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* [Bug symtab/27898] New: [gdb] Cannot not find DIE
@ 2021-05-21 19:11 vries at gcc dot gnu.org
  2021-05-23  8:23 ` [Bug symtab/27898] " vries at gcc dot gnu.org
                   ` (13 more replies)
  0 siblings, 14 replies; 15+ messages in thread
From: vries at gcc dot gnu.org @ 2021-05-21 19:11 UTC (permalink / raw)
  To: gdb-prs

https://sourceware.org/bugzilla/show_bug.cgi?id=27898

            Bug ID: 27898
           Summary: [gdb] Cannot not find DIE
           Product: gdb
           Version: 10.1
            Status: NEW
          Severity: normal
          Priority: P2
         Component: symtab
          Assignee: unassigned at sourceware dot org
          Reporter: vries at gcc dot gnu.org
  Target Milestone: ---

[ As reported here (
https://sourceware.org/pipermail/gdb-patches/2021-May/179087.html ). ]

When loading the debug info package
libLLVM.so.10-10.0.1-lp152.30.4.x86_64.debug from openSUSE Leap 15.2, we run
into:
...
$ gdb -q -batch -ex run --args /usr/bin/lli test.ll
Dwarf Error: Cannot not find DIE at 0x18a936e7 \
  [from module libLLVM.so.10-10.0.1-lp152.30.4.x86_64.debug]
...

The error doesn't occur with -readnow.

Looking at the dwarf, it seems valid:
...
  Compilation Unit @ offset 0x18a23e52:
  ...
 <0><18a23e5d>: Abbrev Number: 1 (DW_TAG_compile_unit)
    <18a23e5e>   DW_AT_producer    : clang version 10.0.1
/home/abuild/rpmbuild/BUILD/llvm-10.0.1.src/stage1/bin/clang-10
--driver-mode=g++ -D _GNU_SOURCE -D __STDC_CONSTANT_MACROS -D
__STDC_FORMAT_MACROS -D __STDC_LIMIT_MACROS -I lib/ExecutionEngine/Orc
-I ../lib/ExecutionEngine/Orc -I /usr/include/libxml2 -I include -I
../include -fmessage-length=0 -grecord-command-line -O2 -Wall -D
_FORTIFY_SOURCE=0 -fstack-protector-strong -funwind-tables
-fasynchronous-unwind-tables -fstack-clash-protection -D NDEBUG -fPIC
-fvisibility-inlines-hidden -Wall -Wextra -Wno-unused-parameter
-Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic
-Wno-long-long -Wimplicit-fallthrough -Wno-noexcept-type
-Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wstring-conversion
-fdiagnostics-color -ffunction-sections -fdata-sections -flto=thin -O2
-g -D NDEBUG -fno-exceptions -std=c++14 -MD -MT
lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/LLJIT.cpp.o -MF
lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/LLJIT.cpp.o.d -o
lib/ExecutionEngine/Orc/CMakeFiles/LLVMOrcJIT.dir/LLJIT.cpp.o -c
../lib/ExecutionEngine/Orc/LLJIT.cpp
    <18a23e62>   DW_AT_language    : 33 (C++14)
    <18a23e64>   DW_AT_name        : ../lib/ExecutionEngine/Orc/LLJIT.cpp
 ...
 <1><18a936d4>: Abbrev Number: 71 (DW_TAG_subprogram)
 <2><18a936d5>: Abbrev Number: 174 (DW_TAG_class_type)
    <18a936d7>   DW_AT_calling_convention: 5    (pass by value)
    <18a936d8>   DW_AT_byte_size   : 8
    <18a936d9>   DW_AT_decl_file   : 185
    <18a936da>   DW_AT_decl_line   : 78
 <3><18a936db>: Abbrev Number: 9 (DW_TAG_member)
    <18a936dc>   DW_AT_name        : this
    <18a936e0>   DW_AT_type        : <0x18a8bb20>
    <18a936e4>   DW_AT_decl_file   : 185
    <18a936e5>   DW_AT_decl_line   : 78
    <18a936e6>   DW_AT_data_member_location: 0
 <3><18a936e7>: Abbrev Number: 175 (DW_TAG_subprogram)
    <18a936e9>   DW_AT_name        : operator()
    <18a936ed>   DW_AT_decl_file   : 185
    <18a936ee>   DW_AT_decl_line   : 78
    <18a936ef>   DW_AT_type        : <0x18a557ad>
    <18a936f3>   DW_AT_declaration : 1
    <18a936f3>   DW_AT_external    : 1
    <18a936f3>   DW_AT_accessibility: 1 (public)

  ...

 <1><18aa3589>: Abbrev Number: 251 (DW_TAG_subprogram)
    <18aa358b>   DW_AT_linkage_name: _ZZN4llvm10ThreadPool4waitEvENK3$_1clEv
    <18aa358f>   DW_AT_specification: <0x18a936e7>
    <18aa3593>   DW_AT_inline      : 1  (inlined)
    <18aa3594>   DW_AT_object_pointer: <0x18aa3598>
  ...
  Compilation Unit @ offset 0x18aa33d6:
...

I would be nice to get a smaller reproducer:
...
$ du -h /usr/lib/debug/usr/lib64/libLLVM.so.10-10.0.1-lp152.30.4.x86_64.debug
1.3G    /usr/lib/debug/usr/lib64/libLLVM.so.10-10.0.1-lp152.30.4.x86_64.debug
...

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^ permalink raw reply	[flat|nested] 15+ messages in thread
end of thread, other threads:[~2021-05-27 13:47 UTC | newest]

Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-05-21 19:11 [Bug symtab/27898] New: [gdb] Cannot not find DIE vries at gcc dot gnu.org
2021-05-23  8:23 ` [Bug symtab/27898] " vries at gcc dot gnu.org
2021-05-23 15:08 ` vries at gcc dot gnu.org
2021-05-25  7:55 ` vries at gcc dot gnu.org
2021-05-25 13:04 ` vries at gcc dot gnu.org
2021-05-25 14:25 ` simark at simark dot ca
2021-05-25 14:57 ` vries at gcc dot gnu.org
2021-05-25 21:25 ` vries at gcc dot gnu.org
2021-05-25 21:26 ` vries at gcc dot gnu.org
2021-05-25 21:28 ` vries at gcc dot gnu.org
2021-05-26  9:23 ` vries at gcc dot gnu.org
2021-05-26 21:54 ` vries at gcc dot gnu.org
2021-05-27 13:22 ` cvs-commit at gcc dot gnu.org
2021-05-27 13:25 ` vries at gcc dot gnu.org
2021-05-27 13:47 ` vries at gcc dot gnu.org

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