On Thu, Aug 10, 2023 at 11:31 PM Joseph Myers <jos...@codesourcery.com> wrote: > > The GCC_ENABLE_PLUGINS configure logic for detecting whether -rdynamic > is necessary and supported uses an appropriate objdump for $host > binaries (running on $build) in cases where $host is $build or > $target. > > However, it is missing such logic in the case where $host is neither > $build nor $target, resulting in the compilers not being linked with > -rdynamic and plugins not being usable with such a compiler. In fact > $ac_cv_prog_OBJDUMP, as used when $build = $host, is always an objdump > for $host binaries that runs on $build; that is, it's appropriate to > use in this case as well. > > Tested in such a configuration that it does result in cc1 being linked > with -rdynamic as expected. Also bootstrapped with no regressions for > x86_64-pc-linux-gnu.
OK. > config/ > * gcc-plugin.m4 (GCC_ENABLE_PLUGINS): Use > export_sym_check="$ac_cv_prog_OBJDUMP -T" also when host is not > build or target. > > gcc/ > * configure: Regenerate. > > libcc1/ > * configure: Regenerate. > > diff --git a/config/gcc-plugin.m4 b/config/gcc-plugin.m4 > index c731a6fab38..c30cfdd8fad 100644 > --- a/config/gcc-plugin.m4 > +++ b/config/gcc-plugin.m4 > @@ -49,7 +49,7 @@ AC_DEFUN([GCC_ENABLE_PLUGINS], > elif test x$host = x$target; then > export_sym_check="$gcc_cv_objdump -T" > else > - export_sym_check= > + export_sym_check="$ac_cv_prog_OBJDUMP -T" > fi > ;; > esac > diff --git a/gcc/configure b/gcc/configure > index ea1ad6606a6..db5812d4a63 100755 > --- a/gcc/configure > +++ b/gcc/configure > @@ -31975,7 +31975,7 @@ fi > elif test x$host = x$target; then > export_sym_check="$gcc_cv_objdump -T" > else > - export_sym_check= > + export_sym_check="$ac_cv_prog_OBJDUMP -T" > fi > ;; > esac > diff --git a/libcc1/configure b/libcc1/configure > index 1a63a0e4e1a..2a914a0bfc8 100755 > --- a/libcc1/configure > +++ b/libcc1/configure > @@ -15120,7 +15120,7 @@ fi > elif test x$host = x$target; then > export_sym_check="$gcc_cv_objdump -T" > else > - export_sym_check= > + export_sym_check="$ac_cv_prog_OBJDUMP -T" > fi > ;; > esac > > -- > Joseph S. Myers > jos...@codesourcery.com
