[llvm] r314817 - [dwarfdump] Add -lookup option
Jonas Devlieghere via llvm-commits
llvm-commits at lists.llvm.org
Tue Oct 3 10:10:21 PDT 2017
Author: jdevlieghere
Date: Tue Oct 3 10:10:21 2017
New Revision: 314817
URL: http://llvm.org/viewvc/llvm-project?rev=314817&view=rev
Log:
[dwarfdump] Add -lookup option
Add the option to lookup an address in the debug information and print
out the file, function, block and line table details.
Differential revision: https://reviews.llvm.org/D38409
Added:
llvm/trunk/test/tools/llvm-dwarfdump/X86/lookup.s
Modified:
llvm/trunk/include/llvm/DebugInfo/DIContext.h
llvm/trunk/include/llvm/DebugInfo/DWARF/DWARFContext.h
llvm/trunk/include/llvm/DebugInfo/DWARF/DWARFUnit.h
llvm/trunk/lib/DebugInfo/DWARF/DWARFContext.cpp
llvm/trunk/lib/DebugInfo/DWARF/DWARFUnit.cpp
llvm/trunk/test/tools/llvm-dwarfdump/cmdline.test
llvm/trunk/tools/llvm-dwarfdump/llvm-dwarfdump.cpp
Modified: llvm/trunk/include/llvm/DebugInfo/DIContext.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/DebugInfo/DIContext.h?rev=314817&r1=314816&r2=314817&view=diff
==============================================================================
--- llvm/trunk/include/llvm/DebugInfo/DIContext.h (original)
+++ llvm/trunk/include/llvm/DebugInfo/DIContext.h Tue Oct 3 10:10:21 2017
@@ -17,6 +17,7 @@
#include "llvm/ADT/SmallVector.h"
#include "llvm/Object/ObjectFile.h"
+#include "llvm/Support/raw_ostream.h"
#include <cassert>
#include <cstdint>
#include <memory>
@@ -26,8 +27,6 @@
namespace llvm {
-class raw_ostream;
-
/// A format-neutral container for source line information.
struct DILineInfo {
std::string FileName;
@@ -46,15 +45,30 @@ struct DILineInfo {
FileName == RHS.FileName && FunctionName == RHS.FunctionName &&
StartLine == RHS.StartLine && Discriminator == RHS.Discriminator;
}
+
bool operator!=(const DILineInfo &RHS) const {
return !(*this == RHS);
}
+
bool operator<(const DILineInfo &RHS) const {
return std::tie(FileName, FunctionName, Line, Column, StartLine,
Discriminator) <
std::tie(RHS.FileName, RHS.FunctionName, RHS.Line, RHS.Column,
RHS.StartLine, RHS.Discriminator);
}
+
+ operator bool() const { return (*this) != DILineInfo(); }
+
+ void dump(raw_ostream &OS) {
+ OS << "Line info: ";
+ if (FileName != "<invalid>")
+ OS << "file '" << FileName << "', ";
+ if (FunctionName != "<invalid>")
+ OS << "function '" << FunctionName << "', ";
+ OS << "line " << Line << ", ";
+ OS << "column " << Column << ", ";
+ OS << "start line " << StartLine << '\n';
+ }
};
using DILineInfoTable = SmallVector<std::pair<uint64_t, DILineInfo>, 16>;
Modified: llvm/trunk/include/llvm/DebugInfo/DWARF/DWARFContext.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/DebugInfo/DWARF/DWARFContext.h?rev=314817&r1=314816&r2=314817&view=diff
==============================================================================
--- llvm/trunk/include/llvm/DebugInfo/DWARF/DWARFContext.h (original)
+++ llvm/trunk/include/llvm/DebugInfo/DWARF/DWARFContext.h Tue Oct 3 10:10:21 2017
@@ -257,6 +257,18 @@ public:
/// Get a pointer to a parsed line table corresponding to a compile unit.
const DWARFDebugLine::LineTable *getLineTableForUnit(DWARFUnit *cu);
+ /// Wraps the returned DIEs for a given address.
