Clean up includes of doublest.h and floatformat.h

As a first small step to getting rid of doublest.h, this patch removes the
include of "floatformat.h" in "doublest.h".  This is actually not needed
for the file itself.  A few source files now need to include "floatformat.h"
directly, since they got it indirectly via "doublest.h" and still need it.

In reviewing which files need it, I found a number of files that include
"floatformat.h" directly without actually needing it at all.  Similarly,
a number of files include "doublest.h" without needing it.  I've also
removed those unnecessary include statements.

gdb/ChangeLog:
2017-10-05  Ulrich Weigand  <uweigand@de.ibm.com>

	* doublest.h: Do not include "floatformat.h".  Remove stale comments.
	* gdbtypes.c: Include "floatformat.h".
	* value.c: Likewise.
	* m68k-tdep.c: Likewise.

	* findvar.c: Do not include "floatformat.h".
	* amd64-darwin-tdep.c: Likewise.
	* arm-linux-tdep.c: Likewise.
	* i386-darwin-tdep.c: Likewise.
	* i387-tdep.c: Likewise.
	* m68k-linux-tdep.c: Likewise.
	* mep-tdep.c: Likewise.
	* mips-tdep.c: Likewise.
	* nios2-tdep.c: Likewise.
	* s390-linux-tdep.c: Likewise.
	* sparc-obsd-tdep.c: Likewise.
	* sparc-tdep.c: Likewise.
	* sparc64-tdep.c: Likewise.
	* spu-tdep.c: Likewise.
	* tic6x-tdep.c: Likewise.
	* tilegx-tdep.c: Likewise.
	* vax-tdep.c: Likewise.
	* xstormy16-tdep.c: Likewise.
	* xtensa-tdep.c: Likewise.

	* top.c: Do not include "doublest.h".
	* aarch64-tdep.c: Likewise.
	* alpha-tdep.c: Likewise.
	* arm-linux-tdep.c: Likewise.
	* m68k-linux-tdep.c: Likewise.
	* tilegx-tdep.c: Likewise.
	* xstormy16-tdep.c: Likewise.

27 files changed, 38 insertions, 38 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 024664f041..5439ffb284 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,38 @@
+2017-10-05  Ulrich Weigand  <uweigand@de.ibm.com>
+
+	* doublest.h: Do not include "floatformat.h".  Remove stale comments.
+	* gdbtypes.c: Include "floatformat.h".
+	* value.c: Likewise.
+	* m68k-tdep.c: Likewise.
+
+	* findvar.c: Do not include "floatformat.h".
+	* amd64-darwin-tdep.c: Likewise.
+	* arm-linux-tdep.c: Likewise.
+	* i386-darwin-tdep.c: Likewise.
+	* i387-tdep.c: Likewise.
+	* m68k-linux-tdep.c: Likewise.
+	* mep-tdep.c: Likewise.
+	* mips-tdep.c: Likewise.
+	* nios2-tdep.c: Likewise.
+	* s390-linux-tdep.c: Likewise.
+	* sparc-obsd-tdep.c: Likewise.
+	* sparc-tdep.c: Likewise.
+	* sparc64-tdep.c: Likewise.
+	* spu-tdep.c: Likewise.
+	* tic6x-tdep.c: Likewise.
+	* tilegx-tdep.c: Likewise.
+	* vax-tdep.c: Likewise.
+	* xstormy16-tdep.c: Likewise.
+	* xtensa-tdep.c: Likewise.
+
+	* top.c: Do not include "doublest.h".
+	* aarch64-tdep.c: Likewise.
+	* alpha-tdep.c: Likewise.
+	* arm-linux-tdep.c: Likewise.
+	* m68k-linux-tdep.c: Likewise.
+	* tilegx-tdep.c: Likewise.
+	* xstormy16-tdep.c: Likewise.
+
 2017-10-05  John Baldwin  <jhb@FreeBSD.org>
 
