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Clean up API class.

This commit is contained in:
Andy Nguyen 2021-11-03 17:08:43 +01:00
parent 18118ff574
commit 39ab5ea346
1 changed files with 16 additions and 16 deletions
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32
com/bdjb/API.java
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@ -44,10 +44,10 @@ public final class API {
private static final String FIND_ENTRY_METHOD_NAME = "findEntry"; private static final String FIND_ENTRY_METHOD_NAME = "findEntry";
private static final String HANDLE_FIELD_NAME = "handle"; private static final String HANDLE_FIELD_NAME = "handle";
private static final int[] MULTI_NEW_ARRAY_DIMENSIONS = new int[] {1};
private static final String VALUE_FIELD_NAME = "value"; private static final String VALUE_FIELD_NAME = "value";
private static final int[] MULTI_NEW_ARRAY_DIMENSIONS = new int[] {1};
private static API instance; private static API instance;
private UnsafeInterface unsafe; private UnsafeInterface unsafe;
@ -227,7 +227,7 @@ public final class API {
private void buildContext( private void buildContext(
long contextBuf, long contextBuf,
long setJmpBuf, long jmpBuf,
long rip, long rip,
long rdi, long rdi,
long rsi, long rsi,
@ -235,13 +235,13 @@ public final class API {
long rcx, long rcx,
long r8, long r8,
long r9) { long r9) {
long rbx = read64(setJmpBuf + 0x08); long rbx = read64(jmpBuf + 0x08);
long rsp = read64(setJmpBuf + 0x10); long rsp = read64(jmpBuf + 0x10);
long rbp = read64(setJmpBuf + 0x18); long rbp = read64(jmpBuf + 0x18);
long r12 = read64(setJmpBuf + 0x20); long r12 = read64(jmpBuf + 0x20);
long r13 = read64(setJmpBuf + 0x28); long r13 = read64(jmpBuf + 0x28);
long r14 = read64(setJmpBuf + 0x30); long r14 = read64(jmpBuf + 0x30);
long r15 = read64(setJmpBuf + 0x38); long r15 = read64(jmpBuf + 0x38);
write64(contextBuf + 0x48, rdi); write64(contextBuf + 0x48, rdi);
write64(contextBuf + 0x50, rsi); write64(contextBuf + 0x50, rsi);
@ -264,7 +264,7 @@ public final class API {
public void train() { public void train() {
for (int i = 0; i < 10000; i++) { for (int i = 0; i < 10000; i++) {
call(-1); call(0);
} }
} }
@ -286,11 +286,11 @@ public final class API {
try { try {
long ret = 0; long ret = 0;
// When func is -1, only do one iteration to avoid calling __Ux86_64_setcontext. // When func is 0, only do one iteration to avoid calling __Ux86_64_setcontext.
// This is used to "train" this function to kick in optimization early. Otherwise, it is // This is used to "train" this function to kick in optimization early. Otherwise, it is
// possible that optimization kicks in between the calls to setjmp and __Ux86_64_setcontext // possible that optimization kicks in between the calls to setjmp and __Ux86_64_setcontext
// leading to different stack layouts of the two calls. // leading to different stack layouts of the two calls.
int iter = func == -1 ? 1 : 2; int iter = func == 0 ? 1 : 2;
if (jdk11) { if (jdk11) {
write64(fakeClassOop + 0x00, fakeClass); write64(fakeClassOop + 0x00, fakeClass);
@ -398,9 +398,9 @@ public final class API {
} }
public long addrof(Object obj) { public long addrof(Object obj) {
Long longValue = new Long(1337); Long val = new Long(1337);
unsafe.putObject(longValue, longValueOffset, obj); unsafe.putObject(val, longValueOffset, obj);
return unsafe.getLong(longValue, longValueOffset); return unsafe.getLong(val, longValueOffset);
} }
public byte read8(long addr) { public byte read8(long addr) {