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Commit 267aed9d authored by David Howells's avatar David Howells
Browse files

UAPI: elf_read_implies_exec() is a kernel-only feature - so hide from userspace 



elf_read_implies_exec() is a kernel-only feature as the second parameter is a
constant that isn't exported to userspace.  Not only that, but the
arch-specific overrides are not exported either.

So hide the macro from userspace.

Similarly, struct file should not be predeclared in userspace.

Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
parent 070712c6

include/linux/elf.h

+9 −9
Original line number Original line Diff line number Diff line
@@ -7,15 +7,6 @@ 
#include <asm/elf.h>

#include <asm/elf.h>

#endif

#endif





struct file;



#ifndef elf_read_implies_exec

  /* Executables for which elf_read_implies_exec() returns TRUE will

     have the READ_IMPLIES_EXEC personality flag set automatically.

     Override in asm/elf.h as needed.  */

# define elf_read_implies_exec(ex, have_pt_gnu_stack)	0

#endif



/* 32-bit ELF base types. */

/* 32-bit ELF base types. */

typedef __u32	Elf32_Addr;

typedef __u32	Elf32_Addr;

typedef __u16	Elf32_Half;

typedef __u16	Elf32_Half;
@@ -414,6 +405,13 @@ typedef struct elf64_note { 
} Elf64_Nhdr;

} Elf64_Nhdr;





#ifdef __KERNEL__

#ifdef __KERNEL__

#ifndef elf_read_implies_exec

  /* Executables for which elf_read_implies_exec() returns TRUE will

     have the READ_IMPLIES_EXEC personality flag set automatically.

     Override in asm/elf.h as needed.  */

# define elf_read_implies_exec(ex, have_pt_gnu_stack)	0

#endif



#if ELF_CLASS == ELFCLASS32

#if ELF_CLASS == ELFCLASS32





extern Elf32_Dyn _DYNAMIC [];

extern Elf32_Dyn _DYNAMIC [];
@@ -437,6 +435,8 @@ extern Elf64_Dyn _DYNAMIC []; 
#endif

#endif





/* Optional callbacks to write extra ELF notes. */

/* Optional callbacks to write extra ELF notes. */

struct file;



#ifndef ARCH_HAVE_EXTRA_ELF_NOTES

#ifndef ARCH_HAVE_EXTRA_ELF_NOTES

static inline int elf_coredump_extra_notes_size(void) { return 0; }

static inline int elf_coredump_extra_notes_size(void) { return 0; }

static inline int elf_coredump_extra_notes_write(struct file *file,

static inline int elf_coredump_extra_notes_write(struct file *file,