From cce81a748fc4f69de944ff0ae8cb1a59b6194308 Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Fri, 21 Aug 1998 17:43:22 +0000 Subject: A patch from Ralf Corsepius : Here is another patch to hopefully enhance rtems' configuration. Motivation: Try to support other c-compilers besides gcc (I tried to build rtems under Solaris using sun's WSPro c-compiler). Here is a couple of small patches concerning the host compiler configuration, which fix/work-around the worst problems when using sun's WSPro c-compiler. Changes: * Replaced make/compilers/gcc.cfg with make/compilers/gcc.cfg.in, ie. gcc.cfg is generated by configure now. * Removed a line containing a hard-coded "gcc" from gcc.cfg (BUG-fix). * Add -g to host compiler flags only if configure reported -g to work * Add -Wall to host compiler flags only if configure reported that the host compiler is gcc (WSPro's cc chokes on -Wall). * Some modifications to make/Makefile.in * Adapted make/custom/default.cfg to the new location of gcc.cfg BTW, gcc.cfg/gcc.cfg.in seems to be full of unused code (DEBUG-VARIANTS etc.) which deserves to be cleaned up, IMO. IMO, a similar patch should be applied to gcc-target-default.cfg --- make/compilers/gcc.cfg.in | 203 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 203 insertions(+) create mode 100644 make/compilers/gcc.cfg.in (limited to 'make/compilers/gcc.cfg.in') diff --git a/make/compilers/gcc.cfg.in b/make/compilers/gcc.cfg.in new file mode 100644 index 0000000000..df4c11cb8c --- /dev/null +++ b/make/compilers/gcc.cfg.in @@ -0,0 +1,203 @@ +# +# $Id$ +# +# gcc 2.6.x native compiler +# Compiler (and tools) configuration +# + +# Additional target names (other than debug, profile) +TARGET_VARIANTS += + +# +# Pre-processor defines. +# Local tailoring (on the command line) can be done by setting XCPPFLAGS +# which is never set in the Makefile's +# + +CPPFLAGS=$(XCPPFLAGS) $(DEFINES) + +# +# Local tailoring (on the command line) can be done by setting CFLAGS +# which is never set in the Makefile's +# + +# +# CFLAGS_OPTIMIZE_V, CFLAGS_DEBUG_V, CFLAGS_PROFILE_V are the values we +# would want the corresponding macros to be set to. +# +# CFLAGS_OPTIMIZE, CFLAGS_DEBUG, CFLAGS_PROFILE are set in the leaf +# Makefiles by the 'debug:' and 'profile:' targets to their _V values. +# + +# default flags + +CFLAGS_DEFAULT = @CC_CFLAGS_DEFAULT@ + +# Under MS-DOS do not use pipes +# It turns out the pipes don't work with some non-gas assemblers either. :( +# ifneq ($(RTEMS_HOST),msdos) +# # CFLAGS_DEFAULT += -pipe +# CFLAGS_DEFAULT += +# endif + +# Additional target names (other than debug, profile) + +# optimize flag: typically -0, could use -O4 or -fast +# -O4 is ok for RTEMS +CFLAGS_OPTIMIZE_V=-O + +# debug flag; typically -g +CFLAGS_DEBUG_V=@CC_CFLAGS_DEBUG_V@ + +# when debugging, optimize flag: typically empty +# some compilers do allow optimization with their "-g" +CFLAGS_DEBUG_OPTIMIZE_V= + +# profile flag; use gprof(1) +CFLAGS_PROFILE_V=-pg + +# default is to optimize +CFLAGS_OPTIMIZE=$(CFLAGS_OPTIMIZE_V) + +# dynamic libraries +CFLAGS_DYNAMIC_V=-fpic +ASFLAGS_DYNAMIC_V= + +# XCFLAGS are now local flags to avoid conflict with cygnus configure +XCFLAGS=$(CFLAGS_OPTIMIZE) $(CFLAGS_DEBUG) $(CFLAGS_PROFILE) \ + $(CFLAGS_DEFAULT) + +# List