lkml.org 
[lkml]   [2019]   [Mar]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Date
SubjectRe: [PATCH] perf arm64: Use local headers for target compiler
Em Thu, Mar 21, 2019 at 04:13:53PM +0000, Daniel Thompson escreveu:
> Currently the set of available syscalls is generated from the
> target compilers default <asm-generic/unistd.h>
> (i.e. /usr/include/asm-generic/unistd.h on a self-hosted system).

It shouldn't, Kim?

> The numeric values are then generated by the host compiler using
> tools/include/uapi/asm/unistd.h .
>
> This leads to some nasty version skew problems (including failed perf
> builds if you are running a bleeding edge distro and want to build an
> older version of perf for testing).
>
> Let's make the target compiler use the local headers too.
>
> Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
> ---
> tools/perf/arch/arm64/entry/syscalls/mksyscalltbl | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl b/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl
> index c88fd32563eb..1aca6a839e4f 100755
> --- a/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl
> +++ b/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl
> @@ -56,7 +56,7 @@ create_table()
> echo "};"
> }
>
> -$gcc -E -dM -x c $input \
> - |sed -ne 's/^#define __NR_//p' \
> - |sort -t' ' -k2 -nu \
> +$gcc -I $incpath/include/uapi -E -dM -x c $input \
> + |sed -ne 's/^#define __NR_//p' \
> + |sort -t' ' -k2 -nu \
> |create_table
> --
> 2.20.1

--

- Arnaldo

\
 
 \ /
  Last update: 2019-03-21 17:39    [W:0.030 / U:14.412 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site