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Commit c6776061 authored by Christopher Ferris's avatar Christopher Ferris
Browse files

Update for libunwindstack shared_ptr MapInfos. 

Bug: 120606663

Test: Unit tests pass.
Change-Id: Ieae157388e8571345ed8968a2b5c2aa34464689f
Merged-In: Ieae157388e8571345ed8968a2b5c2aa34464689f
(cherry picked from commit 853733b6)
parent 6a58c592

debuggerd/libdebuggerd/test/UnwinderMock.h

+3 −1
Original line number Diff line number Diff line
@@ -16,6 +16,8 @@ 


#pragma once



#include <memory>



#include <unwindstack/MapInfo.h>

#include <unwindstack/Maps.h>

#include <unwindstack/Unwinder.h>
@@ -31,7 +33,7 @@ class UnwinderMock : public unwindstack::Unwinder { 
  }



  void MockSetBuildID(uint64_t offset, const std::string& build_id) {

    unwindstack::MapInfo* map_info = GetMaps()->Find(offset);

    std::shared_ptr<unwindstack::MapInfo> map_info = GetMaps()->Find(offset);

    if (map_info != nullptr) {

      map_info->SetBuildID(std::string(build_id));

    }

debuggerd/libdebuggerd/tombstone.cpp

+3 −3
Original line number Diff line number Diff line
@@ -107,7 +107,7 @@ static std::string get_stack_overflow_cause(uint64_t fault_addr, uint64_t sp, 
    // In this case, the sp will be in either an invalid map if triggered

    // on the main thread, or in a guard map if in another thread, which

    // will be the first case or second case from below.

    unwindstack::MapInfo* map_info = maps->Find(sp);

    auto map_info = maps->Find(sp);

    if (map_info == nullptr) {

      return "stack pointer is in a non-existent map; likely due to stack overflow.";

    } else if ((map_info->flags() & (PROT_READ | PROT_WRITE)) != (PROT_READ | PROT_WRITE)) {
@@ -158,7 +158,7 @@ static void dump_probable_cause(log_t* log, unwindstack::Unwinder* unwinder, 
    }

  } else if (si->si_signo == SIGSEGV && si->si_code == SEGV_ACCERR) {

    uint64_t fault_addr = reinterpret_cast<uint64_t>(si->si_addr);

    unwindstack::MapInfo* map_info = maps->Find(fault_addr);

    auto map_info = maps->Find(fault_addr);

    if (map_info != nullptr && map_info->flags() == PROT_EXEC) {

      cause = "execute-only (no-read) memory access error; likely due to data in .text.";

    } else {
@@ -396,7 +396,7 @@ void dump_memory_and_code(log_t* log, unwindstack::Maps* maps, unwindstack::Memo 
  regs->IterateRegisters([log, maps, memory](const char* reg_name, uint64_t reg_value) {

    std::string label{"memory near "s + reg_name};

    if (maps) {

      unwindstack::MapInfo* map_info = maps->Find(untag_address(reg_value));

      auto map_info = maps->Find(untag_address(reg_value));

      if (map_info != nullptr && !map_info->name().empty()) {

        label += " (" + map_info->name() + ")";

      }

debuggerd/libdebuggerd/tombstone_proto.cpp

+5 −5
Original line number Diff line number Diff line
@@ -103,7 +103,7 @@ static std::optional<std::string> get_stack_overflow_cause(uint64_t fault_addr, 
    // In this case, the sp will be in either an invalid map if triggered

    // on the main thread, or in a guard map if in another thread, which

    // will be the first case or second case from below.

    unwindstack::MapInfo* map_info = maps->Find(sp);

    std::shared_ptr<unwindstack::MapInfo> map_info = maps->Find(sp);

    if (map_info == nullptr) {

      return "stack pointer is in a non-existent map; likely due to stack overflow.";

    } else if ((map_info->flags() & (PROT_READ | PROT_WRITE)) != (PROT_READ | PROT_WRITE)) {
@@ -226,7 +226,7 @@ static void dump_probable_cause(Tombstone* tombstone, unwindstack::Unwinder* unw 
      cause = get_stack_overflow_cause(fault_addr, main_thread.registers->sp(), maps);

    }

  } else if (si->si_signo == SIGSEGV && si->si_code == SEGV_ACCERR) {

    unwindstack::MapInfo* map_info = maps->Find(fault_addr);

    auto map_info = maps->Find(fault_addr);

    if (map_info != nullptr && map_info->flags() == PROT_EXEC) {

      cause = "execute-only (no-read) memory access error; likely due to data in .text.";

    } else {
@@ -342,8 +342,8 @@ void fill_in_backtrace_frame(BacktraceFrame* f, const unwindstack::FrameData& fr 


  f->set_file_map_offset(frame.map_elf_start_offset);



  unwindstack::MapInfo* map_info = maps->Find(frame.map_start);

  if (map_info) {

  auto map_info = maps->Find(frame.map_start);

  if (map_info.get() != nullptr) {

    f->set_build_id(map_info->GetPrintableBuildID());

  }

}
@@ -370,7 +370,7 @@ static void dump_thread(Tombstone* tombstone, unwindstack::Unwinder* unwinder, 
          MemoryDump dump;



          dump.set_register_name(name);

          unwindstack::MapInfo* map_info = maps->Find(untag_address(value));

          std::shared_ptr<unwindstack::MapInfo> map_info = maps->Find(untag_address(value));

          if (map_info) {

            dump.set_mapping_name(map_info->name());

          }