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Add _REENT_INIT_PTR_ZEROED() 

Provide a _REENT_INIT_PTR_ZEROED() macro to initialize an already
zero-initialized struct _reent.

	* libc/include/sys/reent.h (_REENT_INIT_PTR_ZEROED): New.
	(_REENT_INIT_PTR): Define only once and use _REENT_INIT_PTR_ZEROED().
This commit is contained in:
Sebastian Huber 2015-12-14 09:57:54 +01:00 committed by Corinna Vinschen
parent 01885f533d
commit f376e4f93b
2 changed files with 14 additions and 6 deletions
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5
newlib/ChangeLog
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@ -1,3 +1,8 @@
2015-12-14 Sebastian Huber <sebastian.huber@embedded-brains.de>
* libc/include/sys/reent.h (_REENT_INIT_PTR_ZEROED): New.
(_REENT_INIT_PTR): Define only once and use _REENT_INIT_PTR_ZEROED().
2015-12-14 Sebastian Huber <sebastian.huber@embedded-brains.de> 2015-12-14 Sebastian Huber <sebastian.huber@embedded-brains.de>
* libc/include/sys/_sigset.h: New. * libc/include/sys/_sigset.h: New.

15
newlib/libc/include/sys/reent.h
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@ -446,9 +446,8 @@ extern const struct __sFILE_fake __sf_fake_stderr;
_NULL \ _NULL \
} }
#define _REENT_INIT_PTR(var) \ #define _REENT_INIT_PTR_ZEROED(var) \
{ memset((var), 0, sizeof(*(var))); \ { (var)->_stdin = (__FILE *)&__sf_fake_stdin; \
(var)->_stdin = (__FILE *)&__sf_fake_stdin; \
(var)->_stdout = (__FILE *)&__sf_fake_stdout; \ (var)->_stdout = (__FILE *)&__sf_fake_stdout; \
(var)->_stderr = (__FILE *)&__sf_fake_stderr; \ (var)->_stderr = (__FILE *)&__sf_fake_stderr; \
(var)->_current_locale = "C"; \ (var)->_current_locale = "C"; \
@ -694,9 +693,8 @@ struct _reent
{_NULL, 0, _NULL} \ {_NULL, 0, _NULL} \
} }
#define _REENT_INIT_PTR(var) \ #define _REENT_INIT_PTR_ZEROED(var) \
{ memset((var), 0, sizeof(*(var))); \ { (var)->_stdin = &(var)->__sf[0]; \
(var)->_stdin = &(var)->__sf[0]; \
(var)->_stdout = &(var)->__sf[1]; \ (var)->_stdout = &(var)->__sf[1]; \
(var)->_stderr = &(var)->__sf[2]; \ (var)->_stderr = &(var)->__sf[2]; \
(var)->_current_locale = "C"; \ (var)->_current_locale = "C"; \
@ -745,6 +743,11 @@ struct _reent
#endif /* !_REENT_SMALL */ #endif /* !_REENT_SMALL */
#define _REENT_INIT_PTR(var) \
{ memset((var), 0, sizeof(*(var))); \
_REENT_INIT_PTR_ZEROED(var); \
}
/* This value is used in stdlib/misc.c. reent/reent.c has to know it /* This value is used in stdlib/misc.c. reent/reent.c has to know it
as well to make sure the freelist is correctly free'd. Therefore as well to make sure the freelist is correctly free'd. Therefore
we define it here, rather than in stdlib/misc.c, as before. */ we define it here, rather than in stdlib/misc.c, as before. */