[PATCH 16/24] ARM64:ILP32 use the standard start_thread for ILP32 so the processor state is not AARCH32.
From: Andrew Pinski <hidden>
Date: 2014-05-24 07:09:29
Also in:
lkml
Subsystem:
arm64 port (aarch64 architecture), the rest · Maintainers:
Catalin Marinas, Will Deacon, Linus Torvalds
If we have both ILP32 and AARCH32 compiled in, we need use the non compat start thread for ILP32. We have to use TIF_32BIT_AARCH64 explicit due to header depency issues. Thanks, Andrew Pinski Signed-off-by: Andrew Pinski <redacted> --- arch/arm64/include/asm/processor.h | 9 +++++++++ 1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h
index ee487f3..c61deaf 100644
--- a/arch/arm64/include/asm/processor.h
+++ b/arch/arm64/include/asm/processor.h@@ -103,6 +103,15 @@ static inline void start_thread(struct pt_regs *regs, unsigned long pc, static inline void compat_start_thread(struct pt_regs *regs, unsigned long pc, unsigned long sp) { +#ifdef CONFIG_ARM64_ILP32 + /* ILP32 thread are started the same way as LP64 threads. + Note we cannot use is_ilp32_compat_task here as that + would introduce a header depency issue. */ + if (test_thread_flag(TIF_32BIT_AARCH64)) { + start_thread(regs, pc, sp); + return; + } +#endif start_thread_common(regs, pc); regs->pstate = COMPAT_PSR_MODE_USR; if (pc & 1)
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1.7.2.5