fix(load_ram): check for overlaps in bss section

Newer toolchains now store jump table in the data
section which results in .bss section to be used more as well.
This change should ensure that we avoid overwriting
the bss section of the flasher stub when writing to RAM.

esptool/bin_image.py

@@ -1135,6 +1135,7 @@ class ESP32H2FirmwareImage(ESP32C6FirmwareImage):
 class ELFFile(object):
     SEC_TYPE_PROGBITS = 0x01
     SEC_TYPE_STRTAB = 0x03
+    SEC_TYPE_NOBITS = 0x08  # e.g. .bss section
     SEC_TYPE_INITARRAY = 0x0E
     SEC_TYPE_FINIARRAY = 0x0F
 
@@ -1225,6 +1226,7 @@ def read_section_header(offs):
 
         all_sections = [read_section_header(offs) for offs in section_header_offsets]
         prog_sections = [s for s in all_sections if s[1] in ELFFile.PROG_SEC_TYPES]
+        nobits_secitons = [s for s in all_sections if s[1] == ELFFile.SEC_TYPE_NOBITS]
 
         # search for the string table section
         if not (shstrndx * self.LEN_SEC_HEADER) in section_header_offsets:
@@ -1256,6 +1258,11 @@ def read_data(offs, size):
             if lma != 0 and size > 0
         ]
         self.sections = prog_sections
+        self.nobits_sections = [
+            ELFSection(lookup_string(n_offs), lma, b"")
+            for (n_offs, _type, lma, size, offs) in nobits_secitons
+            if lma != 0 and size > 0
+        ]
 
     def _read_segments(self, f, segment_header_offs, segment_header_count, shstrndx):
         f.seek(segment_header_offs)

esptool/loader.py

@@ -170,6 +170,8 @@ def __init__(self, json_path):
             self.data = None
             self.data_start = None
 
+        self.bss_start = stub.get("bss_start")
+
 
 class ESPLoader(object):
     """Base class providing access to ESP ROM & software stub bootloaders.
@@ -780,17 +782,17 @@ def mem_begin(self, size, blocks, blocksize, offset):
             stub = StubFlasher(get_stub_json_path(self.CHIP_NAME))
             load_start = offset
             load_end = offset + size
-            for start, end in [
-                (stub.data_start, stub.data_start + len(stub.data)),
-                (stub.text_start, stub.text_start + len(stub.text)),
+            for stub_start, stub_end in [
+                (stub.bss_start, stub.data_start + len(stub.data)),  # DRAM = bss+data
+                (stub.text_start, stub.text_start + len(stub.text)),  # IRAM
             ]:
-                if load_start < end and load_end > start:
+                if load_start < stub_end and load_end > stub_start:
                     raise FatalError(
                         "Software loader is resident at 0x%08x-0x%08x. "
                         "Can't load binary at overlapping address range 0x%08x-0x%08x. "
                         "Either change binary loading address, or use the --no-stub "
                         "option to disable the software loader."
-                        % (start, end, load_start, load_end)
+                        % (stub_start, stub_end, load_start, load_end)
                     )
 
         return self.check_command(

esptool/targets/stub_flasher/stub_flasher_32.json

@@ -3,5 +3,6 @@
     "text": "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",
     "text_start": 1074520064,
     "data": "DMD8P+znC0B/6AtAZ+0LQAbpC0Cf6AtABukLQGXpC0CC6gtA9OoLQJ3qC0CV5wtAGuoLQHTqC0CI6QtAGOsLQLDpC0AY6wtAbegLQMroC0AG6QtAZekLQIXoC0DI6wtAKe0LQLjmC0BL7QtAuOYLQLjmC0C45gtAuOYLQLjmC0C45gtAuOYLQLjmC0Bv6wtAuOYLQEnsC0Ap7QtA",
-    "data_start": 1073605544
+    "data_start": 1073605544,
+    "bss_start": 1073528832
 }

esptool/targets/stub_flasher/stub_flasher_32c2.json

@@ -3,5 +3,6 @@
     "text": "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",
     "text_start": 1077411840,
     "data": "DEDKP+AIOEAsCThAhAk4QFIKOEC+CjhAbAo4QKgHOEAOCjhATgo4QJgJOEBYBzhAzAk4QFgHOEC6CDhA/gg4QCwJOECECThAzAg4QBIIOEBCCDhAyAg4QBYNOEAsCThA1gs4QMoMOECkBjhA9Aw4QKQGOECkBjhApAY4QKQGOECkBjhApAY4QKQGOECkBjhAcgs4QKQGOEDyCzhAygw4QA==",
-    "data_start": 1070295976
+    "data_start": 1070295976,
+    "bss_start": 1070219264
 }

esptool/targets/stub_flasher/stub_flasher_32c3.json

@@ -3,5 +3,6 @@
     "text": 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