On 14 January 2015 at 16:13, Kugan <kugan.vivekanandara...@linaro.org> wrote: > On 14/01/15 21:24, Prathamesh Kulkarni wrote: >> On 14 January 2015 at 14:37, Richard Biener <rguent...@suse.de> wrote: >>> On Wed, 14 Jan 2015, Prathamesh Kulkarni wrote: >>> >>>> Hi, >>>> I am having an issue with placing includes of expr.h in gcc-plugin.h. >>>> rtl.h is required to be included before expr.h, so I put it in >>>> gcc-plugin.h. >>>> However the front-ends then fail to build because rtl.h is not allowed >>>> in front-ends, >>>> and the front-ends include gcc-plugin.h (via plugin.h). >>>> >>>> For instance ada/gcc-interface/misc.c failed to build with following error: >>>> In file included from ../../gcc/gcc/gcc-plugin.h:64:0, >>>> from ../../gcc/gcc/plugin.h:23, >>>> from ../../gcc/gcc/ada/gcc-interface/misc.c:53: >>>> ../../gcc/gcc/rtl.h:20:9: error: attempt to use poisoned "GCC_RTL_H" >>>> >>>> However rtl.h is required to be included before expr.h, so we cannot skip >>>> including rtl.h in gcc-plugin.h. How do we get around this ? >>>> As a temporary hack, could we #undef IN_GCC_FRONTEND in gcc-plugin.h ? >>>> java/builtins.c does this to include expr.h. >>> >>> Err - obviously nothing in GCC itself should include gcc-plugin.h, >>> only plugins should. Do we tell plugins that they should include >>> plugin.h?! Why is the include in there? >>> >>> I'd simply remove it.... >> That doesn't work. >> For instance removing plugin.h include from c/c-decl.h resulted in >> following build errors: >> ../../gcc/gcc/c/c-decl.c: In function \u2018void finish_decl(tree, >> location_t, tree, tree, tree)\u2019: >> ../../gcc/gcc/c/c-decl.c:4990:27: error: >> \u2018PLUGIN_FINISH_DECL\u2019 was not declared in this scope >> ../../gcc/gcc/c/c-decl.c:4990:51: error: >> \u2018invoke_plugin_callbacks\u2019 was not declared in this scope >> ../../gcc/gcc/c/c-decl.c: In function \u2018void finish_function()\u2019: >> ../../gcc/gcc/c/c-decl.c:9009:29: error: >> \u2018PLUGIN_PRE_GENERICIZE\u2019 was not declared in this scope >> ../../gcc/gcc/c/c-decl.c:9009:58: error: >> \u2018invoke_plugin_callbacks\u2019 was not declared in this scope >> make[3]: *** [c/c-decl.o] Error 1 >> make[2]: *** [all-stage1-gcc] Error 2 >> make[1]: *** [stage1-bubble] Error 2 >> make: *** [all] Error 2 >> >> Why do the front-ends require to include plugin.h ? > > > C/C++ Front-end seems to have callbacks to process declarations. Please > look at https://gcc.gnu.org/ml/gcc-patches/2010-04/msg00780.html which > added callback PLUGIN_FINISH_DECL. Thanks for pointing it out!
Regards, Prathamesh > > Thanks, > Kugan >
