On Mon, 11 Dec 2006 15:26:26 +0530 "Amitabha Roy" <[EMAIL PROTECTED]> wrote:
> Emit a special VDSO_COOKIE for VDSO regions instead of simply marking > them as anon. Why? > Signed-off-by: Amitabha Roy <[EMAIL PROTECTED]> > --- > diff --git a/drivers/oprofile/buffer_sync.c b/drivers/oprofile/buffer_sync.c > index 78c2e6e..7f879db 100644 > --- a/drivers/oprofile/buffer_sync.c > +++ b/drivers/oprofile/buffer_sync.c > @@ -250,7 +250,14 @@ static unsigned long lookup_dcookie(stru > vma->vm_file->f_path.mnt); > *offset = (vma->vm_pgoff << PAGE_SHIFT) + addr - > vma->vm_start; > - } else { > + } > +#ifdef CONFIG_X86_32 > + else if(mm->context.vdso==vma->vm_start){ > + cookie = VDSO_COOKIE; > + *offset = addr; > + } > +#endif > + else { > /* must be an anonymous map */ > *offset = addr; > } > diff --git a/drivers/oprofile/event_buffer.h b/drivers/oprofile/event_buffer.h > index 9241627..edc8ee2 100644 > --- a/drivers/oprofile/event_buffer.h > +++ b/drivers/oprofile/event_buffer.h > @@ -35,6 +35,7 @@ #define CTX_TGID_CODE 7 > #define TRACE_BEGIN_CODE 8 > #define TRACE_END_CODE 9 > > +#define VDSO_COOKIE ~1UL > #define INVALID_COOKIE ~0UL > #define NO_COOKIE 0UL - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/