newlib: Enable multithread build

stephanosio · stephanosio · commit 6fa5021e5c98 · 2021-06-07T04:38:05.000+09:00
This commit sets `CT_LIBC_NEWLIB_MULTITHREAD=y` and `CT_LIBC_NEWLIB_NANO_MULTITHREAD=y` in order to enable multithread build of newlib (i.e. build without `__SINGLE_THREAD__` defined). This option must be specified to support newlib multithreading in the Zephyr RTOS. When these configs are not set to `y`, `--disable-newlib-multithread` is specified during newlib configuration. For more details, see #343. Signed-off-by: Stephanos Ioannidis <root@stephanos.io>
diff --git a/configs/arc.config b/configs/arc.config
@@ -21,7 +21,7 @@ CT_LIBC_NEWLIB_IO_FLOAT=y
 CT_LIBC_NEWLIB_DISABLE_SUPPLIED_SYSCALLS=y
 CT_LIBC_NEWLIB_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_LITE_EXIT=y
-# CT_LIBC_NEWLIB_MULTITHREAD is not set
+CT_LIBC_NEWLIB_MULTITHREAD=y
 CT_LIBC_NEWLIB_RETARGETABLE_LOCKING=y
 # CT_LIBC_NEWLIB_WIDE_ORIENT is not set
 # CT_LIBC_NEWLIB_NANO_MALLOC is not set
@@ -54,7 +54,7 @@ CT_LIBC_NEWLIB_NANO_ATEXIT_DYNAMIC_ALLOC=y
 CT_LIBC_NEWLIB_NANO_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_NANO_LITE_EXIT=y
 CT_LIBC_NEWLIB_NANO_REENT_SMALL=y
-# CT_LIBC_NEWLIB_NANO_MULTITHREAD is not set
+CT_LIBC_NEWLIB_NANO_MULTITHREAD=y
 CT_LIBC_NEWLIB_NANO_RETARGETABLE_LOCKING=y
 CT_LIBC_NEWLIB_NANO_EXTRA_SECTIONS=y
 # CT_LIBC_NEWLIB_NANO_WIDE_ORIENT is not set
diff --git a/configs/arc64.config b/configs/arc64.config
@@ -21,7 +21,7 @@ CT_LIBC_NEWLIB_IO_FLOAT=y
 CT_LIBC_NEWLIB_DISABLE_SUPPLIED_SYSCALLS=y
 CT_LIBC_NEWLIB_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_LITE_EXIT=y
-# CT_LIBC_NEWLIB_MULTITHREAD is not set
+CT_LIBC_NEWLIB_MULTITHREAD=y
 CT_LIBC_NEWLIB_RETARGETABLE_LOCKING=y
 # CT_LIBC_NEWLIB_WIDE_ORIENT is not set
 # CT_LIBC_NEWLIB_NANO_MALLOC is not set
@@ -50,7 +50,7 @@ CT_LIBC_NEWLIB_NANO_ATEXIT_DYNAMIC_ALLOC=y
 CT_LIBC_NEWLIB_NANO_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_NANO_LITE_EXIT=y
 CT_LIBC_NEWLIB_NANO_REENT_SMALL=y
-# CT_LIBC_NEWLIB_NANO_MULTITHREAD is not set
+CT_LIBC_NEWLIB_NANO_MULTITHREAD=y
 CT_LIBC_NEWLIB_NANO_RETARGETABLE_LOCKING=y
 CT_LIBC_NEWLIB_NANO_EXTRA_SECTIONS=y
 # CT_LIBC_NEWLIB_NANO_WIDE_ORIENT is not set
diff --git a/configs/arm.config b/configs/arm.config
