diff options
| author | jstebbins <[email protected]> | 2011-11-18 23:54:35 +0000 |
|---|---|---|
| committer | jstebbins <[email protected]> | 2011-11-18 23:54:35 +0000 |
| commit | 3fa8817b961e616366a28a46b149375332be9123 (patch) | |
| tree | 2e0b610b6cabc38a2de8dd4998bd5e40b8f4c7a7 /libhb/common.h | |
| parent | d1f9c570e471bec711cc654f441d040bed0a5e08 (diff) | |
Align stack of all threads created by libhb
This is a preemptive measure to prevent any future crashes in SSE code
that requires 16 byte stack alignment.
git-svn-id: svn://svn.handbrake.fr/HandBrake/trunk@4358 b64f7644-9d1e-0410-96f1-a4d463321fa5
Diffstat (limited to 'libhb/common.h')
| -rw-r--r-- | libhb/common.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/libhb/common.h b/libhb/common.h index a657eb2ff..52e1d9630 100644 --- a/libhb/common.h +++ b/libhb/common.h @@ -18,6 +18,17 @@ #include <sys/stat.h> #include <dirent.h> +/* + * It seems WinXP doesn't align the stack of new threads to 16 bytes. + * To prevent crashes in SSE functions, we need to force stack alignement + * of new threads. + */ +#if defined( __GNUC__ ) && (defined( _WIN32 ) || defined( __MINGW32__ )) +# define attribute_align_thread __attribute__((force_align_arg_pointer)) +#else +# define attribute_align_thread +#endif + #if defined( __GNUC__ ) && !(defined( _WIN32 ) || defined( __MINGW32__ )) # define HB_WPRINTF(s,v) __attribute__((format(printf,s,v))) #else |