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, 87 insertions, 87 deletions

diff --git a/gdb/printcmd.c b/gdb/printcmd.c
index f9b42cf..f7186c2 100644
--- a/gdb/printcmd.c
+++ b/gdb/printcmd.c
@@ -446,7 +446,7 @@ print_scalar_formatted (const gdb_byte *valaddr, struct type *type,
     {
       type = float_type_from_length (type);
       if (type->code () != TYPE_CODE_FLT)
-        format = 0;
+	format = 0;
     }
 
   switch (format)
@@ -547,7 +547,7 @@ print_address_symbolic (struct gdbarch *gdbarch, CORE_ADDR addr,
   int line = 0;
 
   if (build_address_symbolic (gdbarch, addr, do_demangle, false, &name,
-                              &offset, &filename, &line, &unmapped))
+			      &offset, &filename, &line, &unmapped))
     return 0;
 
   fputs_filtered (leadin, stream);
@@ -660,7 +660,7 @@ build_address_symbolic (struct gdbarch *gdbarch,
 	   3) The symbol address is not identical to that of the address
 	      under consideration.  */
       if (symbol == NULL ||
-           (!prefer_sym_over_minsym
+	   (!prefer_sym_over_minsym
 	    && BMSYMBOL_VALUE_ADDRESS (msymbol) == addr
 	    && name_location != addr))
 	{
@@ -780,7 +780,7 @@ print_address_demangle (const struct value_print_options *opts,
 
 static CORE_ADDR
 find_instruction_backward (struct gdbarch *gdbarch, CORE_ADDR addr,
-                           int inst_count, int *inst_read)
+			   int inst_count, int *inst_read)
 {
   /* The vector PCS is used to store instruction addresses within
      a pc range.  */
@@ -803,28 +803,28 @@ find_instruction_backward (struct gdbarch *gdbarch, CORE_ADDR addr,
       pcs.clear ();
       sal = find_pc_sect_line (loop_start, NULL, 1);
       if (sal.line <= 0)
-        {
-          /* We reach here when line info is not available.  In this case,
-             we print a message and just exit the loop.  The return value
-             is calculated after the loop.  */
-          printf_filtered (_("No line number information available "
-                             "for address "));
-          wrap_here ("  ");
-          print_address (gdbarch, loop_start - 1, gdb_stdout);
-          printf_filtered ("\n");
-          break;
-        }
+	{
+	  /* We reach here when line info is not available.  In this case,
+	     we print a message and just exit the loop.  The return value
+	     is calculated after the loop.  */
+	  printf_filtered (_("No line number information available "
+			     "for address "));
+	  wrap_here ("  ");
+	  print_address (gdbarch, loop_start - 1, gdb_stdout);
+	  printf_filtered ("\n");
+	  break;
+	}
 
       loop_end = loop_start;
       loop_start = sal.pc;
 
       /* This loop pushes instruction addresses in the range from
-         LOOP_START to LOOP_END.  */
+	 LOOP_START to LOOP_END.  */
       for (p = loop_start; p < loop_end;)
-        {
+	{
 	  pcs.push_back (p);
-          p += gdb_insn_length (gdbarch, p);
-        }
+	  p += gdb_insn_length (gdbarch, p);
+	}
 
       inst_count -= pcs.size ();
       *inst_read += pcs.size ();
@@ -837,14 +837,14 @@ find_instruction_backward (struct gdbarch *gdbarch, CORE_ADDR addr,
      the reason below.
      Let's assume the following instruction addresses and run 'x/-4i 0x400e'.
        Line X of File
-          0x4000
-          0x4001
-          0x4005
+	  0x4000
+	  0x4001
+	  0x4005
        Line Y of File
-          0x4009
-          0x400c
+	  0x4009
+	  0x400c
        => 0x400e
-          0x4011
+	  0x4011
      find_instruction_backward is called with INST_COUNT = 4 and expected to
      return 0x4001.  When we reach here, INST_COUNT is set to -1 because
      it was subtracted by 2 (from Line Y) and 3 (from Line X).  The value
@@ -870,7 +870,7 @@ find_instruction_backward (struct gdbarch *gdbarch, CORE_ADDR addr,
 
