Implement arch_vma_name() and make get_gate_vma(),
in_gate_area() and in_gate_area_no_mm() a nop.
We need arch_vma_name() to support vDSO.
Signed-off-by: Richard Weinberger <rich...@nod.at>
---
arch/um/sys-x86_64/asm/elf.h | 1 +
arch/um/sys-x86_64/mem.c | 22 ++++++++++++++++++++++
2 files changed, 23 insertions(+), 0 deletions(-)
diff --git a/arch/um/sys-x86_64/asm/elf.h b/arch/um/sys-x86_64/asm/elf.h
index d6d5af3..74eb0ac 100644
--- a/arch/um/sys-x86_64/asm/elf.h
+++ b/arch/um/sys-x86_64/asm/elf.h
@@ -119,4 +119,5 @@ extern long elf_aux_hwcap;
#define SET_PERSONALITY(ex) do ; while(0)
+#define __HAVE_ARCH_GATE_AREA 1
#endif
diff --git a/arch/um/sys-x86_64/mem.c b/arch/um/sys-x86_64/mem.c
index 3f8df8a..055cea0 100644
--- a/arch/um/sys-x86_64/mem.c
+++ b/arch/um/sys-x86_64/mem.c
@@ -14,3 +14,25 @@ unsigned long vm_data_default_flags =
__VM_DATA_DEFAULT_FLAGS;
unsigned long vm_data_default_flags32 = __VM_DATA_DEFAULT_FLAGS;
unsigned long vm_force_exec32 = PROT_EXEC;
+const char *arch_vma_name(struct vm_area_struct *vma)
+{
+ if (vma->vm_mm && vma->vm_start == um_vdso_addr)
+ return "[vdso]";
+
+ return NULL;
+}
+
+struct vm_area_struct *get_gate_vma(struct mm_struct *mm)
+{
+ return NULL;
+}
+
+int in_gate_area(struct mm_struct *mm, unsigned long addr)
+{
+ return 0;
+}
+
+int in_gate_area_no_mm(unsigned long addr)
+{
+ return 0;
+}
--
1.7.6
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