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author | Joel Sherrill <joel.sherrill@OARcorp.com> | 1999-12-01 15:05:26 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 1999-12-01 15:05:26 +0000 |
commit | 955a9ba74c6f0e5ad3787d149c56bc90c22ee045 (patch) | |
tree | d2ac7086a3620c021e8da794e69e1cf5bbd00795 /c/src/exec/score/cpu/mips/Makefile.am | |
parent | Patch rtems-rc-19991123-rc-2.diff from Ralf Corsepius (diff) | |
download | rtems-955a9ba74c6f0e5ad3787d149c56bc90c22ee045.tar.bz2 |
Patch rtems-rc-19991123-rc-2.diff from Ralf Corsepius
<corsepiu@faw.uni-ulm.de> which implements automake support for some
score/cpu/<RTEMS_CPU> subdirectories and fixes a few minor configuration
bugs.
To apply:
rm -rf c/src/exec/score/cpu/a29k/wrap
rm -rf c/src/exec/score/cpu/hppa1.1/wrap
rm -rf c/src/exec/score/cpu/i386/wrap
rm -rf c/src/exec/score/cpu/mips64orion/wrap
rm -rf c/src/exec/score/cpu/no_cpu/wrap
patch -p1 < rtems-rc-19991123-rc-2.diff.gz
Notes:
* I don't see a possiblity to convert the powerpc subdirectory in its
current layout to automake the time being.
* Besides the fact that this subdirectory is not in single-tree building
layout, the actual showstopper is the ifeq $(RTEMS_CPU_MODEL),mpc750)
gmake-conditional in powerpc/Makefile.in, which automake (correctly)
refuses to handle.
* The problem is *not* specific to the powerpc. Other CPUs basically
have similar problems (SH:sh7032 vs sh7045, SPARC: erc32.h in
score/cpu/sparc), but have been lucky to get around real issues (cf.
configuration files below score/cpu/sh/).
* From a configuration focused POV this problem boils down to a
file/subdirectory selection problem:
ppc: 1 or others
sh: 1 out of 2
sparc: 1 out of 1
Automake's means to implement such behavior is using conditionals to be
evaluated at configuration-time. The old configuration scheme however
used make-time conditionals. The SH port was lucky to get around this
issue because it applies a selection from a limited set of possible
selections, the powerpc however applies a selection from an unlimited
set, based on data not being available at configuration time.
* Currently I only see two general solutions:
1) make RTEMS_CPU_MODEL available at configuration time, ie. replace
make-time configuration by configuration-time configuration
2) Perform the selection at build-time, i.e. always install all files,
but use #ifdef #else #endif in source files. This is what the m68k has
exploited at other locations inside of the source-tree.
=> This directory is the last one remaining not using automake below the
whole exec/ hierarchy.
Diffstat (limited to '')
-rw-r--r-- | c/src/exec/score/cpu/mips/Makefile.am | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/c/src/exec/score/cpu/mips/Makefile.am b/c/src/exec/score/cpu/mips/Makefile.am new file mode 100644 index 0000000000..2909324c08 --- /dev/null +++ b/c/src/exec/score/cpu/mips/Makefile.am @@ -0,0 +1,53 @@ +## +## $Id$ +## + +AUTOMAKE_OPTIONS = foreign 1.4 +ACLOCAL_AMFLAGS = -I $(RTEMS_TOPdir)/aclocal + +include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg +include $(top_srcdir)/../../../../../../automake/lib.am + +SUBDIRS = rtems + +# C source names +C_FILES = cpu.c +C_O_FILES = $(C_FILES:%.c=${ARCH}/%.o) + +H_FILES = asm.h cpu_asm.h idtcpu.h idtmon.h iregdef.h +noinst_HEADERS = $(H_FILES) + +# S source names +S_FILES = cpu_asm.S +S_O_FILES = $(S_FILES:%.S=${ARCH}/%.o) + +PREINSTALL_FILES = \ +$(PROJECT_INCLUDE) \ +$(H_FILES:%=$(PROJECT_INCLUDE)/%) + +$(PROJECT_INCLUDE): + $(mkinstalldirs) $@ + +$(PROJECT_INCLUDE)/%.h: %.h + $(INSTALL_DATA) $< $@ + +TMPINSTALL_FILES += \ +$(PROJECT_RELEASE)/lib/rtems$(LIB_VARIANT).o + +$(PROJECT_RELEASE)/lib/rtems$(LIB_VARIANT).o: $(ARCH)/rtems.o + $(INSTALL_DATA) $< $@ + +REL = $(ARCH)/rtems-cpu.rel + +$(REL): $(C_O_FILES) $(S_O_FILES) + $(make-rel) + +all-local: $(ARCH) $(ARCH)/rtems.o $(REL) $(TMPINSTALL_FILES) + +EXTRA_DIST = \ +cpu.c \ +cpu_asm.S \ +rtems.c + +include $(top_srcdir)/../../../../../../automake/subdirs.am +include $(top_srcdir)/../../../../../../automake/local.am |