openkylin
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platform_system_core
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Make the library usable as a library. 

- Add namespace unwindstack everywhere so that it's easier for other
  code to use the library.
- Move some of the header files into include/unwindstack so that they
  can be exposed.
- Modify the headers so that only a limited number need to be exposed.
- Update the tools to use the new headers.
- Add a GetLoadBias() call on the Elf object. This prevents the need
  to get the interface object out of the Elf object.
- Move the GetRelPc() call out of the Reg class, to the Elf class. It's
  not always the case that a Reg object will be around when you want to
  get a relative pc. The tests for this moved to ElfTest.cpp.

Bug: 23762183

Test: Unit tests pass.
Change-Id: Iac609dac1dd90ed83d1a1e24ff2579c96c023bc3
This commit is contained in:
Christopher Ferris 2017-07-14 10:37:19 -07:00
parent b76158d56a
commit d226a51409
78 changed files with 589 additions and 227 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
libunwindstack/Android.bp
View File

@ -44,6 +44,7 @@ cc_defaults {
cc_library {
name: "libunwindstack",
defaults: ["libunwindstack_flags"],
export_include_dirs: ["include"],
srcs: [
"ArmExidx.cpp",

11
libunwindstack/ArmExidx.cpp
View File

@ -21,12 +21,15 @@
#include <android-base/stringprintf.h>
#include <unwindstack/Log.h>
#include <unwindstack/Memory.h>
#include <unwindstack/Regs.h>
#include "ArmExidx.h"
#include "Check.h"
#include "Log.h"
#include "Machine.h"
#include "Memory.h"
#include "Regs.h"
namespace unwindstack {
void ArmExidx::LogRawData() {
std::string log_str("Raw Data:");
@ -684,3 +687,5 @@ bool ArmExidx::Eval() {
while (Decode());
return status_ == ARM_STATUS_FINISH;
}
} // namespace unwindstack

4
libunwindstack/ArmExidx.h
View File

@ -21,6 +21,8 @@
#include <deque>
namespace unwindstack {
// Forward declarations.
class Memory;
class RegsArm;
@ -105,4 +107,6 @@ class ArmExidx {
bool pc_set_ = false;
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_ARM_EXIDX_H

6
libunwindstack/Check.h
View File

@ -19,7 +19,9 @@
#include <stdlib.h>
#include "Log.h"
#include <unwindstack/Log.h>
namespace unwindstack {
#define CHECK(assertion) \
if (__builtin_expect(!(assertion), false)) { \
@ -27,4 +29,6 @@
abort(); \
}
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_ERROR_H

11
libunwindstack/DwarfCfa.cpp
View File

@ -23,12 +23,15 @@
#include <android-base/stringprintf.h>
#include <unwindstack/DwarfLocation.h>
#include <unwindstack/Log.h>
#include "DwarfCfa.h"
#include "DwarfEncoding.h"
#include "DwarfMemory.h"
#include "DwarfError.h"
#include "DwarfOp.h"
#include "DwarfStructs.h"
#include "Log.h"
namespace unwindstack {
template <typename AddressType>
constexpr typename DwarfCfa<AddressType>::process_func DwarfCfa<AddressType>::kCallbackTable[64];
@ -711,3 +714,5 @@ const DwarfCfaInfo::Info DwarfCfaInfo::kTable[64] = {
// Explicitly instantiate DwarfCfa.
template class DwarfCfa<uint32_t>;
template class DwarfCfa<uint64_t>;
} // namespace unwindstack

11
libunwindstack/DwarfCfa.h
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@ -24,10 +24,13 @@
#include <type_traits>
#include <vector>
#include <unwindstack/DwarfLocation.h>
#include <unwindstack/DwarfMemory.h>
#include <unwindstack/DwarfStructs.h>
#include "DwarfError.h"
#include "DwarfLocation.h"
#include "DwarfMemory.h"
#include "DwarfStructs.h"
namespace unwindstack {
// DWARF Standard home: http://dwarfstd.org/
// This code is based on DWARF 4: http://http://dwarfstd.org/doc/DWARF4.pdf
@ -252,4 +255,6 @@ class DwarfCfa {
};
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_DWARF_CFA_H

13
libunwindstack/DwarfDebugFrame.cpp
View File

@ -19,11 +19,14 @@
#include <algorithm>
#include <unwindstack/DwarfStructs.h>
#include <unwindstack/Memory.h>
#include "DwarfDebugFrame.h"
#include "DwarfMemory.h"
#include "DwarfSection.h"
#include "DwarfStructs.h"
#include "Memory.h"
#include "DwarfEncoding.h"
#include "DwarfError.h"
namespace unwindstack {
template <typename AddressType>
bool DwarfDebugFrame<AddressType>::Init(uint64_t offset, uint64_t size) {
@ -309,3 +312,5 @@ const DwarfFde* DwarfDebugFrame<AddressType>::GetFdeFromIndex(size_t index) {
// Explicitly instantiate DwarfDebugFrame.
template class DwarfDebugFrame<uint32_t>;
template class DwarfDebugFrame<uint64_t>;
} // namespace unwindstack

6
libunwindstack/DwarfDebugFrame.h
View File

@ -21,7 +21,9 @@
#include <vector>
#include "DwarfSection.h"
#include <unwindstack/DwarfSection.h>
namespace unwindstack {
template <typename AddressType>
class DwarfDebugFrame : public DwarfSectionImpl<AddressType> {
@ -73,4 +75,6 @@ class DwarfDebugFrame : public DwarfSectionImpl<AddressType> {
std::vector<FdeInfo> fdes_;
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_DWARF_DEBUG_FRAME_H

12
libunwindstack/DwarfEhFrame.cpp
View File

@ -16,12 +16,14 @@
#include <stdint.h>
#include <unwindstack/DwarfStructs.h>
#include <unwindstack/Memory.h>
#include "Check.h"
#include "DwarfEhFrame.h"
#include "DwarfMemory.h"
#include "DwarfSection.h"
#include "DwarfStructs.h"
#include "Memory.h"
#include "DwarfError.h"
namespace unwindstack {
template <typename AddressType>
bool DwarfEhFrame<AddressType>::Init(uint64_t offset, uint64_t size) {
@ -211,3 +213,5 @@ bool DwarfEhFrame<AddressType>::GetFdeOffsetFromPc(uint64_t pc, uint64_t* fde_of
// Explicitly instantiate DwarfEhFrame.
template class DwarfEhFrame<uint32_t>;
template class DwarfEhFrame<uint64_t>;
} // namespace unwindstack

6
libunwindstack/DwarfEhFrame.h
View File

@ -19,7 +19,9 @@
#include <stdint.h>
#include "DwarfSection.h"
#include <unwindstack/DwarfSection.h>
namespace unwindstack {
// Forward declarations.
class Memory;
@ -86,4 +88,6 @@ class DwarfEhFrame : public DwarfSectionImpl<AddressType> {
std::unordered_map<uint64_t, FdeInfo> fde_info_;
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_DWARF_EH_FRAME_H

4
libunwindstack/DwarfEncoding.h
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@ -19,6 +19,8 @@
#include <stdint.h>
namespace unwindstack {
enum DwarfEncoding : uint8_t {
DW_EH_PE_omit = 0xff,
@ -44,4 +46,6 @@ enum DwarfEncoding : uint8_t {
DW_EH_PE_block = 0x0f,
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_DWARF_ENCODING_H

4
libunwindstack/DwarfError.h
View File

@ -19,6 +19,8 @@
#include <stdint.h>
namespace unwindstack {
enum DwarfError : uint8_t {
DWARF_ERROR_NONE,
DWARF_ERROR_MEMORY_INVALID,
@ -31,4 +33,6 @@ enum DwarfError : uint8_t {
DWARF_ERROR_UNSUPPORTED_VERSION,
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_DWARF_ERROR_H

9
libunwindstack/DwarfMemory.cpp
View File

@ -18,10 +18,13 @@
#include <string>
#include <unwindstack/DwarfMemory.h>
#include <unwindstack/Memory.h>
#include "Check.h"
#include "DwarfEncoding.h"
#include "DwarfMemory.h"
#include "Memory.h"
namespace unwindstack {
bool DwarfMemory::ReadBytes(void* dst, size_t num_bytes) {
if (!memory_->Read(cur_offset_, dst, num_bytes)) {
@ -246,3 +249,5 @@ template size_t DwarfMemory::GetEncodedSize<uint64_t>(uint8_t);
template bool DwarfMemory::ReadEncodedValue<uint32_t>(uint8_t, uint64_t*);
template bool DwarfMemory::ReadEncodedValue<uint64_t>(uint8_t, uint64_t*);
} // namespace unwindstack

13
libunwindstack/DwarfOp.cpp
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@ -22,12 +22,15 @@
#include <android-base/stringprintf.h>
#include <unwindstack/DwarfMemory.h>
#include <unwindstack/Log.h>
#include <unwindstack/Memory.h>
#include <unwindstack/Regs.h>
#include "DwarfError.h"
#include "DwarfMemory.h"
#include "DwarfOp.h"
#include "Log.h"
#include "Memory.h"
#include "Regs.h"
namespace unwindstack {
template <typename AddressType>
constexpr typename DwarfOp<AddressType>::OpCallback DwarfOp<AddressType>::kCallbackTable[256];
@ -460,3 +463,5 @@ bool DwarfOp<AddressType>::op_not_implemented() {
// Explicitly instantiate DwarfOp.
template class DwarfOp<uint32_t>;
template class DwarfOp<uint64_t>;
} // namespace unwindstack

5
libunwindstack/DwarfOp.h
View File

@ -25,6 +25,9 @@
#include <vector>
#include "DwarfEncoding.h"
#include "DwarfError.h"
namespace unwindstack {
enum DwarfVersion : uint8_t {
DWARF_VERSION_2 = 2,
@ -1633,4 +1636,6 @@ class DwarfOp {
};
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_DWARF_OP_H

26
libunwindstack/DwarfSection.cpp
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@ -16,16 +16,22 @@
#include <stdint.h>
#include <unwindstack/DwarfLocation.h>
#include <unwindstack/DwarfMemory.h>
#include <unwindstack/DwarfSection.h>
#include <unwindstack/DwarfStructs.h>
#include <unwindstack/Log.h>
#include <unwindstack/Memory.h>
#include <unwindstack/Regs.h>
#include "DwarfCfa.h"
#include "DwarfEncoding.h"
#include "DwarfError.h"
#include "DwarfLocation.h"
#include "DwarfMemory.h"
#include "DwarfOp.h"
#include "DwarfSection.h"
#include "DwarfStructs.h"
#include "Log.h"
#include "Memory.h"
#include "Regs.h"
namespace unwindstack {
DwarfSection::DwarfSection(Memory* memory) : memory_(memory), last_error_(DWARF_ERROR_NONE) {}
const DwarfFde* DwarfSection::GetFdeFromPc(uint64_t pc) {
uint64_t fde_offset;
@ -42,6 +48,7 @@ const DwarfFde* DwarfSection::GetFdeFromPc(uint64_t pc) {
}
bool DwarfSection::Step(uint64_t pc, Regs* regs, Memory* process_memory) {
last_error_ = DWARF_ERROR_NONE;
const DwarfFde* fde = GetFdeFromPc(pc);
if (fde == nullptr || fde->cie == nullptr) {
last_error_ = DWARF_ERROR_ILLEGAL_STATE;
@ -248,6 +255,9 @@ bool DwarfSectionImpl<AddressType>::FillInCie(DwarfCie* cie) {
last_error_ = DWARF_ERROR_MEMORY_INVALID;
return false;
}
// Set the default for the lsda encoding.
cie->lsda_encoding = DW_EH_PE_omit;
if (length32 == static_cast<uint32_t>(-1)) {
// 64 bit Cie
uint64_t length64;
@ -541,3 +551,5 @@ bool DwarfSectionImpl<AddressType>::Log(uint8_t indent, uint64_t pc, uint64_t lo
// Explicitly instantiate DwarfSectionImpl
template class DwarfSectionImpl<uint32_t>;
template class DwarfSectionImpl<uint64_t>;
} // namespace unwindstack

45
libunwindstack/Elf.cpp
View File

@ -23,12 +23,17 @@
#define LOG_TAG "unwind"
#include <log/log.h>
#include "Elf.h"
#include "ElfInterface.h"
#include <unwindstack/Elf.h>
#include <unwindstack/ElfInterface.h>
#include <unwindstack/MapInfo.h>
#include <unwindstack/Memory.h>
#include <unwindstack/Regs.h>
#include "ElfInterfaceArm.h"
#include "Machine.h"
#include "Memory.h"
#include "Regs.h"
#include "Symbols.h"
namespace unwindstack {
bool Elf::Init() {
if (!memory_) {
@ -71,6 +76,36 @@ void Elf::InitGnuDebugdata() {
}
}
bool Elf::GetSoname(std::string* name) {
return valid_ && interface_->GetSoname(name);
}
uint64_t Elf::GetRelPc(uint64_t pc, const MapInfo* map_info) {
uint64_t load_bias = 0;
if (valid()) {
load_bias = interface_->load_bias();
}
return pc - map_info->start + load_bias + map_info->elf_offset;
}
bool Elf::GetFunctionName(uint64_t addr, std::string* name, uint64_t* func_offset) {
return valid_ && (interface_->GetFunctionName(addr, name, func_offset) ||
(gnu_debugdata_interface_ &&
gnu_debugdata_interface_->GetFunctionName(addr, name, func_offset)));
}
bool Elf::Step(uint64_t rel_pc, Regs* regs, Memory* process_memory) {
return valid_ && (interface_->Step(rel_pc, regs, process_memory) ||
(gnu_debugdata_interface_ &&
gnu_debugdata_interface_->Step(rel_pc, regs, process_memory)));
}
uint64_t Elf::GetLoadBias() {
if (!valid_) return 0;
return interface_->load_bias();
}
bool Elf::IsValidElf(Memory* memory) {
if (memory == nullptr) {
return false;
@ -133,3 +168,5 @@ ElfInterface* Elf::CreateInterfaceFromMemory(Memory* memory) {
return interface.release();
}
} // namespace unwindstack

15
libunwindstack/ElfInterface.cpp
View File

@ -24,15 +24,18 @@
#include <Xz.h>
#include <XzCrc64.h>
#include <unwindstack/DwarfSection.h>
#include <unwindstack/ElfInterface.h>
#include <unwindstack/Log.h>
#include <unwindstack/Memory.h>
#include <unwindstack/Regs.h>
#include "DwarfDebugFrame.h"
#include "DwarfEhFrame.h"
#include "DwarfSection.h"
#include "ElfInterface.h"
#include "Log.h"
#include "Memory.h"
#include "Regs.h"
#include "Symbols.h"
namespace unwindstack {
ElfInterface::~ElfInterface() {
for (auto symbol : symbols_) {
delete symbol;
@ -387,3 +390,5 @@ template bool ElfInterface::GetFunctionNameWithTemplate<Elf32_Sym>(uint64_t, std
uint64_t*);
template bool ElfInterface::GetFunctionNameWithTemplate<Elf64_Sym>(uint64_t, std::string*,
uint64_t*);
} // namespace unwindstack

10
libunwindstack/ElfInterfaceArm.cpp
View File

@ -17,12 +17,14 @@
#include <elf.h>
#include <stdint.h>
#include <unwindstack/Memory.h>
#include <unwindstack/Regs.h>
#include "ArmExidx.h"
#include "ElfInterface.h"
#include "ElfInterfaceArm.h"
#include "Machine.h"
#include "Memory.h"
#include "Regs.h"
namespace unwindstack {
bool ElfInterfaceArm::FindEntry(uint32_t pc, uint64_t* entry_offset) {
if (start_offset_ == 0 || total_entries_ == 0) {
@ -127,3 +129,5 @@ bool ElfInterfaceArm::StepExidx(uint64_t pc, Regs* regs, Memory* process_memory)
}
return false;
}
} // namespace unwindstack

8
libunwindstack/ElfInterfaceArm.h
View File

@ -23,8 +23,10 @@
#include <iterator>
#include <unordered_map>
#include "ElfInterface.h"
#include "Memory.h"
#include <unwindstack/ElfInterface.h>
#include <unwindstack/Memory.h>
namespace unwindstack {
class ElfInterfaceArm : public ElfInterface32 {
public:
@ -87,4 +89,6 @@ class ElfInterfaceArm : public ElfInterface32 {
std::unordered_map<size_t, uint32_t> addrs_;
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_ELF_INTERFACE_ARM_H

6
libunwindstack/Log.cpp
View File

@ -25,7 +25,9 @@
#include <android-base/stringprintf.h>
#include "Log.h"
#include <unwindstack/Log.h>
namespace unwindstack {
static bool g_print_to_stdout = false;
@ -51,3 +53,5 @@ void log(uint8_t indent, const char* format, ...) {
}
va_end(args);
}
} // namespace unwindstack

