binman: Support finding symbols in sub-sections

At present binman only supports resolving symbols in the same section as
the binary that uses it. This is quite limited because we often need to
group entries into different sections.

Enhance the algorithm to search the entire image for symbols.

Signed-off-by: Simon Glass <sjg@chromium.org>

1 files changed, 15 insertions, 0 deletions

diff --git a/tools/binman/ftest.py b/tools/binman/ftest.py
index e753a342c8..5016060ea6 100644
--- a/tools/binman/ftest.py
+++ b/tools/binman/ftest.py
@@ -4139,6 +4139,21 @@ class TestFunctional(unittest.TestCase):
             }
         self.assertEqual(expected, props)
 
+    def testSymbolsSubsection(self):
+        """Test binman can assign symbols from a subsection"""
+        elf_fname = self.ElfTestFile('u_boot_binman_syms')
+        syms = elf.GetSymbols(elf_fname, ['binman', 'image'])
+        addr = elf.GetSymbolAddress(elf_fname, '__image_copy_start')
+        self.assertEqual(syms['_binman_u_boot_spl_prop_offset'].address, addr)
+
+        self._SetupSplElf('u_boot_binman_syms')
+        data = self._DoReadFile('187_symbols_sub.dts')
+        sym_values = struct.pack('<LQLL', 0x00, 0x1c, 0x28, 0x04)
+        expected = (sym_values + U_BOOT_SPL_DATA[20:] +
+                    tools.GetBytes(0xff, 1) + U_BOOT_DATA + sym_values +
+                    U_BOOT_SPL_DATA[20:])
+        self.assertEqual(expected, data)
+
 
 if __name__ == "__main__":
     unittest.main()