citra: Migrate to tracy profiler from Microprofile

externals/tracy/public/client/TracyCallstack.hpp

@@ -0,0 +1,153 @@
+#ifndef __TRACYCALLSTACK_HPP__
+#define __TRACYCALLSTACK_HPP__
+
+#include "../common/TracyApi.h"
+#include "../common/TracyForceInline.hpp"
+#include "TracyCallstack.h"
+
+#if TRACY_HAS_CALLSTACK == 2 || TRACY_HAS_CALLSTACK == 5
+#  include <unwind.h>
+#elif TRACY_HAS_CALLSTACK >= 3
+#  ifdef TRACY_LIBUNWIND_BACKTRACE
+     // libunwind is, in general, significantly faster than execinfo based backtraces
+#    define UNW_LOCAL_ONLY
+#    include <libunwind.h>
+#  else
+#    include <execinfo.h>
+#  endif
+#endif
+
+#ifndef TRACY_HAS_CALLSTACK
+
+namespace tracy
+{
+static tracy_force_inline void* Callstack( int depth ) { return nullptr; }
+}
+
+#else
+
+#ifdef TRACY_DEBUGINFOD
+#  include <elfutils/debuginfod.h>
+#endif
+
+#include <assert.h>
+#include <stdint.h>
+
+#include "../common/TracyAlloc.hpp"
+
+namespace tracy
+{
+
+struct CallstackSymbolData
+{
+    const char* file;
+    uint32_t line;
+    bool needFree;
+    uint64_t symAddr;
+};
+
+struct CallstackEntry
+{
+    const char* name;
+    const char* file;
+    uint32_t line;
+    uint32_t symLen;
+    uint64_t symAddr;
+};
+
+struct CallstackEntryData
+{
+    const CallstackEntry* data;
+    uint8_t size;
+    const char* imageName;
+};
+
+CallstackSymbolData DecodeSymbolAddress( uint64_t ptr );
+const char* DecodeCallstackPtrFast( uint64_t ptr );
+CallstackEntryData DecodeCallstackPtr( uint64_t ptr );
+void InitCallstack();
+void InitCallstackCritical();
+void EndCallstack();
+const char* GetKernelModulePath( uint64_t addr );
+
+#ifdef TRACY_DEBUGINFOD
+const uint8_t* GetBuildIdForImage( const char* image, size_t& size );
+debuginfod_client* GetDebuginfodClient();
+#endif
+
+#if TRACY_HAS_CALLSTACK == 1
+
+extern "C"
+{
+    typedef unsigned long (__stdcall *___tracy_t_RtlWalkFrameChain)( void**, unsigned long, unsigned long );
+    TRACY_API extern ___tracy_t_RtlWalkFrameChain ___tracy_RtlWalkFrameChain;
+}
+
+static tracy_force_inline void* Callstack( int depth )
+{
+    assert( depth >= 1 && depth < 63 );
+    auto trace = (uintptr_t*)tracy_malloc( ( 1 + depth ) * sizeof( uintptr_t ) );
+    const auto num = ___tracy_RtlWalkFrameChain( (void**)( trace + 1 ), depth, 0 );
+    *trace = num;
+    return trace;
+}
+
+#elif TRACY_HAS_CALLSTACK == 2 || TRACY_HAS_CALLSTACK == 5
+
+struct BacktraceState
+{
+    void** current;
+    void** end;
+};
+
+static _Unwind_Reason_Code tracy_unwind_callback( struct _Unwind_Context* ctx, void* arg )
+{
+    auto state = (BacktraceState*)arg;
+    uintptr_t pc = _Unwind_GetIP( ctx );
+    if( pc )
+    {
+        if( state->current == state->end ) return _URC_END_OF_STACK;
+        *state->current++ = (void*)pc;
+    }
+    return _URC_NO_REASON;
+}
+
+static tracy_force_inline void* Callstack( int depth )
+{
+    assert( depth >= 1 && depth < 63 );
+
+    auto trace = (uintptr_t*)tracy_malloc( ( 1 + depth ) * sizeof( uintptr_t ) );
+    BacktraceState state = { (void**)(trace+1), (void**)(trace+1+depth) };
+    _Unwind_Backtrace( tracy_unwind_callback, &state );
+
+    *trace = (uintptr_t*)state.current - trace + 1;
+
+    return trace;
+}
+
+#elif TRACY_HAS_CALLSTACK == 3 || TRACY_HAS_CALLSTACK == 4 || TRACY_HAS_CALLSTACK == 6
+
+static tracy_force_inline void* Callstack( int depth )
+{
+    assert( depth >= 1 );
+
+    auto trace = (uintptr_t*)tracy_malloc( ( 1 + (size_t)depth ) * sizeof( uintptr_t ) );
+
+#ifdef TRACY_LIBUNWIND_BACKTRACE
+    size_t num =  unw_backtrace( (void**)(trace+1), depth );
+#else
+    const auto num = (size_t)backtrace( (void**)(trace+1), depth );
+#endif
+
+    *trace = num;
+
+    return trace;
+}
+
+#endif
+
+}
+
+#endif
+
+#endif