2 # This Makefile covers the top part of the MI kernel build instructions
5 # Can be overridden by makeoptions or /etc/make.conf
8 # If a different binutils is installed in /usr/local it probably
9 # won't recognize LDVER or use the default, creating an incompatibility
10 # between buildkernel and nativekernel as well as between buildkernel and
11 # manual make's inside /usr/obj/usr/src/sys/KERNEL_CONFIG.
13 # /usr/local/bin must be removed from the path.
15 RMLDPATH
=/usr
/local
/bin
16 PATH
:=${PATH
:C
/${RMLDPATH}//g
}
22 # build this target if none is specified on the command line
25 # Set the platform and machine architectures
27 P
= ${MACHINE_PLATFORM}
34 #COPTFLAGS?=-O -pipe -flto -fno-fat-lto-objects
35 #COPTFLAGS?=-O -fthread-jumps -fcse-follow-jumps -fcrossjumping -frerun-cse-after-loop -fno-guess-branch-probability --param min-crossjump-insns=1 -pipe
36 #COPTFLAGS?=-O -fcrossjumping -pipe
37 #COPTFLAGS?=-Os -fno-strict-aliasing -pipe
38 #COPTFLAGS?=-O2 -fno-strict-aliasing -pipe
40 # always use external as(1)
42 COPTFLAGS
+= -no-integrated-as
45 .if
!defined
(NO_CPU_COPTFLAGS
)
46 COPTFLAGS
+= ${_CPUCFLAGS}
49 # don't use -I- so we can use proper source-relative locality for local
52 # -I. - this is to access the opt_*.h and use_*.h header files generated
53 # in the kernel build directory.
56 # - this is used to access forwarding header files for
57 # <machine/*.h> that exist in the cpu architecture but do not
58 # exist in the platform (machine/) architecture. This allows
59 # the platform to trivially override the cpu header files.
61 INCLUDES
= -nostdinc
-I.
-Iinclude
-I
$S
62 # Real kernel builds do not need /usr/include, but vkernel builds do.
64 .if
${MACHINE_PLATFORM} == "vkernel64"
65 .if exists
($S/..
/include)
66 INCLUDES
+= -I
$S/..
/include
68 INCLUDES
+= -I
/usr
/include
72 # This hack lets us use the Intel ACPICA code without spamming a new
73 # include path into 100+ source files.
74 .
include "$S/conf/acpi.mk"
75 INCLUDES
+= -I
${.OBJDIR
} -I
$S/${OSACPI_MI_DIR} -I
$S/${ACPICA_DIR}/include
77 # ... and the same for Atheros HAL
78 INCLUDES
+= -I
$S/dev
/netif
/ath
/ath_hal
-I
$S/contrib
/dev
/ath
/ath_hal
80 # Same thing for drm includes
81 INCLUDES
+= -I
$S/dev
/drm
/include
82 INCLUDES
+= -I
$S/dev
/drm
/include/drm
83 INCLUDES
+= -I
$S/dev
/drm
/include/uapi
84 INCLUDES
+= -I
$S/dev
/drm
/amd
/include
86 COPTS
= ${INCLUDES} ${IDENT} -D_KERNEL
-DHAVE_KERNEL_OPTION_HEADERS
-include opt_global.h
87 CFLAGS
= ${COPTFLAGS} ${KCFLAGS} ${CWARNFLAGS} -std
=${CSTD} ${DEBUG} ${COPTS}
89 # XXX LOCORE means "don't declare C stuff" not "for locore.s".
90 ASM_CFLAGS
= -x assembler-with-cpp
-DLOCORE
${CFLAGS
:N-flto
}
92 # Put configuration-specific C flags last so that they
93 # can override the others.
