aboutsummaryrefslogtreecommitdiffstats
path: root/core/Makefile
blob: ad0acb5a9ddae414a19547d67b283d273b1819a6 (plain)
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
## -----------------------------------------------------------------------
##
##   Copyright 1998-2009 H. Peter Anvin - All Rights Reserved
##   Copyright 2009-2014 Intel Corporation; author: H. Peter Anvin
##
##   This program is free software; you can redistribute it and/or modify
##   it under the terms of the GNU General Public License as published by
##   the Free Software Foundation, Inc., 53 Temple Place Ste 330,
##   Boston MA 02111-1307, USA; either version 2 of the License, or
##   (at your option) any later version; incorporated herein by reference.
##
## -----------------------------------------------------------------------

#
# Makefile for the SYSLINUX core
#

VPATH = $(SRC)

# No builtin rules
MAKEFLAGS += -r
MAKE      += -r

include $(MAKEDIR)/embedded.mk
-include $(objdir)/version.mk

OPTFLAGS =
INCLUDES = -I$(SRC)/include -I$(com32)/include -I$(com32)/include/sys -I$(com32)/lib \
	-I$(SRC)/lwip/src/include -I$(SRC)/lwip/src/include/ipv4 -I$(SRC)/fs/pxe

# This is very similar to cp437; technically it's for Norway and Denmark,
# but it's unlikely the characters that are different will be used in
# filenames by other users.
CODEPAGE = cp865

# The targets to build in this directory...
BTARGET  = kwdhash.gen \
	   ldlinux.bss ldlinux.sys ldlinux.bin \
	   isolinux.bin isolinux-debug.bin pxelinux.0 lpxelinux.0

# All primary source files for the main syslinux files
NASMSRC	 := $(wildcard $(SRC)/*.asm)
NASMHDR  := $(wildcard $(SRC)/*.inc)
CSRC	 := $(shell find $(SRC) -name '*.c' -print)
SSRC	 := $(shell find $(SRC) -name '*.S' -print)
CHDR	 := $(shell find $(SRC) -name '*.h' -print)
OTHERSRC := keywords
ALLSRC    = $(NASMSRC) $(NASMHDR) $(CSRC) $(SSRC) $(CHDR) $(OTHERSRC)

COBJ	 := $(subst $(SRC)/,,$(patsubst %.c,%.o,$(CSRC)))
SOBJ	 := $(subst $(SRC)/,,$(patsubst %.S,%.o,$(SSRC)))

# To make this compatible with the following $(filter-out), make sure
# we prefix everything with $(SRC)
CORE_PXE_CSRC = \
	$(addprefix $(SRC)/fs/pxe/, dhcp_option.c pxe.c tftp.c urlparse.c bios.c)

LPXELINUX_CSRC = $(CORE_PXE_CSRC) \
	$(shell find $(SRC)/lwip -name '*.c' -print) \
	$(addprefix $(SRC)/fs/pxe/, \
		core.c dnsresolv.c ftp.c ftp_readdir.c gpxeurl.c http.c \
		http_readdir.c idle.c isr.c tcp.c)

PXELINUX_CSRC = $(CORE_PXE_CSRC) \
	$(shell find $(SRC)/legacynet -name '*.c' -print)

LPXELINUX_OBJS = $(subst $(SRC)/,,$(LPXELINUX_CSRC:%.c=%.o))
PXELINUX_OBJS  = $(subst $(SRC)/,,$(PXELINUX_CSRC:%.c=%.o))

UNITTEST_CSRC = $(shell find $(SRC) -path '*/tests/*.c' -print)
UNITTEST_OBJS = $(subst $(SRC)/,,$(UNITTEST_CSRC:%.c=%.o))

