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2013-05-07 Sebastian Huber <sebastian.huber@embedded-brains.de>

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* libc/include/sys/reent.h (_ATEXIT_INIT): Define.
	(_ATEXIT_INIT_PTR): Likewise.
	(_REENT_INIT_ATEXIT): Likewise.
	(_REENT_INIT_ATEXIT_PTR): Likewise.
	(_GLOBAL_ATEXIT): Likewise.
	* libc/stdlib/__atexit.c (_GLOBAL_ATEXIT0): Define.
	(__register_exitproc): Use _GLOBAL_ATEXIT and _GLOBAL_ATEXIT0.
	* libc/stdlib/__call_atexit.c (__call_exitprocs): Likewise.
-
This commit is contained in:
Jeff Johnston 2013-05-07 21:40:10 +00:00
parent c0e447afd0
commit 6bd6954bdc
4 changed files with 42 additions and 15 deletions
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11
newlib/ChangeLog
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@ -1,3 +1,14 @@
2013-05-07 Sebastian Huber <sebastian.huber@embedded-brains.de>
* libc/include/sys/reent.h (_ATEXIT_INIT): Define.
(_ATEXIT_INIT_PTR): Likewise.
(_REENT_INIT_ATEXIT): Likewise.
(_REENT_INIT_ATEXIT_PTR): Likewise.
(_GLOBAL_ATEXIT): Likewise.
* libc/stdlib/__atexit.c (_GLOBAL_ATEXIT0): Define.
(__register_exitproc): Use _GLOBAL_ATEXIT and _GLOBAL_ATEXIT0.
* libc/stdlib/__call_atexit.c (__call_exitprocs): Likewise.
2013-05-07 Sebastian Huber <sebastian.huber@embedded-brains.de> 2013-05-07 Sebastian Huber <sebastian.huber@embedded-brains.de>
* libc/stdlib/__atexit.c (__atexit_lock): Declare. * libc/stdlib/__atexit.c (__atexit_lock): Declare.

32
newlib/libc/include/sys/reent.h
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@ -85,6 +85,12 @@ struct _atexit {
void (*_fns[_ATEXIT_SIZE])(void); /* the table itself */ void (*_fns[_ATEXIT_SIZE])(void); /* the table itself */
struct _on_exit_args * _on_exit_args_ptr; struct _on_exit_args * _on_exit_args_ptr;
}; };
# define _ATEXIT_INIT {_NULL, 0, {_NULL}, _NULL}
# define _ATEXIT_INIT_PTR(var) \
(var)->_next = _NULL; \
(var)->_ind = 0; \
(var)->_fns[0] = _NULL; \
(var)->_on_exit_args_ptr = _NULL
#else #else
struct _atexit { struct _atexit {
struct _atexit *_next; /* next in list */ struct _atexit *_next; /* next in list */
@ -93,8 +99,20 @@ struct _atexit {
void (*_fns[_ATEXIT_SIZE])(void); /* the table itself */ void (*_fns[_ATEXIT_SIZE])(void); /* the table itself */
struct _on_exit_args _on_exit_args; struct _on_exit_args _on_exit_args;
}; };
# define _ATEXIT_INIT {_NULL, 0, {_NULL}, {{_NULL}, {_NULL}, 0, 0}}
# define _ATEXIT_INIT_PTR(var) \
(var)->_next = _NULL; \
(var)->_ind = 0; \
(var)->_fns[0] = _NULL; \
(var)->_on_exit_args._fntypes = 0; \
(var)->_on_exit_args._fnargs[0] = _NULL
#endif #endif
#define _REENT_INIT_ATEXIT \
_NULL, _ATEXIT_INIT,
#define _REENT_INIT_ATEXIT_PTR(var, var0) \
(var)->_atexit = _NULL; _ATEXIT_INIT_PTR(var0);
/* /*
* Stdio buffers. * Stdio buffers.
* *
@ -425,8 +443,7 @@ extern const struct __sFILE_fake __sf_fake_stderr;
_NULL, \ _NULL, \
_NULL, \ _NULL, \
_NULL, \ _NULL, \
_NULL, \ _REENT_INIT_ATEXIT \
{_NULL, 0, {_NULL}, _NULL}, \
{_NULL, 0, _NULL}, \ {_NULL, 0, _NULL}, \
_NULL, \ _NULL, \
_NULL, \ _NULL, \
@ -452,11 +469,7 @@ extern const struct __sFILE_fake __sf_fake_stderr;
(var)->_localtime_buf = _NULL; \ (var)->_localtime_buf = _NULL; \
(var)->_asctime_buf = _NULL; \ (var)->_asctime_buf = _NULL; \
(var)->_sig_func = _NULL; \ (var)->_sig_func = _NULL; \
(var)->_atexit = _NULL; \ _REENT_INIT_ATEXIT_PTR(var, &(var)->_atexit0) \
(var)->_atexit0._next = _NULL; \
(var)->_atexit0._ind = 0; \
(var)->_atexit0._fns[0] = _NULL; \
(var)->_atexit0._on_exit_args_ptr = _NULL; \
(var)->__sglue._next = _NULL; \ (var)->__sglue._next = _NULL; \
(var)->__sglue._niobs = 0; \ (var)->__sglue._niobs = 0; \
(var)->__sglue._iobs = _NULL; \ (var)->__sglue._iobs = _NULL; \
@ -698,8 +711,7 @@ struct _reent
{0, {0}} \ {0, {0}} \
} \ } \
}, \ }, \
_NULL, \ _REENT_INIT_ATEXIT \
{_NULL, 0, {_NULL}, {{_NULL}, {_NULL}, 0, 0}}, \
_NULL, \ _NULL, \
{_NULL, 0, _NULL} \ {_NULL, 0, _NULL} \
} }
@ -791,6 +803,8 @@ void _reclaim_reent _PARAMS ((struct _reent *));
#define _GLOBAL_REENT _global_impure_ptr #define _GLOBAL_REENT _global_impure_ptr
#define _GLOBAL_ATEXIT (_GLOBAL_REENT->_atexit)
#ifdef __cplusplus #ifdef __cplusplus
} }
#endif #endif

