linux-kernel - [PATCH 0/2] x86/vdso: Remove remnants of the fake section table

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Date:   Tue,  4 Dec 2018 08:17:39 -0800
From:   Sean Christopherson <sean.j.christopherson@...el.com>
To:     Andy Lutomirski <luto@...nel.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        x86@...nel.org
Cc:     "H. Peter Anvin" <hpa@...or.com>, linux-kernel@...r.kernel.org,
        Andy Lutomirski <luto@...capital.net>
Subject: [PATCH 0/2] x86/vdso: Remove remnants of the fake section table

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.

Sean Christopherson (2):
  x86/vdso: Remove obsolete "fake section table" reservation
  x86/vdso: Remove a stale/misleading comment from the linker script

 arch/x86/entry/vdso/vdso-layout.lds.S | 27 ---------------------------
 arch/x86/entry/vdso/vdso2c.c          |  6 ------
 2 files changed, 33 deletions(-)

-- 
2.19.2