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-rw-r--r--arch/arm64/include/asm/elf.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/arch/arm64/include/asm/elf.h b/arch/arm64/include/asm/elf.h
index 325d9515c0f8..3c7037c6ba9b 100644
--- a/arch/arm64/include/asm/elf.h
+++ b/arch/arm64/include/asm/elf.h
@@ -202,7 +202,21 @@ typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
({ \
set_thread_flag(TIF_32BIT); \
})
+#ifdef CONFIG_GENERIC_COMPAT_VDSO
+#define COMPAT_ARCH_DLINFO \
+do { \
+ /* \
+ * Note that we use Elf64_Off instead of elf_addr_t because \
+ * elf_addr_t in compat is defined as Elf32_Addr and casting \
+ * current->mm->context.vdso to it triggers a cast warning of \
+ * cast from pointer to integer of different size. \
+ */ \
+ NEW_AUX_ENT(AT_SYSINFO_EHDR, \
+ (Elf64_Off)current->mm->context.vdso); \
+} while (0)
+#else
#define COMPAT_ARCH_DLINFO
+#endif
extern int aarch32_setup_additional_pages(struct linux_binprm *bprm,
int uses_interp);
#define compat_arch_setup_additional_pages \