forked from Imagelibrary/rtems
98100d275f
made no attempt to divide the comments up and place them with just
the appropriate files. Here is an excerpt from Ralf's email:
Changes including comments on changes I made after cycling through
all the targets:
* Added ranlib support. Now all targets use "ranlib" instead of "ar -s"
to build an index for a library. If ranlib isn't detected during
configuration, check if ar -s is working and try "ar -s" instead of
* Removed $(XXX_FOR_TARGET) from make/target.cfg.in, use $(XXX) instead now.
* gcc-target-default.cfg: LINK_XXXX-defines reworked to solve the -l
problem under posix (cf gcc-target-default.cfg)
* rtems-glom replaced by Makefile-rules inside of the wrapup/Makefile.in
that has been using rtems-glom until now.
* Removed CCC and friends in gcc-target-default.cfg, as they have been
breaking CXX support.
* Removed CONFIG.$(TARGET_ARCH).CC lines from several custom/*.cfg
files, because this is now set in custom/default.cfg.
* Added aclocal/ar-s.m4, check whether "ar -s" is working
* Added aclocal/cygwin.m4 and aclocal/exeext.m4.
* Reworked aclocal/canonicalize-tools.m4: Added ar -s check; fixes for
problems when XXX_FOR_TARGET is given via environment variables (didn't
work for gcc until now), adding cygwin check, improved autoconf-cache
handling.
* Removed -l from make rule dependencies. LINK_LIBS is now allowed to
contain -L and -l. LINK_OBJS and LINK_FILES must not contain -L or -l.
gcc28 make-exe rules now link using $(LINK_OBJS) $(LINK_LIBS) => Almost
all custom/*.cfg are modified. This is very likely to break something
because of typos or having missed to edit a file.
Open problems, known bugs, things I didn't do:
* custom/p4000.cfg seems to be out of date and requires to be reviewed.
(JRS NOTE: It is subordinate p4650 and p4600 -- both of which build ok
after minor changes.)
* custom/psim.cfg needs to be reviewed, I added some changes to it, I am
insecure about.
(JRS NOTE: psim had a minor problem endif/endef swapped but runs fine.)
* rtems-glom.in can now be removed.
* gcc*.cfg files "make depend" rules don't honor language specific flags
(e.g CXXFLAGS is ignored for *.cc) - Nothing to worry about now, but may
cause problems for hosts/targets not using gcc or rtems-add-ons that use
external packages.
* AFAIS, the no_bsp BSP can't be build anymore, i.e. configure refused
to configure for it whatever I tried.
* The toplevel and toplevel+1 README files are quite out-dated
* cygwin.m4 isn't of much use for rtems. In most cases (cf.
aclocal/*.m4) it is worked around by directly using $host_os. I think
I'll remove it soon after the next snapshot
* Before release the cygwin patch needs to be tested under cygwin. I may
have broken/missed something (esp. the sed-pattern to convert \\ into /
may be broken).
* You should try to build/run the posix-BSP under solaris - I don't
expect problems, but I am not 100% sure, esp. with regard to ranlib/ar -s.
* You should consider to convert all make/compilers/*.cfg files into
make/compilers/*.cfg.in files and let autoconf generate the *.cfg. This
may help getting rid of some if/then/else statements and help
hard-coding some defines into those files in future and shouldn't
disturb now.
* Not having installed libc.a/libm.a on a host may still break building
rtems, esp. when using -disable-gcc28 as the gcc27-configuration scheme
directly accesses libc.a and libm.a. The problem should not appear when
using gcc28 because it references libc/libm only through -lc and -lm
which may be static or dynamic (I didn't test this).
* shgen is not yet included (I didn't yet have enough time to integrate it).
* I know about a few more configure-probs (esp. cross-checking
--enable-* flags).
+ warn/refuse to configure when --enable-libcdir and
--enable-gcc28 are given.
+ force --enable-libcdir when --disable-gcc28 is given
* Replaced KSHELL with @KSH@ in some shell scripts generated by configure.in.
