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f3cb097ad8
BSD sed ignores whitespace character escape sequences such as '\t' in the replacement string, causing this script to produce the following incorrect output: #define vdso_offset_sigtrampt0x089c Changing the hard tab to ' ' causes both BSD and GNU dialects of sed to produce equivalent output. Signed-off-by: John Millikin <john@john-millikin.com> Link: https://lore.kernel.org/r/15147ffb-7e67-b607-266d-f56599ecafd1@john-millikin.com Signed-off-by: Will Deacon <will@kernel.org>
17 lines
473 B
Bash
Executable File
17 lines
473 B
Bash
Executable File
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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#
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# Match symbols in the DSO that look like VDSO_*; produce a header file
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# of constant offsets into the shared object.
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#
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# Doing this inside the Makefile will break the $(filter-out) function,
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# causing Kbuild to rebuild the vdso-offsets header file every time.
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#
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# Author: Will Deacon <will.deacon@arm.com>
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#
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LC_ALL=C
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sed -n -e 's/^00*/0/' -e \
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's/^\([0-9a-fA-F]*\) . VDSO_\([a-zA-Z0-9_]*\)$/\#define vdso_offset_\2 0x\1/p'
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