mirror of
git://sourceware.org/git/newlib-cygwin.git
synced 2025-01-18 20:39:33 +08:00
e02866a1b4
A few files were missing headers for memset/malloc, likely missed
because the files don't directly call the functions, rather they
come in via macros in libc/include/sys/reent.h:
#define _REENT_CHECK(var, what, type, size, init) do { \
struct _reent *_r = (var); \
if (_r->what == NULL) { \
_r->what = (type)malloc(size); \
#define _REENT_CHECK_ASCTIME_BUF(var) \
_REENT_CHECK(var, _asctime_buf, char *, _REENT_ASCTIME_SIZE, \
memset((var)->_asctime_buf, 0, _REENT_ASCTIME_SIZE))
Without these fixes, implicit function signatures are provided,
which gcc warns could cause aliasing issues down the line:
../../../../../../../newlib-2.5.0/newlib/libc/time/asctime.c:62:3: warning: type of 'memset' does not match original declaration [-Wlto-type-mismatch]
/Volumes/code/external/newlib-cygwin/newlib/libc/include/string.h:29:7: note: return value type mismatch
_PTR _EXFUN(memset,(_PTR, int, size_t));
^
/Volumes/code/external/newlib-cygwin/newlib/libc/include/string.h:29:7: note: 'memset' was previously declared here
/Volumes/code/external/newlib-cygwin/newlib/libc/include/string.h:29:7: note: code may be misoptimized unless -fno-strict-aliasing is used
../../../../../../../newlib-2.5.0/newlib/libc/time/asctime.c:62:3: warning: type of 'malloc' does not match original declaration [-Wlto-type-mismatch]
/Volumes/code/external/newlib-cygwin/newlib/libc/include/malloc.h:37:13: note: return value type mismatch
extern _PTR malloc _PARAMS ((size_t));
^
/Volumes/code/external/newlib-cygwin/newlib/libc/include/malloc.h:37:13: note: 'malloc' was previously declared here
/Volumes/code/external/newlib-cygwin/newlib/libc/include/malloc.h:37:13: note: code may be misoptimized unless -fno-strict-aliasing is used
../../../../../../../newlib-2.5.0/newlib/libc/time/lcltime.c:58:3: warning: type of 'malloc' does not match original declaration [-Wlto-type-mismatch]
/Volumes/code/external/newlib-cygwin/newlib/libc/include/malloc.h:37:13: note: return value type mismatch
extern _PTR malloc _PARAMS ((size_t));
^
/Volumes/code/external/newlib-cygwin/newlib/libc/include/malloc.h:37:13: note: 'malloc' was previously declared here
/Volumes/code/external/newlib-cygwin/newlib/libc/include/malloc.h:37:13: note: code may be misoptimized unless -fno-strict-aliasing is used
../../../../../../../newlib-2.5.0/newlib/libc/string/strsignal.c:70:3: warning: type of 'malloc' does not match original declaration [-Wlto-type-mismatch]
/Volumes/code/external/newlib-cygwin/newlib/libc/include/malloc.h:37:13: note: return value type mismatch
extern _PTR malloc _PARAMS ((size_t));
^
/Volumes/code/external/newlib-cygwin/newlib/libc/include/malloc.h:37:13: note: 'malloc' was previously declared here
/Volumes/code/external/newlib-cygwin/newlib/libc/include/malloc.h:37:13: note: code may be misoptimized unless -fno-strict-aliasing is used
Including the proper headers elminates the implicit function
signatures and these warnings.
69 lines
1.3 KiB
C
69 lines
1.3 KiB
C
/*
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* asctime.c
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* Original Author: G. Haley
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*
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* Converts the broken down time in the structure pointed to by tim_p into a
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* string of the form
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*
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* Wed Jun 15 11:38:07 1988\n\0
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*
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* Returns a pointer to the string.
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*/
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/*
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FUNCTION
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<<asctime>>---format time as string
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INDEX
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asctime
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INDEX
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_asctime_r
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ANSI_SYNOPSIS
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#include <time.h>
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char *asctime(const struct tm *<[clock]>);
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char *_asctime_r(const struct tm *<[clock]>, char *<[buf]>);
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TRAD_SYNOPSIS
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#include <time.h>
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char *asctime(<[clock]>)
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struct tm *<[clock]>;
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char *asctime_r(<[clock]>)
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struct tm *<[clock]>;
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char *<[buf]>;
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DESCRIPTION
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Format the time value at <[clock]> into a string of the form
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. Wed Jun 15 11:38:07 1988\n\0
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The string is generated in a static buffer; each call to <<asctime>>
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overwrites the string generated by previous calls.
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RETURNS
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A pointer to the string containing a formatted timestamp.
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PORTABILITY
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ANSI C requires <<asctime>>.
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<<asctime>> requires no supporting OS subroutines.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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#include <_ansi.h>
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#include <reent.h>
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#ifndef _REENT_ONLY
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char *
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_DEFUN (asctime, (tim_p),
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_CONST struct tm *tim_p)
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{
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struct _reent *reent = _REENT;
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_REENT_CHECK_ASCTIME_BUF(reent);
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return asctime_r (tim_p, _REENT_ASCTIME_BUF(reent));
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}
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#endif
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