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, 205 insertions, 205 deletions

diff --git a/gdb/rs6000-tdep.c b/gdb/rs6000-tdep.c
index 2d0efaf..bde3ee7 100644
--- a/gdb/rs6000-tdep.c
+++ b/gdb/rs6000-tdep.c
@@ -243,7 +243,7 @@ ppc_floating_point_unit_p (struct gdbarch *gdbarch)
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
 
   return (tdep->ppc_fp0_regnum >= 0
-          && tdep->ppc_fpscr_regnum >= 0);
+	  && tdep->ppc_fpscr_regnum >= 0);
 }
 
 /* Return non-zero if the architecture described by GDBARCH has
@@ -254,7 +254,7 @@ ppc_altivec_support_p (struct gdbarch *gdbarch)
   struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch);
 
   return (tdep->ppc_vr0_regnum >= 0
-          && tdep->ppc_vrsave_regnum >= 0);
+	  && tdep->ppc_vrsave_regnum >= 0);
 }
 
 /* Check that TABLE[GDB_REGNO] is not already initialized, and then
@@ -302,8 +302,8 @@ init_sim_regno_table (struct gdbarch *arch)
   if (tdep->ppc_fp0_regnum >= 0)
     for (i = 0; i < ppc_num_fprs; i++)
       set_sim_regno (sim_regno,
-                     tdep->ppc_fp0_regnum + i,
-                     sim_ppc_f0_regnum + i);
+		     tdep->ppc_fp0_regnum + i,
+		     sim_ppc_f0_regnum + i);
   if (tdep->ppc_fpscr_regnum >= 0)
     set_sim_regno (sim_regno, tdep->ppc_fpscr_regnum, sim_ppc_fpscr_regnum);
 
@@ -325,15 +325,15 @@ init_sim_regno_table (struct gdbarch *arch)
   if (tdep->ppc_vr0_regnum >= 0)
     {
       for (i = 0; i < ppc_num_vrs; i++)
-        set_sim_regno (sim_regno,
-                       tdep->ppc_vr0_regnum + i,
-                       sim_ppc_vr0_regnum + i);
+	set_sim_regno (sim_regno,
+		       tdep->ppc_vr0_regnum + i,
+		       sim_ppc_vr0_regnum + i);
 
       /* FIXME: jimb/2004-07-15: when we have tdep->ppc_vscr_regnum,
-         we can treat this more like the other cases.  */
+	 we can treat this more like the other cases.  */
       set_sim_regno (sim_regno,
-                     tdep->ppc_vr0_regnum + ppc_num_vrs,
-                     sim_ppc_vscr_regnum);
+		     tdep->ppc_vr0_regnum + ppc_num_vrs,
+		     sim_ppc_vscr_regnum);
     }
   /* vsave is a special-purpose register, so the code below handles it.  */
 
@@ -341,8 +341,8 @@ init_sim_regno_table (struct gdbarch *arch)
   if (tdep->ppc_ev0_upper_regnum >= 0)
     for (i = 0; i < ppc_num_gprs; i++)
       set_sim_regno (sim_regno,
-                     tdep->ppc_ev0_upper_regnum + i,
-                     sim_ppc_rh0_regnum + i);
+		     tdep->ppc_ev0_upper_regnum + i,
+		     sim_ppc_rh0_regnum + i);
   if (tdep->ppc_acc_regnum >= 0)
     set_sim_regno (sim_regno, tdep->ppc_acc_regnum, sim_ppc_acc_regnum);
   /* spefscr is a special-purpose register, so the code below handles it.  */
@@ -686,8 +686,8 @@ insn_changes_sp_or_jumps (unsigned long insn)
   /* Changes the stack pointer.  */
 
   /* NOTE: There are many ways to change the value of a given register.
-           The ways below are those used when the register is R1, the SP,
-           in a funtion's epilogue.  */
+	   The ways below are those used when the register is R1, the SP,
+	   in a funtion's epilogue.  */
 
   if (opcode == 31 && subcode == 444 && a == 1)
     return 1;  /* mr R1,Rn */
@@ -715,17 +715,17 @@ insn_changes_sp_or_jumps (unsigned long insn)
 
