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[DWARF][GDB INDEX] Fix to deal with constant pool de-dupliation Summary:
GDB 11.2 generates V8 version of gdb-index where it de-duplicates entries in constant pool based on cu indices. Changed how constant pool entries are counted to account for this. Differential Revision: https://reviews.llvm.org/D146852
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,68 @@ | ||
RUN: llvm-dwarfdump -gdb-index %p/Inputs/dwarfdump-gdbindex-v8.elf-x86-64 | FileCheck %s | ||
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; main.cpp: | ||
; typedef struct | ||
; { | ||
; unsigned a; | ||
; unsigned b; | ||
; } S; | ||
; | ||
; int main() { | ||
; S s; | ||
; s.a = 0x64A40101; | ||
; } | ||
; helper.cpp: | ||
; typedef struct | ||
; { | ||
; unsigned a; | ||
; unsigned b; | ||
; } S2; | ||
; | ||
; int foo() { | ||
; S2 s; | ||
; s.a = 0x64A40101; | ||
; } | ||
; Compiled with: | ||
; clang++ -ggnu-pubnames -g2 -gdwarf-4 -fdebug-types-section -c test.cpp test2.cpp | ||
; ld.lld main.o helper.o -o dwarfdump-gdbindex-v8.elf-x86-64 | ||
; gdb-11/bin/gdb-add-index dwarfdump-gdbindex-v8.elf-x86-64 | ||
; clang version 17.0.0 (https://github.com/llvm/llvm-project.git 128b050d3c234c7238966349f8878884123a0030) | ||
; GNU gdb (GDB) 11.2 | ||
; Info about gdb-index: https://sourceware.org/gdb/onlinedocs/gdb/Index-Section-Format.html | ||
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; CHECK-LABEL: .gdb_index contents: | ||
; CHECK: Version = 8 | ||
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; CHECK: CU list offset = 0x18, has 2 entries: | ||
; CHECK-NEXT: 0: Offset = 0x0, Length = 0x6e | ||
; CHECK-NEXT: 1: Offset = 0x6e, Length = 0x72 | ||
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; CHECK: Types CU list offset = 0x38, has 2 entries: | ||
; CHECK-NEXT: 0: offset = 0x00000000, type_offset = 0x0000001e, type_signature = 0x418503b8111e9a7b | ||
; CHECK-NEXT; 1: offset = 0x00000044, type_offset = 0x0000001e, type_signature = 0x00f6cca4e3a15118 | ||
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; CHECK: Address area offset = 0x68, has 2 entries: | ||
; CHECK-NEXT: Low/High address = [0x201180, 0x20118f) (Size: 0xf), CU id = 0 | ||
; CHECK-NEXT: Low/High address = [0x201190, 0x20119d) (Size: 0xd), CU id = 1 | ||
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; CHECK: Symbol table offset = 0x90, size = 1024, filled slots: | ||
; CHECK-NEXT: 2: Name offset = 0x28, CU vector offset = 0x0 | ||
; CHECK-NEXT: String name: S, CU vector index: 0 | ||
; CHECK-NEXT: 71: Name offset = 0x2a, CU vector offset = 0x8 | ||
; CHECK-NEXT: String name: S2, CU vector index: 1 | ||
; CHECK-NEXT: 489: Name offset = 0x2d, CU vector offset = 0x10 | ||
; CHECK-NEXT: String name: main, CU vector index: 2 | ||
; CHECK-NEXT: 661: Name offset = 0x32, CU vector offset = 0x18 | ||
; CHECK-NEXT: String name: foo, CU vector index: 3 | ||
; CHECK-NEXT: 732: Name offset = 0x36, CU vector offset = 0x20 | ||
; CHECK-NEXT: String name: unsigned int, CU vector index: 4 | ||
; CHECK-NEXT: 754: Name offset = 0x43, CU vector offset = 0x0 | ||
; CHECK-NEXT: String name: int, CU vector index: 0 | ||
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; CHECK: Constant pool offset = 0x2090, has 5 CU vectors: | ||
; CHECK-NEXT: 0(0x0): 0x90000000 | ||
; CHECK-NEXT: 1(0x8): 0x90000001 | ||
; CHECK-NEXT: 2(0x10): 0x30000000 | ||
; CHECK-NEXT: 3(0x18): 0x30000001 | ||
; CHECK-NEXT: 4(0x20): 0x90000002 |