Rewrite TRY/CATCH

This rewrites gdb's TRY/CATCH to plain C++ try/catch.  The patch was
largely written by script, though one change (to a comment in
common-exceptions.h) was reverted by hand.

gdb/ChangeLog
2019-04-08  Tom Tromey  <tom@tromey.com>

	* xml-support.c: Use C++ exception handling.
	* x86-linux-nat.c: Use C++ exception handling.
	* windows-nat.c: Use C++ exception handling.
	* varobj.c: Use C++ exception handling.
	* value.c: Use C++ exception handling.
	* valprint.c: Use C++ exception handling.
	* valops.c: Use C++ exception handling.
	* unittests/parse-connection-spec-selftests.c: Use C++ exception
	handling.
	* unittests/cli-utils-selftests.c: Use C++ exception handling.
	* typeprint.c: Use C++ exception handling.
	* tui/tui.c: Use C++ exception handling.
	* tracefile-tfile.c: Use C++ exception handling.
	* top.c: Use C++ exception handling.
	* thread.c: Use C++ exception handling.
	* target.c: Use C++ exception handling.
	* symmisc.c: Use C++ exception handling.
	* symfile-mem.c: Use C++ exception handling.
	* stack.c: Use C++ exception handling.
	* sparc64-linux-tdep.c: Use C++ exception handling.
	* solib.c: Use C++ exception handling.
	* solib-svr4.c: Use C++ exception handling.
	* solib-spu.c: Use C++ exception handling.
	* solib-frv.c: Use C++ exception handling.
	* solib-dsbt.c: Use C++ exception handling.
	* selftest-arch.c: Use C++ exception handling.
	* s390-tdep.c: Use C++ exception handling.
	* rust-lang.c: Use C++ exception handling.
	* rust-exp.y: Use C++ exception handling.
	* rs6000-tdep.c: Use C++ exception handling.
	* rs6000-aix-tdep.c: Use C++ exception handling.
	* riscv-tdep.c: Use C++ exception handling.
	* remote.c: Use C++ exception handling.
	* remote-fileio.c: Use C++ exception handling.
	* record-full.c: Use C++ exception handling.
	* record-btrace.c: Use C++ exception handling.
	* python/python.c: Use C++ exception handling.
	* python/py-value.c: Use C++ exception handling.
	* python/py-utils.c: Use C++ exception handling.
	* python/py-unwind.c: Use C++ exception handling.
	* python/py-type.c: Use C++ exception handling.
	* python/py-symbol.c: Use C++ exception handling.
	* python/py-record.c: Use C++ exception handling.
	* python/py-record-btrace.c: Use C++ exception handling.
	* python/py-progspace.c: Use C++ exception handling.
	* python/py-prettyprint.c: Use C++ exception handling.
	* python/py-param.c: Use C++ exception handling.
	* python/py-objfile.c: Use C++ exception handling.
	* python/py-linetable.c: Use C++ exception handling.
	* python/py-lazy-string.c: Use C++ exception handling.
	* python/py-infthread.c: Use C++ exception handling.
	* python/py-inferior.c: Use C++ exception handling.
	* python/py-gdb-readline.c: Use C++ exception handling.
	* python/py-framefilter.c: Use C++ exception handling.
	* python/py-frame.c: Use C++ exception handling.
	* python/py-finishbreakpoint.c: Use C++ exception handling.
	* python/py-cmd.c: Use C++ exception handling.
	* python/py-breakpoint.c: Use C++ exception handling.
	* python/py-arch.c: Use C++ exception handling.
	* printcmd.c: Use C++ exception handling.
	* ppc-linux-tdep.c: Use C++ exception handling.
	* parse.c: Use C++ exception handling.
	* p-valprint.c: Use C++ exception handling.
	* objc-lang.c: Use C++ exception handling.
	* mi/mi-main.c: Use C++ exception handling.
	* mi/mi-interp.c: Use C++ exception handling.
	* mi/mi-cmd-stack.c: Use C++ exception handling.
