693 Opensource replacement of sunwlibm

Reviewed by: Igor Kozhukhov ikozhukhov@gmail.com
Reviewed by: Keith M Wesolowski <keith.wesolowski@joyent.com>
Reviewed by: Richard Lowe <richlowe@richlowe.net>
Approved by: Dan McDonald <danmcd@omniti.com>

1 files changed, 93 insertions, 0 deletions

diff --git a/usr/src/lib/libm/Makefile.libm.com b/usr/src/lib/libm/Makefile.libm.com
new file mode 100644
index 0000000000..f6f9725596
--- /dev/null
+++ b/usr/src/lib/libm/Makefile.libm.com
@@ -0,0 +1,93 @@
+#
+# This file and its contents are supplied under the terms of the
+# Common Development and Distribution License ("CDDL"), version 1.0.
+# You may only use this file in accordance with the terms of version
+# 1.0 of the CDDL.
+#
+# A full copy of the text of the CDDL should have accompanied this
+# source.  A copy of the CDDL is also available via the Internet at
+# http://www.illumos.org/license/CDDL.
+#
+
+#
+# Copyright 2011 Nexenta Systems, Inc.  All rights reserved.
+#
+
+LIBMDIR		= $(SRC)/lib/libm
+
+LIBMSRC		= $(LIBMDIR)/common
+
+CPP_CMD		= $(CC) -E -Xs
+
+ASSUFFIX_sparc	= S
+ASSUFFIX_i386	= s
+ASSUFFIX	= $(ASSUFFIX_$(MACH))
+
+# C99MODE of neither enabled nor disabled is "no_lib", whereby we expect
+# C99-the-language, but don't modify the behaviour of library routines.  This
+# is VERY IMPORTANT, as -xc99=%all, for instance, would link us with
+# values-xpg6, which would introduce an __xpg6 to our object with the C99
+# flags set, causing us to default C99 libm behaviour on, breaking
+# compatibility.
+C99MODE		=
+
+M4FLAGS		= -D__STDC__ -DELFOBJ -DPIC
+
+LDBLDIR_sparc	= Q
+LDBLDIR_i386	= LD
+LDBLDIR		= $(LDBLDIR_$(MACH))
+
+LM_IL		= $(LIBMDIR)/$(TARGET_ARCH)/src/locallibm.il
+
+CFLAGS		+= $(C_PICFLAGS) -D__INLINE $(XSTRCONST) $(LM_IL)
+CFLAGS64	+= $(C_PICFLAGS) -D__INLINE $(XSTRCONST) $(LM_IL)
+sparc_CFLAGS	+= -Wa,-xarch=v8plus
+
+CPPFLAGS	+= -DELFOBJ \
+		-DLIBM_MT_FEX_SYNC \
+		-I$(LIBMSRC)/C \
+		-I$(LIBMSRC)/$(LDBLDIR) -I$(LIBMDIR)/$(TARGET_ARCH)/src
+
+# GCC needs __C99FEATURES__ such that the implementations of isunordered,
+# isgreaterequal, islessequal, etc, exist.  This is basically equivalent to
+# providing no -xc99 to Studio, in that it gets us the C99 language features,
+# but not values-xpg6, the reason for which is outline with C99MODE.
+CFLAGS		+= -_gcc=-D__C99FEATURES__
+CFLAGS64	+= -_gcc=-D__C99FEATURES__
+
+# libm depends on integer overflow characteristics
+CFLAGS		+= -_gcc=-fno-strict-overflow
+CFLAGS64	+= -_gcc=-fno-strict-overflow
+
+$(DYNLIB) 	:= LDLIBS += -lc
+
+$(LINTLIB) 	:= SRCS = $(LIBMSRC)/$(LINTSRC)
+
+CLEANFILES 	+= pics/*.s pics/*.S
+
+FPDEF_amd64	= -DARCH_amd64
+FPDEF_sparc	= -DCG89 -DARCH_v8plus -DFPADD_TRAPS_INCOMPLETE_ON_NAN
+FPDEF_sparcv9	= -DARCH_v9 -DFPADD_TRAPS_INCOMPLETE_ON_NAN
+FPDEF		= $(FPDEF_$(TARGET_ARCH))
+
+ASFLAGS		= -P -D_ASM $(FPDEF)
+
+XARCH_sparc	= v8plus
+XARCH_sparcv9	= v9
+XARCH_i386	= f80387
+XARCH_amd64	= amd64
+XARCH		= $(XARCH_$(TARGET_ARCH))
+
+ASOPT_sparc	= -xarch=$(XARCH) $(AS_PICFLAGS)
+ASOPT_sparcv9	= -xarch=$(XARCH) $(AS_PICFLAGS)
+ASOPT_i386	= 
+ASOPT_amd64	= -xarch=$(XARCH) $(AS_PICFLAGS)
+ASOPT		= $(ASOPT_$(TARGET_ARCH))
+
+ASFLAGS		+= $(ASOPT)
+
+CPPFLAGS_sparc = -DFPADD_TRAPS_INCOMPLETE_ON_NAN \
+	-DFDTOS_TRAPS_INCOMPLETE_IN_FNS_MODE
+
+CPPFLAGS	+= $(CPPFLAGS_$(MACH))
+ASFLAGS		+= $(CPPFLAGS)