From: Torbjorn SVENSSON <torbjorn.svensson@foss.st.com>
To: <newlib@sourceware.org>
Subject: Re: Problem with recent change to getlocalename_l
Date: Thu, 1 Feb 2024 21:55:50 +0100 [thread overview]
Message-ID: <4dfaab6c-f66a-434c-9c0e-bb4efd4c3195@foss.st.com> (raw)
In-Reply-To: <Zbvs4nSnOUcxOXDJ@calimero.vinschen.de>
On 2024-02-01 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:
>
> diff --git a/newlib/libc/include/sys/reent.h b/newlib/libc/include/sys/reent.h
> index 4e60c3096ae2..1fd503b9a699 100644
> --- a/newlib/libc/include/sys/reent.h
> +++ b/newlib/libc/include/sys/reent.h
> @@ -514,8 +514,8 @@ struct _reent
> #define _REENT_CHECK_EMERGENCY(var) \
> _REENT_CHECK(var, _emergency, char *, _REENT_EMERGENCY_SIZE, /* nothing */)
>
> -#define _REENT_INIT_MISC(var) do { \
> - struct _reent *_r = (var); \
> +/* Do not call directly, use _REENT_INIT_MISC(var) instead */
Maybe do an #undef after the _REENT_INIT_MISC has been define to prevent
the __REENT_INIT_MISC_BODY symbol to be visible outside this block would
work here?
> +#define __REENT_INIT_MISC_BODY(_r) \
> _r->_misc->_strtok_last = _NULL; \
> _r->_misc->_mblen_state.__count = 0; \
> _r->_misc->_mblen_state.__value.__wch = 0; \
> @@ -533,10 +533,20 @@ 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'; \
> _r->_misc->_l64a_buf[0] = '\0'; \
> - _r->_misc->_getdate_err = 0; \
> + _r->_misc->_getdate_err = 0;
> +#ifdef _MB_CAPABLE
> +#define _REENT_INIT_MISC(var) do { \
> + struct _reent *_r = (var); \
> + __REENT_INIT_MISC_BODY(_r) \
> + _r->_misc->_getlocale_l_buf[0] = '\0'; \
> +} while (0)
> +#else
> +#define _REENT_INIT_MISC(var) do { \
> + struct _reent *_r = (var); \
> + __REENT_INIT_MISC_BODY(_r) \
> } while (0)
> +#endif
Something like this here:
#undef __REENT_INIT_MISC_BODY
> #define _REENT_CHECK_MISC(var) \
> _REENT_CHECK(var, _misc, struct _misc_reent *, sizeof *((var)->_misc), _REENT_INIT_MISC(var))
>
>
next prev parent reply other threads:[~2024-02-01 20:55 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-01 16:39 Jeff Law
2024-02-01 19:00 ` Corinna Vinschen
2024-02-01 19:11 ` Corinna Vinschen
2024-02-01 19:44 ` Corinna Vinschen
2024-02-04 19:34 ` Dimitar Dimitrov
2024-02-05 2:39 ` Jeff Law
2024-02-05 9:39 ` Corinna Vinschen
2024-02-01 20:55 ` Torbjorn SVENSSON [this message]
2024-02-01 21:55 ` Corinna Vinschen
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