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
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
|
########################################################################### ###
#@Title Define global variables
#@Copyright Copyright (c) Imagination Technologies Ltd. All Rights Reserved
#@Description This file is read once at the start of the build, after reading
# in config.mk. It should define the non-MODULE_* variables used
# in commands, like ALL_CFLAGS
#@License Dual MIT/GPLv2
#
# The contents of this file are subject to the MIT license as set out below.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# Alternatively, the contents of this file may be used under the terms of
# the GNU General Public License Version 2 ("GPL") in which case the provisions
# of GPL are applicable instead of those above.
#
# If you wish to allow use of your version of this file only under the terms of
# GPL, and not to allow others to use your version of this file under the terms
# of the MIT license, indicate your decision by deleting the provisions above
# and replace them with the notice and other provisions required by GPL as set
# out in the file called "GPL-COPYING" included in this distribution. If you do
# not delete the provisions above, a recipient may use your version of this file
# under the terms of either the MIT license or GPL.
#
# This License is also included in this distribution in the file called
# "MIT-COPYING".
#
# EXCEPT AS OTHERWISE STATED IN A NEGOTIATED AGREEMENT: (A) THE SOFTWARE IS
# PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING
# BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
# PURPOSE AND NONINFRINGEMENT; AND (B) IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
### ###########################################################################
# NOTE: You must *not* use the cc-option et al macros in COMMON_FLAGS,
# COMMON_CFLAGS or COMMON_USER_FLAGS. These flags are shared between
# host and target, which might use compilers with different capabilities.
# These flags are used for kernel, User C and User C++
#
COMMON_FLAGS := -W -Wall
# Some GCC warnings are C only, so we must mask them from C++
#
COMMON_CFLAGS := $(COMMON_FLAGS) \
-Wdeclaration-after-statement -Wno-format-zero-length \
-Wstrict-prototypes
# User C and User C++ optimization control. Does not affect kernel.
#
ifeq ($(BUILD),debug)
COMMON_USER_FLAGS := -O0
else
OPTIM ?= -O2
ifeq ($(USE_LTO),1)
COMMON_USER_FLAGS := $(OPTIM) -flto
else
COMMON_USER_FLAGS := $(OPTIM)
endif
endif
# FIXME: We should probably audit the driver for aliasing
#
COMMON_USER_FLAGS += -fno-strict-aliasing
# We always enable debugging. Either the release binaries are stripped
# and the symbols put in the symbolpackage, or we're building debug.
#
COMMON_USER_FLAGS += -g $(ANDROID_FPGA_FORCE_32BIT)
# User C and User C++ warning flags
#
COMMON_USER_FLAGS += \
-Wpointer-arith -Wunused-parameter \
-Wmissing-format-attribute
# Additional warnings, and optional warnings.
#
TESTED_TARGET_USER_FLAGS := \
$(call cc-option,-Wno-missing-field-initializers) \
$(call cc-option,-fdiagnostics-show-option) \
$(call cc-option,-Wno-self-assign) \
$(call cc-option,-Wno-parentheses-equality)
TESTED_HOST_USER_FLAGS := \
$(call host-cc-option,-Wno-missing-field-initializers) \
$(call host-cc-option,-fdiagnostics-show-option) \
$(call host-cc-option,-Wno-self-assign) \
$(call host-cc-option,-Wno-parentheses-equality)
# These flags are clang-specific.
# -Wno-unused-command-line-argument works around a buggy interaction
# with ccache, see https://bugzilla.samba.org/show_bug.cgi?id=8118
# -fcolor-diagnostics force-enables colored error messages which
# get disabled when ccache is piped through ccache.
#
TESTED_TARGET_USER_FLAGS += \
$(call cc-option,-Qunused-arguments) \
$(call cc-option,-fcolor-diagnostics)
TESTED_HOST_USER_FLAGS += \
$(call host-cc-option,-Qunused-arguments) \
$(call host-cc-option,-fcolor-diagnostics)
ifeq ($(W),1)
TESTED_TARGET_USER_FLAGS += \
$(call cc-option,-Wbad-function-cast) \
$(call cc-option,-Wcast-qual) \
$(call cc-option,-Wcast-align) \
$(call cc-option,-Wconversion) \
$(call cc-option,-Wdisabled-optimization) \
$(call cc-option,-Wlogical-op) \
$(call cc-option,-Wmissing-declarations) \
$(call cc-option,-Wmissing-include-dirs) \
$(call cc-option,-Wnested-externs) \
$(call cc-option,-Wold-style-definition) \
$(call cc-option,-Woverlength-strings) \
$(call cc-option,-Wpacked) \
$(call cc-option,-Wpacked-bitfield-compat) \
$(call cc-option,-Wpadded) \
