1 # Makefile.arm -- with config changes.
2 # Copyright 1990 W. Jolitz
3 # from: @(#)Makefile.i386 7.1 5/10/91
8 # This makefile is constructed from a machine description:
10 # Most changes should be made in the machine description
11 # /sys/arm/conf/``machineid''
12 # after which you should do
14 # Generic makefile changes should be made in
15 # /sys/conf/Makefile.arm
16 # after which config should be rerun for all machines.
19 # Which version of config(8) is required.
31 .include "$S/conf/kern.pre.mk"
33 INCLUDES+= -I$S/contrib/libfdt -I$S/gnu/dts/include
35 SYSTEM_LD:= ${SYSTEM_LD:$S/conf/ldscript.$M=ldscript.$M}
36 SYSTEM_DEP:= ${SYSTEM_DEP:$S/conf/ldscript.$M=ldscript.$M}
38 .if !defined(DEBUG) && !defined(PROFLEVEL)
42 # We don't support gcc's thump interwork stuff, so disable it
43 CFLAGS.gcc += -mno-thumb-interwork
45 # We generally don't want fpu instructions in the kernel.
46 CFLAGS.clang += -mfpu=none
48 .if !empty(DDB_ENABLED)
49 CFLAGS += -funwind-tables
50 .if ${COMPILER_TYPE} == "clang" && ${COMPILER_VERSION} < 30500
51 # clang < 3.5.0 requires us to tell it to emit assembly with unwind information
52 CFLAGS += -mllvm -arm-enable-ehabi
56 # "makeoptions KERNVIRTADDR=" is now optional, supply the default value.
57 .if empty(KERNVIRTADDR)
58 KERNVIRTADDR= 0xc0000000
61 # hack because genassym.c includes sys/bus.h which includes these.
62 genassym.o: bus_if.h device_if.h
64 SYSTEM_LD_ = ${LD} -m ${LD_EMULATION} -Bdynamic -T ldscript.$M.noheader \
65 ${_LDFLAGS} --no-warn-mismatch --warn-common --export-dynamic \
66 --dynamic-linker /red/herring \
67 -o ${FULLKERNEL}.noheader -X ${SYSTEM_OBJS} vers.o
68 SYSTEM_LD_TAIL +=;sed s/" + SIZEOF_HEADERS"// ldscript.$M\
69 >ldscript.$M.noheader; \
71 ${OBJCOPY} -S -O binary ${FULLKERNEL}.noheader \
73 rm ${FULLKERNEL}.noheader
76 $S/$M/$M/cpufunc_asm_arm9.S \
77 $S/$M/$M/cpufunc_asm_xscale.S $S/$M/$M/cpufunc_asm.S \
78 $S/$M/$M/cpufunc_asm_xscale_c3.S $S/$M/$M/cpufunc_asm_armv5_ec.S \
79 $S/$M/$M/cpufunc_asm_fa526.S $S/$M/$M/cpufunc_asm_sheeva.S \
80 $S/$M/$M/cpufunc_asm_pj4b.S $S/$M/$M/cpufunc_asm_armv6.S \
81 $S/$M/$M/cpufunc_asm_armv7.S
83 .if ${MACHINE_ARCH:Marmv[67]*} == "" && defined(KERNPHYSADDR)
84 KERNEL_EXTRA=trampoline
85 KERNEL_EXTRA_INSTALL=kernel.gz.tramp
86 trampoline: ${KERNEL_KO}.tramp
87 ${KERNEL_KO}.tramp: ${KERNEL_KO} $S/$M/$M/inckern.S $S/$M/$M/elf_trampoline.c
88 echo "#define KERNNAME \"${KERNEL_KO}.tmp\"" >opt_kernname.h
89 sed s/${KERNVIRTADDR}/${KERNPHYSADDR}/ ldscript.$M > ldscript.$M.tramp
90 sed s/" + SIZEOF_HEADERS"// ldscript.$M.tramp > \
91 ldscript.$M.tramp.noheader
92 echo "#include <machine/asm.h>" >tmphack.S
93 echo "ENTRY(_start)" >>tmphack.S
94 echo "bl _startC" >>tmphack.S
95 ${OBJCOPY} --strip-symbol '$$d' --strip-symbol '$$a' \
96 -g --strip-symbol '$$t' ${FULLKERNEL} ${KERNEL_KO}.tmp
97 eval $$(stat -s ${KERNEL_KO}.tmp) && \
98 echo "#define KERNSIZE $$st_size" >>opt_kernname.h
99 ${CC} -O -nostdlib -I. -I$S \
100 -Xlinker -T -Xlinker ldscript.$M.tramp \
103 $S/$M/$M/elf_trampoline.c \
106 -o ${KERNEL_KO}.tramp
107 ${CC} -O -nostdlib -I. -I$S \
108 -Xlinker -T -Xlinker ldscript.$M.tramp.noheader \
111 $S/$M/$M/elf_trampoline.c \
114 -o ${KERNEL_KO}.tramp.noheader
115 ${OBJCOPY} -S -O binary ${KERNEL_KO}.tramp.noheader \
116 ${KERNEL_KO}.tramp.bin
117 ${OBJCOPY} ${STRIP_FLAGS} ${KERNEL_KO}.tmp
118 echo "#define KERNNAME \"${KERNEL_KO}.tmp.gz\"" >opt_kernname.h
119 eval $$(stat -s ${KERNEL_KO}.tmp) && \
120 echo "#define KERNSIZE $$st_size" >>opt_kernname.h
121 gzip -f9 ${KERNEL_KO}.tmp
122 eval $$(stat -s ${KERNEL_KO}.tmp.gz) && \
123 echo "#define KERNCOMPSIZE $$st_size" >>opt_kernname.h
124 ${CC} -O2 -ffreestanding -I. -I$S -c \
125 -DKZIP -DELF_TRAMPOLINE \
128 ${CC} -O -nostdlib -I. -I$S \
129 -Xlinker -T -Xlinker ldscript.$M.tramp \
130 -DKZIP -DELF_TRAMPOLINE \
132 $S/$M/$M/elf_trampoline.c \
136 -o ${KERNEL_KO}.gz.tramp
137 ${CC} -O -nostdlib -I. -I$S \
138 -Xlinker -T -Xlinker ldscript.$M.tramp.noheader \
139 -DKZIP -DELF_TRAMPOLINE \
141 $S/$M/$M/elf_trampoline.c \
145 -o ${KERNEL_KO}.tramp.noheader
146 ${OBJCOPY} -S -O binary ${KERNEL_KO}.tramp.noheader \
147 ${KERNEL_KO}.gz.tramp.bin
148 rm ${KERNEL_KO}.tmp.gz ${KERNEL_KO}.tramp.noheader opt_kernname.h \
149 inflate-tramp.o tmphack.S
164 CLEAN+= ldscript.$M ${KERNEL_KO}.bin ldscript.$M.noheader
166 CLEAN+= ${KERNEL_KO}.tramp ${KERNEL_KO}.tramp.bin ldscript.$M.tramp \
167 ldscript.$M.tramp.noheader ${KERNEL_KO}.gz.tramp \
168 ${KERNEL_KO}.gz.tramp.bin
170 ldscript.$M: $S/conf/ldscript.$M
171 cat $S/conf/ldscript.$M|sed s/KERNPHYSADDR/${KERNPHYSADDR}/g| \
172 sed s/KERNVIRTADDR/${KERNVIRTADDR}/g > ldscript.$M
175 .include "$S/conf/kern.post.mk"