kernel/mk/defines.mk

   1 #
   2 # This is a makefile fragment that's supposed to set the following
   3 # variables:
   4 #
   5 #   KERNEL_CFLAGS               - CFLAGS for kernel code
   6 #   KERNEL_LDFLAGS              - LDFLAGS for kernel code
   7 #
   8 # The bit-ness (32- or 64-bit) is selected by setting BITS to 32 or 64.
   9 #
  10 # The following can be tweaked to change up the KERNEL_CFLAGS variables:
  11 #
  12 #   KERNEL_CFLAGS               - CFLAGS used by both 32- & 64-bit
  13 #   KERNEL_CFLAGS_${BITS}
  14 #   KERNEL_CFLAGS_${CONFIG_MACH}
  15 #   KERNEL_CFLAGS_${CONFIG_MACH32}
  16 #   KERNEL_CFLAGS_${CONFIG_MACH64}
  17 #                               - CFLAGS used by specific builds
  18 #   KERNEL_INCLUDES             - -Ifoo directives used by all builds
  19 #   KERNEL_INCLUDES_${CONFIG_MACH}
  20 #                               - -Ifoo directives for specific build
  21 #   KERNEL_LDFLAGS              - LDFLAGS used by both 32- & 64-bit
  22 #
  23
  24 #
  25 # CFLAGS
  26 #
  27 # TODO: -fstack-protector will fail for 'unix'
  28 KERNEL_CFLAGS_ALL = \
  29         -pipe \
  30         -fident \
  31         -finline \
  32         -fno-inline-functions \
  33         -fno-builtin \
  34         -fno-asm \
  35         -fdiagnostics-show-option \
  36         -nodefaultlibs \
  37         -D_ASM_INLINES \
  38         -ffreestanding \
  39         -std=gnu99 \
  40         -g \
  41         -Wall \
  42         -Wextra \
  43         -Werror \
  44         -Wno-missing-braces \
  45         -Wno-sign-compare \
  46         -Wno-unknown-pragmas \
  47         -Wno-unused-parameter \
  48         -Wno-missing-field-initializers \
  49         -fno-inline-small-functions \
  50         -fno-inline-functions-called-once \
  51         -fno-ipa-cp \
  52         -fno-ipa-icf \
  53         -fno-clone-functions \
  54         -fstack-protector \
  55         -D_KERNEL \
  56         -D_SYSCALL32 \
  57         -D_DDI_STRICT \
  58         -D__sun \
  59         -nostdinc
  60
  61 # TODO: support for debug builds
  62 # KERNEL_CFLAGS += -DDEBUG
  63
  64 KERNEL_CFLAGS_32 = \
  65         -m32
  66
  67 KERNEL_CFLAGS_64 = \
  68         -m64 \
  69         -D_ELF64
  70
  71 KERNEL_CFLAGS_i386 = \
  72         -mno-mmx \
  73         -mno-sse
  74
  75 KERNEL_CFLAGS_i86 = \
  76         -O \
  77         -march=pentiumpro
  78
  79 KERNEL_CFLAGS_amd64 = \
  80         -O2 \
  81         -Dsun \
  82         -D__SVR4 \
  83         -Ui386 \
  84         -U__i386 \
  85         -mtune=opteron \
  86         -msave-args \
  87         -mcmodel=kernel \
  88         -fno-strict-aliasing \
  89         -fno-unit-at-a-time \
  90         -fno-optimize-sibling-calls \
  91         -mno-red-zone \
  92         -D_SYSCALL32_IMPL
  93
  94 KERNEL_CFLAGS_sparc =
  95 KERNEL_CFLAGS_sparcv7 =
  96 KERNEL_CFLAGS_sparcv9 =
  97
  98 KERNEL_INCLUDES = \
  99         -I${SRCTOP}/usr/src/uts/common \
 100         -I${SRCTOP}/arch/${CONFIG_MACH}/include \
 101         -I${SRCTOP}/include
 102
 103 KERNEL_INCLUDES_i386 = \
 104         -I${SRCTOP}/usr/src/uts/intel
 105
 106 KERNEL_INCLUDES_sparc =
 107
 108 KERNEL_CFLAGS = \
 109         ${KERNEL_CFLAGS_ALL} \
 110         ${KERNEL_CFLAGS_${BITS}} \
 111         ${KERNEL_CFLAGS_${CONFIG_MACH${BITS}}} \
 112         ${KERNEL_CFLAGS_${CONFIG_MACH}} \
 113         ${KERNEL_INCLUDES} \
 114         ${KERNEL_INCLUDES_${CONFIG_MACH}}
 115
 116 #
 117 # LDFLAGS
 118 #
 119 KERNEL_LDFLAGS = \
 120         -r
 121
 122 #
 123 # Programs
 124 #
 125 CC=/usr/gcc/7/bin/gcc
 126 LD=/usr/bin/ld
 127 CTFCONVERT=/opt/onbld/bin/i386/ctfconvert
 128 CTFMERGE=/opt/onbld/bin/i386/ctfmerge
 129
 130 #
 131 # Verbosity
 132 #
 133 .if ${VERBOSE:Uno} != "yes"
 134 CC := @echo "  CC ($${BITS})   $${.IMPSRC}";${CC}
 135 LD := @echo "  LD ($${BITS})   $${.TARGET}";${LD}
 136 CTFCONVERT := @${CTFCONVERT}
 137 .endif