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usr / src / contrib / llvm-project / lldb / source / Plugins / Process / Utility /

📁 ..
📄 ARMDefines.h(6.17 KB)
📄 ARMUtils.h(10.38 KB)
📄 AuxVector.cpp(3.61 KB)
📄 AuxVector.h(3 KB)
📄 DynamicRegisterInfo.cpp(29.35 KB)
📄 DynamicRegisterInfo.h(3.3 KB)
📄 FreeBSDSignals.cpp(5.48 KB)
📄 FreeBSDSignals.h(802 B)
📄 GDBRemoteSignals.cpp(648 B)
📄 GDBRemoteSignals.h(893 B)
📄 HistoryThread.cpp(2.79 KB)
📄 HistoryThread.h(2.87 KB)
📄 HistoryUnwind.cpp(2.27 KB)
📄 HistoryUnwind.h(1.42 KB)
📄 InferiorCallPOSIX.cpp(6.44 KB)
📄 InferiorCallPOSIX.h(1.09 KB)
📄 InstructionUtils.h(4.01 KB)
📄 LinuxProcMaps.cpp(4.35 KB)
📄 LinuxProcMaps.h(954 B)
📄 LinuxSignals.cpp(5.43 KB)
📄 LinuxSignals.h(790 B)
📄 MipsLinuxSignals.cpp(5.46 KB)
📄 MipsLinuxSignals.h(816 B)
📄 NativeRegisterContextRegisterInfo.cpp(1.48 KB)
📄 NativeRegisterContextRegisterInfo.h(1.31 KB)
📄 NetBSDSignals.cpp(3.09 KB)
📄 NetBSDSignals.h(795 B)
📄 RegisterContextDarwinConstants.h(852 B)
📄 RegisterContextDarwin_arm.cpp(41.55 KB)
📄 RegisterContextDarwin_arm.h(6.99 KB)
📄 RegisterContextDarwin_arm64.cpp(27.29 KB)
📄 RegisterContextDarwin_arm64.h(6.31 KB)
📄 RegisterContextDarwin_i386.cpp(23.66 KB)
📄 RegisterContextDarwin_i386.h(5.08 KB)
📄 RegisterContextDarwin_x86_64.cpp(26.65 KB)
📄 RegisterContextDarwin_x86_64.h(5.28 KB)
📄 RegisterContextDummy.cpp(3.78 KB)
📄 RegisterContextDummy.h(2.16 KB)
📄 RegisterContextFreeBSD_i386.cpp(2.15 KB)
📄 RegisterContextFreeBSD_i386.h(886 B)
📄 RegisterContextFreeBSD_mips64.cpp(3.43 KB)
📄 RegisterContextFreeBSD_mips64.h(1007 B)
📄 RegisterContextFreeBSD_powerpc.cpp(5.29 KB)
📄 RegisterContextFreeBSD_powerpc.h(1.74 KB)
📄 RegisterContextFreeBSD_x86_64.cpp(4.27 KB)
📄 RegisterContextFreeBSD_x86_64.h(998 B)
📄 RegisterContextHistory.cpp(3.9 KB)
📄 RegisterContextHistory.h(2.23 KB)
📄 RegisterContextLinux_i386.cpp(4.5 KB)
📄 RegisterContextLinux_i386.h(1.07 KB)
📄 RegisterContextLinux_mips.cpp(5.82 KB)
📄 RegisterContextLinux_mips.h(1.14 KB)
📄 RegisterContextLinux_mips64.cpp(7.67 KB)
📄 RegisterContextLinux_mips64.h(1.24 KB)
📄 RegisterContextLinux_s390x.cpp(2.33 KB)
📄 RegisterContextLinux_s390x.h(1.19 KB)
📄 RegisterContextLinux_x86_64.cpp(6.19 KB)
📄 RegisterContextLinux_x86_64.h(1.2 KB)
📄 RegisterContextMach_arm.cpp(2.59 KB)
📄 RegisterContextMach_arm.h(1.32 KB)
📄 RegisterContextMach_i386.cpp(2.13 KB)
📄 RegisterContextMach_i386.h(1.21 KB)
📄 RegisterContextMach_x86_64.cpp(2.24 KB)
📄 RegisterContextMach_x86_64.h(1.24 KB)
