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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=I0YLtwhWjc07CuFqeB5q66ZrbEvcoZ20B6+f9QGQIyM=; b=IYxo/UZ+NWyTcLCIkiMWs/7dd7f4g4Gv+5qYfvB9Ub6pF6kdBxdC8oHyG5Vlm/xx21 8MvH9ZW2XCUbOCdq1OZsp3lBcgdXGb9+oFdQw9cfwXftstoQVaDiwXNUuZAHYykj1e8X FXkIIbdiL1/uXLqhr3nDxJ/xRJVx+nPI6VJE+v4nr+VF//HwX0cYAXrZjKQxDMo1KA+9 DKDechScZsIR5040AtVJeOd/N109CyM6qy4VWwJhhR5UJsRymEXG4JDic0YDzDRqwFcv GjlKvjZe4Cgbkq+Sa5J6T9LhD0yL0XXJOGg6II7py32mBzNYzvwuxY3gg3LWtz9rA4xu 7l3A== X-Gm-Message-State: AOAM53139tg49yB/eVOT2ipRu/9xjEQi6qiQi0bwo0loLSTmZzQXXlxR TCpEFS0GFaTPJ1+ydeaK6/ti8vNxpeo0Nxz1Jdo= X-Google-Smtp-Source: ABdhPJz8YsEPOq657LzaNLkjWdjXppy9+ITNLo8GCqthbQa6sHwPiOQhQjOantZ7VXaLO7lFT1ulWYm9Ne5qkWpjkw4= X-Received: from samitolvanen1.mtv.corp.google.com ([2620:15c:201:2:f693:9fff:fef4:1b6d]) (user=samitolvanen job=sendgmr) by 2002:ad4:5a0e:: with SMTP id ei14mr20723233qvb.15.1600460099899; Fri, 18 Sep 2020 13:14:59 -0700 (PDT) Date: Fri, 18 Sep 2020 13:14:15 -0700 In-Reply-To: <20200918201436.2932360-1-samitolvanen@google.com> Message-Id: <20200918201436.2932360-10-samitolvanen@google.com> Mime-Version: 1.0 References: <20200918201436.2932360-1-samitolvanen@google.com> X-Mailer: git-send-email 2.28.0.681.g6f77f65b4e-goog Subject: [PATCH v3 09/30] x86, build: use objtool mcount From: Sami Tolvanen To: Masahiro Yamada , Will Deacon X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200918_161505_468590_9F6986C9 X-CRM114-Status: GOOD ( 11.90 ) 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, Steven Rostedt , 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 -- 2.28.0.681.g6f77f65b4e-goog _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel