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gerrit-public.fairphone.software / platform / art / 22940241f945710613c2657f9d6161302bed935d / . / dexdump / dexdump.cc
blob: a412938ce439633efc55e6799931ca7d047ef49e [file] [log] [blame]
/*
* Copyright (C) 2015 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Implementation file of the dexdump utility.
*
* This is a re-implementation of the original dexdump utility that was
* based on Dalvik functions in libdex into a new dexdump that is now
* based on Art functions in libart instead. The output is very similar to
* to the original for correct DEX files. Error messages may differ, however.
* Also, ODEX files are no longer supported.
*
* The dexdump tool is intended to mimic objdump. When possible, use
* similar command-line arguments.
*
* Differences between XML output and the "current.xml" file:
* - classes in same package are not all grouped together; nothing is sorted
* - no "deprecated" on fields and methods
* - no parameter names
* - no generic signatures on parameters, e.g. type="java.lang.Class<?>"
* - class shows declared fields and methods; does not show inherited fields
*/
#include "dexdump.h"
#include <inttypes.h>
#include <stdio.h>
#include <memory>
#include <sstream>
#include <vector>
#include "android-base/file.h"
#include "android-base/logging.h"
#include "android-base/stringprintf.h"
#include "dex/class_accessor-inl.h"
#include "dex/code_item_accessors-inl.h"
#include "dex/dex_file-inl.h"
#include "dex/dex_file_exception_helpers.h"
#include "dex/dex_file_loader.h"
#include "dex/dex_file_types.h"
#include "dex/dex_instruction-inl.h"
#include "dexdump_cfg.h"
namespace art {
/*
* Options parsed in main driver.
*/
struct Options gOptions;
/*
* Output file. Defaults to stdout.
*/
FILE* gOutFile = stdout;
/*
* Data types that match the definitions in the VM specification.
*/
using u1 = uint8_t;
using u2 = uint16_t;
using u4 = uint32_t;
using u8 = uint64_t;
using s1 = int8_t;
using s2 = int16_t;
using s4 = int32_t;
using s8 = int64_t;
/*
* Basic information about a field or a method.
*/
struct FieldMethodInfo {
const char* classDescriptor;
const char* name;
const char* signature;
};
/*
* Flags for use with createAccessFlagStr().
*/
enum AccessFor {
kAccessForClass = 0, kAccessForMethod = 1, kAccessForField = 2, kAccessForMAX
};
const int kNumFlags = 18;
/*
* Gets 2 little-endian bytes.
*/
static inline u2 get2LE(unsigned char const* pSrc) {
return pSrc[0] | (pSrc[1] << 8);
}
/*
* Converts a single-character primitive type into human-readable form.
*/
static const char* primitiveTypeLabel(char typeChar) {
switch (typeChar) {
case 'B': return "byte";
case 'C': return "char";
case 'D': return "double";
case 'F': return "float";
case 'I': return "int";
case 'J': return "long";
case 'S': return "short";
case 'V': return "void";
case 'Z': return "boolean";
default: return "UNKNOWN";
} // switch
}
/*
* Converts a type descriptor to human-readable "dotted" form. For
* example, "Ljava/lang/String;" becomes "java.lang.String", and
* "[I" becomes "int[]".
*/
static std::unique_ptr<char[]> descriptorToDot(const char* str) {
int targetLen = strlen(str);
int offset = 0;
// Strip leading [s; will be added to end.
while (targetLen > 1 && str[offset] == '[') {
offset++;
targetLen--;
} // while
const int arrayDepth = offset;
if (targetLen == 1) {
// Primitive type.
str = primitiveTypeLabel(str[offset]);
offset = 0;
targetLen = strlen(str);
} else {
// Account for leading 'L' and trailing ';'.
if (targetLen >= 2 && str[offset] == 'L' &&
str[offset + targetLen - 1] == ';') {
targetLen -= 2;
offset++;
}
}
// Copy class name over.
std::unique_ptr<char[]> newStr(new char[targetLen + arrayDepth * 2 + 1]);
int i = 0;
for (; i < targetLen; i++) {
const char ch = str[offset + i];
newStr[i] = (ch == '/') ? '.' : ch;
} // for
// Add the appropriate number of brackets for arrays.
for (int j = 0; j < arrayDepth; j++) {
newStr[i++] = '[';
newStr[i++] = ']';
} // for
newStr[i] = '\0';
return newStr;
}
/*
* Retrieves the class name portion of a type descriptor.
*/
static std::unique_ptr<char[]> descriptorClassToName(const char* str) {
// Reduce to just the class name prefix.
const char* lastSlash = strrchr(str, '/');
if (lastSlash == nullptr) {
lastSlash = str + 1; // start past 'L'
} else {
lastSlash++; // start past '/'
}
// Copy class name over, trimming trailing ';'.
const int targetLen = strlen(lastSlash);
std::unique_ptr<char[]> newStr(new char[targetLen]);
for (int i = 0; i < targetLen - 1; i++) {
newStr[i] = lastSlash[i];
} // for
newStr[targetLen - 1] = '\0';
return newStr;
}
/*
* Returns string representing the boolean value.
*/
static const char* strBool(bool val) {
return val ? "true" : "false";
}
/*
* Returns a quoted string representing the boolean value.
*/
static const char* quotedBool(bool val) {
return val ? "\"true\"" : "\"false\"";
}
/*
* Returns a quoted string representing the access flags.
*/
static const char* quotedVisibility(u4 accessFlags) {
if (accessFlags & kAccPublic) {
return "\"public\"";
} else if (accessFlags & kAccProtected) {
return "\"protected\"";
} else if (accessFlags & kAccPrivate) {
return "\"private\"";
} else {
return "\"package\"";
}
}
/*
* Counts the number of '1' bits in a word.
*/
static int countOnes(u4 val) {
val = val - ((val >> 1) & 0x55555555);
val = (val & 0x33333333) + ((val >> 2) & 0x33333333);
return (((val + (val >> 4)) & 0x0F0F0F0F) * 0x01010101) >> 24;
}
/*
* Creates a new string with human-readable access flags.
*
* In the base language the access_flags fields are type u2; in Dalvik
* they're u4.
*/
static char* createAccessFlagStr(u4 flags, AccessFor forWhat) {
static const char* kAccessStrings[kAccessForMAX][kNumFlags] = {
{
"PUBLIC", /* 0x00001 */
"PRIVATE", /* 0x00002 */
"PROTECTED", /* 0x00004 */
"STATIC", /* 0x00008 */
"FINAL", /* 0x00010 */
"?", /* 0x00020 */
"?", /* 0x00040 */
"?", /* 0x00080 */
"?", /* 0x00100 */
"INTERFACE", /* 0x00200 */
"ABSTRACT", /* 0x00400 */
"?", /* 0x00800 */
"SYNTHETIC", /* 0x01000 */
"ANNOTATION", /* 0x02000 */
"ENUM", /* 0x04000 */
"?", /* 0x08000 */
"VERIFIED", /* 0x10000 */
"OPTIMIZED", /* 0x20000 */
}, {
"PUBLIC", /* 0x00001 */
"PRIVATE", /* 0x00002 */
"PROTECTED", /* 0x00004 */
"STATIC", /* 0x00008 */
"FINAL", /* 0x00010 */
"SYNCHRONIZED", /* 0x00020 */
"BRIDGE", /* 0x00040 */
"VARARGS", /* 0x00080 */
"NATIVE", /* 0x00100 */
"?", /* 0x00200 */
"ABSTRACT", /* 0x00400 */
"STRICT", /* 0x00800 */
"SYNTHETIC", /* 0x01000 */
"?", /* 0x02000 */
"?", /* 0x04000 */
"MIRANDA", /* 0x08000 */
"CONSTRUCTOR", /* 0x10000 */
"DECLARED_SYNCHRONIZED", /* 0x20000 */
}, {
"PUBLIC", /* 0x00001 */
"PRIVATE", /* 0x00002 */
"PROTECTED", /* 0x00004 */
"STATIC", /* 0x00008 */
"FINAL", /* 0x00010 */
"?", /* 0x00020 */
"VOLATILE", /* 0x00040 */
"TRANSIENT", /* 0x00080 */
"?", /* 0x00100 */
"?", /* 0x00200 */
"?", /* 0x00400 */
"?", /* 0x00800 */
"SYNTHETIC", /* 0x01000 */
"?", /* 0x02000 */
"ENUM", /* 0x04000 */
"?", /* 0x08000 */
"?", /* 0x10000 */
"?", /* 0x20000 */
},
};
// Allocate enough storage to hold the expected number of strings,
// plus a space between each. We over-allocate, using the longest
// string above as the base metric.
const int kLongest = 21; // The strlen of longest string above.
const int count = countOnes(flags);
char* str;
char* cp;
cp = str = reinterpret_cast<char*>(malloc(count * (kLongest + 1) + 1));
for (int i = 0; i < kNumFlags; i++) {
if (flags & 0x01) {
const char* accessStr = kAccessStrings[forWhat][i];
const int len = strlen(accessStr);
if (cp != str) {
*cp++ = ' ';
}
memcpy(cp, accessStr, len);
cp += len;
}
flags >>= 1;
} // for
*cp = '\0';
return str;
}
/*
* Copies character data from "data" to "out", converting non-ASCII values
* to fprintf format chars or an ASCII filler ('.' or '?').
