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, 12 insertions, 18 deletions

diff --git a/gdb/gdbserver/server.c b/gdb/gdbserver/server.c
index 0f4341c..99ce21e 100644
--- a/gdb/gdbserver/server.c
+++ b/gdb/gdbserver/server.c
@@ -459,7 +459,7 @@ handle_btrace_general_set (char *own_buf)
       return -1;
     }
 
-  TRY
+  try
     {
       if (strcmp (op, "bts") == 0)
 	handle_btrace_enable_bts (thread);
@@ -472,11 +472,10 @@ handle_btrace_general_set (char *own_buf)
 
       write_ok (own_buf);
     }
-  CATCH (exception, RETURN_MASK_ERROR)
+  catch (const gdb_exception_RETURN_MASK_ERROR &exception)
     {
       sprintf (own_buf, "E.%s", exception.what ());
     }
-  END_CATCH
 
   return 1;
 }
@@ -1876,18 +1875,17 @@ handle_qxfer_btrace (const char *annex,
     {
       buffer_free (&cache);
 
-      TRY
+      try
 	{
 	  result = target_read_btrace (thread->btrace, &cache, type);
 	  if (result != 0)
 	    memcpy (cs.own_buf, cache.buffer, cache.used_size);
 	}
-      CATCH (exception, RETURN_MASK_ERROR)
+      catch (const gdb_exception_RETURN_MASK_ERROR &exception)
 	{
 	  sprintf (cs.own_buf, "E.%s", exception.what ());
 	  result = -1;
 	}
-      END_CATCH
 
       if (result != 0)
 	return -3;
@@ -1948,18 +1946,17 @@ handle_qxfer_btrace_conf (const char *annex,
     {
       buffer_free (&cache);
 
-      TRY
+      try
 	{
 	  result = target_read_btrace_conf (thread->btrace, &cache);
 	  if (result != 0)
 	    memcpy (cs.own_buf, cache.buffer, cache.used_size);
 	}
-      CATCH (exception, RETURN_MASK_ERROR)
+      catch (const gdb_exception_RETURN_MASK_ERROR &exception)
 	{
 	  sprintf (cs.own_buf, "E.%s", exception.what ());
 	  result = -1;
 	}
-      END_CATCH
 
       if (result != 0)
 	return -3;
@@ -3552,18 +3549,17 @@ static int exit_code;
 static void
 detach_or_kill_for_exit_cleanup ()
 {
-  TRY
+  try
     {
       detach_or_kill_for_exit ();
     }
-  CATCH (exception, RETURN_MASK_ALL)
+  catch (const gdb_exception_RETURN_MASK_ALL &exception)
     {
       fflush (stdout);
       fprintf (stderr, "Detach or kill failed: %s\n",
 	       exception.what ());
       exit_code = 1;
     }
-  END_CATCH
 }
 
 /* Main function.  This is called by the real "main" function,
@@ -3866,7 +3862,7 @@ captured_main (int argc, char *argv[])
 
       remote_open (port);
 
-      TRY
+      try
 	{
 	  /* Wait for events.  This will return when all event sources
 	     are removed from the event loop.  */
@@ -3931,7 +3927,7 @@ captured_main (int argc, char *argv[])
 		}
 	    }
 	}
-      CATCH (exception, RETURN_MASK_ERROR)
+      catch (const gdb_exception_RETURN_MASK_ERROR &exception)
 	{
 	  fflush (stdout);
 	  fprintf (stderr, "gdbserver: %s\n", exception.what ());
@@ -3945,7 +3941,6 @@ captured_main (int argc, char *argv[])
 	  if (run_once)
 	    throw_quit ("Quit");
 	}
-      END_CATCH
     }
 }
 
@@ -3955,11 +3950,11 @@ int
 main (int argc, char *argv[])
 {
 
-  TRY
+  try
     {
       captured_main (argc, argv);
     }
-  CATCH (exception, RETURN_MASK_ALL)
+  catch (const gdb_exception_RETURN_MASK_ALL &exception)
     {
       if (exception.reason == RETURN_ERROR)
 	{
@@ -3971,7 +3966,6 @@ main (int argc, char *argv[])
 
       exit (exit_code);
     }
-  END_CATCH
 
   gdb_assert_not_reached ("captured_main should never return");
 }