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Downport async-profiler no-allocation changes #245

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Merged
jbachorik merged 9 commits into from
Jul 15, 2025
Merged

Downport async-profiler no-allocation changes #245

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a51b652
v0
zhengyu123 Jul 10, 2025
324a5af
v1
zhengyu123 Jul 10, 2025
09afb2d
v2
zhengyu123 Jul 11, 2025
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zhengyu123 Jul 11, 2025
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zhengyu123 Jul 11, 2025
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zhengyu123 Jul 11, 2025
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Cleanup
zhengyu123 Jul 11, 2025
ec3cafc
Merge branch 'main' into zgu/backport-tcmalloc
zhengyu123 Jul 14, 2025
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@zhengyu123
zhengyu123 committed Jul 10, 2025
commit 324a5afb2806809fb929651f325823e419d7f671
11 changes: 3 additions & 8 deletions ddprof-lib/src/main/cpp/symbols_linux.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -496,7 +496,6 @@ bool Symbols::_libs_limit_reported = false;
static std::unordered_set<u64> _parsed_inodes;

void Symbols::clearParsingCaches() {
_parsed_libraries.clear();
_parsed_inodes.clear();
}

Expand Down Expand Up @@ -573,11 +572,6 @@ static void collectSharedLibraries(std::unordered_map<u64, SharedLibrary>& libs,
continue; // all shared libraries have inode, except vDSO
}

int count = array->count();
if (count >= MAX_NATIVE_LIBS) {
break;
}

const char* map_start = map.addr();
const char *map_end = map.end();
if (inode != last_inode && map.offs() == 0) {
Expand All @@ -598,8 +592,9 @@ static void collectSharedLibraries(std::unordered_map<u64, SharedLibrary>& libs,
}
}

free(str);
fclose(f);
free(str);
fclose(f);
}
}

void Symbols::parseLibraries(CodeCacheArray *array, bool kernel_symbols) {
Expand Down