32e0a7509c
class now implements the Host functionality for a lot of things that make
sense by default so that subclasses can check:
int
PlatformSubclass::Foo ()
{
if (IsHost())
return Platform::Foo (); // Let the platform base class do the host specific stuff
// Platform subclass specific code...
int result = ...
return result;
}
Added new functions to the platform:
virtual const char *Platform::GetUserName (uint32_t uid);
virtual const char *Platform::GetGroupName (uint32_t gid);
The user and group names are cached locally so that remote platforms can avoid
sending packets multiple times to resolve this information.
Added the parent process ID to the ProcessInfo class.
Added a new ProcessInfoMatch class which helps us to match processes up
and changed the Host layer over to using this new class. The new class allows
us to search for processs:
1 - by name (equal to, starts with, ends with, contains, and regex)
2 - by pid
3 - And further check for parent pid == value, uid == value, gid == value,
euid == value, egid == value, arch == value, parent == value.
This is all hookup up to the "platform process list" command which required
adding dumping routines to dump process information. If the Host class
implements the process lookup routines, you can now lists processes on
your local machine:
machine1.foo.com % lldb
(lldb) platform process list
PID PARENT USER GROUP EFF USER EFF GROUP TRIPLE NAME
====== ====== ========== ========== ========== ========== ======================== ============================
99538 1 username usergroup username usergroup x86_64-apple-darwin FileMerge
94943 1 username usergroup username usergroup x86_64-apple-darwin mdworker
94852 244 username usergroup username usergroup x86_64-apple-darwin Safari
94727 244 username usergroup username usergroup x86_64-apple-darwin Xcode
92742 92710 username usergroup username usergroup i386-apple-darwin debugserver
This of course also works remotely with the lldb-platform:
machine1.foo.com % lldb-platform --listen 1234
machine2.foo.com % lldb
(lldb) platform create remote-macosx
Platform: remote-macosx
Connected: no
(lldb) platform connect connect://localhost:1444
Platform: remote-macosx
Triple: x86_64-apple-darwin
OS Version: 10.6.7 (10J869)
Kernel: Darwin Kernel Version 10.7.0: Sat Jan 29 15:17:16 PST 2011; root:xnu-1504.9.37~1/RELEASE_I386
Hostname: machine1.foo.com
Connected: yes
(lldb) platform process list
PID PARENT USER GROUP EFF USER EFF GROUP TRIPLE NAME
====== ====== ========== ========== ========== ========== ======================== ============================
99556 244 username usergroup username usergroup x86_64-apple-darwin trustevaluation
99548 65539 username usergroup username usergroup x86_64-apple-darwin lldb
99538 1 username usergroup username usergroup x86_64-apple-darwin FileMerge
94943 1 username usergroup username usergroup x86_64-apple-darwin mdworker
94852 244 username usergroup username usergroup x86_64-apple-darwin Safari
The lldb-platform implements everything with the Host:: layer, so this should
"just work" for linux. I will probably be adding more stuff to the Host layer
for launching processes and attaching to processes so that this support should
eventually just work as well.
Modified the target to be able to be created with an architecture that differs
from the main executable. This is needed for iOS debugging since we can have
an "armv6" binary which can run on an "armv7" machine, so we want to be able
to do:
% lldb
(lldb) platform create remote-ios
(lldb) file --arch armv7 a.out
Where "a.out" is an armv6 executable. The platform then can correctly decide
to open all "armv7" images for all dependent shared libraries.
