BBB: enable kernel to build with gcc5

Change-Id: Iee04165267b5aa8e0056abb1b8210eb1789ba669
Reviewed-by: Teemu Holappa <teemu.holappa@theqtcompany.com>

5 files changed, 289 insertions, 1 deletions

diff --git a/conf/distro/include/beaglebone.conf b/conf/distro/include/beaglebone.conf
index 8a2c3e2..c034200 100644
--- a/conf/distro/include/beaglebone.conf
+++ b/conf/distro/include/beaglebone.conf
@@ -40,7 +40,7 @@ PREFERRED_VERSION_omap3-sgx-modules = "4.10.00.01"
 PREFERRED_PROVIDER_virtual/egl = "libgles-omap3"
 PREFERRED_PROVIDER_virtual/libgles2 = "libgles-omap3"
 
-PREFERRED_PROVIDER_u-boot = "u-boot"
+PREFERRED_PROVIDER_u-boot = "u-boot-ti-staging"
 EXTRA_IMAGEDEPENDS_remove = "u-boot-denx"
 UBOOT_MACHINE = "am335x_boneblack_config"
 KERNEL_IMAGETYPE = "zImage"
diff --git a/meta-beagleboard-extras/recipes/linux/linux-mainline/0001-ARM-8158-1-LLVMLinux-use-static-inline-in-ARM-ftrace.patch b/meta-beagleboard-extras/recipes/linux/linux-mainline/0001-ARM-8158-1-LLVMLinux-use-static-inline-in-ARM-ftrace.patch
new file mode 100644
index 0000000..ee61a74
--- /dev/null
+++ b/meta-beagleboard-extras/recipes/linux/linux-mainline/0001-ARM-8158-1-LLVMLinux-use-static-inline-in-ARM-ftrace.patch
@@ -0,0 +1,52 @@
+From ef372125fd64fc181869be4cf528488f9e8b46c2 Mon Sep 17 00:00:00 2001
+From: Behan Webster <behanw@converseincode.com>
+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 <behanw@converseincode.com>
+Reviewed-by: Mark Charlebois <charlebm@gmail.com>
+Acked-by: Steven Rostedt <rostedt@goodmis.org>
+Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
+---
+ 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 fafedd8..f6aa84d 100644
+--- 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);
+-- 
+1.9.1
+
diff --git a/meta-beagleboard-extras/recipes/linux/linux-mainline/0001-Change-extern-inline-to-static-inline.patch b/meta-beagleboard-extras/recipes/linux/linux-mainline/0001-Change-extern-inline-to-static-inline.patch
new file mode 100644
index 0000000..66f031f
--- /dev/null
+++ b/meta-beagleboard-extras/recipes/linux/linux-mainline/0001-Change-extern-inline-to-static-inline.patch
@@ -0,0 +1,133 @@
+From 0873625fb43dda5a54919b7414f235cdfdd98ddc Mon Sep 17 00:00:00 2001
+From: Samuli Piippo <samuli.piippo@theqtcompany.com>
+Date: Wed, 13 Apr 2016 15:42:49 +0300
+Subject: [PATCH] Change "extern inline" to "static inline"
+
+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). "static inline" is the correct choice
+instead.
+---
+ drivers/staging/rtl8192u/ieee80211/ieee80211.h | 10 +++++-----
+ drivers/staging/rtl8712/ieee80211.h            |  4 ++--
+ lib/mpi/mpi-inline.h                           |  2 +-
+ lib/mpi/mpi-internal.h                         | 16 ++++++++--------
+ 4 files changed, 16 insertions(+), 16 deletions(-)
+
+diff --git a/drivers/staging/rtl8192u/ieee80211/ieee80211.h b/drivers/staging/rtl8192u/ieee80211/ieee80211.h
+index 502bfdb..1c8d026 100644
+--- a/drivers/staging/rtl8192u/ieee80211/ieee80211.h
++++ b/drivers/staging/rtl8192u/ieee80211/ieee80211.h
+@@ -2254,7 +2254,7 @@ static inline void *ieee80211_priv(struct net_device *dev)
+        return ((struct ieee80211_device *)netdev_priv(dev))->priv;
+ }
+ 
+-extern inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