    1) scan forward from the point of execution:
        a) If you find an instruction that modifies the stack pointer
-          or transfers control (except a return), execution is not in
-          an epilogue, return.
+	  or transfers control (except a return), execution is not in
+	  an epilogue, return.
        b) Stop scanning if you find a return instruction or reach the
-          end of the function or reach the hard limit for the size of
-          an epilogue.
+	  end of the function or reach the hard limit for the size of
+	  an epilogue.
    2) scan backward from the point of execution:
-        a) If you find an instruction that modifies the stack pointer,
-            execution *is* in an epilogue, return.
-        b) Stop scanning if you reach an instruction that transfers
-           control or the beginning of the function or reach the hard
-           limit for the size of an epilogue.  */
+	a) If you find an instruction that modifies the stack pointer,
+	    execution *is* in an epilogue, return.
+	b) Stop scanning if you reach an instruction that transfers
+	   control or the beginning of the function or reach the hard
+	   limit for the size of an epilogue.  */
 
 static int
 rs6000_in_function_epilogue_frame_p (struct frame_info *curfrm,
@@ -753,10 +753,10 @@ rs6000_in_function_epilogue_frame_p (struct frame_info *curfrm,
   for (scan_pc = pc; scan_pc < epilogue_end; scan_pc += PPC_INSN_SIZE)
     {
       if (!safe_frame_unwind_memory (curfrm, scan_pc, insn_buf, PPC_INSN_SIZE))
-        return 0;
+	return 0;
       insn = extract_unsigned_integer (insn_buf, PPC_INSN_SIZE, byte_order);
       if (insn == 0x4e800020)
-        break;
+	break;
       /* Assume a bctr is a tail call unless it points strictly within
 	 this function.  */
       if (insn == 0x4e800420)
@@ -769,7 +769,7 @@ rs6000_in_function_epilogue_frame_p (struct frame_info *curfrm,
 	    break;
 	}
       if (insn_changes_sp_or_jumps (insn))
-        return 0;
+	return 0;
     }
 
   /* Scan backward until adjustment to stack pointer (R1).  */
@@ -779,10 +779,10 @@ rs6000_in_function_epilogue_frame_p (struct frame_info *curfrm,
        scan_pc -= PPC_INSN_SIZE)
     {
       if (!safe_frame_unwind_memory (curfrm, scan_pc, insn_buf, PPC_INSN_SIZE))
-        return 0;
+	return 0;
       insn = extract_unsigned_integer (insn_buf, PPC_INSN_SIZE, byte_order);
       if (insn_changes_sp_or_jumps (insn))
-        return 1;
+	return 1;
     }
 
   return 0;
@@ -883,7 +883,7 @@ ppc_displaced_step_copy_insn (struct gdbarch *gdbarch,
   write_memory (to, buf, len);
 
   displaced_debug_printf ("copy %s->%s: %s",
-                          paddress (gdbarch, from), paddress (gdbarch, to),
+			  paddress (gdbarch, from), paddress (gdbarch, to),
 			  displaced_step_dump_bytes (buf, len).c_str ());;
 
   /* This is a work around for a problem with g++ 4.8.  */
@@ -1017,16 +1017,16 @@ ppc_deal_with_atomic_sequence (struct regcache *regcache)
       insn = read_memory_integer (loc, PPC_INSN_SIZE, byte_order);
 
       /* Assume that there is at most one conditional branch in the atomic
-         sequence.  If a conditional branch is found, put a breakpoint in 
-         its destination address.  */
+	 sequence.  If a conditional branch is found, put a breakpoint in 
+	 its destination address.  */
       if ((insn & BRANCH_MASK) == BC_INSN)
-        {
-          int immediate = ((insn & 0xfffc) ^ 0x8000) - 0x8000;
-          int absolute = insn & 2;
+	{
+	  int immediate = ((insn & 0xfffc) ^ 0x8000) - 0x8000;
+	  int absolute = insn & 2;
 
-          if (bc_insn_count >= 1)
-            return {}; /* More than one conditional branch found, fallback
-                          to the standard single-step code.  */
+	  if (bc_insn_count >= 1)
+	    return {}; /* More than one conditional branch found, fallback
+			  to the standard single-step code.  */
  
 	  if (absolute)
 	    breaks[1] = immediate;
@@ -1035,10 +1035,10 @@ ppc_deal_with_atomic_sequence (struct regcache *regcache)
 
 	  bc_insn_count++;
 	  last_breakpoint++;
-        }
+	}
 
       if (IS_STORE_CONDITIONAL_INSN (insn))
-        break;
+	break;
     }
 
   /* Assume that the atomic sequence ends with a Store Conditional
@@ -1096,12 +1096,12 @@ store_param_on_stack_p (unsigned long op, int framep, int *r0_contains_arg)
       const int ry_regno = GET_SRC_REG (op);
 
       if (rx_regno == 0 && ry_regno >= 3 && ry_regno <= 10)
-        {
-          *r0_contains_arg = 1;
-          return 1;
-        }
+	{
+	  *r0_contains_arg = 1;
+	  return 1;
+	}
       else
-        return 0;
+	return 0;
     }
 