Modified the disassembly to show the current PC value. Example output:
(lldb) disassemble --frame
a.out`main:
0x1eb7: pushl %ebp
0x1eb8: movl %esp, %ebp
0x1eba: pushl %ebx
0x1ebb: subl $20, %esp
0x1ebe: calll 0x1ec3 ; main + 12 at test.c:18
0x1ec3: popl %ebx
-> 0x1ec4: calll 0x1f12 ; getpid
0x1ec9: movl %eax, 4(%esp)
0x1ecd: leal 199(%ebx), %eax
0x1ed3: movl %eax, (%esp)
0x1ed6: calll 0x1f18 ; printf
0x1edb: leal 213(%ebx), %eax
0x1ee1: movl %eax, (%esp)
0x1ee4: calll 0x1f1e ; puts
0x1ee9: calll 0x1f0c ; getchar
0x1eee: movl $20, (%esp)
0x1ef5: calll 0x1e6a ; sleep_loop at test.c:6
0x1efa: movl $12, %eax
0x1eff: addl $20, %esp
0x1f02: popl %ebx
0x1f03: leave
0x1f04: ret
This can be handy when dealing with the new --line options that was recently
added:
(lldb) disassemble --line
a.out`main + 13 at test.c:19
18 {
-> 19 printf("Process: %i\n\n", getpid());
20 puts("Press any key to continue..."); getchar();
-> 0x1ec4: calll 0x1f12 ; getpid
0x1ec9: movl %eax, 4(%esp)
0x1ecd: leal 199(%ebx), %eax
0x1ed3: movl %eax, (%esp)
0x1ed6: calll 0x1f18 ; printf
Modified the ModuleList to have a lookup based solely on a UUID. Since the
UUID is typically the MD5 checksum of a binary image, there is no need
to give the path and architecture when searching for a pre-existing
image in an image list.
Now that we support remote debugging a bit better, our lldb_private::Module
needs to be able to track what the original path for file was as the platform
knows it, as well as where the file is locally. The module has the two
following functions to retrieve both paths:
const FileSpec &Module::GetFileSpec () const;
const FileSpec &Module::GetPlatformFileSpec () const;
llvm-svn: 128563
598 lines
22 KiB
C++
598 lines
22 KiB
C++
//===-- CommandObjectSource.cpp ---------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "CommandObjectSource.h"
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// C Includes
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// C++ Includes
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// Other libraries and framework includes
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// Project includes
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#include "lldb/Interpreter/Args.h"
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#include "lldb/Core/Debugger.h"
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#include "lldb/Interpreter/CommandInterpreter.h"
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#include "lldb/Interpreter/CommandReturnObject.h"
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#include "lldb/Host/FileSpec.h"
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#include "lldb/Target/Process.h"
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#include "lldb/Core/SourceManager.h"
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#include "lldb/Target/TargetList.h"
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#include "lldb/Interpreter/CommandCompletions.h"
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#include "lldb/Interpreter/Options.h"
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using namespace lldb;
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using namespace lldb_private;
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//-------------------------------------------------------------------------
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// CommandObjectSourceList
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//-------------------------------------------------------------------------
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class CommandObjectSourceInfo : public CommandObject
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{
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class CommandOptions : public Options
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{
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public:
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CommandOptions () :
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Options()
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{
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}
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~CommandOptions ()
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{
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}
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Error
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SetOptionValue (int option_idx, const char *option_arg)
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{
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Error error;
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const char short_option = g_option_table[option_idx].short_option;
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switch (short_option)
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{
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case 'l':
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start_line = Args::StringToUInt32 (option_arg, 0);
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if (start_line == 0)
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error.SetErrorStringWithFormat("Invalid line number: '%s'.\n", option_arg);
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break;
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case 'f':
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file_name = option_arg;
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break;
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default:
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error.SetErrorStringWithFormat("Unrecognized short option '%c'.\n", short_option);
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break;
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}
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return error;
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}
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void
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ResetOptionValues ()
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{
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file_spec.Clear();
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file_name.clear();
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start_line = 0;
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}
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const OptionDefinition*
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GetDefinitions ()
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{
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return g_option_table;
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}
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static OptionDefinition g_option_table[];
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// Instance variables to hold the values for command options.