 static int
 read_memory_backward (struct gdbarch *gdbarch,
-                      CORE_ADDR memaddr, gdb_byte *myaddr, int len)
+		      CORE_ADDR memaddr, gdb_byte *myaddr, int len)
 {
   int errcode;
   int nread;      /* Number of bytes actually read.  */
@@ -888,16 +888,16 @@ read_memory_backward (struct gdbarch *gdbarch,
       memaddr += len;
       myaddr += len;
       for (nread = 0; nread < len; ++nread)
-        {
-          errcode = target_read_memory (--memaddr, --myaddr, 1);
-          if (errcode != 0)
-            {
-              /* The read was unsuccessful, so exit the loop.  */
-              printf_filtered (_("Cannot access memory at address %s\n"),
-                               paddress (gdbarch, memaddr));
-              break;
-            }
-        }
+	{
+	  errcode = target_read_memory (--memaddr, --myaddr, 1);
+	  if (errcode != 0)
+	    {
+	      /* The read was unsuccessful, so exit the loop.  */
+	      printf_filtered (_("Cannot access memory at address %s\n"),
+			       paddress (gdbarch, memaddr));
+	      break;
+	    }
+	}
     }
   return nread;
 }
@@ -922,9 +922,9 @@ integer_is_zero (const gdb_byte *x, int len)
 
 static CORE_ADDR
 find_string_backward (struct gdbarch *gdbarch,
-                      CORE_ADDR addr, int count, int char_size,
-                      const struct value_print_options *options,
-                      int *strings_counted)
+		      CORE_ADDR addr, int count, int char_size,
+		      const struct value_print_options *options,
+		      int *strings_counted)
 {
   const int chunk_size = 0x20;
   int read_error = 0;
@@ -942,25 +942,25 @@ find_string_backward (struct gdbarch *gdbarch,
 
       addr -= chars_to_read * char_size;
       chars_read = read_memory_backward (gdbarch, addr, buffer.data (),
-                                         chars_to_read * char_size);
+					 chars_to_read * char_size);
       chars_read /= char_size;
       read_error = (chars_read == chars_to_read) ? 0 : 1;
       /* Searching for '\0' from the end of buffer in backward direction.  */
       for (i = 0; i < chars_read && count > 0 ; ++i, ++chars_counted)
-        {
-          int offset = (chars_to_read - i - 1) * char_size;
-
-          if (integer_is_zero (&buffer[offset], char_size)
-              || chars_counted == options->print_max)
-            {
-              /* Found '\0' or reached print_max.  As OFFSET is the offset to
-                 '\0', we add CHAR_SIZE to return the start address of
-                 a string.  */
-              --count;
-              string_start_addr = addr + offset + char_size;
-              chars_counted = 0;
-            }
-        }
+	{
+	  int offset = (chars_to_read - i - 1) * char_size;
+
+	  if (integer_is_zero (&buffer[offset], char_size)
+	      || chars_counted == options->print_max)
+	    {
+	      /* Found '\0' or reached print_max.  As OFFSET is the offset to
+		 '\0', we add CHAR_SIZE to return the start address of
+		 a string.  */
+	      --count;
+	      string_start_addr = addr + offset + char_size;
+	      chars_counted = 0;
+	    }
+	}
     }
 
   /* Update STRINGS_COUNTED with the actual number of loaded strings.  */
@@ -969,7 +969,7 @@ find_string_backward (struct gdbarch *gdbarch,
   if (read_error != 0)
     {
       /* In error case, STRING_START_ADDR is pointing to the string that
-         was last successfully loaded.  Rewind the partially loaded string.  */
+	 was last successfully loaded.  Rewind the partially loaded string.  */
       string_start_addr -= chars_counted * char_size;
     }
 
@@ -1040,15 +1040,15 @@ do_examine (struct format_data fmt, struct gdbarch *gdbarch, CORE_ADDR addr)
       else if (size == 'w')
 	char_type = builtin_type (next_gdbarch)->builtin_char32;
       if (char_type)
-        val_type = char_type;
+	val_type = char_type;
       else
-        {
+	{
 	  if (size != '\0' && size != 'b')
 	    warning (_("Unable to display strings with "
 		       "size '%c', using 'b' instead."), size);
 	  size = 'b';
 	  val_type = builtin_type (next_gdbarch)->builtin_int8;
-        }
+	}
     }
 
   maxelts = 8;
@@ -1064,32 +1064,32 @@ do_examine (struct format_data fmt, struct gdbarch *gdbarch, CORE_ADDR addr)
   if (count < 0)
     {
       /* This is the negative repeat count case.
-         We rewind the address based on the given repeat count and format,
-         then examine memory from there in forward direction.  */
+	 We rewind the address based on the given repeat count and format,
+	 then examine memory from there in forward direction.  */
 
       count = -count;
       if (format == 'i')
-        {
-          next_address = find_instruction_backward (gdbarch, addr, count,
-                                                    &count);
-        }
+	{
+	  next_address = find_instruction_backward (gdbarch, addr, count,
+						    &count);
+	}
       else if (format == 's')
-        {
-          next_address = find_string_backward (gdbarch, addr, count,
-                                               TYPE_LENGTH (val_type),
-                                               &opts, &count);
-        }
+	{
+	  next_address = find_string_backward (gdbarch, addr, count,
+					       TYPE_LENGTH (val_type),
+					       &opts, &count);
+	}
       else
-        {
-          next_address = addr - count * TYPE_LENGTH (val_type);
-        }
+	{
+	  next_address = addr - count * TYPE_LENGTH (val_type);
+	}
 
