[PATCH 1/6] Share gdb/environ.[ch] with gdbserver

[Sergio Durigan Junior <sergiodj@redhat.com>]

We will need access to the environment functions when we share
fork_inferior between GDB and gdbserver, therefore we simply make the
API on gdb/environ.[ch] available on common/.  No extra adjustments
are needed to make it compile on gdbserver.

gdb/ChangeLog:
2016-12-22  Sergio Durigan Junior  <sergiodj@redhat.com>

	* Makefile.in (SFILES): Replace "environ.c" with
	"common/environ.c".
	(HFILES_NO_SRCDIR): Likewise, for "environ.h".
	* environ.c: Include "common-defs.h" instead of "defs.h.  Moved
	to...
	* common/environ.c: ... here.
	* environ.h: Moved to...
	* common/environ.h: ... here.

gdb/gdbserver/ChangeLog:
2016-12-22  Sergio Durigan Junior  <sergiodj@redhat.com>

	* Makefile.in (SFILES): Add "common/environ.c".
	(OBJS): Add "common/environ.h".
---
 gdb/Makefile.in            | 4 ++--
 gdb/{ => common}/environ.c | 2 +-
 gdb/{ => common}/environ.h | 0
 gdb/gdbserver/Makefile.in  | 5 +++++
 4 files changed, 8 insertions(+), 3 deletions(-)
 rename gdb/{ => common}/environ.c (99%)
 rename gdb/{ => common}/environ.h (100%)

diff --git a/gdb/Makefile.in b/gdb/Makefile.in
index 946d440..051f07d 100644
--- a/gdb/Makefile.in
+++ b/gdb/Makefile.in
@@ -1047,7 +1047,6 @@ SFILES = \
 	dwarf2loc.c \
 	dwarf2read.c \
 	elfread.c \
-	environ.c \
 	eval.c \
 	event-loop.c \
 	event-top.c \
@@ -1192,6 +1191,7 @@ SFILES = \
 	common/common-regcache.c \
 	common/common-utils.c \
 	common/errors.c \
+	common/environ.c \
 	common/fileio.c \
 	common/filestuff.c \
 	common/format.c \
@@ -1270,7 +1270,6 @@ HFILES_NO_SRCDIR = \
 	dwarf2-frame-tailcall.h \
 	dwarf2expr.h \
 	dwarf2loc.h \
-	environ.h \
 	event-loop.h \
 	event-top.h \
 	exceptions.h \
@@ -1471,6 +1470,7 @@ HFILES_NO_SRCDIR = \
 	common/common-types.h \
 	common/common-utils.h \
 	common/errors.h \
+	common/environ.h \
 	common/fileio.h \
 	common/format.h \
 	common/gdb_assert.h \
diff --git a/gdb/environ.c b/gdb/common/environ.c
similarity index 99%
rename from gdb/environ.c
rename to gdb/common/environ.c
index 5c73757..105f854 100644
--- a/gdb/environ.c
+++ b/gdb/common/environ.c
@@ -15,7 +15,7 @@
    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 "environ.h"
 #include <algorithm>
 \f
diff --git a/gdb/environ.h b/gdb/common/environ.h
similarity index 100%
rename from gdb/environ.h
rename to gdb/common/environ.h
diff --git a/gdb/gdbserver/Makefile.in b/gdb/gdbserver/Makefile.in
index e17cf70..fe40842 100644
--- a/gdb/gdbserver/Makefile.in
+++ b/gdb/gdbserver/Makefile.in
@@ -201,6 +201,7 @@ SFILES = \
 	$(srcdir)/common/common-regcache.c \
 	$(srcdir)/common/common-utils.c \
 	$(srcdir)/common/errors.c \
+	$(srcdir)/common/environ.c \
 	$(srcdir)/common/fileio.c \
 	$(srcdir)/common/filestuff.c \
 	$(srcdir)/common/gdb_vecs.c \
@@ -238,6 +239,7 @@ OBS = \
 	debug.o \
 	dll.o \
 	errors.o \
+	environ.o \
 	event-loop.o \
 	fileio.o \
 	filestuff.o \
@@ -774,6 +776,9 @@ agent.o: ../common/agent.c
 errors.o: ../common/errors.c
 	$(COMPILE) $<
 	$(POSTCOMPILE)
+environ.o: ../common/environ.c
+	$(COMPILE) $<
+	$(POSTCOMPILE)
 common-debug.o: ../common/common-debug.c
 	$(COMPILE) $<
 	$(POSTCOMPILE)
-- 
2.7.4