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	void cleanup_tls(uintptr_t addr, uintptr_t size) {			void cleanup_tls(uintptr_t addr, uintptr_t size) {
	if (size == 0)			if (size == 0)
	return;			return;
	__llvm_libc::syscall_impl(SYS_munmap, addr, size);			__llvm_libc::syscall_impl(SYS_munmap, addr, size);
	}			}

	// Sets the thread pointer to \|val\|. Returns true on success, false on failure.			// Sets the thread pointer to \|val\|. Returns true on success, false on failure.
	static bool set_thread_ptr(uintptr_t val) {			static bool set_thread_ptr(uintptr_t val) {
	return __llvm_libc::syscall_impl(SYS_arch_prctl, ARCH_SET_FS, val) == -1			return __llvm_libc::syscall_impl(SYS_arch_prctl, ARCH_SET_FS, val) != -1;
	? false
	: true;
	}			}

	using InitCallback = void(int, char , char );			using InitCallback = void(int, char , char );
	using FiniCallback = void(void);			using FiniCallback = void(void);

	extern "C" {			extern "C" {
	// These arrays are present in the .init_array and .fini_array sections.			// These arrays are present in the .init_array and .fini_array sections.
	// The symbols are inserted by linker when it sees references to them.			// The symbols are inserted by linker when it sees references to them.
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[libc][NFC] Simplify return value logic in set_thread_ptr()ClosedPublic