apache/nuttx
Oct 2024 – Dec 2024
3 Months active
Languages Used
CCMake
Technical Skills
Compiler DirectivesEmbedded SystemsARM ArchitectureARM AssemblyBuild SystemsC Programming
guoshichao
PROFILE
Guoshichao
Guo Shichao contributed to the apache/nuttx repository by developing foundational system header scaffolding and a compatibility layer to standardize kernel-userland interfaces, introducing core types, headers, and system constants for improved ABI stability. He enhanced build reliability and portability by implementing cross-architecture macro definitions, correcting ARMv6-M service call dispatch, and resolving symbol conflicts. Guo also expanded the API surface with a new get_current_dir_name function, supporting automation and scripting. His work demonstrated depth in C programming, ARM architecture, and embedded systems, focusing on maintainable solutions that address cross-toolchain compatibility, build stability, and long-term codebase portability for embedded operating systems.
Overall Statistics
Feature vs Bugs
75%Features
Repository Contributions
18Total
Bugs
1
Commits
18
Features
3
Lines of code
301
Activity Months3
Your Network
316 people
Work History
December 2024
12 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for apache/nuttx: Delivered foundational System Header Scaffolding and Compatibility Layer to standardize kernel-userland interfaces. Implemented core types, header files, and system constants (loff_t, wait.h, sem.h, fcntl.h, signal handling, mount/prctl/socket constants), enabling consistent ABI and easier cross-module integration. Key commits touched core types and headers, including loff_t type definition, wait.h/sem.h/fcntl.h headers, signal SA_NOMASK, sa_restorer, and socket constants; added LINE_MAX, RLIMIT_NICE, PR_SET_DUMPABLE, and SOL_PACKET definitions, plus mount flag definitions. Overall, established a robust foundation for future features and improved portability across the Nuttx codebase.
12 Commits • 1 Features
Dec 1, 2024December 2024 monthly summary for apache/nuttx: Delivered foundational System Header Scaffolding and Compatibility Layer to standardize kernel-userland interfaces. Implemented core types, header files, and system constants (loff_t, wait.h, sem.h, fcntl.h, signal handling, mount/prctl/socket constants), enabling consistent ABI and easier cross-module integration. Key commits touched core types and headers, including loff_t type definition, wait.h/sem.h/fcntl.h headers, signal SA_NOMASK, sa_restorer, and socket constants; added LINE_MAX, RLIMIT_NICE, PR_SET_DUMPABLE, and SOL_PACKET definitions, plus mount flag definitions. Overall, established a robust foundation for future features and improved portability across the Nuttx codebase.
December 2024
November 2024
5 Commits • 2 Features
Nov 1, 2024November 2024 (2024-11) monthly summary for apache/nuttx: Focused on strengthening build stability across toolchains, standardizing architectural features, and expanding the API surface to improve developer productivity and automation. Delivered cross-arch macro definitions, corrected ARMv6-M svc dispatch, resolved idle symbol duplication, and introduced a new get_current_dir_name API.
November 2024
5 Commits • 2 Features
Nov 1, 2024November 2024 (2024-11) monthly summary for apache/nuttx: Focused on strengthening build stability across toolchains, standardizing architectural features, and expanding the API surface to improve developer productivity and automation. Delivered cross-arch macro definitions, corrected ARMv6-M svc dispatch, resolved idle symbol duplication, and introduced a new get_current_dir_name API.
October 2024
1 Commits
Oct 1, 2024October 2024 monthly summary for Apache Nuttx: Delivered a cross-compiler compatibility improvement for the Naked Function Macro in the Nuttx repository. Implemented conditional definition of the naked_function macro to support Green Hills Compiler versions prior to 202354, addressing a compiler warning and ensuring clean, portable builds across toolchains. The change is linked to commit f94e092fade72d8c875fc99fd535cb7367710aa8 with the message 'ghs: fix the naked_function attr cannot handle warning'. This work reduces build warnings, enhances cross-toolchain reliability, and strengthens Nuttx portability for embedded deployments, contributing to more stable CI and downstream usage.
1 Commits
Oct 1, 2024October 2024 monthly summary for Apache Nuttx: Delivered a cross-compiler compatibility improvement for the Naked Function Macro in the Nuttx repository. Implemented conditional definition of the naked_function macro to support Green Hills Compiler versions prior to 202354, addressing a compiler warning and ensuring clean, portable builds across toolchains. The change is linked to commit f94e092fade72d8c875fc99fd535cb7367710aa8 with the message 'ghs: fix the naked_function attr cannot handle warning'. This work reduces build warnings, enhances cross-toolchain reliability, and strengthens Nuttx portability for embedded deployments, contributing to more stable CI and downstream usage.
October 2024
Activity
Loading activity data...
Quality Metrics
Correctness94.4%
Maintainability94.4%
Architecture94.4%
Performance91.2%
AI Usage20.0%
Skills & Technologies
Programming Languages
CCMake
Technical Skills
ARM ArchitectureARM AssemblyBuild SystemsC ProgrammingCompiler DevelopmentCompiler DirectivesConfiguration ManagementEmbedded SystemsKernel DevelopmentNetwork ProgrammingOperating System DevelopmentOperating SystemsSignal HandlingSystem Programming
Repositories Contributed To
Overview of all repositories you've contributed to across your timeline