+ struct DIEsForAddress {
+ DWARFCompileUnit *CompileUnit = nullptr;
+ DWARFDie FunctionDIE;
+ DWARFDie BlockDIE;
+ operator bool() const { return CompileUnit != nullptr; }
+ };
+
+ /// Get the compilation unit, the function DIE and lexical block DIE for the
+ /// given address where applicable.
+ DIEsForAddress getDIEsForAddress(uint64_t Address);
+
DILineInfo getLineInfoForAddress(uint64_t Address,
DILineInfoSpecifier Specifier = DILineInfoSpecifier()) override;
DILineInfoTable getLineInfoForAddressRange(uint64_t Address, uint64_t Size,
Modified: llvm/trunk/include/llvm/DebugInfo/DWARF/DWARFUnit.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/DebugInfo/DWARF/DWARFUnit.h?rev=314817&r1=314816&r2=314817&view=diff
==============================================================================
--- llvm/trunk/include/llvm/DebugInfo/DWARF/DWARFUnit.h (original)
+++ llvm/trunk/include/llvm/DebugInfo/DWARF/DWARFUnit.h Tue Oct 3 10:10:21 2017
@@ -329,6 +329,11 @@ public:
void collectAddressRanges(DWARFAddressRangesVector &CURanges);
+ /// Returns subprogram DIE with address range encompassing the provided
+ /// address. The pointer is alive as long as parsed compile unit DIEs are not
+ /// cleared.
+ DWARFDie getSubroutineForAddress(uint64_t Address);
+
/// getInlinedChainForAddress - fetches inlined chain for a given address.
/// Returns empty chain if there is no subprogram containing address. The
/// chain is valid as long as parsed compile unit DIEs are not cleared.
@@ -411,11 +416,6 @@ private:
/// parseDWO - Parses .dwo file for current compile unit. Returns true if
/// it was actually constructed.
bool parseDWO();
-
- /// getSubroutineForAddress - Returns subprogram DIE with address range
- /// encompassing the provided address. The pointer is alive as long as parsed
- /// compile unit DIEs are not cleared.
- DWARFDie getSubroutineForAddress(uint64_t Address);
};
} // end namespace llvm
Modified: llvm/trunk/lib/DebugInfo/DWARF/DWARFContext.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/DebugInfo/DWARF/DWARFContext.cpp?rev=314817&r1=314816&r2=314817&view=diff
==============================================================================
--- llvm/trunk/lib/DebugInfo/DWARF/DWARFContext.cpp (original)
+++ llvm/trunk/lib/DebugInfo/DWARF/DWARFContext.cpp Tue Oct 3 10:10:21 2017
@@ -48,7 +48,6 @@
#include <cstdint>
#include <map>
#include <string>
-#include <tuple>
#include <utility>
#include <vector>
@@ -723,6 +722,35 @@ DWARFCompileUnit *DWARFContext::getCompi
return getCompileUnitForOffset(CUOffset);
}
+DWARFContext::DIEsForAddress DWARFContext::getDIEsForAddress(uint64_t Address) {
+ DIEsForAddress Result;
+
+ DWARFCompileUnit *CU = getCompileUnitForAddress(Address);
+ if (!CU)
+ return Result;
+
+ Result.CompileUnit = CU;
+ Result.FunctionDIE = CU->getSubroutineForAddress(Address);
+
+ std::vector<DWARFDie> Worklist;
+ Worklist.push_back(Result.FunctionDIE);
+ while (!Worklist.empty()) {
+ DWARFDie DIE = Worklist.back();
+ Worklist.pop_back();
+
+ if (DIE.getTag() == DW_TAG_lexical_block &&
+ DIE.addressRangeContainsAddress(Address)) {
+ Result.BlockDIE = DIE;
+ break;
+ }
+
+ for (auto Child : DIE)
+ Worklist.push_back(Child);
+ }
+
+ return Result;
+}
+
static bool getFunctionNameAndStartLineForAddress(DWARFCompileUnit *CU,
uint64_t Address,
FunctionNameKind Kind,
Modified: llvm/trunk/lib/DebugInfo/DWARF/DWARFUnit.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/DebugInfo/DWARF/DWARFUnit.cpp?rev=314817&r1=314816&r2=314817&view=diff
==============================================================================
--- llvm/trunk/lib/DebugInfo/DWARF/DWARFUnit.cpp (original)
+++ llvm/trunk/lib/DebugInfo/DWARF/DWARFUnit.cpp Tue Oct 3 10:10:21 2017
@@ -440,7 +440,7 @@ DWARFDie DWARFUnit::getSibling(const DWA
// NULL DIEs don't have siblings.
