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Update binary dump method

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This commit is contained in:
topjohnwu 2018-06-10 16:55:00 +08:00
parent 9929e7d8e8
commit 30eb4074cb
2 changed files with 23 additions and 14 deletions
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32
build.py
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@ -42,6 +42,7 @@ else:
ndk_build = os.path.join(os.environ['ANDROID_HOME'], 'ndk-bundle', 'ndk-build')
cpu_count = multiprocessing.cpu_count()
archs = ['armeabi-v7a', 'x86']
def mv(source, target):
try:
@ -79,13 +80,13 @@ def zip_with_msg(zipfile, source, target):
zipfile.write(source, target)
def build_all(args):
build_binary(args)
build_apk(args)
build_binary(args)
zip_main(args)
zip_uninstaller(args)
def collect_binary():
for arch in ['armeabi-v7a', 'x86']:
for arch in archs:
mkdir_p(os.path.join('native', 'out', arch))
for bin in ['magisk', 'magiskinit', 'magiskboot', 'busybox', 'b64xz']:
source = os.path.join('native', 'libs', arch, bin)
@ -139,16 +140,13 @@ def build_binary(args):
flags = base_flags
if 'magiskinit' in targets:
# We need to create dump.h beforehand
if not os.path.exists(os.path.join('native', 'out', 'armeabi-v7a', 'magisk')):
error('Build "magisk" before building "magiskinit"')
for arch in ['armeabi-v7a', 'x86']:
with open(os.path.join('native', 'out', arch, 'dump.h'), 'w') as dump:
dump.write('#include "stdlib.h"\n')
with open(os.path.join('native', 'out', arch, 'magisk'), 'rb') as bin:
dump.write('const uint8_t magisk_dump[] = "')
dump.write(''.join("\\x{:02X}".format(c) for c in lzma.compress(bin.read(), preset=9)))
dump.write('";\n')
for arch in archs:
bin_file = os.path.join('native', 'out', arch, 'magisk')
if not os.path.exists(bin_file):
error('Build "magisk" before building "magiskinit"')
with open(os.path.join('native', 'out', arch, 'binaries_arch_xz.h'), 'w') as out:
with open(bin_file, 'rb') as src:
xz_dump(src, out, 'magisk_xz')
flags += ' B_INIT=1'
other = True
@ -239,8 +237,18 @@ def build_snet(args):
with zipfile.ZipFile(source) as zin:
for item in zin.infolist():
zout.writestr(item.filename, zin.read(item))
rm(source)
header('Output: ' + target)
def xz_dump(src, out, var_name):
out.write('const static unsigned char {}[] = {{'.format(var_name))
for i, c in enumerate(lzma.compress(src.read(), preset=9)):
if i % 16 == 0:
out.write('\n')
out.write('0x{:02X},'.format(c))
out.write('\n};\n')
out.flush()
def gen_update_binary():
update_bin = []
binary = os.path.join('native', 'out', 'armeabi-v7a', 'b64xz')

5
native/jni/core/magiskinit.c
View File

@ -39,7 +39,8 @@
#include <lzma.h>
#include <cil/cil.h>
#include "dump.h"
#include "binaries_arch_xz.h"
#include "magiskrc.h"
#include "utils.h"
#include "magiskpolicy.h"
@ -321,7 +322,7 @@ static int unxz(const void *buf, size_t size, int fd) {
static int dump_magisk(const char *path, mode_t mode) {
unlink(path);
int fd = creat(path, mode);
int ret = unxz(magisk_dump, sizeof(magisk_dump), fd);
int ret = unxz(magisk_xz, sizeof(magisk_xz), fd);
close(fd);
return ret;
}