   /* Save a General Purpose Register on stack.  */
@@ -1114,7 +1114,7 @@ store_param_on_stack_p (unsigned long op, int framep, int *r0_contains_arg)
 
       return (rx_regno >= 3 && rx_regno <= 10);
     }
-           
+	   
   /* Save a General Purpose Register on stack via the Frame Pointer.  */
 
   if (framep &&
@@ -1123,11 +1123,11 @@ store_param_on_stack_p (unsigned long op, int framep, int *r0_contains_arg)
        (op & 0xfc1f0000) == 0xd81f0000))      /* stfd Rx,NUM(r31) */
     {
       /* Rx: Usually, only r3 - r10 are used for parameter passing.
-         However, the compiler sometimes uses r0 to hold an argument.  */
+	 However, the compiler sometimes uses r0 to hold an argument.  */
       const int rx_regno = GET_SRC_REG (op);
 
       return ((rx_regno >= 3 && rx_regno <= 10)
-              || (rx_regno == 0 && *r0_contains_arg));
+	      || (rx_regno == 0 && *r0_contains_arg));
     }
 
   if ((op & 0xfc1f0000) == 0xfc010000)         /* frsp, fp?,NUM(r1) */
@@ -1253,93 +1253,93 @@ rs6000_skip_stack_check (struct gdbarch *gdbarch, const CORE_ADDR start_pc)
   unsigned long op = rs6000_fetch_instruction (gdbarch, pc);
 
   /* First possible sequence: A small number of probes.
-         stw 0, -<some immediate>(1)
-         [repeat this instruction any (small) number of times].  */
+	 stw 0, -<some immediate>(1)
+	 [repeat this instruction any (small) number of times].  */
   
   if ((op & 0xffff0000) == 0x90010000)
     {
       while ((op & 0xffff0000) == 0x90010000)
-        {
-          pc = pc + 4;
-          op = rs6000_fetch_instruction (gdbarch, pc);
-        }
+	{
+	  pc = pc + 4;
+	  op = rs6000_fetch_instruction (gdbarch, pc);
+	}
       return pc;
     }
 
   /* Second sequence: A probing loop.
-         addi 12,1,-<some immediate>
-         lis 0,-<some immediate>
-         [possibly ori 0,0,<some immediate>]
-         add 0,12,0
-         cmpw 0,12,0
-         beq 0,<disp>
-         addi 12,12,-<some immediate>
-         stw 0,0(12)
-         b <disp>
-         [possibly one last probe: stw 0,<some immediate>(12)].  */
+	 addi 12,1,-<some immediate>
+	 lis 0,-<some immediate>
+	 [possibly ori 0,0,<some immediate>]
+	 add 0,12,0
+	 cmpw 0,12,0
+	 beq 0,<disp>
+	 addi 12,12,-<some immediate>
+	 stw 0,0(12)
+	 b <disp>
+	 [possibly one last probe: stw 0,<some immediate>(12)].  */
 
   while (1)
     {
       /* addi 12,1,-<some immediate> */
       if ((op & 0xffff0000) != 0x39810000)
-        break;
+	break;
 
       /* lis 0,-<some immediate> */
       pc = pc + 4;
       op = rs6000_fetch_instruction (gdbarch, pc);
       if ((op & 0xffff0000) != 0x3c000000)
-        break;
+	break;
 
       pc = pc + 4;
       op = rs6000_fetch_instruction (gdbarch, pc);
       /* [possibly ori 0,0,<some immediate>] */
       if ((op & 0xffff0000) == 0x60000000)
-        {
-          pc = pc + 4;
-          op = rs6000_fetch_instruction (gdbarch, pc);
-        }
+	{
+	  pc = pc + 4;
+	  op = rs6000_fetch_instruction (gdbarch, pc);
+	}
       /* add 0,12,0 */
       if (op != 0x7c0c0214)
-        break;
+	break;
 
       /* cmpw 0,12,0 */
       pc = pc + 4;
       op = rs6000_fetch_instruction (gdbarch, pc);
       if (op != 0x7c0c0000)
-        break;
+	break;
 
       /* beq 0,<disp> */
       pc = pc + 4;
       op = rs6000_fetch_instruction (gdbarch, pc);
       if ((op & 0xff9f0001) != 0x41820000)
-        break;
+	break;
 
       /* addi 12,12,-<some immediate> */
       pc = pc + 4;
       op = rs6000_fetch_instruction (gdbarch, pc);
       if ((op & 0xffff0000) != 0x398c0000)
-        break;
+	break;
 
       /* stw 0,0(12) */
       pc = pc + 4;
       op = rs6000_fetch_instruction (gdbarch, pc);
       if (op != 0x900c0000)
-        break;
+	break;
 
       /* b <disp> */
       pc = pc + 4;
       op = rs6000_fetch_instruction (gdbarch, pc);
       if ((op & 0xfc000001) != 0x48000000)
-        break;
+	break;
 
