diff --git a/arch/x86/um/shared/sysdep/ptrace_32.h b/arch/x86/um/shared/sysdep/ptrace_32.h
index befd1df..b94a108 100644
--- a/arch/x86/um/shared/sysdep/ptrace_32.h
+++ b/arch/x86/um/shared/sysdep/ptrace_32.h
@@ -6,11 +6,7 @@
 #ifndef __SYSDEP_I386_PTRACE_H
 #define __SYSDEP_I386_PTRACE_H
 
-#include <generated/user_constants.h>
-#include "sysdep/faultinfo.h"
-
-#define MAX_REG_NR (UM_FRAME_SIZE / sizeof(unsigned long))
-#define MAX_REG_OFFSET (UM_FRAME_SIZE)
+#define MAX_FP_NR HOST_FPX_SIZE
 
 static inline void update_debugregs(int seq) {}
 
@@ -24,90 +20,16 @@
 int get_using_sysemu(void);
 extern int sysemu_supported;
 
-#define REGS_IP(r) ((r)[HOST_IP])
-#define REGS_SP(r) ((r)[HOST_SP])
-#define REGS_EFLAGS(r) ((r)[HOST_EFLAGS])
-#define REGS_EAX(r) ((r)[HOST_AX])
-#define REGS_EBX(r) ((r)[HOST_BX])
-#define REGS_ECX(r) ((r)[HOST_CX])
-#define REGS_EDX(r) ((r)[HOST_DX])
-#define REGS_ESI(r) ((r)[HOST_SI])
-#define REGS_EDI(r) ((r)[HOST_DI])
-#define REGS_EBP(r) ((r)[HOST_BP])
-#define REGS_CS(r) ((r)[HOST_CS])
-#define REGS_SS(r) ((r)[HOST_SS])
-#define REGS_DS(r) ((r)[HOST_DS])
-#define REGS_ES(r) ((r)[HOST_ES])
-#define REGS_FS(r) ((r)[HOST_FS])
-#define REGS_GS(r) ((r)[HOST_GS])
-
-#define REGS_SET_SYSCALL_RETURN(r, res) REGS_EAX(r) = (res)
-
-#define IP_RESTART_SYSCALL(ip) ((ip) -= 2)
-#define REGS_RESTART_SYSCALL(r) IP_RESTART_SYSCALL(REGS_IP(r))
-
 #ifndef PTRACE_SYSEMU_SINGLESTEP
 #define PTRACE_SYSEMU_SINGLESTEP 32
 #endif
 
-struct uml_pt_regs {
-	unsigned long gp[MAX_REG_NR];
-	unsigned long fp[HOST_FPX_SIZE];
-	struct faultinfo faultinfo;
-	long syscall;
-	int is_user;
-};
-
-#define EMPTY_UML_PT_REGS { }
-
-#define UPT_IP(r) REGS_IP((r)->gp)
-#define UPT_SP(r) REGS_SP((r)->gp)
-#define UPT_EFLAGS(r) REGS_EFLAGS((r)->gp)
-#define UPT_EAX(r) REGS_EAX((r)->gp)
-#define UPT_EBX(r) REGS_EBX((r)->gp)
-#define UPT_ECX(r) REGS_ECX((r)->gp)
-#define UPT_EDX(r) REGS_EDX((r)->gp)
-#define UPT_ESI(r) REGS_ESI((r)->gp)
-#define UPT_EDI(r) REGS_EDI((r)->gp)
-#define UPT_EBP(r) REGS_EBP((r)->gp)
-#define UPT_ORIG_EAX(r) ((r)->syscall)
-#define UPT_CS(r) REGS_CS((r)->gp)
-#define UPT_SS(r) REGS_SS((r)->gp)
-#define UPT_DS(r) REGS_DS((r)->gp)
-#define UPT_ES(r) REGS_ES((r)->gp)
-#define UPT_FS(r) REGS_FS((r)->gp)
-#define UPT_GS(r) REGS_GS((r)->gp)
-
-#define UPT_SYSCALL_ARG1(r) UPT_EBX(r)
-#define UPT_SYSCALL_ARG2(r) UPT_ECX(r)
-#define UPT_SYSCALL_ARG3(r) UPT_EDX(r)
-#define UPT_SYSCALL_ARG4(r) UPT_ESI(r)
-#define UPT_SYSCALL_ARG5(r) UPT_EDI(r)
-#define UPT_SYSCALL_ARG6(r) UPT_EBP(r)
-
-extern int user_context(unsigned long sp);
-
-#define UPT_IS_USER(r) ((r)->is_user)
-
-struct syscall_args {
-	unsigned long args[6];
-};
-
-#define SYSCALL_ARGS(r) ((struct syscall_args) \
-			 { .args = { UPT_SYSCALL_ARG1(r),	\
-				     UPT_SYSCALL_ARG2(r),	\
-				     UPT_SYSCALL_ARG3(r),	\
-				     UPT_SYSCALL_ARG4(r),	\
-				     UPT_SYSCALL_ARG5(r),	\
-				     UPT_SYSCALL_ARG6(r) } } )
-
-#define UPT_RESTART_SYSCALL(r) REGS_RESTART_SYSCALL((r)->gp)
-
-#define UPT_ORIG_SYSCALL(r) UPT_EAX(r)
-#define UPT_SYSCALL_NR(r) UPT_ORIG_EAX(r)
-#define UPT_SYSCALL_RET(r) UPT_EAX(r)
-
-#define UPT_FAULTINFO(r) (&(r)->faultinfo)
+#define UPT_SYSCALL_ARG1(r) UPT_BX(r)
+#define UPT_SYSCALL_ARG2(r) UPT_CX(r)
+#define UPT_SYSCALL_ARG3(r) UPT_DX(r)
+#define UPT_SYSCALL_ARG4(r) UPT_SI(r)
+#define UPT_SYSCALL_ARG5(r) UPT_DI(r)
+#define UPT_SYSCALL_ARG6(r) UPT_BP(r)
 
 extern void arch_init_registers(int pid);