📄 RegisterContextMemory.cpp(4.75 KB)
📄 RegisterContextMemory.h(2.71 KB)
📄 RegisterContextNetBSD_i386.cpp(2.87 KB)
📄 RegisterContextNetBSD_i386.h(882 B)
📄 RegisterContextNetBSD_x86_64.cpp(5.49 KB)
📄 RegisterContextNetBSD_x86_64.h(1.06 KB)
📄 RegisterContextOpenBSD_i386.cpp(2.07 KB)
📄 RegisterContextOpenBSD_i386.h(886 B)
📄 RegisterContextOpenBSD_x86_64.cpp(2.78 KB)
📄 RegisterContextOpenBSD_x86_64.h(998 B)
📄 RegisterContextPOSIX_arm.cpp(6.62 KB)
📄 RegisterContextPOSIX_arm.h(2.87 KB)
📄 RegisterContextPOSIX_arm64.cpp(3.03 KB)
📄 RegisterContextPOSIX_arm64.h(2.3 KB)
📄 RegisterContextPOSIX_mips64.cpp(5.75 KB)
📄 RegisterContextPOSIX_mips64.h(2.41 KB)
📄 RegisterContextPOSIX_powerpc.cpp(5.91 KB)
📄 RegisterContextPOSIX_powerpc.h(4.75 KB)
📄 RegisterContextPOSIX_ppc64le.cpp(7.28 KB)
📄 RegisterContextPOSIX_ppc64le.h(2.27 KB)
📄 RegisterContextPOSIX_s390x.cpp(5.67 KB)
📄 RegisterContextPOSIX_s390x.h(2.08 KB)
📄 RegisterContextPOSIX_x86.cpp(22.13 KB)
📄 RegisterContextPOSIX_x86.h(5.31 KB)
📄 RegisterContextThreadMemory.cpp(6.75 KB)
📄 RegisterContextThreadMemory.h(3.71 KB)
📄 RegisterContextWindows_i386.cpp(4.35 KB)
📄 RegisterContextWindows_i386.h(937 B)
📄 RegisterContextWindows_x86_64.cpp(6.78 KB)
📄 RegisterContextWindows_x86_64.h(949 B)
📄 RegisterContext_mips.h(6.85 KB)
📄 RegisterContext_powerpc.h(2.82 KB)
📄 RegisterContext_s390x.h(2.04 KB)
📄 RegisterContext_x86.h(9.61 KB)
📄 RegisterInfoAndSetInterface.h(1.14 KB)
📄 RegisterInfoInterface.h(2.28 KB)
📄 RegisterInfoPOSIX_arm.cpp(3.51 KB)
📄 RegisterInfoPOSIX_arm.h(1.58 KB)
📄 RegisterInfoPOSIX_arm64.cpp(7.83 KB)
📄 RegisterInfoPOSIX_arm64.h(2.27 KB)
📄 RegisterInfoPOSIX_ppc64le.cpp(1.95 KB)
📄 RegisterInfoPOSIX_ppc64le.h(1.02 KB)
📄 RegisterInfos_arm.h(37.11 KB)
📄 RegisterInfos_arm64.h(28.46 KB)
📄 RegisterInfos_i386.h(15.93 KB)
📄 RegisterInfos_mips.h(16.18 KB)
📄 RegisterInfos_mips64.h(23.21 KB)
📄 RegisterInfos_powerpc.h(14.8 KB)
📄 RegisterInfos_ppc64.h(16.62 KB)
📄 RegisterInfos_ppc64le.h(23.77 KB)
📄 RegisterInfos_s390x.h(6.47 KB)
📄 RegisterInfos_x86_64.h(24.31 KB)
📄 StopInfoMachException.cpp(16.87 KB)
📄 StopInfoMachException.h(1.78 KB)
📄 ThreadMemory.cpp(3.04 KB)
📄 ThreadMemory.h(3.22 KB)
📄 lldb-arm-register-enums.h(3.56 KB)
📄 lldb-arm64-register-enums.h(4.87 KB)
📄 lldb-mips-freebsd-register-enums.h(1.62 KB)
📄 lldb-mips-linux-register-enums.h(7.25 KB)
📄 lldb-ppc64-register-enums.h(2.91 KB)
📄 lldb-ppc64le-register-enums.h(4.63 KB)
📄 lldb-s390x-register-enums.h(2.31 KB)
📄 lldb-x86-register-enums.h(7.93 KB)

