gdb, gdbserver, gdbsupport: fix leading space vs tabs issues

Many spots incorrectly use only spaces for indentation (for example,
there are a lot of spots in ada-lang.c).  I've always found it awkward
when I needed to edit one of these spots: do I keep the original wrong
indentation, or do I fix it?  What if the lines around it are also
wrong, do I fix them too?  I probably don't want to fix them in the same
patch, to avoid adding noise to my patch.

So I propose to fix as much as possible once and for all (hopefully).

One typical counter argument for this is that it makes code archeology
more difficult, because git-blame will show this commit as the last
change for these lines.  My counter counter argument is: when
git-blaming, you often need to do "blame the file at the parent commit"
anyway, to go past some other refactor that touched the line you are
interested in, but is not the change you are looking for.  So you
already need a somewhat efficient way to do this.

Using some interactive tool, rather than plain git-blame, makes this
trivial.  For example, I use "tig blame <file>", where going back past
the commit that changed the currently selected line is one keystroke.
It looks like Magit in Emacs does it too (though I've never used it).
Web viewers of Github and Gitlab do it too.  My point is that it won't
really make archeology more difficult.

The other typical counter argument is that it will cause conflicts with
existing patches.  That's true... but it's a one time cost, and those
are not conflicts that are difficult to resolve.  I have also tried "git
rebase --ignore-whitespace", it seems to work well.  Although that will
re-introduce the faulty indentation, so one needs to take care of fixing
the indentation in the patch after that (which is easy).

gdb/ChangeLog:

