diff options
author | nat-goodspeed <nat@lindenlab.com> | 2024-09-23 18:23:56 -0400 |
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committer | GitHub <noreply@github.com> | 2024-09-23 18:23:56 -0400 |
commit | 9036e4582cec1893016bd692293ec1c0135f7112 (patch) | |
tree | f1dabff03453d87a78257d872acddb8f86f4da9c /indra/llcommon/llexception.cpp | |
parent | 9289b96de48e0a3f57819ca173c5d5d51ad25c56 (diff) | |
parent | 74badfcfb07733214cbe5aa5ae02bd413f8465a2 (diff) |
Merge pull request #2652 from secondlife/lua-merge-dev2
Merge develop into release/luau-scripting
Diffstat (limited to 'indra/llcommon/llexception.cpp')
-rw-r--r-- | indra/llcommon/llexception.cpp | 41 |
1 files changed, 32 insertions, 9 deletions
diff --git a/indra/llcommon/llexception.cpp b/indra/llcommon/llexception.cpp index c0154a569f..0a2f2ab607 100644 --- a/indra/llcommon/llexception.cpp +++ b/indra/llcommon/llexception.cpp @@ -15,6 +15,8 @@ #include "llexception.h" // STL headers // std headers +#include <iomanip> +#include <sstream> #include <typeinfo> // external library headers #include <boost/exception/diagnostic_information.hpp> @@ -29,7 +31,6 @@ // On Windows, header-only implementation causes macro collisions -- use // prebuilt library #define BOOST_STACKTRACE_LINK -#include <excpt.h> #endif // LL_WINDOWS #include <boost/stacktrace.hpp> @@ -94,25 +95,47 @@ void annotate_exception_(boost::exception& exc) // For windows SEH exception handling we sometimes need a filter that will // separate C++ exceptions from C SEH exceptions -static const U32 STATUS_MSC_EXCEPTION = 0xE06D7363; // compiler specific +static constexpr U32 STATUS_MSC_EXCEPTION = 0xE06D7363; // compiler specific +static constexpr U32 STATUS_STACK_FULL = 0xC00000FD; -U32 msc_exception_filter(U32 code, struct _EXCEPTION_POINTERS *exception_infop) +void LL::seh::fill_stacktrace(std::string& stacktrace, U32 code) { - const auto stack = to_string(boost::stacktrace::stacktrace()); - LL_WARNS() << "SEH Exception handled (that probably shouldn't be): Code " << code - << "\n Stack trace: \n" - << stack << LL_ENDL; + // Sadly, despite its diagnostic importance, trying to capture a + // stacktrace when the stack is already blown only terminates us faster. + if (code == STATUS_STACK_FULL) + { + stacktrace = "(stack overflow, no traceback)"; + } + else + { + stacktrace = to_string(boost::stacktrace::stacktrace()); + } +} +U32 LL::seh::common_filter(U32 code, struct _EXCEPTION_POINTERS*) +{ if (code == STATUS_MSC_EXCEPTION) { - // C++ exception, go on + // C++ exception, don't stop at this handler return EXCEPTION_CONTINUE_SEARCH; } else { - // handle it + // This is a non-C++ exception, e.g. hardware check. + // Pass control into the handler block. return EXCEPTION_EXECUTE_HANDLER; } } +void LL::seh::rethrow(U32 code, const std::string& stacktrace) +{ + std::ostringstream out; + out << "Windows exception 0x" << std::hex << code; + if (! stacktrace.empty()) + { + out << '\n' << stacktrace; + } + LLTHROW(Windows_SEH_exception(out.str())); +} + #endif //LL_WINDOWS |