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Penulis	SHA1	Pesan	Tanggal
Mark Meserve	bf49039005	[rocprofiler-sdk][rocprofiler-register] Initial Attachment Support (#316) ... * attach: milestone: API tracing - This pairs with another commit in rocprofiler-sdk to fully function - Add ptrace entry points for tool attachment - API tracing works at this commit - Queue tracing not supported yet * attach: cleanup - Remove hardcode for loading of tool library - Make invoke registration functions public again * attach: proxy queue first draft - Adds ability to trace with queues during attachment - Must be paired with updated rocprofiler-sdk * attach: prestore overhaul - Must be paired with commit in rocprofiler-sdk * attach: add dispatch table rework - Register will load the prestore library and provide entrypoints to sdk * attach: formatting and cleanup * attach: revise dispatch table scheme * attach: formatting * attach: milestone: API tracing - This change must be paired with a change in rocprofiler-register to fully function. - API tracing works at this commit - Queue tracing not supported yet * attach: cleanup and comments * attach: Formatting and crash fixes * attach: add attach duration - Add option attach-duration-msec for attachment * Formatting + sglang hang fix via signal handling * Changed FATAL_IF to DFATAL_IF for scratch_memory due to persistent crash when iterating queues * attach: proxy queue first draft - Adds ability to trace with queues during attachment - Must be paired with updated rocprofiler-register * Allow null agents for scratch output * attach: improve queue library interface - Significant changes to force exported interfaces back to C - Fixes bug with unknown agents at attachment - Code objects' names may still be incorrect * attach: add code_object support - Kernel traces will now have names and all other information for launches - Add capture of hsa_executable to the queue library - Various logging improvements * attach: rename queue library to prestore * attach: prestore overhaul - Must be paired with commit from rocprofiler-register - Massive overhaul of code organization in prestore library - Separates registrations for different object types - Sets up future changes for initialization * attach: add prestore dispatch table - Removes linkage to prestore library from sdk * attach: cleanup * attach: formatting * attach: fix input prompt not appearing * attach: fix component name in cmake * attach: revert change to export level * Make prestore API public * attach: update sdk attachment library WIP - This commit is NONFUNCTIONAL - Changes around structure to remove classes - Seperate C linkage where needed - Still needs updates to register for correct usage * attach: update register with dispatch table WIP - This commit is NONFUNCTIONAL - Changes rocprofiler_register to handle dispatch table from attach library. - Still needs changes in SDK with dispatch table usage * attach: dispatch table wip - This commit is NONFUNCTIONAL * attach: move attach component into core * attach: rename to rocprofv3-attach * attach: add callbacks for new queues and code objects * attach: finish dispatch table implementation - Fixes kernel tracing * attach: add cmake variable for attachment support * feat: Add --attach alias for rocprofv3 with comprehensive attachment tests - Add `--attach` as an alias to existing `-p/--pid` functionality in rocprofv3.py - Create comprehensive attachment test suite with CSV and JSON output validation: - New attachment-test application for testing dynamic profiling scenarios - Unified test script supporting both CSV and JSON output formats - Pytest-based validation for kernel traces, memory copies, HSA API calls, and agent info - Add CMake integration for automated attachment testing - Support parameterized output directory and filename specification - Implement proper environment setup for attachment queue registration Tests verify successful attachment to running processes and capture of: - Kernel dispatch traces with workgroup/grid dimensions - Memory copy operations (H2D/D2H) with size validation - HSA API call traces across multiple domains - GPU/CPU agent information and capabilities * Documentation Update * attach: make attach script callable * Added ROCPROFILER_REGISTER_ATTACHMENT_TOOL_LIB to remove hardcoded name * attach: revert metrics library path changes * Generic Attachment in Register (#942) Remove tool references in register * Add second param to attach call in rocprof register * Add experimental reattachment support for ROCprofiler-SDK This commit introduces experimental reattachment functionality allowing tools to dynamically reattach to running processes with comprehensive design changes to support multiple attach/detach cycles: **Core Reattachment API:** - Add rocprofiler_tool_configure_result_experimental_t with tool_reattach/tool_detach callbacks - Add rocprofiler_call_client_reattach and rocprofiler_call_client_detach C exports - Implement reattachment tracking in rocprofiler_register_attach to differentiate initial attachment from reattachment cycles - Add rocprofiler_register_invoke_reattach for handling reattachment requests **Design Changes - Registration System Flow:** The registration system now supports a dual-path initialization: 1. Initial Attachment Flow: - rocprofiler_register_attach() -> rocprofiler_register_invoke_all_registrations() - Full tool initialization with complete context setup - Sets prev_attached atomic flag to track state 2. Reattachment Flow: - rocprofiler_register_attach() detects prev_attached=true -> rocprofiler_register_invoke_reattach() - Bypasses full re-initialization, calls client reattach callbacks instead - Preserves existing contexts and buffers, only reactivates profiling services **Design Changes - Tool Library Loading:** Enhanced rocprofiler-register