       /* [possibly one last probe: stw 0,<some immediate>(12)].  */
       pc = pc + 4;
       op = rs6000_fetch_instruction (gdbarch, pc);
       if ((op & 0xffff0000) == 0x900c0000)
-        {
-          pc = pc + 4;
-          op = rs6000_fetch_instruction (gdbarch, pc);
-        }
+	{
+	  pc = pc + 4;
+	  op = rs6000_fetch_instruction (gdbarch, pc);
+	}
 
       /* We found a valid stack-check sequence, return the new PC.  */
       return pc;
@@ -1349,54 +1349,54 @@ rs6000_skip_stack_check (struct gdbarch *gdbarch, const CORE_ADDR start_pc)
      limit (saved in a run-time global variable) and the current stack
      pointer:
 
-        addi 0,1,-<some immediate>
-        lis 12,__gnat_stack_limit@ha
-        lwz 12,__gnat_stack_limit@l(12)
-        twllt 0,12
+	addi 0,1,-<some immediate>
+	lis 12,__gnat_stack_limit@ha
+	lwz 12,__gnat_stack_limit@l(12)
+	twllt 0,12
 
      or, with a small variant in the case of a bigger stack frame:
-        addis 0,1,<some immediate>
-        addic 0,0,-<some immediate>
-        lis 12,__gnat_stack_limit@ha
-        lwz 12,__gnat_stack_limit@l(12)
-        twllt 0,12
+	addis 0,1,<some immediate>
+	addic 0,0,-<some immediate>
+	lis 12,__gnat_stack_limit@ha
+	lwz 12,__gnat_stack_limit@l(12)
+	twllt 0,12
   */
   while (1)
     {
       /* addi 0,1,-<some immediate> */
       if ((op & 0xffff0000) != 0x38010000)
-        {
-          /* small stack frame variant not recognized; try the
-             big stack frame variant: */
+	{
+	  /* small stack frame variant not recognized; try the
+	     big stack frame variant: */
 
-          /* addis 0,1,<some immediate> */
-          if ((op & 0xffff0000) != 0x3c010000)
-            break;
+	  /* addis 0,1,<some immediate> */
+	  if ((op & 0xffff0000) != 0x3c010000)
+	    break;
 
-          /* addic 0,0,-<some immediate> */
-          pc = pc + 4;
-          op = rs6000_fetch_instruction (gdbarch, pc);
-          if ((op & 0xffff0000) != 0x30000000)
-            break;
-        }
+	  /* addic 0,0,-<some immediate> */
+	  pc = pc + 4;
+	  op = rs6000_fetch_instruction (gdbarch, pc);
+	  if ((op & 0xffff0000) != 0x30000000)
+	    break;
+	}
 
       /* lis 12,<some immediate> */
       pc = pc + 4;
       op = rs6000_fetch_instruction (gdbarch, pc);
       if ((op & 0xffff0000) != 0x3d800000)
-        break;
+	break;
       
       /* lwz 12,<some immediate>(12) */
       pc = pc + 4;
       op = rs6000_fetch_instruction (gdbarch, pc);
       if ((op & 0xffff0000) != 0x818c0000)
-        break;
+	break;
 
       /* twllt 0,12 */
       pc = pc + 4;
       op = rs6000_fetch_instruction (gdbarch, pc);
       if ((op & 0xfffffffe) != 0x7c406008)
-        break;
+	break;
 
       /* We found a valid stack-check sequence, return the new PC.  */
       return pc;
@@ -1473,7 +1473,7 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
   for (;; pc += 4)
     {
       /* Sometimes it isn't clear if an instruction is a prologue
-         instruction or not.  When we encounter one of these ambiguous
+	 instruction or not.  When we encounter one of these ambiguous
 	 cases, we'll set prev_insn_was_prologue_insn to 0 (false).
 	 Otherwise, we'll assume that it really is a prologue instruction.  */
       if (prev_insn_was_prologue_insn)
@@ -1511,15 +1511,15 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
 	     ones.  */
 	  if (lr_reg == -1)
 	    lr_reg = (op & 0x03e00000) >> 21;
-          if (lr_reg == 0)
-            r0_contains_arg = 0;
+	  if (lr_reg == 0)
+	    r0_contains_arg = 0;
 	  continue;
 	}
       else if ((op & 0xfc1fffff) == 0x7c000026)
 	{			/* mfcr Rx */
 	  cr_reg = (op & 0x03e00000) >> 21;
-          if (cr_reg == 0)
-            r0_contains_arg = 0;
+	  if (cr_reg == 0)
+	    r0_contains_arg = 0;
 	  continue;
 
