thread_local.h

/*
* Copyright (c) 2026 Raspberry Pi (Trading) Ltd.
 *
 * SPDX-License-Identifier: BSD-3-Clause
 */
 
#ifndef _PICO_THREAD_LOCAL_H
#define _PICO_THREAD_LOCAL_H
 
#include <picotls.h>
 
// PICO_CONFIG: PICO_THREAD_LOCAL_CORE1_REINITIALIZE, Whether re-initializing core 1 should reset its thread local variables. A tiny space-saving can be achieved by disabling this support if not needed, type=bool, default=1, advanced=true, group=pico_thread_local
// PICO_CONFIG: PICO_THREAD_LOCAL_PROVIDE_INIT_TLS, Whether pico_thread_local should provide its own implementation of _init_tls, type=bool, default=1 for non-picolibc and 0 for picolibc, advanced=true, group=pico_thread_local
// PICO_CONFIG: PICO_THREAD_LOCAL_PROVIDE_SET_TLS, Whether pico_thread_local should provide its own implementation of _set_tls, type=bool, default=1, advanced=true, group=pico_thread_local
 
#if !defined(PICO_THREAD_LOCAL_CORE1_REINITIALIZE) && LIB_PICO_MULTICORE
#define PICO_THREAD_LOCAL_CORE1_REINITIALIZE 1
#endif
 
#if !PICO_THREAD_LOCAL_MODE_NONE
#ifndef PICO_THREAD_LOCAL_PROVIDE_INIT_TLS
#ifndef PICOLIBC_TLS // this provides the function, and frankly in that case we don't expect emutls - is that fair tho?
#define PICO_THREAD_LOCAL_PROVIDE_INIT_TLS 1
#endif
#endif
 
#ifndef PICO_THREAD_LOCAL_PROVIDE_SET_TLS
#define PICO_THREAD_LOCAL_PROVIDE_SET_TLS 1
#endif
#endif
 
#if PICO_THREAD_LOCAL_SUPPORT_THREAD_POINTER
// auto-select THREAD_POINTER type if not provided
#if !PICO_THREAD_LOCAL_THREAD_POINTER_VIA_ARM_EABI && !PICO_THREAD_LOCAL_THREAD_POINTER_VIA_RISCV_REG
#if __riscv || PICO_THREAD_LOCAL_THREAD_POINTER_RISCV_REG_CONFIRMED
#define PICO_THREAD_LOCAL_THREAD_POINTER_VIA_RISCV_REG 1
#else
#define PICO_THREAD_LOCAL_THREAD_POINTER_VIA_ARM_EABI 1
#endif
#endif
#endif
 
#endif