diff options
Diffstat (limited to 'arch/arm64/include/asm/compat.h')
-rw-r--r-- | arch/arm64/include/asm/compat.h | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/compat.h b/arch/arm64/include/asm/compat.h index 3fb053fa6e98..e74a629570da 100644 --- a/arch/arm64/include/asm/compat.h +++ b/arch/arm64/include/asm/compat.h @@ -76,6 +76,9 @@ struct compat_timeval { s32 tv_usec; }; +/* ILP32 uses 64bit time_t and not the above compat structures */ +#define COMPAT_USE_64BIT_TIME (!is_a32_compat_task()) + struct compat_stat { #ifdef __AARCH64EB__ short st_dev; @@ -215,6 +218,9 @@ typedef struct compat_siginfo { } _sifields; } compat_siginfo_t; +/* ILP32 uses the native siginfo and not the compat struct */ +#define COMPAT_USE_NATIVE_SIGINFO (!is_a32_compat_task()) + #define COMPAT_OFF_T_MAX 0x7fffffff #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL @@ -300,6 +306,16 @@ struct compat_shmid64_ds { compat_ulong_t __unused5; }; +#define COMPAT_ELF_HWCAP \ + (is_a32_compat_task() \ + ? compat_elf_hwcap \ + : elf_hwcap) + +#define COMPAT_ELF_HWCAP2 \ + (is_a32_compat_task() \ + ? compat_elf_hwcap2 \ + : 0) + static inline int is_compat_task(void) { return test_thread_flag(TIF_32BIT); @@ -318,5 +334,48 @@ static inline int is_compat_thread(struct thread_info *thread) } #endif /* CONFIG_COMPAT */ + +#ifdef CONFIG_AARCH32_EL0 +static inline int is_a32_compat_task(void) +{ + return test_thread_flag(TIF_AARCH32); +} +static inline int is_a32_compat_thread(struct thread_info *thread) +{ + return test_ti_thread_flag(thread, TIF_AARCH32); +} +#else +static inline int is_a32_compat_task(void) +{ + return 0; +} +static inline int is_a32_compat_thread(struct thread_info *thread) +{ + return 0; +} +#endif + +#ifdef CONFIG_ARM64_ILP32 +static inline int is_ilp32_compat_task(void) +{ + return test_thread_flag(TIF_32BIT) && !is_a32_compat_task(); +} +static inline int is_ilp32_compat_thread(struct thread_info *thread) +{ + return test_ti_thread_flag(thread, TIF_32BIT) && + !is_a32_compat_thread(thread); +} +#else +static inline int is_ilp32_compat_task(void) +{ + return 0; +} +static inline int is_ilp32_compat_thread(struct thread_info *thread) +{ + return 0; +} +#endif + + #endif /* __KERNEL__ */ #endif /* __ASM_COMPAT_H */ |