*
* The output buffer must be able to hold (2*len)+1 bytes. The result is
* NULL-terminated.
*/
static void asciify(char* out, const unsigned char* data, size_t len) {
for (; len != 0u; --len) {
if (*data < 0x20) {
// Could do more here, but we don't need them yet.
switch (*data) {
case '\0':
*out++ = '\\';
*out++ = '0';
break;
case '\n':
*out++ = '\\';
*out++ = 'n';
break;
default:
*out++ = '.';
break;
} // switch
} else if (*data >= 0x80) {
*out++ = '?';
} else {
*out++ = *data;
}
data++;
} // while
*out = '\0';
}
/*
* Dumps a string value with some escape characters.
*/
static void dumpEscapedString(const char* p) {
fputs("\"", gOutFile);
for (; *p; p++) {
switch (*p) {
case '\\':
fputs("\\\\", gOutFile);
break;
case '\"':
fputs("\\\"", gOutFile);
break;
case '\t':
fputs("\\t", gOutFile);
break;
case '\n':
fputs("\\n", gOutFile);
break;
case '\r':
fputs("\\r", gOutFile);
break;
default:
putc(*p, gOutFile);
} // switch
} // for
fputs("\"", gOutFile);
}
/*
* Dumps a string as an XML attribute value.
*/
static void dumpXmlAttribute(const char* p) {
for (; *p; p++) {
switch (*p) {
case '&':
fputs("&amp;", gOutFile);
break;
case '<':
fputs("&lt;", gOutFile);
break;
case '>':
fputs("&gt;", gOutFile);
break;
case '"':
fputs("&quot;", gOutFile);
break;
case '\t':
fputs("&#x9;", gOutFile);
break;
case '\n':
fputs("&#xA;", gOutFile);
break;
case '\r':
fputs("&#xD;", gOutFile);
break;
default:
putc(*p, gOutFile);
} // switch
} // for
}
/*
* Reads variable width value, possibly sign extended at the last defined byte.
*/
static u8 readVarWidth(const u1** data, u1 arg, bool sign_extend) {
u8 value = 0;
for (u4 i = 0; i <= arg; i++) {
value |= static_cast<u8>(*(*data)++) << (i * 8);
}
if (sign_extend) {
int shift = (7 - arg) * 8;
return (static_cast<s8>(value) << shift) >> shift;
}
return value;
}
/*
* Dumps encoded value.
*/
static void dumpEncodedValue(const DexFile* pDexFile, const u1** data); // forward
static void dumpEncodedValue(const DexFile* pDexFile, const u1** data, u1 type, u1 arg) {
switch (type) {
case DexFile::kDexAnnotationByte:
fprintf(gOutFile, "%" PRId8, static_cast<s1>(readVarWidth(data, arg, false)));
break;
case DexFile::kDexAnnotationShort:
fprintf(gOutFile, "%" PRId16, static_cast<s2>(readVarWidth(data, arg, true)));
break;
case DexFile::kDexAnnotationChar:
fprintf(gOutFile, "%" PRIu16, static_cast<u2>(readVarWidth(data, arg, false)));
break;
case DexFile::kDexAnnotationInt:
fprintf(gOutFile, "%" PRId32, static_cast<s4>(readVarWidth(data, arg, true)));
break;
case DexFile::kDexAnnotationLong:
fprintf(gOutFile, "%" PRId64, static_cast<s8>(readVarWidth(data, arg, true)));
break;
case DexFile::kDexAnnotationFloat: {
// Fill on right.
union {
float f;
u4 data;
} conv;
conv.data = static_cast<u4>(readVarWidth(data, arg, false)) << (3 - arg) * 8;
fprintf(gOutFile, "%g", conv.f);
break;
}
case DexFile::kDexAnnotationDouble: {
// Fill on right.
union {
double d;
u8 data;
} conv;
conv.data = readVarWidth(data, arg, false) << (7 - arg) * 8;
fprintf(gOutFile, "%g", conv.d);
break;
}
case DexFile::kDexAnnotationString: {
const u4 idx = static_cast<u4>(readVarWidth(data, arg, false));
if (gOptions.outputFormat == OUTPUT_PLAIN) {
dumpEscapedString(pDexFile->StringDataByIdx(dex::StringIndex(idx)));
} else {
dumpXmlAttribute(pDexFile->StringDataByIdx(dex::StringIndex(idx)));
}
break;
}
case DexFile::kDexAnnotationType: {
const u4 str_idx = static_cast<u4>(readVarWidth(data, arg, false));
fputs(pDexFile->StringByTypeIdx(dex::TypeIndex(str_idx)), gOutFile);
break;
}
case DexFile::kDexAnnotationField:
case DexFile::kDexAnnotationEnum: {
const u4 field_idx = static_cast<u4>(readVarWidth(data, arg, false));
const dex::FieldId& pFieldId = pDexFile->GetFieldId(field_idx);
fputs(pDexFile->StringDataByIdx(pFieldId.name_idx_), gOutFile);
break;
}
case DexFile::kDexAnnotationMethod: {
const u4 method_idx = static_cast<u4>(readVarWidth(data, arg, false));
const dex::MethodId& pMethodId = pDexFile->GetMethodId(method_idx);
fputs(pDexFile->StringDataByIdx(pMethodId.name_idx_), gOutFile);
break;
}
case DexFile::kDexAnnotationArray: {
fputc('{', gOutFile);
// Decode and display all elements.
const u4 size = DecodeUnsignedLeb128(data);
for (u4 i = 0; i < size; i++) {
fputc(' ', gOutFile);
dumpEncodedValue(pDexFile, data);
}
fputs(" }", gOutFile);
break;
}
case DexFile::kDexAnnotationAnnotation: {
const u4 type_idx = DecodeUnsignedLeb128(data);
fputs(pDexFile->StringByTypeIdx(dex::TypeIndex(type_idx)), gOutFile);
// Decode and display all name=value pairs.
const u4 size = DecodeUnsignedLeb128(data);
for (u4 i = 0; i < size; i++) {
const u4 name_idx = DecodeUnsignedLeb128(data);
fputc(' ', gOutFile);
fputs(pDexFile->StringDataByIdx(dex::StringIndex(name_idx)), gOutFile);
fputc('=', gOutFile);
dumpEncodedValue(pDexFile, data);
}
break;
}
case DexFile::kDexAnnotationNull:
fputs("null", gOutFile);
break;
case DexFile::kDexAnnotationBoolean:
fputs(strBool(arg), gOutFile);
break;
default:
fputs("????", gOutFile);
break;
} // switch
}
/*
* Dumps encoded value with prefix.
*/
static void dumpEncodedValue(const DexFile* pDexFile, const u1** data) {
const u1 enc = *(*data)++;
dumpEncodedValue(pDexFile, data, enc & 0x1f, enc >> 5);
}
/*
* Dumps the file header.
*/
static void dumpFileHeader(const DexFile* pDexFile) {
const DexFile::Header& pHeader = pDexFile->GetHeader();
char sanitized[sizeof(pHeader.magic_) * 2 + 1];
fprintf(gOutFile, "DEX file header:\n");
asciify(sanitized, pHeader.magic_, sizeof(pHeader.magic_));
fprintf(gOutFile, "magic : '%s'\n", sanitized);
fprintf(gOutFile, "checksum : %08x\n", pHeader.checksum_);
fprintf(gOutFile, "signature : %02x%02x...%02x%02x\n",
pHeader.signature_[0], pHeader.signature_[1],
pHeader.signature_[DexFile::kSha1DigestSize - 2],
pHeader.signature_[DexFile::kSha1DigestSize - 1]);
fprintf(gOutFile, "file_size : %d\n", pHeader.file_size_);
fprintf(gOutFile, "header_size : %d\n", pHeader.header_size_);
fprintf(gOutFile, "link_size : %d\n", pHeader.link_size_);
fprintf(gOutFile, "link_off : %d (0x%06x)\n",
pHeader.link_off_, pHeader.link_off_);
fprintf(gOutFile, "string_ids_size : %d\n", pHeader.string_ids_size_);
fprintf(gOutFile, "string_ids_off : %d (0x%06x)\n",
pHeader.string_ids_off_, pHeader.string_ids_off_);
fprintf(gOutFile, "type_ids_size : %d\n", pHeader.type_ids_size_);
fprintf(gOutFile, "type_ids_off : %d (0x%06x)\n",
pHeader.type_ids_off_, pHeader.type_ids_off_);
fprintf(gOutFile, "proto_ids_size : %d\n", pHeader.proto_ids_size_);
fprintf(gOutFile, "proto_ids_off : %d (0x%06x)\n",
pHeader.proto_ids_off_, pHeader.proto_ids_off_);
fprintf(gOutFile, "field_ids_size : %d\n", pHeader.field_ids_size_);
fprintf(gOutFile, "field_ids_off : %d (0x%06x)\n",
pHeader.field_ids_off_, pHeader.field_ids_off_);
fprintf(gOutFile, "method_ids_size : %d\n", pHeader.method_ids_size_);
fprintf(gOutFile, "method_ids_off : %d (0x%06x)\n",
pHeader.method_ids_off_, pHeader.method_ids_off_);
fprintf(gOutFile, "class_defs_size : %d\n", pHeader.class_defs_size_);
fprintf(gOutFile, "class_defs_off : %d (0x%06x)\n",
pHeader.class_defs_off_, pHeader.class_defs_off_);
fprintf(gOutFile, "data_size : %d\n", pHeader.data_size_);
fprintf(gOutFile, "data_off : %d (0x%06x)\n\n",
pHeader.data_off_, pHeader.data_off_);
}
/*
* Dumps a class_def_item.
