From: Peter Korsgaard Date: Mon, 28 Nov 2016 21:01:02 +0000 (+0100) Subject: roseapplepi: add kernel patches to fix linux build issues with gcc 5 X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e920e521ac012e5f40720290341d8abceb41a6a6;p=buildroot.git roseapplepi: add kernel patches to fix linux build issues with gcc 5 Backport 2 patches from upstream (from 3.18-rc1) for gcc 5.x support and a patch from Marco Franceschetti (https://github.com/vonfritz/kernel/) to fix gcc 5.x compat issues in the bsp wifi drivers. Signed-off-by: Peter Korsgaard --- diff --git a/board/roseapplepi/patches/linux/0002-kernel-add-support-for-gcc-5.patch b/board/roseapplepi/patches/linux/0002-kernel-add-support-for-gcc-5.patch new file mode 100644 index 0000000000..8d3c703e3a --- /dev/null +++ b/board/roseapplepi/patches/linux/0002-kernel-add-support-for-gcc-5.patch @@ -0,0 +1,99 @@ +From 96b4fb75d15be65edc5494579e4a944534042f99 Mon Sep 17 00:00:00 2001 +From: Sasha Levin +Date: Mon, 13 Oct 2014 15:51:05 -0700 +Subject: [PATCH] kernel: add support for gcc 5 + +We're missing include/linux/compiler-gcc5.h which is required now +because gcc branched off to v5 in trunk. + +Just copy the relevant bits out of include/linux/compiler-gcc4.h, +no new code is added as of now. + +This fixes a build error when using gcc 5. + +Signed-off-by: Sasha Levin +Cc: +Signed-off-by: Andrew Morton +Signed-off-by: Linus Torvalds +(cherry picked from commit 71458cfc782eafe4b27656e078d379a34e472adf) +Signed-off-by: Peter Korsgaard +--- + include/linux/compiler-gcc5.h | 66 +++++++++++++++++++++++++++++++++++++++++++ + 1 file changed, 66 insertions(+) + create mode 100644 include/linux/compiler-gcc5.h + +diff --git a/include/linux/compiler-gcc5.h b/include/linux/compiler-gcc5.h +new file mode 100644 +index 0000000..cdd1cc2 +--- /dev/null ++++ b/include/linux/compiler-gcc5.h +@@ -0,0 +1,66 @@ ++#ifndef __LINUX_COMPILER_H ++#error "Please don't include directly, include instead." ++#endif ++ ++#define __used __attribute__((__used__)) ++#define __must_check __attribute__((warn_unused_result)) ++#define __compiler_offsetof(a, b) __builtin_offsetof(a, b) ++ ++/* Mark functions as cold. gcc will assume any path leading to a call ++ to them will be unlikely. This means a lot of manual unlikely()s ++ are unnecessary now for any paths leading to the usual suspects ++ like BUG(), printk(), panic() etc. [but let's keep them for now for ++ older compilers] ++ ++ Early snapshots of gcc 4.3 don't support this and we can't detect this ++ in the preprocessor, but we can live with this because they're unreleased. ++ Maketime probing would be overkill here. ++ ++ gcc also has a __attribute__((__hot__)) to move hot functions into ++ a special section, but I don't see any sense in this right now in ++ the kernel context */ ++#define __cold __attribute__((__cold__)) ++ ++#define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__) ++ ++#ifndef __CHECKER__ ++# define __compiletime_warning(message) __attribute__((warning(message))) ++# define __compiletime_error(message) __attribute__((error(message))) ++#endif /* __CHECKER__ */ ++ ++/* ++ * Mark a position in code as unreachable. This can be used to ++ * suppress control flow warnings after asm blocks that transfer ++ * control elsewhere. ++ * ++ * Early snapshots of gcc 4.5 don't support this and we can't detect ++ * this in the preprocessor, but we can live with this because they're ++ * unreleased. Really, we need to have autoconf for the kernel. ++ */ ++#define unreachable() __builtin_unreachable() ++ ++/* Mark a function definition as prohibited from being cloned. */ ++#define __noclone __attribute__((__noclone__)) ++ ++/* ++ * Tell the optimizer that something else uses this function or variable. ++ */ ++#define __visible __attribute__((externally_visible)) ++ ++/* ++ * GCC 'asm goto' miscompiles certain code sequences: ++ * ++ * http://gcc.gnu.org/bugzilla/show_bug.cgi?id=58670 ++ * ++ * Work it around via a compiler barrier quirk suggested by Jakub Jelinek. ++ * Fixed in GCC 4.8.2 and later versions. ++ * ++ * (asm goto is automatically volatile - the naming reflects this.) ++ */ ++#define asm_volatile_goto(x...) do { asm goto(x); asm (""); } while (0) ++ ++#ifdef CONFIG_ARCH_USE_BUILTIN_BSWAP ++#define __HAVE_BUILTIN_BSWAP32__ ++#define __HAVE_BUILTIN_BSWAP64__ ++#define __HAVE_BUILTIN_BSWAP16__ ++#endif /* CONFIG_ARCH_USE_BUILTIN_BSWAP */ +-- +2.10.2 + diff --git a/board/roseapplepi/patches/linux/0003-ARM-8158-1-LLVMLinux-use-static-inline-in-ARM-ftrace.patch b/board/roseapplepi/patches/linux/0003-ARM-8158-1-LLVMLinux-use-static-inline-in-ARM-ftrace.patch new file mode 100644 index 0000000000..da38f26679 --- /dev/null +++ b/board/roseapplepi/patches/linux/0003-ARM-8158-1-LLVMLinux-use-static-inline-in-ARM-ftrace.patch @@ -0,0 +1,54 @@ +From 8ac9a3f6dbf00d861134bea3f2c930defed6311a Mon Sep 17 00:00:00 2001 +From: Behan Webster +Date: Wed, 24 Sep 2014 01:06:46 +0100 +Subject: [PATCH] ARM: 8158/1: LLVMLinux: use static inline in ARM ftrace.h + +With compilers which follow the C99 standard (like modern versions of gcc and +clang), "extern inline" does the wrong thing (emits code for an externally +linkable version of the inline function). In this case using static inline +and removing the NULL version of return_address in return_address.c does +the right thing. + +Signed-off-by: Behan Webster +Reviewed-by: Mark Charlebois +Acked-by: Steven Rostedt +Signed-off-by: Russell King +(cherry picked from commit aeea3592a13bf12861943e44fc48f1f270941f8d) +Signed-off-by: Peter Korsgaard +--- + arch/arm/include/asm/ftrace.h | 2 +- + arch/arm/kernel/return_address.c | 5 ----- + 2 files changed, 1 insertion(+), 6 deletions(-) + +diff --git a/arch/arm/include/asm/ftrace.h b/arch/arm/include/asm/ftrace.h +index f89515a..2bb8cac 100644 +--- a/arch/arm/include/asm/ftrace.h ++++ b/arch/arm/include/asm/ftrace.h +@@ -45,7 +45,7 @@ void *return_address(unsigned int); + + #else + +-extern inline void *return_address(unsigned int level) ++static inline void *return_address(unsigned int level) + { + return NULL; + } +diff --git a/arch/arm/kernel/return_address.c b/arch/arm/kernel/return_address.c +index 