4
libunwindstack/Machine.h
View File

@ -19,6 +19,8 @@
#include <stdint.h>
namespace unwindstack {
enum ArmReg : uint16_t {
ARM_REG_R0 = 0,
ARM_REG_R1,
@ -134,4 +136,6 @@ enum X86_64Reg : uint16_t {
X86_64_REG_PC = X86_64_REG_RIP,
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_MACHINE_H

12
libunwindstack/MapInfo.cpp
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@ -20,10 +20,12 @@
#include <memory>
#include <string>
#include "Elf.h"
#include "MapInfo.h"
#include "Maps.h"
#include "Memory.h"
#include <unwindstack/Elf.h>
#include <unwindstack/MapInfo.h>
#include <unwindstack/Maps.h>
#include <unwindstack/Memory.h>
namespace unwindstack {
Memory* MapInfo::CreateMemory(pid_t pid) {
if (end <= start) {
@ -86,3 +88,5 @@ Elf* MapInfo::GetElf(pid_t pid, bool init_gnu_debugdata) {
// don't try to reinit the object.
return elf;
}
} // namespace unwindstack

8
libunwindstack/Maps.cpp
View File

@ -29,7 +29,11 @@
#include <string>
#include <vector>
#include "Maps.h"
#include <unwindstack/Elf.h>
#include <unwindstack/Maps.h>
#include <unwindstack/Memory.h>
namespace unwindstack {
MapInfo* Maps::Find(uint64_t pc) {
if (maps_.empty()) {
@ -196,3 +200,5 @@ bool OfflineMaps::Parse() {
}
return true;
}
} // namespace unwindstack

13
libunwindstack/Memory.cpp
View File

@ -28,7 +28,11 @@
#include <android-base/unique_fd.h>
#include "Memory.h"
#include <unwindstack/Memory.h>
#include "Check.h"
namespace unwindstack {
bool Memory::ReadString(uint64_t addr, std::string* string, uint64_t max_read) {
string->clear();
@ -245,6 +249,11 @@ bool MemoryOffline::Read(uint64_t addr, void* dst, size_t size) {
return true;
}
MemoryRange::MemoryRange(Memory* memory, uint64_t begin, uint64_t end)
: memory_(memory), begin_(begin), length_(end - begin) {
CHECK(end > begin);
}
bool MemoryRange::Read(uint64_t addr, void* dst, size_t size) {
uint64_t max_read;
if (__builtin_add_overflow(addr, size, &max_read) || max_read > length_) {
@ -253,3 +262,5 @@ bool MemoryRange::Read(uint64_t addr, void* dst, size_t size) {
// The check above guarantees that addr + begin_ will not overflow.
return memory_->Read(addr + begin_, dst, size);
}
} // namespace unwindstack

21
libunwindstack/Regs.cpp
View File

@ -21,24 +21,17 @@
#include <vector>
#include <unwindstack/Elf.h>
#include <unwindstack/MapInfo.h>
#include <unwindstack/Memory.h>
#include <unwindstack/Regs.h>
#include "Check.h"
#include "Elf.h"
#include "ElfInterface.h"
#include "Machine.h"
#include "MapInfo.h"
#include "Regs.h"
#include "Ucontext.h"
#include "User.h"
template <typename AddressType>
uint64_t RegsImpl<AddressType>::GetRelPc(Elf* elf, const MapInfo* map_info) {
uint64_t load_bias = 0;
if (elf->valid()) {
load_bias = elf->interface()->load_bias();
}
return pc_ - map_info->start + load_bias + map_info->elf_offset;
}
namespace unwindstack {
template <typename AddressType>
bool RegsImpl<AddressType>::GetReturnAddressFromDefault(Memory* memory, uint64_t* value) {
@ -354,3 +347,5 @@ Regs* Regs::CreateFromLocal() {
#endif
return regs;
}
} // namespace unwindstack

7
libunwindstack/Symbols.cpp
View File

@ -19,10 +19,13 @@
#include <string>
#include <unwindstack/Memory.h>
#include "Check.h"
#include "Memory.h"
#include "Symbols.h"
namespace unwindstack {
Symbols::Symbols(uint64_t offset, uint64_t size, uint64_t entry_size, uint64_t str_offset,
uint64_t str_size)
: cur_offset_(offset),
@ -108,3 +111,5 @@ bool Symbols::GetName(uint64_t addr, uint64_t load_bias, Memory* elf_memory, std
// Instantiate all of the needed template functions.
template bool Symbols::GetName<Elf32_Sym>(uint64_t, uint64_t, Memory*, std::string*, uint64_t*);
template bool Symbols::GetName<Elf64_Sym>(uint64_t, uint64_t, Memory*, std::string*, uint64_t*);
} // namespace unwindstack

4
libunwindstack/Symbols.h
View File

@ -22,6 +22,8 @@
#include <string>
#include <vector>
namespace unwindstack {
// Forward declaration.
class Memory;
@ -61,4 +63,6 @@ class Symbols {
std::vector<Info> symbols_;
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_SYMBOLS_H

4
libunwindstack/Ucontext.h
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@ -31,6 +31,8 @@
#include <stdint.h>
namespace unwindstack {
//-------------------------------------------------------------------
// ARM ucontext structures
//-------------------------------------------------------------------
@ -177,4 +179,6 @@ typedef struct x86_64_ucontext {
} x86_64_ucontext_t;
//-------------------------------------------------------------------
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_UCONTEXT_H

4
libunwindstack/User.h
View File

@ -29,6 +29,8 @@
#ifndef _LIBUNWINDSTACK_USER_H
#define _LIBUNWINDSTACK_USER_H
namespace unwindstack {
struct x86_user_regs {
uint32_t ebx;
uint32_t ecx;
@ -93,4 +95,6 @@ struct arm64_user_regs {
// The largest user structure.
constexpr size_t MAX_USER_REGS_SIZE = sizeof(arm64_user_regs) + 10;
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_USER_H

4
libunwindstack/DwarfLocation.h → libunwindstack/include/unwindstack/DwarfLocation.h
View File

@ -21,6 +21,8 @@
#include <unordered_map>
namespace unwindstack {
enum DwarfLocationEnum : uint8_t {
DWARF_LOCATION_INVALID = 0,
DWARF_LOCATION_UNDEFINED,
@ -38,4 +40,6 @@ struct DwarfLocation {
typedef std::unordered_map<uint16_t, DwarfLocation> dwarf_loc_regs_t;
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_DWARF_LOCATION_H

4
libunwindstack/DwarfMemory.h → libunwindstack/include/unwindstack/DwarfMemory.h
View File

@ -19,6 +19,8 @@
#include <stdint.h>
namespace unwindstack {
// Forward declarations.
class Memory;
@ -69,4 +71,6 @@ class DwarfMemory {
uint64_t text_offset_ = static_cast<uint64_t>(-1);
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_DWARF_MEMORY_H

16
libunwindstack/DwarfSection.h → libunwindstack/include/unwindstack/DwarfSection.h
View File

@ -22,18 +22,20 @@
#include <iterator>
#include <unordered_map>
#include "DwarfError.h"
#include "DwarfLocation.h"
#include "DwarfMemory.h"
#include "DwarfStructs.h"
#include <unwindstack/DwarfLocation.h>
#include <unwindstack/DwarfMemory.h>
#include <unwindstack/DwarfStructs.h>
namespace unwindstack {
// Forward declarations.
enum DwarfError : uint8_t;
class Memory;
class Regs;
class DwarfSection {
public:
DwarfSection(Memory* memory) : memory_(memory) {}
DwarfSection(Memory* memory);
virtual ~DwarfSection() = default;
class iterator : public std::iterator<std::bidirectional_iterator_tag, DwarfFde*> {
@ -102,7 +104,7 @@ class DwarfSection {
protected:
DwarfMemory memory_;
DwarfError last_error_ = DWARF_ERROR_NONE;
DwarfError last_error_;
uint64_t fde_count_;
std::unordered_map<uint64_t, DwarfFde> fde_entries_;
@ -134,4 +136,6 @@ class DwarfSectionImpl : public DwarfSection {
AddressType* value);
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_DWARF_SECTION_H

8
libunwindstack/DwarfStructs.h → libunwindstack/include/unwindstack/DwarfStructs.h
View File

