[PATCH 10/18] arm64: ilp32: introduce binfmt_ilp32.c

binfmt_ilp32.c is needed to handle ILP32 binaries

Signed-off-by: Yury Norov <redacted>
Signed-off-by: Bamvor Zhang Jian <redacted>
---
 arch/arm64/include/asm/elf.h     |  6 +++
 arch/arm64/kernel/Makefile       |  1 +
 arch/arm64/kernel/binfmt_ilp32.c | 97 ++++++++++++++++++++++++++++++++++++++++
 3 files changed, 104 insertions(+)
 create mode 100644 arch/arm64/kernel/binfmt_ilp32.c

diff --git a/arch/arm64/include/asm/elf.h b/arch/arm64/include/asm/elf.h
index f259fe8..be29dde 100644
--- a/arch/arm64/include/asm/elf.h
+++ b/arch/arm64/include/asm/elf.h

@@ -175,10 +175,16 @@ extern int arch_setup_additional_pages(struct linux_binprm *bprm,
 
 #define COMPAT_ELF_ET_DYN_BASE		(2 * TASK_SIZE_32 / 3)
 
+#ifndef USE_AARCH64_GREG
 /* AArch32 registers. */
 #define COMPAT_ELF_NGREG		18
 typedef unsigned int			compat_elf_greg_t;
 typedef compat_elf_greg_t		compat_elf_gregset_t[COMPAT_ELF_NGREG];
+#else /* AArch64 registers for AARCH64/ILP32 */
+#define COMPAT_ELF_NGREG	ELF_NGREG
+#define compat_elf_greg_t	elf_greg_t
+#define compat_elf_gregset_t	elf_gregset_t
+#endif