forked from open-power/skiboot
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathMakefile.main
362 lines (287 loc) · 11.1 KB
/
Makefile.main
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
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
# SPDX-License-Identifier: Apache-2.0
#
# This is the main Makefile
#
# Copyright 2013-2019 IBM Corp
# Target tools
CC=$(CROSS)gcc$(POSTFIX)
LD=$(CROSS)ld$(POSTFIX)
AS=$(CROSS)as
AR=$(CROSS)ar
NM=$(CROSS)nm
OBJCOPY=$(CROSS)objcopy
OBJDUMP=$(CROSS)objdump
SIZE=$(CROSS)size
LD_TEXT=0x0
NM += --synthetic
try = $(shell set -e; if ($(1)) >/dev/null 2>&1; \
then echo "$(2)"; \
else echo "$(3)"; fi )
try-cflag = $(call try,$(1) $(2) -x c -c /dev/null -o /dev/null,$(2))
test_cflag = $(call try,$(1) $(2) -x c -c /dev/null -o /dev/null,1,0)
cc-name := $(shell $(CC) -v 2>&1 | grep -q "clang version" && echo clang || echo gcc)
# Base warnings
CWARNS := -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
-Werror-implicit-function-declaration -Wdeclaration-after-statement \
-Wno-pointer-sign -Wextra -Wno-sign-compare \
-Wmissing-prototypes -Wmissing-declarations \
-Wwrite-strings -Wcast-align \
-Winit-self \
-Werror
# Host tools and options
HOSTCC=gcc
HOSTEND=$(shell uname -m | sed -e 's/^i.*86$$/LITTLE/' -e 's/^x86.*/LITTLE/' -e 's/^ppc64le/LITTLE/' -e 's/^ppc.*/BIG/')
HOSTCFLAGS=-O1 $(CWARNS) -DHAVE_$(HOSTEND)_ENDIAN -MMD
HOSTCFLAGS += $(call try-cflag,$(HOSTCC),-std=gnu11)
HOSTCFLAGS += $(call try-cflag,$(HOSTCC),-m64)
HOSTCFLAGS += $(call try-cflag,$(HOSTCC),-Wjump-misses-init) \
$(call try-cflag,$(HOSTCC),-Wsuggest-attribute=const) \
$(call try-cflag,$(HOSTCC),-Wsuggest-attribute=noreturn)
HOSTCFLAGS += -DDEBUG -DCCAN_LIST_DEBUG
# We want small stack usage for skiboot
# but host compilation of unit tests tend to inline heavily,
# which creates larger stack frames and triggering useless warnings
HOSTCFLAGS += -Wframe-larger-than=4096
CWARNS += -Wframe-larger-than=1024
HOSTGCOVCFLAGS = -fprofile-arcs -ftest-coverage -lgcov -O0 -g -pg
VALGRIND := valgrind -q --show-reachable=yes --error-exitcode=99
# Target options
OPTS=-Os
DBG=-g
CPPFLAGS := -I$(SRC)/include -Iinclude -MMD -include $(SRC)/include/config.h
CPPFLAGS += -I$(SRC)/libfdt -I$(SRC)/libflash -I$(SRC)/libxz -I$(SRC)/libc/include -I$(SRC)
CPPFLAGS += -I$(SRC)/libpore
CPPFLAGS += -D__SKIBOOT__ -nostdinc
CPPFLAGS += -isystem $(shell $(CC) -print-file-name=include)
CPPFLAGS += -DBITS_PER_LONG=64 -DHAVE_BIG_ENDIAN
# We might want to remove our copy of stdint.h
# but that means uint64_t becomes an ulong instead of an ullong
# causing all our printf's to warn
CPPFLAGS += -ffreestanding
ifeq ($(DEBUG),1)
CPPFLAGS += -DDEBUG -DCCAN_LIST_DEBUG
endif
CFLAGS := -fno-strict-aliasing -pie -fpie -fno-pic -mbig-endian -m64 -fno-asynchronous-unwind-tables
CFLAGS += -mcpu=power7
CFLAGS += -Wl,--oformat,elf64-powerpc -ggdb
CFLAGS += $(call try-cflag,$(CC),-ffixed-r13)
CFLAGS += $(call try-cflag,$(CC),-std=gnu11)
ifeq ($(ELF_ABI_v2),1)
CFLAGS += $(call try-cflag,$(CC),-mabi=elfv2)
else