	* aarch64-linux-tdep.c: Fix indentation.
	* aarch64-ravenscar-thread.c: Fix indentation.
	* aarch64-tdep.c: Fix indentation.
	* aarch64-tdep.h: Fix indentation.
	* ada-lang.c: Fix indentation.
	* ada-lang.h: Fix indentation.
	* ada-tasks.c: Fix indentation.
	* ada-typeprint.c: Fix indentation.
	* ada-valprint.c: Fix indentation.
	* ada-varobj.c: Fix indentation.
	* addrmap.c: Fix indentation.
	* addrmap.h: Fix indentation.
	* agent.c: Fix indentation.
	* aix-thread.c: Fix indentation.
	* alpha-bsd-nat.c: Fix indentation.
	* alpha-linux-tdep.c: Fix indentation.
	* alpha-mdebug-tdep.c: Fix indentation.
	* alpha-nbsd-tdep.c: Fix indentation.
	* alpha-obsd-tdep.c: Fix indentation.
	* alpha-tdep.c: Fix indentation.
	* amd64-bsd-nat.c: Fix indentation.
	* amd64-darwin-tdep.c: Fix indentation.
	* amd64-linux-nat.c: Fix indentation.
	* amd64-linux-tdep.c: Fix indentation.
	* amd64-nat.c: Fix indentation.
	* amd64-obsd-tdep.c: Fix indentation.
	* amd64-tdep.c: Fix indentation.
	* amd64-windows-tdep.c: Fix indentation.
	* annotate.c: Fix indentation.
	* arc-tdep.c: Fix indentation.
	* arch-utils.c: Fix indentation.
	* arch/arm-get-next-pcs.c: Fix indentation.
	* arch/arm.c: Fix indentation.
	* arm-linux-nat.c: Fix indentation.
	* arm-linux-tdep.c: Fix indentation.
	* arm-nbsd-tdep.c: Fix indentation.
	* arm-pikeos-tdep.c: Fix indentation.
	* arm-tdep.c: Fix indentation.
	* arm-tdep.h: Fix indentation.
	* arm-wince-tdep.c: Fix indentation.
	* auto-load.c: Fix indentation.
	* auxv.c: Fix indentation.
	* avr-tdep.c: Fix indentation.
	* ax-gdb.c: Fix indentation.
	* ax-general.c: Fix indentation.
	* bfin-linux-tdep.c: Fix indentation.
	* block.c: Fix indentation.
	* block.h: Fix indentation.
	* blockframe.c: Fix indentation.
	* bpf-tdep.c: Fix indentation.
	* break-catch-sig.c: Fix indentation.
	* break-catch-syscall.c: Fix indentation.
	* break-catch-throw.c: Fix indentation.
	* breakpoint.c: Fix indentation.
	* breakpoint.h: Fix indentation.
	* bsd-uthread.c: Fix indentation.
	* btrace.c: Fix indentation.
	* build-id.c: Fix indentation.
	* buildsym-legacy.h: Fix indentation.
	* buildsym.c: Fix indentation.
	* c-typeprint.c: Fix indentation.
	* c-valprint.c: Fix indentation.
	* c-varobj.c: Fix indentation.
	* charset.c: Fix indentation.
	* cli/cli-cmds.c: Fix indentation.
	* cli/cli-decode.c: Fix indentation.
	* cli/cli-decode.h: Fix indentation.
	* cli/cli-script.c: Fix indentation.
	* cli/cli-setshow.c: Fix indentation.
	* coff-pe-read.c: Fix indentation.
	* coffread.c: Fix indentation.
	* compile/compile-cplus-types.c: Fix indentation.
	* compile/compile-object-load.c: Fix indentation.
	* compile/compile-object-run.c: Fix indentation.
	* completer.c: Fix indentation.
	* corefile.c: Fix indentation.
	* corelow.c: Fix indentation.
	* cp-abi.h: Fix indentation.
	* cp-namespace.c: Fix indentation.
	* cp-support.c: Fix indentation.
	* cp-valprint.c: Fix indentation.
	* cris-linux-tdep.c: Fix indentation.
	* cris-tdep.c: Fix indentation.
	* darwin-nat-info.c: Fix indentation.
	* darwin-nat.c: Fix indentation.
	* darwin-nat.h: Fix indentation.
	* dbxread.c: Fix indentation.
	* dcache.c: Fix indentation.
	* disasm.c: Fix indentation.
	* dtrace-probe.c: Fix indentation.
	* dwarf2/abbrev.c: Fix indentation.
	* dwarf2/attribute.c: Fix indentation.
	* dwarf2/expr.c: Fix indentation.
	* dwarf2/frame.c: Fix indentation.
	* dwarf2/index-cache.c: Fix indentation.
	* dwarf2/index-write.c: Fix indentation.
	* dwarf2/line-header.c: Fix indentation.
	* dwarf2/loc.c: Fix indentation.
	* dwarf2/macro.c: Fix indentation.
	* dwarf2/read.c: Fix indentation.
	* dwarf2/read.h: Fix indentation.
	* elfread.c: Fix indentation.
	* eval.c: Fix indentation.
	* event-top.c: Fix indentation.
	* exec.c: Fix indentation.
	* exec.h: Fix indentation.
	* expprint.c: Fix indentation.
	* f-lang.c: Fix indentation.
	* f-typeprint.c: Fix indentation.
	* f-valprint.c: Fix indentation.
	* fbsd-nat.c: Fix indentation.
	* fbsd-tdep.c: Fix indentation.
	* findvar.c: Fix indentation.
	* fork-child.c: Fix indentation.
	* frame-unwind.c: Fix indentation.
	* frame-unwind.h: Fix indentation.
	* frame.c: Fix indentation.
	* frv-linux-tdep.c: Fix indentation.
	* frv-tdep.c: Fix indentation.
	* frv-tdep.h: Fix indentation.
	* ft32-tdep.c: Fix indentation.
	* gcore.c: Fix indentation.
	* gdb_bfd.c: Fix indentation.
	* gdbarch.sh: Fix indentation.
	* gdbarch.c: Re-generate
	* gdbarch.h: Re-generate.
	* gdbcore.h: Fix indentation.
	* gdbthread.h: Fix indentation.
	* gdbtypes.c: Fix indentation.
	* gdbtypes.h: Fix indentation.
	* glibc-tdep.c: Fix indentation.