Editing: LinuxProcMaps.cpp

//===-- LinuxProcMaps.cpp -------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include "LinuxProcMaps.h"
#include "llvm/ADT/StringRef.h"
#include "lldb/Target/MemoryRegionInfo.h"
#include "lldb/Utility/Status.h"
#include "lldb/Utility/StringExtractor.h"

using namespace lldb_private;

static Status
ParseMemoryRegionInfoFromProcMapsLine(llvm::StringRef maps_line,
                                      MemoryRegionInfo &memory_region_info) {
  memory_region_info.Clear();
  
  StringExtractor line_extractor(maps_line);
  
  // Format: {address_start_hex}-{address_end_hex} perms offset  dev   inode
  // pathname perms: rwxp   (letter is present if set, '-' if not, final
  // character is p=private, s=shared).
  
  // Parse out the starting address
  lldb::addr_t start_address = line_extractor.GetHexMaxU64(false, 0);
  
  // Parse out hyphen separating start and end address from range.
  if (!line_extractor.GetBytesLeft() || (line_extractor.GetChar() != '-'))
    return Status(
        "malformed /proc/{pid}/maps entry, missing dash between address range");
  
  // Parse out the ending address
  lldb::addr_t end_address = line_extractor.GetHexMaxU64(false, start_address);
  
  // Parse out the space after the address.
  if (!line_extractor.GetBytesLeft() || (line_extractor.GetChar() != ' '))
    return Status(
        "malformed /proc/{pid}/maps entry, missing space after range");
  
  // Save the range.
  memory_region_info.GetRange().SetRangeBase(start_address);
  memory_region_info.GetRange().SetRangeEnd(end_address);
  
  // Any memory region in /proc/{pid}/maps is by definition mapped into the
  // process.
  memory_region_info.SetMapped(MemoryRegionInfo::OptionalBool::eYes);
  
  // Parse out each permission entry.
  if (line_extractor.GetBytesLeft() < 4)
    return Status("malformed /proc/{pid}/maps entry, missing some portion of "
                  "permissions");
  
  // Handle read permission.
  const char read_perm_char = line_extractor.GetChar();
  if (read_perm_char == 'r')
    memory_region_info.SetReadable(MemoryRegionInfo::OptionalBool::eYes);
  else if (read_perm_char == '-')
    memory_region_info.SetReadable(MemoryRegionInfo::OptionalBool::eNo);
  else
    return Status("unexpected /proc/{pid}/maps read permission char");
  
  // Handle write permission.
  const char write_perm_char = line_extractor.GetChar();
  if (write_perm_char == 'w')
    memory_region_info.SetWritable(MemoryRegionInfo::OptionalBool::eYes);
  else if (write_perm_char == '-')
    memory_region_info.SetWritable(MemoryRegionInfo::OptionalBool::eNo);
  else
    return Status("unexpected /proc/{pid}/maps write permission char");
  
  // Handle execute permission.
  const char exec_perm_char = line_extractor.GetChar();
  if (exec_perm_char == 'x')
    memory_region_info.SetExecutable(MemoryRegionInfo::OptionalBool::eYes);
  else if (exec_perm_char == '-')
    memory_region_info.SetExecutable(MemoryRegionInfo::OptionalBool::eNo);
  else
    return Status("unexpected /proc/{pid}/maps exec permission char");
  
  line_extractor.GetChar();              // Read the private bit
  line_extractor.SkipSpaces();           // Skip the separator
  line_extractor.GetHexMaxU64(false, 0); // Read the offset
  line_extractor.GetHexMaxU64(false, 0); // Read the major device number
  line_extractor.GetChar();              // Read the device id separator
  line_extractor.GetHexMaxU64(false, 0); // Read the major device number
  line_extractor.SkipSpaces();           // Skip the separator
  line_extractor.GetU64(0, 10);          // Read the inode number
  
  line_extractor.SkipSpaces();
  const char *name = line_extractor.Peek();
  if (name)
    memory_region_info.SetName(name);
  
  return Status();
}

void lldb_private::ParseLinuxMapRegions(llvm::StringRef linux_map,
                                        LinuxMapCallback const &callback) {
  llvm::StringRef lines(linux_map);
  llvm::StringRef line;
  while (!lines.empty()) {
    std::tie(line, lines) = lines.split('\n');
    MemoryRegionInfo region;
    Status error = ParseMemoryRegionInfoFromProcMapsLine(line, region);
    if (!callback(region, error))
      break;
  }
}

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Editing: LinuxProcMaps.cpp

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