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authorUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
committerUlrich Drepper <drepper@redhat.com>2004-12-22 20:10:10 +0000
commita334319f6530564d22e775935d9c91663623a1b4 (patch)
treeb5877475619e4c938e98757d518bb1e9cbead751 /iconv/skeleton.c
parent0ecb606cb6cf65de1d9fc8a919bceb4be476c602 (diff)
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(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.
Diffstat (limited to 'iconv/skeleton.c')
-rw-r--r--iconv/skeleton.c45
1 files changed, 23 insertions, 22 deletions
diff --git a/iconv/skeleton.c b/iconv/skeleton.c
index baace6b..579426c 100644
--- a/iconv/skeleton.c
+++ b/iconv/skeleton.c
@@ -1,5 +1,5 @@
/* Skeleton for a conversion module.
- Copyright (C) 1998-2002, 2005 Free Software Foundation, Inc.
+ Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
@@ -58,6 +58,13 @@
of one round through the TO_LOOP. Defaults
to MIN_NEEDED_FROM and MAX_NEEDED_FROM, respectively.
+ DEFINE_DIRECTION_OBJECTS
+ two objects will be defined to be used when the
+ `gconv' function must only distinguish two
+ directions. This is implied by DEFINE_INIT.
+ If this macro is not defined the following
+ macro must be available.
+
FROM_DIRECTION this macro is supposed to return a value != 0
if we convert from the current character set,
otherwise it return 0.
@@ -144,22 +151,21 @@
# include <dlfcn.h>
#endif
-#include <sysdep.h>
-
#ifndef DL_CALL_FCT
# define DL_CALL_FCT(fct, args) fct args
#endif
/* The direction objects. */
-#if DEFINE_INIT
+#if DEFINE_DIRECTION_OBJECTS || DEFINE_INIT
+static int from_object;
+static int to_object;
+
# ifndef FROM_DIRECTION
-# define FROM_DIRECTION_VAL NULL
-# define TO_DIRECTION_VAL ((void *) ~((uintptr_t) 0))
-# define FROM_DIRECTION (step->__data == FROM_DIRECTION_VAL)
+# define FROM_DIRECTION (step->__data == &from_object)
# endif
#else
# ifndef FROM_DIRECTION
-# error "FROM_DIRECTION must be provided if non-default init is used"
+# error "FROM_DIRECTION must be provided if direction objects are not used"
# endif
#endif
@@ -323,7 +329,7 @@ gconv_init (struct __gconv_step *step)
/* Determine which direction. */
if (strcmp (step->__from_name, CHARSET_NAME) == 0)
{
- step->__data = FROM_DIRECTION_VAL;
+ step->__data = &from_object;
step->__min_needed_from = FROM_LOOP_MIN_NEEDED_FROM;
step->__max_needed_from = FROM_LOOP_MAX_NEEDED_FROM;
@@ -336,7 +342,7 @@ gconv_init (struct __gconv_step *step)
}
else if (__builtin_expect (strcmp (step->__to_name, CHARSET_NAME), 0) == 0)
{
- step->__data = TO_DIRECTION_VAL;
+ step->__data = &to_object;
step->__min_needed_from = TO_LOOP_MIN_NEEDED_FROM;
step->__max_needed_from = TO_LOOP_MAX_NEEDED_FROM;
@@ -395,17 +401,10 @@ FUNCTION_NAME (struct __gconv_step *step, struct __gconv_step_data *data,
{
struct __gconv_step *next_step = step + 1;
struct __gconv_step_data *next_data = data + 1;
- __gconv_fct fct = NULL;
+ __gconv_fct fct;
int status;
- if ((data->__flags & __GCONV_IS_LAST) == 0)
- {
- fct = next_step->__fct;
-#ifdef PTR_DEMANGLE
- if (next_step->__shlib_handle != NULL)
- PTR_DEMANGLE (fct);
-#endif
- }
+ fct = (data->__flags & __GCONV_IS_LAST) ? NULL : next_step->__fct;
/* If the function is called with no input this means we have to reset
to the initial state. The possibly partly converted input is
@@ -682,8 +681,8 @@ FUNCTION_NAME (struct __gconv_step *step, struct __gconv_step_data *data,
#ifdef RESET_INPUT_BUFFER
RESET_INPUT_BUFFER;
#else
- /* We have a problem in one of the functions below.
- Undo the conversion upto the error point. */
+ /* We have a problem with the in on of the functions
+ below. Undo the conversion upto the error point. */
size_t nstatus;
/* Reload the pointers. */
@@ -781,11 +780,12 @@ FUNCTION_NAME (struct __gconv_step *step, struct __gconv_step_data *data,
STORE_REST
# else
+ size_t cnt;
+
/* Make sure the remaining bytes fit into the state objects
buffer. */
assert (inend - *inptrp < 4);
- size_t cnt;
for (cnt = 0; *inptrp < inend; ++cnt)
data->__statep->__value.__wchb[cnt] = *(*inptrp)++;
data->__statep->__count &= ~7;
@@ -815,6 +815,7 @@ FUNCTION_NAME (struct __gconv_step *step, struct __gconv_step_data *data,
#undef TO_LOOP_MAX_NEEDED_FROM
#undef TO_LOOP_MIN_NEEDED_TO
#undef TO_LOOP_MAX_NEEDED_TO
+#undef DEFINE_DIRECTION_OBJECTS
#undef FROM_DIRECTION
#undef EMIT_SHIFT_TO_INIT
#undef FROM_LOOP