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Introduce KEEPVBMETAFLAG env variable

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Close #4447, close #4906, close #4901, close #4964
This commit is contained in:
topjohnwu
2021-11-23 22:14:12 -08:00
parent 65a79610aa
commit 228570640e
4 changed files with 20 additions and 11 deletions
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4
native/jni/magiskboot/bootimg.cpp
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@ -768,7 +768,9 @@ void repack(const char *src_img, const char *out_img, bool skip_comp) {
memcpy(footer, boot.avb_footer, sizeof(AvbFooter));
footer->original_image_size = __builtin_bswap64(off.total);
footer->vbmeta_offset = __builtin_bswap64(off.vbmeta);
vbmeta->flags = __builtin_bswap32(3);
if (!check_env("KEEPVBMETAFLAG")) {
vbmeta->flags = __builtin_bswap32(3);
}
}
if (boot.flags[DHTB_FLAG]) {

22
native/jni/magiskboot/main.cpp
View File

@ -6,7 +6,7 @@
using namespace std;
static void print_methods() {
static void print_formats() {
for (int fmt = GZIP; fmt < LZOP; ++fmt) {
fprintf(stderr, "%s ", fmt2name[(format_t) fmt]);
}
@ -33,8 +33,10 @@ Supported actions:
Repack boot image components from current directory
to [outbootimg], or new-boot.img if not specified.
If '-n' is provided, it will not attempt to recompress ramdisk.cpio,
otherwise it will compress ramdisk.cpio and kernel with the same method
in <origbootimg> if the file provided is not already compressed.
otherwise it will compress ramdisk.cpio and kernel with the same format
as in <origbootimg> if the file provided is not already compressed.
All disable flags will be set in the vbmeta header, unless env variable
KEEPVBMETAFLAG is set to true.
hexpatch <file> <hexpattern1> <hexpattern2>
Search <hexpattern1> in <file>, and replace with <hexpattern2>
@ -91,21 +93,21 @@ Supported actions:
cleanup
Cleanup the current working directory
compress[=method] <infile> [outfile]
Compress <infile> with [method] (default: gzip), optionally to [outfile]
compress[=format] <infile> [outfile]
Compress <infile> with [format] (default: gzip), optionally to [outfile]
<infile>/[outfile] can be '-' to be STDIN/STDOUT
Supported methods: )EOF", arg0);
Supported formats: )EOF", arg0);
print_methods();
print_formats();
fprintf(stderr, R"EOF(
decompress <infile> [outfile]
Detect method and decompress <infile>, optionally to [outfile]
Detect format and decompress <infile>, optionally to [outfile]
<infile>/[outfile] can be '-' to be STDIN/STDOUT
Supported methods: )EOF");
Supported formats: )EOF");
print_methods();
print_formats();
fprintf(stderr, "\n\n");
exit(1);