Commit c633090e authored Jan 26, 2007 by Roland McGrath Committed by Linus Torvalds Jan 26, 2007

[PATCH] x86_64 ia32 vDSO: define arch_vma_name

This patch makes x86_64 define arch_vma_name for CONFIG_IA32_EMULATION.  This
makes the ia32 vDSO mapping appear in /proc/PID/maps with "[vdso]" for ia32
processes, as it does on native i386.

Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

parent 3a0cfadb

arch/x86_64/ia32/syscall32.c

+8 −0

Original line number	Diff line number	Diff line
		@@ -82,6 +82,14 @@ int syscall32_setup_pages(struct linux_binprm *bprm, int exstack)
		return 0;
		}

		const char arch_vma_name(struct vm_area_struct vma)
		{
		if (vma->vm_start == VSYSCALL32_BASE &&
		vma->vm_mm && vma->vm_mm->task_size == IA32_PAGE_OFFSET)
		return "[vdso]";
		return NULL;
		}

		static int __init init_syscall32(void)
		{
		syscall32_page = (void *)get_zeroed_page(GFP_KERNEL);