 	}
@@ -1568,7 +1568,7 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
 	  continue;
 	}
       else if (op == 0x60000000)
-        {
+	{
 	  /* nop */
 	  /* Allow nops in the prologue, but do not consider them to
 	     be part of the prologue unless followed by other prologue
@@ -1581,7 +1581,7 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
 	{			/* addis 0,0,NUM, used for >= 32k frames */
 	  fdata->offset = (op & 0x0000ffff) << 16;
 	  fdata->frameless = 0;
-          r0_contains_arg = 0;
+	  r0_contains_arg = 0;
 	  continue;
 
 	}
@@ -1589,7 +1589,7 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
 	{			/* ori 0,0,NUM, 2nd half of >= 32k frames */
 	  fdata->offset |= (op & 0x0000ffff);
 	  fdata->frameless = 0;
-          r0_contains_arg = 0;
+	  r0_contains_arg = 0;
 	  continue;
 
 	}
@@ -1668,7 +1668,7 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
 
 	  /* If the return address has already been saved, we can skip
 	     calls to blrl (for PIC).  */
-          if (lr_reg != -1 && bl_to_blrl_insn_p (pc, op, byte_order))
+	  if (lr_reg != -1 && bl_to_blrl_insn_p (pc, op, byte_order))
 	    {
 	      fdata->used_bl = 1;
 	      continue;
@@ -1743,12 +1743,12 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
 	  continue;
 
 	  /* move parameters from argument registers to local variable
-             registers */
+	     registers */
  	}
       else if ((op & 0xfc0007fe) == 0x7c000378 &&	/* mr(.)  Rx,Ry */
-               (((op >> 21) & 31) >= 3) &&              /* R3 >= Ry >= R10 */
-               (((op >> 21) & 31) <= 10) &&
-               ((long) ((op >> 16) & 31)
+	       (((op >> 21) & 31) >= 3) &&              /* R3 >= Ry >= R10 */
+	       (((op >> 21) & 31) <= 10) &&
+	       ((long) ((op >> 16) & 31)
 		>= fdata->saved_gpr)) /* Rx: local var reg */
 	{
 	  continue;
@@ -1757,7 +1757,7 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
 	}
       /* Move parameters from argument registers to temporary register.  */
       else if (store_param_on_stack_p (op, framep, &r0_contains_arg))
-        {
+	{
 	  continue;
 
 	  /* Set up frame pointer */
@@ -1802,28 +1802,28 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
 	 mtspr SPR256 Rn == 011111 nnnnn 0000001000 01110100110  */
       else if ((op & 0xfc1fffff) == 0x7c0042a6)    /* mfvrsave Rn */
 	{
-          vrsave_reg = GET_SRC_REG (op);
+	  vrsave_reg = GET_SRC_REG (op);
 	  continue;
 	}
       else if ((op & 0xfc1fffff) == 0x7c0043a6)     /* mtvrsave Rn */
-        {
-          continue;
-        }
+	{
+	  continue;
+	}
       /* Store the register where vrsave was saved to onto the stack:
-         rS is the register where vrsave was stored in a previous
+	 rS is the register where vrsave was stored in a previous
 	 instruction.  */
       /* 100100 sssss 00001 dddddddd dddddddd */
       else if ((op & 0xfc1f0000) == 0x90010000)     /* stw rS, d(r1) */
-        {
-          if (vrsave_reg == GET_SRC_REG (op))
+	{
+	  if (vrsave_reg == GET_SRC_REG (op))
 	    {
 	      fdata->vrsave_offset = SIGNED_SHORT (op) + offset;
 	      vrsave_reg = -1;
 	    }
-          continue;
-        }
+	  continue;
+	}
       /* Compute the new value of vrsave, by modifying the register
-         where vrsave was saved to.  */
+	 where vrsave was saved to.  */
       else if (((op & 0xfc000000) == 0x64000000)    /* oris Ra, Rs, UIMM */
 	       || ((op & 0xfc000000) == 0x60000000))/* ori Ra, Rs, UIMM */
 	{
@@ -1835,22 +1835,22 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
       /* 001110 00000 00000 iiii iiii iiii iiii  */
       /* 001110 01110 00000 iiii iiii iiii iiii  */
       else if ((op & 0xffff0000) == 0x38000000         /* li r0, SIMM */
-               || (op & 0xffff0000) == 0x39c00000)     /* li r14, SIMM */
+	       || (op & 0xffff0000) == 0x39c00000)     /* li r14, SIMM */
 	{
-          if ((op & 0xffff0000) == 0x38000000)
-            r0_contains_arg = 0;
+	  if ((op & 0xffff0000) == 0x38000000)
+	    r0_contains_arg = 0;
 	  li_found_pc = pc;
 	  vr_saved_offset = SIGNED_SHORT (op);
 
