Move gdb-dlfcn.[ch] to gdbsupport/

I need to use 'gdb_dlopen' inside 'gdbsupport/', but it's not yet
supported there.  This commit moves 'gdb-dlfcn.[ch]' to 'gdbsupport/',
which makes it available also on gdbserver.

gdb/ChangeLog:
2019-08-23  Sergio Durigan Junior  <sergiodj@redhat.com>

	* configure.ac: Don't check for 'dlfcn.h' (moved to
	gdbsupport/common.m4).
	* Makefile.in (COMMON_SFILES): Move 'gdb-dlfcn.c' to
	'gdbsupport/'.
	(HFILES_NO_SRCDIR): Likewise, for 'gdb-dlfcn.h'.
	* compile/compile-c-support.c: Include
	'gdbsupport/gdb-dlfcn.h'.
	* gdbsupport/common.m4: Check for 'dlfcn.h'.
	* gdb-dlfcn.c: Move to...
	* gdbsupport/gdb-dlfcn.c: ... here.
	* gdb-dlfcn.h: Move to...
	* gdbsupport/gdb-dlfcn.h: ... here.

gdb/gdbserver/ChangeLog:
2019-08-23  Sergio Durigan Junior  <sergiodj@redhat.com>

	* Makefile.in (SFILES): Add 'gdbsupport/gdb-dlfcn.c'.
	(OBS): Add 'gdbsupport/gdb-dlfcn.o'.
	* config.in: Regenerate.
	* configure: Regenerate.

13 files changed, 38 insertions, 12 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index df8488b..1d85249 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,18 @@
+2019-08-23  Sergio Durigan Junior  <sergiodj@redhat.com>
+
+	* configure.ac: Don't check for 'dlfcn.h' (moved to
+	gdbsupport/common.m4).
+	* Makefile.in (COMMON_SFILES): Move 'gdb-dlfcn.c' to
+	'gdbsupport/'.
+	(HFILES_NO_SRCDIR): Likewise, for 'gdb-dlfcn.h'.
+	* compile/compile-c-support.c: Include
+	'gdbsupport/gdb-dlfcn.h'.
+	* gdbsupport/common.m4: Check for 'dlfcn.h'.
+	* gdb-dlfcn.c: Move to...
+	* gdbsupport/gdb-dlfcn.c: ... here.
+	* gdb-dlfcn.h: Move to...
+	* gdbsupport/gdb-dlfcn.h: ... here.
+
 2019-08-23  Sandra Loosemore  <sandra@codesourcery.com>
 
 	* nios2-tdep.c (struct reg_value): Improve comments.  Make
diff --git a/gdb/Makefile.in b/gdb/Makefile.in
index d5d095a..e7e26a4 100644
--- a/gdb/Makefile.in
+++ b/gdb/Makefile.in
@@ -964,6 +964,7 @@ COMMON_SFILES = \
 	gdbsupport/filestuff.c \
 	gdbsupport/format.c \
 	gdbsupport/job-control.c \
+	gdbsupport/gdb-dlfcn.c \
 	gdbsupport/gdb_tilde_expand.c \
 	gdbsupport/gdb_vecs.c \
 	gdbsupport/netstuff.c \
@@ -1028,7 +1029,6 @@ COMMON_SFILES = \
 	frame-unwind.c \
 	gcore.c \
 	gdb_bfd.c \
-	gdb-dlfcn.c \
 	gdb_obstack.c \
 	gdb_regex.c \
 	gdb_usleep.c \
@@ -1262,7 +1262,6 @@ HFILES_NO_SRCDIR = \
 	gcore.h \
 	gdb_bfd.h \
 	gdb_curses.h \
-	gdb-dlfcn.h \
 	gdb_expat.h \
 	gdb_obstack.h \
 	gdb_proc_service.h \
@@ -1460,6 +1459,7 @@ HFILES_NO_SRCDIR = \
 	gdbsupport/environ.h \
 	gdbsupport/fileio.h \
 	gdbsupport/format.h \
+	gdbsupport/gdb-dlfcn.h \
 	gdbsupport/gdb_assert.h \
 	gdbsupport/gdb_tilde_expand.h \
 	gdbsupport/gdb_locale.h \
diff --git a/gdb/compile/compile-c-support.c b/gdb/compile/compile-c-support.c
index a6727e8..9de827a 100644
--- a/gdb/compile/compile-c-support.c
+++ b/gdb/compile/compile-c-support.c
@@ -22,12 +22,12 @@
 #include "compile-c.h"
 #include "compile-cplus.h"
 #include "compile.h"
-#include "gdb-dlfcn.h"
 #include "c-lang.h"
 #include "macrotab.h"
 #include "macroscope.h"
 #include "regcache.h"
 #include "gdbsupport/function-view.h"
+#include "gdbsupport/gdb-dlfcn.h"
 #include "gdbsupport/preprocessor.h"
 #include "gdbarch.h"
 