	* gnu-nat.c: Fix indentation.
	* gnu-nat.h: Fix indentation.
	* gnu-v2-abi.c: Fix indentation.
	* gnu-v3-abi.c: Fix indentation.
	* go32-nat.c: Fix indentation.
	* guile/guile-internal.h: Fix indentation.
	* guile/scm-cmd.c: Fix indentation.
	* guile/scm-frame.c: Fix indentation.
	* guile/scm-iterator.c: Fix indentation.
	* guile/scm-math.c: Fix indentation.
	* guile/scm-ports.c: Fix indentation.
	* guile/scm-pretty-print.c: Fix indentation.
	* guile/scm-value.c: Fix indentation.
	* h8300-tdep.c: Fix indentation.
	* hppa-linux-nat.c: Fix indentation.
	* hppa-linux-tdep.c: Fix indentation.
	* hppa-nbsd-nat.c: Fix indentation.
	* hppa-nbsd-tdep.c: Fix indentation.
	* hppa-obsd-nat.c: Fix indentation.
	* hppa-tdep.c: Fix indentation.
	* hppa-tdep.h: Fix indentation.
	* i386-bsd-nat.c: Fix indentation.
	* i386-darwin-nat.c: Fix indentation.
	* i386-darwin-tdep.c: Fix indentation.
	* i386-dicos-tdep.c: Fix indentation.
	* i386-gnu-nat.c: Fix indentation.
	* i386-linux-nat.c: Fix indentation.
	* i386-linux-tdep.c: Fix indentation.
	* i386-nto-tdep.c: Fix indentation.
	* i386-obsd-tdep.c: Fix indentation.
	* i386-sol2-nat.c: Fix indentation.
	* i386-tdep.c: Fix indentation.
	* i386-tdep.h: Fix indentation.
	* i386-windows-tdep.c: Fix indentation.
	* i387-tdep.c: Fix indentation.
	* i387-tdep.h: Fix indentation.
	* ia64-libunwind-tdep.c: Fix indentation.
	* ia64-libunwind-tdep.h: Fix indentation.
	* ia64-linux-nat.c: Fix indentation.
	* ia64-linux-tdep.c: Fix indentation.
	* ia64-tdep.c: Fix indentation.
	* ia64-tdep.h: Fix indentation.
	* ia64-vms-tdep.c: Fix indentation.
	* infcall.c: Fix indentation.
	* infcmd.c: Fix indentation.
	* inferior.c: Fix indentation.
	* infrun.c: Fix indentation.
	* iq2000-tdep.c: Fix indentation.
	* language.c: Fix indentation.
	* linespec.c: Fix indentation.
	* linux-fork.c: Fix indentation.
	* linux-nat.c: Fix indentation.
	* linux-tdep.c: Fix indentation.
	* linux-thread-db.c: Fix indentation.
	* lm32-tdep.c: Fix indentation.
	* m2-lang.c: Fix indentation.
	* m2-typeprint.c: Fix indentation.
	* m2-valprint.c: Fix indentation.
	* m32c-tdep.c: Fix indentation.
	* m32r-linux-tdep.c: Fix indentation.
	* m32r-tdep.c: Fix indentation.
	* m68hc11-tdep.c: Fix indentation.
	* m68k-bsd-nat.c: Fix indentation.
	* m68k-linux-nat.c: Fix indentation.
	* m68k-linux-tdep.c: Fix indentation.
	* m68k-tdep.c: Fix indentation.
	* machoread.c: Fix indentation.
	* macrocmd.c: Fix indentation.
	* macroexp.c: Fix indentation.
	* macroscope.c: Fix indentation.
	* macrotab.c: Fix indentation.
	* macrotab.h: Fix indentation.
	* main.c: Fix indentation.
	* mdebugread.c: Fix indentation.
	* mep-tdep.c: Fix indentation.
	* mi/mi-cmd-catch.c: Fix indentation.
	* mi/mi-cmd-disas.c: Fix indentation.
	* mi/mi-cmd-env.c: Fix indentation.
	* mi/mi-cmd-stack.c: Fix indentation.
	* mi/mi-cmd-var.c: Fix indentation.
	* mi/mi-cmds.c: Fix indentation.
	* mi/mi-main.c: Fix indentation.
	* mi/mi-parse.c: Fix indentation.
	* microblaze-tdep.c: Fix indentation.
	* minidebug.c: Fix indentation.
	* minsyms.c: Fix indentation.
	* mips-linux-nat.c: Fix indentation.
	* mips-linux-tdep.c: Fix indentation.
	* mips-nbsd-tdep.c: Fix indentation.
	* mips-tdep.c: Fix indentation.
	* mn10300-linux-tdep.c: Fix indentation.
	* mn10300-tdep.c: Fix indentation.
	* moxie-tdep.c: Fix indentation.
	* msp430-tdep.c: Fix indentation.
	* namespace.h: Fix indentation.
	* nat/fork-inferior.c: Fix indentation.
	* nat/gdb_ptrace.h: Fix indentation.
	* nat/linux-namespaces.c: Fix indentation.
	* nat/linux-osdata.c: Fix indentation.
	* nat/netbsd-nat.c: Fix indentation.
	* nat/x86-dregs.c: Fix indentation.
	* nbsd-nat.c: Fix indentation.
	* nbsd-tdep.c: Fix indentation.
	* nios2-linux-tdep.c: Fix indentation.
	* nios2-tdep.c: Fix indentation.
	* nto-procfs.c: Fix indentation.
	* nto-tdep.c: Fix indentation.
	* objfiles.c: Fix indentation.
	* objfiles.h: Fix indentation.
	* opencl-lang.c: Fix indentation.
	* or1k-tdep.c: Fix indentation.
	* osabi.c: Fix indentation.
	* osabi.h: Fix indentation.
	* osdata.c: Fix indentation.
	* p-lang.c: Fix indentation.
	* p-typeprint.c: Fix indentation.
	* p-valprint.c: Fix indentation.
	* parse.c: Fix indentation.
	* ppc-linux-nat.c: Fix indentation.
	* ppc-linux-tdep.c: Fix indentation.
	* ppc-nbsd-nat.c: Fix indentation.
	* ppc-nbsd-tdep.c: Fix indentation.
	* ppc-obsd-nat.c: Fix indentation.
	* ppc-ravenscar-thread.c: Fix indentation.
	* ppc-sysv-tdep.c: Fix indentation.
	* ppc64-tdep.c: Fix indentation.
	* printcmd.c: Fix indentation.
	* proc-api.c: Fix indentation.
	* producer.c: Fix indentation.
