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Support custom legacy Sony devices with init.real setup

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Custom ROM bring-ups of legacy Sony devices contain the following:
/init (symlink to /bin/init_sony)
/init.real (the "real" Android init)
/bin/init_sony (this was /sbin/init_sony on Android <11)

Kernel loads the ramdisk and starts /init -> /bin/init_sony
/bin/init_sony does low-level device setup (see: https://github.com/LineageOS/android_device_sony_common/blob/lineage-18.1/init/init_main.cpp)
/bin/init_sony unlinks /init and renames /init.real to /init
/bin/init_sony starts /init

Since init_sony needs to run first magiskinit needs to replace init.real instead, so add workarounds based on detection of init.real to boot patcher and uninstaller

Thanks @115ek and @bleckdeth

Fixes #3636

Co-authored-by: topjohnwu <topjohnwu@gmail.com>
This commit is contained in:
Chris Renshaw
2021-10-30 22:59:20 -03:00
committed by GitHub
parent 2c44e1bb93
commit 6663fd3526
9 changed files with 41 additions and 12 deletions
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10
native/jni/magiskboot/ramdisk.cpp
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@@ -59,11 +59,12 @@ void magisk_cpio::patch() {
}
}
#define STOCK_BOOT 0
#define MAGISK_PATCHED (1 << 0)
#define UNSUPPORTED_CPIO (1 << 1)
#define SONY_INIT (1 << 2)
int magisk_cpio::test() {
int ret = 0;
for (auto file : UNSUPPORT_LIST) {
if (exists(file)) {
return UNSUPPORTED_CPIO;
@@ -71,10 +72,13 @@ int magisk_cpio::test() {
}
for (auto file : MAGISK_LIST) {
if (exists(file)) {
return MAGISK_PATCHED;
ret |= MAGISK_PATCHED;
break;
}
}
return STOCK_BOOT;
if (exists("init.real"))
ret |= SONY_INIT;
return ret;
}
#define for_each_line(line, buf, size) \