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FileSpec file_spec;
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std::string file_name;
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uint32_t start_line;
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};
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public:
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CommandObjectSourceInfo(CommandInterpreter &interpreter) :
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CommandObject (interpreter,
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"source info",
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"Display information about the source lines from the current executable's debug info.",
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"source info [<cmd-options>]")
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{
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}
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~CommandObjectSourceInfo ()
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{
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}
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Options *
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GetOptions ()
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{
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return &m_options;
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}
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bool
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Execute
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(
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Args& args,
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CommandReturnObject &result
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)
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{
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result.AppendError ("Not yet implemented");
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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protected:
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CommandOptions m_options;
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};
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OptionDefinition
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CommandObjectSourceInfo::CommandOptions::g_option_table[] =
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{
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{ LLDB_OPT_SET_1, false, "line", 'l', required_argument, NULL, 0, eArgTypeLineNum, "The line number at which to start the display source."},
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{ LLDB_OPT_SET_1, false, "file", 'f', required_argument, NULL, CommandCompletions::eSourceFileCompletion, eArgTypeFilename, "The file from which to display source."},
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{ 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL }
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};
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#pragma mark CommandObjectSourceList
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//-------------------------------------------------------------------------
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// CommandObjectSourceList
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//-------------------------------------------------------------------------
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class CommandObjectSourceList : public CommandObject
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{
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class CommandOptions : public Options
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{
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public:
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CommandOptions () :
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Options()
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{
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}
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~CommandOptions ()
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{
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}
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Error
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SetOptionValue (int option_idx, const char *option_arg)
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{
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Error error;
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const char short_option = g_option_table[option_idx].short_option;
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switch (short_option)
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{
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case 'l':
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start_line = Args::StringToUInt32 (option_arg, 0);
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if (start_line == 0)
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error.SetErrorStringWithFormat("Invalid line number: '%s'.\n", option_arg);
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break;
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case 'c':
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num_lines = Args::StringToUInt32 (option_arg, 0);
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if (num_lines == 0)
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error.SetErrorStringWithFormat("Invalid line count: '%s'.\n", option_arg);
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break;
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case 'f':
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file_name = option_arg;
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break;
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case 'n':
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symbol_name = option_arg;
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break;
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case 's':
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m_modules.push_back (std::string (option_arg));
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break;
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default:
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error.SetErrorStringWithFormat("Unrecognized short option '%c'.\n", short_option);
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break;
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}
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return error;
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}
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void
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ResetOptionValues ()
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{
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file_spec.Clear();
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file_name.clear();
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symbol_name.clear();
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start_line = 0;
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num_lines = 10;
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m_modules.clear();
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}
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const OptionDefinition*
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GetDefinitions ()
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{
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return g_option_table;
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}
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static OptionDefinition g_option_table[];
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// Instance variables to hold the values for command options.
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FileSpec file_spec;
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std::string file_name;
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std::string symbol_name;
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uint32_t start_line;
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uint32_t num_lines;
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STLStringArray m_modules;
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};
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public:
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CommandObjectSourceList(CommandInterpreter &interpreter) :
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CommandObject (interpreter,
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"source list",
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"Display source code (as specified) based on the current executable's debug info.",
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NULL)
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{
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CommandArgumentEntry arg;
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CommandArgumentData file_arg;
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// Define the first (and only) variant of this arg.
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file_arg.arg_type = eArgTypeFilename;
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file_arg.arg_repetition = eArgRepeatOptional;
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// There is only one variant this argument could be; put it into the argument entry.
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arg.push_back (file_arg);
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// Push the data for the first argument into the m_arguments vector.
