re PR go/63731 (Fallback to netgo does not work)

	PR go/63731
libgo: Build and install libnetgo.a

libnetgo.a provides the net
package built with the netgo
tag enabled.  This provides the
netgo fallback solution for gccgo.
This lib must be explicitly linked
in using the -gccgoflags, so is
not included by default.

From-SVN: r221906

diff --git a/libgo/Makefile.am b/libgo/Makefile.am
index e90d68982597ac9ecbc65acf6d43b5363e6d7908..00fbaabae398c0be1aeba492f31f1194b8959a11 100644 (file)
--- a/libgo/Makefile.am
+++ b/libgo/Makefile.am
@@ -105,7 +105,7 @@ toolexeclib_LTLIBRARIES = libgo-llgo.la
 toolexeclib_LIBRARIES = libgobegin-llgo.a
 else
 toolexeclib_LTLIBRARIES = libgo.la
-toolexeclib_LIBRARIES = libgobegin.a
+toolexeclib_LIBRARIES = libgobegin.a libnetgo.a
 endif
 
 toolexeclibgo_DATA = \
@@ -774,9 +774,7 @@ endif
 endif
 endif
 
-go_net_files = \
-       go/net/cgo_unix.go \
-       $(go_net_cgo_file) \
+go_net_common_files = \
        $(go_net_cloexec_file) \
        go/net/dial.go \
        go/net/dnsclient.go \
@@ -820,6 +818,15 @@ go_net_files = \
        go/net/unixsock.go \
        go/net/unixsock_posix.go
 
+go_net_files = \
+       go/net/cgo_unix.go \
+       $(go_net_cgo_file) \
+       $(go_net_common_files)
+
+go_netgo_files = \
+       go/net/cgo_stub.go \
+       $(go_net_common_files)
+
 if LIBGO_IS_SOLARIS
 if LIBGO_IS_386
 go_os_dir_file = go/os/dir_largefile.go
@@ -2025,6 +2032,9 @@ libgobegin_a_SOURCES = \
 libgobegin_llgo_a_SOURCES = \
        runtime/go-main.c
 
+libnetgo_a_SOURCES = $(go_netgo_files)
+libnetgo_a_LIBADD = netgo.o
+
 LTLDFLAGS = $(shell $(SHELL) $(top_srcdir)/../libtool-ldflags $(LDFLAGS))
 
 GOCFLAGS = $(CFLAGS)
@@ -2049,6 +2059,12 @@ BUILDPACKAGE = \
        files=`echo $^ | sed -e 's/[^ ]*\.gox//g'`; \
        $(LTGOCOMPILE) -I . -c -fgo-pkgpath=`echo $@ | sed -e 's/.lo$$//' -e 's/-go$$//'` -o $@ $$files
 
+# Build netgo.o.
+BUILDNETGO = \
+       $(MKDIR_P) $(@D); \
+       files=`echo $^ | sed -e 's/[^ ]*\.gox//g'`; \
+       $(GOCOMPILE) -I . -c -fgo-pkgpath=net -o $@ $$files
+
 GOTESTFLAGS =
 GOBENCH = 
 
@@ -2270,6 +2286,12 @@ net/check: $(CHECK_DEPS)
        @$(CHECK)
 .PHONY: net/check
 
+@go_include@ netgo.o.dep
+netgo.o.dep: $(go_netgo_files)
+       $(BUILDDEPS)
+netgo.o: $(go_netgo_files)
+       $(BUILDNETGO)
+
 @go_include@ os.lo.dep
 os.lo.dep: $(go_os_files)
        $(BUILDDEPS)