-          /* This insn by itself is not part of the prologue, unless
-             if part of the pair of insns mentioned above.  So do not
-             record this insn as part of the prologue yet.  */
-          prev_insn_was_prologue_insn = 0;
+	  /* This insn by itself is not part of the prologue, unless
+	     if part of the pair of insns mentioned above.  So do not
+	     record this insn as part of the prologue yet.  */
+	  prev_insn_was_prologue_insn = 0;
 	}
       /* Store vector register S at (r31+r0) aligned to 16 bytes.  */      
       /* 011111 sssss 11111 00000 00111001110 */
       else if ((op & 0xfc1fffff) == 0x7c1f01ce)   /* stvx Vs, R31, R0 */
-        {
+	{
 	  if (pc == (li_found_pc + 4))
 	    {
 	      vr_reg = GET_SRC_REG (op);
@@ -1871,16 +1871,16 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
 
       /* Start BookE related instructions.  */
       /* Store gen register S at (r31+uimm).
-         Any register less than r13 is volatile, so we don't care.  */
+	 Any register less than r13 is volatile, so we don't care.  */
       /* 000100 sssss 11111 iiiii 01100100001 */
       else if (arch_info->mach == bfd_mach_ppc_e500
 	       && (op & 0xfc1f07ff) == 0x101f0321)    /* evstdd Rs,uimm(R31) */
 	{
-          if ((op & 0x03e00000) >= 0x01a00000)	/* Rs >= r13 */
+	  if ((op & 0x03e00000) >= 0x01a00000)	/* Rs >= r13 */
 	    {
-              unsigned int imm;
+	      unsigned int imm;
 	      ev_reg = GET_SRC_REG (op);
-              imm = (op >> 11) & 0x1f;
+	      imm = (op >> 11) & 0x1f;
 	      ev_offset = imm * 8;
 	      /* If this is the first vector reg to be saved, or if
 		 it has a lower number than others previously seen,
@@ -1891,40 +1891,40 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
 		  fdata->ev_offset = ev_offset + offset;
 		}
 	    }
-          continue;
-        }
+	  continue;
+	}
       /* Store gen register rS at (r1+rB).  */
       /* 000100 sssss 00001 bbbbb 01100100000 */
       else if (arch_info->mach == bfd_mach_ppc_e500
 	       && (op & 0xffe007ff) == 0x13e00320)     /* evstddx RS,R1,Rb */
 	{
-          if (pc == (li_found_pc + 4))
-            {
-              ev_reg = GET_SRC_REG (op);
+	  if (pc == (li_found_pc + 4))
+	    {
+	      ev_reg = GET_SRC_REG (op);
 	      /* If this is the first vector reg to be saved, or if
-                 it has a lower number than others previously seen,
-                 reupdate the frame info.  */
-              /* We know the contents of rB from the previous instruction.  */
+		 it has a lower number than others previously seen,
+		 reupdate the frame info.  */
+	      /* We know the contents of rB from the previous instruction.  */
 	      if (fdata->saved_ev == -1 || fdata->saved_ev > ev_reg)
 		{
-                  fdata->saved_ev = ev_reg;
-                  fdata->ev_offset = vr_saved_offset + offset;
+		  fdata->saved_ev = ev_reg;
+		  fdata->ev_offset = vr_saved_offset + offset;
 		}
 	      vr_saved_offset = -1;
 	      ev_reg = -1;
 	      li_found_pc = 0;
-            }
-          continue;
-        }
+	    }
+	  continue;
+	}
       /* Store gen register r31 at (rA+uimm).  */
       /* 000100 11111 aaaaa iiiii 01100100001 */
       else if (arch_info->mach == bfd_mach_ppc_e500
 	       && (op & 0xffe007ff) == 0x13e00321)   /* evstdd R31,Ra,UIMM */
-        {
-          /* Wwe know that the source register is 31 already, but
-             it can't hurt to compute it.  */
+	{
+	  /* Wwe know that the source register is 31 already, but
+	     it can't hurt to compute it.  */
 	  ev_reg = GET_SRC_REG (op);
-          ev_offset = ((op >> 11) & 0x1f) * 8;
+	  ev_offset = ((op >> 11) & 0x1f) * 8;
 	  /* If this is the first vector reg to be saved, or if
 	     it has a lower number than others previously seen,
 	     reupdate the frame info.  */
@@ -1937,21 +1937,21 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
 	  continue;
       	}
       /* Store gen register S at (r31+r0).
-         Store param on stack when offset from SP bigger than 4 bytes.  */
+	 Store param on stack when offset from SP bigger than 4 bytes.  */
       /* 000100 sssss 11111 00000 01100100000 */
       else if (arch_info->mach == bfd_mach_ppc_e500
 	       && (op & 0xfc1fffff) == 0x101f0320)     /* evstddx Rs,R31,R0 */
 	{
-          if (pc == (li_found_pc + 4))
-            {
-              if ((op & 0x03e00000) >= 0x01a00000)
+	  if (pc == (li_found_pc + 4))
+	    {
+	      if ((op & 0x03e00000) >= 0x01a00000)
 		{
 		  ev_reg = GET_SRC_REG (op);
 		  /* If this is the first vector reg to be saved, or if
 		     it has a lower number than others previously seen,
 		     reupdate the frame info.  */
-                  /* We know the contents of r0 from the previous
-                     instruction.  */
+		  /* We know the contents of r0 from the previous
+		     instruction.  */
 		  if (fdata->saved_ev == -1 || fdata->saved_ev > ev_reg)
 		    {
 		      fdata->saved_ev = ev_reg;
@@ -1962,7 +1962,7 @@ skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, CORE_ADDR lim_pc,
 	      vr_saved_offset = -1;
 	      li_found_pc = 0;
 	      continue;
-            }
+	    }
 	}
       /* End BookE related instructions.  */
 
