diff options
Diffstat (limited to 'mesalib/src/mapi/glapi/glapi_dispatch.c')
| -rw-r--r-- | mesalib/src/mapi/glapi/glapi_dispatch.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/mesalib/src/mapi/glapi/glapi_dispatch.c b/mesalib/src/mapi/glapi/glapi_dispatch.c index d2dd9654a..df907ff9d 100644 --- a/mesalib/src/mapi/glapi/glapi_dispatch.c +++ b/mesalib/src/mapi/glapi/glapi_dispatch.c @@ -144,6 +144,28 @@ GL_API void GL_APIENTRY glTexParameterxv (GLenum target, GLenum pname, const GLf GL_API void GL_APIENTRY glTranslatex (GLfixed x, GLfixed y, GLfixed z); GL_API void GL_APIENTRY glPointSizePointerOES (GLenum type, GLsizei stride, const GLvoid *pointer); +/* Enable frame pointer elimination on Windows, otherwise forgetting to add + * APIENTRY to _mesa_* entrypoints will not cause crashes on debug builds, as + * the initial ESP value is saved in the EBP in the function prologue, then + * restored on the epilogue, clobbering any corruption in the ESP pointer due + * to mismatch in the callee calling convention. + * + * On MSVC it's not sufficient to enable /Oy -- other optimizations must be + * enabled or frame pointer will be used regardless. + * + * We don't do this when NDEBUG is defined since, frame pointer omission + * optimization compiler flag are already specified on release builds, and + * because on profile builds we must have frame pointers or certain profilers + * might fail to unwind the stack. + */ +#if defined(_WIN32) && !defined(NDEBUG) +# if defined(_MSC_VER) +# pragma optimize( "gty", on ) +# elif defined(__GNUC__) +# pragma GCC optimize ("omit-frame-pointer") +# endif +#endif + #include "glapi/glapitemp.h" #endif /* USE_X86_ASM */ |