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| author | Chris Metcalf | 2013-08-07 21:33:32 +0200 |
|---|---|---|
| committer | Chris Metcalf | 2013-08-13 22:26:21 +0200 |
| commit | 4a556f4f56da3110b27e265b79f0e7582115445c (patch) | |
| tree | f5af0b865c867160855e4722b49d7e850dddf944 /arch/tile/kernel/Makefile | |
| parent | tile: support simulator notification for ET_DYN objects (diff) | |
| download | kernel-qcow2-linux-4a556f4f56da3110b27e265b79f0e7582115445c.tar.gz kernel-qcow2-linux-4a556f4f56da3110b27e265b79f0e7582115445c.tar.xz kernel-qcow2-linux-4a556f4f56da3110b27e265b79f0e7582115445c.zip | |
tile: implement gettimeofday() via vDSO
This change creates the framework for vDSO calls, makes the existing
rt_sigreturn() mechanism use it, and adds a fast gettimeofday().
Now that we need to expose the vDSO address to userspace, we add
AT_SYSINFO_EHDR to the set of aux entries provided to userspace.
(You can disable any extra vDSO support by booting with vdso=0,
but the rt_sigreturn vDSO page will still be provided.)
Note that glibc has supported the tile vDSO since release 2.17.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch/tile/kernel/Makefile')
| -rw-r--r-- | arch/tile/kernel/Makefile | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/tile/kernel/Makefile b/arch/tile/kernel/Makefile index 6846c4ef5bf1..5157d1c4b4ed 100644 --- a/arch/tile/kernel/Makefile +++ b/arch/tile/kernel/Makefile @@ -6,7 +6,7 @@ extra-y := vmlinux.lds head_$(BITS).o obj-y := backtrace.o entry.o irq.o messaging.o \ pci-dma.o proc.o process.o ptrace.o reboot.o \ setup.o signal.o single_step.o stack.o sys.o \ - sysfs.o time.o traps.o unaligned.o \ + sysfs.o time.o traps.o unaligned.o vdso.o \ intvec_$(BITS).o regs_$(BITS).o tile-desc_$(BITS).o obj-$(CONFIG_HARDWALL) += hardwall.o @@ -21,3 +21,5 @@ else obj-$(CONFIG_PCI) += pci.o endif obj-$(CONFIG_TILE_USB) += usb.o + +obj-y += vdso/ |