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authorJoel Sherrill <joel.sherrill@OARcorp.com>1998-08-21 17:43:22 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>1998-08-21 17:43:22 +0000
commitcce81a748fc4f69de944ff0ae8cb1a59b6194308 (patch)
tree3db353a3c26999d927915047b1b20497347719bf /make/compilers
parentaa2171bd13758bdad57a78269867be9788127568 (diff)
downloadrtems-cce81a748fc4f69de944ff0ae8cb1a59b6194308.tar.bz2
A patch from Ralf Corsepius <corsepiu@faw.uni-ulm.de>:
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
Diffstat (limited to 'make/compilers')
-rw-r--r--make/compilers/gcc.cfg.in203
1 files changed, 203 insertions, 0 deletions
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