@ -21,12 +21,12 @@
#include <vector>
#include "DwarfEncoding.h"
namespace unwindstack {
struct DwarfCie {
uint8_t version = 0;
uint8_t fde_address_encoding = DW_EH_PE_absptr;
uint8_t lsda_encoding = DW_EH_PE_omit;
uint8_t fde_address_encoding = 0;
uint8_t lsda_encoding = 0;
uint8_t segment_size = 0;
std::vector<char> augmentation_string;
uint64_t personality_handler = 0;
@ -49,4 +49,6 @@ struct DwarfFde {
constexpr uint16_t CFA_REG = static_cast<uint16_t>(-1);
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_DWARF_STRUCTS_H

29
libunwindstack/Elf.h → libunwindstack/include/unwindstack/Elf.h
View File

@ -22,14 +22,17 @@
#include <memory>
#include <string>
#include "ElfInterface.h"
#include "Memory.h"
#include <unwindstack/ElfInterface.h>
#include <unwindstack/Memory.h>
#if !defined(EM_AARCH64)
#define EM_AARCH64 183
#endif
namespace unwindstack {
// Forward declaration.
struct MapInfo;
class Regs;
class Elf {
@ -41,24 +44,18 @@ class Elf {
void InitGnuDebugdata();
bool GetSoname(std::string* name) {
return valid_ && interface_->GetSoname(name);
}
bool GetSoname(std::string* name);
bool GetFunctionName(uint64_t addr, std::string* name, uint64_t* func_offset) {
return valid_ && (interface_->GetFunctionName(addr, name, func_offset) ||
(gnu_debugdata_interface_ &&
gnu_debugdata_interface_->GetFunctionName(addr, name, func_offset)));
}
bool GetFunctionName(uint64_t addr, std::string* name, uint64_t* func_offset);
bool Step(uint64_t rel_pc, Regs* regs, Memory* process_memory) {
return valid_ && (interface_->Step(rel_pc, regs, process_memory) ||
(gnu_debugdata_interface_ &&
gnu_debugdata_interface_->Step(rel_pc, regs, process_memory)));
}
uint64_t GetRelPc(uint64_t pc, const MapInfo* map_info);
bool Step(uint64_t rel_pc, Regs* regs, Memory* process_memory);
ElfInterface* CreateInterfaceFromMemory(Memory* memory);
uint64_t GetLoadBias();
bool valid() { return valid_; }
uint32_t machine_type() { return machine_type_; }
@ -84,4 +81,6 @@ class Elf {
std::unique_ptr<ElfInterface> gnu_debugdata_interface_;
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_ELF_H

6
libunwindstack/ElfInterface.h → libunwindstack/include/unwindstack/ElfInterface.h
View File

@ -25,7 +25,9 @@
#include <unordered_map>
#include <vector>
#include "DwarfSection.h"
#include <unwindstack/DwarfSection.h>
namespace unwindstack {
// Forward declarations.
class Memory;
@ -166,4 +168,6 @@ class ElfInterface64 : public ElfInterface {
}
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_ELF_INTERFACE_H

4
libunwindstack/Log.h → libunwindstack/include/unwindstack/Log.h
View File

@ -19,7 +19,11 @@
#include <stdint.h>
namespace unwindstack {
void log_to_stdout(bool enable);
void log(uint8_t indent, const char* format, ...);
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_LOG_H

4
libunwindstack/MapInfo.h → libunwindstack/include/unwindstack/MapInfo.h
View File

@ -21,6 +21,8 @@
#include <string>
namespace unwindstack {
// Forward declarations.
class Elf;
class Memory;
@ -42,4 +44,6 @@ struct MapInfo {
Elf* GetElf(pid_t pid, bool init_gnu_debugdata = false);
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_MAP_INFO_H

7
libunwindstack/Maps.h → libunwindstack/include/unwindstack/Maps.h
View File

@ -23,8 +23,9 @@
#include <string>
#include <vector>
#include "Elf.h"
#include "MapInfo.h"
#include <unwindstack/MapInfo.h>
namespace unwindstack {
// Special flag to indicate a map is in /dev/. However, a map in
// /dev/ashmem/... does not set this flag.
@ -104,4 +105,6 @@ class OfflineMaps : public FileMaps {
bool Parse() override;
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_MAPS_H

17
libunwindstack/Memory.h → libunwindstack/include/unwindstack/Memory.h
View File

@ -24,7 +24,7 @@
#include <string>
#include <vector>
#include "Check.h"
namespace unwindstack {
class Memory {
public:
@ -47,13 +47,9 @@ class Memory {
return Read(offset, field, size);
}
inline bool Read32(uint64_t addr, uint32_t* dst) {
return Read(addr, dst, sizeof(uint32_t));
}
inline bool Read32(uint64_t addr, uint32_t* dst) { return Read(addr, dst, sizeof(uint32_t)); }
inline bool Read64(uint64_t addr, uint64_t* dst) {
return Read(addr, dst, sizeof(uint64_t));
}
inline bool Read64(uint64_t addr, uint64_t* dst) { return Read(addr, dst, sizeof(uint64_t)); }
};
class MemoryBuffer : public Memory {
@ -129,10 +125,7 @@ class MemoryLocal : public Memory {
class MemoryRange : public Memory {
public:
MemoryRange(Memory* memory, uint64_t begin, uint64_t end)
: memory_(memory), begin_(begin), length_(end - begin) {
CHECK(end > begin);
}
MemoryRange(Memory* memory, uint64_t begin, uint64_t end);
virtual ~MemoryRange() { delete memory_; }
bool Read(uint64_t addr, void* dst, size_t size) override;
@ -143,4 +136,6 @@ class MemoryRange : public Memory {
uint64_t length_;
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_MEMORY_H

9
libunwindstack/Regs.h → libunwindstack/include/unwindstack/Regs.h
View File

@ -21,9 +21,12 @@
#include <vector>
namespace unwindstack {
// Forward declarations.
class Elf;
struct MapInfo;
class Memory;
class Regs {
public:
@ -50,8 +53,6 @@ class Regs {
virtual bool GetReturnAddressFromDefault(Memory* memory, uint64_t* value) = 0;
virtual uint64_t GetRelPc(Elf* elf, const MapInfo* map_info) = 0;
virtual uint64_t GetAdjustedPc(uint64_t rel_pc, Elf* elf) = 0;
virtual void SetFromRaw() = 0;
@ -77,8 +78,6 @@ class RegsImpl : public Regs {
: Regs(total_regs, sp_reg, return_loc), regs_(total_regs) {}
virtual ~RegsImpl() = default;
uint64_t GetRelPc(Elf* elf, const MapInfo* map_info) override;
bool GetReturnAddressFromDefault(Memory* memory, uint64_t* value) override;
uint64_t pc() override { return pc_; }
@ -137,4 +136,6 @@ class RegsX86_64 : public RegsImpl<uint64_t> {
void SetFromRaw() override;
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_REGS_H

4
libunwindstack/RegsGetLocal.h → libunwindstack/include/unwindstack/RegsGetLocal.h
View File

@ -29,6 +29,8 @@
#ifndef _LIBUNWINDSTACK_REGS_GET_LOCAL_H
#define _LIBUNWINDSTACK_REGS_GET_LOCAL_H
namespace unwindstack {
#if defined(__arm__)
inline void RegsGetLocal(Regs* regs) {
@ -97,4 +99,6 @@ inline void RegsGetLocal(Regs* regs) {
#endif
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_REGS_GET_LOCAL_H

9
libunwindstack/tests/ArmExidxDecodeTest.cpp
View File

@ -23,13 +23,16 @@
#include <gtest/gtest.h>
#include <unwindstack/Log.h>
#include <unwindstack/Regs.h>
#include "ArmExidx.h"
#include "Regs.h"
#include "Log.h"
#include "LogFake.h"
#include "MemoryFake.h"
namespace unwindstack {
class ArmExidxDecodeTest : public ::testing::TestWithParam<std::string> {
protected:
void Init(Memory* process_memory = nullptr) {
@ -1092,3 +1095,5 @@ TEST_P(ArmExidxDecodeTest, eval_pc_set) {
}
INSTANTIATE_TEST_CASE_P(, ArmExidxDecodeTest, ::testing::Values("logging", "no_logging"));
} // namespace unwindstack

7
libunwindstack/tests/ArmExidxExtractTest.cpp
View File

@ -21,12 +21,15 @@
#include <gtest/gtest.h>
#include <unwindstack/Log.h>
#include "ArmExidx.h"
#include "Log.h"
#include "LogFake.h"
#include "MemoryFake.h"
namespace unwindstack {
class ArmExidxExtractTest : public ::testing::Test {
protected:
void SetUp() override {
@ -329,3 +332,5 @@ TEST_F(ArmExidxExtractTest, raw_data_non_compact) {
ASSERT_TRUE(exidx_->ExtractEntryData(0x5000));
ASSERT_EQ("4 unwind Raw Data: 0x11 0x22 0x33 0xb0\n", GetFakeLogPrint());
}
} // namespace unwindstack

