source: rtems/make/compilers/gcc-target-default.cfg @ effc2c4

Last change on this file since effc2c4 was effc2c4, checked in by Joel Sherrill <joel.sherrill@…>, on 04/03/00 at 14:44:39

Patch rtems-rc-4.5.0-6-cvs.diff from Ralf Corsepius <corsepiu@…>.
The patch contains:

  • build variants support
  • Reworked make-exe custom/*.cfg for all targets (Should be self-explanatory, may still be incomplete)
  • Several fixes to custom/*.cfgs related to setting debug flags
  • Fixes to some bsp_specs for BSPs which apparently have never been build with debugging before ;)
  • pc386.cfg fix attempts (cf. my mail from earlier today)
  • Updated ampolish (No need to run it, the patch contains the result from having applied it)

Known bugs/deficiencies related to this work:

  • "make [clean|distclean]" support is still incomplete (e.g. "make clean" does not delete all Depends-o-*)
  • Completely untested for linux/posix and hppa.
  • Build failures of i960 BSPs (make VARIANT=DEBUG) - I guess, they are not related to this patch.
  • Successfully tested for all sh, sparc, i386, ppc, m68k BSPs (make VARIANT=DEBUG)
  • make VARIANT=PROFILE not supported by all BSPs (I don't care :)
  • make VARIANT=DEBUG failures below tests/ for some BSPs (e.g. gensh1), because of the tests's binaries being too large to fit into the target memory layout.
  • Property mode set to 100644
File size: 7.1 KB
Line 
1#
2#  Shared compiler for all GNU tools configurations
3#
4#  $Id$
5#
6
7##
8# CFLAGS_OPTIMIZE_V, CFLAGS_DEBUG_V, CFLAGS_PROFILE_V are the values we
9# would want the corresponding macros to be set to.
10#
11# CFLAGS_OPTIMIZE, CFLAGS_DEBUG, CFLAGS_PROFILE are set in the leaf
12# Makefiles by the 'debug:' and 'profile:' targets to their _V values.
13#
14
15# default flags
16# XCPPFLAGS, XCFLAGS, XCXXFLAGS, XASFLAGS
17# are used to add flags from the shell
18# cf. make.info ("Implicit rules/variables" for details)
19
20# NOTE: Should these go to CPPFLAGS ?
21CFLAGS_DEFAULT=-g -Wall -ansi -fasm
22
23# NOTE: CPU_CFLAGS should probably be renamed to CPU_CPPFLAGS
24# NOTE: CPU_DEFINES should probably be merged with CPU_CFLAGS
25CPPFLAGS += $(CPU_DEFINES) $(CPU_CFLAGS) $(DEFINES) $(XCPPFLAGS)
26CFLAGS   = $(CFLAGS_DEFAULT) $(XCFLAGS)
27CXXFLAGS = $(CFLAGS_DEFAULT) $(XCXXFLAGS)
28ASFLAGS  = $(CPU_ASFLAGS) $(XASFLAGS)
29
30ifeq ($(RTEMS_USE_GCC272),yes)
31ifeq ($(RTEMS_CROSS_TARGET),no)
32
33ifdef RTEMS_LIBC_DIR
34RTEMS_LIBC_INCLUDES := -I$(RTEMS_LIBC_DIR)/include
35endif
36
37# Used for posix bsps
38CPPFLAGS += \
39  -I$(PROJECT_INCLUDE) \
40  $(RTEMS_LIBC_INCLUDES)
41else
42# Used for embedded bsps
43# Ask gcc where it finds its own include files
44GCC_INCLUDE=$(shell $(CC) $(CPU_CFLAGS) -print-file-name=include $(GCCSED))
45
46CPPFLAGS += -nostdinc \
47  -I$(PROJECT_INCLUDE) \
48  -I$(GCC_INCLUDE) \
49  -I$(RTEMS_LIBC_DIR)/sys-include \
50  -I$(RTEMS_LIBC_DIR)/include
51endif
52
53# default location of Standard C Library
54ifndef LIBC_LIBC
55LIBC_LIBC=$(RTEMS_LIBC_DIR)/lib/libc.a
56endif
57
58ifndef LIBC_LIBM
59LIBC_LIBM=$(RTEMS_LIBC_DIR)/lib/libm.a
60endif
61
62else
63# NOTE: GCCSPECS probably belongs to CPPFLAGS
64# Unfortunately, many custom/*.cfg files do not pass CPPFLAGS
