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SubjectRe: [PATCH 2/2] perf: Normalize gcc parameter when generating arch errno table
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Can this be considered for the moment?

Thanks,
Zhe

On 2/14/20 2:21 AM, zhe.he@windriver.com wrote:
> From: He Zhe <zhe.he@windriver.com>
>
> The $(CC) passed to arch_errno_names.sh may include a series of parameters
> along with gcc itself. To avoid overwriting the following parameters of
> arch_errno_names.sh and break the build like below, we just pick up the
> first word of the $(CC).
>
> find: unknown predicate `-m64/arch'
> x86_64-wrs-linux-gcc: warning: '-x c' after last input file has no effect
> x86_64-wrs-linux-gcc: error: unrecognized command line option '-m64/include/uapi/asm-generic/errno.h'
> x86_64-wrs-linux-gcc: fatal error: no input files
>
> Signed-off-by: He Zhe <zhe.he@windriver.com>
> ---
> tools/perf/Makefile.perf | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
> index 3eda9d4..7114c11 100644
> --- a/tools/perf/Makefile.perf
> +++ b/tools/perf/Makefile.perf
> @@ -573,7 +573,7 @@ arch_errno_hdr_dir := $(srctree)/tools
> arch_errno_tbl := $(srctree)/tools/perf/trace/beauty/arch_errno_names.sh
>
> $(arch_errno_name_array): $(arch_errno_tbl)
> - $(Q)$(SHELL) '$(arch_errno_tbl)' $(CC) $(arch_errno_hdr_dir) > $@
> + $(Q)$(SHELL) '$(arch_errno_tbl)' $(firstword $(CC)) $(arch_errno_hdr_dir) > $@
>
> sync_file_range_arrays := $(beauty_outdir)/sync_file_range_arrays.c
> sync_file_range_tbls := $(srctree)/tools/perf/trace/beauty/sync_file_range.sh

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