if (Die->getAbbreviationDeclarationPtr() == nullptr)
return DWARFDie();
-
+
// Find the next DIE whose depth is the same as the Die's depth.
for (size_t I = getDIEIndex(Die) + 1, EndIdx = DieArray.size(); I < EndIdx;
++I) {
Added: llvm/trunk/test/tools/llvm-dwarfdump/X86/lookup.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-dwarfdump/X86/lookup.s?rev=314817&view=auto
==============================================================================
--- llvm/trunk/test/tools/llvm-dwarfdump/X86/lookup.s (added)
+++ llvm/trunk/test/tools/llvm-dwarfdump/X86/lookup.s Tue Oct 3 10:10:21 2017
@@ -0,0 +1,285 @@
+# RUN: llvm-mc %s -filetype obj -triple x86_64-apple-darwin -o - \
+# RUN: | llvm-dwarfdump -lookup=0x6a6f6e6173 - | \
+# RUN: FileCheck %s --check-prefix=EMPTY --allow-empty
+# EMPTY: {{^$}}
+
+# RUN: llvm-mc %s -filetype obj -triple x86_64-apple-darwin -o - \
+# RUN: | llvm-dwarfdump -lookup=0x4 - | \
+# RUN: FileCheck %s -check-prefixes=CHECK,LEX,A
+
+# RUN: llvm-mc %s -filetype obj -triple x86_64-apple-darwin -o - \
+# RUN: | llvm-dwarfdump -lookup=0xb - | \
+# RUN: FileCheck %s -check-prefixes=CHECK,LEX,B
+
+# RUN: llvm-mc %s -filetype obj -triple x86_64-apple-darwin -o - \
+# RUN: | llvm-dwarfdump -lookup=0x14 - | \
+# RUN: FileCheck %s -check-prefixes=CHECK,C
+
+# CHECK: Compile Unit: length = 0x00000060 version = 0x0004 abbr_offset = 0x0000 addr_size = 0x08 (next unit at 0x00000064)
+
+# CHECK: DW_TAG_compile_unit
+# CHECK: DW_AT_name ("foo.c")
+# CHECK: DW_AT_stmt_list (0x00000000)
+# CHECK: DW_AT_low_pc (0x0000000000000000)
+# CHECK: DW_AT_high_pc (0x00000016)
+
+# CHECK: DW_TAG_subprogram
+# CHECK: DW_AT_low_pc (0x0000000000000000)
+# CHECK: DW_AT_high_pc (0x00000016)
+# CHECK: DW_AT_name ("foo")
+
+# LEX: DW_TAG_lexical_block
+# LEX: DW_AT_low_pc (0x0000000000000004)
+# LEX: DW_AT_high_pc (0x00000010)
+
+# A: Line info: file 'foo.c', line 3, column 9, start line 1
+# B: Line info: file 'foo.c', line 4, column 6, start line 1
+# C: Line info: file 'foo.c', line 6, column 1, start line 1
+
+ .section __TEXT,__text,regular,pure_instructions
+ .macosx_version_min 10, 13
+ .globl _foo ## -- Begin function foo
+ .p2align 4, 0x90
+_foo: ## @foo
+Lfunc_begin0:
+ .file 1 "foo.c"
+ .loc 1 1 0 ## foo.c:1:0
+ .cfi_startproc
+## BB#0: ## %entry
+ pushq %rbp
+Lcfi0:
+ .cfi_def_cfa_offset 16
+Lcfi1:
+ .cfi_offset %rbp, -16
+ movq %rsp, %rbp
+Lcfi2:
+ .cfi_def_cfa_register %rbp
+Ltmp0:
+ .loc 1 3 9 prologue_end ## foo.c:3:9