*/
static void dumpClassDef(const DexFile* pDexFile, int idx) {
// General class information.
const dex::ClassDef& pClassDef = pDexFile->GetClassDef(idx);
fprintf(gOutFile, "Class #%d header:\n", idx);
fprintf(gOutFile, "class_idx : %d\n", pClassDef.class_idx_.index_);
fprintf(gOutFile, "access_flags : %d (0x%04x)\n",
pClassDef.access_flags_, pClassDef.access_flags_);
fprintf(gOutFile, "superclass_idx : %d\n", pClassDef.superclass_idx_.index_);
fprintf(gOutFile, "interfaces_off : %d (0x%06x)\n",
pClassDef.interfaces_off_, pClassDef.interfaces_off_);
fprintf(gOutFile, "source_file_idx : %d\n", pClassDef.source_file_idx_.index_);
fprintf(gOutFile, "annotations_off : %d (0x%06x)\n",
pClassDef.annotations_off_, pClassDef.annotations_off_);
fprintf(gOutFile, "class_data_off : %d (0x%06x)\n",
pClassDef.class_data_off_, pClassDef.class_data_off_);
// Fields and methods.
ClassAccessor accessor(*pDexFile, idx);
fprintf(gOutFile, "static_fields_size : %d\n", accessor.NumStaticFields());
fprintf(gOutFile, "instance_fields_size: %d\n", accessor.NumInstanceFields());
fprintf(gOutFile, "direct_methods_size : %d\n", accessor.NumDirectMethods());
fprintf(gOutFile, "virtual_methods_size: %d\n", accessor.NumVirtualMethods());
fprintf(gOutFile, "\n");
}
/**
* Dumps an annotation set item.
*/
static void dumpAnnotationSetItem(const DexFile* pDexFile, const dex::AnnotationSetItem* set_item) {
if (set_item == nullptr || set_item->size_ == 0) {
fputs(" empty-annotation-set\n", gOutFile);
return;
}
for (u4 i = 0; i < set_item->size_; i++) {
const dex::AnnotationItem* annotation = pDexFile->GetAnnotationItem(set_item, i);
if (annotation == nullptr) {
continue;
}
fputs(" ", gOutFile);
switch (annotation->visibility_) {
case DexFile::kDexVisibilityBuild: fputs("VISIBILITY_BUILD ", gOutFile); break;
case DexFile::kDexVisibilityRuntime: fputs("VISIBILITY_RUNTIME ", gOutFile); break;
case DexFile::kDexVisibilitySystem: fputs("VISIBILITY_SYSTEM ", gOutFile); break;
default: fputs("VISIBILITY_UNKNOWN ", gOutFile); break;
} // switch
// Decode raw bytes in annotation.
const u1* rData = annotation->annotation_;
dumpEncodedValue(pDexFile, &rData, DexFile::kDexAnnotationAnnotation, 0);
fputc('\n', gOutFile);
}
}
/*
* Dumps class annotations.
*/
static void dumpClassAnnotations(const DexFile* pDexFile, int idx) {
const dex::ClassDef& pClassDef = pDexFile->GetClassDef(idx);
const dex::AnnotationsDirectoryItem* dir = pDexFile->GetAnnotationsDirectory(pClassDef);
if (dir == nullptr) {
return; // none
}
fprintf(gOutFile, "Class #%d annotations:\n", idx);
const dex::AnnotationSetItem* class_set_item = pDexFile->GetClassAnnotationSet(dir);
const dex::FieldAnnotationsItem* fields = pDexFile->GetFieldAnnotations(dir);
const dex::MethodAnnotationsItem* methods = pDexFile->GetMethodAnnotations(dir);
const dex::ParameterAnnotationsItem* pars = pDexFile->GetParameterAnnotations(dir);
// Annotations on the class itself.
if (class_set_item != nullptr) {
fprintf(gOutFile, "Annotations on class\n");
dumpAnnotationSetItem(pDexFile, class_set_item);
}
// Annotations on fields.
if (fields != nullptr) {
for (u4 i = 0; i < dir->fields_size_; i++) {
const u4 field_idx = fields[i].field_idx_;
const dex::FieldId& pFieldId = pDexFile->GetFieldId(field_idx);
const char* field_name = pDexFile->StringDataByIdx(pFieldId.name_idx_);
fprintf(gOutFile, "Annotations on field #%u '%s'\n", field_idx, field_name);
dumpAnnotationSetItem(pDexFile, pDexFile->GetFieldAnnotationSetItem(fields[i]));
}
}
// Annotations on methods.
if (methods != nullptr) {
for (u4 i = 0; i < dir->methods_size_; i++) {
const u4 method_idx = methods[i].method_idx_;
const dex::MethodId& pMethodId = pDexFile->GetMethodId(method_idx);
const char* method_name = pDexFile->StringDataByIdx(pMethodId.name_idx_);
fprintf(gOutFile, "Annotations on method #%u '%s'\n", method_idx, method_name);
dumpAnnotationSetItem(pDexFile, pDexFile->GetMethodAnnotationSetItem(methods[i]));
}
}
// Annotations on method parameters.
if (pars != nullptr) {
for (u4 i = 0; i < dir->parameters_size_; i++) {
const u4 method_idx = pars[i].method_idx_;
const dex::MethodId& pMethodId = pDexFile->GetMethodId(method_idx);
const char* method_name = pDexFile->StringDataByIdx(pMethodId.name_idx_);
fprintf(gOutFile, "Annotations on method #%u '%s' parameters\n", method_idx, method_name);
const dex::AnnotationSetRefList*
list = pDexFile->GetParameterAnnotationSetRefList(&pars[i]);
if (list != nullptr) {
for (u4 j = 0; j < list->size_; j++) {
fprintf(gOutFile, "#%u\n", j);
dumpAnnotationSetItem(pDexFile, pDexFile->GetSetRefItemItem(&list->list_[j]));
}
}
}
}
fputc('\n', gOutFile);
}
/*
* Dumps an interface that a class declares to implement.
*/
static void dumpInterface(const DexFile* pDexFile, const dex::TypeItem& pTypeItem, int i) {
const char* interfaceName = pDexFile->StringByTypeIdx(pTypeItem.type_idx_);
if (gOptions.outputFormat == OUTPUT_PLAIN) {
fprintf(gOutFile, " #%d : '%s'\n", i, interfaceName);
} else {
std::unique_ptr<char[]> dot(descriptorToDot(interfaceName));
fprintf(gOutFile, "<implements name=\"%s\">\n</implements>\n", dot.get());
}
}
/*
* Dumps the catches table associated with the code.
*/
static void dumpCatches(const DexFile* pDexFile, const dex::CodeItem* pCode) {
CodeItemDataAccessor accessor(*pDexFile, pCode);
const u4 triesSize = accessor.TriesSize();
// No catch table.
if (triesSize == 0) {
fprintf(gOutFile, " catches : (none)\n");
return;
}
// Dump all table entries.
fprintf(gOutFile, " catches : %d\n", triesSize);
for (const dex::TryItem& try_item : accessor.TryItems()) {
const u4 start = try_item.start_addr_;
const u4 end = start + try_item.insn_count_;
fprintf(gOutFile, " 0x%04x - 0x%04x\n", start, end);
for (CatchHandlerIterator it(accessor, try_item); it.HasNext(); it.Next()) {
const dex::TypeIndex tidx = it.GetHandlerTypeIndex();
const char* descriptor = (!tidx.IsValid()) ? "<any>" : pDexFile->StringByTypeIdx(tidx);
fprintf(gOutFile, " %s -> 0x%04x\n", descriptor, it.GetHandlerAddress());
} // for
} // for
}
/*
* Helper for dumpInstruction(), which builds the string
* representation for the index in the given instruction.
* Returns a pointer to a buffer of sufficient size.