CFLAGS += $(call try-cflag,$(CC),-mabi=elfv1)
endif
ifeq ($(DEAD_CODE_ELIMINATION),1)
CFLAGS += -ffunction-sections -fdata-sections
endif
ifeq ($(SKIBOOT_GCOV),1)
CFLAGS += -fprofile-arcs -ftest-coverage -DSKIBOOT_GCOV=1
endif
ifeq ($(USE_VALGRIND),1)
CFLAGS += -DUSE_VALGRIND=1
else
VALGRIND :=
endif
# Check if the new parametrized stack protector option is supported
# by gcc, otherwise disable stack protector
STACK_PROT_CFLAGS := -mstack-protector-guard=tls -mstack-protector-guard-reg=r13
STACK_PROT_CFLAGS += -mstack-protector-guard-offset=0
HAS_STACK_PROT := $(call test_cflag,$(CC),$(STACK_PROT_CFLAGS))
ifeq ($(STACK_CHECK),1)
STACK_PROT_CFLAGS += -fstack-protector-all
CPPFLAGS += -DSTACK_CHECK_ENABLED
CFLAGS += -pg
else
STACK_PROT_CFLAGS += -fstack-protector
STACK_PROT_CFLAGS += $(call try-cflag,$(CC),-fstack-protector-strong)
endif
ifeq ($(HAS_STACK_PROT),1)
CPPFLAGS += -DHAS_STACK_PROT
CFLAGS += $(STACK_PROT_CFLAGS)
else
CFLAGS += -fno-stack-protector
endif
CFLAGS += $(call try-cflag,$(CC),-Wjump-misses-init) \
$(call try-cflag,$(CC),-Wsuggest-attribute=const) \
$(call try-cflag,$(CC),-Wsuggest-attribute=noreturn) \
$(call try-cflag,$(CC),-Wstack-usage=1024) \
$(call try-cflag,$(CC),-Wno-error=address-of-packed-member)
CFLAGS += $(CWARNS) $(OPTS) $(DBG)
LDFLAGS := -m64 -static -nostdlib -pie
LDFLAGS += -Wl,-pie
LDFLAGS += -Wl,-Ttext-segment,$(LD_TEXT) -Wl,-N -Wl,--build-id=none
LDFLAGS += -Wl,--no-multi-toc
LDFLAGS += -mcpu=power7 -mbig-endian -Wl,--oformat,elf64-powerpc
LDFLAGS_FINAL = -EB -m elf64ppc --no-multi-toc -N --build-id=none --whole-archive
LDFLAGS_FINAL += -static -nostdlib -pie -Ttext-segment=$(LD_TEXT) --oformat=elf64-powerpc
LDFLAGS_FINAL += --orphan-handling=warn
LDRFLAGS=-melf64ppc
# Debug stuff
#LDFLAGS += -Wl,-v -Wl,-Map,foomap
ifeq ($(DEAD_CODE_ELIMINATION),1)
LDFLAGS += -Wl,--gc-sections
endif
AFLAGS := -D__ASSEMBLY__ -mbig-endian -m64
ifeq ($(ELF_ABI_v2),1)
AFLAGS += $(call try-cflag,$(CC),-mabi=elfv2)
else
AFLAGS += $(call try-cflag,$(CC),-mabi=elfv1)
endif
ifeq ($(cc-name),clang)
CLANG_TARGET := --target=powerpc64-linux-gnu -mcpu=pwr8
GCC_TOOLCHAIN := $(realpath $(dir $(shell which $(LD)))/..)
ifneq ($(GCC_TOOLCHAIN),)
CLANG_GCC_TC := --gcc-toolchain=$(GCC_TOOLCHAIN)
endif
CFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC)
AFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC)
LDFLAGS += $(CLANG_TARGET) $(CLANG_GCC_TC)
# Workarounds
# TODO: Fix the issues these hide, and remove them
CFLAGS += -Wno-cast-align \
-Wno-unused-command-line-argument \
-Wno-unknown-warning-option \
-Wno-gnu-variable-sized-type-not-at-end \
-Wno-address-of-packed-member \
-Wno-error=ignored-attributes
# pci_add_device_nodes is the largest, at 2048 with clang-7 (smaller with older
# versions)
CFLAGS += -Wframe-larger-than=2048
endif
# Special tool flags:
# Do not use the floating point unit
CFLAGS += -msoft-float
# Do not use string instructions
CFLAGS += $(call try-cflag,$(CC),-mno-string)
# do not use load/store multiple word instrcutions
CFLAGS += $(call try-cflag,$(CC),-mno-multiple)
