LLEXT: add a macro to place selected functions in .text.dram

With this macro modules can use "__cold" in front of their function definitions to place them in the .text.dram section, which will force their execution in DRAM without being copied to SRAM. Signed-off-by: Guennadi Liakhovetski <[email protected]>
thesofproject · Nov 27, 2024 · bb30a38 · bb30a38
1 parent 675e3c4
commit bb30a38
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/src/include/module/module/llext.h b/src/include/module/module/llext.h
@@ -34,4 +34,10 @@ static const struct sof_module_api_build_info buildinfo __section(".mod_buildinf
 	.api_version_number.full = SOF_MODULE_API_CURRENT_VERSION, \
 }
 
+#if CONFIG_LLEXT_TYPE_ELF_RELOCATABLE && defined(LL_EXTENSION_BUILD)
+#define __cold __section(".text.dram")
+#else
+#define __cold
+#endif
+
 #endif