+ movl $1, -4(%rbp)
+ .loc 1 4 6 ## foo.c:4:6
+ movl -4(%rbp), %eax
+ addl $1, %eax
+ movl %eax, -4(%rbp)
+Ltmp1:
+ .loc 1 6 1 ## foo.c:6:1
+ popq %rbp
+ retq
+Ltmp2:
+Lfunc_end0:
+ .cfi_endproc
+ ## -- End function
+ .section __DWARF,__debug_str,regular,debug
+Linfo_string:
+ .asciz "clang version 6.0.0 (trunk 314509) (llvm/trunk 314517)" ## string offset=0
+ .asciz "foo.c" ## string offset=55
+ .asciz "/private/tmp" ## string offset=61
+ .asciz "foo" ## string offset=74
+ .asciz "i" ## string offset=78
+ .asciz "int" ## string offset=80
+ .section __DWARF,__debug_abbrev,regular,debug
+Lsection_abbrev:
+ .byte 1 ## Abbreviation Code
+ .byte 17 ## DW_TAG_compile_unit
+ .byte 1 ## DW_CHILDREN_yes
+ .byte 37 ## DW_AT_producer
+ .byte 14 ## DW_FORM_strp
+ .byte 19 ## DW_AT_language
+ .byte 5 ## DW_FORM_data2
+ .byte 3 ## DW_AT_name
+ .byte 14 ## DW_FORM_strp
+ .byte 16 ## DW_AT_stmt_list
+ .byte 23 ## DW_FORM_sec_offset
+ .byte 27 ## DW_AT_comp_dir
+ .byte 14 ## DW_FORM_strp
+ .byte 17 ## DW_AT_low_pc
+ .byte 1 ## DW_FORM_addr
+ .byte 18 ## DW_AT_high_pc
+ .byte 6 ## DW_FORM_data4
+ .byte 0 ## EOM(1)
+ .byte 0 ## EOM(2)
+ .byte 2 ## Abbreviation Code
+ .byte 46 ## DW_TAG_subprogram
+ .byte 1 ## DW_CHILDREN_yes
+ .byte 17 ## DW_AT_low_pc
+ .byte 1 ## DW_FORM_addr
+ .byte 18 ## DW_AT_high_pc
+ .byte 6 ## DW_FORM_data4
+ .byte 64 ## DW_AT_frame_base
+ .byte 24 ## DW_FORM_exprloc
+ .byte 3 ## DW_AT_name
+ .byte 14 ## DW_FORM_strp
+ .byte 58 ## DW_AT_decl_file
+ .byte 11 ## DW_FORM_data1
+ .byte 59 ## DW_AT_decl_line
+ .byte 11 ## DW_FORM_data1
+ .byte 63 ## DW_AT_external
+ .byte 25 ## DW_FORM_flag_present
+ .byte 0 ## EOM(1)
+ .byte 0 ## EOM(2)
+ .byte 3 ## Abbreviation Code
+ .byte 11 ## DW_TAG_lexical_block
+ .byte 1 ## DW_CHILDREN_yes
+ .byte 17 ## DW_AT_low_pc
+ .byte 1 ## DW_FORM_addr
+ .byte 18 ## DW_AT_high_pc
+ .byte 6 ## DW_FORM_data4
+ .byte 0 ## EOM(1)
+ .byte 0 ## EOM(2)
+ .byte 4 ## Abbreviation Code
+ .byte 52 ## DW_TAG_variable
+ .byte 0 ## DW_CHILDREN_no
+ .byte 2 ## DW_AT_location
+ .byte 24 ## DW_FORM_exprloc
+ .byte 3 ## DW_AT_name
+ .byte 14 ## DW_FORM_strp
+ .byte 58 ## DW_AT_decl_file
+ .byte 11 ## DW_FORM_data1
+ .byte 59 ## DW_AT_decl_line
+ .byte 11 ## DW_FORM_data1
+ .byte 73 ## DW_AT_type
+ .byte 19 ## DW_FORM_ref4
+ .byte 0 ## EOM(1)
+ .byte 0 ## EOM(2)
+ .byte 5 ## Abbreviation Code
+ .byte 36 ## DW_TAG_base_type
+ .byte 0 ## DW_CHILDREN_no
+ .byte 3 ## DW_AT_name
