File .text Size Crate Name 0.0% 1.2% 1.2KiB usb_device usb_device::device::UsbDevice::poll 0.0% 1.2% 1.1KiB usbd_human_interface_device? ::pack 0.0% 1.1% 1.1KiB std core::str::count::do_count_chars 0.0% 1.1% 1.1KiB usbd_human_interface_device? ::pack 0.0% 1.0% 1000B stm32_usbd? as usb_device::bus::UsbBus>::alloc_ep 0.0% 0.9% 928B f072_usb f072_usb::__cortex_m_rt_main 0.0% 0.9% 892B bitvec bitvec::devel::is_unsigned 0.0% 0.9% 872B stm32f0xx_hal stm32f0xx_hal::rcc::CFGR::freeze 0.0% 0.9% 872B usb_device usb_device::device::UsbDevice::control_out 0.0% 0.8% 836B usb_device usb_device::device::UsbDevice::control_in 0.0% 0.8% 796B usbd_human_interface_device? as usb_device::class::UsbClass>::control_in 0.0% 0.7% 740B stm32_usbd? as usb_device::bus::UsbBus>::poll::{{closure}} 0.0% 0.7% 728B stm32f0xx_hal? as embedded_hal::timer::CountDown>::start 0.0% 0.7% 720B usbd_human_interface_device? as usb_device::class::UsbClass>::control_out 0.0% 0.7% 666B std core::fmt::Formatter::pad 0.0% 0.7% 656B bitvec bitvec::slice::BitSlice::copy_within_unchecked 0.0% 0.6% 632B std core::fmt::Formatter::pad_integral 0.0% 0.6% 616B std ::write_str 0.0% 0.6% 580B usb_device usb_device::descriptor::DescriptorWriter::write_with 0.0% 0.6% 580B usb_device usb_device::descriptor::DescriptorWriter::write_with 2.2% 83.0% 80.2KiB And 803 smaller methods. Use -n N to show more. 2.6% 100.0% 96.6KiB .text section size, the file size is 3.6MiB