path: root/arch/arm64/include
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authorAndreas Schwab <schwab@suse.de>2013-02-26 16:55:54 +0000
committerCatalin Marinas <catalin.marinas@arm.com>2013-03-18 10:42:16 +0000
commit18931c892724cb9408811c793fe2656d11573b3a (patch)
treef44ce6c4b70ed4f2b5ec71a4963da706388fec2e /arch/arm64/include
parenta2c91547b5b1b9ae515851a85b5574f205b8e1c4 (diff)
arm64: fix padding computation in struct ucontext
The expression to compute the padding needed to fill the uc_sigmask field to 1024 bits actually computes the padding needed for 1080 bits. Fortunately, due to the 16-byte alignment of the following field (uc_mcontext) the definition in glibc contains enough bytes of padding after uc_sigmask so that the overall offsets and size match in both definitions. Signed-off-by: Andreas Schwab <schwab@suse.de> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/include')
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/include/asm/ucontext.h b/arch/arm64/include/asm/ucontext.h
index bde96072089..42e04c87742 100644
--- a/arch/arm64/include/asm/ucontext.h
+++ b/arch/arm64/include/asm/ucontext.h
@@ -22,7 +22,7 @@ struct ucontext {
stack_t uc_stack;
sigset_t uc_sigmask;
/* glibc uses a 1024-bit sigset_t */
- __u8 __unused[(1024 - sizeof(sigset_t)) / 8];
+ __u8 __unused[1024 / 8 - sizeof(sigset_t)];
/* last for future expansion */
struct sigcontext uc_mcontext;