	* mi/mi-cmd-break.c: Use C++ exception handling.
	* main.c: Use C++ exception handling.
	* linux-thread-db.c: Use C++ exception handling.
	* linux-tdep.c: Use C++ exception handling.
	* linux-nat.c: Use C++ exception handling.
	* linux-fork.c: Use C++ exception handling.
	* linespec.c: Use C++ exception handling.
	* language.c: Use C++ exception handling.
	* jit.c: Use C++ exception handling.
	* infrun.c: Use C++ exception handling.
	* infcmd.c: Use C++ exception handling.
	* infcall.c: Use C++ exception handling.
	* inf-loop.c: Use C++ exception handling.
	* i386-tdep.c: Use C++ exception handling.
	* i386-linux-tdep.c: Use C++ exception handling.
	* guile/scm-value.c: Use C++ exception handling.
	* guile/scm-type.c: Use C++ exception handling.
	* guile/scm-symtab.c: Use C++ exception handling.
	* guile/scm-symbol.c: Use C++ exception handling.
	* guile/scm-pretty-print.c: Use C++ exception handling.
	* guile/scm-ports.c: Use C++ exception handling.
	* guile/scm-param.c: Use C++ exception handling.
	* guile/scm-math.c: Use C++ exception handling.
	* guile/scm-lazy-string.c: Use C++ exception handling.
	* guile/scm-frame.c: Use C++ exception handling.
	* guile/scm-disasm.c: Use C++ exception handling.
	* guile/scm-cmd.c: Use C++ exception handling.
	* guile/scm-breakpoint.c: Use C++ exception handling.
	* guile/scm-block.c: Use C++ exception handling.
	* guile/guile-internal.h: Use C++ exception handling.
	* gnu-v3-abi.c: Use C++ exception handling.
	* gdbtypes.c: Use C++ exception handling.
	* frame.c: Use C++ exception handling.
	* frame-unwind.c: Use C++ exception handling.
	* fbsd-tdep.c: Use C++ exception handling.
	* f-valprint.c: Use C++ exception handling.
	* exec.c: Use C++ exception handling.
	* event-top.c: Use C++ exception handling.
	* event-loop.c: Use C++ exception handling.
	* eval.c: Use C++ exception handling.
	* dwarf2read.c: Use C++ exception handling.
	* dwarf2loc.c: Use C++ exception handling.
	* dwarf2-frame.c: Use C++ exception handling.
	* dwarf2-frame-tailcall.c: Use C++ exception handling.
	* dwarf-index-write.c: Use C++ exception handling.
	* dwarf-index-cache.c: Use C++ exception handling.
	* dtrace-probe.c: Use C++ exception handling.
	* disasm-selftests.c: Use C++ exception handling.
	* darwin-nat.c: Use C++ exception handling.
	* cp-valprint.c: Use C++ exception handling.
	* cp-support.c: Use C++ exception handling.
	* cp-abi.c: Use C++ exception handling.
	* corelow.c: Use C++ exception handling.
	* completer.c: Use C++ exception handling.
	* compile/compile-object-run.c: Use C++ exception handling.
	* compile/compile-object-load.c: Use C++ exception handling.
	* compile/compile-cplus-symbols.c: Use C++ exception handling.
	* compile/compile-c-symbols.c: Use C++ exception handling.
	* common/selftest.c: Use C++ exception handling.
	* common/new-op.c: Use C++ exception handling.
	* cli/cli-script.c: Use C++ exception handling.
	* cli/cli-interp.c: Use C++ exception handling.
	* cli/cli-cmds.c: Use C++ exception handling.
	* c-varobj.c: Use C++ exception handling.
	* btrace.c: Use C++ exception handling.
	* breakpoint.c: Use C++ exception handling.
	* break-catch-throw.c: Use C++ exception handling.
	* arch-utils.c: Use C++ exception handling.
	* amd64-tdep.c: Use C++ exception handling.
	* ada-valprint.c: Use C++ exception handling.
	* ada-typeprint.c: Use C++ exception handling.
	* ada-lang.c: Use C++ exception handling.
	* aarch64-tdep.c: Use C++ exception handling.

