apolyakov created this revision.
apolyakov added reviewers: aprantl, clayborg, labath.
Herald added a subscriber: ki.stfu.
In this patch I suggest a way to deal with the problem started in
https://reviews.llvm.org/D47302 and use it to re-implement MI target-select
command. You are welcome to comment this patch, especially the new methods of
Target and SBTarget classes and the bash script(do we need to find a random
port or should we hardcode it?).
https://reviews.llvm.org/D49739
Files:
include/lldb/API/SBTarget.h
include/lldb/Target/Target.h
lit/lit.cfg
lit/tools/lldb-mi/target/inputs/main.c
lit/tools/lldb-mi/target/inputs/target-select-so-path.sh
lit/tools/lldb-mi/target/lit.local.cfg
lit/tools/lldb-mi/target/target-select-so-path.test
source/API/SBTarget.cpp
source/Target/Target.cpp
tools/lldb-mi/MICmdCmdTarget.cpp
Index: tools/lldb-mi/MICmdCmdTarget.cpp
===================================================================
--- tools/lldb-mi/MICmdCmdTarget.cpp
+++ tools/lldb-mi/MICmdCmdTarget.cpp
@@ -10,9 +10,8 @@
// Overview: CMICmdCmdTargetSelect implementation.
// Third Party Headers:
-#include "lldb/API/SBCommandInterpreter.h"
-#include "lldb/API/SBCommandReturnObject.h"
#include "lldb/API/SBStream.h"
+#include "lldb/API/SBError.h"
// In-house headers:
#include "MICmdArgValNumber.h"
@@ -52,7 +51,7 @@
// Return: None.
// Throws: None.
//--
-CMICmdCmdTargetSelect::~CMICmdCmdTargetSelect() {}
+CMICmdCmdTargetSelect::~CMICmdCmdTargetSelect() = default;
//++
//------------------------------------------------------------------------------------
@@ -93,51 +92,44 @@
CMICmnLLDBDebugSessionInfo &rSessionInfo(
CMICmnLLDBDebugSessionInfo::Instance());
+ lldb::SBTarget target = rSessionInfo.GetTarget();
- // Check we have a valid target
- // Note: target created via 'file-exec-and-symbols' command
- if (!rSessionInfo.GetTarget().IsValid()) {
+ // Check we have a valid target.
+ // Note: target created via 'file-exec-and-symbols' command.
+ if (!target.IsValid()) {
SetError(CMIUtilString::Format(MIRSRC(IDS_CMD_ERR_INVALID_TARGET_CURRENT),
m_cmdData.strMiCmd.c_str()));
return MIstatus::failure;
}
- // Verify that we are executing remotely
+ // Verify that we are executing remotely.
const CMIUtilString &rRemoteType(pArgType->GetValue());
if (rRemoteType != "remote") {
SetError(CMIUtilString::Format(MIRSRC(IDS_CMD_ERR_INVALID_TARGET_TYPE),
m_cmdData.strMiCmd.c_str(),
rRemoteType.c_str()));
return MIstatus::failure;
}
- // Create a URL pointing to the remote gdb stub
+ // Create a URL pointing to the remote gdb stub.
const CMIUtilString strUrl =
CMIUtilString::Format("connect://%s", pArgParameters->GetValue().c_str());
- // Ask LLDB to connect to the target port
- const char *pPlugin("gdb-remote");
lldb::SBError error;
- lldb::SBProcess process = rSessionInfo.GetTarget().ConnectRemote(
+ // Ask LLDB to connect to the target port.
+ const char *pPlugin("gdb-remote");
+ lldb::SBProcess process = target.ConnectRemote(
rSessionInfo.GetListener(), strUrl.c_str(), pPlugin, error);
- // Verify that we have managed to connect successfully
- lldb::SBStream errMsg;
- error.GetDescription(errMsg);
+ // Verify that we have managed to connect successfully.
if (!process.IsValid()) {
SetError(CMIUtilString::Format(MIRSRC(IDS_CMD_ERR_INVALID_TARGET_PLUGIN),
m_cmdData.strMiCmd.c_str(),
- errMsg.GetData()));
- return MIstatus::failure;
- }
- if (error.Fail()) {
- SetError(CMIUtilString::Format(MIRSRC(IDS_CMD_ERR_CONNECT_TO_TARGET),
- m_cmdData.strMiCmd.c_str(),
- errMsg.GetData()));
+ error.GetCString()));
return MIstatus::failure;
}
- // Set the environment path if we were given one
+ // Set the environment path if we were given one.
