[Buildroot] [PATCH] toolchain-external: add a check for broken toolchains
Romain Naour
romain.naour at gmail.com
Mon Feb 1 11:31:27 UTC 2016
Some toolchain release can be broken due to sysroot location issue,
so the $(ARCH)-linux-gnu-gcc -print-file-name=libc.a command is
broken and return only "libc.a"
This lead to an error during the header check version helper,
so these toolchains can't be imported into Buildroot.
cc1: fatal error: $PWD/libc.a/usr/include/linux/version.h: No such file or directory
compilation terminated.
support/scripts/check-kernel-headers.sh: line 38: /tmp/check-headers.4V5PPF: Permission denied
This issue happen with the first linaro 2015.11 [1] release and
CodeSourcery standard edition [2].
Here is the sysroot directory tree for linaro 2015.11:
$ ls libc/arm-linux-gnueabihf
etc lib sbin usr var
Here is the sysroot directory tree for CodeSourcery standard:
$ ls libc/sgxx-glibc
etc lib lib64 sbin usr var
Usually the sysroot is located directly under libc directory
$ ls libc/
etc lib sbin usr var
Add a check to error out with an explicit error message
[1] https://bugs.linaro.org/show_bug.cgi?id=1995#c7
[2] http://lists.busybox.net/pipermail/buildroot/2014-October/110696.html
Signed-off-by: Romain Naour <romain.naour at gmail.com>
---
toolchain/toolchain-external/toolchain-external.mk | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/toolchain/toolchain-external/toolchain-external.mk b/toolchain/toolchain-external/toolchain-external.mk
index 9ebf7bd..303a32a 100644
--- a/toolchain/toolchain-external/toolchain-external.mk
+++ b/toolchain/toolchain-external/toolchain-external.mk
@@ -478,6 +478,10 @@ define TOOLCHAIN_EXTERNAL_CONFIGURE_CMDS
@echo "External toolchain doesn't support --sysroot. Cannot use." ; \
exit 1 ; \
fi ; \
+ if test "$${SYSROOT_DIR}" = "libc.a" ; then \
+ @echo "External toolchain broken, unable to find the main sysroot. Cannot use." ; \
+ exit 1 ; \
+ fi ; \
$(call check_kernel_headers_version,\
$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC)),\
$(call qstrip,$(BR2_TOOLCHAIN_HEADERS_AT_LEAST))); \
@@ -571,6 +575,10 @@ define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_LIBS
@echo "External toolchain doesn't support --sysroot. Cannot use." ; \
exit 1 ; \
fi ; \
+ if test "$${SYSROOT_DIR}" = "libc.a" ; then \
+ @echo "External toolchain broken, unable to find the main sysroot. Cannot use." ; \
+ exit 1 ; \
+ fi ; \
ARCH_SYSROOT_DIR="$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
ARCH_LIB_DIR="$(call toolchain_find_libdir,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
SUPPORT_LIB_DIR="" ; \
--
2.4.3
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