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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:
[ELF][test]Remove unnecessary empty symbol references in yaml/add missing symbols for relocs yaml2obj used to require the Symbol field in relocations, but it hasn't done so for a couple of years. Another change to yaml2obj will soon land that will look up the symbol by name or index, if present, and emit an error if not found. This will mean that an explicit symbol reference (even to an empty-named symbol) that does not reference a symbol declared in the yaml will result in an error. This patch updates tests that would otherwise start emitting errors. Reviewed by: ruiu, grimar Differential Revision: https://reviews.llvm.org/D58508 llvm-svn: 354666
2019-02-22 19:22:39 +08:00
Local:
- Name: .debug_abbrev
Type: STT_SECTION
Section: .debug_abbrev
- Name: .debug_line
Type: STT_SECTION
Section: .debug_line
Don't crash on broken debug info. llvm-svn: 319367
2017-11-30 06:09:16 +08:00
Global:
- Name: _start
Section: .text
- Name: bar