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Revise dtb commands CLI

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This commit is contained in:
topjohnwu
2019-09-20 03:53:58 -04:00
parent d81ccde569
commit 120668c7bc
3 changed files with 121 additions and 103 deletions
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42
native/jni/magiskboot/dtb.cpp
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@@ -94,7 +94,7 @@ static void print_node(const void *fdt, int node = 0, int depth = 0) {
}
}
static int find_fstab(const void *fdt, int parent) {
static int find_fstab(const void *fdt, int parent = 0) {
int node, fstab;
fdt_for_each_subnode(node, fdt, parent) {
if (strcmp(fdt_get_name(fdt, node, nullptr), "fstab") == 0)
@@ -106,7 +106,7 @@ static int find_fstab(const void *fdt, int parent) {
return -1;
}
static void dtb_dump(const char *file) {
static void dtb_print(const char *file, bool fstab) {
size_t size ;
uint8_t *dtb, *fdt;
fprintf(stderr, "Loading dtbs from [%s]\n", file);
@@ -116,8 +116,17 @@ static void dtb_dump(const char *file) {
for (int i = 0; i < size; ++i) {
if (memcmp(dtb + i, DTB_MAGIC, 4) == 0) {
fdt = dtb + i;
fprintf(stderr, "Dumping dtb.%04d\n", dtb_num++);
print_node(fdt);
if (fstab) {
int node = find_fstab(fdt);
if (node >= 0) {
fprintf(stderr, "Found fstab in dtb.%04d\n", dtb_num);
print_node(fdt, node);
}
} else {
fprintf(stderr, "Printing dtb.%04d\n", dtb_num);
print_node(fdt);
}
dtb_num++;
}
}
fprintf(stderr, "\n");
@@ -165,15 +174,20 @@ static void dtb_patch(const char *file, int patch) {
exit(!found);
}
int dtb_commands(const char *cmd, int argc, char *argv[]) {
if (argc == 0) return 1;
if (strcmp(cmd, "dump") == 0)
dtb_dump(argv[0]);
else if (strcmp(cmd, "patch") == 0)
dtb_patch(argv[0], 1);
else if (strcmp(cmd, "test") == 0)
dtb_patch(argv[0], 0);
int dtb_commands(int argc, char *argv[]) {
char *dtb = argv[0];
++argv;
--argc;
if (argv[0] == "print"sv) {
dtb_print(dtb, argc > 1 && argv[1] == "-f"sv);
} else if (argv[0] == "patch"sv) {
dtb_patch(dtb, 1);
} else if (argv[0] == "test"sv) {
dtb_patch(dtb, 0);
} else {
return 1;
}
return 0;
}