94 CFLAGS
+= ${CONF_CFLAGS}
96 # XXX handle this explicitly, fw wrappers use implicit .c.o: rule (LINT64)
97 .if defined
(FASTER_DEPEND
)
101 NORMAL_C
= ${CC} -c
${CFLAGS} ${.IMPSRC
}
102 NORMAL_C_C
= ${CC} -c
${CFLAGS} ${.IMPSRC
}
103 NORMAL_S
= ${CC} -c
${ASM_CFLAGS} ${.IMPSRC
}
105 NORMAL_M
= awk
-f
$S/tools
/makeobjops.awk
-- -c
$<; \
106 ${CC} -c
${CFLAGS} ${.PREFIX
}.c
108 NORMAL_FW
= uudecode
-o
${.TARGET
} ${.ALLSRC
}
109 NORMAL_FWO
= ${LD} -b binary
-d
-warn-common
-r
-o
${.TARGET
} ${.ALLSRC
:M
*.fw
}
111 .if
!defined
(NO_WERROR
) && (${CCVER} == "gcc47" ||
${CCVER} == "gcc80")
115 GEN_CFILES
= $S/platform
/$P/$M/genassym.c
116 SYSTEM_CFILES
= ioconf.c config.c
117 SYSTEM_SFILES
= $S/platform
/$P/$M/locore.s
118 SYSTEM_DEP
= Makefile
${SYSTEM_OBJS}
119 SYSTEM_OBJS
= locore.o
${OBJS} ioconf.o config.o hack.So
120 SYSTEM_LD
= @
${CC} -nostdlib
-ffreestanding
-Wl
,--hash-style
=sysv \
121 -Wl
,-Bdynamic
-Wl
,-T
,$S/platform
/$P/conf
/ldscript.
$M \
122 -Wl
,--export-dynamic
-Wl
,--dynamic-linker
,/red
/herring \
123 -o
${.TARGET
} -Wl
,-X
${SYSTEM_OBJS} vers.o
125 # In case of LTO provide all standard CFLAGS!
127 SYSTEM_LD
+= ${CFLAGS}
128 ## This one eats a lot of ram, may be needed to correctly link the kernel.
129 ## Default "balanced" might create kernel that "Fatal trap 12" on boot!!!
130 #. if !${CFLAGS:M-flto-partition=*}
131 #SYSTEM_LD+= -flto-partition=one -flto-report-wpa
135 # The max-page-size for gnu ld is 0x200000 on x86_64
136 # For the gold linker, it is only 0x1000 on both x86_64
137 # The penalty for changing the gold default for x86_64 is larger binaries
138 # and shared libraries, and forcing them to use more address space than
139 # required. The only application that needs such a large page size is the
140 # kernel itself, so leave the gold default alone and treat the kernel
141 # page size as an exception.
144 SYSTEM_LD
+= -Wl
,-z
,max-page-size
=0x200000
147 SYSTEM_LD_TAIL
= @
${OBJCOPY} --strip-symbol gcc2_compiled.
${.TARGET
} ; \
148 ${SIZE} ${.TARGET
} ; chmod
755 ${.TARGET
}
149 SYSTEM_DEP
+= $S/platform
/$P/conf
/ldscript.
$M
151 # Normalize output files to make it absolutely crystal clear to
152 # anyone examining the build directory.
155 FULLKERNEL
= ${KERNEL}.debug
156 .if defined
(INSTALLSTRIPPED
)
157 SELECTEDKERNEL
= ${KERNEL}.stripped
159 SELECTEDKERNEL
= ${KERNEL}.debug
162 FULLKERNEL
= ${KERNEL}.nodebug
163 SELECTEDKERNEL
= ${KERNEL}.stripped
167 MKMODULESENV
= MAKEOBJDIRPREFIX
=${.OBJDIR
} KERNBUILDDIR
=${.OBJDIR
}
168 .if defined
(MODULES_OVERRIDE
)
169 MKMODULESENV
+= MODULES_OVERRIDE
="${MODULES_OVERRIDE}"
172 MKMODULESENV
+= DEBUG
="${DEBUG}" DEBUG_FLAGS
="${DEBUG}"
174 .if defined
(INSTALLSTRIPPED
) || defined
(INSTALLSTRIPPEDMODULES
)
175 MKMODULESENV
+= INSTALLSTRIPPEDMODULES
=1
177 MKMODULESENV
+= MACHINE_ARCH
=${MACHINE_ARCH} MACHINE
=${MACHINE} MACHINE_PLATFORM
=${MACHINE_PLATFORM}