blob: 687262326dfff6e106faccc4ecb0945ab60f1850 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
##
## $Id$
##
## -------------------------------------------------------------------------
## NOTE: This file is rather immature and has to be considered to be
## almost experimental.
##
## Expect frequent changes -- It deserves to be cleaned up :(
## -------------------------------------------------------------------------
## The section below is based on make/compilers/gcc-target-default.cfg
## used in former versions of RTEMS.
##
## Set up the flags for the toolchains:
##
## We are considering 3 different building schemes here:
## * Using gcc's being able to accept -specs (aka gcc-2.8 building scheme)
## * Using gcc's not being able to accept -specs (aka gcc-2.7.2 building
## scheme)
## * Using third party toolchains (aka non-gcc building scheme)
##
## Automake conditionals in use:
## RTEMS_USE_GCC .. if we are using GCC
## NOTES:
## * The gcc-2.8 building scheme is the nominal building scheme and
## is actively supported.
## * The non-gcc building scheme requires manually setting up environment
## variables and is hardly tested at all
## 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 by the
## 'VARIANT=<OPTIMIZE|DEBUG|PROFILE>' targets to their _V values.
## XCPPFLAGS, XCFLAGS, XASFLAGS
## are used to add flags from the shell
## cf. make.info ("Implicit rules/variables" for details)
if RTEMS_USE_GCC
## All the stuff below is specific to gcc
## gcc >= 2.8.x
GCCSPECS = $(GCC_SPECS)
else
## fall back to the old style compilers/*.cfg
## CONFIG.CC is supposed to be provided by <BSP>.cfg
include $(CONFIG.CC)
endif # RTEMS_USE_GCC
DEFS = @DEFS@
CPPFLAGS = @CPPFLAGS@ $(CPU_DEFINES) $(DEFINES) $(XCPPFLAGS)
CFLAGS = @RTEMS_CFLAGS@ $(XCFLAGS)
ASFLAGS = $(CPU_ASFLAGS) $(CPU_CFLAGS) $(XASFLAGS)
#
# How to compile stuff into ${ARCH} subdirectory
#
COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
CCLD = $(CC)
CCASCOMPILE = $(CCAS) $(AM_CCASFLAGS) $(CCASFLAGS)
${ARCH}/%.$(OBJEXT): %.c
${COMPILE} -o $@ -c $<
${ARCH}/%.$(OBJEXT): %.S
${CCASCOMPILE} -o $@ -c $<
# Make foo.rel from foo.$(OBJEXT)
${ARCH}/%.rel: ${ARCH}/%.$(OBJEXT)
${make-rel}
# Dependency files for use by gmake
# NOTE: we don't put them into $(ARCH)
# so that 'make clean' doesn't blow it away
DEPEND=Depends-${ARCH}
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'
#
## HACK: Specific to gcc
## FIXME: The approach below is known to be conceptionally broken.
depend-am: $(C_FILES) $(CC_FILES) $(S_FILES)
## Use gcc -M to generate dependencies
## Replace foo.$(OBJEXT) with $(ARCH)/foo.$(OBJEXT)
## Replace $(ARCH) value with string $(ARCH)
## so that it will for debug and profile cases
$(COMPILE) -M $^ | \
sed -e 's?^\(.*\)\.o[ ]*:?$$(ARCH)/\1.o:?' \
-e 's?$(ARCH)/?$$(ARCH)/?' >$(DEPEND).tmp
mv $(DEPEND).tmp $(DEPEND)
depend: depend-am
# pull in dependencies if they exist
ifeq (${DEPEND},$(wildcard ${DEPEND}))
include ${DEPEND}
@ENDIF@
## -------------------------------------------------------------------------
## translate VARIANT into VARIANT_V
VARIANT = OPTIMIZE
VARIANT_OPTIMIZE_V = OPTIMIZE
VARIANT_DEBUG_V = DEBUG
VARIANT_PROFILE_V = PROFILE
VARIANT_optimize_V = OPTIMIZE
VARIANT_debug_V = DEBUG
VARIANT_profile_V = PROFILE
VARIANT_V = $(VARIANT_$(VARIANT)_V)
## Setup the variant build subdirectory
ARCH_OPTIMIZE_V = o-optimize
ARCH_DEBUG_V = o-debug
ARCH_PROFILE_V = o-profile
ARCH__V = $(ARCH_OPTIMIZE_V)
ARCH = $(ARCH_$(VARIANT_V)_V)
## Setup the library suffix
LIBSUFFIX_OPTIMIZE_V =
LIBSUFFIX_DEBUG_V = _g
LIBSUFFIX_PROFILE_V = _p
LIBSUFFIX__V = $(LIBSUFFIX_OPTIMIZE_V)
LIB_VARIANT = $(LIBSUFFIX_$(VARIANT_V)_V)
LIBSUFFIX_VA = $(LIB_VARIANT).a
## These are supposed to be set in make/custom/<bsp>.cfg
CPU_CFLAGS = @CPU_CFLAGS@
CFLAGS_OPTIMIZE_V = @CFLAGS_OPTIMIZE_V@
CFLAGS_DEBUG_V = @CFLAGS_DEBUG_V@
CFLAGS_PROFILE_V = @CFLAGS_PROFILE_V@
CFLAGS__V = $(CFLAGS_OPTIMIZE_V)
## ------------------------------------------------------------------------
## Setup hard-coded flags
if RTEMS_USE_GCC
## gcc >= gcc-2.8
RTEMS_CFLAGS_OPTIMIZE_V =
RTEMS_CFLAGS_DEBUG_V = -Wno-unused
RTEMS_CFLAGS_PROFILE_V = -pg
## non-gcc
## We can't guess what flags might be required here.
## Pass the values from the environment if you want to apply them.
endif
RTEMS_CFLAGS__V = $(RTEMS_CFLAGS_OPTIMIZE_V)
## -------------------------------------------------------------------------
CC = @CC@ $(GCCSPECS)
CPP = @CPP@ $(GCCSPECS)
##
AM_CPPFLAGS = $(RTEMS_CPPFLAGS)
AM_CFLAGS =
AM_CCASFLAGS = $(RTEMS_CPPFLAGS) $(RTEMS_ASFLAGS)
|
