lemo created this revision.
lemo added reviewers: labath, clayborg.
lemo added a project: LLDB.
Herald added subscribers: JDevlieghere, arichardson, aprantl, emaste.
Herald added a reviewer: espindola.
This change improves the logging for the lldb.module category to note a few
interesting cases:
1. Local object file found, but specs not matching
2. Local object file not found, using a placeholder module
The logging for failing to load compressed dwarf symbols is also improved.
Repository:
rLLDB LLDB
https://reviews.llvm.org/D50274
Files:
source/Core/Module.cpp
source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
source/Plugins/Process/minidump/ProcessMinidump.cpp
source/Target/Process.cpp
Index: source/Target/Process.cpp
===================================================================
--- source/Target/Process.cpp
+++ source/Target/Process.cpp
@@ -5842,7 +5842,7 @@
// that loaded.
// Iterate over a copy of this language runtime list in case the language
- // runtime ModulesDidLoad somehow causes the language riuntime to be
+ // runtime ModulesDidLoad somehow causes the language runtime to be
// unloaded.
LanguageRuntimeCollection language_runtimes(m_language_runtimes);
for (const auto &pair : language_runtimes) {
@@ -6095,15 +6095,15 @@
// For each StructuredDataPlugin, if the plugin handles any of the types in
// the supported_type_names, map that type name to that plugin. Stop when
// we've consumed all the type names.
- // FIXME: should we return an error if there are type names nobody
+ // FIXME: should we return an error if there are type names nobody
// supports?
for (uint32_t plugin_index = 0; !const_type_names.empty(); plugin_index++) {
auto create_instance =
PluginManager::GetStructuredDataPluginCreateCallbackAtIndex(
plugin_index);
if (!create_instance)
break;
-
+
// Create the plugin.
StructuredDataPluginSP plugin_sp = (*create_instance)(*this);
if (!plugin_sp) {
Index: source/Plugins/Process/minidump/ProcessMinidump.cpp
===================================================================
--- source/Plugins/Process/minidump/ProcessMinidump.cpp
+++ source/Plugins/Process/minidump/ProcessMinidump.cpp
@@ -357,6 +357,12 @@
// This enables most LLDB functionality involving address-to-module
// translations (ex. identifing the module for a stack frame PC) and
// modules/sections commands (ex. target modules list, ...)
+ if (log) {
+ log->Printf("Unable to locate the matching object file, creating a "
+ "placeholder module for: %s",
+ name.getValue().c_str());
+ }
+
auto placeholder_module =
std::make_shared<PlaceholderModule>(module_spec);
placeholder_module->CreateImageSection(module, GetTarget());
Index: source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
===================================================================
--- source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
+++ source/Plugins/ObjectFile/ELF/ObjectFileELF.cpp
@@ -1390,7 +1390,7 @@
arch_spec.GetTriple().getOS() == llvm::Triple::OSType::UnknownOS)
// In case of MIPSR6, the LLDB_NT_OWNER_GNU note is missing for some
// cases (e.g. compile with -nostdlib) Hence set OS to Linux
- arch_spec.GetTriple().setOS(llvm::Triple::OSType::Linux);
+ arch_spec.GetTriple().setOS(llvm::Triple::OSType::Linux);
}
}
@@ -1494,7 +1494,7 @@
const uint32_t sub_type = subTypeFromElfHeader(header);
arch_spec.SetArchitecture(eArchTypeELF, header.e_machine, sub_type,
header.e_ident[EI_OSABI]);
-
+
// Validate if it is ok to remove GetOsFromOSABI. Note, that now the OS is
// determined based on EI_OSABI flag and the info extracted from ELF notes
// (see RefineModuleDetailsFromNote). However in some cases that still
@@ -3397,19 +3397,20 @@
size_t(section_data.GetByteSize())},
GetByteOrder() == eByteOrderLittle, GetAddressByteSize() == 8);
if (!Decompressor) {
- LLDB_LOG_ERROR(log, Decompressor.takeError(),
- "Unable to initialize decompressor for section {0}",
- section->GetName());
- return result;
+ GetModule()->ReportWarning(
+ "Unable to initialize decompressor for section '%s'",
+ section->GetName().GetCString());
+ return 0;
}
auto buffer_sp =
std::make_shared<DataBufferHeap>(Decompressor->getDecompressedSize(), 0);
if (auto Error = Decompressor->decompress(
{reinterpret_cast<char *>(buffer_sp->GetBytes()),
size_t(buffer_sp->GetByteSize())})) {
- LLDB_LOG_ERROR(log, std::move(Error), "Decompression of section {0} failed",
- section->GetName());
- return result;
+ GetModule()->ReportWarning(
+ "Decompression of section '%s' failed",
+ section->GetName().GetCString());
+ return 0;
}
section_data.SetData(buffer_sp);
return buffer_sp->GetByteSize();
Index: source/Core/Module.cpp
===================================================================
--- source/Core/Module.cpp
+++ source/Core/Module.cpp
@@ -162,9 +162,13 @@
// fill any ivars in so we don't accidentally grab the wrong file later since
// they don't match...
ModuleSpec matching_module_spec;
- if (modules_specs.FindMatchingModuleSpec(module_spec, matching_module_spec) ==
- 0)
+ if (!modules_specs.FindMatchingModuleSpec(module_spec,
+ matching_module_spec)) {
+ if (log) {
+ log->Printf("Found local object file but the specs didn't match");
+ }
return;
+ }
if (module_spec.GetFileSpec())
m_mod_time = FileSystem::GetModificationTime(module_spec.GetFileSpec());
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