13
libunwindstack/tests/DwarfCfaLogTest.cpp
View File

@ -23,15 +23,18 @@
#include <android-base/stringprintf.h>
#include <gtest/gtest.h>
#include <unwindstack/DwarfLocation.h>
#include <unwindstack/DwarfMemory.h>
#include <unwindstack/DwarfStructs.h>
#include <unwindstack/Log.h>
#include "DwarfCfa.h"
#include "DwarfLocation.h"
#include "DwarfMemory.h"
#include "DwarfStructs.h"
#include "Log.h"
#include "LogFake.h"
#include "MemoryFake.h"
namespace unwindstack {
template <typename TypeParam>
class DwarfCfaLogTest : public ::testing::Test {
protected:
@ -812,3 +815,5 @@ REGISTER_TYPED_TEST_CASE_P(DwarfCfaLogTest, cfa_illegal, cfa_nop, cfa_offset, cf
typedef ::testing::Types<uint32_t, uint64_t> DwarfCfaLogTestTypes;
INSTANTIATE_TYPED_TEST_CASE_P(, DwarfCfaLogTest, DwarfCfaLogTestTypes);
} // namespace unwindstack

14
libunwindstack/tests/DwarfCfaTest.cpp
View File

@ -21,15 +21,19 @@
#include <gtest/gtest.h>
#include <unwindstack/DwarfLocation.h>
#include <unwindstack/DwarfMemory.h>
#include <unwindstack/DwarfStructs.h>
#include <unwindstack/Log.h>
#include "DwarfCfa.h"
#include "DwarfLocation.h"
#include "DwarfMemory.h"
#include "DwarfStructs.h"
#include "Log.h"
#include "DwarfError.h"
#include "LogFake.h"
#include "MemoryFake.h"
namespace unwindstack {
template <typename TypeParam>
class DwarfCfaTest : public ::testing::Test {
protected:
@ -957,3 +961,5 @@ REGISTER_TYPED_TEST_CASE_P(DwarfCfaTest, cfa_illegal, cfa_nop, cfa_offset, cfa_o
typedef ::testing::Types<uint32_t, uint64_t> DwarfCfaTestTypes;
INSTANTIATE_TYPED_TEST_CASE_P(, DwarfCfaTest, DwarfCfaTestTypes);
} // namespace unwindstack

5
libunwindstack/tests/DwarfDebugFrameTest.cpp
View File

@ -21,11 +21,14 @@
#include "DwarfDebugFrame.h"
#include "DwarfEncoding.h"
#include "DwarfError.h"
#include "LogFake.h"
#include "MemoryFake.h"
#include "RegsFake.h"
namespace unwindstack {
template <typename TypeParam>
class MockDwarfDebugFrame : public DwarfDebugFrame<TypeParam> {
public:
@ -454,3 +457,5 @@ REGISTER_TYPED_TEST_CASE_P(DwarfDebugFrameTest, Init32, Init32_fde_not_following
typedef ::testing::Types<uint32_t, uint64_t> DwarfDebugFrameTestTypes;
INSTANTIATE_TYPED_TEST_CASE_P(, DwarfDebugFrameTest, DwarfDebugFrameTestTypes);
} // namespace unwindstack

5
libunwindstack/tests/DwarfEhFrameTest.cpp
View File

@ -21,11 +21,14 @@
#include "DwarfEhFrame.h"
#include "DwarfEncoding.h"
#include "DwarfError.h"
#include "LogFake.h"
#include "MemoryFake.h"
#include "RegsFake.h"
namespace unwindstack {
template <typename TypeParam>
class MockDwarfEhFrame : public DwarfEhFrame<TypeParam> {
public:
@ -407,3 +410,5 @@ REGISTER_TYPED_TEST_CASE_P(DwarfEhFrameTest, Init, GetFdeInfoFromIndex_expect_ca
typedef ::testing::Types<uint32_t, uint64_t> DwarfEhFrameTestTypes;
INSTANTIATE_TYPED_TEST_CASE_P(, DwarfEhFrameTest, DwarfEhFrameTestTypes);
} // namespace unwindstack

6
libunwindstack/tests/DwarfMemoryTest.cpp
View File

@ -21,10 +21,12 @@
#include <gtest/gtest.h>
#include "DwarfMemory.h"
#include <unwindstack/DwarfMemory.h>
#include "MemoryFake.h"
namespace unwindstack {
class DwarfMemoryTest : public ::testing::Test {
protected:
void SetUp() override {
@ -494,3 +496,5 @@ TEST_F(DwarfMemoryTest, AdjustEncodedValue_funcrel) {
ASSERT_TRUE(dwarf_mem_->AdjustEncodedValue(0x40, &value));
ASSERT_EQ(0x14234U, value);
}
} // namespace unwindstack

11
libunwindstack/tests/DwarfOpLogTest.cpp
View File

@ -21,14 +21,17 @@
#include <gtest/gtest.h>
#include <unwindstack/DwarfMemory.h>
#include <unwindstack/Log.h>
#include <unwindstack/Regs.h>
#include "DwarfError.h"
#include "DwarfMemory.h"
#include "DwarfOp.h"
#include "Log.h"
#include "Regs.h"
#include "MemoryFake.h"
namespace unwindstack {
template <typename TypeParam>
class DwarfOpLogTest : public ::testing::Test {
protected:
@ -66,3 +69,5 @@ REGISTER_TYPED_TEST_CASE_P(DwarfOpLogTest, multiple_ops);
typedef ::testing::Types<uint32_t, uint64_t> DwarfOpLogTestTypes;
INSTANTIATE_TYPED_TEST_CASE_P(, DwarfOpLogTest, DwarfOpLogTestTypes);
} // namespace unwindstack

9
libunwindstack/tests/DwarfOpTest.cpp
View File

@ -21,14 +21,17 @@
#include <gtest/gtest.h>
#include <unwindstack/DwarfMemory.h>
#include <unwindstack/Log.h>
#include "DwarfError.h"
#include "DwarfMemory.h"
#include "DwarfOp.h"
#include "Log.h"
#include "MemoryFake.h"
#include "RegsFake.h"
namespace unwindstack {
template <typename TypeParam>
class DwarfOpTest : public ::testing::Test {
protected:
@ -1579,3 +1582,5 @@ REGISTER_TYPED_TEST_CASE_P(DwarfOpTest, decode, eval, illegal_opcode, illegal_in
typedef ::testing::Types<uint32_t, uint64_t> DwarfOpTestTypes;
INSTANTIATE_TYPED_TEST_CASE_P(, DwarfOpTest, DwarfOpTestTypes);
} // namespace unwindstack

9
libunwindstack/tests/DwarfSectionImplTest.cpp
View File

@ -19,12 +19,17 @@
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include "DwarfSection.h"
#include <unwindstack/DwarfSection.h>
#include "DwarfEncoding.h"
#include "DwarfError.h"
#include "LogFake.h"
#include "MemoryFake.h"
#include "RegsFake.h"
namespace unwindstack {
template <typename TypeParam>
class MockDwarfSectionImpl : public DwarfSectionImpl<TypeParam> {
public:
@ -830,3 +835,5 @@ REGISTER_TYPED_TEST_CASE_P(
typedef ::testing::Types<uint32_t, uint64_t> DwarfSectionImplTestTypes;
INSTANTIATE_TYPED_TEST_CASE_P(, DwarfSectionImplTest, DwarfSectionImplTestTypes);
} // namespace unwindstack

6
libunwindstack/tests/DwarfSectionTest.cpp
View File

@ -19,10 +19,12 @@
#include <gmock/gmock.h>
#include <gtest/gtest.h>
#include "DwarfSection.h"
#include <unwindstack/DwarfSection.h>
#include "MemoryFake.h"
namespace unwindstack {
class MockDwarfSection : public DwarfSection {
public:
MockDwarfSection(Memory* memory) : DwarfSection(memory) {}
@ -158,3 +160,5 @@ TEST_F(DwarfSectionTest, Step_pass) {
ASSERT_TRUE(mock_section.Step(0x1000, nullptr, &process));
}
} // namespace unwindstack

