Binutils Testsuite Status Analysis For Commit A80775c9278de10223c8db54b8da7a31cdfa0567
This article provides a comprehensive report on the Binutils testsuite status for commit a80775c9278de10223c8db54b8da7a31cdfa0567. The discussion category for this report is patrick-rivos and gcc-postcommit-ci. This report details new failures, resolved failures, and unresolved failures across different architectures and libraries, including gcc, g++, and gfortran.
Summary of Binutils Testsuite Status
To provide a clear overview, the following tables summarize the testsuite status. The tables cover new failures, resolved failures, and unresolved failures, categorized by compiler (gcc, g++, gfortran) and platform configurations.
New Failures
Currently, there are no new failures reported in this testsuite status. This indicates that the changes introduced in commit a80775c9278de10223c8db54b8da7a31cdfa0567 did not introduce any new issues in the tested configurations. This is a positive sign, suggesting the stability of the codebase regarding new changes.
| New Failures | gcc | g++ | gfortran | Previous Hash |
|---|---|---|---|---|
Resolved Failures
Similarly, there are no resolved failures reported in this status. Resolved failures would indicate issues that were present in previous commits but have been fixed in the current commit. The absence of resolved failures might mean that previously existing issues are still under investigation or have not been addressed in this particular commit.
| Resolved Failures | gcc | g++ | gfortran | Previous Hash |
|---|---|---|---|---|
Unresolved Failures
The following table outlines the unresolved failures, which are the main focus of this report. These failures persist from the previous hash (8aad677a12832885acd5be1de8f41e740b8e713d) and require further investigation and resolution. The table breaks down the failures by platform, architecture, and compiler.
| Unresolved Failures | gcc | g++ | gfortran | Previous Hash |
|---|---|---|---|---|
| linux: rv32gc ilp32d medlow multilib | 27/14 | 8/2 | 12/2 | 8aad677a12832885acd5be1de8f41e740b8e713d |
| linux: rv64gc lp64d medlow multilib | 25/13 | 8/2 | 12/2 | 8aad677a12832885acd5be1de8f41e740b8e713d |
| newlib: rv32gc ilp32d medlow multilib | 58/20 | 38/6 | 0/0 | 8aad677a12832885acd5be1de8f41e740b8e713d |
| newlib: rv64gc lp64d medlow multilib | 47/16 | 11/3 | 0/0 | 8aad677a12832885acd5be1de8f41e740b8e713d |
Detailed Analysis of Unresolved Failures
The unresolved failures are categorized based on the target environment and the specific compilers affected. Each category represents a unique configuration, and understanding these configurations is crucial for effective debugging and resolution.
Linux: rv32gc ilp32d medlow multilib
This configuration targets the RISC-V 32-bit architecture (rv32gc) with the ilp32d data model, medlow code model, and utilizes a multilib setup within a Linux environment. The ilp32d data model implies that integers, longs, and pointers are 32 bits, and doubles are also 32 bits. The medlow code model refers to the medium-low code model, which typically places the code in the lower half of the address space. Multilib refers to the use of multiple libraries compiled for different target architectures or ABIs. This configuration exhibits significant unresolved failures:
- gcc: 27 failures out of 14 tests
- g++: 8 failures out of 2 tests
- gfortran: 12 failures out of 2 tests
These numbers indicate a high failure rate, particularly for gcc. The large number of failures in gcc suggests potential issues in the core compiler functionality or its interaction with the specific architecture and libraries.
Linux: rv64gc lp64d medlow multilib
This configuration is similar to the previous one but targets the RISC-V 64-bit architecture (rv64gc) with the lp64d data model. lp64d implies that longs and pointers are 64 bits, and doubles are also 64 bits. The medlow code model and multilib setup remain the same. The unresolved failures in this configuration are:
- gcc: 25 failures out of 13 tests
- g++: 8 failures out of 2 tests
- gfortran: 12 failures out of 2 tests
The failure counts are comparable to the rv32gc configuration, suggesting that the underlying issues might be architecture-independent or related to the medlow code model and multilib setup. The consistent failure patterns across 32-bit and 64-bit architectures might point to problems in the common components or configurations.
newlib: rv32gc ilp32d medlow multilib
This configuration uses the newlib C library instead of the standard glibc. newlib is often used in embedded systems due to its smaller footprint. The target architecture is rv32gc with ilp32d, medlow, and multilib, similar to the Linux configurations. The unresolved failures are:
- gcc: 58 failures out of 20 tests
- g++: 38 failures out of 6 tests
- gfortran: 0 failures out of 0 tests
The significant increase in failures for gcc and g++ in the newlib environment suggests potential issues related to the interaction between the compilers and the newlib library. The absence of failures in gfortran could indicate that the issues are specific to C and C++ runtime environments.
newlib: rv64gc lp64d medlow multilib
This configuration combines the newlib C library with the rv64gc architecture and lp64d data model. The medlow code model and multilib setup are also in use. The unresolved failures are:
- gcc: 47 failures out of 16 tests
- g++: 11 failures out of 3 tests
- gfortran: 0 failures out of 0 tests
Similar to the rv32gc newlib configuration, gcc exhibits a high number of failures. G++ also shows a notable number of failures, while gfortran remains unaffected. This pattern reinforces the hypothesis that the issues are primarily related to the C and C++ compilers and their interaction with the newlib library in the RISC-V architecture.
Associated Run
For more detailed information and logs, the associated run can be found at: https://github.com/patrick-rivos/gcc-postcommit-ci/actions/runs/16311197610. This link provides access to the complete testsuite execution details, including error messages, logs, and other relevant information that can aid in debugging the unresolved failures.
Conclusion and Recommendations
The Binutils testsuite status for commit a80775c9278de10223c8db54b8da7a31cdfa0567 reveals a significant number of unresolved failures, particularly in the RISC-V architectures (rv32gc and rv64gc) with the newlib C library. The gcc and g++ compilers are the most affected, while gfortran appears to be stable in these configurations.
It is crucial to prioritize the investigation of these unresolved failures. The high failure rates in the newlib environments suggest potential issues in the compiler's interaction with the library or in the library itself. Further analysis should focus on:
- Debugging gcc and g++: Identify the root causes of the failures in the newlib configurations. This may involve examining the generated assembly code, compiler optimizations, and interactions with the newlib API.
- Analyzing newlib: Investigate potential issues within the newlib library, particularly those related to the RISC-V architecture. This includes reviewing the library's implementation of standard C and C++ functions and its compatibility with the RISC-V ABI.
- Examining the medlow code model and multilib setup: Determine if the medlow code model or the multilib setup are contributing to the failures. This may involve testing with different code models and library configurations.
- Reviewing the testsuite: Ensure that the testsuite is comprehensive and accurately reflects the expected behavior of the Binutils tools. This includes adding new test cases to cover potential corner cases and edge scenarios.
By addressing these unresolved failures, the stability and reliability of Binutils can be significantly improved, especially for RISC-V targets and embedded systems that rely on newlib. The associated run link provides a valuable resource for developers to delve deeper into the issues and work towards effective solutions.