	* producer.h: Fix indentation.
	* prologue-value.c: Fix indentation.
	* prologue-value.h: Fix indentation.
	* psymtab.c: Fix indentation.
	* python/py-arch.c: Fix indentation.
	* python/py-bpevent.c: Fix indentation.
	* python/py-event.c: Fix indentation.
	* python/py-event.h: Fix indentation.
	* python/py-finishbreakpoint.c: Fix indentation.
	* python/py-frame.c: Fix indentation.
	* python/py-framefilter.c: Fix indentation.
	* python/py-inferior.c: Fix indentation.
	* python/py-infthread.c: Fix indentation.
	* python/py-objfile.c: Fix indentation.
	* python/py-prettyprint.c: Fix indentation.
	* python/py-registers.c: Fix indentation.
	* python/py-signalevent.c: Fix indentation.
	* python/py-stopevent.c: Fix indentation.
	* python/py-stopevent.h: Fix indentation.
	* python/py-threadevent.c: Fix indentation.
	* python/py-tui.c: Fix indentation.
	* python/py-unwind.c: Fix indentation.
	* python/py-value.c: Fix indentation.
	* python/py-xmethods.c: Fix indentation.
	* python/python-internal.h: Fix indentation.
	* python/python.c: Fix indentation.
	* ravenscar-thread.c: Fix indentation.
	* record-btrace.c: Fix indentation.
	* record-full.c: Fix indentation.
	* record.c: Fix indentation.
	* reggroups.c: Fix indentation.
	* regset.h: Fix indentation.
	* remote-fileio.c: Fix indentation.
	* remote.c: Fix indentation.
	* reverse.c: Fix indentation.
	* riscv-linux-tdep.c: Fix indentation.
	* riscv-ravenscar-thread.c: Fix indentation.
	* riscv-tdep.c: Fix indentation.
	* rl78-tdep.c: Fix indentation.
	* rs6000-aix-tdep.c: Fix indentation.
	* rs6000-lynx178-tdep.c: Fix indentation.
	* rs6000-nat.c: Fix indentation.
	* rs6000-tdep.c: Fix indentation.
	* rust-lang.c: Fix indentation.
	* rx-tdep.c: Fix indentation.
	* s12z-tdep.c: Fix indentation.
	* s390-linux-tdep.c: Fix indentation.
	* score-tdep.c: Fix indentation.
	* ser-base.c: Fix indentation.
	* ser-mingw.c: Fix indentation.
	* ser-uds.c: Fix indentation.
	* ser-unix.c: Fix indentation.
	* serial.c: Fix indentation.
	* sh-linux-tdep.c: Fix indentation.
	* sh-nbsd-tdep.c: Fix indentation.
	* sh-tdep.c: Fix indentation.
	* skip.c: Fix indentation.
	* sol-thread.c: Fix indentation.
	* solib-aix.c: Fix indentation.
	* solib-darwin.c: Fix indentation.
	* solib-frv.c: Fix indentation.
	* solib-svr4.c: Fix indentation.
	* solib.c: Fix indentation.
	* source.c: Fix indentation.
	* sparc-linux-tdep.c: Fix indentation.
	* sparc-nbsd-tdep.c: Fix indentation.
	* sparc-obsd-tdep.c: Fix indentation.
	* sparc-ravenscar-thread.c: Fix indentation.
	* sparc-tdep.c: Fix indentation.
	* sparc64-linux-tdep.c: Fix indentation.
	* sparc64-nbsd-tdep.c: Fix indentation.
	* sparc64-obsd-tdep.c: Fix indentation.
	* sparc64-tdep.c: Fix indentation.
	* stabsread.c: Fix indentation.
	* stack.c: Fix indentation.
	* stap-probe.c: Fix indentation.
	* stubs/ia64vms-stub.c: Fix indentation.
	* stubs/m32r-stub.c: Fix indentation.
	* stubs/m68k-stub.c: Fix indentation.
	* stubs/sh-stub.c: Fix indentation.
	* stubs/sparc-stub.c: Fix indentation.
	* symfile-mem.c: Fix indentation.
	* symfile.c: Fix indentation.
	* symfile.h: Fix indentation.
	* symmisc.c: Fix indentation.
	* symtab.c: Fix indentation.
	* symtab.h: Fix indentation.
	* target-float.c: Fix indentation.
	* target.c: Fix indentation.
	* target.h: Fix indentation.
	* tic6x-tdep.c: Fix indentation.
	* tilegx-linux-tdep.c: Fix indentation.
	* tilegx-tdep.c: Fix indentation.
	* top.c: Fix indentation.
	* tracefile-tfile.c: Fix indentation.
	* tracepoint.c: Fix indentation.
	* tui/tui-disasm.c: Fix indentation.
	* tui/tui-io.c: Fix indentation.
	* tui/tui-regs.c: Fix indentation.
	* tui/tui-stack.c: Fix indentation.
	* tui/tui-win.c: Fix indentation.
	* tui/tui-winsource.c: Fix indentation.
	* tui/tui.c: Fix indentation.
	* typeprint.c: Fix indentation.
	* ui-out.h: Fix indentation.
	* unittests/copy_bitwise-selftests.c: Fix indentation.
	* unittests/memory-map-selftests.c: Fix indentation.
	* utils.c: Fix indentation.
	* v850-tdep.c: Fix indentation.
	* valarith.c: Fix indentation.
	* valops.c: Fix indentation.
	* valprint.c: Fix indentation.
	* valprint.h: Fix indentation.
	* value.c: Fix indentation.
	* value.h: Fix indentation.
	* varobj.c: Fix indentation.
	* vax-tdep.c: Fix indentation.
	* windows-nat.c: Fix indentation.
	* windows-tdep.c: Fix indentation.
	* xcoffread.c: Fix indentation.
	* xml-syscall.c: Fix indentation.
	* xml-tdesc.c: Fix indentation.
	* xstormy16-tdep.c: Fix indentation.
	* xtensa-config.c: Fix indentation.
	* xtensa-linux-nat.c: Fix indentation.
	* xtensa-linux-tdep.c: Fix indentation.
	* xtensa-tdep.c: Fix indentation.

