Talk:SELF File Format: Difference between revisions
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= | == Authentication ID == | ||
Difference in auth id : | |||
PSP : ? PSP SELF doesn't have the same sort of SELF header (magic = "PSP" instead of "SCE") | |||
PS3 : 1x xx xx xx xx xx xx xx | |||
PSVita : 2x xx xx xx xx xx xx xx | |||
PS4 : 3x xx xx xx xx xx xx xx | |||
Offset 0x80 in the SELF header. <code>SceWebCore</code> has 0x8000 set; the only system app with that flag set. | Offset 0x80 in the SELF header. <code>SceWebCore</code> has 0x8000 set; the only system app with that flag set. | ||
<code>sceAppMgrConvertVs0UserDrivePath</code> checks the authentication id to limit mount points. | <code>sceAppMgrConvertVs0UserDrivePath</code> checks the authentication id to limit mount points. | ||
<code>0x2800000000008003</code> seen used by [[SceWebCore]] can | <code>0x2800000000008003</code> seen used by [[SceWebCore]] can access <code>vs0:data/external/cert/</code> and <code>vs0:data/external/webcore/</code>. | ||
<code>0x2800000000008004</code> seen used by games and <code>0x210000101CD20007</code> seen used by [[PSM]] can only access <code>vs0:data/external</code> and <code>vs0:sys/external</code> | <code>0x2800000000008004</code> seen used by games and <code>0x210000101CD20007</code> seen used by [[PSM]] can only access <code>vs0:data/external</code> and <code>vs0:sys/external</code> | ||
Revision as of 19:14, 28 March 2018
Authentication ID
Difference in auth id : PSP : ? PSP SELF doesn't have the same sort of SELF header (magic = "PSP" instead of "SCE") PS3 : 1x xx xx xx xx xx xx xx PSVita : 2x xx xx xx xx xx xx xx PS4 : 3x xx xx xx xx xx xx xx
Offset 0x80 in the SELF header. SceWebCore has 0x8000 set; the only system app with that flag set.
sceAppMgrConvertVs0UserDrivePath checks the authentication id to limit mount points.
0x2800000000008003 seen used by SceWebCore can access vs0:data/external/cert/ and vs0:data/external/webcore/.
0x2800000000008004 seen used by games and 0x210000101CD20007 seen used by PSM can only access vs0:data/external and vs0:sys/external
Relocations
| Offset | Size | Description |
|---|---|---|
| 0x0 | 0x4 | Relocation Type |
| 0x4 | 0x4 | Long entry: Addend |
| 0x4 | 0x4 | Short entry: 0-19 = Bits 10-29 of offset, 20-31 = addend |
| 0x8 | 0x4 | Long entry: Offset |
Relocations can be of two types: 8 byte "short" entries or 12 byte "long" entries. The relocation code is the same as ARM ELF format.
Segment start = Buffer address of segment indexed at "Patch segment"
Symbol start = Buffer address of segment indexed at "Symbol segment"
Address to patch = segment start + offset
P = address to patch
S = "Symbol segment" == 15 ? 0 : symbol start
A = addend
Relocation Type
| Start | End | Description |
|---|---|---|
| 0 | 3 | Short entry if set |
| 4 | 7 | Symbol segment |
| 8 | 15 | Relocation code |
| 16 | 19 | Patch segment |
| 20 | 27 | Long entry: Optional relocation code 2 |
| 28 | 31 | Long entry: Optional distance 2 |
| 20 | 31 | Short entry: Lower 12 bits of offset |
Supported Relocation Codes (1.69)
| Code | Description |
|---|---|
| 0 | R_ARM_NONE |
| 2 | R_ARM_ABS32 |
| 3 | R_ARM_REL32 |
| 10 | R_ARM_THM_CALL |
| 28 | R_ARM_CALL |
| 29 | R_ARM_JUMP24 |
| 38 | R_ARM_TARGET1 (same as R_ARM_ABS32) |
| 40 | R_ARM_V4BX (same as R_ARM_NONE) |
| 41 | R_ARM_TARGET2 (same as R_ARM_REL32) |
| 42 | R_ARM_PREL31 |
| 43 | R_ARM_MOVW_ABS_NC |
| 44 | R_ARM_MOVT_ABS |
| 47 | R_ARM_THM_MOVW_ABS_NC |
| 48 | R_ARM_THM_MOVT_ABS |