void DwarfFDECache<A>::add(pint_t mh, pint_t ip_start, pint_t ip_end, pint_t fde)
{
//fprintf(stderr, "DwarfFDECache::add(mh=0x%llX, ip_start=0x%llX, ip_end=0x%llX, fde=0x%llX) pthread=%p\n",
// (uint64_t)mh, (uint64_t)ip_start, (uint64_t)ip_end, (uint64_t)fde, pthread_self());
DEBUG_LOG_NON_ZERO(::pthread_rwlock_wrlock(&fgLock));
if ( fgBufferUsed >= fgBufferEnd ) {
int oldSize = fgBufferEnd - fgBuffer;
int newSize = oldSize*4;
entry* newBuffer = (entry*)malloc(newSize*sizeof(entry)); // can't use operator new in libSystem.dylib
memcpy(newBuffer, fgBuffer, oldSize*sizeof(entry));
//fprintf(stderr, "DwarfFDECache::add() growing buffer to %d\n", newSize);
if ( fgBuffer != fgInitialBuffer )
free(fgBuffer);
fgBuffer = newBuffer;
fgBufferUsed = &newBuffer[oldSize];
fgBufferEnd = &newBuffer[newSize];
}
fgBufferUsed->mh = mh;
fgBufferUsed->ip_start = ip_start;
fgBufferUsed->ip_end = ip_end;
fgBufferUsed->fde = fde;
++fgBufferUsed;
if ( !fgRegisteredForDyldUnloads ) {
_dyld_register_func_for_remove_image(&dyldUnloadHook);
fgRegisteredForDyldUnloads = true;
}
DEBUG_LOG_NON_ZERO(::pthread_rwlock_unlock(&fgLock));
}
void RegisterAlreadyLoadedClasses()
{
//for (uint32_t i = 0; i < _dyld_image_count(); i++)
//{
// const struct mach_header* hdr = _dyld_get_image_header(i);
// ProcessImageLoad(hdr, 0);
//}
_dyld_register_func_for_add_image(ProcessImageLoad);
_dyld_register_func_for_remove_image(ProcessImageUnload);
//std::cout << "Done registering\n";
}
void
__darwin_gcc3_preregister_frame_info (void)
{
const _Tinfo_Node *info;
_init_keymgr ();
info = (_Tinfo_Node *)__keymgr_global[2];
if (info != NULL)
{
if (info->major_version >= KEYMGR_API_MAJOR_GCC3)
return;
/* Otherwise, use our own add_image_hooks. */
}
_dyld_register_func_for_add_image (darwin_unwind_dyld_add_image_hook);
_dyld_register_func_for_remove_image (darwin_unwind_dyld_remove_image_hook);
}
void _d_osx_image_init()
{
_dyld_register_func_for_add_image( &on_add_image );
_dyld_register_func_for_remove_image( &on_remove_image );
}