CMIUtilString strWkDir;
if (rSessionInfo.SharedDataRetrieve<CMIUtilString>(
rSessionInfo.m_constStrSharedDataKeyWkDir, strWkDir)) {
@@ -150,28 +142,13 @@
}
}
- // Set the shared object path if we were given one
+ // Set the shared object path if we were given one.
CMIUtilString strSolibPath;
if (rSessionInfo.SharedDataRetrieve<CMIUtilString>(
- rSessionInfo.m_constStrSharedDataSolibPath, strSolibPath)) {
- lldb::SBDebugger &rDbgr = rSessionInfo.GetDebugger();
- lldb::SBCommandInterpreter cmdIterpreter = rDbgr.GetCommandInterpreter();
-
- CMIUtilString strCmdString = CMIUtilString::Format(
- "target modules search-paths add . %s", strSolibPath.c_str());
-
- lldb::SBCommandReturnObject retObj;
- cmdIterpreter.HandleCommand(strCmdString.c_str(), retObj, false);
+ rSessionInfo.m_constStrSharedDataSolibPath, strSolibPath))
+ target.AppendImageSearchPath(".", strSolibPath.c_str(), error);
- if (!retObj.Succeeded()) {
- SetError(CMIUtilString::Format(MIRSRC(IDS_CMD_ERR_FNFAILED),
- m_cmdData.strMiCmd.c_str(),
- "target-select"));
- return MIstatus::failure;
- }
- }
-
- return MIstatus::success;
+ return HandleSBError(error);
}
//++
Index: source/Target/Target.cpp
===================================================================
--- source/Target/Target.cpp
+++ source/Target/Target.cpp
@@ -2052,6 +2052,11 @@
return m_image_search_paths;
}
+void Target::AppendImageSearchPath(const ConstString &from,
+ const ConstString &to) {
+ m_image_search_paths.Append(from, to, true);
+}
+
void Target::ImageSearchPathsChanged(const PathMappingList &path_list,
void *baton) {
Target *target = (Target *)baton;
Index: source/API/SBTarget.cpp
===================================================================
--- source/API/SBTarget.cpp
+++ source/API/SBTarget.cpp
@@ -1457,6 +1457,30 @@
return false;
}
+void SBTarget::AppendImageSearchPath(const char *from, const char *to) {
+ lldb::SBError error; // Ignored
+ AppendImageSearchPath(from, to, error);
+}
+
+void SBTarget::AppendImageSearchPath(const char *from, const char *to,
+ lldb::SBError &error) {
+ TargetSP target_sp(GetSP());
+ if (!target_sp) {
+ error.SetErrorStringWithFormat("invalid target "
+ "(SBTarget::%s) failed", __FUNCTION__);
+ return;
+ }
+ if (from[0] && to[0]) {
+ Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_API));
+ if (log)
+ log->Printf("SBTarget::%s: '%s' -> '%s'",
+ __FUNCTION__, from, to);
+ target_sp->AppendImageSearchPath(ConstString(from), ConstString(to));
+ } else
+ error.SetErrorStringWithFormat("<path-prefix> can't be empty "
+ "(SBTarget::%s) failed", __FUNCTION__);
+}
+
lldb::SBModule SBTarget::AddModule(const char *path, const char *triple,
const char *uuid_cstr) {
return AddModule(path, triple, uuid_cstr, NULL);
Index: lit/tools/lldb-mi/target/target-select-so-path.test
===================================================================
--- /dev/null
+++ lit/tools/lldb-mi/target/target-select-so-path.test
@@ -0,0 +1,24 @@
+# REQUIRES: nowindows
+#
+# RUN: %cc -o %t %p/inputs/main.c -g
+# RUN: %p/inputs/./target-select-so-path.sh "%debugserver" "%lldbmi %t" %s
+# CHECK: 0
+
+# Test that -target-select command can hook up a path
+# added by gdb-set solib-search-path.