@@ -2101,10 +2101,10 @@ rs6000_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR pc)
       struct bound_minimal_symbol s = lookup_minimal_symbol_by_pc (call_dest);
 
       /* We check for ___eabi (three leading underscores) in addition
-         to __eabi in case the GCC option "-fleading-underscore" was
+	 to __eabi in case the GCC option "-fleading-underscore" was
 	 used to compile the program.  */
       if (s.minsym != NULL
-          && s.minsym->linkage_name () != NULL
+	  && s.minsym->linkage_name () != NULL
 	  && (strcmp (s.minsym->linkage_name (), "__eabi") == 0
 	      || strcmp (s.minsym->linkage_name (), "___eabi") == 0))
 	pc += 4;
@@ -2522,9 +2522,9 @@ rs6000_convert_register_p (struct gdbarch *gdbarch, int regnum,
 
 static int
 rs6000_register_to_value (struct frame_info *frame,
-                          int regnum,
-                          struct type *type,
-                          gdb_byte *to,
+			  int regnum,
+			  struct type *type,
+			  gdb_byte *to,
 			  int *optimizedp, int *unavailablep)
 {
   struct gdbarch *gdbarch = get_frame_arch (frame);
@@ -2545,9 +2545,9 @@ rs6000_register_to_value (struct frame_info *frame,
 
 static void
 rs6000_value_to_register (struct frame_info *frame,
-                          int regnum,
-                          struct type *type,
-                          const gdb_byte *from)
+			  int regnum,
+			  struct type *type,
+			  const gdb_byte *from)
 {
   struct gdbarch *gdbarch = get_frame_arch (frame);
   gdb_byte to[PPC_MAX_REGISTER_SIZE];
@@ -3166,23 +3166,23 @@ rs6000_stab_reg_to_regnum (struct gdbarch *gdbarch, int num)
     switch (num)
       {
       case 64: 
-        return tdep->ppc_mq_regnum;
+	return tdep->ppc_mq_regnum;
       case 65:
-        return tdep->ppc_lr_regnum;
+	return tdep->ppc_lr_regnum;
       case 66: 
-        return tdep->ppc_ctr_regnum;
+	return tdep->ppc_ctr_regnum;
       case 76: 
-        return tdep->ppc_xer_regnum;
+	return tdep->ppc_xer_regnum;
       case 109:
-        return tdep->ppc_vrsave_regnum;
+	return tdep->ppc_vrsave_regnum;
       case 110:
-        return tdep->ppc_vrsave_regnum - 1; /* vscr */
+	return tdep->ppc_vrsave_regnum - 1; /* vscr */
       case 111:
-        return tdep->ppc_acc_regnum;
+	return tdep->ppc_acc_regnum;
       case 112:
-        return tdep->ppc_spefscr_regnum;
+	return tdep->ppc_spefscr_regnum;
       default: 
-        return num;
+	return num;
       }
 }
 
@@ -3210,21 +3210,21 @@ rs6000_dwarf2_reg_to_regnum (struct gdbarch *gdbarch, int num)
       case 64:
 	return tdep->ppc_cr_regnum;
       case 67:
-        return tdep->ppc_vrsave_regnum - 1; /* vscr */
+	return tdep->ppc_vrsave_regnum - 1; /* vscr */
       case 99:
-        return tdep->ppc_acc_regnum;
+	return tdep->ppc_acc_regnum;
       case 100:
-        return tdep->ppc_mq_regnum;
+	return tdep->ppc_mq_regnum;
       case 101:
-        return tdep->ppc_xer_regnum;
+	return tdep->ppc_xer_regnum;
       case 108:
-        return tdep->ppc_lr_regnum;
+	return tdep->ppc_lr_regnum;
       case 109:
-        return tdep->ppc_ctr_regnum;
+	return tdep->ppc_ctr_regnum;
       case 356:
-        return tdep->ppc_vrsave_regnum;
+	return tdep->ppc_vrsave_regnum;
       case 612:
-        return tdep->ppc_spefscr_regnum;
+	return tdep->ppc_spefscr_regnum;
       }
 