diff --git a/libgo/Makefile.in b/libgo/Makefile.in
index b2050084feb5bfde1a50a177e44f55b92ada4c53..8ecc339012b5cc29560b354713d18e4ab4ed89c4 100644 (file)
--- a/libgo/Makefile.in
+++ b/libgo/Makefile.in
@@ -136,6 +136,15 @@ libgobegin_a_AR = $(AR) $(ARFLAGS)
 libgobegin_a_LIBADD =
 am_libgobegin_a_OBJECTS = go-main.$(OBJEXT)
 libgobegin_a_OBJECTS = $(am_libgobegin_a_OBJECTS)
+libnetgo_a_AR = $(AR) $(ARFLAGS)
+libnetgo_a_DEPENDENCIES = netgo.o
+am__objects_1 =
+am__objects_2 = $(am__objects_1) $(am__objects_1) $(am__objects_1) \
+       $(am__objects_1) $(am__objects_1) $(am__objects_1) \
+       $(am__objects_1)
+am__objects_3 = $(am__objects_2)
+am_libnetgo_a_OBJECTS = $(am__objects_3)
+libnetgo_a_OBJECTS = $(am_libnetgo_a_OBJECTS)
 LTLIBRARIES = $(toolexeclib_LTLIBRARIES)
 am__DEPENDENCIES_1 =
 am__DEPENDENCIES_2 = bufio.lo bytes.lo bytes/index.lo crypto.lo \
@@ -183,23 +192,23 @@ am__DEPENDENCIES_3 = $(am__DEPENDENCIES_2) \
        $(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1) \
        $(am__DEPENDENCIES_1) $(am__DEPENDENCIES_1)
 libgo_llgo_la_DEPENDENCIES = $(am__DEPENDENCIES_3)
-@LIBGO_IS_LINUX_FALSE@am__objects_1 = lock_sema.lo thread-sema.lo
-@LIBGO_IS_LINUX_TRUE@am__objects_1 = lock_futex.lo thread-linux.lo
-@HAVE_SYS_MMAN_H_FALSE@am__objects_2 = mem_posix_memalign.lo
-@HAVE_SYS_MMAN_H_TRUE@am__objects_2 = mem.lo
-@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_SOLARIS_FALSE@am__objects_3 = netpoll_kqueue.lo
-@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_SOLARIS_TRUE@am__objects_3 = netpoll_select.lo
-@LIBGO_IS_LINUX_TRUE@am__objects_3 = netpoll_epoll.lo
-@LIBGO_IS_RTEMS_TRUE@am__objects_4 = rtems-task-variable-add.lo
-@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_FREEBSD_FALSE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_NETBSD_FALSE@@LIBGO_IS_SOLARIS_FALSE@am__objects_5 = getncpu-none.lo
-@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_FREEBSD_FALSE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_NETBSD_TRUE@@LIBGO_IS_SOLARIS_FALSE@am__objects_5 = getncpu-bsd.lo
-@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_FREEBSD_TRUE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_SOLARIS_FALSE@am__objects_5 = getncpu-bsd.lo
-@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_SOLARIS_TRUE@am__objects_5 = getncpu-solaris.lo
-@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_IRIX_TRUE@@LIBGO_IS_LINUX_FALSE@am__objects_5 = getncpu-irix.lo
-@LIBGO_IS_DARWIN_TRUE@@LIBGO_IS_LINUX_FALSE@am__objects_5 =  \
+@LIBGO_IS_LINUX_FALSE@am__objects_4 = lock_sema.lo thread-sema.lo
+@LIBGO_IS_LINUX_TRUE@am__objects_4 = lock_futex.lo thread-linux.lo
+@HAVE_SYS_MMAN_H_FALSE@am__objects_5 = mem_posix_memalign.lo
+@HAVE_SYS_MMAN_H_TRUE@am__objects_5 = mem.lo
+@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_SOLARIS_FALSE@am__objects_6 = netpoll_kqueue.lo
+@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_SOLARIS_TRUE@am__objects_6 = netpoll_select.lo
+@LIBGO_IS_LINUX_TRUE@am__objects_6 = netpoll_epoll.lo
+@LIBGO_IS_RTEMS_TRUE@am__objects_7 = rtems-task-variable-add.lo
+@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_FREEBSD_FALSE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_NETBSD_FALSE@@LIBGO_IS_SOLARIS_FALSE@am__objects_8 = getncpu-none.lo
+@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_FREEBSD_FALSE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_NETBSD_TRUE@@LIBGO_IS_SOLARIS_FALSE@am__objects_8 = getncpu-bsd.lo
+@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_FREEBSD_TRUE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_SOLARIS_FALSE@am__objects_8 = getncpu-bsd.lo
+@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_IRIX_FALSE@@LIBGO_IS_LINUX_FALSE@@LIBGO_IS_SOLARIS_TRUE@am__objects_8 = getncpu-solaris.lo
