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
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.
13 # Copyright 2011 Nexenta Systems, Inc. All rights reserved.
16 LIBMDIR = $(SRC)/lib/libm
18 LIBMSRC = $(LIBMDIR)/common
20 CPP_CMD = $(CC) -E -Xs
24 ASSUFFIX = $(ASSUFFIX_$(MACH))
26 # With studio CSTD of neither enabled nor disabled is "no_lib", whereby we
27 # expect C99-the-language, but don't modify the behaviour of library routines.
28 # This is VERY IMPORTANT, as $(CSTD_GNU99), 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
33 # We must then, unfortunately, defeat the GNU compiler _defaulting_ to C99, by
34 # in that case setting it back to gnu89, which _also_ accepts C99 syntax as
35 # far as is important.
37 CFLAGS += -_gcc=-std=gnu89
38 CFLAGS64 += -_gcc=-std=gnu89
40 M4FLAGS = -D__STDC__ -DPIC
44 LDBLDIR = $(LDBLDIR_$(MACH))
46 LM_IL = $(LIBMDIR)/$(TARGET_ARCH)/src/locallibm.il
48 CFLAGS += $(C_PICFLAGS) $(XSTRCONST) $(LM_IL)
49 CFLAGS64 += $(C_PICFLAGS) $(XSTRCONST) $(LM_IL)
50 sparc_CFLAGS += -Wa,-xarch=v8plus
52 CPPFLAGS += -I$(LIBMSRC)/C \
53 -I$(LIBMSRC)/$(LDBLDIR) -I$(LIBMDIR)/$(TARGET_ARCH)/src
55 # GCC needs __C99FEATURES__ such that the implementations of isunordered,
56 # isgreaterequal, islessequal, etc, exist. This is basically equivalent to
57 # providing no -xc99 to Studio, in that it gets us the C99 language features,
58 # but not values-xpg6, the reason for which is outlined with CSTD.
59 CFLAGS += -_gcc=-D__C99FEATURES__
60 CFLAGS64 += -_gcc=-D__C99FEATURES__
62 # libm depends on integer overflow characteristics
63 CFLAGS += -_gcc=-fno-strict-overflow
64 CFLAGS64 += -_gcc=-fno-strict-overflow
66 $(DYNLIB) := LDLIBS += -lc
68 $(LINTLIB) := SRCS = $(LIBMSRC)/$(LINTSRC)
70 CLEANFILES += pics/*.s pics/*.S
72 FPDEF_amd64 = -DARCH_amd64
73 FPDEF_sparc = -DCG89 -DARCH_v8plus -DFPADD_TRAPS_INCOMPLETE_ON_NAN
74 FPDEF_sparcv9 = -DARCH_v9 -DFPADD_TRAPS_INCOMPLETE_ON_NAN
75 FPDEF = $(FPDEF_$(TARGET_ARCH))
77 ASFLAGS = -P -D_ASM $(FPDEF)
83 XARCH = $(XARCH_$(TARGET_ARCH))
85 ASOPT_sparc = -xarch=$(XARCH) $(AS_PICFLAGS)
86 ASOPT_sparcv9 = -xarch=$(XARCH) $(AS_PICFLAGS)
88 ASOPT_amd64 = -xarch=$(XARCH) $(AS_PICFLAGS)
89 ASOPT = $(ASOPT_$(TARGET_ARCH))
93 CPPFLAGS_sparc = -DFPADD_TRAPS_INCOMPLETE_ON_NAN \
94 -DFDTOS_TRAPS_INCOMPLETE_IN_FNS_MODE
96 CPPFLAGS += $(CPPFLAGS_$(MACH))
97 ASFLAGS += $(CPPFLAGS)