diff options
Diffstat (limited to 'arch/arm64/kernel/binfmt_elf32.c')
| -rw-r--r-- | arch/arm64/kernel/binfmt_elf32.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/arch/arm64/kernel/binfmt_elf32.c b/arch/arm64/kernel/binfmt_elf32.c new file mode 100644 index 000000000000..440fa84f62b3 --- /dev/null +++ b/arch/arm64/kernel/binfmt_elf32.c @@ -0,0 +1,35 @@ +// SPDX-License-Identifier: GPL-2.0+ + +/* + * Support for AArch32 Linux ELF binaries. + */ + +/* AArch32 EABI. */ +#define EF_ARM_EABI_MASK 0xff000000 + +#define compat_start_thread compat_start_thread +/* + * Unlike the native SET_PERSONALITY macro, the compat version inherits + * READ_IMPLIES_EXEC across a fork() since this is the behaviour on + * arch/arm/. + */ +#define COMPAT_SET_PERSONALITY(ex) \ +({ \ + clear_thread_flag(TIF_32BIT_AARCH64); \ + set_thread_flag(TIF_32BIT); \ +}) + +#define COMPAT_ARCH_DLINFO +#define COMPAT_ELF_HWCAP (compat_elf_hwcap) +#define COMPAT_ELF_HWCAP2 (compat_elf_hwcap2) + +#define compat_arch_setup_additional_pages \ + aarch32_setup_vectors_page + +/* AArch32 EABI. */ +#define compat_elf_check_arch(x) (system_supports_32bit_el0() && \ + ((x)->e_machine == EM_ARM) && \ + ((x)->e_flags & EF_ARM_EABI_MASK)) + + +#include "../../../fs/compat_binfmt_elf.c" |