scripts: gen_kobject_list: linker section for _thread_idx_map

In some circumstances, _thread_idx_map[] is all zero and the linker decides to put it into BSS instead of DATA section. This results in kernel objects being pushed away so the hash table is no longer valid. This forces _thread_idx_map to be in the data section inside the intermediate object file so it will be placed in the data section in final binary. Fixes zephyrproject-rtos#43618 Signed-off-by: Daniel Leung <[email protected]>
dcpleung · Mar 15, 2022 · 2ef39e9 · 2ef39e9
1 parent 44feb7d
commit 2ef39e9
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/scripts/gen_kobject_list.py b/scripts/gen_kobject_list.py
@@ -868,6 +868,7 @@ def write_gperf_table(fp, syms, objs, little_endian, static_begin, static_end):
 
     # Generate the array of already mapped thread indexes
     fp.write('\n')
+    fp.write('Z_GENERIC_DOT_SECTION(data)\n')
     fp.write('uint8_t _thread_idx_map[%d] = {' % (thread_max_bytes))
 
     for i in range(0, thread_max_bytes):