libports: port of ffi library

required by jdk

issue #2791

Forein function interface library, which takes care of calling
conventions of different platforms.

repos/libports/lib/import/import-ffi.mk

@@ -0,0 +1,7 @@
+ifeq ($(filter-out $(SPECS),x86_64),)
+INC_DIR += $(call select_from_ports,ffi)/include/ffi/x86_64
+endif
+
+ifeq ($(filter-out $(SPECS),arm),)
+INC_DIR += $(call select_from_ports,ffi)/include/ffi/arm
+endif

repos/libports/lib/mk/spec/arm/ffi.mk

@@ -0,0 +1,20 @@
+SHARED_LIB = yes
+
+LIBS = libc
+
+FFI_PORT = $(call select_from_ports,ffi)/src/lib/ffi
+
+INC_DIR = $(FFI_PORT)/include
+
+INC_DIR += $(call select_from_ports,ffi)/include/ffi/arm \
+           $(REP_DIR)/src/lib/ffi
+
+CC_OPT = -DFFI_NO_RAW_API=0
+
+SRC_C = prep_cif.c types.c ffi.c
+SRC_S = sysv.S
+
+vpath prep_cif.c $(FFI_PORT)/src
+vpath types.c    $(FFI_PORT)/src
+vpath ffi.c    $(FFI_PORT)/src/arm
+vpath sysv.S   $(FFI_PORT)/src/arm

repos/libports/lib/mk/spec/x86_64/ffi.mk

@@ -0,0 +1,22 @@
+SHARED_LIB = yes
+
+LIBS = libc
+
+FFI_PORT = $(call select_from_ports,ffi)/src/lib/ffi
+
+INC_DIR = $(FFI_PORT)/include
+
+INC_DIR += $(call select_from_ports,ffi)/include/ffi/x86_64 \
+           $(REP_DIR)/src/lib/ffi
+
+CC_OPT = -DFFI_NATAIVE_RAW_API=1 -DFFI_NO_RAW_API=0
+
+SRC_C = prep_cif.c types.c ffi64.c
+SRC_S = unix64.S
+
+CC_OPT_unix64 = -DHAVE_AS_X86_PCREL=1
+
+vpath prep_cif.c $(FFI_PORT)/src
+vpath types.c    $(FFI_PORT)/src
+vpath ffi64.c    $(FFI_PORT)/src/x86
+vpath unix64.S   $(FFI_PORT)/src/x86

repos/libports/ports/ffi.hash

@@ -0,0 +1 @@
+77c655dd76559e5fee6adbdde54d6d902e708865

repos/libports/ports/ffi.port

@@ -0,0 +1,46 @@
+LICENSE   := MIT
+DOWNLOADS := ffi.archive
+VERSION   := 3.2.1
+
+URL(ffi) := https://github.com/libffi/libffi/archive/v$(VERSION).tar.gz
+SHA(ffi) := 4d8dabf78a9892f207f2968453d4eceb6c48ec26
+DIR(ffi) := src/lib/ffi
+
+$(call check_tool,sed)
+
+DIRS := include/ffi/x86_64 include/ffi/arm
+DIR_CONTENT(include/ffi/x86_64) := src/lib/ffi/src/x86/ffitarget.h
+DIR_CONTENT(include/ffi/arm) := src/lib/ffi/src/arm/ffitarget.h
+
+gen_inc   := ffi.h
+
+gen_files := $(addprefix include/ffi/x86_64/,$(gen_inc)) \
+             $(addprefix include/ffi/arm/,$(gen_inc))
+
+default: $(gen_files)
+
+$(gen_files): _dirs
+
+subst_x86_64 := \
+	"@TARGET@/X86_64" \
+	"@HAVE_LONG_DOUBLE@/1" \
+	"@HAVE_LONG_DOUBLE_VARIANT@/0" \
+	"@FFI_EXEC_TRAMPOLINE_TABLE@/0"
+
+subst_ARM := \
+	"@TARGET@/ARM" \
+	"@HAVE_LONG_DOUBLE@/0" \
+	"@HAVE_LONG_DOUBLE_VARIANT@/0" \
+	"@FFI_EXEC_TRAMPOLINE_TABLE@/0"
+
+apply_substitutions = $(VERBOSE)for i in $(2); do sed -i "s/$$i/g" $(1); done
+
+include/ffi/x86_64/ffi.h:
+	@$(MSG_GENERATE)$@
+	$(VERBOSE)cp src/lib/ffi/include/ffi.h.in $@
+	$(call apply_substitutions,$@,$(subst_x86_64))
+
+include/ffi/arm/ffi.h:
+	@$(MSG_GENERATE)$@
+	$(VERBOSE)cp src/lib/ffi/include/ffi.h.in $@
+	$(call apply_substitutions,$@,$(subst_ARM))

repos/libports/src/lib/ffi/fficonfig.h

@@ -0,0 +1,9 @@
+#ifndef _FFICONFIG_H_
+#define _FFICONFIG_H_
+
+#define FFI_HIDDEN __attribute__ ((visibility ("hidden")))
+#define STDC_HEADERS 1
+
+#define HAVE_MEMCPY 1
+
+#endif /* _FFICONFIG_H_ */