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From: Roland McGrath <roland@redhat.com>
To: Linus Torvalds <torvalds@osdl.org>, Andrew Morton <akpm@osdl.org>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 7/11] x86_64 ia32 vDSO: define arch_vma_name
Date: Sat, 13 Jan 2007 21:36:01 -0800 (PST)	[thread overview]
Message-ID: <20070114053601.34F4B1800E5@magilla.sf.frob.com> (raw)
In-Reply-To: Roland McGrath's message of  Saturday, 13 January 2007 21:31:39 -0800 <20070114053140.351701800E5@magilla.sf.frob.com>


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>
---
 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 3ac9355..59f1fa1 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_b
 	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); 

  parent reply	other threads:[~2007-01-14  5:36 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-14  5:31 [PATCH 1/11] Fix CONFIG_COMPAT_VDSO Roland McGrath
2007-01-14  5:33 ` [PATCH 2/11] Fix gate_vma.vm_flags Roland McGrath
2007-01-14  5:33 ` [PATCH 3/11] Add VM_ALWAYSDUMP Roland McGrath
2007-01-14  5:34 ` [PATCH 4/11] i386 vDSO: use VM_ALWAYSDUMP Roland McGrath
2007-01-23 19:48   ` Andrew Morton
2007-01-23 19:57     ` Linus Torvalds
2007-01-23 20:11       ` Roland McGrath
2007-01-23 19:57     ` Roland McGrath
2007-01-14  5:34 ` [PATCH 5/11] x86_64 ia32 " Roland McGrath
2007-01-14  5:35 ` [PATCH 6/11] powerpc " Roland McGrath
2007-01-14  5:36 ` Roland McGrath [this message]
2007-01-14  5:36 ` [PATCH 8/11] Add install_special_mapping Roland McGrath
2007-01-14  5:36 ` [PATCH 9/11] i386 vDSO: use install_special_mapping Roland McGrath
2007-01-14  5:37 ` [PATCH 10/11] x86_64 ia32 " Roland McGrath
2007-01-14  5:37 ` [PATCH 11/11] powerpc " Roland McGrath
2007-01-17  8:49 ` [PATCH 1/11] Fix CONFIG_COMPAT_VDSO Ingo Molnar
2007-01-17  9:03   ` Roland McGrath
2007-01-24 10:25     ` Paul Mundt

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