@@ -21,7 +21,7 @@ CT_LIBC_NEWLIB_IO_FLOAT=y
 CT_LIBC_NEWLIB_DISABLE_SUPPLIED_SYSCALLS=y
 CT_LIBC_NEWLIB_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_LITE_EXIT=y
-# CT_LIBC_NEWLIB_MULTITHREAD is not set
+CT_LIBC_NEWLIB_MULTITHREAD=y
 CT_LIBC_NEWLIB_RETARGETABLE_LOCKING=y
 # CT_LIBC_NEWLIB_WIDE_ORIENT is not set
 # CT_LIBC_NEWLIB_NANO_MALLOC is not set
@@ -55,7 +55,7 @@ CT_LIBC_NEWLIB_NANO_ATEXIT_DYNAMIC_ALLOC=y
 CT_LIBC_NEWLIB_NANO_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_NANO_LITE_EXIT=y
 CT_LIBC_NEWLIB_NANO_REENT_SMALL=y
-# CT_LIBC_NEWLIB_NANO_MULTITHREAD is not set
+CT_LIBC_NEWLIB_NANO_MULTITHREAD=y
 CT_LIBC_NEWLIB_NANO_RETARGETABLE_LOCKING=y
 CT_LIBC_NEWLIB_NANO_EXTRA_SECTIONS=y
 # CT_LIBC_NEWLIB_NANO_WIDE_ORIENT is not set
diff --git a/configs/arm64.config b/configs/arm64.config
@@ -21,7 +21,7 @@ CT_LIBC_NEWLIB_IO_FLOAT=y
 CT_LIBC_NEWLIB_DISABLE_SUPPLIED_SYSCALLS=y
 CT_LIBC_NEWLIB_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_LITE_EXIT=y
-# CT_LIBC_NEWLIB_MULTITHREAD is not set
+CT_LIBC_NEWLIB_MULTITHREAD=y
 CT_LIBC_NEWLIB_RETARGETABLE_LOCKING=y
 # CT_LIBC_NEWLIB_WIDE_ORIENT is not set
 # CT_LIBC_NEWLIB_NANO_MALLOC is not set
@@ -55,7 +55,7 @@ CT_LIBC_NEWLIB_NANO_ATEXIT_DYNAMIC_ALLOC=y
 CT_LIBC_NEWLIB_NANO_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_NANO_LITE_EXIT=y
 CT_LIBC_NEWLIB_NANO_REENT_SMALL=y
-# CT_LIBC_NEWLIB_NANO_MULTITHREAD is not set
+CT_LIBC_NEWLIB_NANO_MULTITHREAD=y
 CT_LIBC_NEWLIB_NANO_RETARGETABLE_LOCKING=y
 CT_LIBC_NEWLIB_NANO_EXTRA_SECTIONS=y
 # CT_LIBC_NEWLIB_NANO_WIDE_ORIENT is not set
diff --git a/configs/i586.config b/configs/i586.config
@@ -22,7 +22,7 @@ CT_LIBC_NEWLIB_IO_FLOAT=y
 CT_LIBC_NEWLIB_DISABLE_SUPPLIED_SYSCALLS=y
 CT_LIBC_NEWLIB_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_LITE_EXIT=y
-# CT_LIBC_NEWLIB_MULTITHREAD is not set
+CT_LIBC_NEWLIB_MULTITHREAD=y
 CT_LIBC_NEWLIB_RETARGETABLE_LOCKING=y
 # CT_LIBC_NEWLIB_WIDE_ORIENT is not set
 # CT_LIBC_NEWLIB_NANO_MALLOC is not set
@@ -55,7 +55,7 @@ CT_LIBC_NEWLIB_NANO_ATEXIT_DYNAMIC_ALLOC=y
 CT_LIBC_NEWLIB_NANO_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_NANO_LITE_EXIT=y
 CT_LIBC_NEWLIB_NANO_REENT_SMALL=y
-# CT_LIBC_NEWLIB_NANO_MULTITHREAD is not set
+CT_LIBC_NEWLIB_NANO_MULTITHREAD=y
 CT_LIBC_NEWLIB_NANO_RETARGETABLE_LOCKING=y
 CT_LIBC_NEWLIB_NANO_EXTRA_SECTIONS=y
 # CT_LIBC_NEWLIB_NANO_WIDE_ORIENT is not set
diff --git a/configs/iamcu.config b/configs/iamcu.config
@@ -22,7 +22,7 @@ CT_LIBC_NEWLIB_IO_FLOAT=y
 CT_LIBC_NEWLIB_DISABLE_SUPPLIED_SYSCALLS=y
 CT_LIBC_NEWLIB_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_LITE_EXIT=y
-# CT_LIBC_NEWLIB_MULTITHREAD is not set
+CT_LIBC_NEWLIB_MULTITHREAD=y
 CT_LIBC_NEWLIB_RETARGETABLE_LOCKING=y
 # CT_LIBC_NEWLIB_WIDE_ORIENT is not set
 # CT_LIBC_NEWLIB_NANO_MALLOC is not set
@@ -55,7 +55,7 @@ CT_LIBC_NEWLIB_NANO_ATEXIT_DYNAMIC_ALLOC=y
 CT_LIBC_NEWLIB_NANO_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_NANO_LITE_EXIT=y
 CT_LIBC_NEWLIB_NANO_REENT_SMALL=y
-# CT_LIBC_NEWLIB_NANO_MULTITHREAD is not set
+CT_LIBC_NEWLIB_NANO_MULTITHREAD=y
 CT_LIBC_NEWLIB_NANO_RETARGETABLE_LOCKING=y
 CT_LIBC_NEWLIB_NANO_EXTRA_SECTIONS=y
 # CT_LIBC_NEWLIB_NANO_WIDE_ORIENT is not set
diff --git a/configs/mips.config b/configs/mips.config
@@ -20,7 +20,7 @@ CT_LIBC_NEWLIB_IO_FLOAT=y
 CT_LIBC_NEWLIB_DISABLE_SUPPLIED_SYSCALLS=y
 CT_LIBC_NEWLIB_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_LITE_EXIT=y
-# CT_LIBC_NEWLIB_MULTITHREAD is not set
+CT_LIBC_NEWLIB_MULTITHREAD=y
 CT_LIBC_NEWLIB_RETARGETABLE_LOCKING=y
 # CT_LIBC_NEWLIB_WIDE_ORIENT is not set
 # CT_LIBC_NEWLIB_NANO_MALLOC is not set
@@ -53,7 +53,7 @@ CT_LIBC_NEWLIB_NANO_ATEXIT_DYNAMIC_ALLOC=y
 CT_LIBC_NEWLIB_NANO_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_NANO_LITE_EXIT=y
 CT_LIBC_NEWLIB_NANO_REENT_SMALL=y
-# CT_LIBC_NEWLIB_NANO_MULTITHREAD is not set
+CT_LIBC_NEWLIB_NANO_MULTITHREAD=y
 CT_LIBC_NEWLIB_NANO_RETARGETABLE_LOCKING=y
 CT_LIBC_NEWLIB_NANO_EXTRA_SECTIONS=y
 # CT_LIBC_NEWLIB_NANO_WIDE_ORIENT is not set
diff --git a/configs/nios2.config b/configs/nios2.config
@@ -21,7 +21,7 @@ CT_LIBC_NEWLIB_IO_FLOAT=y
 CT_LIBC_NEWLIB_DISABLE_SUPPLIED_SYSCALLS=y
 CT_LIBC_NEWLIB_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_LITE_EXIT=y
-# CT_LIBC_NEWLIB_MULTITHREAD is not set
+CT_LIBC_NEWLIB_MULTITHREAD=y
 CT_LIBC_NEWLIB_RETARGETABLE_LOCKING=y
 # CT_LIBC_NEWLIB_WIDE_ORIENT is not set
 # CT_LIBC_NEWLIB_NANO_MALLOC is not set
@@ -54,7 +54,7 @@ CT_LIBC_NEWLIB_NANO_ATEXIT_DYNAMIC_ALLOC=y