* Added a dependency to aclocal/*.m4 in the toplevel Makefile => configure
and aclocal.m4 will now be rebuild when any aclocal/*.m4 file is changed
* Some changes to aclocal/gcc-pipe.m4 and aclocal/gcc-specs.m4
* Replaced i[[3456]]86-unknown-freebsd2.[[12]] with i[[3456]]86-*freebsd2.*
in configure.in, as I suppose there might exist a variety of valid vendors
(2nd field of the name-tripple)
* Disabled override MAKEFLAGS in toplevel Makefile.in - Potential
side-effects are not really clear to me.
* In mvme162.cfg, $(LINK_LIBS) is missing in the CC line in gcc28's make-exe
rule (yet another one I missed to edit). Just append $(LINK_LIBS) to
the "CC" line, like I hopefully did to ALL other custom/*.cfg files.
* the problem with mvme162lx.cfg is a follow-up problem of the
mvme162.cfg-bug.
* mvme162/console and idp/console had variables named Buffer which
conflicted with similarly named variables in some tests.
294 lines
7.3 KiB
INI
294 lines
7.3 KiB
INI
#
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# $Id$
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#
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# gcc 2.6.x compiler for a "native" nocpu/nobsp system
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# Compiler (and tools) configuration
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#
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# Prefix on the installed GNU tools
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# Just use the native tools
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GNU_TOOLS_PREFIX=
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# Additional target names (other than debug, profile)
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TARGET_VARIANTS +=
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#
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# Pre-processor defines using the target options header file.
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#
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# Local tailoring (on the command line) can be done by setting XCFLAGS
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# or XCPPFLAGS -- neither of which are never set in the Makefile's
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#
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CPPFLAGS=$(CFLAGS) $(XCPPFLAGS) $(DEFINES)
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CPLUS_CPPFLAGS=$(CFLAGS) $(XCPPFLAGS) $(DEFINES)
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# This section makes the target dependent options file.
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# NDEBUG (C library)
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# if defined asserts do not generate code. This is commonly used
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# as a command line option.
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#
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# RTEMS_TEST_NO_PAUSE (RTEMS tests)
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# do not pause between screens of output in the rtems tests
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#
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# NO_TABLE_MOVE (SPARC PORT)
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# do not have a second trap table -- use the BSP's
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#
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# STACK_CHECKER_ON (RTEMS support code)
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# If defined, stack bounds checking is enabled.
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#
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# RTEMS_DEBUG (RTEMS)
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# If defined, debug checks in RTEMS and support library code are enabled.
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define make-target-options
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echo "/* #define NDEBUG 1 */ " >>$@
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echo "#define RTEMS_TEST_NO_PAUSE 1" >>$@
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echo "/* #define STACK_CHECKER_ON 1 */" >>$@
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echo "/* #define RTEMS_DEBUG 1 */" >>$@
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endef
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#
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# Local tailoring (on the command line) can be done by setting XCFLAGS
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# which is never set in the Makefile's
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#
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#
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# CFLAGS_OPTIMIZE_V, CFLAGS_DEBUG_V, CFLAGS_PROFILE_V are the values we
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# would want the corresponding macros to be set to.
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#
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# CFLAGS_OPTIMIZE, CFLAGS_DEBUG, CFLAGS_PROFILE are set in the leaf
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# Makefiles by the 'debug:' and 'profile:' targets to their _V values.
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#
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# default flags
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#
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# This contains the compiler options necessary to select the CPU model
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# and (hopefully) optimize for it.
