Commit 2a0694d15d55d0deed928786a6393d5e45e37d76
Committed by
Linus Torvalds
1 parent
56f1d5d52a
Exists in
master
and in
39 other branches
[PATCH] i386: clean up vDSO alignment padding
This makes the vDSO use nops for all its padding around instructions, rather than sometimes zeros, and nop-pads the end of the area containing instructions to a 32-byte cache line, to keep text and data in separate lines. Signed-off-by: Roland McGrath <roland@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Showing 1 changed file with 2 additions and 1 deletions Side-by-side Diff
arch/i386/kernel/vsyscall-sigreturn.S
... | ... | @@ -15,7 +15,7 @@ |
15 | 15 | */ |
16 | 16 | |
17 | 17 | .text |
18 | - .org __kernel_vsyscall+32 | |
18 | + .org __kernel_vsyscall+32,0x90 | |
19 | 19 | .globl __kernel_sigreturn |
20 | 20 | .type __kernel_sigreturn,@function |
21 | 21 | __kernel_sigreturn: |
... | ... | @@ -35,6 +35,7 @@ |
35 | 35 | int $0x80 |
36 | 36 | .LEND_rt_sigreturn: |
37 | 37 | .size __kernel_rt_sigreturn,.-.LSTART_rt_sigreturn |
38 | + .balign 32 | |
38 | 39 | .previous |
39 | 40 | |
40 | 41 | .section .eh_frame,"a",@progbits |