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m_arguments.push_back (arg);
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}
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~CommandObjectSourceList ()
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{
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}
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Options *
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GetOptions ()
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{
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return &m_options;
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}
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bool
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Execute
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(
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Args& args,
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CommandReturnObject &result
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)
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{
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const int argc = args.GetArgumentCount();
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if (argc != 0)
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{
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result.AppendErrorWithFormat("'%s' takes no arguments, only flags.\n", GetCommandName());
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result.SetStatus (eReturnStatusFailed);
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}
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ExecutionContext exe_ctx(m_interpreter.GetDebugger().GetExecutionContext());
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if (!m_options.symbol_name.empty())
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{
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// Displaying the source for a symbol:
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Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get();
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if (target == NULL)
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{
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result.AppendError ("invalid target, set executable file using 'file' command");
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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SymbolContextList sc_list;
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ConstString name(m_options.symbol_name.c_str());
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bool include_symbols = false;
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bool append = true;
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size_t num_matches = 0;
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if (m_options.m_modules.size() > 0)
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{
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ModuleList matching_modules;
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for (unsigned i = 0, e = m_options.m_modules.size(); i != e; i++)
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{
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FileSpec module_spec(m_options.m_modules[i].c_str(), false);
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if (module_spec)
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{
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matching_modules.Clear();
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target->GetImages().FindModules (&module_spec, NULL, NULL, NULL, matching_modules);
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num_matches += matching_modules.FindFunctions (name, eFunctionNameTypeBase, include_symbols, append, sc_list);
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}
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}
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}
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else
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{
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num_matches = target->GetImages().FindFunctions (name, eFunctionNameTypeBase, include_symbols, append, sc_list);
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}
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SymbolContext sc;
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if (num_matches == 0)
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{
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result.AppendErrorWithFormat("Could not find function named: \"%s\".\n", m_options.symbol_name.c_str());
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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sc_list.GetContextAtIndex (0, sc);
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FileSpec start_file;
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uint32_t start_line;
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uint32_t end_line;
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FileSpec end_file;
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if (sc.function != NULL)
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{
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sc.function->GetStartLineSourceInfo (start_file, start_line);
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if (start_line == 0)
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{
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result.AppendErrorWithFormat("Could not find line information for start of function: \"%s\".\n", m_options.symbol_name.c_str());
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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sc.function->GetEndLineSourceInfo (end_file, end_line);
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}
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else
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{
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result.AppendErrorWithFormat("Could not find function info for: \"%s\".\n", m_options.symbol_name.c_str());
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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if (num_matches > 1)
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{
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// This could either be because there are multiple functions of this name, in which case
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// we'll have to specify this further... Or it could be because there are multiple inlined instances
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// of one function. So run through the matches and if they all have the same file & line then we can just
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// list one.
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bool found_multiple = false;
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for (size_t i = 1; i < num_matches; i++)
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{
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SymbolContext scratch_sc;
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sc_list.GetContextAtIndex (i, scratch_sc);
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if (scratch_sc.function != NULL)
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{
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FileSpec scratch_file;
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uint32_t scratch_line;
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scratch_sc.function->GetStartLineSourceInfo (scratch_file, scratch_line);
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if (scratch_file != start_file
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|| scratch_line != start_line)
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{
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found_multiple = true;
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break;
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}
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}
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}
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if (found_multiple)
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{
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StreamString s;
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for (size_t i = 0; i < num_matches; i++)
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{
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SymbolContext scratch_sc;
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sc_list.GetContextAtIndex (i, scratch_sc);
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if (scratch_sc.function != NULL)
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{
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s.Printf("\n%d: ", i);
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scratch_sc.function->Dump (&s, true);
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}
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}
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result.AppendErrorWithFormat("Multiple functions found matching: %s: \n%s\n",
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m_options.symbol_name.c_str(),
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s.GetData());
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result.SetStatus (eReturnStatusFailed);
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return false;
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}
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}
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// This is a little hacky, but the first line table entry for a function points to the "{" that
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// starts the function block. It would be nice to actually get the function
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// declaration in there too. So back up a bit, but not further than what you're going to display.
