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Re: [Qemu-devel] [PATCH] Fix building with glibc < 2.4
From: |
Kirill A. Shutemov |
Subject: |
Re: [Qemu-devel] [PATCH] Fix building with glibc < 2.4 |
Date: |
Wed, 10 Dec 2008 14:07:57 +0200 |
User-agent: |
Mutt/1.5.18 (2008-10-30) |
On Wed, Dec 10, 2008 at 06:57:58AM -0500, Robert Reif wrote:
> Kirill A. Shutemov wrote:
> > Prior to version 2.4, glibc did not expose the definition of
> > MREMAP_FIXED, and the prototype for mremap() did not allow
> > for the new_address argument.
> >
> > Tested only with glibc 2.9.
> >
> > Signed-off-by: Kirill A. Shutemov <address@hidden>
> > ---
> > linux-user/mmap.c | 10 +++++++---
> > 1 files changed, 7 insertions(+), 3 deletions(-)
> >
> > diff --git a/linux-user/mmap.c b/linux-user/mmap.c
> > index 89254ae..b6dd184 100644
> > --- a/linux-user/mmap.c
> > +++ b/linux-user/mmap.c
> > @@ -24,6 +24,8 @@
> > #include <unistd.h>
> > #include <errno.h>
> > #include <sys/mman.h>
> > +#include <linux/mman.h>
> > +#include <linux/unistd.h>
> >
> > #include "qemu.h"
> > #include "qemu-common.h"
> > @@ -564,9 +566,11 @@ abi_long target_mremap(abi_ulong old_addr, abi_ulong
> > old_size,
> > if (mmap_start == -1) {
> > errno = ENOMEM;
> > host_addr = MAP_FAILED;
> > - } else
> > - host_addr = mremap(g2h(old_addr), old_size, new_size,
> > - flags | MREMAP_FIXED, g2h(mmap_start));
> > + } else {
> > + host_addr = (void *) syscall(__NR_mremap, g2h(old_addr),
> > + old_size, new_size, flags | MREMAP_FIXED,
> > + g2h(mmap_start));
> > + }
> > } else {
> > host_addr = mremap(g2h(old_addr), old_size, new_size, flags);
> > /* Check if address fits target address space */
> >
> This version compiles for me.
Thanks. I'll resend patch with your Sign-off.
--
Regards, Kirill A. Shutemov
+ Belarus, Minsk
+ ALT Linux Team, http://www.altlinux.org/
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