diff options
Diffstat (limited to 'arch/arm64/kernel/entry32-common.S')
| -rw-r--r-- | arch/arm64/kernel/entry32-common.S | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/arch/arm64/kernel/entry32-common.S b/arch/arm64/kernel/entry32-common.S new file mode 100644 index 000000000000..2ad59126f8be --- /dev/null +++ b/arch/arm64/kernel/entry32-common.S @@ -0,0 +1,37 @@ +#include <linux/linkage.h> +#include <linux/const.h> + +#include <asm/assembler.h> +#include <asm/asm-offsets.h> +#include <asm/errno.h> +#include <asm/page.h> + +ENTRY(compat_sys_statfs64_wrapper) + mov w3, #84 + cmp w1, #88 + csel w1, w3, w1, eq + b compat_sys_statfs64 +ENDPROC(compat_sys_statfs64_wrapper) + +ENTRY(compat_sys_fstatfs64_wrapper) + mov w3, #84 + cmp w1, #88 + csel w1, w3, w1, eq + b compat_sys_fstatfs64 +ENDPROC(compat_sys_fstatfs64_wrapper) + +/* + * Note: off_4k (w5) is always in units of 4K. If we can't do the + * requested offset because it is not page-aligned, we return -EINVAL. + */ +ENTRY(compat_sys_mmap2_wrapper) +#if PAGE_SHIFT > 12 + tst w5, #~PAGE_MASK >> 12 + b.ne 1f + lsr w5, w5, #PAGE_SHIFT - 12 +#endif + b sys_mmap_pgoff +1: mov x0, #-EINVAL + ret +ENDPROC(compat_sys_mmap2_wrapper) + |