65# to their gcc-2.8 make-exe rules
66GCCSPECS = -B$(PROJECT_RELEASE)/lib/ -specs bsp_specs -qrtems
67 
68CC  += $(GCCSPECS)
69CXX += $(GCCSPECS)
70
71CPPFLAGS +=
72
73# default location of Standard C Library
74ifndef LIBC_LIBC
75LIBC_LIBC=$(shell $(CC) $(CPU_CFLAGS) -print-file-name=libc.a $(GCCSED))
76endif
77
78ifndef LIBC_LIBM
79LIBC_LIBM=$(shell $(CC) $(CPU_CFLAGS) -print-file-name=libm.a $(GCCSED))
80endif
81endif
82
83# Define this to yes if C++ is included in the development environment.
84# This requires that at least the GNU C++ compiler and libg++ be installed.
85ifeq ($(HAS_CPLUSPLUS),yes)
86CPLUS_LD_LIBS += $(PROJECT_RELEASE)/lib/librtems++$(LIBSUFFIX_VA)
87endif
88
89# debug flag;
90CFLAGS_DEBUG_V+=-Wno-unused
91
92ifeq ($(RTEMS_USE_GCC272),no)
93CFLAGS_DEBUG_V+=-qrtems_debug
94endif
95
96# profile flag; use gprof(1)
97CFLAGS_PROFILE_V=-pg
98
99ifndef AUTOMAKE
100# default is to optimize
101CFLAGS_OPTIMIZE=$(CFLAGS_OPTIMIZE_V)
102endif
103
104# dynamic libraries
105#CFLAGS_DYNAMIC_V=-fpic
106#ASFLAGS_DYNAMIC_V=
107
108ifndef AUTOMAKE
109CFLAGS += $(CFLAGS_OPTIMIZE) $(CFLAGS_DEBUG) $(CFLAGS_PROFILE)
110endif
111
112# List of library paths without -L
113LD_PATHS= $(PROJECT_RELEASE)/lib
114
115# libraries you want EVERYONE to link with
116#LD_LIBS=
117
118# ld flag to ensure pure-text
119#LDFLAGS_MUST_BE_PURE_V =
120
121# ld flag for [un]shared objects
122#LDFLAGS_STATIC_LIBRARIES_V =
123#LDFLAGS_SHARED_LIBRARIES_V =
124
125# ld flag for incomplete link
126LDFLAGS_INCOMPLETE = -r
127
128# Special linker options when building lib.so
129LDFLAGS_DYNAMIC_V = ??
130
131# Some dynamic linking systems want the preferred name recorded in the binary
132# ref: src/libxil/Makefile
133LDFLAGS_DYNAMIC_LIBNAME_V = -h $(DYNAMIC_VERSION_LIBNAME)
134
135# ld flags for profiling, debugging
136LDFLAGS_PROFILE_V =
137LDFLAGS_DEBUG_V =
138
139LDFLAGS=$(LDFLAGS_PROFILE) $(LDFLAGS_DEBUG) $(LD_PATHS:%=-L %)
140
141#
142# Stuff to clean and clobber for the compiler and its tools
143#
144
145CLEAN_CC = a.out *.o *.BAK
146CLOBBER_CC =
147
148#
149# Client compiler and support tools
150#
151
152# CPP command to write file to standard output
153CPP=$(CC) -E -ansi -w -Wp,-$$
154
155# flags set by cc when running cpp
156# NOTE: CPP_CC_FLAGS does not seem to be used anywhere
157# CPP_CC_FLAGS=-D__STDC__
158
159# egrep regexp to ignore symbol table entries in ar archives.
160# Only used to make sure we skip them when coalescing libraries.
161# skip __.SYMDEF and empty names (maybe bug in ranlib??).
162AR_SYMBOL_TABLE="HIGHLY-UNLIKELY-TO-CONFLICT"
163ARFLAGS=ruv
164
165#
166# How to compile stuff into ${ARCH} subdirectory
167#
168
169${ARCH}/%.o: %.c
170        ${COMPILE.c} $(AM_CPPFLAGS) $(AM_CFLAGS) -o $@ $<
171
172${ARCH}/%.o: %.cc
173        ${COMPILE.cc} $(AM_CPPFLAGS) $(AM_CXXFLAGS) -o $@ $<
174
175${ARCH}/%.o: %.cpp
176        ${COMPILE.cc} $(AM_CPPFLAGS) $(AM_CXXFLAGS) -o $@ $<
177
178${ARCH}/%.o: %.cxx
179        ${COMPILE.cc} $(AM_CPPFLAGS) $(AM_CXXFLAGS) -o $@ $<
180
181${ARCH}/%.o: %.C
182        ${COMPILE.cc} $(AM_CPPFLAGS) $(AM_CXXFLAGS) -o $@ $<
183
184${ARCH}/%.o: %.S
185        ${COMPILE.S} $(AM_CPPFLAGS) -DASM -o $@ $<
186
187# Make foo.rel from foo.o
188${ARCH}/%.rel: ${ARCH}/%.o
