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| author | Copilot <198982749+Copilot@users.noreply.github.com> | 2025-07-21 09:30:24 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2025-07-21 16:30:24 +0000 |
| commit | 368ddbb7b99dfb939d20f53c35d05b2b4758bd64 (patch) | |
| tree | 25f86c54c3949a5fe4dd11c704d67e63a6e7d4e3 /source/core | |
| parent | 7343c7110c38b3ce71d679222dccf438190865b0 (diff) | |
Add utility to trace creation of problematic IRInsts to assist LLM in debugging (#7820)
* Initial plan
* Add SLANG_DEBUG_IR_BREAK environment variable support
Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com>
* Apply code formatting to SLANG_DEBUG_IR_BREAK implementation
Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com>
* Improve stack trace debugging with -rdynamic flag and backtrace_symbols
Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com>
* Address PR feedback: use PlatformUtil::getEnvironmentVariable, remove -rdynamic flag, and delete fallback branch
Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com>
* Address PR feedback: simplify env var parsing, move backtrace to PlatformUtil, use #if for SLANG_LINUX_FAMILY
Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com>
* Address PR feedback: remove unneeded include, make backtrace() more generic by removing uid parameter
Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com>
* Fix and clone source tracking.
* Add python script to dump traces.
* Update instructions.
* Batch calls to addr2line
* Cleanup claude instructions.
* update claude action.
* Remove duplicated build instructions from claude.yml workflow
Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com>
* fix build error.
* Fix build errors
---------
Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: csyonghe <2652293+csyonghe@users.noreply.github.com>
Co-authored-by: Yong He <yonghe@outlook.com>
Co-authored-by: Gangzheng Tong <tonggangzheng@gmail.com>
Diffstat (limited to 'source/core')
| -rw-r--r-- | source/core/slang-platform.cpp | 26 | ||||
| -rw-r--r-- | source/core/slang-platform.h | 4 |
2 files changed, 30 insertions, 0 deletions
diff --git a/source/core/slang-platform.cpp b/source/core/slang-platform.cpp index 2c2bdd25e..aab1f3044 100644 --- a/source/core/slang-platform.cpp +++ b/source/core/slang-platform.cpp @@ -15,6 +15,11 @@ #include <dlfcn.h> #endif + +#if SLANG_LINUX_FAMILY +#include <execinfo.h> +#endif + namespace Slang { // SharedLibrary @@ -331,4 +336,25 @@ static const PlatformFlags s_familyFlags[int(PlatformFamily::CountOf)] = { #endif } +/* static */ void PlatformUtil::backtrace() +{ +#if SLANG_LINUX_FAMILY + // Print stack trace for debugging assistance + void* stackTrace[64]; + int stackDepth = ::backtrace(stackTrace, 64); + char** symbols = ::backtrace_symbols(stackTrace, stackDepth); + if (symbols) + { + for (int i = 0; i < stackDepth; ++i) + { + fprintf(stdout, "%s\n", symbols[i]); + } + free(symbols); + } + fprintf(stdout, "\n"); +#else + fprintf(stdout, "Stack trace not available on this platform.\n"); +#endif +} + } // namespace Slang diff --git a/source/core/slang-platform.h b/source/core/slang-platform.h index 0b97aca6d..04559cbcf 100644 --- a/source/core/slang-platform.h +++ b/source/core/slang-platform.h @@ -150,6 +150,10 @@ struct PlatformUtil /// @param text Text to be displayed in 'debugger output' /// @return SLANG_E_NOT_AVAILABLE if not on this platform, and potentially other errors static SlangResult outputDebugMessage(const char* text); + + /// Print a stack trace to stderr for debugging purposes. + /// Only available on Linux family platforms. + static void backtrace(); }; #ifndef _MSC_VER |