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| author |  Vincenzo Frascino <vincenzo.frascino@arm.com>
| 2019-11-04 11:59:59 +0100 |
|---|---|---|
| committer |  Russell King <rmk+kernel@armlinux.org.uk>
| 2019-11-15 22:21:12 +0000 |
| commit | 20e2fc42312f960f497ac2d617e3742754e1fa5e (patch) | |
| tree | ab9fbc9045b6a56f735821d0da0280b1faaf6f04 /arch/arm/mm | |
| parent | ARM: 8929/1: use APSR_nzcv instead of r15 as mrc operand (diff) | |
| download | linux-20e2fc42312f960f497ac2d617e3742754e1fa5e.tar.gz linux-20e2fc42312f960f497ac2d617e3742754e1fa5e.tar.bz2 linux-20e2fc42312f960f497ac2d617e3742754e1fa5e.zip | |
ARM: 8930/1: Add support for generic vDSO
The arm vDSO library requires some adaptations to take advantage of
the newly introduced generic vDSO library.
Introduce the following changes:
- Modification vdso.c to be compliant with the common vdso datapage
- Use of lib/vdso for gettimeofday
- Implementation of elf note
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>
Diffstat (limited to 'arch/arm/mm')
| -rw-r--r-- | arch/arm/mm/Kconfig | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/arm/mm/Kconfig b/arch/arm/mm/Kconfig index 0ab3a86b1f52..f112dde735de 100644 --- a/arch/arm/mm/Kconfig +++ b/arch/arm/mm/Kconfig @@ -896,7 +896,10 @@ config VDSO bool "Enable VDSO for acceleration of some system calls" depends on AEABI && MMU && CPU_V7 default y if ARM_ARCH_TIMER + select HAVE_GENERIC_VDSO select GENERIC_TIME_VSYSCALL + select GENERIC_VDSO_32 + select GENERIC_GETTIMEOFDAY help Place in the process address space an ELF shared object providing fast implementations of gettimeofday and |