[llvm] r218246 - [dwarfdump] Dump full filenames as DW_AT_(decl|call)_file attribute values

Aaron Ballman aaron at aaronballman.com
Mon Sep 22 09:23:03 PDT 2014


On Mon, Sep 22, 2014 at 12:21 PM, Frédéric Riss <friss at apple.com> wrote:
>
> On 22 Sep 2014, at 17:49, Aaron Ballman <aaron at aaronballman.com> wrote:
>
> This commit is failing tests on Windows:
> http://bb.pgr.jp/builders/ninja-clang-i686-msc17-R/builds/10591
>
>
>
> Thanks for the report. Is it normal that I didn’t get a mail from the bot
> notifying me of the failure?

The bots usually shoot out an email (unless there are repeated
failures between builds), so I would have expected this one to send
out an email.

>
> It seems this is another case where our path separators are getting
> mixed incorrectly. When I dump the debug info with paths, I am
> getting:
>
> DW_AT_decl_file [DW_FORM_data1]
> ("/work/llvm/vanilla/test/DebugInfo\test.c")
>
> I know nothing about DWARF debug info, but that's not a valid path on
> Windows, and likely isn't what you'd want on a POSIX system either.
>
>
> Well, it’s true that the path isn’t correct in either system, but that what
> you get when you dump the debug information of a POSIX generated test on
> windows. This is not without precedent, at least the symboliser tests have
> regexs to cope with this. I’ll commit a fix for the test shortly, and try to
> monitor the bot.

Thank you!