 	* mips-fbsd-tdep.c (MIPS_INST_ADDIU_A0_SP_N32): Define.
diff --git a/gdb/aarch64-tdep.c b/gdb/aarch64-tdep.c
index da5731e783..e74b7cd370 100644
--- a/gdb/aarch64-tdep.c
+++ b/gdb/aarch64-tdep.c
@@ -27,7 +27,6 @@
 #include "dis-asm.h"
 #include "regcache.h"
 #include "reggroups.h"
-#include "doublest.h"
 #include "value.h"
 #include "arch-utils.h"
 #include "osabi.h"
diff --git a/gdb/alpha-tdep.c b/gdb/alpha-tdep.c
index e66517d21c..89556956ab 100644
--- a/gdb/alpha-tdep.c
+++ b/gdb/alpha-tdep.c
@@ -18,7 +18,6 @@
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include "defs.h"
-#include "doublest.h"
 #include "frame.h"
 #include "frame-unwind.h"
 #include "frame-base.h"
diff --git a/gdb/amd64-darwin-tdep.c b/gdb/amd64-darwin-tdep.c
index 7f6cb94ad6..384d20944b 100644
--- a/gdb/amd64-darwin-tdep.c
+++ b/gdb/amd64-darwin-tdep.c
@@ -23,7 +23,6 @@
 #include "inferior.h"
 #include "gdbcore.h"
 #include "target.h"
-#include "floatformat.h"
 #include "symtab.h"
 #include "regcache.h"
 #include "objfiles.h"
diff --git a/gdb/arm-linux-tdep.c b/gdb/arm-linux-tdep.c
index 72b91d4f2e..056c1b9421 100644
--- a/gdb/arm-linux-tdep.c
+++ b/gdb/arm-linux-tdep.c
@@ -21,11 +21,9 @@
 #include "target.h"
 #include "value.h"
 #include "gdbtypes.h"
-#include "floatformat.h"
 #include "gdbcore.h"
 #include "frame.h"
 #include "regcache.h"
-#include "doublest.h"
 #include "solib-svr4.h"
 #include "osabi.h"
 #include "regset.h"
diff --git a/gdb/doublest.h b/gdb/doublest.h
index a22baef89e..74d0572912 100644
--- a/gdb/doublest.h
+++ b/gdb/doublest.h
@@ -23,18 +23,6 @@
 struct type;
 struct floatformat;
 
-/* Setup definitions for host and target floating point formats.  We need to
-   consider the format for `float', `double', and `long double' for both target
-   and host.  We need to do this so that we know what kind of conversions need
-   to be done when converting target numbers to and from the hosts DOUBLEST
-   data type.  */
-
-/* This is used to indicate that we don't know the format of the floating point
-   number.  Typically, this is useful for native ports, where the actual format
-   is irrelevant, since no conversions will be taking place.  */
-
-#include "floatformat.h"	/* For struct floatformat */
-
 /* Use `long double' if the host compiler supports it.  (Note that this is not
    necessarily any longer than `double'.  On SunOS/gcc, it's the same as
    double.)  This is necessary because GDB internally converts all floating
diff --git a/gdb/findvar.c b/gdb/findvar.c
index b3fb337f77..2bc2095bf7 100644
--- a/gdb/findvar.c
+++ b/gdb/findvar.c
@@ -25,7 +25,6 @@
 #include "gdbcore.h"
 #include "inferior.h"
 #include "target.h"
-#include "floatformat.h"
 #include "symfile.h"		/* for overlay functions */
 #include "regcache.h"
 #include "user-regs.h"
diff --git a/gdb/gdbtypes.c b/gdb/gdbtypes.c
index 57bc218d91..73d445361d 100644
--- a/gdb/gdbtypes.c
+++ b/gdb/gdbtypes.c
@@ -38,6 +38,7 @@
 #include "bcache.h"
 #include "dwarf2loc.h"
 #include "gdbcore.h"
+#include "floatformat.h"
 
 /* Initialize BADNESS constants.  */
 
diff --git a/gdb/i386-darwin-tdep.c b/gdb/i386-darwin-tdep.c
index a888e10c89..c642040432 100644
--- a/gdb/i386-darwin-tdep.c
+++ b/gdb/i386-darwin-tdep.c
@@ -23,7 +23,6 @@
 #include "inferior.h"
 #include "gdbcore.h"
 #include "target.h"
-#include "floatformat.h"
 #include "symtab.h"
 #include "regcache.h"
 #include "objfiles.h"
diff --git a/gdb/i387-tdep.c b/gdb/i387-tdep.c
index 574914cab7..3de7c62f4a 100644
--- a/gdb/i387-tdep.c
+++ b/gdb/i387-tdep.c
@@ -19,7 +19,6 @@
 
