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make sure we always copy the image name in ImageCache

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This commit is contained in:
trodrigues 2023-12-09 19:12:53 -06:00
parent 15f1b6b0b4
commit ab1ec3f01c
1 changed files with 33 additions and 22 deletions
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55
public/client/TracyCallstack.cpp
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@ -107,12 +107,9 @@ class ImageCache
public:
struct ImageEntry
{
ImageEntry( void* startAddress, void* endAddress, const char* name )
: m_startAddress( startAddress ), m_endAddress( endAddress ), m_name( name ) {}
void* m_startAddress;
void* m_endAddress;
const char* m_name;
void* m_startAddress = nullptr;
void* m_endAddress = nullptr;
char* m_name = nullptr;
};
ImageCache()
@ -125,10 +122,10 @@ public:
~ImageCache()
{
Clear();
m_images->~FastVector<ImageEntry>();
tracy_free( m_images );
tracy_free( m_imageName );
}
const ImageEntry* GetImageForAddress( void* address )
@ -145,7 +142,6 @@ public:
private:
tracy::FastVector<ImageEntry>* m_images;
char* m_imageName = nullptr;
static int Callback( struct dl_phdr_info* info, size_t size, void* data )
{
@ -158,25 +154,30 @@ private:
image->m_endAddress = reinterpret_cast<void*>( info->dlpi_addr +
info->dlpi_phdr[info->dlpi_phnum - 1].p_vaddr + info->dlpi_phdr[info->dlpi_phnum - 1].p_memsz);
// the base executable name isn't provided when iterating with dl_iterate_phdr,
// so we must get it in an alternative way and cache it
const char* imageName = nullptr;
// the base executable name isn't provided when iterating with dl_iterate_phdr, get it with dladdr()
if( info->dlpi_name && info->dlpi_name[0] != '\0' )
{
image->m_name = info->dlpi_name;
imageName = info->dlpi_name;
}
else
{
if( !cache->m_imageName )
Dl_info dlInfo;
if( dladdr( (void *)info->dlpi_addr, &dlInfo ) )
{
Dl_info dlInfo;
if( dladdr( (void *)info->dlpi_addr, &dlInfo ) )
{
size_t sz = strlen( dlInfo.dli_fname ) + 1;
cache->m_imageName = (char*)tracy_malloc( sz );
memcpy( (void*)cache->m_imageName, dlInfo.dli_fname, sz );
}
imageName = dlInfo.dli_fname;
}
image->m_name = cache->m_imageName;
}
if(imageName != nullptr)
{
size_t sz = strlen( imageName ) + 1;
image->m_name = (char*)tracy_malloc( sz );
memcpy( (void*)image->m_name, imageName, sz );
}
else
{
image->m_name = nullptr;
}
return 0;
@ -184,7 +185,7 @@ private:
void Refresh()
{
m_images->clear();
Clear();
dl_iterate_phdr( Callback, this );
@ -203,6 +204,16 @@ private:
}
return nullptr;
}
void Clear()
{
for( ImageEntry& entry : *m_images )
{
tracy_free( entry.m_name );
}
m_images->clear();
}
};
#endif //#ifdef TRACY_USE_IMAGE_CACHE