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| author | Richard Weinberger <richard@nod.at> | 2011-07-26 04:12:54 +0400 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2011-07-26 07:57:13 +0400 |
| commit | f1c2bb8b9964ed31de988910f8b1cfb586d30091 (patch) | |
| tree | ccf58acd47dbf659dca3087b7ebf2704ffd14aba /arch/um/drivers/cow_sys.h | |
| parent | fc9a00187ba1300a0baae8e613cc62598e1a7de7 (diff) | |
| download | linux-f1c2bb8b9964ed31de988910f8b1cfb586d30091.tar.xz | |
um: implement a x86_64 vDSO
Until now UML had no x86_64 vDSO. So glibc always used the vsyscall page
for gettimeday() and friends. Calls to gettimeday() returned falsely the
host time and confused some programs.
This patch adds a vDSO which turns all __vdso_* calls into a system call
so that UML can trap them.
As glibc still uses the vsyscall page for static binaries this patch
improves the situation only for dynamic binaries.
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/um/drivers/cow_sys.h')
0 files changed, 0 insertions, 0 deletions