diff options
| author | Greentime Hu <greentime@andestech.com> | 2017-10-25 11:16:56 +0800 |
|---|---|---|
| committer | Greentime Hu <greentime@andestech.com> | 2018-02-22 10:44:33 +0800 |
| commit | eefacd1dfe38a3334d2e1c44fee0d7b0fdd5d252 (patch) | |
| tree | ecc49e54c9a797a7f402c39da9a2d7f25cd1c104 /arch/nds32/kernel/vdso/gen_vdso_offsets.sh | |
| parent | 1932fbe36e02f54223ac4c6779b92269ca8b9b60 (diff) | |
| download | talos-op-linux-eefacd1dfe38a3334d2e1c44fee0d7b0fdd5d252.tar.gz talos-op-linux-eefacd1dfe38a3334d2e1c44fee0d7b0fdd5d252.zip | |
nds32: VDSO support
This patch adds VDSO support. The VDSO code is currently used for
sys_rt_sigreturn() and optimised gettimeofday() (using the SoC timer counter).
Signed-off-by: Vincent Chen <vincentc@andestech.com>
Signed-off-by: Greentime Hu <greentime@andestech.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'arch/nds32/kernel/vdso/gen_vdso_offsets.sh')
| -rwxr-xr-x | arch/nds32/kernel/vdso/gen_vdso_offsets.sh | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/arch/nds32/kernel/vdso/gen_vdso_offsets.sh b/arch/nds32/kernel/vdso/gen_vdso_offsets.sh new file mode 100755 index 000000000000..01924ff071ad --- /dev/null +++ b/arch/nds32/kernel/vdso/gen_vdso_offsets.sh @@ -0,0 +1,15 @@ +#!/bin/sh + +# +# Match symbols in the DSO that look like VDSO_*; produce a header file +# of constant offsets into the shared object. +# +# Doing this inside the Makefile will break the $(filter-out) function, +# causing Kbuild to rebuild the vdso-offsets header file every time. +# +# Author: Will Deacon <will.deacon@arm.com +# + +LC_ALL=C +sed -n -e 's/^00*/0/' -e \ +'s/^\([0-9a-fA-F]*\) . VDSO_\([a-zA-Z0-9_]*\)$/\#define vdso_offset_\2\t0x\1/p' |