# Don't include console and network stack specific objects or unit tests
FILTER_OBJS = %rawcon.o %plaincon.o %pxelinux-c.o %ldlinux-c.o \
	%isolinux-c.o %localboot.o %pxeboot.o \
	$(subst $(OBJ)/,,$(UNITTEST_OBJS)) \
	$(subst $(OBJ)/,,$(LPXELINUX_OBJS)) \
	$(subst $(OBJ)/,,$(PXELINUX_OBJS))

ifdef EFI_BUILD
# EFI is single-threaded, and doesn't use the LZO assembly decoder
FILTER_OBJS += $(subst $(SRC)/,, \
	$(patsubst %.S,%.o, $(wildcard $(SRC)/lzo/*.S)) \
	$(patsubst %.c,%.o, $(wildcard $(SRC)/thread/*.c)) \
	$(patsubst %.S,%.o, $(wildcard $(SRC)/thread/*.S)))
endif

COBJS	 = $(filter-out $(FILTER_OBJS),$(COBJ))
SOBJS	 = $(filter-out $(FILTER_OBJS),$(SOBJ))

ifdef EFI_BUILD
COBJS += $(subst $(SRC)/,,$(CORE_PXE_CSRC:%.c=%.o) fs/pxe/ftp.o fs/pxe/ftp_readdir.o \
	fs/pxe/http.o fs/pxe/http_readdir.o)
endif

LIB	 = libcom32.a
LIBS	 = $(LIB) --whole-archive $(objdir)/com32/lib/libcom32core.a
LIBDEP   = $(filter-out -% %start%,$(LIBS))
LIBOBJS	 = $(COBJS) $(SOBJS)

NASMDEBUG = -g -F dwarf
NASMOPT  += $(NASMDEBUG)

PREPCORE = $(OBJ)/../lzo/prepcore

CFLAGS += -D__SYSLINUX_CORE__ -D__FIRMWARE_$(FIRMWARE)__ \
	  -I$(objdir) -DLDLINUX=\"$(LDLINUX)\"

# The DATE is set on the make command line when building binaries for
# official release.  Otherwise, substitute a hex string that is pretty much
# guaranteed to be unique to be unique from build to build.
ifndef HEXDATE
HEXDATE := $(shell $(PERL) $(SRC)/../now.pl $(SRCS))
endif
ifndef DATE
DATE    := $(shell sh $(SRC)/../gen-id.sh $(VERSION) $(HEXDATE))
endif

# Set up the NASM and LD options for the architecture
NASM_ELF = "unknown"
LD_PIE = "unknown"
ifeq ($(ARCH),i386)
	NASM_ELF = elf
	LD_PIE = -pie
endif
ifeq ($(ARCH),x86_64)
	NASM_ELF = elf64
	#LD_PIE = --pic-executable
	LD_PIE = 
endif

ifdef EFI_BUILD
all: makeoutputdirs $(filter-out %bios.o,$(COBJS) $(SOBJS)) codepage.o
else
all: makeoutputdirs $(BTARGET)
endif

makeoutputdirs:
	@mkdir -p $(sort $(dir $(COBJ) $(SOBJ)))

kwdhash.gen: keywords genhash.pl
	$(PERL) $(SRC)/genhash.pl < $(SRC)/keywords > $(OBJ)/kwdhash.gen

.PRECIOUS: %.elf

%.raw: %.elf
	$(OBJCOPY) -O binary -S $< $(@:.bin=.raw)

# GNU make 3.82 gets confused by the first form
.PRECIOUS: $(OBJ)/%.raw

%.bin: %.raw $(PREPCORE)
	$(PREPCORE) $< $@

%.o: %.asm kwdhash.gen $(OBJ)/../version.gen
	$(NASM) -f $(NASM_ELF) $(NASMOPT) -DDATE_STR="'$(DATE)'" \
		-DHEXDATE="$(HEXDATE)" \
		-D$(ARCH) \
		-I$(SRC)/ \
		-l $(@:.o=.lsr) -o $@ -MP -MD $(dir $@).$(notdir $@).d $<