+ .byte 14 ## DW_FORM_strp
+ .byte 62 ## DW_AT_encoding
+ .byte 11 ## DW_FORM_data1
+ .byte 11 ## DW_AT_byte_size
+ .byte 11 ## DW_FORM_data1
+ .byte 0 ## EOM(1)
+ .byte 0 ## EOM(2)
+ .byte 0 ## EOM(3)
+ .section __DWARF,__debug_info,regular,debug
+Lsection_info:
+Lcu_begin0:
+ .long 96 ## Length of Unit
+ .short 4 ## DWARF version number
+Lset0 = Lsection_abbrev-Lsection_abbrev ## Offset Into Abbrev. Section
+ .long Lset0
+ .byte 8 ## Address Size (in bytes)
+ .byte 1 ## Abbrev [1] 0xb:0x59 DW_TAG_compile_unit
+ .long 0 ## DW_AT_producer
+ .short 12 ## DW_AT_language
+ .long 55 ## DW_AT_name
+Lset1 = Lline_table_start0-Lsection_line ## DW_AT_stmt_list
+ .long Lset1
+ .long 61 ## DW_AT_comp_dir
+ .quad Lfunc_begin0 ## DW_AT_low_pc
+Lset2 = Lfunc_end0-Lfunc_begin0 ## DW_AT_high_pc
+ .long Lset2
+ .byte 2 ## Abbrev [2] 0x2a:0x32 DW_TAG_subprogram
+ .quad Lfunc_begin0 ## DW_AT_low_pc
+Lset3 = Lfunc_end0-Lfunc_begin0 ## DW_AT_high_pc
+ .long Lset3
+ .byte 1 ## DW_AT_frame_base
+ .byte 86
+ .long 74 ## DW_AT_name
+ .byte 1 ## DW_AT_decl_file
+ .byte 1 ## DW_AT_decl_line
+ ## DW_AT_external
+ .byte 3 ## Abbrev [3] 0x3f:0x1c DW_TAG_lexical_block
+ .quad Ltmp0 ## DW_AT_low_pc
+Lset4 = Ltmp1-Ltmp0 ## DW_AT_high_pc
+ .long Lset4
+ .byte 4 ## Abbrev [4] 0x4c:0xe DW_TAG_variable
+ .byte 2 ## DW_AT_location
+ .byte 145
+ .byte 124
+ .long 78 ## DW_AT_name
+ .byte 1 ## DW_AT_decl_file
+ .byte 3 ## DW_AT_decl_line
+ .long 92 ## DW_AT_type
+ .byte 0 ## End Of Children Mark
+ .byte 0 ## End Of Children Mark
+ .byte 5 ## Abbrev [5] 0x5c:0x7 DW_TAG_base_type
+ .long 80 ## DW_AT_name
+ .byte 5 ## DW_AT_encoding
+ .byte 4 ## DW_AT_byte_size
+ .byte 0 ## End Of Children Mark
+ .section __DWARF,__debug_ranges,regular,debug
+Ldebug_range:
+ .section __DWARF,__debug_macinfo,regular,debug
+Ldebug_macinfo:
+Lcu_macro_begin0:
+ .byte 0 ## End Of Macro List Mark
+ .section __DWARF,__apple_names,regular,debug
+Lnames_begin:
+ .long 1212240712 ## Header Magic
+ .short 1 ## Header Version
+ .short 0 ## Header Hash Function
+ .long 1 ## Header Bucket Count
+ .long 1 ## Header Hash Count
+ .long 12 ## Header Data Length
+ .long 0 ## HeaderData Die Offset Base
+ .long 1 ## HeaderData Atom Count
+ .short 1 ## DW_ATOM_die_offset
+ .short 6 ## DW_FORM_data4
+ .long 0 ## Bucket 0
+ .long 193491849 ## Hash in Bucket 0
+ .long LNames0-Lnames_begin ## Offset in Bucket 0
+LNames0:
+ .long 74 ## foo
+ .long 1 ## Num DIEs
+ .long 42
+ .long 0
