NSO: Difference between revisions

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@@ Line 2: / Line 2: @@
 It starts with the "NSO" header and mainly describes .text, .rodata, and .data segments (like a short-form of ELF program headers):
-=== SegmentHeader ===
-{| class="wikitable" border="1"
-|-
-! Offset
-! Size
-! Description
-|-
-| 0x0
-| 4
-| file offset of data
-|-
-| 0x4
-| 4
-| memory offset loaded to
-|-
-| 0x8
-| 4
-| size of data copied to memory offset (i.e. size after decompression)
-|-
-| 0xC
-| 4
-| alignment used on memory size / size of .bss in the case of .data segment
-|}
 === .rodata-relative extent ===
@@ Line 56: / Line 32: @@
 | 0x4
 | 4
-|
+| Version
 |-
 | 0x8
 | 4
-|
+| Reserved1
 |-
 | 0xC
 | 4
-| Always 0x3f?
+| Flags: TextCompress = 1, RoCompress = 2, DataCompress = 4, TextHash = 8, RoHash = 0x10, DataHash = 0x20
 |-
 | 0x10
-| 0x10 * 3
+| 4
-| SegmentHeader for each segment
+| TextFileOffset
+|-
+| 0x14
+| 4
+| TextMemoryOffset
+|-
+| 0x18
+| 4
+| TextSize
+|-
+| 0x1C
+| 4
+| ModuleNameOffset
+|-
+| 0x20
+| 4
+| RoFileOffset
+|-
+| 0x24
+| 4
+| RoMemoryOffset
+|-
+| 0x28
+| 4
+| RoSize
+|-
+| 0x2C
+| 4
+| ModuleNameSize
+|-
+| 0x30
+| 4
+| DataFileOffset
+|-
+| 0x34
+| 4
+| DataMemoryOffset
+|-
+| 0x38
+| 4
+| DataSize
+|-
+| 0x3C
+| 4
+| BssSize
 |-
 | 0x40
@@ Line 75: / Line 95: @@
 |-
 | 0x60
-| 0x4 * 3
+| 0x4
-| file size of each segment (i.e. LZ4-compressed size)
+| TextFileSize
+|-
+| 0x64
+| 0x4
+| RoFileSize
+|-
+| 0x68
+| 0x4
+| DataFileSize
 |-
 | 0x6c