[rtems-docs] user/rsb: Mention --with/without-newlib-tls

Sebastian Huber sebastian.huber at embedded-brains.de
Thu Jul 21 08:44:49 UTC 2022

Update #4560.
 user/rsb/project-sets.rst | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/user/rsb/project-sets.rst b/user/rsb/project-sets.rst
index 54a3f8e..ce839c5 100644
--- a/user/rsb/project-sets.rst
+++ b/user/rsb/project-sets.rst
@@ -116,6 +116,15 @@ build sets:
   Attempt to build a C++ compiler.
+``--with-newlib-tls`` or ``--without-newlib-tls``
+  Enable or disable the ``--enable-newlib-reent-thread-local`` Newlib
+  configuration option.  This option is enabled by default on the aarch64, arm,
+  nios2, powerpc, riscv, and sparc targets.  If this option is enabled, then
+  each member of the Newlib struct _reent is replaced by a dedicated
+  thread-local object.  The thread-local objects are defined in translation
+  units which use the corresponding object so that only objects used by the
+  application are linked in.
 The RSB provides build sets for some BSPs. These build sets will build:
 - Compiler, linker, debugger and RTEMS Tools.

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