anton.kolesov updated this revision to Diff 232512.
anton.kolesov retitled this revision from "[lldb-vscode] Ensure that target
matches the executable file" to "[lldb] Set executable module when adding
modules to the Target".
anton.kolesov edited the summary of this revision.
anton.kolesov added a comment.
Reimplement the solution based on a comment from Greg.
Tested with testsuite on Linux for x64 - there are no changes in test results.
Also manually tested with a proprietary process plugin - currently it is not
possible to run existing testsuite with that plugin because it targets embedded
systems which has no `cwd`, `exit()` or environment.
I also attemted to test this against Windows hosts and targets. The change,
apparently, resolves that launch capability on Windows, however setting of
breakpoints doesn't work - it is only possible to stop application on entry,
and on resume it will run till the end. Among the existing lldb-vscode tests
some of them depend on <unistd.h> unavailable on windows, others fail because
of the breakpoints that don't work.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D70847/new/
https://reviews.llvm.org/D70847
Files:
lldb/source/Target/Target.cpp
Index: lldb/source/Target/Target.cpp
===================================================================
--- lldb/source/Target/Target.cpp
+++ lldb/source/Target/Target.cpp
@@ -2016,12 +2016,15 @@
// there wasn't an equivalent module in the list already, and if there was,
// let's remove it.
if (module_sp) {
+ bool isExecutable = false;
ObjectFile *objfile = module_sp->GetObjectFile();
if (objfile) {
switch (objfile->GetType()) {
+ case ObjectFile::eTypeExecutable: /// A normal executable
+ isExecutable = true;
+ LLVM_FALLTHROUGH;
case ObjectFile::eTypeCoreFile: /// A core file that has a checkpoint
of
/// a program's execution state
- case ObjectFile::eTypeExecutable: /// A normal executable
case ObjectFile::eTypeDynamicLinker: /// The platform's dynamic linker
/// executable
case ObjectFile::eTypeObjectFile: /// An intermediate object file
@@ -2084,6 +2087,16 @@
} else {
m_images.Append(module_sp, notify);
}
+
+ // Ensure that architecture of the Target matches that of the
+ // executable file. Otherwise Target might use a "default" platform
+ // that can't actually debug the executable. For example, if the Target
+ // is created and by default assumes that it should use "gdb-remote"
+ // process, however executable has an architecture that requires a
+ // different Process class - without explicitly set executable module
+ // Target would attempt to use "gdb-remote" created initially.
+ if (isExecutable)
+ SetExecutableModule(module_sp, eLoadDependentsNo);
} else
module_sp.reset();
}
Index: lldb/source/Target/Target.cpp
===================================================================
--- lldb/source/Target/Target.cpp
+++ lldb/source/Target/Target.cpp
@@ -2016,12 +2016,15 @@
// there wasn't an equivalent module in the list already, and if there was,
// let's remove it.
if (module_sp) {
+ bool isExecutable = false;
ObjectFile *objfile = module_sp->GetObjectFile();
if (objfile) {
switch (objfile->GetType()) {
+ case ObjectFile::eTypeExecutable: /// A normal executable
+ isExecutable = true;
+ LLVM_FALLTHROUGH;
case ObjectFile::eTypeCoreFile: /// A core file that has a checkpoint of
/// a program's execution state
- case ObjectFile::eTypeExecutable: /// A normal executable
case ObjectFile::eTypeDynamicLinker: /// The platform's dynamic linker
/// executable
case ObjectFile::eTypeObjectFile: /// An intermediate object file
@@ -2084,6 +2087,16 @@
} else {
m_images.Append(module_sp, notify);
}
+
+ // Ensure that architecture of the Target matches that of the
+ // executable file. Otherwise Target might use a "default" platform
+ // that can't actually debug the executable. For example, if the Target
+ // is created and by default assumes that it should use "gdb-remote"
+ // process, however executable has an architecture that requires a
+ // different Process class - without explicitly set executable module
+ // Target would attempt to use "gdb-remote" created initially.
+ if (isExecutable)
+ SetExecutableModule(module_sp, eLoadDependentsNo);
} else
module_sp.reset();
}
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