diff options
Diffstat (limited to 'recipes-kernel/linux/linux-xlnx/3.14/kernel-use-the-gnu89-standard-explicitly.patch')
| -rw-r--r-- | recipes-kernel/linux/linux-xlnx/3.14/kernel-use-the-gnu89-standard-explicitly.patch | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/recipes-kernel/linux/linux-xlnx/3.14/kernel-use-the-gnu89-standard-explicitly.patch b/recipes-kernel/linux/linux-xlnx/3.14/kernel-use-the-gnu89-standard-explicitly.patch new file mode 100644 index 00000000..9f7b3b8e --- /dev/null +++ b/recipes-kernel/linux/linux-xlnx/3.14/kernel-use-the-gnu89-standard-explicitly.patch @@ -0,0 +1,66 @@ +From: "Kirill A. Shutemov" <kirill@shutemov.name> +Date: Mon, 20 Oct 2014 12:23:12 +0300 +Subject: [PATCH] kernel: use the gnu89 standard explicitly + +Sasha Levin reports: + "gcc5 changes the default standard to c11, which makes kernel build + unhappy + + Explicitly define the kernel standard to be gnu89 which should keep + everything working exactly like it was before gcc5" + +There are multiple small issues with the new default, but the biggest +issue seems to be that the old - and very useful - GNU extension to +allow a cast in front of an initializer has gone away. + +Patch updated by Kirill: + "I'm pretty sure all gcc versions you can build kernel with supports + -std=gnu89. cc-option is redunrant. + + We also need to adjust HOSTCFLAGS otherwise allmodconfig fails for me" + +Note by Andrew Pinski: + "Yes it was reported and both problems relating to this extension has + been added to gnu99 and gnu11. Though there are other issues with the + kernel dealing with extern inline have different semantics between + gnu89 and gnu99/11" + +End result: we may be able to move up to a newer stdc model eventually, +but right now the newer models have some annoying deficiencies, so the +traditional "gnu89" model ends up being the preferred one. + +Signed-off-by: Sasha Levin <sasha.levin@oracle.com> +Singed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> +Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> +Upstream-Status: Backport [Minor merge conflict resolution] +--- + Makefile | 6 ++++-- + 1 file changed, 4 insertions(+), 2 deletions(-) + +diff --git a/Makefile b/Makefile +index b2f7de8..6af4c22 100644 +--- a/Makefile ++++ b/Makefile +@@ -244,7 +244,7 @@ CONFIG_SHELL := $(shell if [ -x "$$BASH" ]; then echo $$BASH; \ + + HOSTCC = gcc + HOSTCXX = g++ +-HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer ++HOSTCFLAGS = -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer -std=gnu89 + HOSTCXXFLAGS = -O2 + + # Decide whether to build built-in, modular, or both. +@@ -382,7 +382,9 @@ KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ + -fno-strict-aliasing -fno-common \ + -Werror-implicit-function-declaration \ + -Wno-format-security \ +- -fno-delete-null-pointer-checks ++ -fno-delete-null-pointer-checks \ ++ -std=gnu89 ++ + KBUILD_AFLAGS_KERNEL := + KBUILD_CFLAGS_KERNEL := + KBUILD_AFLAGS := -D__ASSEMBLY__ +-- +2.5.1 + |