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simple plugin now works with Linux fix assert in SetPluginInfo implement Linux ePathTypeLLDBSystemPlugins and ePathTypeLLDBUserPlugins implement Linux Host::Backtrace and Host::GetEnvironment add .gnu_debugdata comment 

Differential Revision: http://llvm-reviews.chandlerc.com/D1159

llvm-svn: 186475
This commit is contained in:
Michael Sartain 2013-07-17 00:26:30 +00:00
parent dfb7687162
commit 3cf443ddd6
5 changed files with 76 additions and 13 deletions
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7
lldb/source/Core/Debugger.cpp
View File

@ -413,6 +413,7 @@ Debugger::LoadPlugin (const FileSpec& spec, Error& error)
}
lldb::DebuggerSP debugger_sp(shared_from_this());
lldb::SBDebugger debugger_sb(debugger_sp);
// This calls the bool lldb::PluginInitialize(lldb::SBDebugger debugger) function.
// TODO: mangle this differently for your system - on OSX, the first underscore needs to be removed and the second one stays
LLDBCommandPluginInit init_func = dynlib_sp->GetSymbol<LLDBCommandPluginInit>("_ZN4lldb16PluginInitializeENS_10SBDebuggerE");
if (!init_func)
@ -440,6 +441,7 @@ LoadPluginCallback
Error error;
static ConstString g_dylibext("dylib");
static ConstString g_solibext("so");
if (!baton)
return FileSpec::eEnumerateDirectoryResultQuit;
@ -457,8 +459,11 @@ LoadPluginCallback
FileSpec plugin_file_spec (file_spec);
plugin_file_spec.ResolvePath ();
if (plugin_file_spec.GetFileNameExtension() != g_dylibext)
if (plugin_file_spec.GetFileNameExtension() != g_dylibext &&
plugin_file_spec.GetFileNameExtension() != g_solibext)
{
return FileSpec::eEnumerateDirectoryResultNext;
}
Error plugin_load_error;
debugger->LoadPlugin (plugin_file_spec, plugin_load_error);

2
lldb/source/Core/PluginManager.cpp
View File

@ -75,7 +75,7 @@ SetPluginInfo (const FileSpec &plugin_file_spec, const PluginInfo &plugin_info)
{
Mutex::Locker locker (GetPluginMapMutex ());
PluginTerminateMap &plugin_map = GetPluginMap ();
assert (plugin_map.find (plugin_file_spec) != plugin_map.end());
assert (plugin_map.find (plugin_file_spec) == plugin_map.end());
plugin_map[plugin_file_spec] = plugin_info;
}