*/
static std::unique_ptr<char[]> indexString(const DexFile* pDexFile,
const Instruction* pDecInsn,
size_t bufSize) {
std::unique_ptr<char[]> buf(new char[bufSize]);
// Determine index and width of the string.
u4 index = 0;
u2 secondary_index = 0;
u4 width = 4;
switch (Instruction::FormatOf(pDecInsn->Opcode())) {
// SOME NOT SUPPORTED:
// case Instruction::k20bc:
case Instruction::k21c:
case Instruction::k35c:
// case Instruction::k35ms:
case Instruction::k3rc:
// case Instruction::k3rms:
// case Instruction::k35mi:
// case Instruction::k3rmi:
index = pDecInsn->VRegB();
width = 4;
break;
case Instruction::k31c:
index = pDecInsn->VRegB();
width = 8;
break;
case Instruction::k22c:
// case Instruction::k22cs:
index = pDecInsn->VRegC();
width = 4;
break;
case Instruction::k45cc:
case Instruction::k4rcc:
index = pDecInsn->VRegB();
secondary_index = pDecInsn->VRegH();
width = 4;
break;
default:
break;
} // switch
// Determine index type.
size_t outSize = 0;
switch (Instruction::IndexTypeOf(pDecInsn->Opcode())) {
case Instruction::kIndexUnknown:
// This function should never get called for this type, but do
// something sensible here, just to help with debugging.
outSize = snprintf(buf.get(), bufSize, "<unknown-index>");
break;
case Instruction::kIndexNone:
// This function should never get called for this type, but do
// something sensible here, just to help with debugging.
outSize = snprintf(buf.get(), bufSize, "<no-index>");
break;
case Instruction::kIndexTypeRef:
if (index < pDexFile->GetHeader().type_ids_size_) {
const char* tp = pDexFile->StringByTypeIdx(dex::TypeIndex(index));
outSize = snprintf(buf.get(), bufSize, "%s // type@%0*x", tp, width, index);
} else {
outSize = snprintf(buf.get(), bufSize, "<type?> // type@%0*x", width, index);
}
break;
case Instruction::kIndexStringRef:
if (index < pDexFile->GetHeader().string_ids_size_) {
const char* st = pDexFile->StringDataByIdx(dex::StringIndex(index));
outSize = snprintf(buf.get(), bufSize, "\"%s\" // string@%0*x", st, width, index);
} else {
outSize = snprintf(buf.get(), bufSize, "<string?> // string@%0*x", width, index);
}
break;
case Instruction::kIndexMethodRef:
if (index < pDexFile->GetHeader().method_ids_size_) {
const dex::MethodId& pMethodId = pDexFile->GetMethodId(index);
const char* name = pDexFile->StringDataByIdx(pMethodId.name_idx_);
const Signature signature = pDexFile->GetMethodSignature(pMethodId);
const char* backDescriptor = pDexFile->StringByTypeIdx(pMethodId.class_idx_);
outSize = snprintf(buf.get(), bufSize, "%s.%s:%s // method@%0*x",
backDescriptor, name, signature.ToString().c_str(), width, index);
} else {
outSize = snprintf(buf.get(), bufSize, "<method?> // method@%0*x", width, index);
}
break;
case Instruction::kIndexFieldRef:
if (index < pDexFile->GetHeader().field_ids_size_) {
const dex::FieldId& pFieldId = pDexFile->GetFieldId(index);
const char* name = pDexFile->StringDataByIdx(pFieldId.name_idx_);
const char* typeDescriptor = pDexFile->StringByTypeIdx(pFieldId.type_idx_);
const char* backDescriptor = pDexFile->StringByTypeIdx(pFieldId.class_idx_);
outSize = snprintf(buf.get(), bufSize, "%s.%s:%s // field@%0*x",
backDescriptor, name, typeDescriptor, width, index);
} else {
outSize = snprintf(buf.get(), bufSize, "<field?> // field@%0*x", width, index);
}
break;
case Instruction::kIndexVtableOffset:
outSize = snprintf(buf.get(), bufSize, "[%0*x] // vtable #%0*x",
width, index, width, index);
break;
case Instruction::kIndexFieldOffset:
outSize = snprintf(buf.get(), bufSize, "[obj+%0*x]", width, index);
break;
case Instruction::kIndexMethodAndProtoRef: {
std::string method("<method?>");
std::string proto("<proto?>");
if (index < pDexFile->GetHeader().method_ids_size_) {
const dex::MethodId& pMethodId = pDexFile->GetMethodId(index);
const char* name = pDexFile->StringDataByIdx(pMethodId.name_idx_);
const Signature signature = pDexFile->GetMethodSignature(pMethodId);
const char* backDescriptor = pDexFile->StringByTypeIdx(pMethodId.class_idx_);
method = android::base::StringPrintf("%s.%s:%s",
backDescriptor,
name,
signature.ToString().c_str());
}
if (secondary_index < pDexFile->GetHeader().proto_ids_size_) {
const dex::ProtoId& protoId = pDexFile->GetProtoId(dex::ProtoIndex(secondary_index));
const Signature signature = pDexFile->GetProtoSignature(protoId);
proto = signature.ToString();
}
outSize = snprintf(buf.get(), bufSize, "%s, %s // method@%0*x, proto@%0*x",
method.c_str(), proto.c_str(), width, index, width, secondary_index);
break;
}
case Instruction::kIndexCallSiteRef:
// Call site information is too large to detail in disassembly so just output the index.
outSize = snprintf(buf.get(), bufSize, "call_site@%0*x", width, index);
break;
case Instruction::kIndexMethodHandleRef:
// Method handle information is too large to detail in disassembly so just output the index.
outSize = snprintf(buf.get(), bufSize, "method_handle@%0*x", width, index);
break;
case Instruction::kIndexProtoRef:
if (index < pDexFile->GetHeader().proto_ids_size_) {
const dex::ProtoId& protoId = pDexFile->GetProtoId(dex::ProtoIndex(index));
const Signature signature = pDexFile->GetProtoSignature(protoId);
const std::string& proto = signature.ToString();
outSize = snprintf(buf.get(), bufSize, "%s // proto@%0*x", proto.c_str(), width, index);
} else {
outSize = snprintf(buf.get(), bufSize, "<?> // proto@%0*x", width, index);
}
break;
} // switch
if (outSize == 0) {
// The index type has not been handled in the switch above.
outSize = snprintf(buf.get(), bufSize, "<?>");
}
// Determine success of string construction.
if (outSize >= bufSize) {
// The buffer wasn't big enough; retry with computed size. Note: snprintf()
// doesn't count/ the '\0' as part of its returned size, so we add explicit
// space for it here.
return indexString(pDexFile, pDecInsn, outSize + 1);
}
return buf;
}
/*
* Dumps a single instruction.
*/
static void dumpInstruction(const DexFile* pDexFile,
const dex::CodeItem* pCode,
u4 codeOffset, u4 insnIdx, u4 insnWidth,
const Instruction* pDecInsn) {
// Address of instruction (expressed as byte offset).
fprintf(gOutFile, "%06x:", codeOffset + 0x10 + insnIdx * 2);
// Dump (part of) raw bytes.
CodeItemInstructionAccessor accessor(*pDexFile, pCode);
for (u4 i = 0; i < 8; i++) {
if (i < insnWidth) {
if (i == 7) {
fprintf(gOutFile, " ... ");
} else {
// Print 16-bit value in little-endian order.
const u1* bytePtr = (const u1*) &accessor.Insns()[insnIdx + i];
fprintf(gOutFile, " %02x%02x", bytePtr[0], bytePtr[1]);
}
} else {
fputs(" ", gOutFile);
}
} // for
// Dump pseudo-instruction or opcode.
if (pDecInsn->Opcode() == Instruction::NOP) {
const u2 instr = get2LE((const u1*) &accessor.Insns()[insnIdx]);
if (instr == Instruction::kPackedSwitchSignature) {
fprintf(gOutFile, "|%04x: packed-switch-data (%d units)", insnIdx, insnWidth);
} else if (instr == Instruction::kSparseSwitchSignature) {
fprintf(gOutFile, "|%04x: sparse-switch-data (%d units)", insnIdx, insnWidth);
} else if (instr == Instruction::kArrayDataSignature) {
fprintf(gOutFile, "|%04x: array-data (%d units)", insnIdx, insnWidth);
} else {
fprintf(gOutFile, "|%04x: nop // spacer", insnIdx);
}
} else {
fprintf(gOutFile, "|%04x: %s", insnIdx, pDecInsn->Name());
}
// Set up additional argument.
std::unique_ptr<char[]> indexBuf;
if (Instruction::IndexTypeOf(pDecInsn->Opcode()) != Instruction::kIndexNone) {
indexBuf = indexString(pDexFile, pDecInsn, 200);
}
// Dump the instruction.
//
// NOTE: pDecInsn->DumpString(pDexFile) differs too much from original.