7
libunwindstack/tests/ElfInterfaceArmTest.cpp
View File

@ -20,12 +20,15 @@
#include <vector>
#include <unwindstack/Regs.h>
#include "ElfInterfaceArm.h"
#include "Machine.h"
#include "Regs.h"
#include "MemoryFake.h"
namespace unwindstack {
class ElfInterfaceArmTest : public ::testing::Test {
protected:
void SetUp() override {
@ -370,3 +373,5 @@ TEST_F(ElfInterfaceArmTest, StepExidx_pc_set) {
ASSERT_EQ(0x10U, regs.pc());
ASSERT_EQ(0x10U, regs[ARM_REG_PC]);
}
} // namespace unwindstack

8
libunwindstack/tests/ElfInterfaceTest.cpp
View File

@ -20,7 +20,9 @@
#include <gtest/gtest.h>
#include "ElfInterface.h"
#include <unwindstack/ElfInterface.h>
#include "DwarfEncoding.h"
#include "ElfInterfaceArm.h"
#include "MemoryFake.h"
@ -33,6 +35,8 @@
#define EM_AARCH64 183
#endif
namespace unwindstack {
class ElfInterfaceTest : public ::testing::Test {
protected:
void SetUp() override {
@ -921,3 +925,5 @@ TEST_F(ElfInterfaceTest, init_section_headers_offsets32) {
TEST_F(ElfInterfaceTest, init_section_headers_offsets64) {
InitSectionHeadersOffsets<Elf64_Ehdr, Elf64_Shdr, ElfInterface64>();
}
} // namespace unwindstack

35
libunwindstack/tests/ElfTest.cpp
View File

@ -22,7 +22,8 @@
#include <gtest/gtest.h>
#include "Elf.h"
#include <unwindstack/Elf.h>
#include <unwindstack/MapInfo.h>
#include "ElfTestUtils.h"
#include "MemoryFake.h"
@ -31,6 +32,8 @@
#define PT_ARM_EXIDX 0x70000001
#endif
namespace unwindstack {
class ElfTest : public ::testing::Test {
protected:
void SetUp() override {
@ -237,3 +240,33 @@ TEST_F(ElfTest, gnu_debugdata_init64) {
elf.InitGnuDebugdata();
ASSERT_TRUE(elf.gnu_debugdata_interface() != nullptr);
}
class MockElf : public Elf {
public:
MockElf(Memory* memory) : Elf(memory) {}
virtual ~MockElf() = default;
void set_valid(bool valid) { valid_ = valid; }
void set_elf_interface(ElfInterface* interface) { interface_.reset(interface); }
};
TEST_F(ElfTest, rel_pc) {
MockElf elf(memory_);
ElfInterface* interface = new ElfInterface32(memory_);
elf.set_elf_interface(interface);
elf.set_valid(true);
interface->set_load_bias(0);
MapInfo map_info{.start = 0x1000, .end = 0x2000};
ASSERT_EQ(0x101U, elf.GetRelPc(0x1101, &map_info));
interface->set_load_bias(0x3000);
ASSERT_EQ(0x3101U, elf.GetRelPc(0x1101, &map_info));
elf.set_valid(false);
ASSERT_EQ(0x101U, elf.GetRelPc(0x1101, &map_info));
}
} // namespace unwindstack

4
libunwindstack/tests/ElfTestUtils.cpp
View File

@ -31,6 +31,8 @@
#include "ElfTestUtils.h"
namespace unwindstack {
template <typename Ehdr>
void TestInitEhdr(Ehdr* ehdr, uint32_t elf_class, uint32_t machine_type) {
memset(ehdr, 0, sizeof(Ehdr));
@ -136,3 +138,5 @@ template void TestInitGnuDebugdata<Elf32_Ehdr, Elf32_Shdr>(uint32_t, uint32_t, b
TestCopyFuncType);
template void TestInitGnuDebugdata<Elf64_Ehdr, Elf64_Shdr>(uint32_t, uint32_t, bool,
TestCopyFuncType);
} // namespace unwindstack

4
libunwindstack/tests/ElfTestUtils.h
View File

@ -19,6 +19,8 @@
#include <functional>
namespace unwindstack {
typedef std::function<void(uint64_t, const void*, size_t)> TestCopyFuncType;
template <typename Ehdr>
@ -28,4 +30,6 @@ template <typename Ehdr, typename Shdr>
void TestInitGnuDebugdata(uint32_t elf_class, uint32_t machine_type, bool init_gnu_debudata,
TestCopyFuncType copy_func);
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_TESTS_ELF_TEST_UTILS_H

5
libunwindstack/tests/LogFake.cpp
View File

@ -25,7 +25,6 @@
#include "LogFake.h"
// Forward declarations.
class Backtrace;
struct EventTagMap;
struct AndroidLogEntry;
@ -33,6 +32,8 @@ std::string g_fake_log_buf;
std::string g_fake_log_print;
namespace unwindstack {
void ResetLogs() {
g_fake_log_buf = "";
g_fake_log_print = "";
@ -46,6 +47,8 @@ std::string GetFakeLogPrint() {
return g_fake_log_print;
}
} // namespace unwindstack
extern "C" int __android_log_buf_write(int bufId, int prio, const char* tag, const char* msg) {
g_fake_log_buf += std::to_string(bufId) + ' ' + std::to_string(prio) + ' ';
g_fake_log_buf += tag;

4
libunwindstack/tests/LogFake.h
View File

@ -19,8 +19,12 @@
#include <string>
namespace unwindstack {
void ResetLogs();
std::string GetFakeLogBuf();
std::string GetFakeLogPrint();
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_TESTS_LOG_FAKE_H

10
libunwindstack/tests/MapInfoCreateMemoryTest.cpp
View File

@ -30,9 +30,11 @@
#include <android-base/test_utils.h>
#include <gtest/gtest.h>
#include "Elf.h"
#include "MapInfo.h"
#include "Memory.h"
#include <unwindstack/Elf.h>
#include <unwindstack/MapInfo.h>
#include <unwindstack/Memory.h>
namespace unwindstack {
class MapInfoCreateMemoryTest : public ::testing::Test {
protected:
@ -203,3 +205,5 @@ TEST_F(MapInfoCreateMemoryTest, remote_memory) {
kill(pid, SIGKILL);
ASSERT_EQ(pid, wait(nullptr));
}
} // namespace unwindstack

10
libunwindstack/tests/MapInfoGetElfTest.cpp
View File

@ -30,9 +30,13 @@
#include <android-base/test_utils.h>
#include <gtest/gtest.h>
#include "Elf.h"
#include <unwindstack/Elf.h>
#include <unwindstack/MapInfo.h>
#include <unwindstack/Memory.h>
#include "ElfTestUtils.h"
#include "MapInfo.h"
namespace unwindstack {
class MapInfoGetElfTest : public ::testing::Test {
protected:
@ -138,3 +142,5 @@ TEST_F(MapInfoGetElfTest, gnu_debugdata_init64) {
EXPECT_EQ(ELFCLASS64, elf->class_type());
EXPECT_TRUE(elf->gnu_debugdata_interface() != nullptr);
}
} // namespace unwindstack

6
libunwindstack/tests/MapsTest.cpp
View File

@ -20,7 +20,9 @@
#include <android-base/test_utils.h>
#include <gtest/gtest.h>
#include "Maps.h"
#include <unwindstack/Maps.h>
namespace unwindstack {
TEST(MapsTest, parse_permissions) {
BufferMaps maps(
@ -235,3 +237,5 @@ TEST(MapsTest, find) {
ASSERT_EQ(PROT_READ | PROT_WRITE | PROT_EXEC, info->flags);
ASSERT_EQ("/system/lib/fake5.so", info->name);
}
} // namespace unwindstack

6
libunwindstack/tests/MemoryBufferTest.cpp
View File

@ -18,10 +18,12 @@
#include <gtest/gtest.h>
#include "Memory.h"
#include <unwindstack/Memory.h>
#include "LogFake.h"
namespace unwindstack {
class MemoryBufferTest : public ::testing::Test {
protected:
void SetUp() override {
@ -75,3 +77,5 @@ TEST_F(MemoryBufferTest, read_failure_overflow) {
ASSERT_FALSE(memory_->Read(UINT64_MAX - 100, buffer.data(), 200));
}
} // namespace unwindstack

4
libunwindstack/tests/MemoryFake.cpp
View File

@ -21,6 +21,8 @@
#include "MemoryFake.h"
namespace unwindstack {
void MemoryFake::SetMemory(uint64_t addr, const void* memory, size_t length) {
const uint8_t* src = reinterpret_cast<const uint8_t*>(memory);
for (size_t i = 0; i < length; i++, addr++) {
@ -44,3 +46,5 @@ bool MemoryFake::Read(uint64_t addr, void* memory, size_t size) {
}
return true;
}
} // namespace unwindstack