54
lldb/source/Host/common/Host.cpp
View File

@ -532,13 +532,13 @@ Host::ThreadCreated (const char *thread_name)
void
Host::Backtrace (Stream &strm, uint32_t max_frames)
{
// TODO: Is there a way to backtrace the current process on linux? Other systems?
// TODO: Is there a way to backtrace the current process on other systems?
}
size_t
Host::GetEnvironment (StringList &env)
{
// TODO: Is there a way to the host environment for this process on linux? Other systems?
// TODO: Is there a way to the host environment for this process on other systems?
return 0;
}
@ -880,7 +880,7 @@ Host::GetLLDBPath (PathType path_type, FileSpec &file_spec)
// To get paths related to LLDB we get the path to the executable that
// contains this function. On MacOSX this will be "LLDB.framework/.../LLDB",
// on linux this is assumed to be the "lldb" main executable. If LLDB on
// linux is actually in a shared library (lldb.so??) then this function will
// linux is actually in a shared library (liblldb.so) then this function will
// need to be modified to "do the right thing".
switch (path_type)
@ -1008,12 +1008,13 @@ Host::GetLLDBPath (PathType path_type, FileSpec &file_spec)
case ePathTypeLLDBSystemPlugins: // System plug-ins directory
{
#if defined (__APPLE__)
#if defined (__APPLE__) || defined(__linux__)
static ConstString g_lldb_system_plugin_dir;
static bool g_lldb_system_plugin_dir_located = false;
if (!g_lldb_system_plugin_dir_located)
{
g_lldb_system_plugin_dir_located = true;
#if defined (__APPLE__)
FileSpec lldb_file_spec;
if (GetLLDBPath (ePathTypeLLDBShlibDir, lldb_file_spec))
{
@ -1031,6 +1032,13 @@ Host::GetLLDBPath (PathType path_type, FileSpec &file_spec)
}
return false;
}
#elif defined (__linux__)
FileSpec lldb_file_spec("/usr/lib/lldb", true);
if (lldb_file_spec.Exists())
{
g_lldb_system_plugin_dir.SetCString(lldb_file_spec.GetPath().c_str());
}
#endif // __APPLE__ || __linux__
}
if (g_lldb_system_plugin_dir)
@ -1038,9 +1046,10 @@ Host::GetLLDBPath (PathType path_type, FileSpec &file_spec)
file_spec.GetDirectory() = g_lldb_system_plugin_dir;
return true;
}
#endif
// TODO: where would system LLDB plug-ins be located on linux? Other systems?
#else
// TODO: where would system LLDB plug-ins be located on other systems?
return false;
#endif
}
break;
@ -1060,8 +1069,39 @@ Host::GetLLDBPath (PathType path_type, FileSpec &file_spec)
}
file_spec.GetDirectory() = g_lldb_user_plugin_dir;
return file_spec.GetDirectory();
#elif defined (__linux__)
static ConstString g_lldb_user_plugin_dir;
if (!g_lldb_user_plugin_dir)
{
// XDG Base Directory Specification
// http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
// If XDG_DATA_HOME exists, use that, otherwise use ~/.local/share/lldb.
FileSpec lldb_file_spec;
const char *xdg_data_home = getenv("XDG_DATA_HOME");
if (xdg_data_home && xdg_data_home[0])
{
std::string user_plugin_dir (xdg_data_home);
user_plugin_dir += "/lldb";
lldb_file_spec.SetFile (user_plugin_dir.c_str(), true);
}
else
{
const char *home_dir = getenv("HOME");
if (home_dir && home_dir[0])
{
std::string user_plugin_dir (home_dir);
user_plugin_dir += "/.local/share/lldb";
lldb_file_spec.SetFile (user_plugin_dir.c_str(), true);
}
}
if (lldb_file_spec.Exists())
g_lldb_user_plugin_dir.SetCString(lldb_file_spec.GetPath().c_str());
}
file_spec.GetDirectory() = g_lldb_user_plugin_dir;
return file_spec.GetDirectory();
#endif
// TODO: where would user LLDB plug-ins be located on linux? Other systems?
// TODO: where would user LLDB plug-ins be located on other systems?
return false;
}
}

23
lldb/source/Host/linux/Host.cpp
View File

@ -14,6 +14,7 @@
#include <sys/stat.h>
#include <dirent.h>
#include <fcntl.h>
#include <execinfo.h>
// C++ Includes
// Other libraries and framework includes
@ -509,12 +510,28 @@ Host::GetThreadName (lldb::pid_t pid, lldb::tid_t tid)
void
Host::Backtrace (Stream &strm, uint32_t max_frames)
{
// TODO: Is there a way to backtrace the current process on linux?
if (max_frames > 0)
{
std::vector<void *> frame_buffer (max_frames, NULL);
int num_frames = ::backtrace (&frame_buffer[0], frame_buffer.size());
char** strs = ::backtrace_symbols (&frame_buffer[0], num_frames);
if (strs)
{
// Start at 1 to skip the "Host::Backtrace" frame
for (int i = 1; i < num_frames; ++i)
strm.Printf("%s\n", strs[i]);
::free (strs);
}
}
}
size_t
Host::GetEnvironment (StringList &env)
{
// TODO: Is there a way to the host environment for this process on linux?
return 0;
char **host_env = environ;
char *env_entry;
size_t i;
for (i=0; (env_entry = host_env[i]) != NULL; ++i)
env.AppendString(env_entry);
return i;
}

3
lldb/source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
View File

@ -911,7 +911,8 @@ ObjectFileELF::CreateSections(SectionList &unified_section_list)
// .debug_pubtypes – Lookup table for mapping type names to compilation units
// .debug_ranges – Address ranges used in DW_AT_ranges attributes
// .debug_str – String table used in .debug_info
// MISSING? .debug-index http://src.chromium.org/viewvc/chrome/trunk/src/build/gdb-add-index?pathrev=144644
// MISSING? .gnu_debugdata - "mini debuginfo / MiniDebugInfo" section, http://sourceware.org/gdb/onlinedocs/gdb/MiniDebugInfo.html
// MISSING? .debug-index - http://src.chromium.org/viewvc/chrome/trunk/src/build/gdb-add-index?pathrev=144644
// MISSING? .debug_types - Type descriptions from DWARF 4? See http://gcc.gnu.org/wiki/DwarfSeparateTypeInfo
else if (name == g_sect_name_dwarf_debug_abbrev) sect_type = eSectionTypeDWARFDebugAbbrev;
else if (name == g_sect_name_dwarf_debug_aranges) sect_type = eSectionTypeDWARFDebugAranges;