[PATCH] For broken exception handling in GDB on AIX platform

[Joel Brobecker]

Hello,

> I got some review comment from Bernhard Reutner-Fischer, and I have
> updated the patch accordingly.
> This patch is for bug opened
> here:https://sourceware.org/bugzilla/show_bug.cgi?id=21187

This patch has been identified as one of the desirable patches
to have for the GDB 8.0 release, for which we are hoping to create
the branch ASAP. Without this patch, it would be difficult for
users on AIX to build a functional debugger.

Would it be possible to help Nitish through the review and approval
process?

Here is a ChangeLog entry:

        * configure.ac: Add support for --disable-staticlib.
        * configure: Regenerate.

Can someone review the patch, please?

Thank you!


> 
> Please find the attachment below.
> 
> Thanks and Regards,
> Nitish K Mishra.

> diff --git a/configure.ac b/configure.ac
> index 3ec86c1..c400251 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -471,6 +471,13 @@ ENABLE_LIBSTDCXX=default)
>    noconfigdirs="$noconfigdirs target-libstdc++-v3"
>  fi]
>  
> +AC_ARG_ENABLE(staticlib,
> +AS_HELP_STRING([--disable-staticlib],
> +  [do not link libstdc++ and libgcc library statically, default is static linking]),
> +ENABLE_STATICLIB=$enableval,
> +ENABLE_STATICLIB=yes)
> +
> +
>  # If this is accelerator compiler and its target is intelmic we enable
>  # target liboffloadmic by default.  If this is compiler with offloading
>  # for intelmic we enable host liboffloadmic by default.  Otherwise
> @@ -1406,9 +1413,10 @@ if test -z "$LD"; then
>    fi
>  fi
>  
> -# Check whether -static-libstdc++ -static-libgcc is supported.
> +# If ENABLE_STATICLIB is set for configuration, check whether -static-libstdc++ -static-libgcc is supported
>  have_static_libs=no
> -if test "$GCC" = yes; then
> +if test "$ENABLE_STATICLIB" = yes; then
> + if test "$GCC" = yes; then
>    saved_LDFLAGS="$LDFLAGS"
>  
>    LDFLAGS="$LDFLAGS -static-libstdc++ -static-libgcc"
> @@ -1424,6 +1432,7 @@ int main() {}],
>    AC_LANG_POP(C++)
>  
>    LDFLAGS="$saved_LDFLAGS"
> + fi
>  fi
>  
>  ACX_PROG_GNAT
> @@ -1741,6 +1750,9 @@ AC_ARG_WITH(stage1-ldflags,
>   # trust that they are doing what they want.
>   if test "$stage1_libs" = "" -a "$have_static_libs" = yes; then
>     stage1_ldflags="-static-libstdc++ -static-libgcc"
> +   else
> +  # If static lib is disabled.
> +   stage1_ldflags=""
>   fi])
>  AC_SUBST(stage1_ldflags)
>  
> @@ -1768,8 +1780,11 @@ AC_ARG_WITH(boot-ldflags,
>   # In stages 2 and 3, default to linking libstdc++ and libgcc
>   # statically.  But if the user explicitly specified the libraries to
>   # use, trust that they are doing what they want.
> - if test "$poststage1_libs" = ""; then
> + if test "$poststage1_libs" = "" -a "$have_static_libs" = yes; then
>     poststage1_ldflags="-static-libstdc++ -static-libgcc"
> +   else
> +   # If static library linking is disabled.
> +   poststage1_ldflags=""
>   fi])
>  AC_SUBST(poststage1_ldflags)
>  


-- 
Joel