[rom,chip_info] Mark kChipInfo as used so it is not discarded

With LTO, the linker is more eager to remove it since it's not used anywhere. Signed-off-by: Amaury Pouly <[email protected]>
lowRISC · Feb 3, 2025 · 347819e · 347819e
1 parent 1dc284f
commit 347819e
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diff --git a/util/rom_chip_info.py b/util/rom_chip_info.py
@@ -34,6 +34,7 @@ def generate_chip_info_c_source(scm_revision: int) -> str:
 
 #include "sw/device/lib/base/macros.h"
 
+OT_USED
 OT_SECTION(".chip_info")
 const chip_info_t kChipInfo = {{
   .scm_revision = (chip_info_scm_revision_t){{

diff --git a/util/rom_chip_info_test.py b/util/rom_chip_info_test.py
@@ -27,6 +27,7 @@ def test_simple(self):
 
 #include "sw/device/lib/base/macros.h"
 
+OT_USED
 OT_SECTION(".chip_info")
 const chip_info_t kChipInfo = {
   .scm_revision = (chip_info_scm_revision_t){
@@ -52,6 +53,7 @@ def test_sha1_digest_leading_zero_byte(self):
 
 #include "sw/device/lib/base/macros.h"
 
+OT_USED
 OT_SECTION(".chip_info")
 const chip_info_t kChipInfo = {
   .scm_revision = (chip_info_scm_revision_t){