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[97.126.123.70]) by smtp.gmail.com with ESMTPSA id k9sm6079383pjo.19.2020.03.11.11.04.17 for (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Mar 2020 11:04:18 -0700 (PDT) From: Richard Henderson To: linux-arm-kernel@lists.infradead.org Subject: [PATCH 1/6] arm64: Add asm/ccset.h header Date: Wed, 11 Mar 2020 11:04:11 -0700 Message-Id: <20200311180416.6509-2-richard.henderson@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20200311180416.6509-1-richard.henderson@linaro.org> References: <20200311180416.6509-1-richard.henderson@linaro.org> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200311_110419_972345_7CBABDB5 X-CRM114-Status: GOOD ( 10.02 ) X-Spam-Score: -0.2 (/) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-0.2 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2607:f8b0:4864:20:0:0:0:1044 listed in] [list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 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: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org With gcc 10, arm64 includes support for flag outputs, much like x86 has done for years. Mirror the macros that x86 places in asm/asm.h, with the necessary addition of CC_CLOBBER. Signed-off-by: Richard Henderson --- arch/arm64/include/asm/ccset.h | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) create mode 100644 arch/arm64/include/asm/ccset.h diff --git a/arch/arm64/include/asm/ccset.h b/arch/arm64/include/asm/ccset.h new file mode 100644 index 000000000000..e733d383f515 --- /dev/null +++ b/arch/arm64/include/asm/ccset.h @@ -0,0 +1,19 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_CCSET_H +#define __ASM_CCSET_H + +/* + * Macros to generate condition code outputs from inline assembly. + * The output operand must be integral but type "bool" preferred. + */ +#ifdef __GCC_ASM_FLAG_OUTPUTS__ +# define CC_SET(c) "\n\t/* output condition code " #c "*/\n" +# define CC_OUT(c) "=@cc" #c +# define CC_CLOBBER +#else +# define CC_SET(c) "\n\tcset %[_cc_" #c "], " #c "\n" +# define CC_OUT(c) [_cc_ ## c] "=r" +# define CC_CLOBBER "cc" +#endif + +#endif /* __ASM_CCSET_H */