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Wed, 25 Mar 2020 13:05:27 +0000 Subject: Re: [PATCH 2/2] perf: Normalize gcc parameter when generating arch errno table To: peterz@infradead.org, mingo@redhat.com, acme@kernel.org, mark.rutland@arm.com, alexander.shishkin@linux.intel.com, jolsa@redhat.com, namhyung@kernel.org, linux-kernel@vger.kernel.org References: <1581618066-187262-1-git-send-email-zhe.he@windriver.com> <1581618066-187262-2-git-send-email-zhe.he@windriver.com> From: He Zhe Message-ID: <2addb3c4-5b0d-0196-5262-d1983a893896@windriver.com> Date: Wed, 25 Mar 2020 21:05:17 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1 In-Reply-To: <1581618066-187262-2-git-send-email-zhe.he@windriver.com> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Content-Language: en-US X-ClientProxiedBy: HK2PR06CA0013.apcprd06.prod.outlook.com (2603:1096:202:2e::25) To SN6PR11MB3360.namprd11.prod.outlook.com (2603:10b6:805:c8::30) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from [128.224.162.175] (60.247.85.82) by HK2PR06CA0013.apcprd06.prod.outlook.com (2603:1096:202:2e::25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.2835.19 via Frontend Transport; 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Thanks, Zhe On 2/14/20 2:21 AM, zhe.he@windriver.com wrote: > From: He Zhe > > 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 > --- > 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