6
libunwindstack/tests/MemoryFake.h
View File

@ -23,7 +23,9 @@
#include <vector>
#include <unordered_map>
#include "Memory.h"
#include <unwindstack/Memory.h>
namespace unwindstack {
class MemoryFake : public Memory {
public:
@ -87,4 +89,6 @@ class MemoryFakeRemote : public MemoryRemote {
}
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_TESTS_MEMORY_FAKE_H

6
libunwindstack/tests/MemoryFileTest.cpp
View File

@ -21,7 +21,9 @@
#include <android-base/file.h>
#include <gtest/gtest.h>
#include "Memory.h"
#include <unwindstack/Memory.h>
namespace unwindstack {
class MemoryFileTest : public ::testing::Test {
protected:
@ -269,3 +271,5 @@ TEST_F(MemoryFileTest, init_reinit) {
ASSERT_EQ(2, read_buffer[i]) << "Failed at byte " << i;
}
}
} // namespace unwindstack

6
libunwindstack/tests/MemoryLocalTest.cpp
View File

@ -21,7 +21,9 @@
#include <gtest/gtest.h>
#include "Memory.h"
#include <unwindstack/Memory.h>
namespace unwindstack {
TEST(MemoryLocalTest, read) {
std::vector<uint8_t> src(1024);
@ -64,3 +66,5 @@ TEST(MemoryLocalTest, read_overflow) {
uint64_t value;
ASSERT_FALSE(local.Read(reinterpret_cast<uint64_t>(&value), dst.data(), SIZE_MAX));
}
} // namespace unwindstack

6
libunwindstack/tests/MemoryRangeTest.cpp
View File

@ -22,10 +22,12 @@
#include <gtest/gtest.h>
#include "Memory.h"
#include <unwindstack/Memory.h>
#include "MemoryFake.h"
namespace unwindstack {
TEST(MemoryRangeTest, read) {
std::vector<uint8_t> src(1024);
memset(src.data(), 0x4c, 1024);
@ -70,3 +72,5 @@ TEST(MemoryRangeTest, read_overflow) {
std::unique_ptr<MemoryRange> overflow(new MemoryRange(new MemoryFakeAlwaysReadZero, 100, 200));
ASSERT_FALSE(overflow->Read(UINT64_MAX - 10, buffer.data(), 100));
}
} // namespace unwindstack

6
libunwindstack/tests/MemoryRemoteTest.cpp
View File

@ -31,10 +31,12 @@
#include <android-base/file.h>
#include <gtest/gtest.h>
#include "Memory.h"
#include <unwindstack/Memory.h>
#include "MemoryFake.h"
namespace unwindstack {
class MemoryRemoteTest : public ::testing::Test {
protected:
static uint64_t NanoTime() {
@ -164,3 +166,5 @@ TEST_F(MemoryRemoteTest, read_illegal) {
kill(pid, SIGKILL);
ASSERT_EQ(pid, wait(nullptr));
}
} // namespace unwindstack

6
libunwindstack/tests/MemoryTest.cpp
View File

@ -22,10 +22,12 @@
#include <gtest/gtest.h>
#include "Memory.h"
#include <unwindstack/Memory.h>
#include "MemoryFake.h"
namespace unwindstack {
TEST(MemoryTest, read32) {
MemoryFakeAlwaysReadZero memory;
@ -124,3 +126,5 @@ TEST(MemoryTest, read_string_error) {
ASSERT_TRUE(memory.ReadString(0, &dst_name));
ASSERT_EQ("short", dst_name);
}
} // namespace unwindstack

8
libunwindstack/tests/RegsFake.h
View File

@ -19,7 +19,10 @@
#include <stdint.h>
#include "Regs.h"
#include <unwindstack/Memory.h>
#include <unwindstack/Regs.h>
namespace unwindstack {
template <typename TypeParam>
class RegsFake : public RegsImpl<TypeParam> {
@ -28,10 +31,11 @@ class RegsFake : public RegsImpl<TypeParam> {
: RegsImpl<TypeParam>(total_regs, sp_reg, Regs::Location(Regs::LOCATION_UNKNOWN, 0)) {}
virtual ~RegsFake() = default;
uint64_t GetRelPc(Elf*, const MapInfo*) override { return 0; }
uint64_t GetAdjustedPc(uint64_t, Elf*) override { return 0; }
void SetFromRaw() override {}
bool GetReturnAddressFromDefault(Memory*, uint64_t*) { return false; }
};
} // namespace unwindstack
#endif // _LIBUNWINDSTACK_TESTS_REGS_FAKE_H

43
libunwindstack/tests/RegsTest.cpp
View File

@ -18,13 +18,15 @@
#include <gtest/gtest.h>
#include "Elf.h"
#include "ElfInterface.h"
#include "MapInfo.h"
#include "Regs.h"
#include <unwindstack/Elf.h>
#include <unwindstack/ElfInterface.h>
#include <unwindstack/MapInfo.h>
#include <unwindstack/Regs.h>
#include "MemoryFake.h"
namespace unwindstack {
class ElfFake : public Elf {
public:
ElfFake(Memory* memory) : Elf(memory) { valid_ = true; }
@ -69,9 +71,6 @@ class RegsTest : public ::testing::Test {
elf_->set_elf_interface(elf_interface_);
}
template <typename AddressType>
void regs_rel_pc();
template <typename AddressType>
void regs_return_address_register();
@ -126,26 +125,6 @@ TEST_F(RegsTest, regs64) {
ASSERT_EQ(10U, regs64[8]);
}
template <typename AddressType>
void RegsTest::regs_rel_pc() {
RegsTestImpl<AddressType> regs(30, 12);
elf_interface_->set_load_bias(0);
MapInfo map_info{.start = 0x1000, .end = 0x2000};
regs.set_pc(0x1101);
ASSERT_EQ(0x101U, regs.GetRelPc(elf_.get(), &map_info));
elf_interface_->set_load_bias(0x3000);
ASSERT_EQ(0x3101U, regs.GetRelPc(elf_.get(), &map_info));
}
TEST_F(RegsTest, regs32_rel_pc) {
regs_rel_pc<uint32_t>();
}
TEST_F(RegsTest, regs64_rel_pc) {
regs_rel_pc<uint64_t>();
}
template <typename AddressType>
void RegsTest::regs_return_address_register() {
RegsTestImpl<AddressType> regs(20, 10, Regs::Location(Regs::LOCATION_REGISTER, 5));
@ -250,19 +229,19 @@ TEST_F(RegsTest, elf_invalid) {
MapInfo map_info{.start = 0x1000, .end = 0x2000};
regs_arm.set_pc(0x1500);
ASSERT_EQ(0x500U, regs_arm.GetRelPc(&invalid_elf, &map_info));
ASSERT_EQ(0x500U, invalid_elf.GetRelPc(regs_arm.pc(), &map_info));
ASSERT_EQ(0x500U, regs_arm.GetAdjustedPc(0x500U, &invalid_elf));
regs_arm64.set_pc(0x1600);
ASSERT_EQ(0x600U, regs_arm64.GetRelPc(&invalid_elf, &map_info));
ASSERT_EQ(0x600U, invalid_elf.GetRelPc(regs_arm64.pc(), &map_info));
ASSERT_EQ(0x600U, regs_arm64.GetAdjustedPc(0x600U, &invalid_elf));
regs_x86.set_pc(0x1700);
ASSERT_EQ(0x700U, regs_x86.GetRelPc(&invalid_elf, &map_info));
ASSERT_EQ(0x700U, invalid_elf.GetRelPc(regs_x86.pc(), &map_info));
ASSERT_EQ(0x700U, regs_x86.GetAdjustedPc(0x700U, &invalid_elf));
regs_x86_64.set_pc(0x1800);
ASSERT_EQ(0x800U, regs_x86_64.GetRelPc(&invalid_elf, &map_info));
ASSERT_EQ(0x800U, invalid_elf.GetRelPc(regs_x86_64.pc(), &map_info));
ASSERT_EQ(0x800U, regs_x86_64.GetAdjustedPc(0x800U, &invalid_elf));
}
@ -305,3 +284,5 @@ TEST_F(RegsTest, x86_64_set_from_raw) {
EXPECT_EQ(0x1200000000U, x86_64.sp());
EXPECT_EQ(0x4900000000U, x86_64.pc());
}
} // namespace unwindstack

