A speciality of the RTEMS build system was the make preinstall step. It
copied header files from arbitrary locations into the build tree. The
header files were included via the -Bsome/build/tree/path GCC command
line option.
This has at least seven problems:
* The make preinstall step itself needs time and disk space.
* Errors in header files show up in the build tree copy. This makes it
hard for editors to open the right file to fix the error.
* There is no clear relationship between source and build tree header
files. This makes an audit of the build process difficult.
* The visibility of all header files in the build tree makes it
difficult to enforce API barriers. For example it is discouraged to
use BSP-specifics in the cpukit.
* An introduction of a new build system is difficult.
* Include paths specified by the -B option are system headers. This
may suppress warnings.
* The parallel build had sporadic failures on some hosts.
This patch removes the make preinstall step. All installed header
files are moved to dedicated include directories in the source tree.
Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc,
etc. Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g.
erc32, imx, qoriq, etc.
The new cpukit include directories are:
* cpukit/include
* cpukit/score/cpu/@RTEMS_CPU@/include
* cpukit/libnetworking
The new BSP include directories are:
* bsps/include
* bsps/@RTEMS_CPU@/include
* bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include
There are build tree include directories for generated files.
The include directory order favours the most general header file, e.g.
it is not possible to override general header files via the include path
order.
The "bootstrap -p" option was removed. The new "bootstrap -H" option
should be used to regenerate the "headers.am" files.
Update #3254.
Compiling dumpbuf.c causes the following warning to be issued:
warning: pointer targets in passing argument 1 of 'snprintf' differ in signedness [-Wpointer-sign]
This happens because line_buffer is declared as unsigned.
Closes#2411.
Script does what is expected and tries to do it as
smartly as possible.
+ remove occurrences of two blank comment lines
next to each other after Id string line removed.
+ remove entire comment blocks which only exited to
contain CVS Ids
+ If the processing left a blank line at the top of
a file, it was removed.
* configure.ac: Add check for weak function attribute.
Remove AM_CONDITIONAL([RTEMS_LIBSHELL].
Add AM_CONDITIONAL(LIBSHELL), AM_CONDITIONAL(LIBSERDBG).
* capture/Makefile.am: Use *.a instead of *-tmp.a.
* cpuuse/Makefile.am: Use *.a instead of *-tmp.a.
* devnull/Makefile.am: Use *.a instead of *-tmp.a.
* dummy/Makefile.am: Use *.a instead of *-tmp.a.
* dumpbuf/Makefile.am: Use *.a instead of *-tmp.a.
* monitor/Makefile.am: Use *.a instead of *-tmp.a.
* mw-fb/Makefile.am: Use *.a instead of *-tmp.a.
* rtmonuse/Makefile.am: Use *.a instead of *-tmp.a.
* serdbg/Makefile.am: Use *.a instead of *-tmp.a.
Build iff LIBSERDBG is true.
* shell/Makefile.am: Use *.a instead of *-tmp.a.
Build iff LIBSHELL is true.
* stackchk/Makefile.am: Use *.a instead of *-tmp.a.
* untar/Makefile.am: Use *.a instead of *-tmp.a.
* wrapup/Makefile.am: Reflect changes above.
* capture/Makefile.am: Don't include @RTEMS_BSP@.cfg.
* cpuuse/Makefile.am: Don't include @RTEMS_BSP@.cfg.
* devnull/Makefile.am: Don't include @RTEMS_BSP@.cfg.
* dummy/Makefile.am: Don't include @RTEMS_BSP@.cfg.
* dumpbuf/Makefile.am: Don't include @RTEMS_BSP@.cfg.
* monitor/Makefile.am: Don't include @RTEMS_BSP@.cfg.
* mw-fb/Makefile.am: Don't include @RTEMS_BSP@.cfg.
* rtmonuse/Makefile.am: Don't include @RTEMS_BSP@.cfg.
* serdbg/Makefile.am: Don't include @RTEMS_BSP@.cfg.
* shell/Makefile.am: Don't include @RTEMS_BSP@.cfg.
* stackchk/Makefile.am: Don't include @RTEMS_BSP@.cfg.
* untar/Makefile.am: Don't include @RTEMS_BSP@.cfg.
* wrapup/Makefile.am: Don't include @RTEMS_BSP@.cfg.
* capture/Makefile.am: Use .$(OBJEXT) instead of .o.
* cpuuse/Makefile.am: Use .$(OBJEXT) instead of .o.
* devnull/Makefile.am: Use .$(OBJEXT) instead of .o.
* dummy/Makefile.am: Use .$(OBJEXT) instead of .o.
* dumpbuf/Makefile.am: Use .$(OBJEXT) instead of .o.
* monitor/Makefile.am: Use .$(OBJEXT) instead of .o.
* mw-fb/Makefile.am: Use .$(OBJEXT) instead of .o.
* rtmonuse/Makefile.am: Use .$(OBJEXT) instead of .o.
* serdbg/Makefile.am: Use .$(OBJEXT) instead of .o.
* shell/Makefile.am: Use .$(OBJEXT) instead of .o.
* stackchk/Makefile.am: Use .$(OBJEXT) instead of .o.
* untar/Makefile.am: Use .$(OBJEXT) instead of .o.
* untar/Makefile.am: Use 'PREINSTALL_FILES ='.
* monitor/Makefile.am: Use 'PREINSTALL_FILES ='.
* shell/Makefile.am: Use 'PREINSTALL_FILES ='.
* devnull/Makefile.am: Use 'PREINSTALL_FILES ='.
* dumpbuf/Makefile.am: Use 'PREINSTALL_FILES ='.
* mw-fb/Makefile.am: Use 'PREINSTALL_FILES ='.
* stackchk/Makefile.am: Use 'PREINSTALL_FILES ='.
* rtmonuse/Makefile.am: Use 'PREINSTALL_FILES ='.
* cpuuse/Makefile.am: Use 'PREINSTALL_FILES ='.
* rootfs/Makefile.am: Use 'PREINSTALL_FILES ='.
Ralf Corsepius <corsepiu@faw.uni-ulm.de> that contain:
* Modifications, (minor) corrections, cleanups to most existing
Makefile.ams
* Adds automake support to all remaining BSPs which have not yet been
converted to automake.
* Makefile.am for all remaining wrapup/Makefile.ams
.. a major configuration cleanup
... major enhancement of automake support.
... and it contains a *major* breakthough:
Automake support for libchip and libmisc *LEAF* directories.
To implement this I have used several nasty tricks
* The basical trick is to wrap an old Makefile.in's contents into a
Makefile.am and still continue to use (i.e include) the old
*.cfg files.
* Replaced each INSTALL_IF_CHANGE and INSTALL_VARIANT with make
dependencies
* Add a gnu-make ifdef AUTOMAKE to main.cfg to avoid conflicts between
automake and RTEMS make rules
* Replaced each install:: and preinstall:: rule with make dependencies
* Replaced SUB_DIRS with SUBDIRS in all Makefile.ins (Automake
convention)
* Removed each manually added autoconf substitution which automake
performs automatically.
This is not yet full automake support, because using the temporary
installation directory, preinstallation in general and building variants
are in contradiction to automake's basic working principles ...
... the new Makefile.ams work still somewhat clumsy
... nevertheless they work (quite well).
WARNING:
At first glance this patch is small, but
* it affects the whole configuration system.
* it opens the road to introducing automake to all Makefile.ins
currently not being under automake control.
JOEL> Does this remove or add any files?
Both, all Makefile.ins below libchip and libmisc get replaced with
Makefile.ams.