of library paths without -L +LD_PATHS= + +# libraries you want EVERYONE to link with +LD_LIBS= + +# ld flag to ensure pure-text +LDFLAGS_MUST_BE_PURE_V = + +# ld flag for [un]shared objects +LDFLAGS_STATIC_LIBRARIES_V = +LDFLAGS_SHARED_LIBRARIES_V = + +# ld flag for incomplete link +LDFLAGS_INCOMPLETE = -r + +# Special linker options when building lib.so +LDFLAGS_DYNAMIC_V = ?? + +# Some dynamic linking systems want the preferred name recorded in the binary +# ref: src/libxil/Makefile +LDFLAGS_DYNAMIC_LIBNAME_V = -h $(DYNAMIC_VERSION_LIBNAME) + +# ld flags for profiling, debugging +LDFLAGS_PROFILE_V = +LDFLAGS_DEBUG_V = + +LDFLAGS=$(LDFLAGS_PROFILE) $(LDFLAGS_DEBUG) $(LD_PATHS:%=-L %) + +# +# Stuff to clean and clobber for the compiler and its tools +# + +CLEAN_CC = a.out *.o *.BAK +CLOBBER_CC = + +# +# Client compiler and support tools +# + +# CC_FOR_BUILD=gcc -O +# override CC=$(CC_FOR_BUILD) + +CC=@CC@ + +# CPP command to write file to standard output +CPP=$(CC) -E + +# flags set by cc when running cpp +CPP_CC_FLAGS=-D__STDC__ + +# egrep regexp to ignore symbol table entries in ar archives. +# Only used to make sure we skip them when coalescing libraries. +# skip __.SYMDEF and empty names (maybe bug in ranlib??). +AR_SYMBOL_TABLE="HIGHLY-UNLIKELY-TO-CONFLICT" +ARFLAGS=ruv + +# +# Command to convert a normal archive to one searchable by $(LD) +# Not needed on SVR4 +# FIXME: Should be handled by autoconf. Doesn't matter, because +# rtems doesn't have any host-libraries until now. +# + +MKLIB=echo library is complete: + +# +# How to compile stuff into ${ARCH} subdirectory +# +# NOTE: we override COMPILE.c +# + +COMPILE.c=$(CC) $(CFLAGS) $(CPPFLAGS) $(XCFLAGS) -c + +${ARCH}/%.o: %.c + ${COMPILE.c} -o $@ $< + +${ARCH}/%.o: %.cc + ${COMPILE.c} -o $@ $< + +# assembly runs gasp +${ARCH}/%.o: %.s + $(CPP) ${CPPFLAGS} $< | $(SED) 's/% /%/g' | $(SED) 's/^#.*//' >$(ARCH)/$*.i + $(AS) -o $@ $(ARCH)/$*.i + $(RM) $(ARCH)/$*.i + +# Link host applications. +define make-exe + ${CC} ${LDFLAGS} -o $@ $^ ${LD_LIBS} +endef + +# Specify our own default rule for this to prevent having CFLAGS and +# CPPFLAGS being passed to linker +# +# NOTE: This rule is only used as fallback for host-tool makefiles +# which don't provide their own rule +${ARCH}/%$(EXEEXT): ${ARCH}/%.o + $(make-exe) + +# create $(ARCH)/pgm from pgm.sh +${ARCH}/%: %.sh + $(RM) $@ + $(CP) $< $@ + $(CHMOD) +x $@ + +# Dependency files for use by gmake +# NOTE: we don't put in $(TARGET_ARCH) +# so that 'make clean' doesn't blow it away + +DEPEND=Depends-$(TARGET_ARCH:o-%=%) + +CLEAN_DEPEND=$(DEPEND).tmp +CLOBBER_DEPEND=$(DEPEND) + +# We deliberately don't have anything depend on the +# $(DEPEND) file; otherwise it will get rebuilt even +# on 'make clean' +# + +depend: $(C_FILES) $(CC_FILES) $(S_FILES) +ifneq ($(words $(C_FILES) $(CC_FILES) $(S_FILES)), 0) +# Use gcc -M to generate dependencies +# Replace foo.o with $(ARCH)/foo.o +# Replace $(ARCH) value with string $(ARCH) +# so that it will for debug and profile cases + $(COMPILE.c) -M $^ | \ + $(SED) -e 's?^\(.*\)\.o[ ]*:?$$(ARCH)/\1.o:?' \ + -e 's?$(ARCH)/?$$(ARCH)/?' >$(DEPEND).tmp + $(MV) $(DEPEND).tmp $(DEPEND) +endif + +define make-rel + $(LD) $(LDFLAGS_INCOMPLETE) $(XLDFLAGS) -o $@ $(OBJS) +endef -- cgit v1.2.3