1 #
   2 # This file and its contents are supplied under the terms of the
   3 # Common Development and Distribution License ("CDDL"), version 1.0.
   4 # You may only use this file in accordance with the terms of version
   5 # 1.0 of the CDDL.
   6 #
   7 # A full copy of the text of the CDDL should have accompanied this
   8 # source.  A copy of the CDDL is also available via the Internet at
   9 # http://www.illumos.org/license/CDDL.
  10 #
  11 
  12 #
  13 # Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
  14 #
  15 
  16 LIBMDIR         = $(SRC)/lib/libm
  17 
  18 LIBMSRC         = $(LIBMDIR)/common
  19 
  20 CPP_CMD         = $(CC) -E -Xs
  21 
  22 ASSUFFIX_sparc  = S
  23 ASSUFFIX_i386   = s
  24 ASSUFFIX        = $(ASSUFFIX_$(MACH))
  25 
  26 # C99MODE of neither enabled nor disabled is "no_lib", whereby we expect
  27 # C99-the-language, but don't modify the behaviour of library routines.  This
  28 # is VERY IMPORTANT, as -xc99=%all, for instance, would link us with
  29 # values-xpg6, which would introduce an __xpg6 to our object with the C99
  30 # flags set, causing us to default C99 libm behaviour on, breaking
  31 # compatibility.
  32 C99MODE         =
  33 
  34 M4FLAGS         = -D__STDC__ -DELFOBJ -DPIC
  35 
  36 LDBLDIR_sparc   = Q
  37 LDBLDIR_i386    = LD
  38 LDBLDIR         = $(LDBLDIR_$(MACH))
  39 
  40 LM_IL           = $(LIBMDIR)/$(TARGET_ARCH)/src/locallibm.il
  41 
  42 CFLAGS          += $(C_PICFLAGS) -D__INLINE $(XSTRCONST) $(LM_IL)
  43 CFLAGS64        += $(C_PICFLAGS) -D__INLINE $(XSTRCONST) $(LM_IL)
  44 sparc_CFLAGS    += -Wa,-xarch=v8plus
  45 
  46 CDEF_i386       = -DCOMPARISON_MACRO_BUG
  47 CPPFLAGS        += -DELFOBJ \
  48                 -DLIBM_MT_FEX_SYNC \
  49                 $(CDEF_$(TARGET_ARCH)) \
  50                 -I$(LIBMSRC)/C \
  51                 -I$(LIBMSRC)/$(LDBLDIR) -I$(LIBMDIR)/$(TARGET_ARCH)/src
  52 
  53 # GCC needs __C99FEATURES__ such that the implementations of isunordered,
  54 # isgreaterequal, islessequal, etc, exist.  This is basically equivalent to
  55 # providing no -xc99 to Studio, in that it gets us the C99 language features,
  56 # but not values-xpg6, the reason for which is outline with C99MODE.
  57 CFLAGS          += -_gcc=-D__C99FEATURES__
  58 CFLAGS64        += -_gcc=-D__C99FEATURES__
  59 
  60 # libm depends on integer overflow characteristics
  61 CFLAGS          += -_gcc=-fno-strict-overflow
  62 CFLAGS64        += -_gcc=-fno-strict-overflow
  63 
  64 $(DYNLIB)       := LDLIBS += -lc
  65 
  66 $(LINTLIB)      := SRCS = $(LIBMSRC)/$(LINTSRC)
  67 
  68 CLEANFILES      += pics/*.s pics/*.S
  69 
  70 FPDEF_amd64     = -DARCH_amd64
  71 FPDEF_sparc     = -DCG89 -DARCH_v8plus -DFPADD_TRAPS_INCOMPLETE_ON_NAN
  72 FPDEF_sparcv9   = -DARCH_v9 -DFPADD_TRAPS_INCOMPLETE_ON_NAN
  73 FPDEF           = $(FPDEF_$(TARGET_ARCH))
  74 
  75 ASFLAGS         = -P -D_ASM $(FPDEF)
  76 
  77 XARCH_sparc     = v8plus
  78 XARCH_sparcv9   = v9
  79 XARCH_i386      = f80387
  80 XARCH_amd64     = amd64
  81 XARCH           = $(XARCH_$(TARGET_ARCH))
  82 
  83 ASOPT_sparc     = -xarch=$(XARCH) $(AS_PICFLAGS)
  84 ASOPT_sparcv9   = -xarch=$(XARCH) $(AS_PICFLAGS)
  85 ASOPT_i386      = 
  86 ASOPT_amd64     = -xarch=$(XARCH) $(AS_PICFLAGS)
  87 ASOPT           = $(ASOPT_$(TARGET_ARCH))
  88 
  89 ASFLAGS         += $(ASOPT)
  90 
  91 CPPFLAGS_sparc = -DFPADD_TRAPS_INCOMPLETE_ON_NAN \
  92         -DFDTOS_TRAPS_INCOMPLETE_IN_FNS_MODE
  93 
  94 CPPFLAGS        += $(CPPFLAGS_$(MACH))
  95 ASFLAGS         += $(CPPFLAGS)