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Tue, 08 Apr 2025 06:21:03 -0700 (PDT) From: Jean-Philippe Brucker To: andrew.jones@linux.dev, alexandru.elisei@arm.com Cc: eric.auger@redhat.com, kvmarm@lists.linux.dev, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, vladimir.murzin@arm.com, Jean-Philippe Brucker Subject: [kvm-unit-tests PATCH v4 3/5] arm64: Implement the ./configure --processor option Date: Tue, 8 Apr 2025 14:20:52 +0100 Message-ID: <20250408132053.2397018-5-jean-philippe@linaro.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250408132053.2397018-2-jean-philippe@linaro.org> References: <20250408132053.2397018-2-jean-philippe@linaro.org> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Alexandru Elisei The help text for the ./configure --processor option says: --processor=PROCESSOR processor to compile for (cortex-a57) but, unlike arm, the build system does not pass a -mcpu argument to the compiler. Fix it, and bring arm64 at parity with arm. Note that this introduces a regression, which is also present on arm: if the --processor argument is something that the compiler doesn't understand, but qemu does (like 'max'), then compilation fails. This will be fixed in a following patch; another fix is to specify a CPU model that gcc implements by using --cflags=-mcpu=. Reviewed-by: Andrew Jones Reviewed-by: Eric Auger Signed-off-by: Alexandru Elisei Signed-off-by: Jean-Philippe Brucker --- arm/Makefile.arm | 1 - arm/Makefile.common | 1 + 2 files changed, 1 insertion(+), 1 deletion(-) diff --git a/arm/Makefile.arm b/arm/Makefile.arm index 7fd39f3a..d6250b7f 100644 --- a/arm/Makefile.arm +++ b/arm/Makefile.arm @@ -12,7 +12,6 @@ $(error Cannot build arm32 tests as EFI apps) endif CFLAGS += $(machine) -CFLAGS += -mcpu=$(PROCESSOR) CFLAGS += -mno-unaligned-access ifeq ($(TARGET),qemu) diff --git a/arm/Makefile.common b/arm/Makefile.common index f828dbe0..a5d97bcf 100644 --- a/arm/Makefile.common +++ b/arm/Makefile.common @@ -25,6 +25,7 @@ AUXFLAGS ?= 0x0 # stack.o relies on frame pointers. KEEP_FRAME_POINTER := y +CFLAGS += -mcpu=$(PROCESSOR) CFLAGS += -std=gnu99 CFLAGS += -ffreestanding CFLAGS += -O2