gdbserver/ChangeLog:

	* ax.cc: Fix indentation.
	* dll.cc: Fix indentation.
	* inferiors.h: Fix indentation.
	* linux-low.cc: Fix indentation.
	* linux-nios2-low.cc: Fix indentation.
	* linux-ppc-ipa.cc: Fix indentation.
	* linux-ppc-low.cc: Fix indentation.
	* linux-x86-low.cc: Fix indentation.
	* linux-xtensa-low.cc: Fix indentation.
	* regcache.cc: Fix indentation.
	* server.cc: Fix indentation.
	* tracepoint.cc: Fix indentation.

gdbsupport/ChangeLog:

	* common-exceptions.h: Fix indentation.
	* event-loop.cc: Fix indentation.
	* fileio.cc: Fix indentation.
	* filestuff.cc: Fix indentation.
	* gdb-dlfcn.cc: Fix indentation.
	* gdb_string_view.h: Fix indentation.
	* job-control.cc: Fix indentation.
	* signals.cc: Fix indentation.

Change-Id: I4bad7ae6be0fbe14168b8ebafb98ffe14964a695

1 files changed, 79 insertions, 79 deletions

diff --git a/gdb/python/py-unwind.c b/gdb/python/py-unwind.c
index 55d6a31..4571ef6 100644
--- a/gdb/python/py-unwind.c
+++ b/gdb/python/py-unwind.c
@@ -112,11 +112,11 @@ pyuw_value_obj_to_pointer (PyObject *pyo_value, CORE_ADDR *addr)
   try
     {
       if ((value = value_object_to_value (pyo_value)) != NULL)
-        {
-          *addr = unpack_pointer (value_type (value),
-                                  value_contents (value));
-          rc = 1;
-        }
+	{
+	  *addr = unpack_pointer (value_type (value),
+				  value_contents (value));
+	  rc = 1;
+	}
     }
   catch (const gdb_exception &except)
     {
@@ -133,7 +133,7 @@ pyuw_value_obj_to_pointer (PyObject *pyo_value, CORE_ADDR *addr)
 
 static int
 pyuw_object_attribute_to_pointer (PyObject *pyo, const char *attr_name,
-                                  CORE_ADDR *addr)
+				  CORE_ADDR *addr)
 {
   int rc = 0;
 
