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New magisk tmp dir: /debug_ramdisk

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Co-authored-by: LoveSy <shana@zju.edu.cn>
This commit is contained in:
vvb2060 2023-04-03 02:02:22 +08:00 committed by John Wu
parent ee50da566f
commit f9d22cf8ee
1 changed files with 7 additions and 4 deletions
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11
native/src/init/rootdir.cpp
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@ -215,10 +215,9 @@ void MagiskInit::patch_ro_root() {
if (access("/sbin", F_OK) == 0) { if (access("/sbin", F_OK) == 0) {
tmp_dir = "/sbin"; tmp_dir = "/sbin";
} else { } else {
char buf[16]; tmp_dir = "/debug_ramdisk";
gen_rand_str(buf, sizeof(buf)); xmkdir("/data/debug_ramdisk", 0);
tmp_dir = "/dev/"s + buf; xmount("/debug_ramdisk", "/data/debug_ramdisk", nullptr, MS_MOVE, nullptr);
xmkdir(tmp_dir.data(), 0);
} }
setup_tmp(tmp_dir.data()); setup_tmp(tmp_dir.data());
@ -230,6 +229,10 @@ void MagiskInit::patch_ro_root() {
xmount("/", ROOTMIR, nullptr, MS_BIND, nullptr); xmount("/", ROOTMIR, nullptr, MS_BIND, nullptr);
recreate_sbin(ROOTMIR "/sbin", true); recreate_sbin(ROOTMIR "/sbin", true);
xumount2(ROOTMIR, MNT_DETACH); xumount2(ROOTMIR, MNT_DETACH);
} else {
// Restore debug_ramdisk
xmount("/data/debug_ramdisk", "/debug_ramdisk", nullptr, MS_MOVE, nullptr);
rmdir("/data/debug_ramdisk");
} }
xrename("overlay.d", ROOTOVL); xrename("overlay.d", ROOTOVL);