https://github.com/Nerixyz created https://github.com/llvm/llvm-project/pull/169728
When a PDB is loaded through `target symbols add <pdb-path>`, its `m_objectfile_sp` is an `ObjectFilePDB` instead of `ObjectFilePECOFF` (the debugged module). In both the native and DIA plugin, some paths assumed that `m_objectfile_sp` is the debugged module. With this PR, they go through `m_objfile_sp->GetModule()->GetObjectFile()`. For the DIA plugin, this lead to an assertion failure (https://github.com/llvm/llvm-project/issues/169628#issuecomment-3582555277) and for both plugins, it meant that the symbol table wasn't loaded. >From 2ce6a13861b96842b2f5ae9f7c63913da524088a Mon Sep 17 00:00:00 2001 From: Nerixyz <[email protected]> Date: Wed, 26 Nov 2025 21:44:22 +0100 Subject: [PATCH] [LLDB][PDB] Access object file through module --- .../NativePDB/SymbolFileNativePDB.cpp | 3 +- .../Plugins/SymbolFile/PDB/SymbolFilePDB.cpp | 9 +++-- .../test/Shell/SymbolFile/PDB/add-symbols.cpp | 39 +++++++++++++++++++ 3 files changed, 47 insertions(+), 4 deletions(-) create mode 100644 lldb/test/Shell/SymbolFile/PDB/add-symbols.cpp diff --git a/lldb/source/Plugins/SymbolFile/NativePDB/SymbolFileNativePDB.cpp b/lldb/source/Plugins/SymbolFile/NativePDB/SymbolFileNativePDB.cpp index aaec1600dacff..40e783f9bad38 100644 --- a/lldb/source/Plugins/SymbolFile/NativePDB/SymbolFileNativePDB.cpp +++ b/lldb/source/Plugins/SymbolFile/NativePDB/SymbolFileNativePDB.cpp @@ -1126,7 +1126,8 @@ lldb::LanguageType SymbolFileNativePDB::ParseLanguage(CompileUnit &comp_unit) { } void SymbolFileNativePDB::AddSymbols(Symtab &symtab) { - auto *section_list = m_objfile_sp->GetSectionList(); + auto *section_list = + m_objfile_sp->GetModule()->GetObjectFile()->GetSectionList(); if (!section_list) return; diff --git a/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp b/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp index 0ccb1804bb13a..97c995fc9b22a 100644 --- a/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp +++ b/lldb/source/Plugins/SymbolFile/PDB/SymbolFilePDB.cpp @@ -287,8 +287,10 @@ uint32_t SymbolFilePDB::CalculateAbilities() { } void SymbolFilePDB::InitializeObject() { - lldb::addr_t obj_load_address = - m_objfile_sp->GetBaseAddress().GetFileAddress(); + lldb::addr_t obj_load_address = m_objfile_sp->GetModule() + ->GetObjectFile() + ->GetBaseAddress() + .GetFileAddress(); lldbassert(obj_load_address && obj_load_address != LLDB_INVALID_ADDRESS); m_session_up->setLoadAddress(obj_load_address); if (!m_global_scope_up) @@ -1479,7 +1481,8 @@ void SymbolFilePDB::AddSymbols(lldb_private::Symtab &symtab) { if (!results) return; - auto section_list = m_objfile_sp->GetSectionList(); + auto section_list = + m_objfile_sp->GetModule()->GetObjectFile()->GetSectionList(); if (!section_list) return; diff --git a/lldb/test/Shell/SymbolFile/PDB/add-symbols.cpp b/lldb/test/Shell/SymbolFile/PDB/add-symbols.cpp new file mode 100644 index 0000000000000..ef7690b1720a6 --- /dev/null +++ b/lldb/test/Shell/SymbolFile/PDB/add-symbols.cpp @@ -0,0 +1,39 @@ +// REQUIRES: lld, target-windows + +// Test that `target symbols add <pdb>` works. +// RUN: %build --compiler=clang-cl --nodefaultlib --output=%t.exe %s +// RUN: mv %t.pdb %t-renamed.pdb + +// RUN: env LLDB_USE_NATIVE_PDB_READER=0 %lldb \ +// RUN: -o "b main" \ +// RUN: -o "target symbols add %t-renamed.pdb" \ +// RUN: -o r \ +// RUN: -o "target variable a" \ +// RUN: -o "target modules dump symtab" \ +// RUN: -b %t.exe | FileCheck %s + +// RUN: env LLDB_USE_NATIVE_PDB_READER=1 %lldb \ +// RUN: -o "b main" \ +// RUN: -o "target symbols add %t-renamed.pdb" \ +// RUN: -o r \ +// RUN: -o "target variable a" \ +// RUN: -o "target modules dump symtab" \ +// RUN: -b %t.exe | FileCheck %s + +// CHECK: target create +// CHECK: (lldb) b main +// CHECK-NEXT: Breakpoint 1: no locations (pending). +// CHECK: (lldb) target symbols add +// CHECK: 1 location added to breakpoint 1 +// CHECK: (lldb) r +// CHECK: * thread #1, stop reason = breakpoint 1.1 +// CHECK: (lldb) target variable a +// CHECK-NEXT: (A) a = (x = 47) +// CHECK: (lldb) target modules dump symtab +// CHECK: [{{.*}} main + +struct A { + int x = 47; +}; +A a; +int main() {} _______________________________________________ lldb-commits mailing list [email protected] https://lists.llvm.org/cgi-bin/mailman/listinfo/lldb-commits
