115 lines
3.0 KiB
C
115 lines
3.0 KiB
C
/*
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* Copyright (C) 2000 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
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* Licensed under the GPL
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*/
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#ifndef __SYSDEP_I386_PTRACE_H
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#define __SYSDEP_I386_PTRACE_H
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#include <generated/user_constants.h>
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#include "sysdep/faultinfo.h"
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#define MAX_REG_NR (UM_FRAME_SIZE / sizeof(unsigned long))
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#define MAX_REG_OFFSET (UM_FRAME_SIZE)
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static inline void update_debugregs(int seq) {}
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/* syscall emulation path in ptrace */
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#ifndef PTRACE_SYSEMU
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#define PTRACE_SYSEMU 31
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#endif
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void set_using_sysemu(int value);
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int get_using_sysemu(void);
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extern int sysemu_supported;
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#define REGS_IP(r) ((r)[HOST_IP])
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#define REGS_SP(r) ((r)[HOST_SP])
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#define REGS_EFLAGS(r) ((r)[HOST_EFLAGS])
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#define REGS_EAX(r) ((r)[HOST_AX])
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#define REGS_EBX(r) ((r)[HOST_BX])
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#define REGS_ECX(r) ((r)[HOST_CX])
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#define REGS_EDX(r) ((r)[HOST_DX])
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#define REGS_ESI(r) ((r)[HOST_SI])
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#define REGS_EDI(r) ((r)[HOST_DI])
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#define REGS_EBP(r) ((r)[HOST_BP])
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#define REGS_CS(r) ((r)[HOST_CS])
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#define REGS_SS(r) ((r)[HOST_SS])
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#define REGS_DS(r) ((r)[HOST_DS])
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#define REGS_ES(r) ((r)[HOST_ES])
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#define REGS_FS(r) ((r)[HOST_FS])
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#define REGS_GS(r) ((r)[HOST_GS])
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#define REGS_SET_SYSCALL_RETURN(r, res) REGS_EAX(r) = (res)
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#define IP_RESTART_SYSCALL(ip) ((ip) -= 2)
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#define REGS_RESTART_SYSCALL(r) IP_RESTART_SYSCALL(REGS_IP(r))
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#ifndef PTRACE_SYSEMU_SINGLESTEP
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#define PTRACE_SYSEMU_SINGLESTEP 32
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#endif
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struct uml_pt_regs {
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unsigned long gp[MAX_REG_NR];
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unsigned long fp[HOST_FPX_SIZE];
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struct faultinfo faultinfo;
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long syscall;
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int is_user;
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};
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#define EMPTY_UML_PT_REGS { }
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#define UPT_IP(r) REGS_IP((r)->gp)
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#define UPT_SP(r) REGS_SP((r)->gp)
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#define UPT_EFLAGS(r) REGS_EFLAGS((r)->gp)
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#define UPT_EAX(r) REGS_EAX((r)->gp)
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#define UPT_EBX(r) REGS_EBX((r)->gp)
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#define UPT_ECX(r) REGS_ECX((r)->gp)
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#define UPT_EDX(r) REGS_EDX((r)->gp)
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#define UPT_ESI(r) REGS_ESI((r)->gp)
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#define UPT_EDI(r) REGS_EDI((r)->gp)
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#define UPT_EBP(r) REGS_EBP((r)->gp)
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#define UPT_ORIG_EAX(r) ((r)->syscall)
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#define UPT_CS(r) REGS_CS((r)->gp)
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#define UPT_SS(r) REGS_SS((r)->gp)
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#define UPT_DS(r) REGS_DS((r)->gp)
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#define UPT_ES(r) REGS_ES((r)->gp)
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#define UPT_FS(r) REGS_FS((r)->gp)
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#define UPT_GS(r) REGS_GS((r)->gp)
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#define UPT_SYSCALL_ARG1(r) UPT_EBX(r)
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#define UPT_SYSCALL_ARG2(r) UPT_ECX(r)
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#define UPT_SYSCALL_ARG3(r) UPT_EDX(r)
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#define UPT_SYSCALL_ARG4(r) UPT_ESI(r)
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#define UPT_SYSCALL_ARG5(r) UPT_EDI(r)
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#define UPT_SYSCALL_ARG6(r) UPT_EBP(r)
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extern int user_context(unsigned long sp);
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#define UPT_IS_USER(r) ((r)->is_user)
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struct syscall_args {
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unsigned long args[6];
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};
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#define SYSCALL_ARGS(r) ((struct syscall_args) \
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{ .args = { UPT_SYSCALL_ARG1(r), \
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UPT_SYSCALL_ARG2(r), \
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UPT_SYSCALL_ARG3(r), \
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UPT_SYSCALL_ARG4(r), \
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UPT_SYSCALL_ARG5(r), \
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UPT_SYSCALL_ARG6(r) } } )
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#define UPT_RESTART_SYSCALL(r) REGS_RESTART_SYSCALL((r)->gp)
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#define UPT_ORIG_SYSCALL(r) UPT_EAX(r)
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#define UPT_SYSCALL_NR(r) UPT_ORIG_EAX(r)
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#define UPT_SYSCALL_RET(r) UPT_EAX(r)
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#define UPT_FAULTINFO(r) (&(r)->faultinfo)
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extern void arch_init_registers(int pid);
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#endif
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