diff options
Diffstat (limited to 'absl/debugging')
| -rw-r--r-- | absl/debugging/internal/demangle.cc | 34 | ||||
| -rw-r--r-- | absl/debugging/stacktrace.h | 30 |
2 files changed, 41 insertions, 23 deletions
diff --git a/absl/debugging/internal/demangle.cc b/absl/debugging/internal/demangle.cc index 52a553fd0585..3809e4960e2c 100644 --- a/absl/debugging/internal/demangle.cc +++ b/absl/debugging/internal/demangle.cc @@ -93,6 +93,8 @@ static const AbbrevPair kOperatorList[] = { }; // List of builtin types from Itanium C++ ABI. +// +// Invariant: only one- or two-character type abbreviations here. static const AbbrevPair kBuiltinTypeList[] = { {"v", "void", 0}, {"w", "wchar_t", 0}, @@ -115,6 +117,16 @@ static const AbbrevPair kBuiltinTypeList[] = { {"e", "long double", 0}, {"g", "__float128", 0}, {"z", "ellipsis", 0}, + + {"De", "decimal128", 0}, // IEEE 754r decimal floating point (128 bits) + {"Dd", "decimal64", 0}, // IEEE 754r decimal floating point (64 bits) + {"Dc", "decltype(auto)", 0}, + {"Da", "auto", 0}, + {"Dn", "std::nullptr_t", 0}, // i.e., decltype(nullptr) + {"Df", "decimal32", 0}, // IEEE 754r decimal floating point (32 bits) + {"Di", "char32_t", 0}, + {"Ds", "char16_t", 0}, + {"Dh", "float16", 0}, // IEEE 754r half-precision float (16 bits) {nullptr, nullptr, 0}, }; @@ -1168,12 +1180,6 @@ static bool ParseType(State *state) { } state->parse_state = copy; - // nullptr_t, i.e. decltype(nullptr). - if (ParseTwoCharToken(state, "Dn")) { - return true; - } - state->parse_state = copy; - if (ParseOneCharToken(state, 'U') && ParseSourceName(state) && ParseType(state)) { return true; @@ -1214,16 +1220,26 @@ static bool ParseCVQualifiers(State *state) { return num_cv_qualifiers > 0; } -// <builtin-type> ::= v, etc. +// <builtin-type> ::= v, etc. # single-character builtin types // ::= u <source-name> +// ::= Dd, etc. # two-character builtin types +// +// Not supported: +// ::= DF <number> _ # _FloatN (N bits) +// static bool ParseBuiltinType(State *state) { ComplexityGuard guard(state); if (guard.IsTooComplex()) return false; const AbbrevPair *p; for (p = kBuiltinTypeList; p->abbrev != nullptr; ++p) { - if (RemainingInput(state)[0] == p->abbrev[0]) { + // Guaranteed only 1- or 2-character strings in kBuiltinTypeList. + if (p->abbrev[1] == '\0') { + if (ParseOneCharToken(state, p->abbrev[0])) { + MaybeAppend(state, p->real_name); + return true; + } + } else if (p->abbrev[2] == '\0' && ParseTwoCharToken(state, p->abbrev)) { MaybeAppend(state, p->real_name); - ++state->parse_state.mangled_idx; return true; } } diff --git a/absl/debugging/stacktrace.h b/absl/debugging/stacktrace.h index 3fc1c03f3e6b..cd8fae76d536 100644 --- a/absl/debugging/stacktrace.h +++ b/absl/debugging/stacktrace.h @@ -36,10 +36,10 @@ namespace absl { // GetStackFrames() // // Records program counter values for up to `max_depth` frames, skipping the -// most recent `skip_count` stack frames, and stores their corresponding values -// and sizes in `results` and `sizes` buffers. (Note that the frame generated -// for the `absl::GetStackFrames()` routine itself is also skipped.) -// routine itself. +// most recent `skip_count` stack frames, stores their corresponding values +// and sizes in `results` and `sizes` buffers, and returns the number of frames +// stored. (Note that the frame generated for the `absl::GetStackFrames()` +// routine itself is also skipped.) // // Example: // @@ -54,8 +54,8 @@ namespace absl { // The current stack frame would consist of three function calls: `bar()`, // `foo()`, and then `main()`; however, since the `GetStackFrames()` call sets // `skip_count` to `1`, it will skip the frame for `bar()`, the most recently -// invoked function call. It will therefore return two program counters and will -// produce values that map to the following function calls: +// invoked function call. It will therefore return 2 and fill `result` with +// program counters within the following functions: // // result[0] foo() // result[1] main() @@ -82,9 +82,10 @@ extern int GetStackFrames(void** result, int* sizes, int max_depth, // // Records program counter values obtained from a signal handler. Records // program counter values for up to `max_depth` frames, skipping the most recent -// `skip_count` stack frames, and stores their corresponding values and sizes in -// `results` and `sizes` buffers. (Note that the frame generated for the -// `absl::GetStackFramesWithContext()` routine itself is also skipped.) +// `skip_count` stack frames, stores their corresponding values and sizes in +// `results` and `sizes` buffers, and returns the number of frames stored. (Note +// that the frame generated for the `absl::GetStackFramesWithContext()` routine +// itself is also skipped.) // // The `uc` parameter, if non-null, should be a pointer to a `ucontext_t` value // passed to a signal handler registered via the `sa_sigaction` field of a @@ -105,8 +106,9 @@ extern int GetStackFramesWithContext(void** result, int* sizes, int max_depth, // GetStackTrace() // // Records program counter values for up to `max_depth` frames, skipping the -// most recent `skip_count` stack frames, and stores their corresponding values -// in `results`. Note that this function is similar to `absl::GetStackFrames()` +// most recent `skip_count` stack frames, stores their corresponding values +// in `results`, and returns the number of frames +// stored. Note that this function is similar to `absl::GetStackFrames()` // except that it returns the stack trace only, and not stack frame sizes. // // Example: @@ -131,9 +133,9 @@ extern int GetStackTrace(void** result, int max_depth, int skip_count); // // Records program counter values obtained from a signal handler. Records // program counter values for up to `max_depth` frames, skipping the most recent -// `skip_count` stack frames, and stores their corresponding values in -// `results`. (Note that the frame generated for the -// `absl::GetStackFramesWithContext()` routine itself is also skipped.) +// `skip_count` stack frames, stores their corresponding values in `results`, +// and returns the number of frames stored. (Note that the frame generated for +// the `absl::GetStackFramesWithContext()` routine itself is also skipped.) // // The `uc` parameter, if non-null, should be a pointer to a `ucontext_t` value // passed to a signal handler registered via the `sa_sigaction` field of a |