@@ -142,14 +142,14 @@ pyuw_object_attribute_to_pointer (PyObject *pyo, const char *attr_name,
       gdbpy_ref<> pyo_value (PyObject_GetAttrString (pyo, attr_name));
 
       if (pyo_value != NULL && pyo_value != Py_None)
-        {
-          rc = pyuw_value_obj_to_pointer (pyo_value.get (), addr);
-          if (!rc)
-            PyErr_Format (
-                PyExc_ValueError,
-                _("The value of the '%s' attribute is not a pointer."),
-                attr_name);
-        }
+	{
+	  rc = pyuw_value_obj_to_pointer (pyo_value.get (), addr);
+	  if (!rc)
+	    PyErr_Format (
+		PyExc_ValueError,
+		_("The value of the '%s' attribute is not a pointer."),
+		attr_name);
+	}
     }
   return rc;
 }
@@ -173,24 +173,24 @@ unwind_infopy_str (PyObject *self)
     stb.printf ("\nSaved registers: (");
     for (const saved_reg &reg : *unwind_info->saved_regs)
       {
-        struct value *value = value_object_to_value (reg.value.get ());
-
-        stb.printf ("%s(%d, ", sep, reg.number);
-        if (value != NULL)
-          {
-            try
-              {
-                value_print (value, &stb, &opts);
-                stb.puts (")");
-              }
-            catch (const gdb_exception &except)
-              {
-                GDB_PY_HANDLE_EXCEPTION (except);
-              }
-          }
-        else
-          stb.puts ("<BAD>)");
-        sep = ", ";
+	struct value *value = value_object_to_value (reg.value.get ());
+
+	stb.printf ("%s(%d, ", sep, reg.number);
+	if (value != NULL)
+	  {
+	    try
+	      {
+		value_print (value, &stb, &opts);
+		stb.puts (")");
+	      }
+	    catch (const gdb_exception &except)
+	      {
+		GDB_PY_HANDLE_EXCEPTION (except);
+	      }
+	  }
+	else
+	  stb.puts ("<BAD>)");
+	sep = ", ";
       }
     stb.puts (")");
   }
@@ -203,7 +203,7 @@ unwind_infopy_str (PyObject *self)
 
 static PyObject *
 pyuw_create_unwind_info (PyObject *pyo_pending_frame,
-                         struct frame_id frame_id)
+			 struct frame_id frame_id)
 {
   unwind_info_object *unwind_info
       = PyObject_New (unwind_info_object, &unwind_info_object_type);
@@ -211,7 +211,7 @@ pyuw_create_unwind_info (PyObject *pyo_pending_frame,
   if (((pending_frame_object *) pyo_pending_frame)->frame_info == NULL)
     {
       PyErr_SetString (PyExc_ValueError,
-                       "Attempting to use stale PendingFrame");
+		       "Attempting to use stale PendingFrame");
       return NULL;
     }
   unwind_info->frame_id = frame_id;
@@ -237,11 +237,11 @@ unwind_infopy_add_saved_register (PyObject *self, PyObject *args)
   if (pending_frame->frame_info == NULL)
     {
       PyErr_SetString (PyExc_ValueError,
-                       "UnwindInfo instance refers to a stale PendingFrame");
+		       "UnwindInfo instance refers to a stale PendingFrame");
       return NULL;
     }
   if (!PyArg_UnpackTuple (args, "previous_frame_register", 2, 2,
-                          &pyo_reg_id, &pyo_reg_value))
+			  &pyo_reg_id, &pyo_reg_value))
     return NULL;
   if (!gdbpy_parse_register_id (pending_frame->gdbarch, pyo_reg_id, &regnum))
     {
@@ -255,19 +255,19 @@ unwind_infopy_add_saved_register (PyObject *self, PyObject *args)
     if (pyo_reg_value == NULL
       || (value = value_object_to_value (pyo_reg_value)) == NULL)
       {
-        PyErr_SetString (PyExc_ValueError, "Bad register value");
-        return NULL;
+	PyErr_SetString (PyExc_ValueError, "Bad register value");
+	return NULL;
       }
     data_size = register_size (pending_frame->gdbarch, regnum);
     if (data_size != TYPE_LENGTH (value_type (value)))
       {
-        PyErr_Format (
-            PyExc_ValueError,
-            "The value of the register returned by the Python "
-            "sniffer has unexpected size: %u instead of %u.",
-            (unsigned) TYPE_LENGTH (value_type (value)),
-            (unsigned) data_size);
-        return NULL;
+	PyErr_Format (
+	    PyExc_ValueError,
+	    "The value of the register returned by the Python "
+	    "sniffer has unexpected size: %u instead of %u.",
+	    (unsigned) TYPE_LENGTH (value_type (value)),
+	    (unsigned) data_size);
+	return NULL;
       }
   }
   {
@@ -275,12 +275,12 @@ unwind_infopy_add_saved_register (PyObject *self, PyObject *args)
     bool found = false;
     for (saved_reg &reg : *unwind_info->saved_regs)
       {
-        if (regnum == reg.number)
-          {
+	if (regnum == reg.number)
+	  {
 	    found = true;
 	    reg.value = std::move (new_value);
-            break;
-          }
+	    break;
+	  }
       }
     if (!found)
       unwind_info->saved_regs->emplace_back (regnum, std::move (new_value));
@@ -339,7 +339,7 @@ pending_framepy_read_register (PyObject *self, PyObject *args)
   if (pending_frame->frame_info == NULL)
     {
       PyErr_SetString (PyExc_ValueError,
-                       "Attempting to read register from stale PendingFrame");
+		       "Attempting to read register from stale PendingFrame");
       return NULL;
     }
   if (!PyArg_UnpackTuple (args, "read_register", 1, 1, &pyo_reg_id))
@@ -359,9 +359,9 @@ pending_framepy_read_register (PyObject *self, PyObject *args)
 	 handle the user register case.  */
       val = value_of_register (regnum, pending_frame->frame_info);
       if (val == NULL)
-        PyErr_Format (PyExc_ValueError,
-                      "Cannot read register %d from frame.",
-                      regnum);
+	PyErr_Format (PyExc_ValueError,
+		      "Cannot read register %d from frame.",
+		      regnum);
     }
   catch (const gdb_exception &except)
     {
@@ -387,7 +387,7 @@ pending_framepy_create_unwind_info (PyObject *self, PyObject *args)
   if (!pyuw_object_attribute_to_pointer (pyo_frame_id, "sp", &sp))
     {
       PyErr_SetString (PyExc_ValueError,
-                       _("frame_id should have 'sp' attribute."));
+		       _("frame_id should have 'sp' attribute."));
       return NULL;
     }
 
