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arm64: ptrace: make structure padding explicit for debug registers

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The user_hwdebug_state structure contains implicit padding to conform to
the alignment requirements of the AArch64 ABI (namely that aggregates
must be aligned to their most aligned member).

This patch fixes the ptrace functions operating on struct
user_hwdebug_state so that the padding is handled correctly.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
This commit is contained in:
Will Deacon
2012-10-11 12:10:57 +01:00
committed by Catalin Marinas
parent 16dd46bb78
commit 7797d17c59
2 changed files with 32 additions and 7 deletions
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3
arch/arm64/include/uapi/asm/ptrace.h
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@@ -79,13 +79,14 @@ struct user_fpsimd_state {
struct user_hwdebug_state {
__u32 dbg_info;
__u32 pad;
struct {
__u64 addr;
__u32 ctrl;
__u32 pad;
} dbg_regs[16];
};
#endif /* __ASSEMBLY__ */
#endif /* _UAPI__ASM_PTRACE_H */