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Gregory Nutt 2014-12-08 10:41:56 -06:00
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@ -9162,3 +9162,9 @@
all SPI and all F2 and F4 (let me know if this introduces any other
issues). Discovered and fixed by Sebastien Lorquet after much
consternation (2014-12-8).
* libc/stdio/lib_avsprintf.c: avsprintf(): Fix a bug in usage of
va_list on x86. On x86, va_list is a pointer to a single copy on the
stack. avsprintf() calls lib_vsprintf() twice and so traverses the
va_list twice using va_start. va_start modifies that single copy on
he stack so that the second call to lib_vsprintf() fails. This appears
to be an issue with x86 only so far (2014-12-8).