The patch titled
Subject: ix86: fix vDSO build
has been added to the -mm tree. Its filename is
ix86-fix-vdso-build.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/ix86-fix-vdso-build.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/ix86-fix-vdso-build.patch
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------------------------------------------------------
From: "Jan Beulich" <JBeulich@xxxxxxxx>
Subject: ix86: fix vDSO build
Relying on static functions used just once to get inlined (and
subsequently have dead code paths eliminated) is wrong: Compilers are free
to decide whether they do this, regardless of optimization level. With
this not happening for vdso_addr() (observed with gcc 4.1.x), an
unresolved reference to align_vdso_addr() causes the build to fail.
Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
Cc: Andy Lutomirski <luto@xxxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Cc: "H. Peter Anvin" <hpa@xxxxxxxxx>
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Tested-by: Boris Ostrovsky <boris.ostrovsky@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86/vdso/vma.c | 4 ++++
1 file changed, 4 insertions(+)
diff -puN arch/x86/vdso/vma.c~ix86-fix-vdso-build arch/x86/vdso/vma.c
--- a/arch/x86/vdso/vma.c~ix86-fix-vdso-build
+++ a/arch/x86/vdso/vma.c
@@ -62,6 +62,9 @@ struct linux_binprm;
Only used for the 64-bit and x32 vdsos. */
static unsigned long vdso_addr(unsigned long start, unsigned len)
{
+#ifdef CONFIG_X86_32
+ return 0;
+#else
unsigned long addr, end;
unsigned offset;
end = (start + PMD_SIZE - 1) & PMD_MASK;
@@ -83,6 +86,7 @@ static unsigned long vdso_addr(unsigned
addr = align_vdso_addr(addr);
return addr;
+#endif
}
static int map_vdso(const struct vdso_image *image, bool calculate_addr)
_
Patches currently in -mm which might be from JBeulich@xxxxxxxx are
rtc-efi-check-for-invalid-data-coming-back-from-uefi.patch
initramfs-support-initramfs-that-is-bigger-than-2gib.patch
x86-64-fix-vdso-build.patch
ix86-fix-vdso-build.patch
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