Problem with recent change to getlocalename_l

Corinna Vinschen vinschen@redhat.com
Thu Feb 1 19:44:32 GMT 2024


On Feb  1 20:11, Corinna Vinschen wrote:
> No, wait.
> 
> On Feb  1 20:00, Corinna Vinschen wrote:
> > Given that this new functionality needs a 32 byte buffer, and given that
> > _REENT_SMALL targets are... well... small, I made the new buffer
> > optional via `#ifdef _MB_CAPABLE' in struct _misc_reent, which only used
> > by _REENT_SMALL targets.
> > 
> > Apparently I missed to take the _REENT_CHECK_MISC expression into account.
> > AFAICS the culprit is the _REENT_INIT_MISC macro now.
> > 
> > Can you please check if this change fixes the problem?
> 
> Try this one instead, please:

Sorry, I suddenly realized that I screwed up the name of the new member
as well.  Sigh.

Please try this one, it's also much simpler:

diff --git a/newlib/libc/include/sys/reent.h b/newlib/libc/include/sys/reent.h
index 4e60c3096ae2..0cba1667cc66 100644
--- a/newlib/libc/include/sys/reent.h
+++ b/newlib/libc/include/sys/reent.h
@@ -514,6 +514,11 @@ struct _reent
 #define _REENT_CHECK_EMERGENCY(var) \
   _REENT_CHECK(var, _emergency, char *, _REENT_EMERGENCY_SIZE, /* nothing */)
 
+#ifdef _MB_CAPABLE
+#define __REENT_INIT_MISC_GETLOCALENAME_L _r->_misc->_getlocalename_l_buf[0] = '\0'
+#else
+#define __REENT_INIT_MISC_GETLOCALENAME_L
+#endif
 #define _REENT_INIT_MISC(var) do { \
   struct _reent *_r = (var); \
   _r->_misc->_strtok_last = _NULL; \
@@ -533,7 +538,7 @@ struct _reent
   _r->_misc->_wcrtomb_state.__value.__wch = 0; \
   _r->_misc->_wcsrtombs_state.__count = 0; \
   _r->_misc->_wcsrtombs_state.__value.__wch = 0; \
-  _r->_misc->_getlocale_l_buf[0] = '\0'; \
+  __REENT_INIT_MISC_GETLOCALENAME_L; \
   _r->_misc->_l64a_buf[0] = '\0'; \
   _r->_misc->_getdate_err = 0; \
 } while (0)


Sorry,
Corinna



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