kit

commit 5a0e24dcba8784c652d4be3e3b6640564fcf52b4
parent 5f1b0107a2365050f74e08713d520be2f8df9408
Author: Ryan Sepassi <rsepassi@gmail.com>
Date:   Tue, 16 Jun 2026 22:32:14 -0700

arm32 TLS-as-static: place .tdata/.tbss in the bare linker script

The freestanding single-thread model treats __thread vars as plain static
instances (M-profile has no thread register), addressed absolutely via MOVW/MOVT
— but the bare-metal linker script never placed .tdata/.tbss, so the initial
value was never seeded (read 0) and TLS symbols resolved to ~0. Fold .tdata into
.data (flash-LMA-seeded by the reset stub) and .tbss into .bss (zeroed). Fixes
141_threadlocal_mutate and 142_threadlocal_multi (O0+O1).

Diffstat:
M
test/lib/exec_bare.sh
 | 
5
+++++

1 file changed, 5 insertions(+), 0 deletions(-)
diff --git a/test/lib/exec_bare.sh b/test/lib/exec_bare.sh
@@ -557,12 +557,17 @@ SECTIONS {
   .data : ALIGN(4) {
     _sdata = .;
     *(.data*)
+    /* Single-thread TLS-as-static: __thread initialized data is a plain static
+     * instance, seeded from flash by the reset stub like .data. */
+    *(.tdata*)
     . = ALIGN(4);
     _edata = .;
   } > SRAM AT> FLASH
   .bss (NOLOAD) : ALIGN(4) {
     _sbss = .;
     *(.bss*)
+    /* Single-thread TLS-as-static: __thread zero data folds into .bss. */
+    *(.tbss*)
     *(COMMON)
     . = ALIGN(4);
     _ebss = .;