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push error handlers out of line in the vm

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* libguile/vm.c:
  (vm_error):
  (vm_error_bad_instruction):
  (vm_error_unbound):
  (vm_error_unbound_fluid):
  (vm_error_not_a_variable):
  (vm_error_not_a_thunk):
  (vm_error_apply_to_non_list):
  (vm_error_kwargs_length_not_even):
  (vm_error_kwargs_invalid_keyword):
  (vm_error_kwargs_unrecognized_keyword):
  (vm_error_too_many_args):
  (vm_error_wrong_num_args):
  (vm_error_wrong_type_apply):
  (vm_error_stack_overflow):
  (vm_error_stack_underflow):
  (vm_error_improper_list):
  (vm_error_not_a_pair):
  (vm_error_not_a_bytevector):
  (vm_error_not_a_struct):
  (vm_error_no_values):
  (vm_error_not_enough_values):
  (vm_error_continuation_not_rewindable):
  (vm_error_bad_wide_string_length):
  (vm_error_invalid_address):
  (vm_error_object):
  (vm_error_free_variable): New internal helpers, implementing VM error
  handling.

* libguile/vm-engine.h (VM_ASSERT): New helper macro.
  (ASSERT, CHECK_OBJECT, CHECK_FREE_VARIABLE):
  (PRE_CHECK_UNDERFLOW, PUSH_LIST): Use the new helper.

* libguile/vm-i-loader.c:
* libguile/vm-i-scheme.c:
* libguile/vm-i-system.c: Use VM_ASSERT and the out-of-line error
  handlers.

* libguile/vm-engine.c (vm_engine): Remove inline error handlers, and
  remove a couple of local vars.  Use VM_ASSERT.  Have halt handle the
  return itself.
This commit is contained in:
Andy Wingo 2012-04-30 20:25:53 +02:00
parent 7dbc03498a
commit 53bdfcf034
6 changed files with 332 additions and 320 deletions
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9
libguile/vm-i-loader.c
View file

@ -1,4 +1,4 @@
/* Copyright (C) 2001,2008,2009,2010,2011 Free Software Foundation, Inc.
/* Copyright (C) 2001,2008,2009,2010,2011,2012 Free Software Foundation, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public License
@ -105,11 +105,8 @@ VM_DEFINE_LOADER (107, load_wide_string, "load-wide-string")
scm_t_wchar *wbuf;
FETCH_LENGTH (len);
if (SCM_UNLIKELY (len % 4))
{
finish_args = scm_list_1 (scm_from_size_t (len));
goto vm_error_bad_wide_string_length;
}
VM_ASSERT ((len % 4) == 0,
vm_error_bad_wide_string_length (len));
SYNC_REGISTER ();
PUSH (scm_i_make_wide_string (len / 4, &wbuf, 1));