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| author |  Giulio Benetti <giulio.benetti@micronovasrl.com> | 2019-06-14 23:03:37 +0200 |
|---|---|---|
| committer |  Thomas Petazzoni <thomas.petazzoni@bootlin.com> | 2019-06-22 19:31:52 +0200 |
| commit | 4adc06b4f80a68ff3d0eb5ad72879b2cf8514659 (patch) | |
| tree | d292b2524e4e4f1a5088d11155e60a8e21e1254b /toolchain | |
| parent | 4e5b4397588e5809ca0d8a6682520044da1ab57a (diff) | |
| download | buildroot-4adc06b4f80a68ff3d0eb5ad72879b2cf8514659.tar.gz buildroot-4adc06b4f80a68ff3d0eb5ad72879b2cf8514659.tar.bz2 | |
toolchain: introduce BR2_TOOLCHAIN_HAS_GCC_BUG_63261
dmalloc and fxload fail to build for the Microblaze architecture with
optimization enabled with gcc < 8.x, with the following failure:
Error: PC relative branch to label logerror which is not in the instruction space
Error: operation combines symbols in different segments
The following defconfig allows to reproduce the issue:
BR2_microblazeel=y
BR2_OPTIMIZE_2=y
BR2_KERNEL_HEADERS_5_0=y
BR2_GCC_VERSION_7_X=y
BR2_PACKAGE_FXLOAD=y
The gcc bug was reported at
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63261 and is fixed as of
gcc 8.x.
Signed-off-by: Giulio Benetti <giulio.benetti@micronovasrl.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Diffstat (limited to 'toolchain')
| -rw-r--r-- | toolchain/Config.in | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/toolchain/Config.in b/toolchain/Config.in index 7cdcb0e514..6d1696ea83 100644 --- a/toolchain/Config.in +++ b/toolchain/Config.in @@ -113,6 +113,13 @@ config BR2_TOOLCHAIN_SUPPORTS_VARIADIC_MI_THUNK depends on !BR2_or1k depends on !BR2_xtensa +# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63261. This bug no +# longer exists in gcc 8.x. +config BR2_TOOLCHAIN_HAS_GCC_BUG_63261 + bool + default y if BR2_microblaze + depends on !BR2_TOOLCHAIN_GCC_AT_LEAST_8 + # Prior to gcc 7.x, exception_ptr, nested_exception and future from # libstdc++ would only be provided on architectures that support # always lock-free atomic ints. See |