7
libunwindstack/tests/SymbolsTest.cpp
View File

@ -32,10 +32,13 @@
#include <android-base/test_utils.h>
#include <gtest/gtest.h>
#include "Memory.h"
#include <unwindstack/Memory.h>
#include "MemoryFake.h"
#include "Symbols.h"
namespace unwindstack {
template <typename TypeParam>
class SymbolsTest : public ::testing::Test {
protected:
@ -333,3 +336,5 @@ REGISTER_TYPED_TEST_CASE_P(SymbolsTest, function_bounds_check, no_symbol, multip
typedef ::testing::Types<Elf32_Sym, Elf64_Sym> SymbolsTestTypes;
INSTANTIATE_TYPED_TEST_CASE_P(, SymbolsTest, SymbolsTestTypes);
} // namespace unwindstack

20
libunwindstack/tests/UnwindTest.cpp
View File

@ -31,12 +31,14 @@
#include <string>
#include <thread>
#include "Elf.h"
#include "MapInfo.h"
#include "Maps.h"
#include "Memory.h"
#include "Regs.h"
#include "RegsGetLocal.h"
#include <unwindstack/Elf.h>
#include <unwindstack/MapInfo.h>
#include <unwindstack/Maps.h>
#include <unwindstack/Memory.h>
#include <unwindstack/Regs.h>
#include <unwindstack/RegsGetLocal.h>
namespace unwindstack {
static std::atomic_bool g_ready(false);
static volatile bool g_ready_for_remote = false;
@ -71,7 +73,7 @@ static void VerifyUnwind(pid_t pid, Memory* memory, Maps* maps, Regs* regs) {
ASSERT_TRUE(map_info != nullptr) << ErrorMsg(function_names, function_name_index, unwind_stream);
Elf* elf = map_info->GetElf(pid, true);
uint64_t rel_pc = regs->GetRelPc(elf, map_info);
uint64_t rel_pc = elf->GetRelPc(regs->pc(), map_info);
uint64_t adjusted_rel_pc = rel_pc;
if (frame_num != 0) {
adjusted_rel_pc = regs->GetAdjustedPc(rel_pc, elf);
@ -210,7 +212,7 @@ TEST(UnwindTest, from_context) {
// Wait for context data.
void* ucontext;
for (size_t i = 0; i < 200; i++) {
for (size_t i = 0; i < 2000; i++) {
ucontext = reinterpret_cast<void*>(g_ucontext.load());
if (ucontext != nullptr) {
break;
@ -231,3 +233,5 @@ TEST(UnwindTest, from_context) {
g_finish = true;
thread.join();
}
} // namespace unwindstack

22
libunwindstack/tools/unwind.cpp
View File

@ -14,6 +14,7 @@
* limitations under the License.
*/
#include <elf.h>
#include <errno.h>
#include <inttypes.h>
#include <signal.h>
@ -27,10 +28,11 @@
#include <string>
#include "Elf.h"
#include "Maps.h"
#include "Memory.h"
#include "Regs.h"
#include <unwindstack/Elf.h>
#include <unwindstack/MapInfo.h>
#include <unwindstack/Maps.h>
#include <unwindstack/Memory.h>
#include <unwindstack/Regs.h>
static bool Attach(pid_t pid) {
if (ptrace(PTRACE_ATTACH, pid, 0, 0) == -1) {
@ -54,14 +56,14 @@ static bool Detach(pid_t pid) {
}
void DoUnwind(pid_t pid) {
RemoteMaps remote_maps(pid);
unwindstack::RemoteMaps remote_maps(pid);
if (!remote_maps.Parse()) {
printf("Failed to parse map data.\n");
return;
}
uint32_t machine_type;
Regs* regs = Regs::RemoteGet(pid, &machine_type);
unwindstack::Regs* regs = unwindstack::Regs::RemoteGet(pid, &machine_type);
if (regs == nullptr) {
printf("Unable to get remote reg data\n");
return;
@ -90,20 +92,20 @@ void DoUnwind(pid_t pid) {
}
printf("\n");
MemoryRemote remote_memory(pid);
unwindstack::MemoryRemote remote_memory(pid);
for (size_t frame_num = 0; frame_num < 64; frame_num++) {
if (regs->pc() == 0) {
break;
}
MapInfo* map_info = remote_maps.Find(regs->pc());
unwindstack::MapInfo* map_info = remote_maps.Find(regs->pc());
if (map_info == nullptr) {
printf("Failed to find map data for the pc\n");
break;
}
Elf* elf = map_info->GetElf(pid, true);
unwindstack::Elf* elf = map_info->GetElf(pid, true);
uint64_t rel_pc = regs->GetRelPc(elf, map_info);
uint64_t rel_pc = elf->GetRelPc(regs->pc(), map_info);
uint64_t adjusted_rel_pc = rel_pc;
// Don't need to adjust the first frame pc.
if (frame_num != 0) {

55
libunwindstack/tools/unwind_info.cpp
View File

@ -25,13 +25,16 @@
#include <sys/types.h>
#include <unistd.h>
#include <unwindstack/DwarfSection.h>
#include <unwindstack/DwarfStructs.h>
#include <unwindstack/Elf.h>
#include <unwindstack/ElfInterface.h>
#include <unwindstack/Log.h>
#include "ArmExidx.h"
#include "DwarfSection.h"
#include "DwarfStructs.h"
#include "Elf.h"
#include "ElfInterface.h"
#include "ElfInterfaceArm.h"
#include "Log.h"
namespace unwindstack {
void DumpArm(ElfInterfaceArm* interface) {
if (interface == nullptr) {
@ -100,27 +103,12 @@ void DumpDwarfSection(ElfInterface* interface, DwarfSection* section, uint64_t l
}
}
int main(int argc, char** argv) {
if (argc != 2) {
printf("Need to pass the name of an elf file to the program.\n");
return 1;
}
struct stat st;
if (stat(argv[1], &st) == -1) {
printf("Cannot stat %s: %s\n", argv[1], strerror(errno));
return 1;
}
if (!S_ISREG(st.st_mode)) {
printf("%s is not a regular file.\n", argv[1]);
return 1;
}
int GetElfInfo(const char* file) {
// Send all log messages to stdout.
log_to_stdout(true);
MemoryFileAtOffset* memory = new MemoryFileAtOffset;
if (!memory->Init(argv[1], 0)) {
if (!memory->Init(file, 0)) {
// Initializatation failed.
printf("Failed to init\n");
return 1;
@ -128,7 +116,7 @@ int main(int argc, char** argv) {
Elf elf(memory);
if (!elf.Init() || !elf.valid()) {
printf("%s is not a valid elf file.\n", argv[1]);
printf("%s is not a valid elf file.\n", file);
return 1;
}
@ -173,3 +161,24 @@ int main(int argc, char** argv) {
return 0;
}
} // namespace unwindstack
int main(int argc, char** argv) {
if (argc != 2) {
printf("Need to pass the name of an elf file to the program.\n");
return 1;
}
struct stat st;
if (stat(argv[1], &st) == -1) {
printf("Cannot stat %s: %s\n", argv[1], strerror(errno));
return 1;
}
if (!S_ISREG(st.st_mode)) {
printf("%s is not a regular file.\n", argv[1]);
return 1;
}
return unwindstack::GetElfInfo(argv[1]);
}

13
libunwindstack/tools/unwind_symbols.cpp
View File

@ -14,6 +14,7 @@
* limitations under the License.
*/
#include <elf.h>
#include <errno.h>
#include <inttypes.h>
#include <stdio.h>
@ -22,9 +23,9 @@
#include <sys/types.h>
#include <unistd.h>
#include "Elf.h"
#include "ElfInterface.h"
#include "Log.h"
#include <unwindstack/Elf.h>
#include <unwindstack/Log.h>
#include <unwindstack/Memory.h>
int main(int argc, char** argv) {
if (argc != 2) {
@ -43,15 +44,15 @@ int main(int argc, char** argv) {
}
// Send all log messages to stdout.
log_to_stdout(true);
unwindstack::log_to_stdout(true);
MemoryFileAtOffset* memory = new MemoryFileAtOffset;
unwindstack::MemoryFileAtOffset* memory = new unwindstack::MemoryFileAtOffset;
if (!memory->Init(argv[1], 0)) {
printf("Failed to init\n");
return 1;
}
Elf elf(memory);
unwindstack::Elf elf(memory);
if (!elf.Init() || !elf.valid()) {
printf("%s is not a valid elf file.\n", argv[1]);
return 1;