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
22 ASSUFFIX = $(ASSUFFIX_$(MACH))
24 # With studio C99MODE of neither enabled nor disabled is "no_lib", whereby we
25 # expect C99-the-language, but don't modify the behaviour of library routines.
26 # This is VERY IMPORTANT, as -std=gnu99, for instance, would link us with
27 # values-xpg6, which would introduce an __xpg6 to our object with the C99
28 # flags set, causing us to default C99 libm behaviour on, breaking
31 # We must then, unfortunately, defeat the GNU compiler _defaulting_ to C99, by
32 # in that case setting it back to gnu89, which _also_ accepts C99 syntax as
33 # far as is important.
36 CFLAGS64 += -std=gnu89
38 M4FLAGS = -D__STDC__ -DPIC
42 LDBLDIR = $(LDBLDIR_$(MACH))
44 CFLAGS += $(C_PICFLAGS)
45 CFLAGS64 += $(C_PICFLAGS)
46 sparc_CFLAGS += -Wa,-xarch=v8plus
48 CPPFLAGS += -I$(LIBMSRC)/C \
49 -I$(LIBMSRC)/$(LDBLDIR) -I$(LIBMDIR)/$(TARGET_ARCH)/src
51 # GCC needs __C99FEATURES__ such that the implementations of isunordered,
52 # isgreaterequal, islessequal, etc, exist. This gets us the C99 language
53 # features, but not values-xpg6, the reason for which is outlined with
55 CFLAGS += -D__C99FEATURES__
56 CFLAGS64 += -D__C99FEATURES__
58 # libm depends on integer overflow characteristics
59 CFLAGS += -fno-strict-overflow
60 CFLAGS64 += -fno-strict-overflow
62 $(DYNLIB) := LDLIBS += -lc
64 CLEANFILES += pics/*.s pics/*.S
66 FPDEF_amd64 = -DARCH_amd64
67 FPDEF_sparc = -DCG89 -DARCH_v8plus -DFPADD_TRAPS_INCOMPLETE_ON_NAN
68 FPDEF_sparcv9 = -DARCH_v9 -DFPADD_TRAPS_INCOMPLETE_ON_NAN
69 FPDEF = $(FPDEF_$(TARGET_ARCH))
71 ASFLAGS = -D_ASM $(FPDEF)
77 XARCH = $(XARCH_$(TARGET_ARCH))
79 ASOPT_sparc = -xarch=$(XARCH) $(AS_PICFLAGS)
80 ASOPT_sparcv9 = -xarch=$(XARCH) $(AS_PICFLAGS)
82 ASOPT_amd64 = $(AS_PICFLAGS)
83 ASOPT = $(ASOPT_$(TARGET_ARCH))
87 CPPFLAGS_sparc = -DFPADD_TRAPS_INCOMPLETE_ON_NAN \
88 -DFDTOS_TRAPS_INCOMPLETE_IN_FNS_MODE
90 CPPFLAGS += $(CPPFLAGS_$(MACH))
91 ASFLAGS += $(CPPFLAGS)