 #include "defs.h"
 #include "doublest.h"
-#include "floatformat.h"
 #include "frame.h"
 #include "gdbcore.h"
 #include "inferior.h"
diff --git a/gdb/m68k-linux-tdep.c b/gdb/m68k-linux-tdep.c
index fa0848f453..c911f2d4ac 100644
--- a/gdb/m68k-linux-tdep.c
+++ b/gdb/m68k-linux-tdep.c
@@ -19,8 +19,6 @@
 
 #include "defs.h"
 #include "gdbcore.h"
-#include "doublest.h"
-#include "floatformat.h"
 #include "frame.h"
 #include "target.h"
 #include "gdbtypes.h"
diff --git a/gdb/m68k-tdep.c b/gdb/m68k-tdep.c
index ce126a8b81..37df9d5f27 100644
--- a/gdb/m68k-tdep.c
+++ b/gdb/m68k-tdep.c
@@ -32,6 +32,7 @@
 #include "osabi.h"
 #include "dis-asm.h"
 #include "target-descriptions.h"
+#include "floatformat.h"
 
 #include "m68k-tdep.h"
 
diff --git a/gdb/mep-tdep.c b/gdb/mep-tdep.c
index fffd40569c..623ab7f42f 100644
--- a/gdb/mep-tdep.c
+++ b/gdb/mep-tdep.c
@@ -36,7 +36,6 @@
 #include "arch-utils.h"
 #include "regcache.h"
 #include "remote.h"
-#include "floatformat.h"
 #include "sim-regno.h"
 #include "disasm.h"
 #include "trad-frame.h"
diff --git a/gdb/mips-tdep.c b/gdb/mips-tdep.c
index 5fc0618787..05d7ae1e87 100644
--- a/gdb/mips-tdep.c
+++ b/gdb/mips-tdep.c
@@ -49,7 +49,6 @@
 #include "frame-base.h"
 #include "trad-frame.h"
 #include "infcall.h"
-#include "floatformat.h"
 #include "remote.h"
 #include "target-descriptions.h"
 #include "dwarf2-frame.h"
diff --git a/gdb/nios2-tdep.c b/gdb/nios2-tdep.c
index 4ad49aef05..cf60337627 100644
--- a/gdb/nios2-tdep.c
+++ b/gdb/nios2-tdep.c
@@ -37,7 +37,6 @@
 #include "value.h"
 #include "symfile.h"
 #include "arch-utils.h"
-#include "floatformat.h"
 #include "infcall.h"
 #include "regset.h"
 #include "target-descriptions.h"
diff --git a/gdb/s390-linux-tdep.c b/gdb/s390-linux-tdep.c
index a6a6d5d978..dfc7404f4b 100644
--- a/gdb/s390-linux-tdep.c
+++ b/gdb/s390-linux-tdep.c
@@ -30,7 +30,6 @@
 #include "gdbcore.h"
 #include "gdbcmd.h"
 #include "objfiles.h"
-#include "floatformat.h"
 #include "regcache.h"
 #include "trad-frame.h"
 #include "frame-base.h"
diff --git a/gdb/sparc-obsd-tdep.c b/gdb/sparc-obsd-tdep.c
index fbe5aab795..d495f714b2 100644
--- a/gdb/sparc-obsd-tdep.c
+++ b/gdb/sparc-obsd-tdep.c
@@ -18,7 +18,6 @@
    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include "defs.h"
-#include "floatformat.h"
 #include "frame.h"
 #include "frame-unwind.h"
 #include "gdbcore.h"
diff --git a/gdb/sparc-tdep.c b/gdb/sparc-tdep.c
index 8bb69f5e36..353b33cf59 100644
--- a/gdb/sparc-tdep.c
+++ b/gdb/sparc-tdep.c
@@ -22,7 +22,6 @@
 #include "dis-asm.h"
 #include "dwarf2.h"
 #include "dwarf2-frame.h"
-#include "floatformat.h"
 #include "frame.h"
 #include "frame-base.h"
 #include "frame-unwind.h"
diff --git a/gdb/sparc64-tdep.c b/gdb/sparc64-tdep.c
index 8722f0acc8..b4ae165678 100644
--- a/gdb/sparc64-tdep.c
