[PATCH v2 0/4] x86/vdso: Remove remnants of the fake section table

[Sean Christopherson <sean.j.christopherson@intel.com>]

Remove pieces of the vDSO's fake section table mechanism that were left
behind when the vDSO build process reverted to using "objdump -S" to
strip the userspace image.

One of the removed pieces is a 0x340 byte reservation (for 64-bit) in
the .rodata section.  Trimming that fat drops the current image's size
to under 4k, i.e. reduces the effective size of the userspace vDSO
mapping by a full page.

v1->v2:
  - Remove the definition of sym_VDSO_FAKE_SECTION_TABLE_*
  - Add patches 3/4 and 4/4 for additional cleanup

Sean Christopherson (4):
  x86/vdso: Remove obsolete "fake section table" reservation
  x86/vdso: Remove a stale/misleading comment from the linker script
  x86/vdso: Remove struct vdso_sym and its associated export option
  x86/vdso: Rename "required_syms" to "requested_syms"

 arch/x86/entry/vdso/vdso-layout.lds.S | 27 -------------------
 arch/x86/entry/vdso/vdso2c.c          | 37 +++++++++------------------
 arch/x86/entry/vdso/vdso2c.h          | 15 +++++------
 3 files changed, 19 insertions(+), 60 deletions(-)

-- 
2.19.2