10.0.0-27: Difference between revisions

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=== [[FIRM|NATIVE_FIRM]] ===

Minus configmem init, exactly 4 functions were updated in the ARM11-kernel. See [[3DS_System_Flaws|here]] for details on that.

Minus configmem init, exactly 4 functions were updated in the ARM11-kernel(at least one was for fixing a security issue). See [[3DS_System_Flaws|here]] for details on that.

Only the following FIRM ARM11 modules were updated with the codebin:

* FS module was updated.

* Loader module was updated, the only change was that the version value passed to [[FS:InitializeWithSdkVersion]] was changed from 0x0b0201c8 to 0x0b0400c8.

=== Process9 ===

One of the changes was that main() was updated. Three functions(two initialization functions + launch_firm()) which were previously called directly are now called via a wrapper function with a funcptr parameter. As a result, the main() prologue/epilog changed. This is for temporarily relocating the stack elsewhere(same relocated-stack-addr for all func-calls), just for calling the funcptr(all registers except for r0..r3 are saved/restored before/after calling the funcptr).

Some FS-related code seems to have been changed.

There's also some new UTF-16 strings in the .(ro)data, but there's no(?) known code which actually uses these.

==== New3DS-only ====

~~The~~ arm9loader ~~wasn~~'~~t changed~~(~~besides addresses~~).

No actual code/data was changed in the arm9loader.

During loading, kernel9 copies the entire Process9 NCCH to a relocated base-addr, which is: endaddr - ncchsize. On Old3DS, endaddr is 0x080fffe0. On New3DS, endaddr was 0x080fffe0 prior to v10.0-FIRM, now it's 0x0817ffe0.

The Process9 .bss(which contains the proc9 heaps too) is larger now: previously the .bss ended at address 0x080ff080, now it ends at 0x08117040.

Therefore, *all* of the extended New3DS-only arm9mem gets overwritten during FIRM boot with v10.0.

There were no New3DS-only Process9 code changes.

==See Also==

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* [http://yls8.mtheall.com/ninupdates/reports.php?date=09-08-15_09-34-44&sys=ctr]

* [http://yls8.mtheall.com/ninupdates/reports.php?date=09-08-15_09-34-53&sys=ktr]

[[Category:Firmware Versions]]

@@ Line 11: / Line 11: @@
 === [[FIRM|NATIVE_FIRM]] ===
-Minus configmem init, exactly 4 functions were updated in the ARM11-kernel. See [[3DS_System_Flaws|here]] for details on that.
+Minus configmem init, exactly 4 functions were updated in the ARM11-kernel(at least one was for fixing a security issue). See [[3DS_System_Flaws|here]] for details on that.
+Only the following FIRM ARM11 modules were updated with the codebin:
+* FS module was updated.
+* Loader module was updated, the only change was that the version value passed to [[FS:InitializeWithSdkVersion]] was changed from 0x0b0201c8 to 0x0b0400c8.
+=== Process9 ===
+One of the changes was that main() was updated. Three functions(two initialization functions + launch_firm()) which were previously called directly are now called via a wrapper function with a funcptr parameter. As a result, the main() prologue/epilog changed. This is for temporarily relocating the stack elsewhere(same relocated-stack-addr for all func-calls), just for calling the funcptr(all registers except for r0..r3 are saved/restored before/after calling the funcptr).
+Some FS-related code seems to have been changed.
+There's also some new UTF-16 strings in the .(ro)data, but there's no(?) known code which actually uses these.
 ==== New3DS-only ====
-The arm9loader wasn't changed(besides addresses).
+No actual code/data was changed in the arm9loader.
+During loading, kernel9 copies the entire Process9 NCCH to a relocated base-addr, which is: endaddr - ncchsize. On Old3DS, endaddr is 0x080fffe0. On New3DS, endaddr was 0x080fffe0 prior to v10.0-FIRM, now it's 0x0817ffe0.
+The Process9 .bss(which contains the proc9 heaps too) is larger now: previously the .bss ended at address 0x080ff080, now it ends at 0x08117040.
+Therefore, *all* of the extended New3DS-only arm9mem gets overwritten during FIRM boot with v10.0.
+There were no New3DS-only Process9 code changes.
 ==See Also==
@@ Line 20: / Line 39: @@
 * [http://yls8.mtheall.com/ninupdates/reports.php?date=09-08-15_09-34-44&sys=ctr]
 * [http://yls8.mtheall.com/ninupdates/reports.php?date=09-08-15_09-34-53&sys=ktr]
+[[Category:Firmware Versions]]