LXR linux/arch/x86/vdso/vdso32/vdso32.lds.S

   1/*
   2 * Linker script for 32-bit vDSO.
   3 * We #include the file to define the layout details.
   4 * Here we only choose the prelinked virtual address.
   5 *
   6 * This file defines the version script giving the user-exported symbols in
   7 * the DSO.  We can define local symbols here called VDSO* to make their
   8 * values visible using the asm-x86/vdso.h macros from the kernel proper.
   9 */
  10
  11#define VDSO_PRELINK 0
  12#include "../vdso-layout.lds.S"
  13
  14/* The ELF entry point can be used to set the AT_SYSINFO value.  */
  15ENTRY(__kernel_vsyscall);
  16
  17/*
  18 * This controls what userland symbols we export from the vDSO.
  19 */
  20VERSION
  21{
  22        LINUX_2.5 {
  23        global:
  24                __kernel_vsyscall;
  25                __kernel_sigreturn;
  26                __kernel_rt_sigreturn;
  27        local: *;
  28        };
  29}
  30
  31/*
  32 * Symbols we define here called VDSO* get their values into vdso32-syms.h.
  33 */
  34VDSO32_PRELINK          = VDSO_PRELINK;
  35VDSO32_vsyscall         = __kernel_vsyscall;
  36VDSO32_sigreturn        = __kernel_sigreturn;
  37VDSO32_rt_sigreturn     = __kernel_rt_sigreturn;
  38