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Implement getCallStackFast/Exact for fast call-stack backtrace.

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This commit is contained in:
Бранимир Караџић
2025-09-27 12:51:02 -07:00
parent 59d9249854
commit c8128850f8
9 changed files with 908 additions and 69 deletions
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18
include/bx/debug.h
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@@ -49,7 +49,7 @@ namespace bx
///
WriterI* getDebugOut();
/// Capture current callstack.
/// Capture current callstack fast.
///
/// @param[in] _skip Skip top N stack frames.
/// @param[in] _max Maximum frame to capture.
@@ -57,7 +57,17 @@ namespace bx
///
/// @returns Number of stack frames captured.
///
uint32_t getCallStack(uint32_t _skip, uint32_t _max, uintptr_t* _outStack);
uint32_t getCallStackFast(uint32_t _skip, uint32_t _max, uintptr_t* _outStack);
/// Capture current callstack with slower but more accurate method.
///
/// @param[in] _skip Skip top N stack frames.
/// @param[in] _max Maximum frame to capture.
/// @param[out] _outStack Stack frames array. Must be at least `_max` elements.
///
/// @returns Number of stack frames captured.
///
uint32_t getCallStackExact(uint32_t _skip, uint32_t _max, uintptr_t* _outStack);
/// Write callstack.
///
@@ -68,9 +78,9 @@ namespace bx
///
/// @returns Number of bytes writen to `_writer`.
///
int32_t writeCallstack(WriterI* _writer, uintptr_t* _stack, uint32_t _num, Error* _err);
int32_t writeCallstack(WriterI* _writer, const uintptr_t* _stack, uint32_t _num, Error* _err);
/// Capture call stack, and write it to debug output.
/// Capture call stack with `bx::getCallStackExact`, and write it to debug output.
///
/// @param[in] _skip Skip top N stack frames.
///

4
include/bx/filepath.h
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@@ -60,6 +60,10 @@ namespace bx
///
FilePath(const StringView& _str);
/// Assign file path from string.
///
FilePath& operator=(const char* _rhs);
/// Assign file path from string.
///
FilePath& operator=(const StringView& _rhs);

19
include/bx/inline/string.inl
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@@ -187,6 +187,25 @@ namespace bx
return m_0terminated;
}
inline bool operator==(const StringView& _lhs, const StringView& _rhs)
{
return 0 == strCmp(_lhs, _rhs);
}
inline bool overlap(const StringView& _a, const StringView& _b)
{
return _a.getTerm() > _b.getPtr()
&& _b.getTerm() > _a.getPtr()
;
}
inline bool contain(const StringView& _a, const StringView& _b)
{
return _a.getPtr() <= _b.getPtr()
&& _a.getTerm() >= _b.getTerm()
;
}
template<uint16_t MaxCapacityT>
inline FixedStringT<MaxCapacityT>::FixedStringT()
: m_len(0)

9
include/bx/string.h
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@@ -137,6 +137,15 @@ namespace bx
bool m_0terminated;
};
/// Compare two string views.
bool operator==(const StringView& _lhs, const StringView& _rhs);
/// Returns true if two string views overlap.
bool overlap(const StringView& _a, const StringView& _b);
/// Returns true if string view `_a` contains string view `_b`.
bool contain(const StringView& _a, const StringView& _b);
/// Fixed capacity string.
///
template<uint16_t MaxCapacityT>