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size_t lines_to_back_up = m_options.num_lines >= 10 ? 5 : m_options.num_lines/2;
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uint32_t line_no;
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if (start_line <= lines_to_back_up)
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line_no = 1;
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else
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line_no = start_line - lines_to_back_up;
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// For fun, if the function is shorter than the number of lines we're supposed to display,
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// only display the function...
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if (end_line != 0)
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{
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if (m_options.num_lines > end_line - line_no)
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m_options.num_lines = end_line - line_no;
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}
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char path_buf[PATH_MAX+1];
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start_file.GetPath(path_buf, PATH_MAX);
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result.AppendMessageWithFormat("File: %s.\n", path_buf);
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m_interpreter.GetDebugger().GetSourceManager().DisplaySourceLinesWithLineNumbers (start_file,
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line_no,
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0,
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m_options.num_lines,
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"",
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&result.GetOutputStream());
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result.SetStatus (eReturnStatusSuccessFinishResult);
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return true;
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}
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else if (m_options.file_name.empty())
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{
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// Last valid source manager context, or the current frame if no
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// valid last context in source manager.
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// One little trick here, if you type the exact same list command twice in a row, it is
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// more likely because you typed it once, then typed it again
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if (m_options.start_line == 0)
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{
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if (m_interpreter.GetDebugger().GetSourceManager().DisplayMoreWithLineNumbers (&result.GetOutputStream()))
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{
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result.SetStatus (eReturnStatusSuccessFinishResult);
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}
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}
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else
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{
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if (m_interpreter.GetDebugger().GetSourceManager().DisplaySourceLinesWithLineNumbersUsingLastFile(
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m_options.start_line, // Line to display
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0, // Lines before line to display
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m_options.num_lines, // Lines after line to display
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"", // Don't mark "line"
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&result.GetOutputStream()))
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{
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result.SetStatus (eReturnStatusSuccessFinishResult);
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}
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|
}
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}
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else
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{
|
|
const char *filename = m_options.file_name.c_str();
|
|