# Do not use any automatic vector foo. While it would be safe during boot, we
# don't save/restore across OPAL calls
CFLAGS += -mno-vsx -mno-altivec
# Do not use load/store update. You REALLY do not want to use this!
# The async safety of the ABI stack depends on the atomicity
# of update on store.
#CFLAGS += -mno-update
ifneq ($(KERNEL),)
CPPFLAGS += -DBUILTIN_KERNEL="\"$(KERNEL)\""
endif
CHECK = sparse
CHECKFLAGS := $(CF)
CHECK_CFLAGS_SKIP = -std=gnu11
.SECONDARY:
vpath %.c $(SRC)
vpath %.C $(SRC)
vpath %.S $(SRC)
default: all
include/asm-offsets.h: asm/asm-offsets.s
@mkdir -p include
$(call Q,GN, $(SRC)/make_offsets.sh $< >$@, $@)
TARGET = skiboot
include $(SRC)/asm/Makefile.inc
include $(SRC)/core/Makefile.inc
include $(SRC)/hw/Makefile.inc
include $(SRC)/platforms/Makefile.inc
include $(SRC)/libfdt/Makefile.inc
include $(SRC)/libflash/Makefile.inc
include $(SRC)/libxz/Makefile.inc
include $(SRC)/libpore/Makefile.inc
include $(SRC)/libc/Makefile.inc
include $(SRC)/ccan/Makefile.inc
include $(SRC)/$(DEVSRC)/Makefile.inc
include $(SRC)/libstb/Makefile.inc
# hack for travis-ci and coverity
gard:
(cd external/gard; CROSS_COMPILE="" CFLAGS="$(HOSTCFLAGS) $(HOSTGCOVCFLAGS)" make)
coverage: gard-coverage
gard-coverage:
(cd external/gard; CROSS_COMPILE="" CFLAGS="$(HOSTCFLAGS) $(HOSTGCOVCFLAGS)" make coverage)
pflash:
(cd external/pflash; CROSS_COMPILE="" CFLAGS="$(HOSTCFLAGS) $(HOSTGCOVCFLAGS)" make)
coverage: pflash-coverage
pflash-coverage:
(cd external/pflash; CROSS_COMPILE="" CFLAGS="$(HOSTCFLAGS) $(HOSTGCOVCFLAGS)" make coverage)
pflash-coverity:
(cd external/pflash; ./build-all-arch.sh)
all: $(SUBDIRS) $(TARGET).lid $(TARGET).lid.xz $(TARGET).map extract-gcov
all: $(TARGET).lid.stb $(TARGET).lid.xz.stb
OBJS := $(ASM) $(CORE) $(HW) $(PLATFORMS) $(LIBFDT) $(LIBXZ) $(LIBFLASH) $(LIBSTB)
OBJS += $(LIBC) $(CCAN) $(DEVSRC_OBJ) $(LIBPORE)
OBJS_NO_VER = $(OBJS)
ALL_OBJS = $(OBJS) version.o
ALL_OBJS_1 = $(TARGET).tmp.a asm/dummy_map.o
ALL_OBJS_2 = $(TARGET).tmp.a asm/real_map.o
$(TARGET).lid.xz: $(TARGET).lid
$(call Q,XZ, cat $^ | xz -9 -C crc32 > $@, $@)
$(TARGET).lid: $(TARGET).elf
$(call Q,OBJCOPY, $(OBJCOPY) -O binary -S $^ $@, $@)
$(TARGET).lid.stb: $(TARGET).lid libstb/create-container
$(call Q,STB-DEVELOPMENT-SIGNED-CONTAINER,$(SRC)/libstb/sign-with-local-keys.sh $< $@ $(SRC)/libstb/keys/ PAYLOAD,$@)
$(TARGET).lid.xz.stb: $(TARGET).lid.xz libstb/create-container
$(call Q,STB-DEVELOPMENT-SIGNED-CONTAINER,$(SRC)/libstb/sign-with-local-keys.sh $< $@ $(SRC)/libstb/keys/ PAYLOAD,$@)
$(TARGET).tmp.a: $(ALL_OBJS)
@rm -f $(TARGET).tmp.a
$(call Q,AR, $(AR) rcsTPD $@ $(ALL_OBJS), $@)
$(TARGET).tmp.elf: $(ALL_OBJS_1) $(TARGET).lds $(KERNEL)
$(call Q,LD, $(LD) $(LDFLAGS_FINAL) -o $@ -T $(TARGET).lds $(ALL_OBJS_1), $@)
asm/real_map.o : $(TARGET).tmp.map
$(TARGET).elf: $(ALL_OBJS_2) $(TARGET).lds $(KERNEL)
$(call Q,LD, $(LD) $(LDFLAGS_FINAL) -o $@ -T $(TARGET).lds $(ALL_OBJS_2), $@)
$(SUBDIRS):
$(call Q,MKDIR,mkdir -p $@, $@)
-include $(wildcard *.d)
-include $(wildcard $(SUBDIRS:%=%/*.d))