 CT_LIBC_NEWLIB_NANO_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_NANO_LITE_EXIT=y
 CT_LIBC_NEWLIB_NANO_REENT_SMALL=y
-# CT_LIBC_NEWLIB_NANO_MULTITHREAD is not set
+CT_LIBC_NEWLIB_NANO_MULTITHREAD=y
 CT_LIBC_NEWLIB_NANO_RETARGETABLE_LOCKING=y
 CT_LIBC_NEWLIB_NANO_EXTRA_SECTIONS=y
 # CT_LIBC_NEWLIB_NANO_WIDE_ORIENT is not set
diff --git a/configs/riscv64.config b/configs/riscv64.config
@@ -23,7 +23,7 @@ CT_LIBC_NEWLIB_IO_FLOAT=y
 CT_LIBC_NEWLIB_DISABLE_SUPPLIED_SYSCALLS=y
 CT_LIBC_NEWLIB_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_LITE_EXIT=y
-# CT_LIBC_NEWLIB_MULTITHREAD is not set
+CT_LIBC_NEWLIB_MULTITHREAD=y
 CT_LIBC_NEWLIB_RETARGETABLE_LOCKING=y
 # CT_LIBC_NEWLIB_WIDE_ORIENT is not set
 # CT_LIBC_NEWLIB_NANO_MALLOC is not set
@@ -56,7 +56,7 @@ CT_LIBC_NEWLIB_NANO_ATEXIT_DYNAMIC_ALLOC=y
 CT_LIBC_NEWLIB_NANO_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_NANO_LITE_EXIT=y
 CT_LIBC_NEWLIB_NANO_REENT_SMALL=y
-# CT_LIBC_NEWLIB_NANO_MULTITHREAD is not set
+CT_LIBC_NEWLIB_NANO_MULTITHREAD=y
 CT_LIBC_NEWLIB_NANO_RETARGETABLE_LOCKING=y
 CT_LIBC_NEWLIB_NANO_EXTRA_SECTIONS=y
 # CT_LIBC_NEWLIB_NANO_WIDE_ORIENT is not set
diff --git a/configs/sparc.config b/configs/sparc.config
@@ -20,7 +20,7 @@ CT_LIBC_NEWLIB_IO_FLOAT=y
 CT_LIBC_NEWLIB_DISABLE_SUPPLIED_SYSCALLS=y
 CT_LIBC_NEWLIB_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_LITE_EXIT=y
-# CT_LIBC_NEWLIB_MULTITHREAD is not set
+CT_LIBC_NEWLIB_MULTITHREAD=y
 CT_LIBC_NEWLIB_RETARGETABLE_LOCKING=y
 # CT_LIBC_NEWLIB_WIDE_ORIENT is not set
 # CT_LIBC_NEWLIB_NANO_MALLOC is not set
@@ -53,7 +53,7 @@ CT_LIBC_NEWLIB_NANO_ATEXIT_DYNAMIC_ALLOC=y
 CT_LIBC_NEWLIB_NANO_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_NANO_LITE_EXIT=y
 CT_LIBC_NEWLIB_NANO_REENT_SMALL=y
-# CT_LIBC_NEWLIB_NANO_MULTITHREAD is not set
+CT_LIBC_NEWLIB_NANO_MULTITHREAD=y
 CT_LIBC_NEWLIB_NANO_RETARGETABLE_LOCKING=y
 CT_LIBC_NEWLIB_NANO_EXTRA_SECTIONS=y
 # CT_LIBC_NEWLIB_NANO_WIDE_ORIENT is not set
diff --git a/configs/x86_64-zephyr-elf.config b/configs/x86_64-zephyr-elf.config
@@ -22,7 +22,7 @@ CT_LIBC_NEWLIB_IO_FLOAT=y
 CT_LIBC_NEWLIB_DISABLE_SUPPLIED_SYSCALLS=y
 CT_LIBC_NEWLIB_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_LITE_EXIT=y