$(call cc-option,-Wredundant-decls) \
$(call cc-option,-Wshadow) \
$(call cc-option,-Wswitch-default) \
$(call cc-option,-Wvla) \
$(call cc-option,-Wwrite-strings)
TESTED_HOST_USER_FLAGS += \
$(call host-cc-option,-Wbad-function-cast) \
$(call host-cc-option,-Wcast-qual) \
$(call host-cc-option,-Wcast-align) \
$(call host-cc-option,-Wconversion) \
$(call host-cc-option,-Wdisabled-optimization) \
$(call host-cc-option,-Wlogical-op) \
$(call host-cc-option,-Wmissing-declarations) \
$(call host-cc-option,-Wmissing-include-dirs) \
$(call host-cc-option,-Wnested-externs) \
$(call host-cc-option,-Wold-style-definition) \
$(call host-cc-option,-Woverlength-strings) \
$(call host-cc-option,-Wpacked) \
$(call host-cc-option,-Wpacked-bitfield-compat) \
$(call host-cc-option,-Wpadded) \
$(call host-cc-option,-Wredundant-decls) \
$(call host-cc-option,-Wshadow) \
$(call host-cc-option,-Wswitch-default) \
$(call host-cc-option,-Wvla) \
$(call host-cc-option,-Wwrite-strings)
endif
TESTED_TARGET_USER_FLAGS += \
$(call cc-optional-warning,-Wunused-but-set-variable)
TESTED_HOST_USER_FLAGS += \
$(call host-cc-optional-warning,-Wunused-but-set-variable)
KBUILD_FLAGS := \
-Wno-unused-parameter -Wno-sign-compare
TESTED_KBUILD_FLAGS := \
$(call kernel-cc-option,-Wmissing-include-dirs) \
$(call kernel-cc-option,-Wno-type-limits) \
$(call kernel-cc-option,-Wno-pointer-arith) \
$(call kernel-cc-option,-Wno-aggregate-return) \
$(call kernel-cc-option,-Wno-unused-but-set-variable) \
$(call kernel-cc-option,-Wno-old-style-declaration) \
$(call kernel-cc-optional-warning,-Wbad-function-cast) \
$(call kernel-cc-optional-warning,-Wcast-qual) \
$(call kernel-cc-optional-warning,-Wcast-align) \
$(call kernel-cc-optional-warning,-Wconversion) \
$(call kernel-cc-optional-warning,-Wdisabled-optimization) \
$(call kernel-cc-optional-warning,-Wlogical-op) \
$(call kernel-cc-optional-warning,-Wmissing-declarations) \
$(call kernel-cc-optional-warning,-Wmissing-include-dirs) \
$(call kernel-cc-optional-warning,-Wnested-externs) \
$(call kernel-cc-optional-warning,-Wno-missing-field-initializers) \
$(call kernel-cc-optional-warning,-Wold-style-definition) \
$(call kernel-cc-optional-warning,-Woverlength-strings) \
$(call kernel-cc-optional-warning,-Wpacked) \
$(call kernel-cc-optional-warning,-Wpacked-bitfield-compat) \
$(call kernel-cc-optional-warning,-Wpadded) \
$(call kernel-cc-optional-warning,-Wredundant-decls) \
$(call kernel-cc-optional-warning,-Wshadow) \
$(call kernel-cc-optional-warning,-Wswitch-default) \
$(call kernel-cc-optional-warning,-Wvla) \
$(call kernel-cc-optional-warning,-Wwrite-strings)
# User C only
#
ALL_CFLAGS := \
$(COMMON_USER_FLAGS) $(COMMON_CFLAGS) $(TESTED_TARGET_USER_FLAGS) \
$(SYS_CFLAGS)
ALL_HOST_CFLAGS := \
$(COMMON_USER_FLAGS) $(COMMON_CFLAGS) $(TESTED_HOST_USER_FLAGS)
# User C++ only
#
ALL_CXXFLAGS := \
-fno-rtti -fno-exceptions \
$(COMMON_USER_FLAGS) $(COMMON_FLAGS) $(TESTED_TARGET_USER_FLAGS) \
$(SYS_CXXFLAGS)
ALL_HOST_CXXFLAGS := \
-fno-rtti -fno-exceptions \
$(COMMON_USER_FLAGS) $(COMMON_FLAGS) $(TESTED_HOST_USER_FLAGS)
# Workaround for some target clangs that don't support -O0 w/ PIC.
#
ifeq ($(cc-is-clang),true)
ALL_CFLAGS := $(patsubst -O0,-O1,$(ALL_CFLAGS))
ALL_CXXFLAGS := $(patsubst -O0,-O1,$(ALL_CXXFLAGS))
endif
# Kernel C only
#
ALL_KBUILD_CFLAGS := $(COMMON_CFLAGS) $(KBUILD_FLAGS) $(TESTED_KBUILD_FLAGS)
# User C and C++
#
# NOTE: ALL_HOST_LDFLAGS should probably be using -rpath-link too, and if we
# ever need to support building host shared libraries, it's required.
#
# We can't use it right now because we want to support non-GNU-compatible
# linkers like the Darwin 'ld' which doesn't support -rpath-link.
#
# For the same reason (Darwin 'ld') don't bother checking for text
# relocations in host binaries.
#
ALL_HOST_LDFLAGS := -L$(HOST_OUT)
ALL_LDFLAGS := \
-Wl,--warn-shared-textrel \
-L$(TARGET_OUT) -Xlinker -rpath-link=$(TARGET_OUT)
ifneq ($(strip $(TOOLCHAIN)),)
ALL_LDFLAGS += -L$(TOOLCHAIN)/lib -Xlinker -rpath-link=$(TOOLCHAIN)/lib
endif
ifneq ($(strip $(TOOLCHAIN2)),)
ALL_LDFLAGS += -L$(TOOLCHAIN2)/lib -Xlinker -rpath-link=$(TOOLCHAIN2)/lib
endif
ifneq ($(strip $(LINKER_RPATH)),)
ALL_LDFLAGS += $(addprefix -Xlinker -rpath=,$(LINKER_RPATH))
endif
ALL_LDFLAGS += $(SYS_LDFLAGS)
# This variable contains a list of all modules built by kbuild
ALL_KBUILD_MODULES :=
# This variable contains a list of all modules which contain C++ source files
ALL_CXX_MODULES :=
# Toolchain triple for cross environment
CROSS_TRIPLE := $(patsubst %-,%,$(CROSS_COMPILE))
|