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#
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CPU_CFLAGS =
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CFLAGS_DEFAULT = $(CPU_CFLAGS) -Wall -ansi -fasm
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# optimize flag: typically -0, could use -O4 or -fast
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# -O4 is ok for RTEMS
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CFLAGS_OPTIMIZE_V=-O4 -fomit-frame-pointer
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# debug flag; typically -g
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CFLAGS_DEBUG_V=-g -Wno-unused
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# when debugging, optimize flag: typically empty
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# some compilers do allow optimization with their "-g"
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CFLAGS_DEBUG_OPTIMIZE_V=
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# profile flag; use gprof(1)
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CFLAGS_PROFILE_V=-pg
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# default is to optimize
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CFLAGS_OPTIMIZE=$(CFLAGS_OPTIMIZE_V)
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# dynamic libraries
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CFLAGS_DYNAMIC_V=-fpic
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ASFLAGS_DYNAMIC_V=
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CFLAGS=$(CFLAGS_DEFAULT) $(CFLAGS_OPTIMIZE) $(CFLAGS_DEBUG) $(CFLAGS_PROFILE) \
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-I $(PROJECT_INCLUDE)
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# List of library paths without -L
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LD_PATHS= $(PROJECT_RELEASE)/lib
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# libraries you want EVERYONE to link with
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LD_LIBS=
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# ld flag to ensure pure-text
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LDFLAGS_MUST_BE_PURE_V =
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# ld flag for [un]shared objects
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LDFLAGS_STATIC_LIBRARIES_V =
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LDFLAGS_SHARED_LIBRARIES_V =
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# ld flag for incomplete link
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LDFLAGS_INCOMPLETE = -r
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# Special linker options when building lib.so
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LDFLAGS_DYNAMIC_V = ??
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# Some dynamic linking systems want the preferred name recorded in the binary
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# ref: src/libxil/Makefile
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LDFLAGS_DYNAMIC_LIBNAME_V = -h $(DYNAMIC_VERSION_LIBNAME)
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# ld flags for profiling, debugging
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LDFLAGS_PROFILE_V =
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LDFLAGS_DEBUG_V =
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LDFLAGS=$(LDFLAGS_PROFILE) $(LDFLAGS_DEBUG) $(LD_PATHS:%=-L %)
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#
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# Stuff to clean and clobber for the compiler and its tools
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#
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CLEAN_CC = a.out *.o *.BAK
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CLOBBER_CC =
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#
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# Client compiler and support tools
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#
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CC=gcc
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CXX=$(CC)
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CCC=$(CXX)
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# CPP command to write file to standard output
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CPP=$(CC) -E
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# flags set by cc when running cpp
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CPP_CC_FLAGS=-D__STDC__
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AS=as
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ASPP=ERROR_NO_ASPP
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ASFLAGS=
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ASM4FLAGS := -I $(PROJECT_INCLUDE)
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# NOTE: should never use full path .. but there is no guarantee ld, etc
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# will be in the same directory as gcc.. so hope they are in the path
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# Don't do this on a real target!!!
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LD=ld
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NM=nm
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AR=ar
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# egrep regexp to ignore symbol table entries in ar archives.
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# Only used to make sure we skip them when coalescing libraries.
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# skip __.SYMDEF and empty names (maybe bug in ranlib??).
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AR_SYMBOL_TABLE="HIGHLY-UNLIKELY-TO-CONFLICT"
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ARFLAGS=ruv
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# NOTE: see comment on ld, nm, ar
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SIZE=size
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#
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# Command to convert a normal archive to one searchable by $(LD)
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# Not needed on SVR4
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#
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MKLIB=echo library is complete:
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#
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# How to compile stuff into ${ARCH} subdirectory
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#
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# NOTE: we override COMPILE.c
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#
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COMPILE.c=$(CC) $(CFLAGS) $(CPPFLAGS) $(XCFLAGS) -c
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${ARCH}/%.o: %.c
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${COMPILE.c} -o $@ $<
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${ARCH}/%.o: %.cc