2f8f523..a3b587f 100755 +--- a/arch/arm/kernel/return_address.c ++++ b/arch/arm/kernel/return_address.c +@@ -63,11 +63,6 @@ void *return_address(unsigned int level) + //#warning "TODO: return_address should use unwind tables" + //#endif + +-void *return_address(unsigned int level) +-{ +- return NULL; +-} +- + #endif /* if defined(CONFIG_FRAME_POINTER) && !defined(CONFIG_ARM_UNWIND) / else */ + + EXPORT_SYMBOL_GPL(return_address); +-- +2.10.2 + diff --git a/board/roseapplepi/patches/linux/0004-Fix-compile-errors-with-gcc5.patch b/board/roseapplepi/patches/linux/0004-Fix-compile-errors-with-gcc5.patch new file mode 100644 index 0000000000..d76e2851b5 --- /dev/null +++ b/board/roseapplepi/patches/linux/0004-Fix-compile-errors-with-gcc5.patch @@ -0,0 +1,121 @@ +From ef34609395c72a1e777ef9c3fb6ce60aa92976bb Mon Sep 17 00:00:00 2001 +From: Marco Franceschetti +Date: Sun, 13 Mar 2016 09:44:54 +0100 +Subject: [PATCH] Fix compile errors with gcc5 + +(cherry picked from commit e824d45043efd49607f66c89c921b07c1523bf9e) +Signed-off-by: Peter Korsgaard +--- + drivers/net/wireless/actions/rtl8188etv/include/ieee80211.h | 6 +++--- + drivers/net/wireless/actions/rtl8723bs/include/ieee80211.h | 6 +++--- + drivers/net/wireless/actions/rtl8723bs_vq0/include/ieee80211.h | 6 +++--- + drivers/net/wireless/actions/rtl8723bu/include/ieee80211.h | 6 +++--- + 4 files changed, 12 insertions(+), 12 deletions(-) + +diff --git a/drivers/net/wireless/actions/rtl8188etv/include/ieee80211.h b/drivers/net/wireless/actions/rtl8188etv/include/ieee80211.h +index fc293c4..0898cd4 100755 +--- a/drivers/net/wireless/actions/rtl8188etv/include/ieee80211.h ++++ b/drivers/net/wireless/actions/rtl8188etv/include/ieee80211.h +@@ -1314,18 +1314,18 @@ enum ieee80211_state { + (((Addr[2]) & 0xff) == 0xff) && (((Addr[3]) & 0xff) == 0xff) && (((Addr[4]) & 0xff) == 0xff) && \ + (((Addr[5]) & 0xff) == 0xff)) + #else +-extern __inline int is_multicast_mac_addr(const u8 *addr) ++static __inline int is_multicast_mac_addr(const u8 *addr) + { + return ((addr[0] != 0xff) && (0x01 & addr[0])); + } + +-extern __inline int is_broadcast_mac_addr(const u8 *addr) ++static __inline int is_broadcast_mac_addr(const u8 *addr) + { + return ((addr[0] == 0xff) && (addr[1] == 0xff) && (addr[2] == 0xff) && \ + (addr[3] == 0xff) && (addr[4] == 0xff) && (addr[5] == 0xff)); + } + +-extern __inline int is_zero_mac_addr(const u8 *addr) ++static __inline int is_zero_mac_addr(const u8 *addr) + { + return ((addr[0] == 0x00) && (addr[1] == 0x00) && (addr[2] == 0x00) && \ + (addr[3] == 0x00) && (addr[4] == 0x00) && (addr[5] == 0x00)); +diff --git a/drivers/net/wireless/actions/rtl8723bs/include/ieee80211.h b/drivers/net/wireless/actions/rtl8723bs/include/ieee80211.h +index 09475ef..56e0f5a 100755 +--- a/drivers/net/wireless/actions/rtl8723bs/include/ieee80211.h ++++ b/drivers/net/wireless/actions/rtl8723bs/include/ieee80211.h +@@ -1318,18 +1318,18 @@ enum ieee80211_state { + (((Addr[2]) & 0xff) == 0xff) && (((Addr[3]) & 0xff) == 0xff) && (((Addr[4]) & 0xff) == 0xff) && \ + (((Addr[5]) & 0xff) == 0xff)) + #else +-extern __inline int is_multicast_mac_addr(const u8 *addr) ++static __inline int is_multicast_mac_addr(const u8 *addr) + { + return ((addr[0] != 0xff) && (0x01 & addr[0])); + } + +-extern __inline int is_broadcast_mac_addr(const u8 *addr) ++static __inline int is_broadcast_mac_addr(const u8 *addr) + { + return ((addr[0] == 0xff) && (addr[1] == 0xff) && (addr[2] == 0xff) && \ + (addr[3] == 0xff) && (addr[4] == 0xff) && (addr[5] == 0xff)); + } + +-extern __inline int is_zero_mac_addr(const u8 *addr) ++static __inline int is_zero_mac_addr(const u8 *addr) + { + return ((addr[0] == 0x00) && (addr[1] == 0x00) && (addr[2] == 0x00) && \ + (addr[3] == 0x00) && (addr[4] == 0x00) && (addr[5] == 0x00)); +diff --git a/drivers/net/wireless/actions/rtl8723bs_vq0/include/ieee80211.h b/drivers/net/wireless/actions/rtl8723bs_vq0/include/ieee80211.h +index 5dfc421..95144b6 100755 +--- a/drivers/net/wireless/actions/rtl8723bs_vq0/include/ieee80211.h ++++ b/drivers/net/wireless/actions/rtl8723bs_vq0/include/ieee80211.h +@@ -1314,18 +1314,18 @@ enum ieee80211_state { + (((Addr[2]) & 0xff) == 0xff) && (((Addr[3]) & 0xff) == 0xff) && (((Addr[4]) & 0xff) == 0xff) && \ + (((Addr[5]) & 0xff) == 0xff)) + #else +-extern __inline int is_multicast_mac_addr(const u8 *addr) ++static __inline int is_multicast_mac_addr(const u8 *addr) + { + return ((addr[0] != 0xff) && (0x01 & addr[0])); + } + +-extern __inline int is_broadcast_mac_addr(const u8 *addr) ++static __inline int is_broadcast_mac_addr(const u8 *addr) + { + return ((addr[0] == 0xff) && (addr[1] == 0xff) && (addr[2] == 0xff) && \ + (addr[3] == 0xff) && (addr[4] == 0xff) && (addr[5] == 0xff)); + } + +-extern __inline int is_zero_mac_addr(const u8 *addr) ++static __inline int is_zero_mac_addr(const u8 *addr) + { + return ((addr[0] == 0x00) && (addr[1] == 0x00) && (addr[2] == 0x00) && \ + (addr[3] == 0x00) && (addr[4] == 0x00) && (addr[5] == 0x00)); +diff --git a/drivers/net/wireless/actions/rtl8723bu/include/ieee80211.h b/drivers/net/wireless/actions/rtl8723bu/include/ieee80211.h +index 09475ef..56e0f5a 100755 +--- a/drivers/net/wireless/actions/rtl8723bu/include/ieee80211.h ++++ b/drivers/net/wireless/actions/rtl8723bu/include/ieee80211.h +@@ -1318,18 +1318,18 @@ enum ieee80211_state { + (((Addr[2]) & 0xff) == 0xff) && (((Addr[3]) & 0xff) == 0xff) && (((Addr[4]) & 0xff) == 0xff) && \ + (((Addr[5]) & 0xff) == 0xff)) + #else +-extern __inline int is_multicast_mac_addr(const u8 *addr) ++static __inline int is_multicast_mac_addr(const u8 *addr) + { + return ((addr[0] != 0xff) && (0x01 & addr[0])); + } + +-extern __inline int is_broadcast_mac_addr(const u8 *addr) ++static __inline int is_broadcast_mac_addr(const u8 *addr) + { + return ((addr[0] == 0xff) && (addr[1] == 0xff) && (addr[2] == 0xff) && \ + (addr[3] == 0xff) && (addr[4] == 0xff) && (addr[5] == 0xff)); + } + +-extern __inline int is_zero_mac_addr(const u8 *addr) ++static __inline int is_zero_mac_addr(const u8 *addr) + { + return ((addr[0] == 0x00) && (addr[1] == 0x00) && (addr[2] == 0x00) && \ + (addr[3] == 0x00) && (addr[4] == 0x00) && (addr[5] == 0x00)); +-- +2.10.2 +