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