# Set V=1 if you want to see everything.
include $(SRC)/Makefile.rules
VERSION ?= $(shell cd $(SRC); GIT_DIR=$(SRC)/.git $(SRC)/make_version.sh)
.PHONY: VERSION-always
.version: VERSION-always
@echo $(VERSION) > $@.tmp
@cmp -s $@ $@.tmp || cp $@.tmp $@
@rm -f $@.tmp
version.c: $(SRC)/make_version.sh $(OBJS_NO_VER) .version
@(if [ "a$(VERSION)" = "a" ]; then \
echo "#error You need to set SKIBOOT_VERSION environment variable" > $@ ;\
else \
echo "extern const char version[];"; \
echo "const char version[] = \"$(VERSION)\";" ;\
fi) > $@
.PHONY: coverage
include $(shell find $(SRC)/* -name Makefile.check)
extract-gcov: extract-gcov.c
$(call Q, HOSTCC ,$(HOSTCC) $(HOSTCFLAGS) \
-DTARGET__GNUC__=`echo '__GNUC__'|$(CC) -E -|grep -v '^#'` \
-DTARGET__GNUC_MINOR__=`echo '__GNUC_MINOR__'|$(CC) -E -|grep -v '^#'` \
-Wpadded -O0 -g -I$(SRC) -o $@ $<,$<)
coverage-report: skiboot.info
genhtml --branch-coverage -q -o $@ $<
# A rather nasty hack here that relies on the lcov file format
external/pflash/pflash.info: coverage
(cd external/pflash; lcov -q -c -d . -o pflash.info --rc lcov_branch_coverage=1; sed -i -e 's%external/pflash/libflash%libflash%; s%external/pflash/ccan%ccan%' pflash.info)
external/gard/gard.info: coverage
(cd external/gard; lcov -q -c -d . -o gard.info --rc lcov_branch_coverage=1; sed -i -e 's%external/gard/libflash%libflash%; s%external/gard/ccan%ccan%' gard.info)
skiboot.info: coverage external/pflash/pflash.info external/gard/gard.info
lcov -q -c -d . $(LCOV_DIRS) -o $@ --rc lcov_branch_coverage=1
lcov -q -r $@ 'external/pflash/*' -o $@
lcov -q -r $@ 'external/gard/*' -o $@
lcov -q -a $@ -a external/pflash/pflash.info -o $@
lcov -q -a $@ -a external/gard/gard.info -o $@
lcov -q -r $@ $(LCOV_EXCLUDE) -o $@ --rc lcov_branch_coverage=1
doc:
make -C doc html
tags:
find . -name '*.[chS]' | xargs ctags
TAGS:
find . -name '*.[chS]' | xargs etags
.PHONY: tags TAGS check coverage doc
cscope:
find . -name '*.[chS]' | xargs cscope
clean:
$(RM) *.[odsa] $(SUBDIRS:%=%/*.[odsa])
$(RM) *.gcno $(SUBDIRS:%=%/*.gcno)
$(RM) *.gcda $(SUBDIRS:%=%/*.gcda)
$(RM) *.elf $(TARGET).lid *.map $(TARGET).lds $(TARGET).lid.xz
$(RM) include/asm-offsets.h version.c .version
$(RM) skiboot.info external/gard/gard.info external/pflash/pflash.info
$(RM) extract-gcov $(TARGET).lid.stb $(TARGET).lid.xz.stb
distclean: clean
$(RM) *~ $(SUBDIRS:%=%/*~) include/*~