[FFmpeg-devel] [PATCH 3/3] configure: Disable automatic image base calculation

[Hendrik Leppkes]

On Mon, Sep 21, 2015 at 6:41 AM, Alex Smith <alex.smith at warpsharp.info> wrote:
> From: Alex Smith <alex.smith at warpsharp.info>
>
> There's no reason for it.  ASLR will rebase it regardless so "preventing
> collisions" isn't really relevant.  This also brings it in line with
> what a msvc produced dll will have (an image base of 0x10000000).
>
> Signed-off-by: Alex Smith <alex.smith at warpsharp.info>
> ---
>  configure | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/configure b/configure
> index 0c60c03..a540ae7 100755
> --- a/configure
> +++ b/configure
> @@ -4386,7 +4386,7 @@ case $target_os in
>          SLIB_INSTALL_LINKS=
>          SLIB_INSTALL_EXTRA_SHLIB='$(SLIBNAME:$(SLIBSUF)=.lib)'
>          SLIB_INSTALL_EXTRA_LIB='lib$(SLIBNAME:$(SLIBSUF)=.dll.a) $(SLIBNAME_WITH_MAJOR:$(SLIBSUF)=.def)'
> -        SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--enable-auto-image-base'
> +        SHFLAGS='-shared -Wl,--output-def,$$(@:$(SLIBSUF)=.orig.def) -Wl,--out-implib,$(SUBDIR)lib$(SLIBNAME:$(SLIBSUF)=.dll.a) -Wl,--enable-runtime-pseudo-reloc -Wl,--disable-auto-image-base'
>          objformat="win32"
>          ranlib=:
>          enable dos_paths
> --
> 1.9.5.msysgit.0

LGTM, as it matches msvc afterwards.

- Hendrik