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Re: [Qemu-devel] [PATCH] configure: Deal with OpenBSD/i386 emulation lin


From: Brad Smith
Subject: Re: [Qemu-devel] [PATCH] configure: Deal with OpenBSD/i386 emulation linker
Date: Tue, 7 Nov 2017 18:51:31 -0500
User-agent: Mutt/1.9.1 (2017-09-22)

On Mon, Nov 06, 2017 at 11:37:45AM +0000, Peter Maydell wrote:
> On 6 November 2017 at 00:53, Brad Smith <address@hidden> wrote:
> > OpenBSD/i386 uses elf_i386_obsd for the emulation linker.
> >
> > Signed-off-by: Brad Smith <address@hidden>
> >
> >
> > diff --git a/configure b/configure
> > index dd73cce62f..02799d38ac 100755
> > --- a/configure
> > +++ b/configure
> > @@ -5159,9 +5159,9 @@ if test \( "$cpu" = "i386" -o "$cpu" = "x86_64" \) -a 
> > \
> >          "$targetos" != "Darwin" -a "$targetos" != "SunOS" -a \
> >          "$softmmu" = yes ; then
> >      # Different host OS linkers have different ideas about the name of the 
> > ELF
> > -    # emulation. Linux and OpenBSD use 'elf_i386'; FreeBSD uses the _fbsd
> > -    # variant; and Windows uses i386pe.
> > -    for emu in elf_i386 elf_i386_fbsd i386pe; do
> > +    # emulation. Linux uses 'elf_i386'; FreeBSD uses the _fbsd variant;
> > +    # OpenBSD uses the _obsd variant; and Windows uses i386pe.
> > +    for emu in elf_i386 elf_i386_fbsd elf_i386_obsd i386pe; do
> >          if "$ld" -verbose 2>&1 | grep -q "^[[:space:]]*$emu[[:space:]]*$"; 
> > then
> >              ld_i386_emulation="$emu"
> >              roms="optionrom"
> 
> My OpenBSD/x86-64's ld supports both "elf_i386" and "elf_i386_obsd" --
> which should we be using in this case? With your change we'll
> still prefer elf_i386 if the linker handles both.

I sent a second rev of the diff with slightly tweaked comment.

OpenBSD/amd64 uses elf_i386. OpenBSD/i386 uses elf_i386_obsd.

> Do you know what the difference between the two is?

No.



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