10
newlib/libc/stdlib/__atexit.c
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@ -15,6 +15,8 @@ void * malloc(size_t) _ATTRIBUTE((__weak__));
extern _LOCK_RECURSIVE_T __atexit_lock; extern _LOCK_RECURSIVE_T __atexit_lock;
#endif #endif
#define _GLOBAL_ATEXIT0 (&_GLOBAL_REENT->_atexit0)
/* /*
* Register a function to be performed at exit or on shared library unload. * Register a function to be performed at exit or on shared library unload.
*/ */
@ -34,9 +36,9 @@ _DEFUN (__register_exitproc,
__lock_acquire_recursive(__atexit_lock); __lock_acquire_recursive(__atexit_lock);
#endif #endif
p = _GLOBAL_REENT->_atexit; p = _GLOBAL_ATEXIT;
if (p == NULL) if (p == NULL)
_GLOBAL_REENT->_atexit = p = &_GLOBAL_REENT->_atexit0; _GLOBAL_ATEXIT = p = _GLOBAL_ATEXIT0;
if (p->_ind >= _ATEXIT_SIZE) if (p->_ind >= _ATEXIT_SIZE)
{ {
#ifndef _ATEXIT_DYNAMIC_ALLOC #ifndef _ATEXIT_DYNAMIC_ALLOC
@ -56,8 +58,8 @@ _DEFUN (__register_exitproc,
return -1; return -1;
} }
p->_ind = 0; p->_ind = 0;
p->_next = _GLOBAL_REENT->_atexit; p->_next = _GLOBAL_ATEXIT;
_GLOBAL_REENT->_atexit = p; _GLOBAL_ATEXIT = p;
#ifndef _REENT_SMALL #ifndef _REENT_SMALL
p->_on_exit_args._fntypes = 0; p->_on_exit_args._fntypes = 0;
p->_on_exit_args._is_cxa = 0; p->_on_exit_args._is_cxa = 0;

4
newlib/libc/stdlib/__call_atexit.c
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@ -76,8 +76,8 @@ _DEFUN (__call_exitprocs, (code, d),
restart: restart:
p = _GLOBAL_REENT->_atexit; p = _GLOBAL_ATEXIT;
lastp = &_GLOBAL_REENT->_atexit; lastp = &_GLOBAL_ATEXIT;
while (p) while (p)
{ {
#ifdef _REENT_SMALL #ifdef _REENT_SMALL