[compiler-rt] [compiler-rt][fuzzer] implements SetThreadName for fuchsia. (PR #99953)

[David CARLIER via llvm-commits]

https://github.com/devnexen updated https://github.com/llvm/llvm-project/pull/99953

>From 0f50c0ef24ebb8efe93ce291ed1dbb2856eda972 Mon Sep 17 00:00:00 2001
From: David Carlier <devnexen at gmail.com>
Date: Mon, 22 Jul 2024 22:19:43 +0100
Subject: [PATCH] [compiler-rt][fuzzer] implements SetThreadName for fuchsia.

---
 compiler-rt/lib/fuzzer/FuzzerUtilFuchsia.cpp | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/compiler-rt/lib/fuzzer/FuzzerUtilFuchsia.cpp b/compiler-rt/lib/fuzzer/FuzzerUtilFuchsia.cpp
index fe79e1908d602..31b99cbb797e1 100644
--- a/compiler-rt/lib/fuzzer/FuzzerUtilFuchsia.cpp
+++ b/compiler-rt/lib/fuzzer/FuzzerUtilFuchsia.cpp
@@ -607,7 +607,12 @@ size_t PageSize() {
 }
 
 void SetThreadName(std::thread &thread, const std::string &name) {
-  // TODO ?
+  if (name.size() > 31)
+    name.resize(31);
+  zx_status_t s;
+  if ((s = zx_object_set_property(thread.native_handle(), ZX_PROP_NAME,
+                                  name.c_str(), name.size())) != ZX_OK)
+    Printf("SetThreadName for name %s failed: %d", name.c_str(), s);
 }
 
 } // namespace fuzzer