programs/use_gcc.lua

   1 CFLAGS_GENERIC = "-fno-ident -fomit-frame-pointer -fno-stack-check -fno-stack-protector -mno-stack-arg-probe -fno-exceptions -fno-asynchronous-unwind-tables -ffast-math -mno-ms-bitfields -march=pentium-mmx"
   2 CFLAGS_OPTIMIZE_SIZE = "-Os -mpreferred-stack-boundary=2 " .. CFLAGS_GENERIC
   3 CFLAGS_OPTIMIZE_SPEED = "-O2 -mpush-args -mno-accumulate-outgoing-args " .. CFLAGS_GENERIC
   4 -- The following could in specific cases be marginally faster CFLAGS_OPTIMIZE_SPEED,
   5 -- and in all cases gives a notable overhead in size.
   6 CFLAGS_OPTIMIZE_SPEED_INSANE = "-O2 " .. CFLAGS_GENERIC
   7 -- Default is optimizing by size. Override on per-project or per-file basis.
   8
   9 DEFINES =" -D_KOLIBRI_ -D_KOLIBRI -DKOLIBRI -D_KOS_ -D_KOS -DKOS -U_Win32 -UWIN32 -U_WIN32 -U__MINGW32__ -U__WIN32__ "
  10 CFLAGS = CFLAGS_OPTIMIZE_SIZE
  11
  12 CFLAGS_c = "" -- extra flags for *.c
  13 CFLAGS_cpp = " -fno-rtti" -- extra flags for *.cpp
  14 LDFLAGS = "-static -nostdlib -n --file-alignment=16 --section-alignment=16"
  15 INCLUDES = ""
  16 LIBS = ""
  17 LIBDEPS = {}
  18 OBJS = {}
  19
  20 function compile_gcc(input, output)
  21   if not output then output = '%B.o' end
  22   tup.append_table(OBJS,
  23     tup.foreach_rule(input, "kos32-gcc -c " .. CFLAGS .. DEFINES .. "$(CFLAGS_%e) " .. INCLUDES .. " -o %o %f", output)
  24   )
  25 end
  26
  27 function link_gcc(input, output)
  28   if not output then input,output = OBJS,input end
  29   if STARTUP then
  30     table.insert(LIBDEPS, STARTUP)
  31     LDFLAGS = LDFLAGS .. " " .. STARTUP
  32   end
  33   if tup.getconfig("HELPERDIR") == "" and #LIBDEPS then
  34     if type(input) == "string" then input = {input} end
  35     if not input.extra_inputs then input.extra_inputs = {} end
  36     tup.append_table(input.extra_inputs, LIBDEPS)
  37   end
  38
  39   if type(output) == "string" then output = {output} end
  40   if not output.extra_outputs then output.extra_outputs = {} end
  41   table.insert(output.extra_outputs, output[1] .. ".map")
  42
  43   tup.rule(input,
  44     "kos32-ld " .. LDFLAGS .. " -o %o %f -Map %o.map " .. LIBS .. " && kos32-objcopy %o -O binary " .. tup.getconfig("KPACK_CMD"),
  45     output)
  46 end