AUXLIBS = libisolinux.a libisolinux-debug.a libldlinux.a \
	libpxelinux.a liblpxelinux.a
LDSCRIPT = $(SRC)/$(ARCH)/syslinux.ld

%.elf: %.o $(LIBDEP) $(LDSCRIPT) $(AUXLIBS)
	$(LD) $(LDFLAGS) -Bsymbolic $(LD_PIE) -E --hash-style=gnu -T $(LDSCRIPT) -M -o $@ $< \
		--start-group $(LIBS) $(subst $(*F).elf,lib$(*F).a,$@) --end-group \
		> $(@:.elf=.map)
	$(OBJDUMP) -h $@ > $(@:.elf=.sec)
	$(PERL) $(SRC)/lstadjust.pl $(@:.elf=.lsr) $(@:.elf=.sec) $(@:.elf=.lst)

libisolinux.a: rawcon.o localboot.o isolinux-c.o
	rm -f $@
	$(AR) cq $@ $^
	$(RANLIB) $@

libisolinux-debug.a: libisolinux.a
	cp $^ $@

# Legacy network stack
libpxelinux.a: rawcon.o pxeboot.o pxelinux-c.o $(PXELINUX_OBJS)
	rm -f $@
	$(AR) cq $@ $^
	$(RANLIB) $@

# LwIP network stack
liblpxelinux.a: rawcon.o pxeboot.o pxelinux-c.o $(LPXELINUX_OBJS)
	rm -f $@
	$(AR) cq $@ $^
	$(RANLIB) $@

libldlinux.a: plaincon.o localboot.o ldlinux-c.o
	rm -f $@
	$(AR) cq $@ $^
	$(RANLIB) $@

$(LIB): $(LIBOBJS)
	rm -f $@
	$(AR) cq $@ $^
	$(RANLIB) $@

pxelinux.o: pxelinux.asm kwdhash.gen ../version.gen
	$(NASM) -f $(NASM_ELF) $(NASMOPT) -DDATE_STR="'$(DATE)'" \
		-DHEXDATE="$(HEXDATE)" \
		-D$(ARCH) \
		-I$(SRC)/ \
		-DIS_LPXELINUX=0 \
		-l $(@:.o=.lsr) -o $@ -MP -MD $(dir $@).$(notdir $@).d $<

pxelinux.0: pxelinux.bin
	cp -f $< $@

lpxelinux.o: pxelinux.asm kwdhash.gen ../version.gen
	$(NASM) -f $(NASM_ELF) $(NASMOPT) -DDATE_STR="'$(DATE)'" \
		-DHEXDATE="$(HEXDATE)" \
		-D$(ARCH) \
		-I$(SRC)/ \
		-DIS_LPXELINUX=1 \
		-l $(@:.o=.lsr) -o $@ -MP -MD $(dir $@).$(notdir $@).d $<

lpxelinux.0: lpxelinux.bin
	cp -f $< $@

ldlinux.bss: ldlinux.bin
	dd if=$< of=$@ bs=512 count=1

ldlinux.sys: ldlinux.bin
	dd if=$< of=$@ bs=512 skip=2

codepage.cp: $(OBJ)/../codepage/$(CODEPAGE).cp
	cp -f $< $@

codepage.o: codepage.S codepage.cp

install: installer

install-lib: installer

install-all: install install-lib

netinstall: installer

tidy dist:
	find . -type f \( -name '*.o' -o -name '*.a' -o -name '.*.d' \
		-o -name '*.lst' \) -print | xargs -rt rm -f
	rm -f codepage.cp *.elf stupid.* patch.offset .depend
	rm -f *.elf.tmp *.sym
	rm -f *.lsr *.map *.sec *.raw
	rm -f $(OBSOLETE) $(LIB)

clean: tidy

spotless: clean
	rm -f $(BTARGET) *.bin *_bin.c

# Include dependencies file
-include $(shell find . -name '.*.d' -print)