Changes

NSO (view source)

Revision as of 16:07, 3 August 2017

80 bytes added , 16:07, 3 August 2017

no edit summary

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

Aerosoul

3

edits