From ec150c7e09071bcf51bfaa8071fe23efb6df69f7 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Mon, 12 Aug 2019 07:23:31 +0200 Subject: include: Make headers more self-contained MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Back in 2016, we discussed[1] rules for headers, and these were generally liked: 1. Have a carefully curated header that's included everywhere first. We got that already thanks to Peter: osdep.h. 2. Headers should normally include everything they need beyond osdep.h. If exceptions are needed for some reason, they must be documented in the header. If all that's needed from a header is typedefs, put those into qemu/typedefs.h instead of including the header. 3. Cyclic inclusion is forbidden. This patch gets include/ closer to obeying 2. It's actually extracted from my "[RFC] Baby steps towards saner headers" series[2], which demonstrates a possible path towards checking 2 automatically. It passes the RFC test there. [1] Message-ID: <87h9g8j57d.fsf@blackfin.pond.sub.org> https://lists.nongnu.org/archive/html/qemu-devel/2016-03/msg03345.html [2] Message-Id: <20190711122827.18970-1-armbru@redhat.com> https://lists.nongnu.org/archive/html/qemu-devel/2019-07/msg02715.html Signed-off-by: Markus Armbruster Reviewed-by: Alistair Francis Message-Id: <20190812052359.30071-2-armbru@redhat.com> Tested-by: Philippe Mathieu-Daudé --- include/hw/block/fdc.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/hw/block/fdc.h') diff --git a/include/hw/block/fdc.h b/include/hw/block/fdc.h index 8cece84..f4fe2f4 100644 --- a/include/hw/block/fdc.h +++ b/include/hw/block/fdc.h @@ -1,6 +1,8 @@ #ifndef HW_FDC_H #define HW_FDC_H +#include "exec/hwaddr.h" +#include "hw/irq.h" #include "qapi/qapi-types-block.h" /* fdc.c */ -- cgit v1.1 From 64552b6be4758d3a774f7787b294543ccebd5358 Mon Sep 17 00:00:00 2001 From: Markus Armbruster Date: Mon, 12 Aug 2019 07:23:42 +0200 Subject: Include hw/irq.h a lot less MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit In my "build everything" tree, changing hw/irq.h triggers a recompile of some 5400 out of 6600 objects (not counting tests and objects that don't depend on qemu/osdep.h). hw/hw.h supposedly includes it for convenience. Several other headers include it just to get qemu_irq and.or qemu_irq_handler. Move the qemu_irq and qemu_irq_handler typedefs from hw/irq.h to qemu/typedefs.h, and then include hw/irq.h only where it's still needed. Touching it now recompiles only some 500 objects. Signed-off-by: Markus Armbruster Reviewed-by: Alistair Francis Reviewed-by: Philippe Mathieu-Daudé Tested-by: Philippe Mathieu-Daudé Message-Id: <20190812052359.30071-13-armbru@redhat.com> --- include/hw/block/fdc.h | 1 - 1 file changed, 1 deletion(-) (limited to 'include/hw/block/fdc.h') diff --git a/include/hw/block/fdc.h b/include/hw/block/fdc.h index f4fe2f4..c15ff4c 100644 --- a/include/hw/block/fdc.h +++ b/include/hw/block/fdc.h @@ -2,7 +2,6 @@ #define HW_FDC_H #include "exec/hwaddr.h" -#include "hw/irq.h" #include "qapi/qapi-types-block.h" /* fdc.c */ -- cgit v1.1