~Aaron

>
> Thanks!
> Fred
>
> ~Aaron
>
> On Mon, Sep 22, 2014 at 8:36 AM, Frederic Riss <friss at apple.com> wrote:
>
> Author: friss
> Date: Mon Sep 22 07:36:04 2014
> New Revision: 218246
>
> URL: http://llvm.org/viewvc/llvm-project?rev=218246&view=rev
> Log:
> [dwarfdump] Dump full filenames as DW_AT_(decl|call)_file attribute values
>
> Reviewers: dblaikie samsonov
>
> Subscribers: llvm-commits
>
> Differential Revision: http://reviews.llvm.org/D5192
>
> Modified:
>    llvm/trunk/lib/DebugInfo/DWARFDebugInfoEntry.cpp
>    llvm/trunk/lib/DebugInfo/DWARFDebugInfoEntry.h
>    llvm/trunk/test/DebugInfo/X86/2011-09-26-GlobalVarContext.ll
>    llvm/trunk/test/DebugInfo/namespace.ll
>    llvm/trunk/test/MC/MachO/gen-dwarf.s
>
> Modified: llvm/trunk/lib/DebugInfo/DWARFDebugInfoEntry.cpp
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/DebugInfo/DWARFDebugInfoEntry.cpp?rev=218246&r1=218245&r2=218246&view=diff
> ==============================================================================
> --- llvm/trunk/lib/DebugInfo/DWARFDebugInfoEntry.cpp (original)
> +++ llvm/trunk/lib/DebugInfo/DWARFDebugInfoEntry.cpp Mon Sep 22 07:36:04
> 2014
> @@ -31,7 +31,7 @@ static const DWARFUnit *findUnitAndExtra
>   return (Unit && DIE.extractFast(Unit, Offset)) ? Unit : nullptr;
> }
>
> -void DWARFDebugInfoEntryMinimal::dump(raw_ostream &OS, const DWARFUnit *u,
> +void DWARFDebugInfoEntryMinimal::dump(raw_ostream &OS, DWARFUnit *u,
>                                       unsigned recurseDepth,
>                                       unsigned indent) const {
>   DataExtractor debug_info_data = u->getDebugInfoExtractor();
> @@ -74,7 +74,7 @@ void DWARFDebugInfoEntryMinimal::dump(ra
> }
>
> void DWARFDebugInfoEntryMinimal::dumpAttribute(raw_ostream &OS,
> -                                               const DWARFUnit *u,
> +                                               DWARFUnit *u,
>                                                uint32_t *offset_ptr,
>                                                uint16_t attr, uint16_t form,
>                                                unsigned indent) const {
> @@ -99,7 +99,17 @@ void DWARFDebugInfoEntryMinimal::dumpAtt
>   OS << "\t(";
>
>   const char *Name = nullptr;
> -  if (Optional<uint64_t> Val = formValue.getAsUnsignedConstant())
> +  std::string File;
> +  if (attr == DW_AT_decl_file || attr == DW_AT_call_file) {
> +    if (const auto *LT = u->getContext().getLineTableForUnit(u))
> +      if (LT->getFileNameByIndex(
> +             formValue.getAsUnsignedConstant().getValue(),
> +             u->getCompilationDir(),
> +             DILineInfoSpecifier::FileLineInfoKind::AbsoluteFilePath,
> File)) {
> +        File = '"' + File + '"';
> +        Name = File.c_str();
> +      }
> +  } else if (Optional<uint64_t> Val = formValue.getAsUnsignedConstant())
>     Name = AttributeValueString(attr, *Val);
>
>   if (Name) {
>
> Modified: llvm/trunk/lib/DebugInfo/DWARFDebugInfoEntry.h
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/DebugInfo/DWARFDebugInfoEntry.h?rev=218246&r1=218245&r2=218246&view=diff
> ==============================================================================
> --- llvm/trunk/lib/DebugInfo/DWARFDebugInfoEntry.h (original)
> +++ llvm/trunk/lib/DebugInfo/DWARFDebugInfoEntry.h Mon Sep 22 07:36:04 2014
> @@ -38,9 +38,9 @@ public:
>   DWARFDebugInfoEntryMinimal()
>     : Offset(0), SiblingIdx(0), AbbrevDecl(nullptr) {}
>
> -  void dump(raw_ostream &OS, const DWARFUnit *u, unsigned recurseDepth,
> +  void dump(raw_ostream &OS, DWARFUnit *u, unsigned recurseDepth,
>             unsigned indent = 0) const;
> -  void dumpAttribute(raw_ostream &OS, const DWARFUnit *u, uint32_t
> *offset_ptr,
> +  void dumpAttribute(raw_ostream &OS, DWARFUnit *u, uint32_t *offset_ptr,