   /* Unknown DWARF register number.  */
@@ -3485,7 +3485,7 @@ rs6000_frame_cache (struct frame_info *this_frame, void **this_cache)
 
       if (safe_read_memory_unsigned_integer (cache->base, wordsize,
 					     byte_order, &backchain))
-        cache->base = (CORE_ADDR) backchain;
+	cache->base = (CORE_ADDR) backchain;
     }
 
   trad_frame_set_value (cache->saved_regs,
@@ -3500,15 +3500,15 @@ rs6000_frame_cache (struct frame_info *this_frame, void **this_cache)
       CORE_ADDR fpr_addr = cache->base + fdata.fpr_offset;
 
       /* If skip_prologue says floating-point registers were saved,
-         but the current architecture has no floating-point registers,
-         then that's strange.  But we have no indices to even record
-         the addresses under, so we just ignore it.  */
+	 but the current architecture has no floating-point registers,
+	 then that's strange.  But we have no indices to even record
+	 the addresses under, so we just ignore it.  */
       if (ppc_floating_point_unit_p (gdbarch))
-        for (i = fdata.saved_fpr; i < ppc_num_fprs; i++)
-          {
-            cache->saved_regs[tdep->ppc_fp0_regnum + i].addr = fpr_addr;
-            fpr_addr += 8;
-          }
+	for (i = fdata.saved_fpr; i < ppc_num_fprs; i++)
+	  {
+	    cache->saved_regs[tdep->ppc_fp0_regnum + i].addr = fpr_addr;
+	    fpr_addr += 8;
+	  }
     }
 
   /* if != -1, fdata.saved_gpr is the smallest number of saved_gpr.
@@ -5416,7 +5416,7 @@ ppc_process_record_op60 (struct gdbarch *gdbarch, struct regcache *regcache,
 	{
 	case 0:		/* VSX Scalar Extract Exponent Double-Precision */
 	case 1:		/* VSX Scalar Extract Significand Double-Precision */
-          record_full_arch_list_add_reg (regcache,
+	  record_full_arch_list_add_reg (regcache,
 					 tdep->ppc_gp0_regnum + PPC_RT (insn));
 	  return 0;
 	case 16:	/* VSX Scalar Convert Half-Precision format to
@@ -5673,7 +5673,7 @@ ppc_process_record_op63 (struct gdbarch *gdbarch, struct regcache *regcache,
 
     case 583:
       switch (PPC_FIELD (insn, 11, 5))
-        {
+	{
 	  case 1:	/* Move From FPSCR & Clear Enables */
 	  case 20:	/* Move From FPSCR Control & set DRN */
 	  case 21:	/* Move From FPSCR Control & set DRN Immediate */
@@ -5689,7 +5689,7 @@ ppc_process_record_op63 (struct gdbarch *gdbarch, struct regcache *regcache,
 					   tdep->ppc_fp0_regnum
 					   + PPC_FRT (insn));
 	    return 0;
-        }
+	}
       break;
 
     case 8:		/* Floating Copy Sign */
@@ -6003,7 +6003,7 @@ ppc_process_record (struct gdbarch *gdbarch, struct regcache *regcache,
 
     case 57:
       switch (insn & 0x3)
-        {
+	{
 	case 0:		/* Load Floating-Point Double Pair */
 	  tmp = tdep->ppc_fp0_regnum + (PPC_RT (insn) & ~1);
 	  record_full_arch_list_add_reg (regcache, tmp);
@@ -6745,9 +6745,9 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   if (elf_abi == POWERPC_ELF_AUTO)
     {
       if (wordsize == 8 && info.byte_order == BFD_ENDIAN_LITTLE)
-        elf_abi = POWERPC_ELF_V2;
+	elf_abi = POWERPC_ELF_V2;
       else
-        elf_abi = POWERPC_ELF_V1;
+	elf_abi = POWERPC_ELF_V1;
     }
 
   if (soft_float_flag == AUTO_BOOLEAN_TRUE)
@@ -6789,8 +6789,8 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
        arches = gdbarch_list_lookup_by_info (arches->next, &info))
     {
       /* Word size in the various PowerPC bfd_arch_info structs isn't
-         meaningful, because 64-bit CPUs can run in 32-bit mode.  So, perform
-         separate word size check.  */
+	 meaningful, because 64-bit CPUs can run in 32-bit mode.  So, perform
+	 separate word size check.  */
       tdep = gdbarch_tdep (arches->gdbarch);
       if (tdep && tdep->elf_abi != elf_abi)
 	continue;