189        ${LD} $(LDFLAGS_INCOMPLETE) -o $@ $^
190
191# create $(ARCH)/pgm from pgm.sh
192${ARCH}/%: %.sh
193        $(RM) $@
194        $(CP) $< $@
195        $(CHMOD) +x $@
196
197# Dependency files for use by gmake
198# NOTE: we don't put them into $(ARCH)
199#       so that 'make clean' doesn't blow it away
200
201DEPEND=Depends-${ARCH}
202
203CLEAN_DEPEND=$(DEPEND).tmp
204CLOBBER_DEPEND=$(DEPEND)
205
206# We deliberately don't have anything depend on the
207# $(DEPEND) file; otherwise it will get rebuilt even
208# on 'make clean'
209#
210
211depend-am: $(C_FILES) $(CC_FILES) $(S_FILES)
212ifneq ($(words $(C_FILES) $(CC_FILES) $(S_FILES)), 0)
213#       Use gcc -M to generate dependencies
214#       Replace foo.o with $(ARCH)/foo.o
215#       Replace $(ARCH) value with string $(ARCH)
216#           so that it will for debug and profile cases
217        $(COMPILE.c) $(AM_CPPFLAGS) $(AM_CFLAGS) -M   $^    |  \
218        $(SED) -e 's?^\(.*\)\.o[ ]*:?$$(ARCH)/\1.o:?' \
219            -e 's?$(ARCH)/?$$(ARCH)/?'   >$(DEPEND).tmp
220        $(MV) $(DEPEND).tmp $(DEPEND)
221endif
222depend: depend-am
223
224# spell out all the LINK_FILE's, rather than using -lbsp, so
225#  that $(LINK_FILES) can be a dependency
226
227# Start file must be one of
228#    $(PROJECT_RELEASE)/lib/start$(LIB_VARIANT).o
229#    $(PROJECT_RELEASE)/lib/asmiface$(LIB_VARIANT).o
230# It defaults to start.o, but an app can override it.
231
232ifeq ($(START_BASE),)
233  START_FILE=
234else
235  START_FILE=$(PROJECT_RELEASE)/lib/$(START_BASE)$(LIB_VARIANT).o
236endif
237
238CONSTRUCTOR=
239
240LIBC_LOW=
241
242ifndef LIBGCC
243LIBGCC = $(shell $(CC) $(CFLAGS) -print-libgcc-file-name $(GCCSED))
244endif
245
246#
247# NOTE: a rule to link an rtems' application should look similar to this
248#       (cf. "make-exe" in make/custom/*.cfg):
249#
250# gcc27:
251# $(PGM): $(LINK_FILES)
252#       $(LD) $(LDFLAGS) -o $@ $(LINK_OBJS) \
253#       --start-group $(LINK_LIBS) --end-group
254#
255# gcc28:
256# $(PGM): $(LINK_FILES)
257#       $(CC) $(CFLAGS) -o $@ $(LINK_OBJS) $(LINK_LIBS)
258#
259
260LINK_OBJS =\
261    $(CONSTRUCTOR) \
262    $(OBJS) \
263    $(MANAGERS_NOT_WANTED:%=$(PROJECT_RELEASE)/lib/no-%$(LIB_VARIANT).rel)
264
265LINK_FILES =\
266    $(START_FILE) \
267    $(CONSTRUCTOR) \
268    $(OBJS) \
269    $(MANAGERS_NOT_WANTED:%=$(PROJECT_RELEASE)/lib/no-%$(LIB_VARIANT).rel) \
270    $(PROJECT_RELEASE)/lib/librtemsall$(LIBSUFFIX_VA)
271
272ifeq ($(RTEMS_USE_GCC272),yes)
273LINK_LIBS = $(PROJECT_RELEASE)/lib/librtemsall$(LIBSUFFIX_VA)
274ifeq ($(RTEMS_CROSS_TARGET),yes)
275# NOTE: add libc and libgcc only for embedded targets
276#       LIBC_LIBM should not be needed by rtems itself.
277# FIXME: If a BSP requires libm, its make/custom/*.cfg file should add
278#        LIBC_LIBM to LINK_LIBS (untested)
279LINK_LIBS += $(LIBC_LIBC) $(LIBGCC)
280endif
281endif
282
283LINK_LIBS += $(LD_LIBS)   
284
285#
286# Allow user to override link commands (to build a prom image, perhaps)
287#
288ifndef LINKCMDS
289LINKCMDS=$(PROJECT_RELEASE)/lib/linkcmds
290endif
291
292
293define make-rel
294        $(LD) $(LDFLAGS_INCOMPLETE) $(XLDFLAGS) -o $@ $^
295endef
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