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 # hack because genassym.c includes sys/bus.h which includes these.
57 genassym.o: bus_if.h device_if.h
59 SYSTEM_LD_ = ${LD} -Bdynamic -T ldscript.$M.noheader ${_LDFLAGS} \
60 -warn-common -export-dynamic -dynamic-linker /red/herring -o \
61 ${FULLKERNEL}.noheader -X ${SYSTEM_OBJS} vers.o
62 SYSTEM_LD_TAIL +=;sed s/" + SIZEOF_HEADERS"// ldscript.$M\
63 >ldscript.$M.noheader; \
65 ${OBJCOPY} -S -O binary ${FULLKERNEL}.noheader \
67 rm ${FULLKERNEL}.noheader
70 $S/$M/$M/cpufunc_asm_arm9.S \
71 $S/$M/$M/cpufunc_asm_xscale.S $S/$M/$M/cpufunc_asm.S \
72 $S/$M/$M/cpufunc_asm_xscale_c3.S $S/$M/$M/cpufunc_asm_armv5_ec.S \
73 $S/$M/$M/cpufunc_asm_fa526.S $S/$M/$M/cpufunc_asm_sheeva.S \
74 $S/$M/$M/cpufunc_asm_pj4b.S $S/$M/$M/cpufunc_asm_armv6.S \
75 $S/$M/$M/cpufunc_asm_armv7.S
77 .if defined(KERNPHYSADDR)
78 KERNEL_EXTRA=trampoline
79 KERNEL_EXTRA_INSTALL=kernel.gz.tramp
80 trampoline: ${KERNEL_KO}.tramp
81 ${KERNEL_KO}.tramp: ${KERNEL_KO} $S/$M/$M/inckern.S $S/$M/$M/elf_trampoline.c
82 echo "#define KERNNAME \"${KERNEL_KO}.tmp\"" >opt_kernname.h
83 sed s/${KERNVIRTADDR}/${KERNPHYSADDR}/ ldscript.$M > ldscript.$M.tramp
84 sed s/" + SIZEOF_HEADERS"// ldscript.$M.tramp > \
85 ldscript.$M.tramp.noheader
86 echo "#include <machine/asm.h>" >tmphack.S
87 echo "ENTRY(_start)" >>tmphack.S
88 echo "bl _startC" >>tmphack.S
89 ${OBJCOPY} --strip-symbol '$$d' --strip-symbol '$$a' \
90 -g --strip-symbol '$$t' ${FULLKERNEL} ${KERNEL_KO}.tmp
91 eval $$(stat -s ${KERNEL_KO}.tmp) && \
92 echo "#define KERNSIZE $$st_size" >>opt_kernname.h
93 ${CC} -O -nostdlib -I. -I$S \
94 -Xlinker -T -Xlinker ldscript.$M.tramp \
97 $S/$M/$M/elf_trampoline.c \
100 -o ${KERNEL_KO}.tramp
101 ${CC} -O -nostdlib -I. -I$S \
102 -Xlinker -T -Xlinker ldscript.$M.tramp.noheader \
105 $S/$M/$M/elf_trampoline.c \
108 -o ${KERNEL_KO}.tramp.noheader
109 ${OBJCOPY} -S -O binary ${KERNEL_KO}.tramp.noheader \
110 ${KERNEL_KO}.tramp.bin
111 ${OBJCOPY} ${STRIP_FLAGS} ${KERNEL_KO}.tmp
112 echo "#define KERNNAME \"${KERNEL_KO}.tmp.gz\"" >opt_kernname.h
113 eval $$(stat -s ${KERNEL_KO}.tmp) && \
114 echo "#define KERNSIZE $$st_size" >>opt_kernname.h
115 gzip -f9 ${KERNEL_KO}.tmp
116 eval $$(stat -s ${KERNEL_KO}.tmp.gz) && \
117 echo "#define KERNCOMPSIZE $$st_size" >>opt_kernname.h
118 ${CC} -O2 -ffreestanding -I. -I$S -c \
119 -DKZIP -DELF_TRAMPOLINE \
122 ${CC} -O -nostdlib -I. -I$S \
123 -Xlinker -T -Xlinker ldscript.$M.tramp \
124 -DKZIP -DELF_TRAMPOLINE \
126 $S/$M/$M/elf_trampoline.c \
130 -o ${KERNEL_KO}.gz.tramp
131 ${CC} -O -nostdlib -I. -I$S \
132 -Xlinker -T -Xlinker ldscript.$M.tramp.noheader \
133 -DKZIP -DELF_TRAMPOLINE \
135 $S/$M/$M/elf_trampoline.c \
139 -o ${KERNEL_KO}.tramp.noheader
140 ${OBJCOPY} -S -O binary ${KERNEL_KO}.tramp.noheader \
141 ${KERNEL_KO}.gz.tramp.bin
142 rm ${KERNEL_KO}.tmp.gz ${KERNEL_KO}.tramp.noheader opt_kernname.h \
143 inflate-tramp.o tmphack.S
158 CLEAN+= ldscript.$M ${KERNEL_KO}.bin ldscript.$M.noheader
160 CLEAN+= ${KERNEL_KO}.tramp ${KERNEL_KO}.tramp.bin ldscript.$M.tramp \
161 ldscript.$M.tramp.noheader ${KERNEL_KO}.gz.tramp \
162 ${KERNEL_KO}.gz.tramp.bin
164 ldscript.$M: $S/conf/ldscript.$M
165 cat $S/conf/ldscript.$M|sed s/KERNPHYSADDR/${KERNPHYSADDR}/g| \
166 sed s/KERNVIRTADDR/${KERNVIRTADDR}/g > ldscript.$M
169 .include "$S/conf/kern.post.mk"