//
switch (Instruction::FormatOf(pDecInsn->Opcode())) {
case Instruction::k10x: // op
break;
case Instruction::k12x: // op vA, vB
fprintf(gOutFile, " v%d, v%d", pDecInsn->VRegA(), pDecInsn->VRegB());
break;
case Instruction::k11n: // op vA, #+B
fprintf(gOutFile, " v%d, #int %d // #%x",
pDecInsn->VRegA(), (s4) pDecInsn->VRegB(), (u1)pDecInsn->VRegB());
break;
case Instruction::k11x: // op vAA
fprintf(gOutFile, " v%d", pDecInsn->VRegA());
break;
case Instruction::k10t: // op +AA
case Instruction::k20t: { // op +AAAA
const s4 targ = (s4) pDecInsn->VRegA();
fprintf(gOutFile, " %04x // %c%04x",
insnIdx + targ,
(targ < 0) ? '-' : '+',
(targ < 0) ? -targ : targ);
break;
}
case Instruction::k22x: // op vAA, vBBBB
fprintf(gOutFile, " v%d, v%d", pDecInsn->VRegA(), pDecInsn->VRegB());
break;
case Instruction::k21t: { // op vAA, +BBBB
const s4 targ = (s4) pDecInsn->VRegB();
fprintf(gOutFile, " v%d, %04x // %c%04x", pDecInsn->VRegA(),
insnIdx + targ,
(targ < 0) ? '-' : '+',
(targ < 0) ? -targ : targ);
break;
}
case Instruction::k21s: // op vAA, #+BBBB
fprintf(gOutFile, " v%d, #int %d // #%x",
pDecInsn->VRegA(), (s4) pDecInsn->VRegB(), (u2)pDecInsn->VRegB());
break;
case Instruction::k21h: // op vAA, #+BBBB0000[00000000]
// The printed format varies a bit based on the actual opcode.
if (pDecInsn->Opcode() == Instruction::CONST_HIGH16) {
const s4 value = pDecInsn->VRegB() << 16;
fprintf(gOutFile, " v%d, #int %d // #%x",
pDecInsn->VRegA(), value, (u2) pDecInsn->VRegB());
} else {
const s8 value = ((s8) pDecInsn->VRegB()) << 48;
fprintf(gOutFile, " v%d, #long %" PRId64 " // #%x",
pDecInsn->VRegA(), value, (u2) pDecInsn->VRegB());
}
break;
case Instruction::k21c: // op vAA, thing@BBBB
case Instruction::k31c: // op vAA, thing@BBBBBBBB
fprintf(gOutFile, " v%d, %s", pDecInsn->VRegA(), indexBuf.get());
break;
case Instruction::k23x: // op vAA, vBB, vCC
fprintf(gOutFile, " v%d, v%d, v%d",
pDecInsn->VRegA(), pDecInsn->VRegB(), pDecInsn->VRegC());
break;
case Instruction::k22b: // op vAA, vBB, #+CC
fprintf(gOutFile, " v%d, v%d, #int %d // #%02x",
pDecInsn->VRegA(), pDecInsn->VRegB(),
(s4) pDecInsn->VRegC(), (u1) pDecInsn->VRegC());
break;
case Instruction::k22t: { // op vA, vB, +CCCC
const s4 targ = (s4) pDecInsn->VRegC();
fprintf(gOutFile, " v%d, v%d, %04x // %c%04x",
pDecInsn->VRegA(), pDecInsn->VRegB(),
insnIdx + targ,
(targ < 0) ? '-' : '+',
(targ < 0) ? -targ : targ);
break;
}
case Instruction::k22s: // op vA, vB, #+CCCC
fprintf(gOutFile, " v%d, v%d, #int %d // #%04x",
pDecInsn->VRegA(), pDecInsn->VRegB(),
(s4) pDecInsn->VRegC(), (u2) pDecInsn->VRegC());
break;
case Instruction::k22c: // op vA, vB, thing@CCCC
// NOT SUPPORTED:
// case Instruction::k22cs: // [opt] op vA, vB, field offset CCCC
fprintf(gOutFile, " v%d, v%d, %s",
pDecInsn->VRegA(), pDecInsn->VRegB(), indexBuf.get());
break;
case Instruction::k30t:
fprintf(gOutFile, " #%08x", pDecInsn->VRegA());
break;
case Instruction::k31i: { // op vAA, #+BBBBBBBB
// This is often, but not always, a float.
union {
float f;
u4 i;
} conv;
conv.i = pDecInsn->VRegB();
fprintf(gOutFile, " v%d, #float %g // #%08x",
pDecInsn->VRegA(), conv.f, pDecInsn->VRegB());
break;
}
case Instruction::k31t: // op vAA, offset +BBBBBBBB
fprintf(gOutFile, " v%d, %08x // +%08x",
pDecInsn->VRegA(), insnIdx + pDecInsn->VRegB(), pDecInsn->VRegB());
break;
case Instruction::k32x: // op vAAAA, vBBBB
fprintf(gOutFile, " v%d, v%d", pDecInsn->VRegA(), pDecInsn->VRegB());
break;
case Instruction::k35c: // op {vC, vD, vE, vF, vG}, thing@BBBB
case Instruction::k45cc: { // op {vC, vD, vE, vF, vG}, method@BBBB, proto@HHHH
// NOT SUPPORTED:
// case Instruction::k35ms: // [opt] invoke-virtual+super
// case Instruction::k35mi: // [opt] inline invoke
u4 arg[Instruction::kMaxVarArgRegs];
pDecInsn->GetVarArgs(arg);
fputs(" {", gOutFile);
for (int i = 0, n = pDecInsn->VRegA(); i < n; i++) {
if (i == 0) {
fprintf(gOutFile, "v%d", arg[i]);
} else {
fprintf(gOutFile, ", v%d", arg[i]);
}
} // for
fprintf(gOutFile, "}, %s", indexBuf.get());
break;
}
case Instruction::k3rc: // op {vCCCC .. v(CCCC+AA-1)}, thing@BBBB
case Instruction::k4rcc: { // op {vCCCC .. v(CCCC+AA-1)}, method@BBBB, proto@HHHH
// NOT SUPPORTED:
// case Instruction::k3rms: // [opt] invoke-virtual+super/range
// case Instruction::k3rmi: // [opt] execute-inline/range
// This doesn't match the "dx" output when some of the args are
// 64-bit values -- dx only shows the first register.
fputs(" {", gOutFile);
for (int i = 0, n = pDecInsn->VRegA(); i < n; i++) {
if (i == 0) {
fprintf(gOutFile, "v%d", pDecInsn->VRegC() + i);
} else {
fprintf(gOutFile, ", v%d", pDecInsn->VRegC() + i);
}
} // for
fprintf(gOutFile, "}, %s", indexBuf.get());
}
break;
case Instruction::k51l: { // op vAA, #+BBBBBBBBBBBBBBBB
// This is often, but not always, a double.
union {
double d;
u8 j;
} conv;
conv.j = pDecInsn->WideVRegB();
fprintf(gOutFile, " v%d, #double %g // #%016" PRIx64,
pDecInsn->VRegA(), conv.d, pDecInsn->WideVRegB());
break;
}
// NOT SUPPORTED:
// case Instruction::k00x: // unknown op or breakpoint
// break;
default:
fprintf(gOutFile, " ???");
break;
} // switch
fputc('\n', gOutFile);
}
/*
* Dumps a bytecode disassembly.
*/
static void dumpBytecodes(const DexFile* pDexFile, u4 idx,
const dex::CodeItem* pCode, u4 codeOffset) {
const dex::MethodId& pMethodId = pDexFile->GetMethodId(idx);
const char* name = pDexFile->StringDataByIdx(pMethodId.name_idx_);
const Signature signature = pDexFile->GetMethodSignature(pMethodId);
const char* backDescriptor = pDexFile->StringByTypeIdx(pMethodId.class_idx_);
// Generate header.
std::unique_ptr<char[]> dot(descriptorToDot(backDescriptor));
fprintf(gOutFile, "%06x: |[%06x] %s.%s:%s\n",
codeOffset, codeOffset, dot.get(), name, signature.ToString().c_str());
// Iterate over all instructions.
CodeItemDataAccessor accessor(*pDexFile, pCode);
const u4 maxPc = accessor.InsnsSizeInCodeUnits();
for (const DexInstructionPcPair& pair : accessor) {
const u4 dexPc = pair.DexPc();
if (dexPc >= maxPc) {
LOG(WARNING) << "GLITCH: run-away instruction at idx=0x" << std::hex << dexPc;
break;
}
const Instruction* instruction = &pair.Inst();
const u4 insnWidth = instruction->SizeInCodeUnits();
if (insnWidth == 0) {
LOG(WARNING) << "GLITCH: zero-width instruction at idx=0x" << std::hex << dexPc;
break;
}
dumpInstruction(pDexFile, pCode, codeOffset, dexPc, insnWidth, instruction);
} // for
}
/*
* Dumps code of a method.
*/
static void dumpCode(const DexFile* pDexFile, u4 idx, u4 flags,
const dex::CodeItem* pCode, u4 codeOffset) {
CodeItemDebugInfoAccessor accessor(*pDexFile, pCode, idx);
fprintf(gOutFile, " registers : %d\n", accessor.RegistersSize());
fprintf(gOutFile, " ins : %d\n", accessor.InsSize());
fprintf(gOutFile, " outs : %d\n", accessor.OutsSize());
fprintf(gOutFile, " insns size : %d 16-bit code units\n",
accessor.InsnsSizeInCodeUnits());
// Bytecode disassembly, if requested.
if (gOptions.disassemble) {
dumpBytecodes(pDexFile, idx, pCode, codeOffset);
}
// Try-catch blocks.
dumpCatches(pDexFile, pCode);
// Positions and locals table in the debug info.
bool is_static = (flags & kAccStatic) != 0;
fprintf(gOutFile, " positions : \n");
accessor.DecodeDebugPositionInfo([&](const DexFile::PositionInfo& entry) {
fprintf(gOutFile, " 0x%04x line=%d\n", entry.address_, entry.line_);
return false;
});
fprintf(gOutFile, " locals : \n");
accessor.DecodeDebugLocalInfo(is_static,
idx,
[&](const DexFile::LocalInfo& entry) {
const char* signature = entry.signature_ != nullptr ? entry.signature_ : "";
fprintf(gOutFile,
" 0x%04x - 0x%04x reg=%d %s %s %s\n",
entry.start_address_,
entry.end_address_,
entry.reg_,
entry.name_,
entry.descriptor_,
signature);
});
}
static std::string GetHiddenapiFlagStr(uint32_t hiddenapi_flags) {
std::stringstream ss;
hiddenapi::ApiList api_list(hiddenapi_flags);
api_list.Dump(ss);
std::string str_api_list = ss.str();
std::transform(str_api_list.begin(), str_api_list.end(), str_api_list.begin(), ::toupper);
return str_api_list;
}
/*
* Dumps a method.
