hujun260 opened a new pull request, #18145:
URL: https://github.com/apache/nuttx/pull/18145
#### Summary
This pull request adds support for the SYSCALL_HOOKS architecture capability
to the TriCore platform. SYSCALL_HOOKS allows the system to intercept and hook
system calls at runtime, enabling advanced debugging, tracing, and profiling
capabilities for applications running on TriCore processors.
#### Changes Made
- Enabled `ARCH_HAVE_SYSCALL_HOOKS` capability flag in TriCore architecture
configuration
- Single line change in `arch/Kconfig` to enable the syscall hooks feature
#### Impact
- **Functionality**: Enables syscall hooking infrastructure for TriCore
platform
- **Debugging**: Allows runtime monitoring and instrumentation of system
calls
- **Performance**: No performance impact - feature is optional and only used
when explicitly configured
- **Compatibility**: Fully backward compatible, existing configurations
unaffected
#### Technical Details
**What are SYSCALL_HOOKS?**
- A mechanism for intercepting and modifying system call execution
- Useful for implementing system call tracing, profiling, and security
monitoring
- Already supported by other NuttX architectures (ARM, RISC-V, etc.)
**Why add to TriCore?**
- Enables feature parity with other supported architectures
- Allows TriCore applications to use advanced debugging and profiling tools
- Supports system call instrumentation for performance analysis
#### Testing Procedures
1. **Build Tests**:
- Verify TriCore architecture builds successfully with
ARCH_HAVE_SYSCALL_HOOKS enabled
- Test both with and without syscall hooks feature configured
2. **Functional Tests** (if applicable):
- Configure CONFIG_SYSCALL_HOOKS and test system call interception
- Verify system calls execute correctly through hooked path
- Test profiling/tracing tools that depend on syscall hooks
3. **Compatibility Tests**:
- Verify existing TriCore applications run unchanged
- Confirm no regression in system call performance
#### Verification Checklist
- [x] Code builds without warnings or errors
- [x] Configuration flag correctly enabled in arch/Kconfig
- [x] No functional changes to existing TriCore code
- [x] Feature aligns with other NuttX architecture implementations
- [x] Documentation comment explains purpose of change
- [x] Backward compatible with existing configurations
#### Related Changes
This change aligns TriCore support with feature capabilities already present
in:
- ARM architectures (arm64, cortex-a, cortex-m, cortex-r)
- RISC-V
- x86_64
- Other mature NuttX platforms
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