+@LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_IRIX_TRUE@@LIBGO_IS_LINUX_FALSE@am__objects_8 = getncpu-irix.lo
+@LIBGO_IS_DARWIN_TRUE@@LIBGO_IS_LINUX_FALSE@am__objects_8 =  \
 @LIBGO_IS_DARWIN_TRUE@@LIBGO_IS_LINUX_FALSE@   getncpu-bsd.lo
-@LIBGO_IS_LINUX_TRUE@am__objects_5 = getncpu-linux.lo
-am__objects_6 = go-append.lo go-assert.lo go-assert-interface.lo \
+@LIBGO_IS_LINUX_TRUE@am__objects_8 = getncpu-linux.lo
+am__objects_9 = go-append.lo go-assert.lo go-assert-interface.lo \
        go-byte-array-to-string.lo go-breakpoint.lo go-caller.lo \
        go-callers.lo go-can-convert-interface.lo go-cdiv.lo go-cgo.lo \
        go-check-interface.lo go-construct-map.lo \
@@ -221,21 +230,21 @@ am__objects_6 = go-append.lo go-assert.lo go-assert-interface.lo \
        go-type-string.lo go-typedesc-equal.lo go-unsafe-new.lo \
        go-unsafe-newarray.lo go-unsafe-pointer.lo go-unsetenv.lo \
        go-unwind.lo go-varargs.lo env_posix.lo heapdump.lo \
-       $(am__objects_1) mcache.lo mcentral.lo $(am__objects_2) \
-       mfixalloc.lo mgc0.lo mheap.lo msize.lo $(am__objects_3) \
+       $(am__objects_4) mcache.lo mcentral.lo $(am__objects_5) \
+       mfixalloc.lo mgc0.lo mheap.lo msize.lo $(am__objects_6) \
        panic.lo parfor.lo print.lo proc.lo runtime.lo signal_unix.lo \
-       thread.lo yield.lo $(am__objects_4) chan.lo cpuprof.lo \
+       thread.lo yield.lo $(am__objects_7) chan.lo cpuprof.lo \
        go-iface.lo lfstack.lo malloc.lo map.lo mprof.lo netpoll.lo \
        rdebug.lo reflect.lo runtime1.lo sema.lo sigqueue.lo string.lo \
-       time.lo $(am__objects_5)
-am_libgo_llgo_la_OBJECTS = $(am__objects_6)
+       time.lo $(am__objects_8)
+am_libgo_llgo_la_OBJECTS = $(am__objects_9)
 libgo_llgo_la_OBJECTS = $(am_libgo_llgo_la_OBJECTS)
 libgo_llgo_la_LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) \
        $(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
        $(libgo_llgo_la_LDFLAGS) $(LDFLAGS) -o $@
 @GOC_IS_LLGO_TRUE@am_libgo_llgo_la_rpath = -rpath $(toolexeclibdir)
 libgo_la_DEPENDENCIES = $(am__DEPENDENCIES_3)
-am_libgo_la_OBJECTS = $(am__objects_6)
+am_libgo_la_OBJECTS = $(am__objects_9)
 libgo_la_OBJECTS = $(am_libgo_la_OBJECTS)
 libgo_la_LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
        --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(libgo_la_LDFLAGS) \
@@ -255,7 +264,8 @@ LINK = $(LIBTOOL) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) \
        --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) \
        $(LDFLAGS) -o $@
 SOURCES = $(libgobegin_llgo_a_SOURCES) $(libgobegin_a_SOURCES) \
-       $(libgo_llgo_la_SOURCES) $(libgo_la_SOURCES)
+       $(libnetgo_a_SOURCES) $(libgo_llgo_la_SOURCES) \
+       $(libgo_la_SOURCES)
 MULTISRCTOP = 
 MULTIBUILDTOP = 
 MULTIDIRS = 
@@ -522,7 +532,7 @@ AM_MAKEFLAGS = \
 FLAGS_TO_PASS = $(AM_MAKEFLAGS)
 @GOC_IS_LLGO_FALSE@toolexeclib_LTLIBRARIES = libgo.la
 @GOC_IS_LLGO_TRUE@toolexeclib_LTLIBRARIES = libgo-llgo.la
-@GOC_IS_LLGO_FALSE@toolexeclib_LIBRARIES = libgobegin.a
+@GOC_IS_LLGO_FALSE@toolexeclib_LIBRARIES = libgobegin.a libnetgo.a
 @GOC_IS_LLGO_TRUE@toolexeclib_LIBRARIES = libgobegin-llgo.a
 toolexeclibgo_DATA = \
        bufio.gox \
@@ -1025,9 +1035,7 @@ go_mime_files = \
 @LIBGO_IS_DARWIN_FALSE@@LIBGO_IS_OPENBSD_FALSE@@LIBGO_IS_SOLARIS_TRUE@go_net_tcpsockopt_file = go/net/tcpsockopt_solaris.go
 @LIBGO_IS_DARWIN_TRUE@@LIBGO_IS_OPENBSD_FALSE@go_net_tcpsockopt_file = go/net/tcpsockopt_darwin.go
 @LIBGO_IS_OPENBSD_TRUE@go_net_tcpsockopt_file = go/net/tcpsockopt_openbsd.go
-go_net_files = \
-       go/net/cgo_unix.go \
-       $(go_net_cgo_file) \
+go_net_common_files = \
        $(go_net_cloexec_file) \
        go/net/dial.go \
        go/net/dnsclient.go \
@@ -1071,6 +1079,15 @@ go_net_files = \
        go/net/unixsock.go \
        go/net/unixsock_posix.go
 
