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Mon, 1 Oct 2018 00:40:33 +0000 Received: from CY4PR21MB0776.namprd21.prod.outlook.com ([fe80::54e2:88e0:b622:b36]) by CY4PR21MB0776.namprd21.prod.outlook.com ([fe80::54e2:88e0:b622:b36%5]) with mapi id 15.20.1228.006; Mon, 1 Oct 2018 00:40:33 +0000 From: Sasha Levin To: "stable@vger.kernel.org" , "linux-kernel@vger.kernel.org" CC: Sandipan Das , Jiri Olsa , Ravi Bangoria , Arnaldo Carvalho de Melo , Sasha Levin Subject: [PATCH AUTOSEL 4.9 06/26] perf probe powerpc: Ignore SyS symbols irrespective of endianness Thread-Topic: [PATCH AUTOSEL 4.9 06/26] perf probe powerpc: Ignore SyS symbols irrespective of endianness Thread-Index: AQHUWR9ca3Zt0+ZICkShXfpRvkT/ag== Date: Mon, 1 Oct 2018 00:40:32 +0000 Message-ID: <20181001004026.147201-6-alexander.levin@microsoft.com> References: <20181001004026.147201-1-alexander.levin@microsoft.com> In-Reply-To: <20181001004026.147201-1-alexander.levin@microsoft.com> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [52.168.54.252] x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;CY4PR21MB0120;6:6F0Rx0KD/gX258ffrpnluVEh8oTvslm24kadROSp1O/qmnmYNRf/IblgffwaZ5pvEtPksd8DrpCcOI/l0+ERQwk0DgWeXZOwu9TGNE5y4gK67BofDldt8ex81XZZ9GCwcR9dKt9tT6U90zS90q11XSqLXjAjfmRbETdAHsf97uYVYDw2IKYzGrhDo0pPc0TKiNez57t2aWF87ir1qicL2tjXHv/rs+cXRsJ1sxS95ImXhSC03LodKa14MrpaaKboTCiZnIzqdc4njv1h+J6AtLlyim3a+4JL2Vd3f48fFrY7yD9MimQPesazo1Tv7FPhCqUuDcaMK3KblzyC9NXqU4l94McajBNXycOnjqr5QPb9MvMAqOIT8byQp6LSxU7NCjpIhYbrovWpi3/Ug8nKEKhtYL56X5ktcp9ptQEMs5xFnDaiYJJre9AXhFiOM2sMXUPNd5Jh55yKWonllfcUUA==;5:Gn6CjYKzjlX9Z2zawKuTUY0tHYKVq1qNG8b81+APYrT/IuzkffjYO+yvkIFP1CGsP+rA8GbJcqDzoboVJEgXbQt7jXM1+8BxtqhvmpEUgSWb1sIHd3GNSu07TIT8ld1IDd3G59aPpZYhLFVf0Pk1SwNrkrmRMRBr2THxK87igBk=;7:i1IGVZt1ZOLW9RYoJtKdSlRfQbLxwLA5z/+URWy/EEm3jEMXqUfQM9kugXh+XYCN7rNbWVQG3fHzkNQ9qBGKhXNdd/x3m5XOuUqMpZmyMlcoMZl7aov+TJmx8CBZfuolZsFECJyLZpwkM68fIXpdvWWQFEH6+AJyHfwVNMF/rc2R+biXR4Mlo6tXaWXftbpUdH07fT4HTZG0TpmrRlbfY+I9HJ5eQg4GtsZ1u95pCs+B+W6fXjVy5qmOFws3Peks x-ms-office365-filtering-correlation-id: aec6404f-ae9e-4dad-d062-08d627367ee8 x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0;PCL:0;RULEID:(7020095)(4652040)(8989299)(4534165)(4627221)(201703031133081)(201702281549075)(8990200)(5600074)(711020)(4618075)(2017052603328)(7193020);SRVR:CY4PR21MB0120; 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received-spf: None (protection.outlook.com: microsoft.com does not designate permitted sender hosts) authentication-results: spf=none (sender IP is ) smtp.mailfrom=Alexander.Levin@microsoft.com; x-microsoft-antispam-message-info: jNbOyB4oafFUrnNdVMjVCTD5cAAonW5h4Wxd4DXde7wfC99PjYrrfIVPnKAPx5WL8EBvozI+ldhKBLj0hY3d9Ke5mAFImX9LuKV33aF9vE8HhhjkjrEjew7hFrPcGlskPqRi1D5ebBM891IXK1/EYYxabw67bVKqZ7jDhjEy5JTcDUXcfgd1afvfUjdqzvz+JwcQb0M6eUiuqjFM3OsCLOX0j8VPVdqEl22m6ObfEcdAB/4aIrwADp05vx/g/g2QD72ulNw+xmCzWcykiYNWJac53BQmrHKNwJqjM7xsK8EMdErD+EwpfZZUAAsrU7ZyzCt4jsEp6wsaCD7tsaFUzk58+r6dp3mZBWXX2ej8+E0= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: microsoft.com X-MS-Exchange-CrossTenant-Network-Message-Id: aec6404f-ae9e-4dad-d062-08d627367ee8 X-MS-Exchange-CrossTenant-originalarrivaltime: 01 Oct 2018 00:40:32.8976 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY4PR21MB0120 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Sandipan Das [ Upstream commit fa694160cca6dbba17c57dc7efec5f93feaf8795 ] This makes sure that the SyS symbols are ignored for any powerpc system, not just the big endian ones. Reported-by: Naveen N. Rao Signed-off-by: Sandipan Das Reviewed-by: Kamalesh Babulal Acked-by: Naveen N. Rao Cc: Jiri Olsa Cc: Ravi Bangoria Fixes: fb6d59423115 ("perf probe ppc: Use the right prefix when ignoring Sy= S symbols on ppc") Link: http://lkml.kernel.org/r/20180828090848.1914-1-sandipan@linux.ibm.com Signed-off-by: Arnaldo Carvalho de Melo Signed-off-by: Sasha Levin --- tools/perf/arch/powerpc/util/sym-handling.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/tools/perf/arch/powerpc/util/sym-handling.c b/tools/perf/arch/= powerpc/util/sym-handling.c index de477a3dc968..01a288c79dc5 100644 --- a/tools/perf/arch/powerpc/util/sym-handling.c +++ b/tools/perf/arch/powerpc/util/sym-handling.c @@ -21,15 +21,16 @@ bool elf__needs_adjust_symbols(GElf_Ehdr ehdr) =20 #endif =20 -#if !defined(_CALL_ELF) || _CALL_ELF !=3D 2 int arch__choose_best_symbol(struct symbol *syma, struct symbol *symb __maybe_unused) { char *sym =3D syma->name; =20 +#if !defined(_CALL_ELF) || _CALL_ELF !=3D 2 /* Skip over any initial dot */ if (*sym =3D=3D '.') sym++; +#endif =20 /* Avoid "SyS" kernel syscall aliases */ if (strlen(sym) >=3D 3 && !strncmp(sym, "SyS", 3)) @@ -40,6 +41,7 @@ int arch__choose_best_symbol(struct symbol *syma, return SYMBOL_A; } =20 +#if !defined(_CALL_ELF) || _CALL_ELF !=3D 2 /* Allow matching against dot variants */ int arch__compare_symbol_names(const char *namea, const char *nameb) { --=20 2.17.1