>                      uint16_t attr, uint16_t form, unsigned indent = 0)
> const;
>
>   /// Extracts a debug info entry, which is a child of a given unit,
>
> Modified: llvm/trunk/test/DebugInfo/X86/2011-09-26-GlobalVarContext.ll
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/X86/2011-09-26-GlobalVarContext.ll?rev=218246&r1=218245&r2=218246&view=diff
> ==============================================================================
> --- llvm/trunk/test/DebugInfo/X86/2011-09-26-GlobalVarContext.ll (original)
> +++ llvm/trunk/test/DebugInfo/X86/2011-09-26-GlobalVarContext.ll Mon Sep 22
> 07:36:04 2014
> @@ -40,7 +40,7 @@ declare void @llvm.dbg.declare(metadata,
> ; CHECK-NOT: DW_TAG
> ; CHECK: DW_AT_name [DW_FORM_strp]       ( .debug_str[0x{{[0-9a-f]*}}] =
> "GLB")
> ; CHECK-NOT: DW_TAG
> -; CHECK: DW_AT_decl_file [DW_FORM_data1] (0x01)
> +; CHECK: DW_AT_decl_file [DW_FORM_data1]
> ("/work/llvm/vanilla/test/DebugInfo/test.c")
> ; CHECK-NOT: DW_TAG
> ; CHECK: DW_AT_decl_line [DW_FORM_data1] (1)
>
> @@ -48,7 +48,7 @@ declare void @llvm.dbg.declare(metadata,
> ; CHECK-NOT: DW_TAG
> ; CHECK: DW_AT_name [DW_FORM_strp]   ( .debug_str[0x{{[0-9a-f]*}}] = "LOC")
> ; CHECK-NOT: DW_TAG
> -; CHECK: DW_AT_decl_file [DW_FORM_data1]     (0x01)
> +; CHECK: DW_AT_decl_file [DW_FORM_data1]
> ("/work/llvm/vanilla/test/DebugInfo/test.c")
> ; CHECK-NOT: DW_TAG
> ; CHECK: DW_AT_decl_line [DW_FORM_data1]     (4)
>
>
> Modified: llvm/trunk/test/DebugInfo/namespace.ll
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/namespace.ll?rev=218246&r1=218245&r2=218246&view=diff
> ==============================================================================
> --- llvm/trunk/test/DebugInfo/namespace.ll (original)
> +++ llvm/trunk/test/DebugInfo/namespace.ll Mon Sep 22 07:36:04 2014
> @@ -5,12 +5,12 @@
> ; CHECK: debug_info contents
> ; CHECK: [[NS1:0x[0-9a-f]*]]:{{ *}}DW_TAG_namespace
> ; CHECK-NEXT: DW_AT_name{{.*}} = "A"
> -; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F1:[0-9]]])
> +; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F1:".*debug-info-namespace.cpp"]])
> ; CHECK-NEXT: DW_AT_decl_line{{.*}}(3)
> ; CHECK-NOT: NULL
> ; CHECK: [[NS2:0x[0-9a-f]*]]:{{ *}}DW_TAG_namespace
> ; CHECK-NEXT: DW_AT_name{{.*}} = "B"
> -; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F2:[0-9]]])
> +; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F2:".*foo.cpp"]])
> ; CHECK-NEXT: DW_AT_decl_line{{.*}}(1)
> ; CHECK-NOT: NULL
> ; CHECK: [[I:0x[0-9a-f]*]]:{{ *}}DW_TAG_variable
> @@ -39,7 +39,7 @@
> ; CHECK: DW_TAG_imported_module
> ; This is a bug, it should be in F2 but it inherits the file from its
> ; enclosing scope
> -; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F1]])
> +; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F1]])
> ; CHECK-NEXT: DW_AT_decl_line{{.*}}(8)
> ; CHECK-NEXT: DW_AT_import{{.*}}=> {[[NS2]]})
> ; CHECK: NULL
> @@ -47,7 +47,7 @@
>
> ; CHECK: DW_TAG_imported_module
> ; Same bug as above, this should be F2, not F1
> -; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F1]])
> +; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F1]])
> ; CHECK-NEXT: DW_AT_decl_line{{.*}}(11)
> ; CHECK-NEXT: DW_AT_import{{.*}}=> {[[NS1]]})
> ; CHECK-NOT: NULL
> @@ -59,38 +59,38 @@
> ; CHECK: DW_AT_name{{.*}}= "func"
> ; CHECK-NOT: NULL
> ; CHECK: DW_TAG_imported_module
> -; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F2]])
> +; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F2]])
> ; CHECK-NEXT: DW_AT_decl_line{{.*}}(18)
> ; CHECK-NEXT: DW_AT_import{{.*}}=> {[[NS1]]})
> ; CHECK-NOT: NULL
> ; CHECK: DW_TAG_imported_declaration
> -; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F2]])
> +; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F2]])
> ; CHECK-NEXT: DW_AT_decl_line{{.*}}(19)
> ; CHECK-NEXT: DW_AT_import{{.*}}=> {[[FOO]]})
> ; CHECK-NOT: NULL