++static inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
+ {
+        /* Single white space is for Linksys APs */
+        if (essid_len == 1 && essid[0] == ' ')
+@@ -2270,7 +2270,7 @@ extern inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
+        return 1;
+ }
+ 
+-extern inline int ieee80211_is_valid_mode(struct ieee80211_device *ieee, int mode)
++static inline int ieee80211_is_valid_mode(struct ieee80211_device *ieee, int mode)
+ {
+        /*
+         * It is possible for both access points and our device to support
+@@ -2296,7 +2296,7 @@ extern inline int ieee80211_is_valid_mode(struct ieee80211_device *ieee, int mod
+        return 0;
+ }
+ 
+-extern inline int ieee80211_get_hdrlen(u16 fc)
++static inline int ieee80211_get_hdrlen(u16 fc)
+ {
+        int hdrlen = IEEE80211_3ADDR_LEN;
+ 
+@@ -2582,12 +2582,12 @@ void ieee80211_softmac_scan_syncro(struct ieee80211_device *ieee);
+ 
+ extern const long ieee80211_wlan_frequencies[];
+ 
+-extern inline void ieee80211_increment_scans(struct ieee80211_device *ieee)
++static inline void ieee80211_increment_scans(struct ieee80211_device *ieee)
+ {
+        ieee->scans++;
+ }
+ 
+-extern inline int ieee80211_get_scans(struct ieee80211_device *ieee)
++static inline int ieee80211_get_scans(struct ieee80211_device *ieee)
+ {
+        return ieee->scans;
+ }
+diff --git a/drivers/staging/rtl8712/ieee80211.h b/drivers/staging/rtl8712/ieee80211.h
+index 21515c3..7518061 100644
+--- a/drivers/staging/rtl8712/ieee80211.h
++++ b/drivers/staging/rtl8712/ieee80211.h
+@@ -734,7 +734,7 @@ enum ieee80211_state {
+ #define IEEE_G            (1<<2)
+ #define IEEE_MODE_MASK    (IEEE_A|IEEE_B|IEEE_G)
+ 
+-extern inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
++static inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
+ {
+        /* Single white space is for Linksys APs */
+        if (essid_len == 1 && essid[0] == ' ')
+@@ -748,7 +748,7 @@ extern inline int ieee80211_is_empty_essid(const char *essid, int essid_len)
+        return 1;
+ }
+ 
+-extern inline int ieee80211_get_hdrlen(u16 fc)
++static inline int ieee80211_get_hdrlen(u16 fc)
+ {
+        int hdrlen = 24;
+ 
+diff --git a/lib/mpi/mpi-inline.h b/lib/mpi/mpi-inline.h
+index e2b3985..c245ea3 100644
+--- a/lib/mpi/mpi-inline.h
++++ b/lib/mpi/mpi-inline.h
+@@ -30,7 +30,7 @@
+ #define G10_MPI_INLINE_H
+ 
+ #ifndef G10_MPI_INLINE_DECL
+-#define G10_MPI_INLINE_DECL  extern inline
++#define G10_MPI_INLINE_DECL  static inline
+ #endif
+ 
+ G10_MPI_INLINE_DECL mpi_limb_t
+diff --git a/lib/mpi/mpi-internal.h b/lib/mpi/mpi-internal.h
+index 77adcf6..4566d11 100644
+--- a/lib/mpi/mpi-internal.h
++++ b/lib/mpi/mpi-internal.h
+@@ -172,20 +172,20 @@ void mpi_rshift_limbs(MPI a, unsigned int count);
+ int mpi_lshift_limbs(MPI a, unsigned int count);
+ 
+ /*-- mpihelp-add.c --*/
+-mpi_limb_t mpihelp_add_1(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr,
+-                        mpi_size_t s1_size, mpi_limb_t s2_limb);
++//mpi_limb_t mpihelp_add_1(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr,
++//                      mpi_size_t s1_size, mpi_limb_t s2_limb);
+ mpi_limb_t mpihelp_add_n(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr,
+                         mpi_ptr_t s2_ptr, mpi_size_t size);
+-mpi_limb_t mpihelp_add(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr, mpi_size_t s1_size,
+-                      mpi_ptr_t s2_ptr, mpi_size_t s2_size);
++//mpi_limb_t mpihelp_add(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr, mpi_size_t s1_size,
++//                    mpi_ptr_t s2_ptr, mpi_size_t s2_size);
+ 
+ /*-- mpihelp-sub.c --*/
+-mpi_limb_t mpihelp_sub_1(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr,
+-                        mpi_size_t s1_size, mpi_limb_t s2_limb);
++//mpi_limb_t mpihelp_sub_1(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr,
++//                      mpi_size_t s1_size, mpi_limb_t s2_limb);
+ mpi_limb_t mpihelp_sub_n(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr,
+                         mpi_ptr_t s2_ptr, mpi_size_t size);
+-mpi_limb_t mpihelp_sub(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr, mpi_size_t s1_size,
+-                      mpi_ptr_t s2_ptr, mpi_size_t s2_size);
++//mpi_limb_t mpihelp_sub(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr, mpi_size_t s1_size,
++//                    mpi_ptr_t s2_ptr, mpi_size_t s2_size);
+ 
+ /*-- mpihelp-cmp.c --*/
+ int mpihelp_cmp(mpi_ptr_t op1_ptr, mpi_ptr_t op2_ptr, mpi_size_t size);
+-- 
+1.9.1
+
diff --git a/meta-beagleboard-extras/recipes/linux/linux-mainline/0001-kernel-add-support-for-gcc-5.patch b/meta-beagleboard-extras/recipes/linux/linux-mainline/0001-kernel-add-support-for-gcc-5.patch
new file mode 100644
index 0000000..13a89fb
--- /dev/null
+++ b/meta-beagleboard-extras/recipes/linux/linux-mainline/0001-kernel-add-support-for-gcc-5.patch
@@ -0,0 +1,99 @@
+From 376075b9598d602950b73cc78743735585c0a18c Mon Sep 17 00:00:00 2001
+From: Sasha Levin <sasha.levin@oracle.com>
+Date: Mon, 13 Oct 2014 15:51:05 -0700
+Subject: [PATCH] kernel: add support for gcc 5
+
+commit 71458cfc782eafe4b27656e078d379a34e472adf upstream.
+
+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 <sasha.levin@oracle.com>
+Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
+Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ 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 <linux/compiler-gcc5.h> directly, include <linux/compiler.h> 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 */
+-- 
+1.9.1
+
diff --git a/meta-beagleboard-extras/recipes/linux/linux-mainline_3.8.bbappend b/meta-beagleboard-extras/recipes/linux/linux-mainline_3.8.bbappend
index a945ea8..0e6d423 100644
--- a/meta-beagleboard-extras/recipes/linux/linux-mainline_3.8.bbappend
+++ b/meta-beagleboard-extras/recipes/linux/linux-mainline_3.8.bbappend
@@ -26,6 +26,9 @@ SRC_URI += "\
     file://0003-video-da8xx-fb-Add-API-to-register-wait-for-vsync-ca.patch \
     file://ARM-perf-add-support-for-perf-registers-API.diff \
     file://ARM-perf-wire-up-perf_regs-and-unwind-support-for-AR.patch \
+    file://0001-ARM-8158-1-LLVMLinux-use-static-inline-in-ARM-ftrace.patch \
+    file://0001-kernel-add-support-for-gcc-5.patch \
+    file://0001-Change-extern-inline-to-static-inline.patch \
     "
 
 INSANE_SKIP_${PN} = "installed-vs-shipped"
@@ -37,4 +40,5 @@ do_configure_prepend() {
         -e '/CONFIG_USB_FUNCTIONFS_RNDIS=/d' \
         -i ${WORKDIR}/defconfig
     echo "CONFIG_FHANDLE=y"  >> ${WORKDIR}/defconfig
+    echo "CONFIG_MOUSE_PS2=n"  >> ${WORKDIR}/defconfig
 }