@@ -406,7 +406,7 @@ pending_framepy_create_unwind_info (PyObject *self, PyObject *args)
     return pyuw_create_unwind_info (self, frame_id_build (sp, pc));
   else
     return pyuw_create_unwind_info (self,
-                                    frame_id_build_special (sp, pc, special));
+				    frame_id_build_special (sp, pc, special));
 }
 
 /* Implementation of PendingFrame.architecture (self) -> gdb.Architecture.  */
@@ -419,7 +419,7 @@ pending_framepy_architecture (PyObject *self, PyObject *args)
   if (pending_frame->frame_info == NULL)
     {
       PyErr_SetString (PyExc_ValueError,
-                       "Attempting to read register from stale PendingFrame");
+		       "Attempting to read register from stale PendingFrame");
       return NULL;
     }
   return gdbarch_to_arch_object (pending_frame->gdbarch);
@@ -429,7 +429,7 @@ pending_framepy_architecture (PyObject *self, PyObject *args)
 
 static void
 pyuw_this_id (struct frame_info *this_frame, void **cache_ptr,
-              struct frame_id *this_id)
+	      struct frame_id *this_id)
 {
   *this_id = ((cached_frame_info *) *cache_ptr)->frame_id;
   if (pyuw_debug >= 1)
@@ -444,18 +444,18 @@ pyuw_this_id (struct frame_info *this_frame, void **cache_ptr,
 
 static struct value *
 pyuw_prev_register (struct frame_info *this_frame, void **cache_ptr,
-                    int regnum)
+		    int regnum)
 {
   cached_frame_info *cached_frame = (cached_frame_info *) *cache_ptr;
   cached_reg_t *reg_info = cached_frame->reg;
   cached_reg_t *reg_info_end = reg_info + cached_frame->reg_count;
 
   TRACE_PY_UNWIND (1, "%s (frame=%p,...,reg=%d)\n", __FUNCTION__, this_frame,
-                   regnum);
+		   regnum);
   for (; reg_info < reg_info_end; ++reg_info)
     {
       if (regnum == reg_info->num)
-        return frame_unwind_got_bytes (this_frame, regnum, reg_info->data);
+	return frame_unwind_got_bytes (this_frame, regnum, reg_info->data);
     }
 
   return frame_unwind_got_optimized (this_frame, regnum);
@@ -465,7 +465,7 @@ pyuw_prev_register (struct frame_info *this_frame, void **cache_ptr,
 
 static int
 pyuw_sniffer (const struct frame_unwind *self, struct frame_info *this_frame,
-              void **cache_ptr)
+	      void **cache_ptr)
 {
   struct gdbarch *gdbarch = (struct gdbarch *) (self->unwind_data);
   cached_frame_info *cached_frame;
@@ -473,8 +473,8 @@ pyuw_sniffer (const struct frame_unwind *self, struct frame_info *this_frame,
   gdbpy_enter enter_py (gdbarch, current_language);
 
