From: Amit Daniel Kachhap <amit.kachhap@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: Mark Rutland <mark.rutland@arm.com>,
Kees Cook <keescook@chromium.org>,
Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Will Deacon <will@kernel.org>,
Ramana Radhakrishnan <ramana.radhakrishnan@arm.com>,
Kristina Martsenko <kristina.martsenko@arm.com>,
Dave Martin <Dave.Martin@arm.com>,
Amit Daniel Kachhap <amit.kachhap@arm.com>,
James Morse <james.morse@arm.com>,
Vincenzo Frascino <Vincenzo.Frascino@arm.com>,
Mark Brown <Mark.Brown@arm.com>,
Richard Henderson <richard.henderson@linaro.org>,
Vincenzo Frascino <vincenzo.frascino@arm.com>,
Masahiro Yamada <yamada.masahiro@socionext.com>,
linux-kbuild@vger.kernel.org
Subject: [PATCH v3 14/16] kconfig: Add support for 'as-option'
Date: Mon, 16 Dec 2019 14:17:16 +0530 [thread overview]
Message-ID: <1576486038-9899-15-git-send-email-amit.kachhap@arm.com> (raw)
In-Reply-To: <1576486038-9899-1-git-send-email-amit.kachhap@arm.com>
From: Vincenzo Frascino <vincenzo.frascino@arm.com>
Currently kconfig does not have a feature that allows to detect if the
used assembler supports a specific compilation option.
Introduce 'as-option' to serve this purpose in the context of Kconfig:
config X
def_bool $(as-option,...)
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: linux-kbuild@vger.kernel.org
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Amit Daniel Kachhap <amit.kachhap@arm.com>
---
Changes since last version:
* None.
scripts/Kconfig.include | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/scripts/Kconfig.include b/scripts/Kconfig.include
index d4adfbe..cc465dd 100644
--- a/scripts/Kconfig.include
+++ b/scripts/Kconfig.include
@@ -31,6 +31,10 @@ cc-option = $(success,$(CC) -Werror $(CLANG_FLAGS) $(1) -E -x c /dev/null -o /de
# Return y if the linker supports <flag>, n otherwise
ld-option = $(success,$(LD) -v $(1))
+# $(as-option,<flag>)
+# Return y if the assembler supports <flag>, n otherwise
+as-option = $(success, $(CC) $(CLANG_FLAGS) $(1) -E -x assembler /dev/null -o /dev/null)
+
# check if $(CC) and $(LD) exist
$(error-if,$(failure,command -v $(CC)),compiler '$(CC)' not found)
$(error-if,$(failure,command -v $(LD)),linker '$(LD)' not found)
--
2.7.4
next parent reply other threads:[~2019-12-16 8:48 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1576486038-9899-1-git-send-email-amit.kachhap@arm.com>
2019-12-16 8:47 ` Amit Daniel Kachhap [this message]
2019-12-17 11:43 ` [PATCH v3 14/16] kconfig: Add support for 'as-option' Masahiro Yamada
2020-01-17 11:33 ` Catalin Marinas
2020-01-17 17:51 ` Masahiro Yamada
2020-01-20 10:26 ` Vincenzo Frascino
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