+
+# Check that we have a valid target created via file-exec-and-symbols.
+# CHECK: ^done
+
+-interpreter-exec console "target modules search-paths list"
+# CHECK ^done
+
+-gdb-set solib-search-path /example/dir
+# CHECK: ^done
+
+-target-select remote localhost:$PORT
+# CHECK: ^connected
+
+-interpreter-exec console "target modules search-paths list"
+# CHECK: ~"[0] \".\" -> \"/example/dir\"\n"
+# CHECK-NEXT: ^done
Index: lit/tools/lldb-mi/target/lit.local.cfg
===================================================================
--- /dev/null
+++ lit/tools/lldb-mi/target/lit.local.cfg
@@ -0,0 +1 @@
+config.suffixes = ['.test']
Index: lit/tools/lldb-mi/target/inputs/target-select-so-path.sh
===================================================================
--- /dev/null
+++ lit/tools/lldb-mi/target/inputs/target-select-so-path.sh
@@ -0,0 +1,25 @@
+#!/bin/bash
+
+function get_random_unused_port {
+ local port=$(shuf -i 2000-65000 -n 1)
+ netstat -lat | grep $port > /dev/null
+ if [[ $? == 1 ]] ; then
+ echo $port
+ else
+ get_random_unused_port
+ fi
+}
+
+PORT=$(get_random_unused_port)
+DEBUGSERVER=$1
+LLDB_MI=$2
+FILE_TO_CHECK=$3
+
+$DEBUGSERVER :$PORT &
+
+# Replace substring $PORT in a lldb-mi input with the found
+# unused port.
+cat $FILE_TO_CHECK | sed --expression='s/$PORT/'$PORT'/g' | $LLDB_MI \
+| FileCheck $FILE_TO_CHECK
+
+exit $?
Index: lit/tools/lldb-mi/target/inputs/main.c
===================================================================
--- /dev/null
+++ lit/tools/lldb-mi/target/inputs/main.c
@@ -0,0 +1,4 @@
+int main(void) {
+ int x = 0;
+ return x;
+}
Index: lit/lit.cfg
===================================================================
--- lit/lit.cfg
+++ lit/lit.cfg
@@ -56,7 +56,10 @@
# Register substitutions
config.substitutions.append(('%python', config.python_executable))
-debugserver = lit.util.which('debugserver', lldb_tools_dir)
+if platform.system() in ['Darwin']:
+ debugserver = lit.util.which('debugserver', lldb_tools_dir)
+else:
+ debugserver = lit.util.which('lldb-server', lldb_tools_dir)
lldb = "%s -S %s/lit-lldb-init" % (lit.util.which('lldb', lldb_tools_dir),
config.test_source_root)
@@ -91,7 +94,10 @@
config.substitutions.append(('%lldb', lldb))
if debugserver is not None:
- config.substitutions.append(('%debugserver', debugserver))
+ if platform.system() in ['Darwin']:
+ config.substitutions.append(('%debugserver', debugserver))
+ else:
+ config.substitutions.append(('%debugserver', debugserver + ' gdbserver'))
for pattern in [r"\bFileCheck\b",
r"\blldb-test\b",
Index: include/lldb/Target/Target.h
===================================================================
--- include/lldb/Target/Target.h
+++ include/lldb/Target/Target.h
@@ -1000,6 +1000,9 @@
PathMappingList &GetImageSearchPathList();
+ void AppendImageSearchPath(const ConstString &from,
+ const ConstString &to);
+
TypeSystem *GetScratchTypeSystemForLanguage(Status *error,
lldb::LanguageType language,
bool create_on_demand = true);
Index: include/lldb/API/SBTarget.h
===================================================================
--- include/lldb/API/SBTarget.h
+++ include/lldb/API/SBTarget.h
@@ -272,6 +272,11 @@
lldb::SBFileSpec GetExecutable();
+ void AppendImageSearchPath(const char *from, const char *to);
+
+ void AppendImageSearchPath(const char *from, const char *to,
+ lldb::SBError &error);
+
bool AddModule(lldb::SBModule &module);
lldb::SBModule AddModule(const char *path, const char *triple,
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