-# CT_LIBC_NEWLIB_MULTITHREAD is not set
+CT_LIBC_NEWLIB_MULTITHREAD=y
 CT_LIBC_NEWLIB_RETARGETABLE_LOCKING=y
 # CT_LIBC_NEWLIB_WIDE_ORIENT is not set
 # CT_LIBC_NEWLIB_NANO_MALLOC is not set
@@ -56,7 +56,7 @@ CT_LIBC_NEWLIB_NANO_ATEXIT_DYNAMIC_ALLOC=y
 CT_LIBC_NEWLIB_NANO_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_NANO_LITE_EXIT=y
 CT_LIBC_NEWLIB_NANO_REENT_SMALL=y
-# CT_LIBC_NEWLIB_NANO_MULTITHREAD is not set
+CT_LIBC_NEWLIB_NANO_MULTITHREAD=y
 CT_LIBC_NEWLIB_NANO_RETARGETABLE_LOCKING=y
 CT_LIBC_NEWLIB_NANO_EXTRA_SECTIONS=y
 # CT_LIBC_NEWLIB_NANO_WIDE_ORIENT is not set
diff --git a/configs/xtensa_intel_apl_adsp.config b/configs/xtensa_intel_apl_adsp.config
@@ -23,7 +23,7 @@ CT_LIBC_NEWLIB_IO_FLOAT=y
 CT_LIBC_NEWLIB_DISABLE_SUPPLIED_SYSCALLS=y
 CT_LIBC_NEWLIB_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_LITE_EXIT=y
-# CT_LIBC_NEWLIB_MULTITHREAD is not set
+CT_LIBC_NEWLIB_MULTITHREAD=y
 CT_LIBC_NEWLIB_RETARGETABLE_LOCKING=y
 # CT_LIBC_NEWLIB_WIDE_ORIENT is not set
 # CT_LIBC_NEWLIB_NANO_MALLOC is not set
@@ -56,7 +56,7 @@ CT_LIBC_NEWLIB_NANO_ATEXIT_DYNAMIC_ALLOC=y
 CT_LIBC_NEWLIB_NANO_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_NANO_LITE_EXIT=y
 CT_LIBC_NEWLIB_NANO_REENT_SMALL=y
-# CT_LIBC_NEWLIB_NANO_MULTITHREAD is not set
+CT_LIBC_NEWLIB_NANO_MULTITHREAD=y
 CT_LIBC_NEWLIB_NANO_RETARGETABLE_LOCKING=y
 CT_LIBC_NEWLIB_NANO_EXTRA_SECTIONS=y
 # CT_LIBC_NEWLIB_NANO_WIDE_ORIENT is not set
diff --git a/configs/xtensa_intel_bdw_adsp.config b/configs/xtensa_intel_bdw_adsp.config
@@ -23,7 +23,7 @@ CT_LIBC_NEWLIB_IO_FLOAT=y
 CT_LIBC_NEWLIB_DISABLE_SUPPLIED_SYSCALLS=y
 CT_LIBC_NEWLIB_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_LITE_EXIT=y
-# CT_LIBC_NEWLIB_MULTITHREAD is not set
+CT_LIBC_NEWLIB_MULTITHREAD=y
 CT_LIBC_NEWLIB_RETARGETABLE_LOCKING=y
 # CT_LIBC_NEWLIB_WIDE_ORIENT is not set
 # CT_LIBC_NEWLIB_NANO_MALLOC is not set
@@ -56,7 +56,7 @@ CT_LIBC_NEWLIB_NANO_ATEXIT_DYNAMIC_ALLOC=y
 CT_LIBC_NEWLIB_NANO_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_NANO_LITE_EXIT=y
 CT_LIBC_NEWLIB_NANO_REENT_SMALL=y
-# CT_LIBC_NEWLIB_NANO_MULTITHREAD is not set
+CT_LIBC_NEWLIB_NANO_MULTITHREAD=y
 CT_LIBC_NEWLIB_NANO_RETARGETABLE_LOCKING=y
 CT_LIBC_NEWLIB_NANO_EXTRA_SECTIONS=y
