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a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=wzTjCzGg3xaEC7ll/kCd4uRGsOqMFFvk2QDCKEKZJPs=; b=KxHftb69mEpoaD7FNSgSGae2l4RJfujgT6EsXFACBySREqoBZdkc2N6mBxQbW7u6OD jiIaBZ7cgIPPfuPGS/4NtUk9D2tITkKiPYbzf1l/NEdNOtC9aR3d652nRM8ijCeMnDSI yksVobZrUfflBPcN8p2DJ08GTuDxjyZBOSJ5Y5LXXqVfXANJ73SSpvfRAeAcHE6Jo9pt 5fVea7JfUaKcGq9t3ztSjN+d3Z20ek5VeL2O8EnFQtlTW0tFM7otJaMJ07gcDNQ6Y5ol 54uDEfqLBsbz/SiD/7lB9QnncRvJ7NVsqHTAMaxd1oBAYoYqKn5zxsJu3J+8KvAry2H+ j5YQ== X-Gm-Message-State: AOAM533OHXvSxQOVE2BzWSDtvkDsLCjnfV3VvUHGY922m7mdHm70+G3c GQOakkz8h7pRL1AUjoAjtuwQwA0PY5IrKU/G8q0= X-Google-Smtp-Source: ABdhPJz2ypRSC9mllfNnIhgyfpZXn6C3IOzuDT16CdCuKPyuF6U9OOcO8z3rZ0bOQ0QtPSPEFo5uPG0gQq+yj7Gtb6I= X-Received: from samitolvanen1.mtv.corp.google.com ([2620:15c:201:2:f693:9fff:fef4:1b6d]) (user=samitolvanen job=sendgmr) by 2002:ad4:58e3:: with SMTP id di3mr6759116qvb.54.1601416009709; Tue, 29 Sep 2020 14:46:49 -0700 (PDT) Date: Tue, 29 Sep 2020 14:46:10 -0700 In-Reply-To: <20200929214631.3516445-1-samitolvanen@google.com> Message-Id: <20200929214631.3516445-9-samitolvanen@google.com> Mime-Version: 1.0 References: <20200929214631.3516445-1-samitolvanen@google.com> X-Mailer: git-send-email 2.28.0.709.gb0816b6eb0-goog Subject: [PATCH v4 08/29] x86, build: use objtool mcount From: Sami Tolvanen To: Masahiro Yamada , Will Deacon , Steven Rostedt X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200929_224652_393639_D882D915 X-CRM114-Status: GOOD ( 10.82 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-arch@vger.kernel.org, x86@kernel.org, Kees Cook , "Paul E. McKenney" , kernel-hardening@lists.openwall.com, Peter Zijlstra , Greg Kroah-Hartman , linux-kbuild@vger.kernel.org, Nick Desaulniers , linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com, Sami Tolvanen , linux-pci@vger.kernel.org, linux-arm-kernel@lists.infradead.org Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Select HAVE_OBJTOOL_MCOUNT if STACK_VALIDATION is selected to use objtool to generate __mcount_loc sections for dynamic ftrace with Clang and gcc <5 (later versions of gcc use -mrecord-mcount). Signed-off-by: Sami Tolvanen Reviewed-by: Kees Cook --- arch/x86/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 7101ac64bb20..6de2e5c0bdba 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -163,6 +163,7 @@ config X86 select HAVE_CMPXCHG_LOCAL select HAVE_CONTEXT_TRACKING if X86_64 select HAVE_C_RECORDMCOUNT + select HAVE_OBJTOOL_MCOUNT if STACK_VALIDATION select HAVE_DEBUG_KMEMLEAK select HAVE_DMA_CONTIGUOUS select HAVE_DYNAMIC_FTRACE -- 2.28.0.709.gb0816b6eb0-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel