disassembler: Emit %start directive. This avoids a warning when re-assembling

[b43-tools.git] / disassembler / brcm80211fwconv

diff --git a/disassembler/brcm80211fwconv b/disassembler/brcm80211fwconv
index fe5f220fc5c3db2f3b5f2dcd51756da678189931..092c043cfac4e3f06bc985dc282f6eac9df93b0f 100755 (executable)
--- a/disassembler/brcm80211fwconv
+++ b/disassembler/brcm80211fwconv
@@ -56,7 +56,7 @@ def indexToName(index):
        except KeyError:
                return "Unknown"
 
-def parseHeader(hdr_data):
+def parseHeader(hdr_data, sortByOffset):
        sections = []
        for i in range(0, len(hdr_data), 3 * 4):
                offset = ord(hdr_data[i + 0]) | (ord(hdr_data[i + 1]) << 8) |\
@@ -67,7 +67,10 @@ def parseHeader(hdr_data):
                        (ord(hdr_data[i + 10]) << 16) | (ord(hdr_data[i + 11]) << 24)
 
                sections.append( (offset, length, index) )
-       sections.sort(key = lambda x: x[2]) # Sort by index
+       if sortByOffset:
+               sections.sort(key = lambda x: x[0]) # Sort by offset
+       else:
+               sections.sort(key = lambda x: x[2]) # Sort by index
        return sections
 
 def generateHeaderData(sections):
@@ -95,7 +98,7 @@ def getSectionByIndex(sections, searchIndex):
                        return section
        return None
 
-def parseHeaderFile(hdr_filepath):
+def parseHeaderFile(hdr_filepath, sortByOffset=False):
        try:
                hdr_data = file(hdr_filepath, "rb").read()
        except (IOError), e:
@@ -104,7 +107,7 @@ def parseHeaderFile(hdr_filepath):
        if len(hdr_data) % (3 * 4) != 0:
                print "Invalid header file format"
                return None
-       return parseHeader(hdr_data)
+       return parseHeader(hdr_data, sortByOffset)
 
 def dumpInfo(hdr_filepath):
        sections = parseHeaderFile(hdr_filepath)
@@ -142,7 +145,7 @@ def extractSection(hdr_filepath, bin_filepath, extractIndex, outfilePath):
        return 0
 
 def mergeSection(hdr_filepath, bin_filepath, mergeIndex, mergefilePath):
-       sections = parseHeaderFile(hdr_filepath)
+       sections = parseHeaderFile(hdr_filepath, sortByOffset=True)
        if not sections:
                return 1
        try:
@@ -158,9 +161,14 @@ def mergeSection(hdr_filepath, bin_filepath, mergeIndex, mergefilePath):
        newBin = []
        newSections = []
        newOffset = 0
+       foundIt = False
        for section in sections:
                (offset, length, index) = section
                if index == mergeIndex:
+                       if foundIt:
+                               print "Confused. Multiple sections with index %d?" % index
+                               return 1
+                       foundIt = True
                        # We overwrite this section
                        newBin.append(merge_data)
                        newSections.append( (newOffset, len(merge_data), index) )
@@ -173,6 +181,9 @@ def mergeSection(hdr_filepath, bin_filepath, mergeIndex, mergefilePath):
                                return 1
                        newSections.append( (newOffset, length, index) )
                        newOffset += length
+       if not foundIt:
+               print "Did not find section with index %d" % mergeIndex
+               return 1
        newBin = "".join(newBin)
        newHdr = generateHeaderData(newSections)
        try: