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Mon, 29 Aug 2022 05:53:41 +0000 (GMT) Received: from li-c3569c4c-1ef8-11b2-a85c-ee139cda3133.ibm.com.com (unknown [9.43.67.34]) by d06av22.portsmouth.uk.ibm.com (Postfix) with ESMTP; Mon, 29 Aug 2022 05:53:41 +0000 (GMT) From: Sathvika Vasireddy To: linuxppc-dev@lists.ozlabs.org Cc: jpoimboe@redhat.com, peterz@infradead.org, linux-kernel@vger.kernel.org, aik@ozlabs.ru, mpe@ellerman.id.au, mingo@redhat.com, christophe.leroy@csgroup.eu, rostedt@goodmis.org, mbenes@suse.cz, npiggin@gmail.com, chenzhongjin@huawei.com, naveen.n.rao@linux.vnet.ibm.com, sv@linux.ibm.com Subject: [PATCH v2 14/16] objtool: Add arch specific function arch_ftrace_match() Date: Mon, 29 Aug 2022 11:22:21 +0530 Message-Id: <20220829055223.24767-15-sv@linux.ibm.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20220829055223.24767-1-sv@linux.ibm.com> References: <20220829055223.24767-1-sv@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: bw1wpbukC5ZYidAWh_FhiJjg4dumQAXv X-Proofpoint-GUID: cArTWq6CjnSzYPxdp8YhBA87pmjw8-jT X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.895,Hydra:6.0.517,FMLib:17.11.122.1 definitions=2022-08-29_02,2022-08-25_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 priorityscore=1501 phishscore=0 spamscore=0 adultscore=0 malwarescore=0 mlxscore=0 lowpriorityscore=0 suspectscore=0 impostorscore=0 bulkscore=0 mlxlogscore=999 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2207270000 definitions=main-2208290026 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add architecture specific function to look for relocation records pointing to arch specific symbols. Suggested-by: Christophe Leroy Signed-off-by: Sathvika Vasireddy --- tools/objtool/arch/x86/decode.c | 8 ++++++++ tools/objtool/check.c | 2 +- tools/objtool/include/objtool/arch.h | 2 ++ 3 files changed, 11 insertions(+), 1 deletion(-) diff --git a/tools/objtool/arch/x86/decode.c b/tools/objtool/arch/x86/decode.c index c260006106be..025598b6b703 100644 --- a/tools/objtool/arch/x86/decode.c +++ b/tools/objtool/arch/x86/decode.c @@ -23,6 +23,14 @@ #include #include +bool arch_ftrace_match(char *name) +{ + if (!strcmp(name, "__fentry__")) + return true; + + return false; +} + static int is_x86_64(const struct elf *elf) { switch (elf->ehdr.e_machine) { diff --git a/tools/objtool/check.c b/tools/objtool/check.c index f1d055467926..01ff7504f18d 100644 --- a/tools/objtool/check.c +++ b/tools/objtool/check.c @@ -2294,7 +2294,7 @@ static int classify_symbols(struct objtool_file *file) if (arch_is_rethunk(func)) func->return_thunk = true; - if (!strcmp(func->name, "__fentry__")) + if (arch_ftrace_match(func->name)) func->fentry = true; if (is_profiling_func(func->name)) diff --git a/tools/objtool/include/objtool/arch.h b/tools/objtool/include/objtool/arch.h index beb2f3aa94ff..2ba4b9897285 100644 --- a/tools/objtool/include/objtool/arch.h +++ b/tools/objtool/include/objtool/arch.h @@ -69,6 +69,8 @@ struct stack_op { struct instruction; +bool arch_ftrace_match(char *name); + void arch_initial_func_cfi_state(struct cfi_init_state *state); int arch_decode_instruction(struct objtool_file *file, const struct section *sec, -- 2.31.1