscall_number(uc) (uc)->regs[8]
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#define ihk_mc_syscall_pc(uc) (uc)->pc
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#define ihk_mc_syscall_sp(uc) (uc)->sp
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#endif /* !__HEADER_ARM64_IHK_CONTEXT_H */
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