+ .section __DWARF,__apple_objc,regular,debug
+Lobjc_begin:
+ .long 1212240712 ## Header Magic
+ .short 1 ## Header Version
+ .short 0 ## Header Hash Function
+ .long 1 ## Header Bucket Count
+ .long 0 ## Header Hash Count
+ .long 12 ## Header Data Length
+ .long 0 ## HeaderData Die Offset Base
+ .long 1 ## HeaderData Atom Count
+ .short 1 ## DW_ATOM_die_offset
+ .short 6 ## DW_FORM_data4
+ .long -1 ## Bucket 0
+ .section __DWARF,__apple_namespac,regular,debug
+Lnamespac_begin:
+ .long 1212240712 ## Header Magic
+ .short 1 ## Header Version
+ .short 0 ## Header Hash Function
+ .long 1 ## Header Bucket Count
+ .long 0 ## Header Hash Count
+ .long 12 ## Header Data Length
+ .long 0 ## HeaderData Die Offset Base
+ .long 1 ## HeaderData Atom Count
+ .short 1 ## DW_ATOM_die_offset
+ .short 6 ## DW_FORM_data4
+ .long -1 ## Bucket 0
+ .section __DWARF,__apple_types,regular,debug
+Ltypes_begin:
+ .long 1212240712 ## Header Magic
+ .short 1 ## Header Version
+ .short 0 ## Header Hash Function
+ .long 1 ## Header Bucket Count
+ .long 1 ## Header Hash Count
+ .long 20 ## Header Data Length
+ .long 0 ## HeaderData Die Offset Base
+ .long 3 ## HeaderData Atom Count
+ .short 1 ## DW_ATOM_die_offset
+ .short 6 ## DW_FORM_data4
+ .short 3 ## DW_ATOM_die_tag
+ .short 5 ## DW_FORM_data2
+ .short 4 ## DW_ATOM_type_flags
+ .short 11 ## DW_FORM_data1
+ .long 0 ## Bucket 0
+ .long 193495088 ## Hash in Bucket 0
+ .long Ltypes0-Ltypes_begin ## Offset in Bucket 0
+Ltypes0:
+ .long 80 ## int
+ .long 1 ## Num DIEs
+ .long 92
+ .short 36
+ .byte 0
+ .long 0
+
+.subsections_via_symbols
+ .section __DWARF,__debug_line,regular,debug
+Lsection_line:
+Lline_table_start0:
Modified: llvm/trunk/test/tools/llvm-dwarfdump/cmdline.test
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-dwarfdump/cmdline.test?rev=314817&r1=314816&r2=314817&view=diff
==============================================================================
--- llvm/trunk/test/tools/llvm-dwarfdump/cmdline.test (original)
+++ llvm/trunk/test/tools/llvm-dwarfdump/cmdline.test Tue Oct 3 10:10:21 2017
@@ -8,6 +8,7 @@ HELP: -eh-frame
HELP: Specific Options
HELP: -find
HELP: -ignore-case
+HELP: -lookup=<address>
HELP: -name
HELP: -recurse-depth=<N>
HELP: -show-children
Modified: llvm/trunk/tools/llvm-dwarfdump/llvm-dwarfdump.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/tools/llvm-dwarfdump/llvm-dwarfdump.cpp?rev=314817&r1=314816&r2=314817&view=diff
==============================================================================
