diff options
| author | Eric Christopher <echristo@gmail.com> | 2013-02-05 07:31:55 +0000 |
|---|---|---|
| committer | Eric Christopher <echristo@gmail.com> | 2013-02-05 07:31:55 +0000 |
| commit | 208cc6f48975320da1a71cf7f7eff497f4f43b75 (patch) | |
| tree | 7b0ad2417f1ab4959fffded3c7eb3e0b8cdfd22e | |
| parent | ae510f3936f2510cebff86ea38536b30fdf2a30c (diff) | |
Add support for emitting a stub DW_AT_GNU_dwo_id as part of the
DWARF5 split dwarf proposal.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@174350 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/CodeGen/AsmPrinter/DwarfDebug.cpp | 8 | ||||
| -rw-r--r-- | test/DebugInfo/X86/fission-cu.ll | 5 |
2 files changed, 11 insertions, 2 deletions
diff --git a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp index 13ad353be2..6b19c5a751 100644 --- a/lib/CodeGen/AsmPrinter/DwarfDebug.cpp +++ b/lib/CodeGen/AsmPrinter/DwarfDebug.cpp @@ -685,6 +685,11 @@ CompileUnit *DwarfDebug::constructCompileUnit(const MDNode *N) { if (!FirstCU) FirstCU = NewCU; + + // This should be a unique identifier when we want to build .dwp files. + if (useSplitDwarf()) + NewCU->addUInt(Die, dwarf::DW_AT_GNU_dwo_id, dwarf::DW_FORM_data8, 0); + if (useSplitDwarf() && !SkeletonCU) SkeletonCU = constructSkeletonCU(N); @@ -2450,7 +2455,8 @@ CompileUnit *DwarfDebug::constructSkeletonCU(const MDNode *N) { StringRef FN = sys::path::filename(T); NewCU->addLocalString(Die, dwarf::DW_AT_GNU_dwo_name, FN); - // FIXME: We also need DW_AT_dwo_id. + // This should be a unique identifier when we want to build .dwp files. + NewCU->addUInt(Die, dwarf::DW_AT_GNU_dwo_id, dwarf::DW_FORM_data8, 0); // FIXME: The addr base should be relative for each compile unit, however, // this one is going to be 0 anyhow. diff --git a/test/DebugInfo/X86/fission-cu.ll b/test/DebugInfo/X86/fission-cu.ll index 853eb6c727..fd2fedd7a8 100644 --- a/test/DebugInfo/X86/fission-cu.ll +++ b/test/DebugInfo/X86/fission-cu.ll @@ -20,6 +20,7 @@ ; CHECK: .debug_info contents: ; CHECK: DW_TAG_compile_unit ; CHECK: DW_AT_GNU_dwo_name [DW_FORM_strp] ( .debug_str[0x00000000] = "baz.dwo") +; CHECK: DW_AT_GNU_dwo_id [DW_FORM_data8] (0x0000000000000000) ; CHECK: DW_AT_GNU_addr_base [DW_FORM_sec_offset] (0x00000000) ; CHECK: DW_AT_low_pc [DW_FORM_addr] (0x0000000000000000) ; CHECK: DW_AT_stmt_list [DW_FORM_sec_offset] (0x00000000) @@ -39,6 +40,7 @@ ; CHECK: DW_AT_low_pc DW_FORM_GNU_addr_index ; CHECK: DW_AT_stmt_list DW_FORM_data4 ; CHECK: DW_AT_comp_dir DW_FORM_GNU_str_index +; CHECK: DW_AT_GNU_dwo_id DW_FORM_data8 ; CHECK: [2] DW_TAG_base_type DW_CHILDREN_no ; CHECK: DW_AT_name DW_FORM_GNU_str_index @@ -60,11 +62,12 @@ ; CHECK: DW_AT_language [DW_FORM_data2] (0x000c) ; CHECK: DW_AT_name [DW_FORM_GNU_str_index] ( indexed (00000001) string = "baz.c") ; CHECK: DW_AT_low_pc [DW_FORM_GNU_addr_index] ( indexed (00000000) address = 0x0000000000000000) +; CHECK: DW_AT_GNU_dwo_id [DW_FORM_data8] (0x0000000000000000) ; CHECK: DW_TAG_base_type ; CHECK: DW_AT_name [DW_FORM_GNU_str_index] ( indexed (00000004) string = "int") ; CHECK: DW_TAG_variable ; CHECK: DW_AT_name [DW_FORM_GNU_str_index] ( indexed (00000003) string = "a") -; CHECK: DW_AT_type [DW_FORM_ref4] (cu + 0x0016 => {0x00000016}) +; CHECK: DW_AT_type [DW_FORM_ref4] (cu + 0x001e => {0x0000001e}) ; CHECK: DW_AT_external [DW_FORM_flag_present] (true) ; CHECK: DW_AT_decl_file [DW_FORM_data1] (0x01) ; CHECK: DW_AT_decl_line [DW_FORM_data1] (0x01) |