diff --git a/arch/x86/include/asm/elf.h b/arch/x86/include/asm/elf.h
index 0d157d2a1e2a..973bd7b5b164 100644
--- a/arch/x86/include/asm/elf.h
+++ b/arch/x86/include/asm/elf.h
@@ -10,18 +10,10 @@
 #include <asm/ptrace.h>
 #include <asm/user.h>
 #include <asm/auxvec.h>
-
-typedef unsigned long elf_greg_t;
-
-#define ELF_NGREG (sizeof(struct user_regs_struct) / sizeof(elf_greg_t))
-typedef elf_greg_t elf_gregset_t[ELF_NGREG];
-
-typedef struct user_i387_struct elf_fpregset_t;
+#include <uapi/asm/elf.h>
 
 #ifdef __i386__
 
-typedef struct user_fxsr_struct elf_fpxregset_t;
-
 #define R_386_NONE	0
 #define R_386_32	1
 #define R_386_PC32	2
@@ -35,13 +27,6 @@ typedef struct user_fxsr_struct elf_fpxregset_t;
 #define R_386_GOTPC	10
 #define R_386_NUM	11
 
-/*
- * These are used to set parameters in the core dumps.
- */
-#define ELF_CLASS	ELFCLASS32
-#define ELF_DATA	ELFDATA2LSB
-#define ELF_ARCH	EM_386
-
 #else
 
 /* x86-64 relocation types */
@@ -65,13 +50,6 @@ typedef struct user_fxsr_struct elf_fpxregset_t;
 
 #define R_X86_64_NUM		16
 
-/*
- * These are used to set parameters in the core dumps.
- */
-#define ELF_CLASS	ELFCLASS64
-#define ELF_DATA	ELFDATA2LSB
-#define ELF_ARCH	EM_X86_64
-
 #endif
 
 #include <asm/vdso.h>
diff --git a/arch/x86/include/uapi/asm/elf.h b/arch/x86/include/uapi/asm/elf.h
new file mode 100644
index 000000000000..a640e1224939
--- /dev/null
+++ b/arch/x86/include/uapi/asm/elf.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _UAPI_ASM_X86_ELF_H
+#define _UAPI_ASM_X86_ELF_H
+
+#ifdef __i386__
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS	ELFCLASS32
+#define ELF_DATA	ELFDATA2LSB
+#define ELF_ARCH	EM_386
+#define ELF_NGREG	17
+
+#else
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#define ELF_CLASS	ELFCLASS64
+#define ELF_DATA	ELFDATA2LSB
+#define ELF_ARCH	EM_X86_64
+#define ELF_NGREG	27
+
+#endif /* __i386__ */
+
+typedef unsigned long elf_greg_t;
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+#endif
diff --git a/arch/x86/include/uapi/asm/signal.h b/arch/x86/include/uapi/asm/signal.h
index e5745d593dc7..00f273eaddf7 100644
--- a/arch/x86/include/uapi/asm/signal.h
+++ b/arch/x86/include/uapi/asm/signal.h
@@ -128,7 +128,7 @@ struct sigaction {
 typedef struct sigaltstack {
 	void __user *ss_sp;
 	int ss_flags;
-	size_t ss_size;
+	__kernel_size_t ss_size;
 } stack_t;
 
 #endif /* __ASSEMBLY__ */
diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
index c5358e0ae7c5..e1e4561ed9c2 100644
--- a/include/uapi/linux/elf.h
+++ b/include/uapi/linux/elf.h
@@ -4,6 +4,7 @@
 
 #include <linux/types.h>
 #include <linux/elf-em.h>
+#include <asm/elf.h>
 
 /* 32-bit ELF base types. */
 typedef __u32	Elf32_Addr;
diff --git a/include/uapi/linux/elfcore.h b/include/uapi/linux/elfcore.h
index baf03562306d..9c0078004275 100644
--- a/include/uapi/linux/elfcore.h
+++ b/include/uapi/linux/elfcore.h
@@ -16,15 +16,6 @@ struct elf_siginfo
 	int	si_errno;			/* errno */
 };
 
-
-#ifndef __KERNEL__
-typedef elf_greg_t greg_t;
-typedef elf_gregset_t gregset_t;
-typedef elf_fpregset_t fpregset_t;
-typedef elf_fpxregset_t fpxregset_t;
-#define NGREG ELF_NGREG
-#endif
-
 /*
  * Definitions to generate Intel SVR4-like core files.
  * These mostly have the same names as the SVR4 types with "elf_"
@@ -49,10 +40,10 @@ struct elf_prstatus
 	struct sigaltstack pr_altstack;	/* Alternate stack info */
 	struct sigaction pr_action;	/* Signal action for current sig */
 #endif
-	pid_t	pr_pid;
-	pid_t	pr_ppid;
-	pid_t	pr_pgrp;
-	pid_t	pr_sid;
+	__kernel_pid_t	pr_pid;
+	__kernel_pid_t	pr_ppid;
+	__kernel_pid_t	pr_pgrp;
+	__kernel_pid_t	pr_sid;
 	struct __kernel_old_timeval pr_utime;	/* User time */
 	struct __kernel_old_timeval pr_stime;	/* System time */
 	struct __kernel_old_timeval pr_cutime;	/* Cumulative user time */
@@ -85,17 +76,10 @@ struct elf_prpsinfo
 	unsigned long pr_flag;	/* flags */
 	__kernel_uid_t	pr_uid;
 	__kernel_gid_t	pr_gid;
-	pid_t	pr_pid, pr_ppid, pr_pgrp, pr_sid;
+	__kernel_pid_t	pr_pid, pr_ppid, pr_pgrp, pr_sid;
 	/* Lots missing */
 	char	pr_fname[16];	/* filename of executable */
 	char	pr_psargs[ELF_PRARGSZ];	/* initial part of arg list */
 };
 
-#ifndef __KERNEL__
-typedef struct elf_prstatus prstatus_t;
-typedef struct elf_prpsinfo prpsinfo_t;
-#define PRARGSZ ELF_PRARGSZ 
-#endif
-
-
 #endif /* _UAPI_LINUX_ELFCORE_H */