--- llvm/trunk/tools/llvm-dwarfdump/llvm-dwarfdump.cpp (original)
+++ llvm/trunk/tools/llvm-dwarfdump/llvm-dwarfdump.cpp Tue Oct 3 10:10:21 2017
@@ -155,13 +155,17 @@ static list<std::string>
"attribute) matches the exact text in <name>."),
value_desc("name"), cat(DwarfDumpCategory));
static alias NameAlias("n", desc("Alias for -name"), aliasopt(Name));
+static opt<uint64_t>
+ Lookup("lookup",
+ desc("Lookup <address> in the debug information and print out any"
+ "available file, function, block and line table details."),
+ value_desc("address"), cat(DwarfDumpCategory));
static opt<std::string>
OutputFilename("out-file", cl::init(""),
- cl::desc("Redirect output to the specified file"),
- cl::value_desc("filename"));
+ cl::desc("Redirect output to <filename>"),
+ cl::value_desc("filename"), cat(DwarfDumpCategory));
static alias OutputFilenameAlias("o", desc("Alias for -out-file"),
- aliasopt(OutputFilename),
- cat(DwarfDumpCategory));
+ aliasopt(OutputFilename));
static opt<bool>
ShowChildren("show-children",
desc("Show a debug info entry's children when selectively "
@@ -277,17 +281,44 @@ static void filterByName(const StringSet
Die.dump(OS, 0, getDumpOpts());
}
}
+
+}
+
+/// Handle the --lookup option and dump the DIEs and line info for the given
+/// address.
+static bool lookup(DWARFContext &DICtx, uint64_t Address, raw_ostream &OS) {
+ auto DIEsForAddr = DICtx.getDIEsForAddress(Lookup);
+
+ if (!DIEsForAddr)
+ return false;
+
+ DIDumpOptions DumpOpts = getDumpOpts();
+ DumpOpts.RecurseDepth = 0;
+ DIEsForAddr.CompileUnit->dump(OS, DumpOpts);
+ if (DIEsForAddr.FunctionDIE) {
+ DIEsForAddr.FunctionDIE.dump(OS, 2, DumpOpts);
+ if (DIEsForAddr.BlockDIE)
+ DIEsForAddr.BlockDIE.dump(OS, 4, DumpOpts);
+ }
+
+ if (DILineInfo LineInfo = DICtx.getLineInfoForAddress(Lookup))
+ LineInfo.dump(OS);
+
+ return true;
}
static bool dumpObjectFile(ObjectFile &Obj, DWARFContext &DICtx, Twine Filename,
raw_ostream &OS) {
logAllUnhandledErrors(DICtx.loadRegisterInfo(Obj), errs(),
Filename.str() + ": ");
-
// The UUID dump already contains all the same information.
if (!(DumpType & DIDT_UUID) || DumpType == DIDT_All)
OS << Filename << ":\tfile format " << Obj.getFileFormatName() << '\n';
+ // Handle the --lookup option.
+ if (Lookup)
+ return lookup(DICtx, Lookup, OS);
+
// Handle the --name option.
if (!Name.empty()) {
StringSet<> Names;
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