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authorGravatar Samuel Martin <s.martin49@gmail.com>2014-03-08 15:38:31 +0100
committerGravatar Peter Korsgaard <peter@korsgaard.com>2014-03-23 23:17:56 +0100
commita1a86ebfbad1bcce471376ae74e42304553e725e (patch)
tree7578653d579c858377413444a617f73bd7c4a6b5 /toolchain/toolchain-external/Config.in
parent7e634a4836c5a2754cf94924baee7082efa9dd49 (diff)
downloadbuildroot-a1a86ebfbad1bcce471376ae74e42304553e725e.tar.gz
buildroot-a1a86ebfbad1bcce471376ae74e42304553e725e.tar.bz2
liburcu: disable build with gcc-4.8.x on ARM
Because of a gcc bug [1], liburcu checks for compiler version [2] and stops the build prematurely if gcc-4.8.[0-2] is detected for ARM. However a bug fix exists [3] and may be backported by ARM toolchain providers; that's what is done in Buildroot [4] or Linaro [5]. So, this change: - add a patch in liburcu to allow build with ARM gcc-4.8.2; - adds a new hidden symbol to reflect the toolchain status with regard to this bug [1]; - and controls liburcu visibility. However, a limitation of this is when the user is using a custom toolchain; that's why the bug details have been added in the liburcu help message. [1] http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58854 [2] http://git.lttng.org/?p=userspace-rcu.git;a=commitdiff;h=4b79310 [3] http://gcc.gnu.org/viewcvs/gcc?view=revision&revision=204665 [4] http://git.buildroot.net/buildroot/commit/?id=c443c2be1768ebbdcb76c55d0a08fd7c983488c8 [5] http://bazaar.launchpad.net/~linaro-toolchain-dev/gcc-linaro/4.8/revision/122147 [Peter: hide normal toolchain comment if bug, add comment explaining issue if bug] Signed-off-by: Samuel Martin <s.martin49@gmail.com> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Diffstat (limited to 'toolchain/toolchain-external/Config.in')
-rw-r--r--toolchain/toolchain-external/Config.in4
1 files changed, 4 insertions, 0 deletions
diff --git a/toolchain/toolchain-external/Config.in b/toolchain/toolchain-external/Config.in
index 7ad46c3f19..3990336195 100644
--- a/toolchain/toolchain-external/Config.in
+++ b/toolchain/toolchain-external/Config.in
@@ -13,6 +13,7 @@ config BR2_TOOLCHAIN_EXTERNAL_LINARO_2013_11
depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
depends on BR2_ARM_EABIHF
depends on !BR2_PREFER_STATIC_LIB
+ select BR2_TOOLCHAIN_HAS_GCC_BUG_58854 # toolchain generated before fix backport
select BR2_TOOLCHAIN_EXTERNAL_GLIBC
select BR2_TOOLCHAIN_HAS_NATIVE_RPC
select BR2_INSTALL_LIBSTDCPP
@@ -36,6 +37,7 @@ config BR2_TOOLCHAIN_EXTERNAL_LINARO_2013_10
depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
depends on BR2_ARM_EABIHF
depends on !BR2_PREFER_STATIC_LIB
+ select BR2_TOOLCHAIN_HAS_GCC_BUG_58854 # toolchain generated before fix backport
select BR2_TOOLCHAIN_EXTERNAL_GLIBC
select BR2_TOOLCHAIN_HAS_NATIVE_RPC
select BR2_INSTALL_LIBSTDCPP
@@ -59,6 +61,7 @@ config BR2_TOOLCHAIN_EXTERNAL_LINARO_2013_09
depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
depends on BR2_ARM_EABIHF
depends on !BR2_PREFER_STATIC_LIB
+ select BR2_TOOLCHAIN_HAS_GCC_BUG_58854 # toolchain generated before fix backport
select BR2_TOOLCHAIN_EXTERNAL_GLIBC
select BR2_TOOLCHAIN_HAS_NATIVE_RPC
select BR2_INSTALL_LIBSTDCPP
@@ -86,6 +89,7 @@ config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM201311
depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
depends on BR2_ARM_EABI
depends on !BR2_PREFER_STATIC_LIB
+ select BR2_TOOLCHAIN_HAS_GCC_BUG_58854 # based-on gcc-4.8.1
select BR2_TOOLCHAIN_EXTERNAL_GLIBC
select BR2_TOOLCHAIN_HAS_NATIVE_RPC
select BR2_INSTALL_LIBSTDCPP