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newlib: don't define non-thread-safe versions of getc, putc 

getc, getchar, putc, putchar were defined both as functions and as
macros. The macro versions are not thread safe, and should not be used
in multithreaded applications.

Upstream fix: b0f271d1db
This commit is contained in:
Ivan Grokhotkov 2020-03-19 12:44:20 +01:00
parent 9e70825d1e
commit f6763a9d84
1 changed files with 4 additions and 0 deletions
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4
components/newlib/include/stdio.h
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@ -696,8 +696,10 @@ _ELIDABLE_INLINE int __sputc_r(struct _reent *_ptr, int _c, FILE *_p) {
#ifndef __CYGWIN__
#ifndef lint
#ifdef __SINGLE_THREAD__
#define getc(fp) __sgetc_r(_REENT, fp)
#define putc(x, fp) __sputc_r(_REENT, x, fp)
#endif /* __SINGLE_THREAD__ */
#endif /* lint */
#endif /* __CYGWIN__ */
@ -714,8 +716,10 @@ _ELIDABLE_INLINE int __sputc_r(struct _reent *_ptr, int _c, FILE *_p) {
#endif /* !__CUSTOM_FILE_IO__ */
#ifdef __SINGLE_THREAD__
#define getchar() getc(stdin)
#define putchar(x) putc(x, stdout)
#endif /* __SINGLE_THREAD__ */
#ifndef __STRICT_ANSI__
#define getchar_unlocked() getc_unlocked(stdin)