*/
static void dumpMethod(const ClassAccessor::Method& method, int i) {
// Bail for anything private if export only requested.
const uint32_t flags = method.GetAccessFlags();
if (gOptions.exportsOnly && (flags & (kAccPublic | kAccProtected)) == 0) {
return;
}
const DexFile& dex_file = method.GetDexFile();
const dex::MethodId& pMethodId = dex_file.GetMethodId(method.GetIndex());
const char* name = dex_file.StringDataByIdx(pMethodId.name_idx_);
const Signature signature = dex_file.GetMethodSignature(pMethodId);
char* typeDescriptor = strdup(signature.ToString().c_str());
const char* backDescriptor = dex_file.StringByTypeIdx(pMethodId.class_idx_);
char* accessStr = createAccessFlagStr(flags, kAccessForMethod);
const uint32_t hiddenapiFlags = method.GetHiddenapiFlags();
if (gOptions.outputFormat == OUTPUT_PLAIN) {
fprintf(gOutFile, " #%d : (in %s)\n", i, backDescriptor);
fprintf(gOutFile, " name : '%s'\n", name);
fprintf(gOutFile, " type : '%s'\n", typeDescriptor);
fprintf(gOutFile, " access : 0x%04x (%s)\n", flags, accessStr);
if (hiddenapiFlags != 0u) {
fprintf(gOutFile,
" hiddenapi : 0x%04x (%s)\n",
hiddenapiFlags,
GetHiddenapiFlagStr(hiddenapiFlags).c_str());
}
if (method.GetCodeItem() == nullptr) {
fprintf(gOutFile, " code : (none)\n");
} else {
fprintf(gOutFile, " code -\n");
dumpCode(&dex_file,
method.GetIndex(),
flags,
method.GetCodeItem(),
method.GetCodeItemOffset());
}
if (gOptions.disassemble) {
fputc('\n', gOutFile);
}
} else if (gOptions.outputFormat == OUTPUT_XML) {
const bool constructor = (name[0] == '<');
// Method name and prototype.
if (constructor) {
std::unique_ptr<char[]> dot(descriptorClassToName(backDescriptor));
fprintf(gOutFile, "<constructor name=\"%s\"\n", dot.get());
dot = descriptorToDot(backDescriptor);
fprintf(gOutFile, " type=\"%s\"\n", dot.get());
} else {
fprintf(gOutFile, "<method name=\"%s\"\n", name);
const char* returnType = strrchr(typeDescriptor, ')');
if (returnType == nullptr) {
LOG(ERROR) << "bad method type descriptor '" << typeDescriptor << "'";
goto bail;
}
std::unique_ptr<char[]> dot(descriptorToDot(returnType + 1));
fprintf(gOutFile, " return=\"%s\"\n", dot.get());
fprintf(gOutFile, " abstract=%s\n", quotedBool((flags & kAccAbstract) != 0));
fprintf(gOutFile, " native=%s\n", quotedBool((flags & kAccNative) != 0));
fprintf(gOutFile, " synchronized=%s\n", quotedBool(
(flags & (kAccSynchronized | kAccDeclaredSynchronized)) != 0));
}
// Additional method flags.
fprintf(gOutFile, " static=%s\n", quotedBool((flags & kAccStatic) != 0));
fprintf(gOutFile, " final=%s\n", quotedBool((flags & kAccFinal) != 0));
// The "deprecated=" not knowable w/o parsing annotations.
fprintf(gOutFile, " visibility=%s\n>\n", quotedVisibility(flags));
// Parameters.
if (typeDescriptor[0] != '(') {
LOG(ERROR) << "ERROR: bad descriptor '" << typeDescriptor << "'";
goto bail;
}
char* tmpBuf = reinterpret_cast<char*>(malloc(strlen(typeDescriptor) + 1));
const char* base = typeDescriptor + 1;
int argNum = 0;
while (*base != ')') {
char* cp = tmpBuf;
while (*base == '[') {
*cp++ = *base++;
}
if (*base == 'L') {
// Copy through ';'.
do {
*cp = *base++;
} while (*cp++ != ';');
} else {
// Primitive char, copy it.
if (strchr("ZBCSIFJD", *base) == nullptr) {
LOG(ERROR) << "ERROR: bad method signature '" << base << "'";
break; // while
}
*cp++ = *base++;
}
// Null terminate and display.
*cp++ = '\0';
std::unique_ptr<char[]> dot(descriptorToDot(tmpBuf));
fprintf(gOutFile, "<parameter name=\"arg%d\" type=\"%s\">\n"
"</parameter>\n", argNum++, dot.get());
} // while
free(tmpBuf);
if (constructor) {
fprintf(gOutFile, "</constructor>\n");
} else {
fprintf(gOutFile, "</method>\n");
}
}
bail:
free(typeDescriptor);
free(accessStr);
}
/*
* Dumps a static or instance (class) field.
*/
static void dumpField(const ClassAccessor::Field& field, int i, const u1** data = nullptr) {
// Bail for anything private if export only requested.
const uint32_t flags = field.GetAccessFlags();
if (gOptions.exportsOnly && (flags & (kAccPublic | kAccProtected)) == 0) {
return;
}
const DexFile& dex_file = field.GetDexFile();
const dex::FieldId& field_id = dex_file.GetFieldId(field.GetIndex());
const char* name = dex_file.StringDataByIdx(field_id.name_idx_);
const char* typeDescriptor = dex_file.StringByTypeIdx(field_id.type_idx_);
const char* backDescriptor = dex_file.StringByTypeIdx(field_id.class_idx_);
char* accessStr = createAccessFlagStr(flags, kAccessForField);
const uint32_t hiddenapiFlags = field.GetHiddenapiFlags();
if (gOptions.outputFormat == OUTPUT_PLAIN) {
fprintf(gOutFile, " #%d : (in %s)\n", i, backDescriptor);
fprintf(gOutFile, " name : '%s'\n", name);
fprintf(gOutFile, " type : '%s'\n", typeDescriptor);
fprintf(gOutFile, " access : 0x%04x (%s)\n", flags, accessStr);
if (hiddenapiFlags != 0u) {
fprintf(gOutFile,
" hiddenapi : 0x%04x (%s)\n",
hiddenapiFlags,
GetHiddenapiFlagStr(hiddenapiFlags).c_str());
}
if (data != nullptr) {
fputs(" value : ", gOutFile);
dumpEncodedValue(&dex_file, data);
fputs("\n", gOutFile);
}
} else if (gOptions.outputFormat == OUTPUT_XML) {
fprintf(gOutFile, "<field name=\"%s\"\n", name);
std::unique_ptr<char[]> dot(descriptorToDot(typeDescriptor));
fprintf(gOutFile, " type=\"%s\"\n", dot.get());
fprintf(gOutFile, " transient=%s\n", quotedBool((flags & kAccTransient) != 0));
fprintf(gOutFile, " volatile=%s\n", quotedBool((flags & kAccVolatile) != 0));
// The "value=" is not knowable w/o parsing annotations.
fprintf(gOutFile, " static=%s\n", quotedBool((flags & kAccStatic) != 0));
fprintf(gOutFile, " final=%s\n", quotedBool((flags & kAccFinal) != 0));
// The "deprecated=" is not knowable w/o parsing annotations.
fprintf(gOutFile, " visibility=%s\n", quotedVisibility(flags));
if (data != nullptr) {
fputs(" value=\"", gOutFile);
dumpEncodedValue(&dex_file, data);
fputs("\"\n", gOutFile);
}
fputs(">\n</field>\n", gOutFile);
}
free(accessStr);
}
/*
* Dumping a CFG.
*/
static void dumpCfg(const DexFile* dex_file, int idx) {
ClassAccessor accessor(*dex_file, dex_file->GetClassDef(idx));
for (const ClassAccessor::Method& method : accessor.GetMethods()) {
if (method.GetCodeItem() != nullptr) {
std::ostringstream oss;
DumpMethodCFG(method, oss);
fputs(oss.str().c_str(), gOutFile);
}
}
}
/*
* Dumps the class.
*
* Note "idx" is a DexClassDef index, not a DexTypeId index.
*
* If "*pLastPackage" is nullptr or does not match the current class' package,
* the value will be replaced with a newly-allocated string.