Target *target = m_interpreter.GetDebugger().GetSelectedTarget().get();
|
|
if (target == NULL)
|
|
{
|
|
result.AppendError ("invalid target, set executable file using 'file' command");
|
|
result.SetStatus (eReturnStatusFailed);
|
|
return false;
|
|
}
|
|
|
|
|
|
bool check_inlines = false;
|
|
SymbolContextList sc_list;
|
|
size_t num_matches = 0;
|
|
|
|
if (m_options.m_modules.size() > 0)
|
|
{
|
|
ModuleList matching_modules;
|
|
for (unsigned i = 0, e = m_options.m_modules.size(); i != e; i++)
|
|
{
|
|
FileSpec module_spec(m_options.m_modules[i].c_str(), false);
|
|
if (module_spec)
|
|
{
|
|
matching_modules.Clear();
|
|
target->GetImages().FindModules (&module_spec, NULL, NULL, NULL, matching_modules);
|
|
num_matches += matching_modules.ResolveSymbolContextForFilePath (filename,
|
|
0,
|
|
check_inlines,
|
|
eSymbolContextModule | eSymbolContextCompUnit,
|
|
sc_list);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
num_matches = target->GetImages().ResolveSymbolContextForFilePath (filename,
|
|
0,
|
|
check_inlines,
|
|
eSymbolContextModule | eSymbolContextCompUnit,
|
|
sc_list);
|
|
}
|
|
|
|
if (num_matches == 0)
|
|
{
|
|
result.AppendErrorWithFormat("Could not find source file \"%s\".\n",
|
|
m_options.file_name.c_str());
|
|
result.SetStatus (eReturnStatusFailed);
|
|
return false;
|
|
}
|
|
|
|
if (num_matches > 1)
|
|
{
|
|
SymbolContext sc;
|
|
bool got_multiple = false;
|
|
FileSpec *test_cu_spec = NULL;
|
|
|
|
for (unsigned i = 0; i < num_matches; i++)
|
|
{
|
|
sc_list.GetContextAtIndex(i, sc);
|
|
if (sc.comp_unit)
|
|
{
|
|
if (test_cu_spec)
|
|
{
|
|
if (test_cu_spec != static_cast<FileSpec *> (sc.comp_unit))
|
|
got_multiple = true;
|
|
break;
|
|
}
|
|
else
|
|
test_cu_spec = sc.comp_unit;
|
|
}
|
|
}
|
|
if (got_multiple)
|
|
{
|
|
result.AppendErrorWithFormat("Multiple source files found matching: \"%s.\"\n",
|
|
m_options.file_name.c_str());
|
|
result.SetStatus (eReturnStatusFailed);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
SymbolContext sc;
|
|
if (sc_list.GetContextAtIndex(0, sc))
|
|
{
|
|
if (sc.comp_unit)
|
|
{
|
|
m_interpreter.GetDebugger().GetSourceManager().DisplaySourceLinesWithLineNumbers (sc.comp_unit,
|
|
m_options.start_line,
|
|
0,
|
|
m_options.num_lines,
|
|
"",
|
|
&result.GetOutputStream());
|
|
|
|
result.SetStatus (eReturnStatusSuccessFinishResult);
|
|
}
|
|
else
|
|
{
|
|
result.AppendErrorWithFormat("No comp unit found for: \"%s.\"\n",
|
|
m_options.file_name.c_str());
|
|
result.SetStatus (eReturnStatusFailed);
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
return result.Succeeded();
|
|
}
|
|
|
|
virtual const char *GetRepeatCommand (Args ¤t_command_args, uint32_t index)
|
|
{
|
|
return m_cmd_name.c_str();
|
|
}
|
|
|
|
protected:
|
|
CommandOptions m_options;
|
|
|
|
};
|
|
|
|
OptionDefinition
|
|
CommandObjectSourceList::CommandOptions::g_option_table[] =
|
|
{
|
|
{ LLDB_OPT_SET_ALL, false, "count", 'c', required_argument, NULL, 0, eArgTypeCount, "The number of source lines to display."},
|
|
{ LLDB_OPT_SET_ALL, false, "shlib", 's', required_argument, NULL, CommandCompletions::eModuleCompletion, eArgTypeShlibName, "Look up the source file in the given shared library."},
|
|
{ LLDB_OPT_SET_1, false, "file", 'f', required_argument, NULL, CommandCompletions::eSourceFileCompletion, eArgTypeFilename, "The file from which to display source."},
|
|
{ LLDB_OPT_SET_1, false, "line", 'l', required_argument, NULL, 0, eArgTypeLineNum, "The line number at which to start the display source."},
|
|
{ LLDB_OPT_SET_2, false, "name", 'n', required_argument, NULL, CommandCompletions::eSymbolCompletion, eArgTypeSymbol, "The name of a function whose source to display."},
|
|
{ 0, false, NULL, 0, 0, NULL, 0, eArgTypeNone, NULL }
|
|
};
|
|
|
|
#pragma mark CommandObjectMultiwordSource
|
|
|
|
//-------------------------------------------------------------------------
|
|
// CommandObjectMultiwordSource
|
|
//-------------------------------------------------------------------------
|
|
|
|
CommandObjectMultiwordSource::CommandObjectMultiwordSource (CommandInterpreter &interpreter) :
|
|
CommandObjectMultiword (interpreter,
|
|
"source",
|
|
"A set of commands for accessing source file information",
|
|
"source <subcommand> [<subcommand-options>]")
|
|
{
|
|
LoadSubCommand ("info", CommandObjectSP (new CommandObjectSourceInfo (interpreter)));
|
|
LoadSubCommand ("list", CommandObjectSP (new CommandObjectSourceList (interpreter)));
|
|
}
|
|
|
|
CommandObjectMultiwordSource::~CommandObjectMultiwordSource ()
|
|
{
|
|
}
|
|
|