ShuriZma
/
duckstation
mirror of https://github.com/stenzek/duckstation
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Common/Log: Fix corrupted output/UB with va_copy 

Fixes crashes on GCC9+ (#9), maybe others.
This commit is contained in:
Connor McLaughlin 2020-02-01 11:04:29 +10:00
parent c72d86cf1b
commit b11a7a106f
1 changed files with 5 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/common/log.cpp
View File

@ -321,10 +321,12 @@ void Writev(const char* channelName, const char* functionName, LOGLEVEL level, c
va_copy(apCopy, ap); va_copy(apCopy, ap);
#ifdef WIN32 #ifdef WIN32
u32 requiredSize = static_cast<u32>(_vscprintf(format, ap)); u32 requiredSize = static_cast<u32>(_vscprintf(format, apCopy));
#else #else
u32 requiredSize = std::vsnprintf(nullptr, 0, format, ap); u32 requiredSize = std::vsnprintf(nullptr, 0, format, apCopy);
#endif #endif
va_end(apCopy);
if (requiredSize < 256) if (requiredSize < 256)
{ {
char buffer[256]; char buffer[256];