Set PSTATE.E for compatible binaries when using 64-bit BE kernel
Signed-off-by: Ankit Jindal ankit.jindal@linaro.org Signed-off-by: Tushar Jagad tushar.jagad@linaro.org --- arch/arm64/include/asm/processor.h | 3 +++ arch/arm64/kernel/signal32.c | 4 ++++ 2 files changed, 7 insertions(+)
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h index ab239b2..d72f5c0 100644 --- a/arch/arm64/include/asm/processor.h +++ b/arch/arm64/include/asm/processor.h @@ -107,6 +107,9 @@ static inline void compat_start_thread(struct pt_regs *regs, unsigned long pc, regs->pstate = COMPAT_PSR_MODE_USR; if (pc & 1) regs->pstate |= COMPAT_PSR_T_BIT; +#ifdef CONFIG_CPU_BIG_ENDIAN + regs->pstate |= COMPAT_PSR_E_BIT; +#endif regs->compat_sp = sp; } #endif diff --git a/arch/arm64/kernel/signal32.c b/arch/arm64/kernel/signal32.c index e393174..8f5b72e 100644 --- a/arch/arm64/kernel/signal32.c +++ b/arch/arm64/kernel/signal32.c @@ -481,6 +481,10 @@ static void compat_setup_return(struct pt_regs *regs, struct k_sigaction *ka, spsr &= ~COMPAT_PSR_T_BIT; }
+#ifdef CONFIG_CPU_BIG_ENDIAN + spsr |= COMPAT_PSR_E_BIT; +#endif + if (ka->sa.sa_flags & SA_RESTORER) { retcode = ptr_to_compat(ka->sa.sa_restorer); } else {