kernel_optimize_test/arch/x86/vdso/vdsox32.lds.S
H. Peter Anvin 862ae3132d x32: Drop non-__vdso weak symbols from the x32 VDSO
Drop the legacy weak symbols that don't carry the __vdso prefix from
the x32 VDSO.  This is a new ABI and we don't need to support that
legacy; the actual libc will export the proper symbols.

Suggested-by: Andy Lutomirski <luto@mit.edu>
Link: http://lkml.kernel.org/r/4F42E171.9080005@mit.edu
Cc: H. J. Lu <hjl.tools@gmail.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2012-02-22 20:40:07 -08:00

29 lines
658 B
ArmAsm

/*
* Linker script for x32 vDSO.
* We #include the file to define the layout details.
* Here we only choose the prelinked virtual address.
*
* This file defines the version script giving the user-exported symbols in
* the DSO. We can define local symbols here called VDSO* to make their
* values visible using the asm-x86/vdso.h macros from the kernel proper.
*/
#define VDSO_PRELINK 0
#include "vdso-layout.lds.S"
/*
* This controls what userland symbols we export from the vDSO.
*/
VERSION {
LINUX_2.6 {
global:
__vdso_clock_gettime;
__vdso_gettimeofday;
__vdso_getcpu;
__vdso_time;
local: *;
};
}
VDSOX32_PRELINK = VDSO_PRELINK;