   TRACE_PY_UNWIND (3, "%s (SP=%s, PC=%s)\n", __FUNCTION__,
-                   paddress (gdbarch, get_frame_sp (this_frame)),
-                   paddress (gdbarch, get_frame_pc (this_frame)));
+		   paddress (gdbarch, get_frame_sp (this_frame)),
+		   paddress (gdbarch, get_frame_pc (this_frame)));
 
   /* Create PendingFrame instance to pass to sniffers.  */
   pending_frame_object *pfo = PyObject_New (pending_frame_object,
@@ -494,8 +494,8 @@ pyuw_sniffer (const struct frame_unwind *self, struct frame_info *this_frame,
       || ! PyObject_HasAttrString (gdb_python_module, "_execute_unwinders"))
     {
       PyErr_SetString (PyExc_NameError,
-                       "Installation error: gdb._execute_unwinders function "
-                       "is missing");
+		       "Installation error: gdb._execute_unwinders function "
+		       "is missing");
       gdbpy_print_stack ();
       return 0;
     }
@@ -522,7 +522,7 @@ pyuw_sniffer (const struct frame_unwind *self, struct frame_info *this_frame,
 
   /* Received UnwindInfo, cache data.  */
   if (PyObject_IsInstance (pyo_unwind_info.get (),
-                           (PyObject *) &unwind_info_object_type) <= 0)
+			   (PyObject *) &unwind_info_object_type) <= 0)
     error (_("A Unwinder should return gdb.UnwindInfo instance."));
 
   {
@@ -543,17 +543,17 @@ pyuw_sniffer (const struct frame_unwind *self, struct frame_info *this_frame,
       {
 	saved_reg *reg = &(*unwind_info->saved_regs)[i];
 
-        struct value *value = value_object_to_value (reg->value.get ());
-        size_t data_size = register_size (gdbarch, reg->number);
+	struct value *value = value_object_to_value (reg->value.get ());
+	size_t data_size = register_size (gdbarch, reg->number);
 
 	cached_frame->reg[i].num = reg->number;
 
-        /* `value' validation was done before, just assert.  */
-        gdb_assert (value != NULL);
-        gdb_assert (data_size == TYPE_LENGTH (value_type (value)));
+	/* `value' validation was done before, just assert.  */
+	gdb_assert (value != NULL);
+	gdb_assert (data_size == TYPE_LENGTH (value_type (value)));
 
 	cached_frame->reg[i].data = (gdb_byte *) xmalloc (data_size);
-        memcpy (cached_frame->reg[i].data, value_contents (value), data_size);
+	memcpy (cached_frame->reg[i].data, value_contents (value), data_size);
       }
   }
 
@@ -600,7 +600,7 @@ pyuw_on_new_gdbarch (struct gdbarch *newarch)
   if (!data->unwinder_registered)
     {
       struct frame_unwind *unwinder
-          = GDBARCH_OBSTACK_ZALLOC (newarch, struct frame_unwind);
+	  = GDBARCH_OBSTACK_ZALLOC (newarch, struct frame_unwind);
 
       unwinder->type = NORMAL_FRAME;
       unwinder->stop_reason = default_frame_unwind_stop_reason;
@@ -622,12 +622,12 @@ gdbpy_initialize_unwind (void)
   int rc;
   add_setshow_zuinteger_cmd
       ("py-unwind", class_maintenance, &pyuw_debug,
-        _("Set Python unwinder debugging."),
-        _("Show Python unwinder debugging."),
-        _("When non-zero, Python unwinder debugging is enabled."),
-        NULL,
-        NULL,
-        &setdebuglist, &showdebuglist);
+	_("Set Python unwinder debugging."),
+	_("Show Python unwinder debugging."),
+	_("When non-zero, Python unwinder debugging is enabled."),
+	NULL,
+	NULL,
+	&setdebuglist, &showdebuglist);
   pyuw_gdbarch_data
       = gdbarch_data_register_post_init (pyuw_gdbarch_data_init);
   gdb::observers::architecture_changed.attach (pyuw_on_new_gdbarch);