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[BinaryFormat] Add .debug_names support 

Summary:
This adds a definition of the .debug_names section and the new constants
(DW_IDX_???) which are used in it.

Reviewers: JDevlieghere, aprantl

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D42296

llvm-svn: 323084
This commit is contained in:
Pavel Labath 2018-01-22 09:41:36 +00:00
parent b0d49a604b
commit 44197df7a3
3 changed files with 40 additions and 9 deletions
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30
llvm/include/llvm/BinaryFormat/Dwarf.def
View File

@ -12,15 +12,15 @@
//===----------------------------------------------------------------------===//
// TODO: Add other DW-based macros.
#if !(defined HANDLE_DW_TAG || defined HANDLE_DW_AT || \
defined HANDLE_DW_FORM || defined HANDLE_DW_OP || \
defined HANDLE_DW_LANG || defined HANDLE_DW_ATE || \
defined HANDLE_DW_VIRTUALITY || defined HANDLE_DW_DEFAULTED || \
defined HANDLE_DW_CC || defined HANDLE_DW_LNS || \
defined HANDLE_DW_LNE || defined HANDLE_DW_LNCT || \
defined HANDLE_DW_MACRO || defined HANDLE_DW_RLE || \
defined HANDLE_DW_CFA || defined HANDLE_DW_APPLE_PROPERTY || \
defined HANDLE_DW_UT || defined HANDLE_DWARF_SECTION)
#if !( \
defined HANDLE_DW_TAG || defined HANDLE_DW_AT || defined HANDLE_DW_FORM || \
defined HANDLE_DW_OP || defined HANDLE_DW_LANG || defined HANDLE_DW_ATE || \
defined HANDLE_DW_VIRTUALITY || defined HANDLE_DW_DEFAULTED || \
defined HANDLE_DW_CC || defined HANDLE_DW_LNS || defined HANDLE_DW_LNE || \
defined HANDLE_DW_LNCT || defined HANDLE_DW_MACRO || \
defined HANDLE_DW_RLE || defined HANDLE_DW_CFA || \
defined HANDLE_DW_APPLE_PROPERTY || defined HANDLE_DW_UT || \
defined HANDLE_DWARF_SECTION || defined HANDLE_DW_IDX)
#error "Missing macro definition of HANDLE_DW*"
#endif
@ -96,6 +96,10 @@
#define HANDLE_DWARF_SECTION(ENUM_NAME, ELF_NAME, CMDLINE_NAME)
#endif
#ifndef HANDLE_DW_IDX
#define HANDLE_DW_IDX(ID, NAME)
#endif
HANDLE_DW_TAG(0x0000, null, 2, DWARF)
HANDLE_DW_TAG(0x0001, array_type, 2, DWARF)
HANDLE_DW_TAG(0x0002, class_type, 2, DWARF)
@ -839,6 +843,7 @@ HANDLE_DWARF_SECTION(DebugLine, ".debug_line", "debug-line")
HANDLE_DWARF_SECTION(DebugLoc, ".debug_loc", "debug-loc")
HANDLE_DWARF_SECTION(DebugFrame, ".debug_frame", "debug-frame")
HANDLE_DWARF_SECTION(DebugMacro, ".debug_macro", "debug-macro")
HANDLE_DWARF_SECTION(DebugNames, ".debug_names", "debug-names")
HANDLE_DWARF_SECTION(DebugRanges, ".debug_ranges", "debug-ranges")
HANDLE_DWARF_SECTION(DebugPubnames, ".debug_pubnames", "debug-pubnames")
HANDLE_DWARF_SECTION(DebugPubtypes, ".debug_pubtypes", "debug-pubtypes")
@ -855,6 +860,12 @@ HANDLE_DWARF_SECTION(AppleNamespaces, ".apple_namespaces", "apple-namespaces")
HANDLE_DWARF_SECTION(AppleObjC, ".apple_objc", "apple-objc")
HANDLE_DWARF_SECTION(GdbIndex, ".gdb_index", "gdb-index")
HANDLE_DW_IDX(0x01, compile_unit)
HANDLE_DW_IDX(0x02, type_unit)
HANDLE_DW_IDX(0x03, die_offset)
HANDLE_DW_IDX(0x04, parent)
HANDLE_DW_IDX(0x05, type_hash)
#undef HANDLE_DW_TAG
#undef HANDLE_DW_AT
@ -874,3 +885,4 @@ HANDLE_DWARF_SECTION(GdbIndex, ".gdb_index", "gdb-index")
#undef HANDLE_DW_APPLE_PROPERTY
#undef HANDLE_DW_UT
#undef HANDLE_DWARF_SECTION
#undef HANDLE_DW_IDX

8
llvm/include/llvm/BinaryFormat/Dwarf.h
View File

@ -325,6 +325,13 @@ enum UnitType : unsigned char {
DW_UT_hi_user = 0xff
};
enum Index {
#define HANDLE_DW_IDX(ID, NAME) DW_IDX_##NAME = ID,
#include "llvm/BinaryFormat/Dwarf.def"
DW_IDX_lo_user = 0x2000,
DW_IDX_hi_user = 0x3fff
};
inline bool isUnitType(uint8_t UnitType) {
switch (UnitType) {
case DW_UT_compile:
@ -420,6 +427,7 @@ StringRef UnitTypeString(unsigned);
StringRef AtomTypeString(unsigned Atom);
StringRef GDBIndexEntryKindString(GDBIndexEntryKind Kind);
StringRef GDBIndexEntryLinkageString(GDBIndexEntryLinkage Linkage);
StringRef IndexString(unsigned Idx);
/// @}
/// \defgroup DwarfConstantsParsing Dwarf constants parsing functions

11
llvm/lib/BinaryFormat/Dwarf.cpp
View File

@ -567,6 +567,17 @@ StringRef llvm::dwarf::AttributeValueString(uint16_t Attr, unsigned Val) {
return StringRef();
}
StringRef llvm::dwarf::IndexString(unsigned Idx) {
switch (Idx) {
default:
return StringRef();
#define HANDLE_DW_IDX(ID, NAME) \
case DW_IDX_##NAME: \
return "DW_IDX_" #NAME;
#include "llvm/BinaryFormat/Dwarf.def"
}
}
bool llvm::dwarf::isValidFormForVersion(Form F, unsigned Version,
bool ExtensionsOk) {
if (FormVendor(F) == DWARF_VENDOR_DWARF) {