       /* The following call to print_formatted updates next_address in every
-         iteration.  In backward case, we store the start address here
-         and update next_address with it before exiting the function.  */
+	 iteration.  In backward case, we store the start address here
+	 and update next_address with it before exiting the function.  */
       addr_rewound = (format == 's'
-                      ? next_address - TYPE_LENGTH (val_type)
-                      : next_address);
+		      ? next_address - TYPE_LENGTH (val_type)
+		      : next_address);
       need_to_update_next_address = 1;
     }
 
@@ -1682,15 +1682,15 @@ x_command (const char *exp, int from_tty)
     {
       expression_up expr = parse_expression (exp);
       /* Cause expression not to be there any more if this command is
-         repeated with Newline.  But don't clobber a user-defined
-         command's definition.  */
+	 repeated with Newline.  But don't clobber a user-defined
+	 command's definition.  */
       if (from_tty)
 	set_repeat_arguments ("");
       val = evaluate_expression (expr.get ());
       if (TYPE_IS_REFERENCE (value_type (val)))
 	val = coerce_ref (val);
       /* In rvalue contexts, such as this, functions are coerced into
-         pointers to functions.  This makes "x/i main" work.  */
+	 pointers to functions.  This makes "x/i main" work.  */
       if (value_type (val)->code () == TYPE_CODE_FUNC
 	   && VALUE_LVAL (val) == lval_memory)
 	next_address = value_address (val);
@@ -1717,7 +1717,7 @@ x_command (const char *exp, int from_tty)
   if (last_examine_value != nullptr)
     {
       /* Make last address examined available to the user as $_.  Use
-         the correct pointer type.  */
+	 the correct pointer type.  */
       struct type *pointer_type
 	= lookup_pointer_type (value_type (last_examine_value.get ()));
       set_internalvar (lookup_internalvar ("_"),
@@ -1952,7 +1952,7 @@ do_one_display (struct display *d)
       annotate_display_value ();
 
       try
-        {
+	{
 	  struct value *val;
 	  CORE_ADDR addr;
 
@@ -1991,7 +1991,7 @@ do_one_display (struct display *d)
       opts.raw = d->format.raw;
 
       try
-        {
+	{
 	  struct value *val;
 
 	  val = evaluate_expression (d->exp.get ());
@@ -2583,7 +2583,7 @@ ui_printf (const char *arg, struct ui_file *stream)
 	      DIAGNOSTIC_PUSH
 	      DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL
 	      fprintf_filtered (stream, current_substring,
-                                obstack_base (&output));
+				obstack_base (&output));
 	      DIAGNOSTIC_POP
 	    }
 	    break;
@@ -2594,7 +2594,7 @@ ui_printf (const char *arg, struct ui_file *stream)
 
 	      DIAGNOSTIC_PUSH
 	      DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL
-              fprintf_filtered (stream, current_substring, val);
+	      fprintf_filtered (stream, current_substring, val);
 	      DIAGNOSTIC_POP
 	      break;
 	    }
@@ -2607,7 +2607,7 @@ ui_printf (const char *arg, struct ui_file *stream)
 
 	      DIAGNOSTIC_PUSH
 	      DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL
-              fprintf_filtered (stream, current_substring, val);
+	      fprintf_filtered (stream, current_substring, val);
 	      DIAGNOSTIC_POP
 	      break;
 	    }
@@ -2617,7 +2617,7 @@ ui_printf (const char *arg, struct ui_file *stream)
 
 	      DIAGNOSTIC_PUSH
 	      DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL
-              fprintf_filtered (stream, current_substring, val);
+	      fprintf_filtered (stream, current_substring, val);
 	      DIAGNOSTIC_POP
 	      break;
 	    }
@@ -2627,7 +2627,7 @@ ui_printf (const char *arg, struct ui_file *stream)
 
 	      DIAGNOSTIC_PUSH
 	      DIAGNOSTIC_IGNORE_FORMAT_NONLITERAL
-              fprintf_filtered (stream, current_substring, val);
+	      fprintf_filtered (stream, current_substring, val);
 	      DIAGNOSTIC_POP
 	      break;
 	    }