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Chris Metcalf 4a556f4f56 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>
 		2013-08-13 16:26:21 -04:00
..
vdso tile: implement gettimeofday() via vDSO 2013-08-13 16:26:21 -04:00
Makefile tile: implement gettimeofday() via vDSO 2013-08-13 16:26:21 -04:00
asm-offsets.c tile: support CONFIG_PREEMPT 2013-08-13 16:26:01 -04:00
backtrace.c arch/tile: big-endian: properly bswap instruction bundles when backtracing 2012-06-18 13:11:21 -04:00
compat.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal 2013-05-01 07:21:43 -07:00
compat_signal.c tile: implement gettimeofday() via vDSO 2013-08-13 16:26:21 -04:00
early_printk.c tile: various console improvements 2013-08-12 14:46:18 -04:00
entry.S tile: implement gettimeofday() via vDSO 2013-08-13 16:26:21 -04:00
futex_64.S arch/tile: finish enabling support for TILE-Gx 64-bit chip 2011-05-12 15:52:12 -04:00
hardwall.c tile: support CONFIG_PREEMPT 2013-08-13 16:26:01 -04:00
head_32.S tile: convert uses of "inv" to "finv" 2013-07-31 11:51:19 -04:00
head_64.S tile: improve big-endian support 2013-08-13 16:26:05 -04:00
hvglue.lds tile: various console improvements 2013-08-12 14:46:18 -04:00
intvec_32.S tile: support CONFIG_PREEMPT 2013-08-13 16:26:01 -04:00
intvec_64.S tile: improve illegal translation interrupt handling 2013-08-13 16:26:13 -04:00
irq.c tile: support CONFIG_PREEMPT 2013-08-13 16:26:01 -04:00
machine_kexec.c arch/tile: support kexec() for tilegx 2012-05-25 12:48:25 -04:00
messaging.c arch/tile: bomb raw_local_irq_ to arch_local_irq_ 2010-11-01 15:30:42 -04:00
module.c modules: don't hand 0 to vmalloc. 2012-12-14 13:06:43 +10:30
pci-dma.c tile PCI DMA: fix bug in non-page-aligned accessors 2013-08-06 12:56:04 -04:00
pci.c tile PCI RC: support pci=off boot arg for tilepro 2013-08-05 16:12:57 -04:00
pci_gx.c tile PCI RC: reduce driver's vmalloc space usage 2013-08-06 12:56:12 -04:00
proc.c tile: fast-path unaligned memory access for tilegx 2013-08-13 16:04:10 -04:00
process.c tile: make register dumps more readable 2013-08-13 16:26:09 -04:00
ptrace.c tile: fast-path unaligned memory access for tilegx 2013-08-13 16:04:10 -04:00
reboot.c tile: various console improvements 2013-08-12 14:46:18 -04:00
regs_32.S Disintegrate asm/system.h for Tile 2012-03-28 18:30:03 +01:00
regs_64.S Disintegrate asm/system.h for Tile 2012-03-28 18:30:03 +01:00
relocate_kernel_32.S arch/tile: support kexec() for tilegx 2012-05-25 12:48:25 -04:00
relocate_kernel_64.S arch/tile: support kexec() for tilegx 2012-05-25 12:48:25 -04:00
setup.c tile: support "memmap" boot parameter 2013-08-12 14:46:43 -04:00
signal.c tile: implement gettimeofday() via vDSO 2013-08-13 16:26:21 -04:00
single_step.c tile: fast-path unaligned memory access for tilegx 2013-08-13 16:04:10 -04:00
smp.c tile: support CONFIG_PREEMPT 2013-08-13 16:26:01 -04:00
smpboot.c tile: support CONFIG_PREEMPT 2013-08-13 16:26:01 -04:00
stack.c tile: implement gettimeofday() via vDSO 2013-08-13 16:26:21 -04:00
sys.c tile: support CONFIG_PREEMPT 2013-08-13 16:26:01 -04:00
sysfs.c arch/tile: allow querying cpu module information from the hypervisor 2012-05-25 12:48:28 -04:00
tile-desc_32.c arch/tile: factor out <arch/opcode.h> header 2011-11-03 16:58:54 -04:00
tile-desc_64.c arch/tile: factor out <arch/opcode.h> header 2011-11-03 16:58:54 -04:00
time.c tile: implement gettimeofday() via vDSO 2013-08-13 16:26:21 -04:00
tlb.c arch/tile: support multiple huge page sizes dynamically 2012-05-25 12:48:27 -04:00
traps.c tile: improve illegal translation interrupt handling 2013-08-13 16:26:13 -04:00
unaligned.c tile: fast-path unaligned memory access for tilegx 2013-08-13 16:04:10 -04:00
usb.c usb: add host support for the tilegx architecture 2012-07-18 16:40:29 -04:00
vdso.c tile: implement gettimeofday() via vDSO 2013-08-13 16:26:21 -04:00
vmlinux.lds.S tile: normalize global variables exported by vmlinux.lds 2013-07-03 16:07:34 -07:00