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${COMPILE.c} -o $@ $<
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${ARCH}/%.o: %.S
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${COMPILE.c} -DASM -o $@ $<
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${ARCH}/%.o: %.s
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$(CPP) $(CPPFLAGS) - <$*.s >$(ARCH)/$*.i
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$(AS) $(ASFLAGS) -o $@ $(ARCH)/$*.i
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# $(RM) $(ARCH)/$*.i
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# Specify our own default rule for this to prevent having CFLAGS and
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# CPPFLAGS being passed to linker
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${ARCH}/%: ${ARCH}/%.o
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${CC} ${LDFLAGS} -o $@ $@.o ${LD_LIBS}
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# Make foo.rel from foo.o
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${ARCH}/%.rel: ${ARCH}/%.o
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${LD} $(LDFLAGS_INCOMPLETE) -o $@ $^
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# create $(ARCH)/pgm from pgm.sh
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${ARCH}/%: %.sh
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$(RM) $@
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$(CP) $< $@
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$(CHMOD) +x $@
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# Dependency files for use by gmake
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# NOTE: we don't put in $(TARGET_ARCH)
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# so that 'make clean' doesn't blow it away
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DEPEND=Depends-$(TARGET_ARCH:o-%=%)
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CLEAN_DEPEND=$(DEPEND).tmp
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CLOBBER_DEPEND=$(DEPEND)
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# We deliberately don't have anything depend on the
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# $(DEPEND) file; otherwise it will get rebuilt even
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# on 'make clean'
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#
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depend: $(C_FILES) $(CC_FILES) $(S_FILES)
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ifneq ($(words $(C_FILES) $(CC_FILES) $(S_FILES)), 0)
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# Use gcc -M to generate dependencies
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# Replace foo.o with $(ARCH)/foo.o
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# Replace $(ARCH) value with string $(ARCH)
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# so that it will for debug and profile cases
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$(COMPILE.c) -M $^ | \
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$(SED) -e 's?^\(.*\)\.o[ ]*:?$$(ARCH)/\1.o:?' \
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-e 's?$(ARCH)/?$$(ARCH)/?' >$(DEPEND).tmp
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$(MV) $(DEPEND).tmp $(DEPEND)
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endif
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# List (possibly empty) of required managers
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# We require:
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# region -- used by lib/libcsupport for malloc()
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# ext -- used by libc for libc reentrancy hooks
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MANAGERS_REQUIRED=region ext sem
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# Create a RTEMS executable based on MANAGERS which was set in
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# app's Makefile
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MANAGERS_NOT_WANTED=$(filter-out $(MANAGERS), $(MANAGER_LIST))
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MANAGERS_NOT_WANTED:=$(filter-out $(MANAGERS_REQUIRED), $(MANAGERS_NOT_WANTED))
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# spell out all the LINK_FILE's, rather than using -lbsp, so
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# that $(LINK_FILES) can be a dependency
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# Start file must be one of
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# $(PROJECT_RELEASE)/lib/start$(LIB_VARIANT).o
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# $(PROJECT_RELEASE)/lib/asmiface$(LIB_VARIANT).o
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# It defaults to start.o, but an app can override it.
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# Note: Normally RTEMS provides a start file...
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START_FILE=
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CONSTRUCTOR=
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LIBGCC = $(shell $(CC) $(CFLAGS) -print-libgcc-file-name $(GCCSED))
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LINK_FILES= $(START_FILE) \
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$(CONSTRUCTOR) \
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$(OBJS) \
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$(MANAGERS_NOT_WANTED:%=$(PROJECT_RELEASE)/lib/no-%$(LIB_VARIANT).rel) \
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$(LD_LIBS) \
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$(LIBC_EXTRA_LIBS) \
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$(PROJECT_RELEASE)/lib/libtest$(LIBSUFFIX_VA) \
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$(PROJECT_RELEASE)/lib/librtemsall$(LIBSUFFIX_VA) \
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$(LIBC_LIBM) $(LIBC_LIBC) $(LIBGCC)
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# Here is the rule to actually build a $(ARCH)/foo.exe
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# It also builds $(ARCH)/foo.sr and $(ARCH)/foo.nm
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# Usage ref: src/tests/sptest/sp1/Makefile
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# On Solaris at least you need to had /usr/ucblib/libucb.a
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define make-exe
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$(CC) -o $(basename $@).exe $(LINK_FILES) -lc -lm
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$(NM) -n $(basename $@).exe > $(basename $@).num
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$(SIZE) $(basename $@).exe
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endef
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define make-rel
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$(LD) $(LDFLAGS_INCOMPLETE) $(XLDFLAGS) -o $@ $(OBJS)
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endef
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