gdb/gdbserver/ChangeLog
2019-04-08  Tom Tromey  <tom@tromey.com>

	* server.c: Use C++ exception handling.
	* linux-low.c: Use C++ exception handling.
	* gdbreplay.c: Use C++ exception handling.

1 files changed, 16 insertions, 24 deletions

diff --git a/gdb/guile/scm-breakpoint.c b/gdb/guile/scm-breakpoint.c
index d052748..356abca 100644
--- a/gdb/guile/scm-breakpoint.c
+++ b/gdb/guile/scm-breakpoint.c
@@ -429,7 +429,7 @@ gdbscm_register_breakpoint_x (SCM self)
 				      current_language,
 				      symbol_name_match_type::WILD);
 
-  TRY
+  try
     {
       int internal = bp_smob->spec.is_internal;
 
@@ -465,11 +465,10 @@ gdbscm_register_breakpoint_x (SCM self)
 	  gdb_assert_not_reached ("invalid breakpoint type");
 	}
     }
-  CATCH (ex, RETURN_MASK_ALL)
+  catch (const gdb_exception_RETURN_MASK_ALL &ex)
     {
       except = ex;
     }
-  END_CATCH
 
   /* Ensure this gets reset, even if there's an error.  */
   pending_breakpoint_scm = SCM_BOOL_F;
@@ -490,15 +489,14 @@ gdbscm_delete_breakpoint_x (SCM self)
   breakpoint_smob *bp_smob
     = bpscm_get_valid_breakpoint_smob_arg_unsafe (self, SCM_ARG1, FUNC_NAME);
 
-  TRY
+  try
     {
       delete_breakpoint (bp_smob->bp);
     }
-  CATCH (except, RETURN_MASK_ALL)
+  catch (const gdb_exception_RETURN_MASK_ALL &except)
     {
       GDBSCM_HANDLE_GDB_EXCEPTION (except);
     }
-  END_CATCH
 
   return SCM_UNSPECIFIED;
 }
@@ -588,18 +586,17 @@ gdbscm_set_breakpoint_enabled_x (SCM self, SCM newvalue)
   SCM_ASSERT_TYPE (gdbscm_is_bool (newvalue), newvalue, SCM_ARG2, FUNC_NAME,
 		   _("boolean"));
 
-  TRY
+  try
     {
       if (gdbscm_is_true (newvalue))
 	enable_breakpoint (bp_smob->bp);
       else
 	disable_breakpoint (bp_smob->bp);
     }
-  CATCH (except, RETURN_MASK_ALL)
+  catch (const gdb_exception_RETURN_MASK_ALL &except)
     {
       GDBSCM_HANDLE_GDB_EXCEPTION (except);
     }
-  END_CATCH
 
   return SCM_UNSPECIFIED;
 }
@@ -626,15 +623,14 @@ gdbscm_set_breakpoint_silent_x (SCM self, SCM newvalue)
   SCM_ASSERT_TYPE (gdbscm_is_bool (newvalue), newvalue, SCM_ARG2, FUNC_NAME,
 		   _("boolean"));
 
-  TRY
+  try
     {
       breakpoint_set_silent (bp_smob->bp, gdbscm_is_true (newvalue));
     }
-  CATCH (except, RETURN_MASK_ALL)
+  catch (const gdb_exception_RETURN_MASK_ALL &except)
     {
       GDBSCM_HANDLE_GDB_EXCEPTION (except);
     }
-  END_CATCH
 
   return SCM_UNSPECIFIED;
 }
@@ -667,15 +663,14 @@ gdbscm_set_breakpoint_ignore_count_x (SCM self, SCM newvalue)
   if (value < 0)
     value = 0;
 
-  TRY
+  try
     {
       set_ignore_count (bp_smob->number, (int) value, 0);
     }
-  CATCH (except, RETURN_MASK_ALL)
+  catch (const gdb_exception_RETURN_MASK_ALL &except)
     {
       GDBSCM_HANDLE_GDB_EXCEPTION (except);
     }
-  END_CATCH
 
   return SCM_UNSPECIFIED;
 }
@@ -788,15 +783,14 @@ gdbscm_set_breakpoint_task_x (SCM self, SCM newvalue)
     {
       id = scm_to_long (newvalue);
 
-      TRY
+      try
 	{
 	  valid_id = valid_task_id (id);
 	}
-      CATCH (except, RETURN_MASK_ALL)
+      catch (const gdb_exception_RETURN_MASK_ALL &except)
 	{
 	  GDBSCM_HANDLE_GDB_EXCEPTION (except);
 	}
-      END_CATCH
 
       if (! valid_id)
 	{
@@ -809,15 +803,14 @@ gdbscm_set_breakpoint_task_x (SCM self, SCM newvalue)
   else
     SCM_ASSERT_TYPE (0, newvalue, SCM_ARG2, FUNC_NAME, _("integer or #f"));
 
-  TRY
+  try
     {
       breakpoint_set_task (bp_smob->bp, id);
     }
-  CATCH (except, RETURN_MASK_ALL)
+  catch (const gdb_exception_RETURN_MASK_ALL &except)
     {
       GDBSCM_HANDLE_GDB_EXCEPTION (except);
     }
-  END_CATCH
 
   return SCM_UNSPECIFIED;
 }
@@ -975,16 +968,15 @@ gdbscm_breakpoint_commands (SCM self)
   string_file buf;
 
   current_uiout->redirect (&buf);
-  TRY
+  try
     {
       print_command_lines (current_uiout, breakpoint_commands (bp), 0);
     }
-  CATCH (except, RETURN_MASK_ALL)
+  catch (const gdb_exception_RETURN_MASK_ALL &except)
     {
       current_uiout->redirect (NULL);
       gdbscm_throw_gdb_exception (except);
     }
-  END_CATCH
 
   current_uiout->redirect (NULL);
   result = gdbscm_scm_from_c_string (buf.c_str ());