*/
static void dumpClass(const DexFile* pDexFile, int idx, char** pLastPackage) {
const dex::ClassDef& pClassDef = pDexFile->GetClassDef(idx);
// Omitting non-public class.
if (gOptions.exportsOnly && (pClassDef.access_flags_ & kAccPublic) == 0) {
return;
}
if (gOptions.showSectionHeaders) {
dumpClassDef(pDexFile, idx);
}
if (gOptions.showAnnotations) {
dumpClassAnnotations(pDexFile, idx);
}
if (gOptions.showCfg) {
dumpCfg(pDexFile, idx);
return;
}
// For the XML output, show the package name. Ideally we'd gather
// up the classes, sort them, and dump them alphabetically so the
// package name wouldn't jump around, but that's not a great plan
// for something that needs to run on the device.
const char* classDescriptor = pDexFile->StringByTypeIdx(pClassDef.class_idx_);
if (!(classDescriptor[0] == 'L' &&
classDescriptor[strlen(classDescriptor)-1] == ';')) {
// Arrays and primitives should not be defined explicitly. Keep going?
LOG(WARNING) << "Malformed class name '" << classDescriptor << "'";
} else if (gOptions.outputFormat == OUTPUT_XML) {
char* mangle = strdup(classDescriptor + 1);
mangle[strlen(mangle)-1] = '\0';
// Reduce to just the package name.
char* lastSlash = strrchr(mangle, '/');
if (lastSlash != nullptr) {
*lastSlash = '\0';
} else {
*mangle = '\0';
}
for (char* cp = mangle; *cp != '\0'; cp++) {
if (*cp == '/') {
*cp = '.';
}
} // for
if (*pLastPackage == nullptr || strcmp(mangle, *pLastPackage) != 0) {
// Start of a new package.
if (*pLastPackage != nullptr) {
fprintf(gOutFile, "</package>\n");
}
fprintf(gOutFile, "<package name=\"%s\"\n>\n", mangle);
free(*pLastPackage);
*pLastPackage = mangle;
} else {
free(mangle);
}
}
// General class information.
char* accessStr = createAccessFlagStr(pClassDef.access_flags_, kAccessForClass);
const char* superclassDescriptor;
if (!pClassDef.superclass_idx_.IsValid()) {
superclassDescriptor = nullptr;
} else {
superclassDescriptor = pDexFile->StringByTypeIdx(pClassDef.superclass_idx_);
}
if (gOptions.outputFormat == OUTPUT_PLAIN) {
fprintf(gOutFile, "Class #%d -\n", idx);
fprintf(gOutFile, " Class descriptor : '%s'\n", classDescriptor);
fprintf(gOutFile, " Access flags : 0x%04x (%s)\n", pClassDef.access_flags_, accessStr);
if (superclassDescriptor != nullptr) {
fprintf(gOutFile, " Superclass : '%s'\n", superclassDescriptor);
}
fprintf(gOutFile, " Interfaces -\n");
} else {
std::unique_ptr<char[]> dot(descriptorClassToName(classDescriptor));
fprintf(gOutFile, "<class name=\"%s\"\n", dot.get());
if (superclassDescriptor != nullptr) {
dot = descriptorToDot(superclassDescriptor);
fprintf(gOutFile, " extends=\"%s\"\n", dot.get());
}
fprintf(gOutFile, " interface=%s\n",
quotedBool((pClassDef.access_flags_ & kAccInterface) != 0));
fprintf(gOutFile, " abstract=%s\n", quotedBool((pClassDef.access_flags_ & kAccAbstract) != 0));
fprintf(gOutFile, " static=%s\n", quotedBool((pClassDef.access_flags_ & kAccStatic) != 0));
fprintf(gOutFile, " final=%s\n", quotedBool((pClassDef.access_flags_ & kAccFinal) != 0));
// The "deprecated=" not knowable w/o parsing annotations.
fprintf(gOutFile, " visibility=%s\n", quotedVisibility(pClassDef.access_flags_));
fprintf(gOutFile, ">\n");
}
// Interfaces.
const dex::TypeList* pInterfaces = pDexFile->GetInterfacesList(pClassDef);
if (pInterfaces != nullptr) {
for (u4 i = 0; i < pInterfaces->Size(); i++) {
dumpInterface(pDexFile, pInterfaces->GetTypeItem(i), i);
} // for
}
// Fields and methods.
ClassAccessor accessor(*pDexFile, pClassDef, /* parse_hiddenapi_class_data= */ true);
// Prepare data for static fields.
const u1* sData = pDexFile->GetEncodedStaticFieldValuesArray(pClassDef);
const u4 sSize = sData != nullptr ? DecodeUnsignedLeb128(&sData) : 0;
// Static fields.
if (gOptions.outputFormat == OUTPUT_PLAIN) {
fprintf(gOutFile, " Static fields -\n");
}
uint32_t i = 0u;
for (const ClassAccessor::Field& field : accessor.GetStaticFields()) {
dumpField(field, i, i < sSize ? &sData : nullptr);
++i;
}
// Instance fields.
if (gOptions.outputFormat == OUTPUT_PLAIN) {
fprintf(gOutFile, " Instance fields -\n");
}
i = 0u;
for (const ClassAccessor::Field& field : accessor.GetInstanceFields()) {
dumpField(field, i);
++i;
}
// Direct methods.
if (gOptions.outputFormat == OUTPUT_PLAIN) {
fprintf(gOutFile, " Direct methods -\n");
}
i = 0u;
for (const ClassAccessor::Method& method : accessor.GetDirectMethods()) {
dumpMethod(method, i);
++i;
}
// Virtual methods.
if (gOptions.outputFormat == OUTPUT_PLAIN) {
fprintf(gOutFile, " Virtual methods -\n");
}
i = 0u;
for (const ClassAccessor::Method& method : accessor.GetVirtualMethods()) {
dumpMethod(method, i);
++i;
}
// End of class.
if (gOptions.outputFormat == OUTPUT_PLAIN) {
const char* fileName;
if (pClassDef.source_file_idx_.IsValid()) {
fileName = pDexFile->StringDataByIdx(pClassDef.source_file_idx_);
} else {
fileName = "unknown";
}
fprintf(gOutFile, " source_file_idx : %d (%s)\n\n",
pClassDef.source_file_idx_.index_, fileName);
} else if (gOptions.outputFormat == OUTPUT_XML) {
fprintf(gOutFile, "</class>\n");
}
free(accessStr);
}
static void dumpMethodHandle(const DexFile* pDexFile, u4 idx) {
const dex::MethodHandleItem& mh = pDexFile->GetMethodHandle(idx);
const char* type = nullptr;
bool is_instance = false;
bool is_invoke = false;
switch (static_cast<DexFile::MethodHandleType>(mh.method_handle_type_)) {
case DexFile::MethodHandleType::kStaticPut:
type = "put-static";
is_instance = false;
is_invoke = false;
break;
case DexFile::MethodHandleType::kStaticGet:
type = "get-static";
is_instance = false;
is_invoke = false;
break;
case DexFile::MethodHandleType::kInstancePut:
type = "put-instance";
is_instance = true;
is_invoke = false;
break;
case DexFile::MethodHandleType::kInstanceGet:
type = "get-instance";
is_instance = true;
is_invoke = false;
break;
case DexFile::MethodHandleType::kInvokeStatic:
type = "invoke-static";
is_instance = false;
is_invoke = true;
break;
case DexFile::MethodHandleType::kInvokeInstance:
type = "invoke-instance";
is_instance = true;
is_invoke = true;
break;
case DexFile::MethodHandleType::kInvokeConstructor:
type = "invoke-constructor";
is_instance = true;
is_invoke = true;
break;
case DexFile::MethodHandleType::kInvokeDirect:
type = "invoke-direct";
is_instance = true;
is_invoke = true;
break;
case DexFile::MethodHandleType::kInvokeInterface:
type = "invoke-interface";
is_instance = true;
is_invoke = true;
break;
}
const char* declaring_class;
const char* member;
std::string member_type;
if (type != nullptr) {
if (is_invoke) {
const dex::MethodId& method_id = pDexFile->GetMethodId(mh.field_or_method_idx_);
declaring_class = pDexFile->GetMethodDeclaringClassDescriptor(method_id);
member = pDexFile->GetMethodName(method_id);
member_type = pDexFile->GetMethodSignature(method_id).ToString();
} else {
const dex::FieldId& field_id = pDexFile->GetFieldId(mh.field_or_method_idx_);
declaring_class = pDexFile->GetFieldDeclaringClassDescriptor(field_id);
member = pDexFile->GetFieldName(field_id);
member_type = pDexFile->GetFieldTypeDescriptor(field_id);
}
if (is_instance) {
member_type = android::base::StringPrintf("(%s%s", declaring_class, member_type.c_str() + 1);
}
} else {
type = "?";
declaring_class = "?";
member = "?";
member_type = "?";
}
if (gOptions.outputFormat == OUTPUT_PLAIN) {
fprintf(gOutFile, "Method handle #%u:\n", idx);
fprintf(gOutFile, " type : %s\n", type);
fprintf(gOutFile, " target : %s %s\n", declaring_class, member);
fprintf(gOutFile, " target_type : %s\n", member_type.c_str());
} else {
fprintf(gOutFile, "<method_handle index=\"%u\"\n", idx);