diff --git a/gdb/configure b/gdb/configure
index cb71bbf..22a5f60 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -12024,8 +12024,7 @@ for ac_header in nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
 		  sys/file.h sys/filio.h sys/ioctl.h sys/param.h \
 		  sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \
 		  sys/reg.h sys/debugreg.h sys/select.h \
-		  termios.h elf_hp.h \
-		  dlfcn.h
+		  termios.h elf_hp.h
 do :
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
 ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
@@ -13516,7 +13515,7 @@ $as_echo "#define HAVE_LANGINFO_CODESET 1" >>confdefs.h
   fi
 
 
-  for ac_header in linux/perf_event.h locale.h memory.h signal.h 		   sys/resource.h sys/socket.h 		   sys/un.h sys/wait.h 		   thread_db.h wait.h 		   termios.h
+  for ac_header in linux/perf_event.h locale.h memory.h signal.h 		   sys/resource.h sys/socket.h 		   sys/un.h sys/wait.h 		   thread_db.h wait.h 		   termios.h 		   dlfcn.h
 do :
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
 ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
diff --git a/gdb/configure.ac b/gdb/configure.ac
index 5a18c16..9da8818 100644
--- a/gdb/configure.ac
+++ b/gdb/configure.ac
@@ -1308,8 +1308,7 @@ AC_CHECK_HEADERS([nlist.h machine/reg.h poll.h sys/poll.h proc_service.h \
 		  sys/file.h sys/filio.h sys/ioctl.h sys/param.h \
 		  sys/resource.h sys/procfs.h sys/ptrace.h ptrace.h \
 		  sys/reg.h sys/debugreg.h sys/select.h \
-		  termios.h elf_hp.h \
-		  dlfcn.h])
+		  termios.h elf_hp.h])
 AC_CHECK_HEADERS(sys/user.h, [], [],
 [#if HAVE_SYS_PARAM_H
 # include <sys/param.h>
diff --git a/gdb/gdbserver/ChangeLog b/gdb/gdbserver/ChangeLog
index adac3e8..faafdfd 100644
--- a/gdb/gdbserver/ChangeLog
+++ b/gdb/gdbserver/ChangeLog
@@ -1,3 +1,10 @@
+2019-08-23  Sergio Durigan Junior  <sergiodj@redhat.com>
+
+	* Makefile.in (SFILES): Add 'gdbsupport/gdb-dlfcn.c'.
+	(OBS): Add 'gdbsupport/gdb-dlfcn.o'.
+	* config.in: Regenerate.
+	* configure: Regenerate.
+
 2019-08-15  Tom Tromey  <tromey@adacore.com>
 
