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Merge pull request #14 from revanced/page-align-libraries

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page-align native libraries
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REAndroid 2023-03-14 11:20:05 -04:00 committed by GitHub
commit 6109abb4ac
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1 changed files with 8 additions and 2 deletions
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10
src/main/java/com/reandroid/archive/ZipAlign.java
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@ -31,6 +31,7 @@ public class ZipAlign {
private static final int ZIP_ENTRY_USES_DATA_DESCR = 0x0008;
private static final int ZIP_ENTRY_DATA_DESCRIPTOR_LEN = 16;
private static final int ALIGNMENT_4 = 4;
private static final int ALIGNMENT_PAGE = 4096;
private static class XEntry {
public final ZipEntry entry;
@ -118,6 +119,7 @@ public class ZipAlign {
final Enumeration<?> entries = mZipFile.entries();
while (entries.hasMoreElements()) {
final ZipEntry entry = (ZipEntry) entries.nextElement();
final String name = entry.getName();
int flags = entry.getMethod() == ZipEntry.STORED ? 0 : 1 << 3;
flags |= 1 << 11;
@ -125,7 +127,7 @@ public class ZipAlign {
final long outputEntryHeaderOffset = mOutputStream.totalWritten;
final int inputEntryHeaderSize = ZIP_ENTRY_HEADER_LEN + (entry.getExtra() != null ? entry.getExtra().length : 0)
+ entry.getName().getBytes(StandardCharsets.UTF_8).length;
+ name.getBytes(StandardCharsets.UTF_8).length;
final long inputEntryDataOffset = mInputFileOffset + inputEntryHeaderSize;
final int padding;
@ -133,8 +135,12 @@ public class ZipAlign {
if (entry.getMethod() != ZipEntry.STORED) {
padding = 0;
} else {
int alignment = mAlignment;
if (name.startsWith("lib/") && name.endsWith(".so")) {
alignment = ALIGNMENT_PAGE;
}
long newOffset = inputEntryDataOffset + mTotalPadding;
padding = (int) ((mAlignment - (newOffset % mAlignment)) % mAlignment);
padding = (int) ((alignment - (newOffset % alignment)) % alignment);
mTotalPadding += padding;
}