fprintf(gOutFile, " type=\"%s\"\n", type);
fprintf(gOutFile, " target_class=\"%s\"\n", declaring_class);
fprintf(gOutFile, " target_member=\"%s\"\n", member);
fprintf(gOutFile, " target_member_type=");
dumpEscapedString(member_type.c_str());
fprintf(gOutFile, "\n>\n</method_handle>\n");
}
}
static void dumpCallSite(const DexFile* pDexFile, u4 idx) {
const dex::CallSiteIdItem& call_site_id = pDexFile->GetCallSiteId(idx);
CallSiteArrayValueIterator it(*pDexFile, call_site_id);
if (it.Size() < 3) {
LOG(ERROR) << "ERROR: Call site " << idx << " has too few values.";
return;
}
uint32_t method_handle_idx = static_cast<uint32_t>(it.GetJavaValue().i);
it.Next();
dex::StringIndex method_name_idx = static_cast<dex::StringIndex>(it.GetJavaValue().i);
const char* method_name = pDexFile->StringDataByIdx(method_name_idx);
it.Next();
dex::ProtoIndex method_type_idx = static_cast<dex::ProtoIndex>(it.GetJavaValue().i);
const dex::ProtoId& method_type_id = pDexFile->GetProtoId(method_type_idx);
std::string method_type = pDexFile->GetProtoSignature(method_type_id).ToString();
it.Next();
if (gOptions.outputFormat == OUTPUT_PLAIN) {
fprintf(gOutFile, "Call site #%u: // offset %u\n", idx, call_site_id.data_off_);
fprintf(gOutFile, " link_argument[0] : %u (MethodHandle)\n", method_handle_idx);
fprintf(gOutFile, " link_argument[1] : %s (String)\n", method_name);
fprintf(gOutFile, " link_argument[2] : %s (MethodType)\n", method_type.c_str());
} else {
fprintf(gOutFile, "<call_site index=\"%u\" offset=\"%u\">\n", idx, call_site_id.data_off_);
fprintf(gOutFile,
"<link_argument index=\"0\" type=\"MethodHandle\" value=\"%u\"/>\n",
method_handle_idx);
fprintf(gOutFile,
"<link_argument index=\"1\" type=\"String\" values=\"%s\"/>\n",
method_name);
fprintf(gOutFile,
"<link_argument index=\"2\" type=\"MethodType\" value=\"%s\"/>\n",
method_type.c_str());
}
size_t argument = 3;
while (it.HasNext()) {
const char* type;
std::string value;
switch (it.GetValueType()) {
case EncodedArrayValueIterator::ValueType::kByte:
type = "byte";
value = android::base::StringPrintf("%u", it.GetJavaValue().b);
break;
case EncodedArrayValueIterator::ValueType::kShort:
type = "short";
value = android::base::StringPrintf("%d", it.GetJavaValue().s);
break;
case EncodedArrayValueIterator::ValueType::kChar:
type = "char";
value = android::base::StringPrintf("%u", it.GetJavaValue().c);
break;
case EncodedArrayValueIterator::ValueType::kInt:
type = "int";
value = android::base::StringPrintf("%d", it.GetJavaValue().i);
break;
case EncodedArrayValueIterator::ValueType::kLong:
type = "long";
value = android::base::StringPrintf("%" PRId64, it.GetJavaValue().j);
break;
case EncodedArrayValueIterator::ValueType::kFloat:
type = "float";
value = android::base::StringPrintf("%g", it.GetJavaValue().f);
break;
case EncodedArrayValueIterator::ValueType::kDouble:
type = "double";
value = android::base::StringPrintf("%g", it.GetJavaValue().d);
break;
case EncodedArrayValueIterator::ValueType::kMethodType: {
type = "MethodType";
dex::ProtoIndex proto_idx = static_cast<dex::ProtoIndex>(it.GetJavaValue().i);
const dex::ProtoId& proto_id = pDexFile->GetProtoId(proto_idx);
value = pDexFile->GetProtoSignature(proto_id).ToString();
break;
}
case EncodedArrayValueIterator::ValueType::kMethodHandle:
type = "MethodHandle";
value = android::base::StringPrintf("%d", it.GetJavaValue().i);
break;
case EncodedArrayValueIterator::ValueType::kString: {
type = "String";
dex::StringIndex string_idx = static_cast<dex::StringIndex>(it.GetJavaValue().i);
value = pDexFile->StringDataByIdx(string_idx);
break;
}
case EncodedArrayValueIterator::ValueType::kType: {
type = "Class";
dex::TypeIndex type_idx = static_cast<dex::TypeIndex>(it.GetJavaValue().i);
const dex::TypeId& type_id = pDexFile->GetTypeId(type_idx);
value = pDexFile->GetTypeDescriptor(type_id);
break;
}
case EncodedArrayValueIterator::ValueType::kField:
case EncodedArrayValueIterator::ValueType::kMethod:
case EncodedArrayValueIterator::ValueType::kEnum:
case EncodedArrayValueIterator::ValueType::kArray:
case EncodedArrayValueIterator::ValueType::kAnnotation:
// Unreachable based on current EncodedArrayValueIterator::Next().
UNIMPLEMENTED(FATAL) << " type " << it.GetValueType();
UNREACHABLE();
case EncodedArrayValueIterator::ValueType::kNull:
type = "Null";
value = "null";
break;
case EncodedArrayValueIterator::ValueType::kBoolean:
type = "boolean";
value = it.GetJavaValue().z ? "true" : "false";
break;
}
if (gOptions.outputFormat == OUTPUT_PLAIN) {
fprintf(gOutFile, " link_argument[%zu] : %s (%s)\n", argument, value.c_str(), type);
} else {
fprintf(gOutFile, "<link_argument index=\"%zu\" type=\"%s\" value=", argument, type);
dumpEscapedString(value.c_str());
fprintf(gOutFile, "/>\n");
}
it.Next();
argument++;
}
if (gOptions.outputFormat == OUTPUT_XML) {
fprintf(gOutFile, "</call_site>\n");
}
}
/*
* Dumps the requested sections of the file.
*/
static void processDexFile(const char* fileName,
const DexFile* pDexFile, size_t i, size_t n) {
if (gOptions.verbose) {
fputs("Opened '", gOutFile);
fputs(fileName, gOutFile);
if (n > 1) {
fprintf(gOutFile, ":%s", DexFileLoader::GetMultiDexClassesDexName(i).c_str());
}
fprintf(gOutFile, "', DEX version '%.3s'\n", pDexFile->GetHeader().magic_ + 4);
}
// Headers.
if (gOptions.showFileHeaders) {
dumpFileHeader(pDexFile);
}
// Open XML context.
if (gOptions.outputFormat == OUTPUT_XML) {
fprintf(gOutFile, "<api>\n");
}
// Iterate over all classes.
char* package = nullptr;
const u4 classDefsSize = pDexFile->GetHeader().class_defs_size_;
for (u4 j = 0; j < classDefsSize; j++) {
dumpClass(pDexFile, j, &package);
} // for
// Iterate over all method handles.
for (u4 j = 0; j < pDexFile->NumMethodHandles(); ++j) {
dumpMethodHandle(pDexFile, j);
} // for
// Iterate over all call site ids.
for (u4 j = 0; j < pDexFile->NumCallSiteIds(); ++j) {
dumpCallSite(pDexFile, j);
} // for
// Free the last package allocated.
if (package != nullptr) {
fprintf(gOutFile, "</package>\n");
free(package);
}
// Close XML context.
if (gOptions.outputFormat == OUTPUT_XML) {
fprintf(gOutFile, "</api>\n");
}
}
/*
* Processes a single file (either direct .dex or indirect .zip/.jar/.apk).
*/
int processFile(const char* fileName) {
if (gOptions.verbose) {
fprintf(gOutFile, "Processing '%s'...\n", fileName);
}
const bool kVerifyChecksum = !gOptions.ignoreBadChecksum;
const bool kVerify = !gOptions.disableVerifier;
std::string content;
// If the file is not a .dex file, the function tries .zip/.jar/.apk files,
// all of which are Zip archives with "classes.dex" inside.
// TODO: add an api to android::base to read a std::vector<uint8_t>.
if (!android::base::ReadFileToString(fileName, &content)) {
LOG(ERROR) << "ReadFileToString failed";
return -1;
}
const DexFileLoader dex_file_loader;
DexFileLoaderErrorCode error_code;
std::string error_msg;
std::vector<std::unique_ptr<const DexFile>> dex_files;
if (!dex_file_loader.OpenAll(reinterpret_cast<const uint8_t*>(content.data()),
content.size(),
fileName,
kVerify,
kVerifyChecksum,
&error_code,
&error_msg,
&dex_files)) {
// Display returned error message to user. Note that this error behavior
// differs from the error messages shown by the original Dalvik dexdump.
LOG(ERROR) << error_msg;
return -1;
}
// Success. Either report checksum verification or process
// all dex files found in given file.
if (gOptions.checksumOnly) {
fprintf(gOutFile, "Checksum verified\n");
} else {
for (size_t i = 0, n = dex_files.size(); i < n; i++) {
processDexFile(fileName, dex_files[i].get(), i, n);
}
}
return 0;
}
} // namespace art