From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.linuxfoundation.org ([140.211.169.12]:53128 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751944AbdHISIZ (ORCPT ); Wed, 9 Aug 2017 14:08:25 -0400 Subject: Patch "ARM: 8632/1: ftrace: fix syscall name matching" has been added to the 4.9-stable tree To: rabinv@axis.com, alexander.levin@verizon.com, gregkh@linuxfoundation.org, rmk+kernel@arm.linux.org.uk Cc: , From: Date: Wed, 09 Aug 2017 11:08:23 -0700 Message-ID: <150230210356191@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=ANSI_X3.4-1968 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org List-ID: This is a note to let you know that I've just added the patch titled ARM: 8632/1: ftrace: fix syscall name matching to the 4.9-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: arm-8632-1-ftrace-fix-syscall-name-matching.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let know about it. >>From foo@baz Wed Aug 9 10:32:06 PDT 2017 From: Rabin Vincent Date: Wed, 23 Nov 2016 13:02:32 +0100 Subject: ARM: 8632/1: ftrace: fix syscall name matching From: Rabin Vincent [ Upstream commit 270c8cf1cacc69cb8d99dea812f06067a45e4609 ] ARM has a few system calls (most notably mmap) for which the names of the functions which are referenced in the syscall table do not match the names of the syscall tracepoints. As a consequence of this, these tracepoints are not made available. Implement arch_syscall_match_sym_name to fix this and allow tracing even these system calls. Signed-off-by: Rabin Vincent Signed-off-by: Russell King Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- arch/arm/include/asm/ftrace.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) --- a/arch/arm/include/asm/ftrace.h +++ b/arch/arm/include/asm/ftrace.h @@ -54,6 +54,24 @@ static inline void *return_address(unsig #define ftrace_return_address(n) return_address(n) +#define ARCH_HAS_SYSCALL_MATCH_SYM_NAME + +static inline bool arch_syscall_match_sym_name(const char *sym, + const char *name) +{ + if (!strcmp(sym, "sys_mmap2")) + sym = "sys_mmap_pgoff"; + else if (!strcmp(sym, "sys_statfs64_wrapper")) + sym = "sys_statfs64"; + else if (!strcmp(sym, "sys_fstatfs64_wrapper")) + sym = "sys_fstatfs64"; + else if (!strcmp(sym, "sys_arm_fadvise64_64")) + sym = "sys_fadvise64_64"; + + /* Ignore case since sym may start with "SyS" instead of "sys" */ + return !strcasecmp(sym, name); +} + #endif /* ifndef __ASSEMBLY__ */ #endif /* _ASM_ARM_FTRACE */ Patches currently in stable-queue which might be from rabinv@axis.com are queue-4.9/arm-8632-1-ftrace-fix-syscall-name-matching.patch