From patchwork Wed Jun 24 20:31:54 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sami Tolvanen X-Patchwork-Id: 11624291 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4855460D for ; Wed, 24 Jun 2020 20:35:29 +0000 (UTC) Received: from mother.openwall.net (mother.openwall.net [195.42.179.200]) by mail.kernel.org (Postfix) with SMTP id A575E20578 for ; Wed, 24 Jun 2020 20:35:28 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="MpnW9sRj" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org A575E20578 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=kernel-hardening-return-19124-patchwork-kernel-hardening=patchwork.kernel.org@lists.openwall.com Received: (qmail 1794 invoked by uid 550); 24 Jun 2020 20:33:39 -0000 Mailing-List: contact kernel-hardening-help@lists.openwall.com; run by ezmlm Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-ID: Delivered-To: mailing list kernel-hardening@lists.openwall.com Received: (qmail 1716 invoked from network); 24 Jun 2020 20:33:38 -0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=Y5ofKWtW7b37fMwYLfPdHt3IGKVdbeQxX7e2DATRt0o=; b=MpnW9sRj+tNBN3TDOB0E4bCD73iqcMpQvhC/oM2fJsIoYTK0vvtDvbgVlrqJ4oIK0n hUkrO/tMTdR+N69BPrGONWoZVqr/PGTcGNGx7KoFKTb76Da/RvpOWxtl8VBxl/EZOrgt 5F9d69yFBuUFcdmnwtkp0D0VXoRY0s2h1Yr7OuAvRe5TUtgm7VwUMLCUarJXBYi3YH1w ecgv9j79/kdCnb16j6h9hpiIIbrE81Rw7ot9VeyVU18a4/rQr8YcJy/lwnjNPlRdogMZ F7b/c1lcoIWNDz5L2rbw2gGQuBQXJi1K+B1Nnm4G09LoPyPmFpMaZH6DTHw/IetIWtiC Gcqg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=Y5ofKWtW7b37fMwYLfPdHt3IGKVdbeQxX7e2DATRt0o=; b=oPMsd3ZHL90KsTTpjkXeEmZlxsoYkToJgbfk1eID2xSo8JoMZXCfx/9qnZbRqZOhSk khKjnlabvAl0sz3uYS3WB0LmYOFjvi1Pxkce1EGVdSIInh3KmI3CQGCI4IGAa0/CLOT7 srZRoJTMBBcnnclNX8Lvw8vNTb6SbWsHeHpFNmomZXVRDALXxnJTNnyRqxkpn+I6AF2O nxAFXZH8fEkpiwqKZRsvnX7H8dXgiXD8fxOxw8TheIKawD3qCqfWu+WZXT7r4NpWuK49 XjvdFmhHk4VBNs0wqNk3fwHEsWghD8pT4GKh9tW5vcCjph1VsdsGbXHykv2a86FWsUFH +igQ== X-Gm-Message-State: AOAM532wcSuhsNFpAS45SBT5ftSmc3f5GH9x/cArrq8y5bys7elXW/82 XZdfAcqkqoFEqI9muuLmOwRBMAi5HRjTsJIBhGI= X-Google-Smtp-Source: ABdhPJyJOTQdckiniPybTRC01pO0CmjbQctgmf229uGzKfKGpm1EtRROJM8c/GsGd5lxXSpfxv2hqLta+vkNePH8WAU= X-Received: by 2002:ad4:4ae1:: with SMTP id cp1mr752045qvb.91.1593030807024; Wed, 24 Jun 2020 13:33:27 -0700 (PDT) Date: Wed, 24 Jun 2020 13:31:54 -0700 In-Reply-To: <20200624203200.78870-1-samitolvanen@google.com> Message-Id: <20200624203200.78870-17-samitolvanen@google.com> Mime-Version: 1.0 References: <20200624203200.78870-1-samitolvanen@google.com> X-Mailer: git-send-email 2.27.0.212.ge8ba1cc988-goog Subject: [PATCH 16/22] arm64: export CC_USING_PATCHABLE_FUNCTION_ENTRY From: Sami Tolvanen To: Masahiro Yamada , Will Deacon Cc: Greg Kroah-Hartman , "Paul E. McKenney" , Kees Cook , Nick Desaulniers , clang-built-linux@googlegroups.com, kernel-hardening@lists.openwall.com, linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, x86@kernel.org, Sami Tolvanen Since arm64 does not use -pg in CC_FLAGS_FTRACE with DYNAMIC_FTRACE_WITH_REGS, skip running recordmcount by exporting CC_USING_PATCHABLE_FUNCTION_ENTRY. Signed-off-by: Sami Tolvanen --- arch/arm64/Makefile | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile index a0d94d063fa8..fc6c20a10291 100644 --- a/arch/arm64/Makefile +++ b/arch/arm64/Makefile @@ -115,6 +115,7 @@ endif ifeq ($(CONFIG_DYNAMIC_FTRACE_WITH_REGS),y) KBUILD_CPPFLAGS += -DCC_USING_PATCHABLE_FUNCTION_ENTRY CC_FLAGS_FTRACE := -fpatchable-function-entry=2 + export CC_USING_PATCHABLE_FUNCTION_ENTRY := 1 endif # Default value