+go_net_files = \
+       go/net/cgo_unix.go \
+       $(go_net_cgo_file) \
+       $(go_net_common_files)
+
+go_netgo_files = \
+       go/net/cgo_stub.go \
+       $(go_net_common_files)
+
 @LIBGO_IS_386_FALSE@@LIBGO_IS_SOLARIS_TRUE@@LIBGO_IS_SPARC_FALSE@go_os_dir_file = go/os/dir_regfile.go
 @LIBGO_IS_386_FALSE@@LIBGO_IS_SOLARIS_TRUE@@LIBGO_IS_SPARC_TRUE@go_os_dir_file = go/os/dir_largefile.go
 @LIBGO_IS_386_TRUE@@LIBGO_IS_SOLARIS_TRUE@go_os_dir_file = go/os/dir_largefile.go
@@ -2081,6 +2098,8 @@ libgobegin_a_SOURCES = \
 libgobegin_llgo_a_SOURCES = \
        runtime/go-main.c
 
+libnetgo_a_SOURCES = $(go_netgo_files)
+libnetgo_a_LIBADD = netgo.o
 LTLDFLAGS = $(shell $(SHELL) $(top_srcdir)/../libtool-ldflags $(LDFLAGS))
 AM_GOCFLAGS = $(STRINGOPS_FLAG)
 GOCOMPILE = $(GOC) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_GOCFLAGS) $(GOCFLAGS)
@@ -2104,6 +2123,13 @@ BUILDPACKAGE = \
        files=`echo $^ | sed -e 's/[^ ]*\.gox//g'`; \
        $(LTGOCOMPILE) -I . -c -fgo-pkgpath=`echo $@ | sed -e 's/.lo$$//' -e 's/-go$$//'` -o $@ $$files
 
+
+# Build netgo.o.
+BUILDNETGO = \
+       $(MKDIR_P) $(@D); \
+       files=`echo $^ | sed -e 's/[^ ]*\.gox//g'`; \
+       $(GOCOMPILE) -I . -c -fgo-pkgpath=net -o $@ $$files
+
 GOTESTFLAGS = 
 GOBENCH = 
 
@@ -2391,6 +2417,10 @@ libgobegin.a: $(libgobegin_a_OBJECTS) $(libgobegin_a_DEPENDENCIES)
        -rm -f libgobegin.a
        $(libgobegin_a_AR) libgobegin.a $(libgobegin_a_OBJECTS) $(libgobegin_a_LIBADD)
        $(RANLIB) libgobegin.a
+libnetgo.a: $(libnetgo_a_OBJECTS) $(libnetgo_a_DEPENDENCIES) 
+       -rm -f libnetgo.a
+       $(libnetgo_a_AR) libnetgo.a $(libnetgo_a_OBJECTS) $(libnetgo_a_LIBADD)
+       $(RANLIB) libnetgo.a
 install-toolexeclibLTLIBRARIES: $(toolexeclib_LTLIBRARIES)
        @$(NORMAL_INSTALL)
        test -z "$(toolexeclibdir)" || $(MKDIR_P) "$(DESTDIR)$(toolexeclibdir)"
@@ -4615,6 +4645,12 @@ net/check: $(CHECK_DEPS)
        @$(CHECK)
 .PHONY: net/check
 
+@go_include@ netgo.o.dep
+netgo.o.dep: $(go_netgo_files)
+       $(BUILDDEPS)
+netgo.o: $(go_netgo_files)
+       $(BUILDNETGO)
+
 @go_include@ os.lo.dep
 os.lo.dep: $(go_os_files)
        $(BUILDDEPS)