From e418a2c06a1bdc7a5fc65ce58400ed0a9c9e28bb Mon Sep 17 00:00:00 2001 From: Bagas Sanjaya Date: Wed, 24 May 2023 10:16:01 +0700 Subject: [PATCH] toolchain-external-custom: Describe BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX "Toolchain prefix" option apparently doesn't have any help describing it, which causes confusion when using external toolchain. Leaving this option at default prefix name ("$(ARCH)-linux") when external toolchain components are called with different prefix (e.g. "$(ARCH)-unknown-linux-gnu") may cause build failure unless the prefix symlink is already in place (e.g. when using Buildroot-generated toolchain as external toolchain). Describe the option to clarify. Signed-off-by: Bagas Sanjaya Reviewed-by: Thomas Petazzoni Signed-off-by: Yann E. MORIN --- .../toolchain-external-custom/Config.in.options | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/toolchain/toolchain-external/toolchain-external-custom/Config.in.options b/toolchain/toolchain-external/toolchain-external-custom/Config.in.options index 0fd8841e5b..8ca66ab7b6 100644 --- a/toolchain/toolchain-external/toolchain-external-custom/Config.in.options +++ b/toolchain/toolchain-external/toolchain-external-custom/Config.in.options @@ -24,6 +24,21 @@ config BR2_TOOLCHAIN_EXTERNAL_REL_BIN_PATH config BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX string "Toolchain prefix" default "$(ARCH)-linux" + help + Component name prefix used by your external toolchain. + + Typically, this is the target tuple, e.g. something that + looks like: $(ARCH)-unknown-linux-gnu. + + If unsure, look at the "bin" directory of your toolchain and + note the part of component name before the last dash, i.e. if + you call the toolchain's gcc as $(ARCH)-unknown-linux-gnu-gcc, + the prefix is $(ARCH)-unknown-linux-gnu. + + Note that Buildroot toolchains have shorter aliases that look + like $(ARCH)-linux, as symlinks to the full-tuple components, + so you can leave this option at default value if you use them + as external toolchain. choice bool "External toolchain gcc version"