share/mk/bsd.cpu.clang.mk

   1 # Set default CPU compile flags and baseline CPUTYPE for each arch.  The
   2 # compile flags must support the minimum CPU type for each architecture but
   3 # may tune support for more advanced processors.
   4
   5 generic_x86_64= x86_64 mmx sse sse2
   6 generic_i386=   i386
   7
   8 .if !defined(CPUTYPE) || empty(CPUTYPE) || ${CPUTYPE} == "native"
   9
  10 . if defined(CPUTYPE) && ${CPUTYPE:Mnative}
  11 _CPUCFLAGS=     -march=native
  12 . else
  13 _CPUCFLAGS=
  14 . endif
  15
  16 MACHINE_CPU=    ${generic_${MACHINE_ARCH}}
  17
  18 .else
  19
  20 known_x86_64=   x86_64 i386
  21 known_i386=     i386
  22
  23 . if defined(known_${MACHINE_ARCH}) && \
  24      !empty(known_${MACHINE_ARCH}:M${CPUTYPE})          # CID: Check CPUTYPE
  25
  26 # i386 used for 32-bit BIOS-based boot loaders
  27
  28 C_x86_64=       ${generic_x86_64}
  29 C_i386=         ${generic_i386}
  30
  31 _CPUCFLAGS=     -march=${CPUTYPE}
  32 MACHINE_CPU=    ${C_${CPUTYPE:S|-||}}
  33
  34 . else                                                  # CID: Check CPUTYPE
  35
  36 # CPUTYPE was defined and was not empty, but the value does not match known
  37 # CPU types of the defined MACHINE_ARCH.  Set -march to native and define
  38 # generic features based on MACHINE_ARCH
  39
  40 _CPUCFLAGS=     -march=native
  41 MACHINE_CPU=    ${generic_${MACHINE_ARCH}}
  42
  43 . endif                                                 # CID: Check CPUTYPE
  44
  45 .endif