fix: ram_only_header: pad flash segment to next boundary

When flash segment does not fit minimum alignment requirement, pad it to next alignment boundary so that the flash placement fits properly. Otherwise ELF won't be created due to wrong alignment. Signed-off-by: Sylvio Alves <[email protected]>
espressif · May 22, 2024 · 4394a65 · 4394a65
1 parent 4c5874a
commit 4394a65
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/esptool/bin_image.py b/esptool/bin_image.py
@@ -760,8 +760,10 @@ def get_alignment_data_needed(segment):
                         self.ROM_LOADER.BOOTLOADER_FLASH_OFFSET - self.SEG_HEADER_LEN
                     )
                     if pad_len < align_min:
-                        print("Unable to align the segment!")
-                        break
+                        # in case pad_len does not fit minimum alignment,
+                        # pad it to next aligned boundary
+                        pad_len += self.IROM_ALIGN
+
                     pad_len -= self.ROM_LOADER.BOOTLOADER_FLASH_OFFSET
                     pad_segment = ImageSegment(0, b"\x00" * pad_len, f.tell())
                     self.save_segment(f, pad_segment)