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Build bot issues (http://lab.llvm.org:8011/builders/clang-x64-ninja-win7/builds/15856/steps/ninja%20check%201/logs/FAIL%3A%20LLVM%3A%3Adwarfdump-dump-gdbindex.test) should be fixed in that version. Issue was that MSVS does not support "%zu". Though it works fine on MSCS 2015, Bot looks running MSVS 2013 that does not like it. MSDN also says that "z" prefix is not supported: https://msdn.microsoft.com/en-us/library/tcxf1dw6.aspx I had to use PRId64 instead. Original commit message: [llvm-dwarfdump] - Teach dwarfdump to dump gdb-index section. gold linker's --gdb-index option currently is able to create the .gdb_index section that allows GDB to locate and read the .dwo files as it needs them, this helps reduce the total size of the object files processed by the linker. More info about that: https://gcc.gnu.org/wiki/DebugFission https://sourceware.org/gdb/onlinedocs/gdb/Index-Section-Format.html Patch teaches dwarfdump tool to dump this section. Differential revision: https://reviews.llvm.org/D21503 llvm-svn: 282239
36 lines
1.5 KiB
Plaintext
36 lines
1.5 KiB
Plaintext
RUN: llvm-dwarfdump -debug-dump=gdb_index %p/Inputs/dwarfdump-gdbindex-v7.elf-x86-64 | FileCheck %s
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; test.cpp:
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; int main() { return 0; }
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; test2.cpp:
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; int main2() { return 0; }
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; Compiled with:
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; gcc -gsplit-dwarf -c test.cpp test2.cpp
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; gold --gdb-index test.o test2.o -o dwarfdump-gdbindex-v7.elf-x86-64
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; gcc version 5.3.1 20160413, GNU gold (GNU Binutils for Ubuntu 2.26) 1.11
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; Info about gdb-index: https://sourceware.org/gdb/onlinedocs/gdb/Index-Section-Format.html
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; CHECK-LABEL: .gnu_index contents:
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; CHECK: Version = 7
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; CHECK: CU list offset = 0x18, has 2 entries:
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; CHECK-NEXT: 0: Offset = 0x0, Length = 0x34
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; CHECK-NEXT: 1: Offset = 0x34, Length = 0x34
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; CHECK: Address area offset = 0x38, has 2 entries:
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; CHECK-NEXT: Low address = 0x4000e8, High address = 0x4000f3, CU index = 0
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; CHECK-NEXT: Low address = 0x4000f3, High address = 0x4000fe, CU index = 1
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; CHECK: Symbol table offset = 0x60, size = 1024, filled slots:
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; CHECK-NEXT: 489: Name offset = 0x1d, CU vector offset = 0x0
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; CHECK-NEXT: String name: main, CU vector index: 0
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; CHECK-NEXT: 754: Name offset = 0x22, CU vector offset = 0x8
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; CHECK-NEXT: String name: int, CU vector index: 1
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; CHECK-NEXT: 956: Name offset = 0x26, CU vector offset = 0x14
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; CHECK-NEXT: String name: main2, CU vector index: 2
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; CHECK: Constant pool offset = 0x2060, has 3 CU vectors:
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; CHECK-NEXT: 0(0x0): 0x30000000
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; CHECK-NEXT: 1(0x8): 0x90000000 0x90000001
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; CHECK-NEXT: 2(0x14): 0x30000001
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