> ; CHECK: DW_TAG_imported_declaration
> -; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F2]])
> +; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F2]])
> ; CHECK-NEXT: DW_AT_decl_line{{.*}}(20)
> ; CHECK-NEXT: DW_AT_import{{.*}}=> {[[BAR]]})
> ; CHECK-NOT: NULL
> ; CHECK: DW_TAG_imported_declaration
> -; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F2]])
> +; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F2]])
> ; CHECK-NEXT: DW_AT_decl_line{{.*}}(21)
> ; CHECK-NEXT: DW_AT_import{{.*}}=> {[[FUNC1]]})
> ; CHECK-NOT: NULL
> ; CHECK: DW_TAG_imported_declaration
> -; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F2]])
> +; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F2]])
> ; CHECK-NEXT: DW_AT_decl_line{{.*}}(22)
> ; CHECK-NEXT: DW_AT_import{{.*}}=> {[[I]]})
> ; CHECK-NOT: NULL
> ; CHECK: [[X:0x[0-9a-f]*]]:{{ *}}DW_TAG_imported_declaration
> -; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F2]])
> +; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F2]])
> ; CHECK-NEXT: DW_AT_decl_line{{.*}}(24)
> ; CHECK-NEXT: DW_AT_import{{.*}}=> {[[NS1]]})
> ; CHECK-NEXT: DW_AT_name{{.*}}"X"
> ; CHECK-NOT: NULL
> ; CHECK: DW_TAG_imported_declaration
> -; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F2]])
> +; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F2]])
> ; CHECK-NEXT: DW_AT_decl_line{{.*}}(25)
> ; CHECK-NEXT: DW_AT_import{{.*}}=> {[[X]]})
> ; CHECK-NEXT: DW_AT_name{{.*}}"Y"
> @@ -98,16 +98,13 @@
> ; CHECK: DW_TAG_lexical_block
> ; CHECK-NOT: NULL
> ; CHECK: DW_TAG_imported_module
> -; CHECK-NEXT: DW_AT_decl_file{{.*}}(0x0[[F2]])
> +; CHECK-NEXT: DW_AT_decl_file{{.*}}([[F2]])
> ; CHECK-NEXT: DW_AT_decl_line{{.*}}(15)
> ; CHECK-NEXT: DW_AT_import{{.*}}=> {[[NS2]]})
> ; CHECK: NULL
> ; CHECK: NULL
> ; CHECK: NULL
>
> -; CHECK: file_names[  [[F1]]]{{.*}}debug-info-namespace.cpp
> -; CHECK: file_names[  [[F2]]]{{.*}}foo.cpp
> -
> ; IR generated from clang/test/CodeGenCXX/debug-info-namespace.cpp, file
> paths
> ; changed to protect the guilty. The C++ source code is:
> ; namespace A {
>
> Modified: llvm/trunk/test/MC/MachO/gen-dwarf.s
> URL:
> http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/MachO/gen-dwarf.s?rev=218246&r1=218245&r2=218246&view=diff
> ==============================================================================
> --- llvm/trunk/test/MC/MachO/gen-dwarf.s (original)
> +++ llvm/trunk/test/MC/MachO/gen-dwarf.s Mon Sep 22 07:36:04 2014
> @@ -50,7 +50,7 @@ _x:   .long 1
>
> // CHECK:    DW_TAG_label [2] *
> // CHECK:      DW_AT_name [DW_FORM_string]     ("bar")
> -// CHECK:      DW_AT_decl_file [DW_FORM_data4] (0x00000001)
> +// CHECK:      DW_AT_decl_file [DW_FORM_data4] ([[FILE:".*gen-dwarf.s"]])
> // CHECK:      DW_AT_decl_line [DW_FORM_data4] (5)
> // CHECK:      DW_AT_low_pc [DW_FORM_addr]     (0x0000000000000000)
> // CHECK:      DW_AT_prototyped [DW_FORM_flag] (0x00)
> @@ -61,7 +61,7 @@ _x:   .long 1
>
> // CHECK:    DW_TAG_label [2] *
> // CHECK:      DW_AT_name [DW_FORM_string]     ("foo")
> -// CHECK:      DW_AT_decl_file [DW_FORM_data4] (0x00000001)
> +// CHECK:      DW_AT_decl_file [DW_FORM_data4] ([[FILE]])
> // CHECK:      DW_AT_decl_line [DW_FORM_data4] (9)
> // CHECK:      DW_AT_low_pc [DW_FORM_addr]     (0x0000000000000007)
> // CHECK:      DW_AT_prototyped [DW_FORM_flag] (0x00)
> @@ -72,7 +72,7 @@ _x:   .long 1
>
> // CHECK:    DW_TAG_label [2] *
> // CHECK:      DW_AT_name [DW_FORM_string]     ("baz")
> -// CHECK:      DW_AT_decl_file [DW_FORM_data4] (0x00000001)
> +// CHECK:      DW_AT_decl_file [DW_FORM_data4] ([[FILE]])
> // CHECK:      DW_AT_decl_line [DW_FORM_data4] (10)
> // CHECK:      DW_AT_low_pc [DW_FORM_addr]     (0x0000000000000007)
> // CHECK:      DW_AT_prototyped [DW_FORM_flag] (0x00)
>
>
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