tree afa22483ea5fc9e1ae5402667eac1e1b5c398b85
parent 4507f34628dfae26e6b0a6faa13e5f9a49600616
author Jason Evans <je@fb.com> 1331074665 -0800
committer Jason Evans <je@fb.com> 1331165959 -0800

Implement malloc_vsnprintf().

Implement malloc_vsnprintf() (a subset of vsnprintf(3)) as well as
several other printing functions based on it, so that formatted printing
can be relied upon without concern for inducing a dependency on floating
point runtime support.  Replace malloc_write() calls with
malloc_*printf() where doing so simplifies the code.

Add name mangling for library-private symbols in the data and BSS
sections.  Adjust CONF_HANDLE_*() macros in malloc_conf_init() to expose
all opt_* variable use to cpp so that proper mangling occurs.