library loading with function pointer resolution: - Extended rocp_set_api_table_data_t tuple to include reattach/detach function pointers - Automatic symbol resolution for rocprofiler_call_client_reattach/detach functions - Support for both LD_PRELOAD and dlopen scenarios with consistent callback availability **Design Changes - Context Management:** Introduced dual context systems for attachment scenarios: - get_contexts() - Original contexts for standard tool initialization - get_attach_contexts() - Separate context map for attachment-specific lifecycle - attach_init() - Creates contexts for ALL buffer tracing services using existing buffers - attach_start() - Selectively starts contexts based on configuration options - attach_detach() - Cleanly stops and destroys attachment contexts **Design Changes - Buffer Management:** Added reset_tmp_file_buffer() template for clean reattachment state: - Properly closes and removes old temporary files - Deletes existing file_buffer instances to prevent stale file position tracking - Creates fresh file_buffer instances for clean reattachment cycles - Addresses core issue where file position metadata becomes stale between cycles **Design Changes - Environment Variable Injection:** Added ROCP_REGISTERED_TOOL_ATTACH environment variable: - Distinguishes attachment-loaded tools from LD_PRELOAD scenarios - Enables registration system to apply attachment-specific logic - Helps tools adapt behavior for attachment vs standard initialization **Attachment Context Management:** - Add attach_init/attach_start/attach_detach functions for dynamic context lifecycle - Add reset_tmp_file_buffer template for clean reattachment state management - Implement get_attach_contexts() for tracking active attachment contexts **Test Infrastructure:** - Add projects/rocprofiler-sdk/tests/rocprofv3/reattach/ comprehensive test suite - Include reattachment test scripts with unified attachment/detachment cycles - Add validate.py with trace data validation for kernel, memory copy, HSA API, and agent info - Add conftest.py for JSON and CSV data loading utilities **Configuration Updates:** - Update CMakeLists.txt to include reattachment tests in build system - Add environment variable ROCP_REGISTERED_TOOL_ATTACH for attachment state tracking - Enhance rocprofiler-register library loading with reattach/detach function resolution **Flow Impact Analysis:** This design enables robust multi-cycle attachment by: 1. Preventing duplicate initialization on reattachment 2. Maintaining separate context lifecycles for attachment vs standard operation 3. Ensuring clean temporary file state between attachment cycles 4. Providing tools with explicit reattach/detach callback hooks 5. Supporting both programmatic and environment-based tool configuration The experimental nature allows for iteration on the API while establishing the foundation for production-ready dynamic profiling capabilities. * Fix misc clang-tidy warnings/errors * CMake Option and Environment Variable Updates - CMake: ROCPROFILER_REGISTER_ALWAYS_SUPPORT_ATTACH -> ROCPROFILER_REGISTER_BUILD_DEFAULT_ATTACHMENT - Env: ROCPROFILER_REGISTER_ATTACHMENT_ENABLED -> * Source reorganization * Formatting + new lines at EOF * Fix flake8 F841: local variable is assigned to but never used * Update attachment test - get rid of 5 second start delay - add roctx * Rework implementation - Remove rocprofiler_tool_configure_result_experimental_t in lieu of rocprofiler_configure_attach - Add <rocprofiler-sdk/experimental/registration.h> - TODO: Update process_attachment.rst * Handle re-attachment options - inherit options from previous attachment - check previous options do not modify data collection services * Fix support for tools w/o rocprofiler_configure_attach - fix segfault when rocprofiler_configure_attach does not exist - fix naming convention for functions accepting attach dispatch table - cleanup rocprofiler_configure_attach implementation in rocprofv3 tool * attach: remove unknown agent handling - Change was from earlier commit, no longer needed * attach: add error for attaching without library loaded * attach: revise version numbering * attach: register header revisions * attach: clang format register * attach: formatting * attach: fix build failure - Remove cross dependency into rocprofiler-sdk, fixes build on some systems * attach: revise register library detection * Update rocprofiler-register and attach library - formatting - proper signature of register_functor for rocprofiler-sdk-attach library callback - remove get_dispatch_registration_table() * Bump rocprofiler-register version to 0.6.0 + AnyNewerVersion * Fix output support for rocprofiler-sdk-tool * Fix formatting * Fix clang tidy errors * Misc rocprofiler-sdk-attach fixes * attach: add sigint handling to attach python * tool README.md formatting Co-authored-by: Jonathan R. Madsen <jrmadsen@users.noreply.github.com> * Fix buffered output issue * attach: add errors for tool attach * CI Fixes * Rework tests * attach: improve library loading in rocprofv3 attach * formatting * Update tests to use pytest framework * Fix test_attachment_hsa_api_trace * attach: catch ctypes exceptions * attach: fix leak in registration * attach: fix sanitizer tests * attach: fix sanitizer tests further * attach: disable attach asan tests * attach: disable ubsan test * attach: fix permissions in installed test package * attach: formatting --------- Co-authored-by: Ian Trowbridge <Ian.Trowbridge@amd.com> Co-authored-by: Tim Gu <Tim.Gu@amd.com> Co-authored-by: Claude Code <claude@anthropic.com> Co-authored-by: Benjamin Welton <bwelton@amd.com> Co-authored-by: Jonathan R. Madsen <jonathanrmadsen@gmail.com> Co-authored-by: Jonathan R. Madsen <jrmadsen@users.noreply.github.com> Co-authored-by: Benjamin Welton <bewelton@amd.com>	2025-09-18 18:10:45 -05:00