+++ b/gdb/sparc64-tdep.c
@@ -20,7 +20,6 @@
 #include "defs.h"
 #include "arch-utils.h"
 #include "dwarf2-frame.h"
-#include "floatformat.h"
 #include "frame.h"
 #include "frame-base.h"
 #include "frame-unwind.h"
diff --git a/gdb/spu-tdep.c b/gdb/spu-tdep.c
index 39cecfe5a5..a7eb27d638 100644
--- a/gdb/spu-tdep.c
+++ b/gdb/spu-tdep.c
@@ -38,7 +38,6 @@
 #include "language.h"
 #include "regcache.h"
 #include "reggroups.h"
-#include "floatformat.h"
 #include "block.h"
 #include "observer.h"
 #include "infcall.h"
diff --git a/gdb/tic6x-tdep.c b/gdb/tic6x-tdep.c
index 013a084a2f..aff95b69ad 100644
--- a/gdb/tic6x-tdep.c
+++ b/gdb/tic6x-tdep.c
@@ -36,7 +36,6 @@
 #include "value.h"
 #include "symfile.h"
 #include "arch-utils.h"
-#include "floatformat.h"
 #include "glibc-tdep.h"
 #include "infcall.h"
 #include "regset.h"
diff --git a/gdb/tilegx-tdep.c b/gdb/tilegx-tdep.c
index 5291e10f60..3a630c33d8 100644
--- a/gdb/tilegx-tdep.c
+++ b/gdb/tilegx-tdep.c
@@ -31,10 +31,8 @@
 #include "dis-asm.h"
 #include "inferior.h"
 #include "arch-utils.h"
-#include "floatformat.h"
 #include "regcache.h"
 #include "regset.h"
-#include "doublest.h"
 #include "osabi.h"
 #include "linux-tdep.h"
 #include "objfiles.h"
diff --git a/gdb/top.c b/gdb/top.c
index af27fcbcb0..ed109344b2 100644
--- a/gdb/top.c
+++ b/gdb/top.c
@@ -41,7 +41,6 @@
 #include "top.h"
 #include "version.h"
 #include "serial.h"
-#include "doublest.h"
 #include "main.h"
 #include "event-loop.h"
 #include "gdbthread.h"
diff --git a/gdb/value.c b/gdb/value.c
index d0871ef5bb..347eba5978 100644
--- a/gdb/value.c
+++ b/gdb/value.c
@@ -29,6 +29,7 @@
 #include "language.h"
 #include "demangle.h"
 #include "doublest.h"
+#include "floatformat.h"
 #include "regcache.h"
 #include "block.h"
 #include "dfp.h"
diff --git a/gdb/vax-tdep.c b/gdb/vax-tdep.c
index 4ff12fde3f..04203de1c4 100644
--- a/gdb/vax-tdep.c
+++ b/gdb/vax-tdep.c
@@ -20,7 +20,6 @@
 #include "defs.h"
 #include "arch-utils.h"
 #include "dis-asm.h"
-#include "floatformat.h"
 #include "frame.h"
 #include "frame-base.h"
 #include "frame-unwind.h"
diff --git a/gdb/xstormy16-tdep.c b/gdb/xstormy16-tdep.c
index bed4305d23..153375a1bd 100644
--- a/gdb/xstormy16-tdep.c
+++ b/gdb/xstormy16-tdep.c
@@ -30,9 +30,7 @@
 #include "dis-asm.h"
 #include "inferior.h"
 #include "arch-utils.h"
-#include "floatformat.h"
 #include "regcache.h"
-#include "doublest.h"
 #include "osabi.h"
 #include "objfiles.h"
 #include "common/byte-vector.h"
diff --git a/gdb/xtensa-tdep.c b/gdb/xtensa-tdep.c
index 51fa520702..e8f6eb2c59 100644
--- a/gdb/xtensa-tdep.c
+++ b/gdb/xtensa-tdep.c
@@ -29,7 +29,6 @@
 #include "dis-asm.h"
 #include "inferior.h"
 #include "osabi.h"
-#include "floatformat.h"
 #include "regcache.h"
 #include "reggroups.h"
 #include "regset.h"