 # CT_LIBC_NEWLIB_NANO_WIDE_ORIENT is not set
diff --git a/configs/xtensa_intel_byt_adsp.config b/configs/xtensa_intel_byt_adsp.config
@@ -23,7 +23,7 @@ CT_LIBC_NEWLIB_IO_FLOAT=y
 CT_LIBC_NEWLIB_DISABLE_SUPPLIED_SYSCALLS=y
 CT_LIBC_NEWLIB_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_LITE_EXIT=y
-# CT_LIBC_NEWLIB_MULTITHREAD is not set
+CT_LIBC_NEWLIB_MULTITHREAD=y
 CT_LIBC_NEWLIB_RETARGETABLE_LOCKING=y
 # CT_LIBC_NEWLIB_WIDE_ORIENT is not set
 # CT_LIBC_NEWLIB_NANO_MALLOC is not set
@@ -56,7 +56,7 @@ CT_LIBC_NEWLIB_NANO_ATEXIT_DYNAMIC_ALLOC=y
 CT_LIBC_NEWLIB_NANO_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_NANO_LITE_EXIT=y
 CT_LIBC_NEWLIB_NANO_REENT_SMALL=y
-# CT_LIBC_NEWLIB_NANO_MULTITHREAD is not set
+CT_LIBC_NEWLIB_NANO_MULTITHREAD=y
 CT_LIBC_NEWLIB_NANO_RETARGETABLE_LOCKING=y
 CT_LIBC_NEWLIB_NANO_EXTRA_SECTIONS=y
 # CT_LIBC_NEWLIB_NANO_WIDE_ORIENT is not set
diff --git a/configs/xtensa_intel_s1000.config b/configs/xtensa_intel_s1000.config
@@ -22,7 +22,7 @@ CT_LIBC_NEWLIB_IO_FLOAT=y
 CT_LIBC_NEWLIB_DISABLE_SUPPLIED_SYSCALLS=y
 CT_LIBC_NEWLIB_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_LITE_EXIT=y
-# CT_LIBC_NEWLIB_MULTITHREAD is not set
+CT_LIBC_NEWLIB_MULTITHREAD=y
 CT_LIBC_NEWLIB_RETARGETABLE_LOCKING=y
 # CT_LIBC_NEWLIB_WIDE_ORIENT is not set
 # CT_LIBC_NEWLIB_NANO_MALLOC is not set
@@ -56,7 +56,7 @@ CT_LIBC_NEWLIB_NANO_ATEXIT_DYNAMIC_ALLOC=y
 CT_LIBC_NEWLIB_NANO_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_NANO_LITE_EXIT=y
 CT_LIBC_NEWLIB_NANO_REENT_SMALL=y
-# CT_LIBC_NEWLIB_NANO_MULTITHREAD is not set
+CT_LIBC_NEWLIB_NANO_MULTITHREAD=y
 CT_LIBC_NEWLIB_NANO_RETARGETABLE_LOCKING=y
 CT_LIBC_NEWLIB_NANO_EXTRA_SECTIONS=y
 # CT_LIBC_NEWLIB_NANO_WIDE_ORIENT is not set
diff --git a/configs/xtensa_nxp_imx8m_adsp.config b/configs/xtensa_nxp_imx8m_adsp.config
@@ -23,7 +23,7 @@ CT_LIBC_NEWLIB_IO_FLOAT=y
 CT_LIBC_NEWLIB_DISABLE_SUPPLIED_SYSCALLS=y
 CT_LIBC_NEWLIB_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_LITE_EXIT=y
-# CT_LIBC_NEWLIB_MULTITHREAD is not set
+CT_LIBC_NEWLIB_MULTITHREAD=y
 CT_LIBC_NEWLIB_RETARGETABLE_LOCKING=y
 # CT_LIBC_NEWLIB_WIDE_ORIENT is not set
 # CT_LIBC_NEWLIB_NANO_MALLOC is not set
@@ -56,7 +56,7 @@ CT_LIBC_NEWLIB_NANO_ATEXIT_DYNAMIC_ALLOC=y
