Code size analysis

pw_cobs: Consistent Overhead Byte Stuffing (COBS) codec and zero-copy frame streamer

pw_cobs is designed for small Flash and RAM footprints on microcontrollers.

The table below shows the incremental Flash footprint of:

• One-shot COBS encode and decode (Encode and Decode).

• In-place EncodeBuffer (EncodeBuffer and EncodeInPlace).

• Streaming COBS Decoder (Decoder).

• All COBS primitives combined.

Label	Segment	Delta
One-shot COBS encode and decode	FLASH +72 pw::size_report::CobsSizeReport() +12 pw::internal_result::ResultMembers<>::ResultMembers() +10 pw::Result<>::Result<>() NEW +390 pw::cobs::Streamer::Write() NEW +276 pw::cobs::Decoder::ProcessChunk() NEW +188 pw::cobs::Encode() NEW +98 pw::cobs::Decode() NEW +88 pw::cobs::(anonymous namespace)::CopyNonZero() NEW +72 pw::cobs::(anonymous namespace)::FindFirstZero() NEW +46 std::__2::__min_element[abi:nqn240000]<>() NEW +34 pw::cobs::Streamer::Reset() NEW +30 pw::cobs::Streamer::Streamer() NEW +24 __aeabi_uread4 NEW +14 std::__2::min[abi:nqn240000]<>() NEW +14 std::__2::min_element[abi:nqn240000]<>()	+1,368
In-place EncodeBuffer	FLASH +108 [section .rodata] +4 vPortSVCHandler_C +28 pw::size_report::CobsSizeReport() +12 pw::internal_result::ResultMembers<>::ResultMembers() +10 pw::Result<>::Result<>() +4 __bi_84 NEW +390 pw::cobs::Streamer::Write() NEW +188 pw::cobs::Encode() NEW +94 pw::cobs::EncodeInPlace() NEW +88 pw::cobs::(anonymous namespace)::CopyNonZero() NEW +72 pw::cobs::(anonymous namespace)::FindFirstZero() NEW +64 pw::cobs::EncodeBuffer<>::append() NEW +46 std::__2::__min_element[abi:nqn240000]<>() NEW +34 pw::cobs::Streamer::Reset() NEW +32 pw::cobs::EncodeBuffer<>::Encode() NEW +32 pw::cobs::EncodeBuffer<>::EncodeBuffer() NEW +30 pw::cobs::Streamer::Streamer() NEW +24 __aeabi_uread4 NEW +14 std::__2::min[abi:nqn240000]<>() NEW +14 std::__2::min_element[abi:nqn240000]<>()	+1,288
Streaming COBS Decoder	FLASH +40 pw::size_report::CobsSizeReport() +12 pw::internal_result::ResultMembers<>::ResultMembers() +10 pw::Result<>::Result<>() NEW +276 pw::cobs::Decoder::ProcessChunk() NEW +88 pw::cobs::(anonymous namespace)::CopyNonZero() NEW +72 pw::cobs::(anonymous namespace)::FindFirstZero() NEW +24 __aeabi_uread4 NEW +20 pw::cobs::Decoder::Process() NEW +10 pw::cobs::Decoder::Clear()	+552
All COBS primitives combined	FLASH +108 [section .rodata] +8 vPortSVCHandler_C +148 pw::size_report::CobsSizeReport() +12 pw::internal_result::ResultMembers<>::ResultMembers() +10 pw::Result<>::Result<>() +4 __bi_84 NEW +390 pw::cobs::Streamer::Write() NEW +276 pw::cobs::Decoder::ProcessChunk() NEW +188 pw::cobs::Encode() NEW +98 pw::cobs::Decode() NEW +94 pw::cobs::EncodeInPlace() NEW +88 pw::cobs::(anonymous namespace)::CopyNonZero() NEW +72 pw::cobs::(anonymous namespace)::FindFirstZero() NEW +64 pw::cobs::EncodeBuffer<>::append() NEW +46 std::__2::__min_element[abi:nqn240000]<>() NEW +34 pw::cobs::Streamer::Reset() NEW +32 pw::cobs::EncodeBuffer<>::Encode() NEW +32 pw::cobs::EncodeBuffer<>::EncodeBuffer() NEW +30 pw::cobs::Streamer::Streamer() NEW +24 __aeabi_uread4 NEW +20 pw::cobs::Decoder::Process() NEW +14 std::__2::min[abi:nqn240000]<>() NEW +14 std::__2::min_element[abi:nqn240000]<>() NEW +10 pw::cobs::Decoder::Clear()	+1,816