Function getImageInfo

flow/Platform.actor.cpp:3348–3378

#endif

platform::ImageInfo getImageInfo(const void* symbol) {
	Dl_info info;
	platform::ImageInfo imageInfo;

#ifdef __linux__
	link_map* linkMap = nullptr;
	int res = dladdr1(symbol, &info, (void**)&linkMap, RTLD_DL_LINKMAP);
#else
	int res = dladdr(symbol, &info);
#endif

	if (res != 0) {
		imageInfo.fileName = info.dli_fname;
		std::string imageFile = basename(info.dli_fname);
		// If we have a client library that doesn't end in the appropriate extension, we will get the wrong debug
		// suffix. This should only be a cosmetic problem, though.
#ifdef __linux__
		imageInfo.offset = (void*)linkMap->l_addr;
		if (imageFile.length() >= 3 && imageFile.rfind(".so") == imageFile.length() - 3) {
			imageInfo.symbolFileName = imageFile + "-debug";
		}
#else
		imageInfo.offset = info.dli_fbase;
		if (imageFile.length() >= 6 && imageFile.rfind(".dylib") == imageFile.length() - 6) {
			imageInfo.symbolFileName = imageFile + "-debug";
		}
#endif
		else {
			imageInfo.symbolFileName = imageFile + ".debug";
		}
	}

	return imageInfo;
}