 CT_LIBC_NEWLIB_NANO_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_NANO_LITE_EXIT=y
 CT_LIBC_NEWLIB_NANO_REENT_SMALL=y
-# CT_LIBC_NEWLIB_NANO_MULTITHREAD is not set
+CT_LIBC_NEWLIB_NANO_MULTITHREAD=y
 CT_LIBC_NEWLIB_NANO_RETARGETABLE_LOCKING=y
 CT_LIBC_NEWLIB_NANO_EXTRA_SECTIONS=y
 # CT_LIBC_NEWLIB_NANO_WIDE_ORIENT is not set
diff --git a/configs/xtensa_nxp_imx_adsp.config b/configs/xtensa_nxp_imx_adsp.config
@@ -23,7 +23,7 @@ CT_LIBC_NEWLIB_IO_FLOAT=y
 CT_LIBC_NEWLIB_DISABLE_SUPPLIED_SYSCALLS=y
 CT_LIBC_NEWLIB_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_LITE_EXIT=y
-# CT_LIBC_NEWLIB_MULTITHREAD is not set
+CT_LIBC_NEWLIB_MULTITHREAD=y
 CT_LIBC_NEWLIB_RETARGETABLE_LOCKING=y
 # CT_LIBC_NEWLIB_WIDE_ORIENT is not set
 # CT_LIBC_NEWLIB_NANO_MALLOC is not set
@@ -56,7 +56,7 @@ CT_LIBC_NEWLIB_NANO_ATEXIT_DYNAMIC_ALLOC=y
 CT_LIBC_NEWLIB_NANO_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_NANO_LITE_EXIT=y
 CT_LIBC_NEWLIB_NANO_REENT_SMALL=y
-# CT_LIBC_NEWLIB_NANO_MULTITHREAD is not set
+CT_LIBC_NEWLIB_NANO_MULTITHREAD=y
 CT_LIBC_NEWLIB_NANO_RETARGETABLE_LOCKING=y
 CT_LIBC_NEWLIB_NANO_EXTRA_SECTIONS=y
 # CT_LIBC_NEWLIB_NANO_WIDE_ORIENT is not set
diff --git a/configs/xtensa_sample_controller.config b/configs/xtensa_sample_controller.config
@@ -22,7 +22,7 @@ CT_LIBC_NEWLIB_IO_FLOAT=y
 CT_LIBC_NEWLIB_DISABLE_SUPPLIED_SYSCALLS=y
 CT_LIBC_NEWLIB_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_LITE_EXIT=y
-# CT_LIBC_NEWLIB_MULTITHREAD is not set
+CT_LIBC_NEWLIB_MULTITHREAD=y
 CT_LIBC_NEWLIB_RETARGETABLE_LOCKING=y
 # CT_LIBC_NEWLIB_WIDE_ORIENT is not set
 # CT_LIBC_NEWLIB_NANO_MALLOC is not set
@@ -55,7 +55,7 @@ CT_LIBC_NEWLIB_NANO_ATEXIT_DYNAMIC_ALLOC=y
 CT_LIBC_NEWLIB_NANO_GLOBAL_ATEXIT=y
 CT_LIBC_NEWLIB_NANO_LITE_EXIT=y
 CT_LIBC_NEWLIB_NANO_REENT_SMALL=y
-# CT_LIBC_NEWLIB_NANO_MULTITHREAD is not set
+CT_LIBC_NEWLIB_NANO_MULTITHREAD=y
 CT_LIBC_NEWLIB_NANO_RETARGETABLE_LOCKING=y
 CT_LIBC_NEWLIB_NANO_EXTRA_SECTIONS=y
 # CT_LIBC_NEWLIB_NANO_WIDE_ORIENT is not set
diff --git a/release-notes.md b/release-notes.md
@@ -4,6 +4,9 @@
   * Pull in fixes from upstream for:
     hw/arm: Fix modelling of SSE-300 TCMs and SRAM
 
+- newlib:
+  * Added multithreading support
+
 ## Zephyr SDK 0.13.0-alpha-1
 
 - general:
