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authorGravatar Oleksandr G Zhadan <oleks@arcturusnetworks.com>2017-07-13 12:38:17 -0400
committerGravatar Thomas Petazzoni <thomas.petazzoni@free-electrons.com>2017-07-15 10:14:59 +0200
commit0aa8612dc4bf76c9f0a58d17ee0ac68b583c0838 (patch)
tree83e072bab1052f540b90b86b807fa0824e1c1748 /board
parent972e55b7db7947ee6c7ce5c0e5ac486df29b7710 (diff)
downloadbuildroot-0aa8612dc4bf76c9f0a58d17ee0ac68b583c0838.tar.gz
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board/arcturus/ppc-ucp1020: add patch to fix build with gcc 6.x.
This commit adds a Linux kernel patch to solve a build failure with the arcturus_ucp1020_defconfig with gcc 6.x: arch/powerpc/kernel/ptrace.c:407:24: warning: index 32 denotes an offset greater than size of 'u64[32][1] {aka long long unsigned int[32][1]}' [-Warray-bounds] offsetof(struct thread_fp_state, fpr[32][0])); ^ The patch is upstream in Linux, and can be dropped when arcturus_ucp1020_defconfig is updated to use a new Linux kernel version. Signed-off-by: Oleksandr Zhadan <oleks@arcturusnetworks.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Diffstat (limited to 'board')
-rw-r--r--board/arcturus/ppc-ucp1020/patches/linux/0003-powerpc-ptrace-Fix-out-of-bounds-array-access-warning.patch53
1 files changed, 53 insertions, 0 deletions
diff --git a/board/arcturus/ppc-ucp1020/patches/linux/0003-powerpc-ptrace-Fix-out-of-bounds-array-access-warning.patch b/board/arcturus/ppc-ucp1020/patches/linux/0003-powerpc-ptrace-Fix-out-of-bounds-array-access-warning.patch
new file mode 100644
index 0000000000..aac15a121c
--- /dev/null
+++ b/board/arcturus/ppc-ucp1020/patches/linux/0003-powerpc-ptrace-Fix-out-of-bounds-array-access-warning.patch
@@ -0,0 +1,53 @@
+From 35b7ce4f8f290794d3b89db7461e8c568b5defa1 Mon Sep 17 00:00:00 2001
+From: Khem Raj <raj.khem@gmail.com>
+Date: Mon, 25 Apr 2016 09:19:17 -0700
+Subject: powerpc/ptrace: Fix out of bounds array access warning
+
+commit 1e407ee3b21f981140491d5b8a36422979ca246f upstream.
+
+gcc-6 correctly warns about a out of bounds access
+
+arch/powerpc/kernel/ptrace.c:407:24: warning: index 32 denotes an offset greater than size of 'u64[32][1] {aka long long unsigned int[32][1]}' [-Warray-bounds]
+ offsetof(struct thread_fp_state, fpr[32][0]));
+ ^
+
+check the end of array instead of beginning of next element to fix this
+
+Signed-off-by: Khem Raj <raj.khem@gmail.com>
+Cc: Kees Cook <keescook@chromium.org>
+Cc: Michael Ellerman <mpe@ellerman.id.au>
+Cc: Segher Boessenkool <segher@kernel.crashing.org>
+Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
+Acked-by: Olof Johansson <olof@lixom.net>
+Cc: Arnd Bergmann <arnd@arndb.de>
+Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Signed-off-by: Oleksandr Zhadan <oleks@arcturusnetworks.com>
+---
+ arch/powerpc/kernel/ptrace.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
+index f21897b..93f200f 100644
+--- a/arch/powerpc/kernel/ptrace.c
++++ b/arch/powerpc/kernel/ptrace.c
+@@ -376,7 +376,7 @@ static int fpr_get(struct task_struct *target, const struct user_regset *regset,
+
+ #else
+ BUILD_BUG_ON(offsetof(struct thread_fp_state, fpscr) !=
+- offsetof(struct thread_fp_state, fpr[32][0]));
++ offsetof(struct thread_fp_state, fpr[32]));
+
+ return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+ &target->thread.fp_state, 0, -1);
+@@ -404,7 +404,7 @@ static int fpr_set(struct task_struct *target, const struct user_regset *regset,
+ return 0;
+ #else
+ BUILD_BUG_ON(offsetof(struct thread_fp_state, fpscr) !=
+- offsetof(struct thread_fp_state, fpr[32][0]));
++ offsetof(struct thread_fp_state, fpr[32]));
+
+ return user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+ &target->thread.fp_state, 0, -1);
+--
+cgit v1.1