From 51b97e354ba9fce1890cf38ecc754aa49677fc89 Mon Sep 17 00:00:00 2001 From: "Kirill A. Shutemov" Date: Mon, 20 Oct 2014 12:23:12 +0300 Subject: 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 Singed-off-by: Kirill A. Shutemov Signed-off-by: Linus Torvalds --- Makefile | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'Makefile') diff --git a/Makefile b/Makefile index bc7eb6ada966..6e1b8e76dfb5 100644 --- a/Makefile +++ b/Makefile @@ -297,7 +297,7 @@ 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 ifeq ($(shell $(HOSTCC) -v 2>&1 | grep -c "clang version"), 1) @@ -401,7 +401,8 @@ KBUILD_CPPFLAGS := -D__KERNEL__ KBUILD_CFLAGS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \ -fno-strict-aliasing -fno-common \ -Werror-implicit-function-declaration \ - -Wno-format-security + -Wno-format-security \ + -std=gnu89 KBUILD_AFLAGS_KERNEL := KBUILD_CFLAGS_KERNEL := -- cgit v1.3-14-g43fede From fc14f9c1272f62c3e8d01300f52467c0d9af50f9 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 16 Nov 2014 16:36:20 -0800 Subject: Linux 3.18-rc5 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Makefile') diff --git a/Makefile b/Makefile index 6e1b8e76dfb5..00d618bbe8e7 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 18 SUBLEVEL = 0 -EXTRAVERSION = -rc4 +EXTRAVERSION = -rc5 NAME = Diseased Newt # *DOCUMENTATION* -- cgit v1.3-14-g43fede From 5d01410fe4d92081f349b013a2e7a95429e4f2c9 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 23 Nov 2014 15:25:20 -0800 Subject: Linux 3.18-rc6 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Makefile') diff --git a/Makefile b/Makefile index 00d618bbe8e7..2fd5c4e5c139 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 18 SUBLEVEL = 0 -EXTRAVERSION = -rc5 +EXTRAVERSION = -rc6 NAME = Diseased Newt # *DOCUMENTATION* -- cgit v1.3-14-g43fede From 009d0431c3914de64666bec0d350e54fdd59df6a Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sun, 30 Nov 2014 16:42:27 -0800 Subject: Linux 3.18-rc7 --- Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'Makefile') diff --git a/Makefile b/Makefile index 2fd5c4e5c139..ce70361f766e 100644 --- a/Makefile +++ b/Makefile @@ -1,7 +1,7 @@ VERSION = 3 PATCHLEVEL = 18 SUBLEVEL = 0 -EXTRAVERSION = -rc6 +EXTRAVERSION = -rc7 NAME = Diseased Newt # *DOCUMENTATION* -- cgit v1.3-14-g43fede