linux/arch/arm64/kernel/vdso/gen_vdso_offsets.sh

#!/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'
arm64: VDSO support This patch adds VDSO support for 64-bit applications. The VDSO code is currently used for sys_rt_sigreturn() and optimised gettimeofday() (using the user-accessible generic counter). Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Tony Lindgren <tony@atomide.com> Acked-by: Nicolas Pitre <nico@linaro.org> Acked-by: Olof Johansson <olof@lixom.net> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com> Acked-by: Arnd Bergmann <arnd@arndb.de> 2012-03-05 19:49:31 +08:00			`#!/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'`