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Mon, 1 Oct 2018 00:41:26 +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 00:41:26 +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 4.4 03/17] perf probe powerpc: Ignore SyS symbols irrespective of endianness Thread-Topic: [PATCH AUTOSEL 4.4 03/17] perf probe powerpc: Ignore SyS symbols irrespective of endianness Thread-Index: AQHUWR98DDrGbV/ViUq8ZcxNpCghdQ== Date: Mon, 1 Oct 2018 00:41:26 +0000 Message-ID: <20181001004122.147276-3-alexander.levin@microsoft.com> References: <20181001004122.147276-1-alexander.levin@microsoft.com> In-Reply-To: <20181001004122.147276-1-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;CY4PR21MB0165;6:H2Yu8RZO181qGqB/xCVJIfSuUjNC2avvTZW/A4Y+Z/UkQnE22Sfn1gMMFIPEyzWsagixu3fUyC66rW7O1YbSVFpROA7LqPQjx4JzuyNTlvw70TsZxrjHjX6wm9NTpCCvOBzl8U5fZzbU7x45B7gAEG568mqHkbNoLEsFtpP1X07xc3iKT1httxyKkLPdLISiEVeRwABhF4RbysTFhjqWRt+rpYOFHzFclxDRWI23hyllzDcPoS1wsM1yztp+6+GL9JQVwwCIVLtCyNEu4Y9FsRYQcKfK2gFnv+bKk5N2vHYNw3Po4AzOoN0xtTb2mZyAm3gD5t3gMJIBvkrPyiT2uzNxJgzm221AY86jEYhhbjrxIPZpEU4d3II6QKuXSzYwtBKSvwFOEz9UwIH215N9I0xFzeUPTV1ov4cbSFNXCLDhwdr2hwh29KiTprj9jNQBGBoVH1dPHD1B0ZhXxtj3FQ==;5:sA14KCh3AoKdqEhP9VCo+ZXFlnIupM6MuT6/ugTl8N3FvgCrB0OBi9H49ea9W8Y/XXVLSGvRAO5GZf8I4+G71h5A5uiUvlfn6OoZDQ3oHezq0VOx5a0DcdJnB7yo29qGNTWrvgAu+gp5Y3K0AIx/2hJOMaht2p+Ue4bOhn8ksDQ=;7:3qKLalRNiO6A7z46B5vNH5tRC7uh3SHb2AT58z/5Tt+8q3ln3O9Y+++woXUN5rjMXsk+qqs+mZ0xq2xjegzkl+TPM62QaH5qBflSyPN/ZC2SO9vUHbuvJOaHLLv2ji1nJPlcdtK2nC+q7Dn5mEDnKQdgNHBXHXQzBkWGU0v7oArJ8JQi4mUFvqIw4pDY2fu3rnm89snfZRd52RTyad1fApdt4+ypX+PXXF+OS3f18MfWTvXJlY5H0tmGjUbgEALj x-ms-office365-filtering-correlation-id: 7893706e-4217-4066-fdac-08d627369f0b 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:CY4PR21MB0165; 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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: EH05gaqCw49qN3dV7bwPPLphBC1bCtazkUGflmbhmbwOP7PlL1bfsQ9CS1zxPZ9i3CavGK8mSyJEjOjU4S461rJDwtwU33iWiHgXzsASWHLrHGz19W9uKd/ccuHt6S2SGgtNU801TGqZWoSMgkFHP62+PU4bk2WUPnzsoMYKTXFWccKnjSlfSHgol7YTjKTS/0Ja1IVku7JQQ+IRNTaTVoRCcvW1ZGF7WxatoaqYHSlJzhaHlYgO1tCDsuzpRuoBBaeXUu2+7xQDt6wpqP6sWyi5wxpAvIzjvPukZQO3JtC5KTu5AS/tIeiUUPMNd7Nogix5Z5B/7qLXtnpdog82K6yzoGqJKicqKkIN7I+aR/c= 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: 7893706e-4217-4066-fdac-08d627369f0b X-MS-Exchange-CrossTenant-originalarrivaltime: 01 Oct 2018 00:41:26.8343 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 72f988bf-86f1-41af-91ab-2d7cd011db47 X-MS-Exchange-Transport-CrossTenantHeadersStamped: CY4PR21MB0165 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 bbc1a50768dd..873f19f1a771 100644 --- a/tools/perf/arch/powerpc/util/sym-handling.c +++ b/tools/perf/arch/powerpc/util/sym-handling.c @@ -27,15 +27,16 @@ void arch__elf_sym_adjust(GElf_Sym *sym) #endif #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)) @@ -46,6 +47,7 @@ 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