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| author | Roland McGrath <roland@redhat.com> | 2007-01-26 00:56:52 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-01-26 13:50:58 -0800 |
| commit | c633090e3105e779c97d4978e5e3d7d66b291cfb (patch) | |
| tree | b04c22f501460e051e044e3a06516540cda930f8 | |
| parent | 3a0cfadb42e0a6dd221aa49232a65d2771063285 (diff) | |
| download | linux-c633090e3105e779c97d4978e5e3d7d66b291cfb.tar.bz2 | |
[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>
| -rw-r--r-- | arch/x86_64/ia32/syscall32.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86_64/ia32/syscall32.c b/arch/x86_64/ia32/syscall32.c index 3ac935535e20..59f1fa155915 100644 --- a/arch/x86_64/ia32/syscall32.c +++ b/arch/x86_64/ia32/syscall32.c @@ -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); |