[linux-yocto] [linux-yocto/linux-yocto-dev 4.18][PATCH] perf arm64: Fix generate system call table failed with /tmp mounted with noexec
Bruce Ashfield
bruce.ashfield at windriver.com
Thu Oct 18 05:44:11 PDT 2018
On 10/18/18 5:12 AM, Hongxu Jia wrote:
> Which /tmp mounted with noexec, generate system call table failed.
> [snip]
> |perf-1.0/tools/perf/arch/arm64/entry/syscalls//mksyscalltbl:
> /tmp/create-table-6VGPSt: Permission denied
> [snip]
>
> Add variable TMPDIR as prefix dir of the temporary file, if it is set,
> replace default /tmp
>
> Fixes: 2b5882435606 ("perf arm64: Generate system call table from asm/unistd.h")
Looks good. Have you also sent this upstream ?
Bruce
>
> Signed-off-by: Hongxu Jia <hongxu.jia at windriver.com>
> ---
> tools/perf/arch/arm64/entry/syscalls/mksyscalltbl | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl b/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl
> index 2dbb8cad..c88fd32 100755
> --- a/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl
> +++ b/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl
> @@ -23,7 +23,7 @@ create_table_from_c()
> {
> local sc nr last_sc
>
> - create_table_exe=`mktemp /tmp/create-table-XXXXXX`
> + create_table_exe=`mktemp ${TMPDIR:-/tmp}/create-table-XXXXXX`
>
> {
>
>
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