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llvm-project/lld/test/ELF/undef-broken-debug.test

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Don't crash on broken debug info. llvm-svn: 319367
2017-11-30 06:09:16 +08:00
# REQUIRES: x86
# RUN: yaml2obj %s -o %t.o
[ELF] Replace unused output filenames with /dev/null in tests Post commit review at rLLD335992 llvm-svn: 336129
2018-07-03 01:48:23 +08:00
# RUN: not ld.lld %t.o -o /dev/null 2>&1 | FileCheck %s
Don't crash on broken debug info. llvm-svn: 319367
2017-11-30 06:09:16 +08:00
# The debug info has a broken relocation. Check that we don't crash
# and still report the undefined symbol.
[ELF] - Do not fail on R_*_NONE relocations when parsing the debug info. This is https://bugs.llvm.org//show_bug.cgi?id=38919. Currently, LLD may report "unsupported relocation target while parsing debug info" when parsing the debug information. At the same time LLD does that for zeroed R_X86_64_NONE relocations, which obviously has "invalid" targets. The nature of R_*_NONE relocation assumes them should be ignored. This patch teaches LLD to stop reporting the debug information parsing errors for them. Differential revision: https://reviews.llvm.org/D52408 llvm-svn: 343078
2018-09-26 16:11:34 +08:00
# CHECK: error: {{.*}}.o: relocation R_X86_64_64 at 0x29 has unsupported target
Don't crash on broken debug info. llvm-svn: 319367
2017-11-30 06:09:16 +08:00
# CHECK: error: undefined symbol: bar
--- !ELF
FileHeader:
Class: ELFCLASS64
Data: ELFDATA2LSB
Type: ET_REL
Machine: EM_X86_64
Sections:
- Name: .text
Type: SHT_PROGBITS
Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
Content: '0000000000000000'
- Name: .rela.text
Type: SHT_RELA
Fix reloc section alignment in test. This should fix the ubsan bot. We still have to fix lld to produce a clean error on unaligned reloc sections. llvm-svn: 319385
2017-11-30 07:39:12 +08:00
AddressAlign: 8
Don't crash on broken debug info. llvm-svn: 319367
2017-11-30 06:09:16 +08:00
Link: .symtab
Info: .text
Relocations:
- Offset: 0x0000000000000000
Symbol: bar
Type: R_X86_64_64
- Name: .debug_line
Type: SHT_PROGBITS
Content: 3300000002001C0000000101FB0E0D000101010100000001000001006162632E7300000000000009020000000000000000140208000101
- Name: .rela.debug_line
Fix reloc section alignment in test. This should fix the ubsan bot. We still have to fix lld to produce a clean error on unaligned reloc sections. llvm-svn: 319385
2017-11-30 07:39:12 +08:00
AddressAlign: 8
Don't crash on broken debug info. llvm-svn: 319367
2017-11-30 06:09:16 +08:00
Type: SHT_RELA
Link: .symtab
Info: .debug_line
Relocations:
- Offset: 0x0000000000000029
Symbol: bar
Type: R_X86_64_64
Make the debug info in some tests more realistic. Currently lld just parses the .debug_line section assuming that there is only one compile unit. That assumption is false (PR36793). I have a patch that changes lld to iterate over the compile units and parse the portions of the .debug_line they point to (which fixes PR36793). A problem is that we will then need a compiler unit pointing to .debug_line for lld to see it. It seems like bfd has the same restriction. This patch updates existing tests to add a minimal compile unit so that they still work with PR36793 fixed. llvm-svn: 328215
2018-03-23 01:14:41 +08:00
- Name: .debug_info
Type: SHT_PROGBITS
AddressAlign: 0x0000000000000001
Content: 0C000000040000000000080100000000
- Name: .rela.debug_info
Type: SHT_RELA
Link: .symtab
AddressAlign: 0x0000000000000008
Info: .debug_info
Relocations:
- Offset: 0x0000000000000006
Symbol: .debug_abbrev
Type: R_X86_64_32
- Offset: 0x000000000000000C
Symbol: .debug_line
Type: R_X86_64_32
- Name: .debug_abbrev
Type: SHT_PROGBITS
AddressAlign: 0x0000000000000001
Content: '0111001017000000'
Don't crash on broken debug info. llvm-svn: 319367
2017-11-30 06:09:16 +08:00
Symbols:
Global:
- Name: _start
Section: .text
- Name: bar