93ad0edf67
Fixes PR48693: --emit-relocs keeps relocation sections. --gdb-index drops .debug_gnu_pubnames and .debug_gnu_pubtypes but not their relocation sections. This can cause a null pointer dereference in `getOutputSectionName`. Also delete debug-gnu-pubnames.s which is covered by gdb-index.s Reviewed By: grimar Differential Revision: https://reviews.llvm.org/D94354
135 lines
3.6 KiB
ArmAsm
135 lines
3.6 KiB
ArmAsm
# REQUIRES: x86, zlib
|
|
# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t1.o
|
|
# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/gdb-index.s -o %t2.o
|
|
# RUN: ld.lld --gdb-index %t1.o %t2.o -o %t
|
|
|
|
# RUN: llvm-objdump -d %t | FileCheck %s --check-prefix=DISASM
|
|
# RUN: llvm-dwarfdump -gdb-index %t | FileCheck %s --check-prefix=DWARF
|
|
|
|
## Drop .debug_gnu_pubnames and .debug_gnu_pubtypes.
|
|
## Also drop their relocation sections if --emit-relocs is specified.
|
|
# RUN: ld.lld --gdb-index --emit-relocs %t1.o %t2.o -o %t1
|
|
# RUN: llvm-readelf --sections %t1 | FileCheck %s --check-prefix=SECTION
|
|
|
|
# SECTION-NOT: .debug_gnu_pubnames
|
|
# SECTION-NOT: .debug_gnu_pubtypes
|
|
|
|
# RUN: llvm-mc -compress-debug-sections=zlib-gnu -filetype=obj -triple=x86_64-pc-linux \
|
|
# RUN: %p/Inputs/gdb-index.s -o %t2.o
|
|
# RUN: ld.lld --gdb-index %t1.o %t2.o -o %t
|
|
|
|
# RUN: llvm-objdump -d %t | FileCheck %s --check-prefix=DISASM
|
|
# RUN: llvm-dwarfdump -gdb-index %t | FileCheck %s --check-prefix=DWARF
|
|
# RUN: llvm-readelf -sections %t | FileCheck %s --check-prefix=SECTION
|
|
|
|
# DISASM: Disassembly of section .text:
|
|
# DISASM-EMPTY:
|
|
# DISASM: <entrypoint>:
|
|
# DISASM-CHECK: 201000: 90 nop
|
|
# DISASM-CHECK: 201001: cc int3
|
|
# DISASM-CHECK: 201002: cc int3
|
|
# DISASM-CHECK: 201003: cc int3
|
|
# DISASM: <aaaaaaaaaaaaaaaa>:
|
|
# DISASM-CHECK: 201004: 90 nop
|
|
# DISASM-CHECK: 201005: 90 nop
|
|
|
|
# DWARF: .gdb_index contents:
|
|
# DWARF-NEXT: Version = 7
|
|
# DWARF: CU list offset = 0x18, has 2 entries:
|
|
# DWARF-NEXT: 0: Offset = 0x0, Length = 0x34
|
|
# DWARF-NEXT: 1: Offset = 0x34, Length = 0x34
|
|
# DWARF: Address area offset = 0x38, has 2 entries:
|
|
# DWARF-NEXT: Low/High address = [0x201120, 0x201121) (Size: 0x1), CU id = 0
|
|
# DWARF-NEXT: Low/High address = [0x201124, 0x201126) (Size: 0x2), CU id = 1
|
|
# DWARF: Symbol table offset = 0x60, size = 1024, filled slots:
|
|
# DWARF-NEXT: 512: Name offset = 0x1c, CU vector offset = 0x0
|
|
# DWARF-NEXT: String name: aaaaaaaaaaaaaaaa, CU vector index: 0
|
|
# DWARF-NEXT: 754: Name offset = 0x38, CU vector offset = 0x10
|
|
# DWARF-NEXT: String name: int, CU vector index: 2
|
|
# DWARF-NEXT: 822: Name offset = 0x2d, CU vector offset = 0x8
|
|
# DWARF-NEXT: String name: entrypoint, CU vector index: 1
|
|
# DWARF: Constant pool offset = 0x2060, has 3 CU vectors:
|
|
# DWARF-NEXT: 0(0x0): 0x30000001
|
|
# DWARF-NEXT: 1(0x8): 0x30000000
|
|
# DWARF-NEXT: 2(0x10): 0x90000000 0x90000001
|
|
|
|
# RUN: ld.lld --gdb-index --no-gdb-index %t1.o %t2.o -o %t2
|
|
# RUN: llvm-readobj --sections %t2 | FileCheck -check-prefix=NOGDB %s
|
|
# NOGDB-NOT: Name: .gdb_index
|
|
|
|
## The following section contents are created by this using gcc 7.1.0:
|
|
## echo 'int entrypoint() { return 0; }' | gcc -gsplit-dwarf -xc++ -S -o- -
|
|
|
|
.text
|
|
.Ltext0:
|
|
.globl entrypoint
|
|
.type entrypoint, @function
|
|
entrypoint:
|
|
nop
|
|
.Letext0:
|
|
|
|
.section .debug_info,"",@progbits
|
|
.long 0x30
|
|
.value 0x4
|
|
.long 0
|
|
.byte 0x8
|
|
.uleb128 0x1
|
|
.quad .Ltext0
|
|
.quad .Letext0-.Ltext0
|
|
.long 0
|
|
.long 0
|
|
.long 0
|
|
.long 0
|
|
.byte 0x63
|
|
.byte 0x88
|
|
.byte 0xb4
|
|
.byte 0x61
|
|
.byte 0xaa
|
|
.byte 0xb6
|
|
.byte 0xb0
|
|
.byte 0x67
|
|
|
|
.section .debug_abbrev,"",@progbits
|
|
.uleb128 0x1
|
|
.uleb128 0x11
|
|
.byte 0
|
|
.uleb128 0x11
|
|
.uleb128 0x1
|
|
.uleb128 0x12
|
|
.uleb128 0x7
|
|
.uleb128 0x10
|
|
.uleb128 0x17
|
|
.uleb128 0x2130
|
|
.uleb128 0xe
|
|
.uleb128 0x1b
|
|
.uleb128 0xe
|
|
.uleb128 0x2134
|
|
.uleb128 0x19
|
|
.uleb128 0x2133
|
|
.uleb128 0x17
|
|
.uleb128 0x2131
|
|
.uleb128 0x7
|
|
.byte 0
|
|
.byte 0
|
|
.byte 0
|
|
|
|
.section .debug_gnu_pubnames,"",@progbits
|
|
.long 0x1e
|
|
.value 0x2
|
|
.long .debug_info
|
|
.long 0x33
|
|
.long 0x18
|
|
.byte 0x30
|
|
.string "entrypoint"
|
|
.long 0
|
|
|
|
.section .debug_gnu_pubtypes,"",@progbits
|
|
.long 0x17
|
|
.value 0x2
|
|
.long .debug_info
|
|
.long 0x33
|
|
.long 0x2b
|
|
.byte 0x90
|
|
.string "int"
|
|
.long 0
|