This was introduced by commit e4ffd066ff440a57097e9140fa9e16ceef905de8.
Assuming the first word of $(CC) is the actual compiler breaks usage like CC="ccache gcc": the script ends up calling ccache directly with gcc arguments, what fails. Instead of getting the first word, just remove from $(CC) any word that starts with a "-". This maintains the spirit of the original patch, while not breaking ccache users.
Signed-off-by: Antonio Terceiro antonio.terceiro@linaro.org Cc: Peter Zijlstra peterz@infradead.org Cc: Ingo Molnar mingo@redhat.com Cc: Arnaldo Carvalho de Melo acme@kernel.org Cc: Mark Rutland mark.rutland@arm.com Cc: Alexander Shishkin alexander.shishkin@linux.intel.com Cc: Jiri Olsa jolsa@redhat.com Cc: Namhyung Kim namhyung@kernel.org Cc: He Zhe zhe.he@windriver.com CC: stable@vger.kernel.org --- 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 5345ac70cd83..9bfc725db608 100644 --- a/tools/perf/Makefile.perf +++ b/tools/perf/Makefile.perf @@ -607,7 +607,7 @@ 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)' $(firstword $(CC)) $(arch_errno_hdr_dir) > $@ + $(Q)$(SHELL) '$(arch_errno_tbl)' '$(patsubst -%,,$(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