 	* target.c (target_write_memory): Use gdb::byte_vector.
diff --git a/gdb/gdbserver/Makefile.in b/gdb/gdbserver/Makefile.in
index ba0356b..ca0a4cb 100644
--- a/gdb/gdbserver/Makefile.in
+++ b/gdb/gdbserver/Makefile.in
@@ -210,6 +210,7 @@ SFILES = \
 	$(srcdir)/gdbsupport/fileio.c \
 	$(srcdir)/gdbsupport/filestuff.c \
 	$(srcdir)/gdbsupport/job-control.c \
+	$(srcdir)/gdbsupport/gdb-dlfcn.c \
 	$(srcdir)/gdbsupport/gdb_tilde_expand.c \
 	$(srcdir)/gdbsupport/gdb_vecs.c \
 	$(srcdir)/gdbsupport/netstuff.c \
@@ -255,6 +256,7 @@ OBS = \
 	gdbsupport/fileio.o \
 	gdbsupport/filestuff.o \
 	gdbsupport/format.o \
+	gdbsupport/gdb-dlfcn.o \
 	gdbsupport/gdb_tilde_expand.o \
 	gdbsupport/gdb_vecs.o \
 	gdbsupport/netstuff.o \
diff --git a/gdb/gdbserver/config.in b/gdb/gdbserver/config.in
index 3991964..f05e9be 100644
--- a/gdb/gdbserver/config.in
+++ b/gdb/gdbserver/config.in
@@ -90,6 +90,9 @@
 /* Define to 1 if you have the `dladdr' function. */
 #undef HAVE_DLADDR
 
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#undef HAVE_DLFCN_H
+
 /* Define to 1 if the system has the type `Elf32_auxv_t'. */
 #undef HAVE_ELF32_AUXV_T
 
diff --git a/gdb/gdbserver/configure b/gdb/gdbserver/configure
index 7e5be51..692cb0f 100755
--- a/gdb/gdbserver/configure
+++ b/gdb/gdbserver/configure
@@ -6807,7 +6807,7 @@ $as_echo "#define HAVE_LANGINFO_CODESET 1" >>confdefs.h
   fi
 
 
-  for ac_header in linux/perf_event.h locale.h memory.h signal.h 		   sys/resource.h sys/socket.h 		   sys/un.h sys/wait.h 		   thread_db.h wait.h 		   termios.h
+  for ac_header in linux/perf_event.h locale.h memory.h signal.h 		   sys/resource.h sys/socket.h 		   sys/un.h sys/wait.h 		   thread_db.h wait.h 		   termios.h 		   dlfcn.h
 do :
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
 ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
diff --git a/gdb/gdbsupport/common.m4 b/gdb/gdbsupport/common.m4
index 5701dd9..9038894 100644
--- a/gdb/gdbsupport/common.m4
+++ b/gdb/gdbsupport/common.m4
@@ -29,7 +29,8 @@ AC_DEFUN([GDB_AC_COMMON], [
 		   sys/resource.h sys/socket.h dnl
 		   sys/un.h sys/wait.h dnl
 		   thread_db.h wait.h dnl
-		   termios.h)
+		   termios.h dnl
+		   dlfcn.h)
 
   AC_CHECK_FUNCS([fdwalk getrlimit pipe pipe2 socketpair sigaction])
 
diff --git a/gdb/gdb-dlfcn.c b/gdb/gdbsupport/gdb-dlfcn.c
index 4d060d4..921f10f 100644
--- a/gdb/gdb-dlfcn.c
+++ b/gdb/gdbsupport/gdb-dlfcn.c
@@ -17,7 +17,7 @@
    You should have received a copy of the GNU General Public License
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
-#include "defs.h"
+#include "common-defs.h"
 #include "gdb-dlfcn.h"
 
 #ifdef HAVE_DLFCN_H
diff --git a/gdb/gdb-dlfcn.h b/gdb/gdbsupport/gdb-dlfcn.h
index 6a39d38..6a39d38 100644
--- a/gdb/gdb-dlfcn.h
+++ b/gdb/gdbsupport/gdb-dlfcn.h
diff --git a/gdb/jit.c b/gdb/jit.c
index 87f8d8f..5fef037 100644
--- a/gdb/jit.c
+++ b/gdb/jit.c
@@ -36,7 +36,7 @@
 #include "symfile.h"
 #include "symtab.h"
 #include "target.h"
-#include "gdb-dlfcn.h"
+#include "gdbsupport/gdb-dlfcn.h"
 #include <sys/stat.h>
 #include "gdb_bfd.h"
 #include "readline/tilde.h"