scripts: logging: support native_posix dictionary logging

- Do not look CONFIG_* symbols from dynamic symbols which might
  be there before the symbol table where CONFIG_* symbols are found.

- Define posix architecture in ARCHS list.

- Check if architecture is not found instead of letting the code
  run into trying to access dictionary with None key.

Signed-off-by: Miika Karanki <miika.karanki@vaisala.com>

scripts/logging/dictionary/database_gen.py

@@ -143,7 +143,7 @@ def find_elf_sections(elf, sh_name):
 def get_kconfig_symbols(elf):
     """Get kconfig symbols from the ELF file"""
     for section in elf.iter_sections():
-        if isinstance(section, SymbolTableSection):
+        if isinstance(section, SymbolTableSection) and section['sh_type'] != 'SHT_DYNSYM':
             return {sym.name: sym.entry.st_value
                     for sym in section.iter_symbols()
                        if sym.name.startswith("CONFIG_")}
@@ -254,6 +254,9 @@ def process_kconfigs(elf, database):
         if arch['kconfig'] in kconfigs:
             database.set_arch(name)
             break
+    else:
+        logger.error("Did not found architecture")
+        sys.exit(1)
 
     # Put some kconfigs into the database
     #

scripts/logging/dictionary/dictionary_parser/log_database.py

@@ -46,6 +46,9 @@ ARCHS = {
         # for explanation.
         "extra_string_section": ['datas'],
     },
+    "posix" : {
+        "kconfig": "CONFIG_ARCH_POSIX",
+    },
     "riscv" : {
         "kconfig": "CONFIG_RISCV",
     },