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[LLD] Report errors occurred while parsing debug info as warnings. 

Summary:
Extracted from D74773. Currently, errors happened while parsing
debug info are reported as errors. DebugInfoDWARF library treats such
errors as "Recoverable errors". This patch makes debug info errors
to be reported as warnings, to support DebugInfoDWARF approach.

Reviewers: ruiu, grimar, MaskRay, jhenderson, espindola

Reviewed By: MaskRay, jhenderson

Subscribers: emaste, aprantl, arichardson, arphaman, llvm-commits

Tags: #llvm, #debug-info, #lld

Differential Revision: https://reviews.llvm.org/D75234
This commit is contained in:
Alexey Lapshin 2020-02-27 13:21:58 +03:00
parent e551b737c3
commit 0a2d415bd0
3 changed files with 8 additions and 8 deletions
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4
lld/ELF/SyntheticSections.cpp
View File

@ -2668,12 +2668,12 @@ readAddressAreas(DWARFContext &dwarf, InputSection *sec) {
uint32_t cuIdx = 0;
for (std::unique_ptr<DWARFUnit> &cu : dwarf.compile_units()) {
if (Error e = cu->tryExtractDIEsIfNeeded(false)) {
error(toString(sec) + ": " + toString(std::move(e)));
warn(toString(sec) + ": " + toString(std::move(e)));
return {};
}
Expected<DWARFAddressRangesVector> ranges = cu->collectAddressRanges();
if (!ranges) {
error(toString(sec) + ": " + toString(ranges.takeError()));
warn(toString(sec) + ": " + toString(ranges.takeError()));
return {};
}

8
lld/test/ELF/gdb-index-invalid-ranges.s
View File

@ -1,12 +1,12 @@
# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
# RUN: not ld.lld --gdb-index -e main %t.o -o /dev/null 2>&1 | FileCheck %s
# RUN: ld.lld --gdb-index -e main %t.o -o /dev/null 2>&1 | FileCheck %s
# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %p/Inputs/gdb-index-invalid-ranges.obj.s -o %t2.o
# RUN: llvm-ar rc %t.a %t.o
# RUN: not ld.lld --gdb-index -e main %t2.o %t.a -o /dev/null 2>&1 | FileCheck --check-prefix=ARCHIVE %s
# RUN: ld.lld --gdb-index -e main %t2.o %t.a -o /dev/null 2>&1 | FileCheck --check-prefix=ARCHIVE %s
# CHECK: ld.lld: error: {{.*}}gdb-index-invalid-ranges.s.tmp.o:(.debug_info): decoding address ranges: invalid range list entry at offset 0x10
# ARCHIVE: ld.lld: error: {{.*}}gdb-index-invalid-ranges.s.tmp.a(gdb-index-invalid-ranges.s.tmp.o):(.debug_info): decoding address ranges: invalid range list entry at offset 0x10
# CHECK: ld.lld: warning: {{.*}}gdb-index-invalid-ranges.s.tmp.o:(.debug_info): decoding address ranges: invalid range list entry at offset 0x10
# ARCHIVE: ld.lld: warning: {{.*}}gdb-index-invalid-ranges.s.tmp.a(gdb-index-invalid-ranges.s.tmp.o):(.debug_info): decoding address ranges: invalid range list entry at offset 0x10
.section .text.foo1,"ax",@progbits
.globl f1

4
lld/test/ELF/gdb-index-parse-fail.s
View File

@ -1,8 +1,8 @@
# REQUIRES: x86
# RUN: llvm-mc -filetype=obj -triple=x86_64-pc-linux %s -o %t1.o
# RUN: not ld.lld --gdb-index %t1.o -o /dev/null 2>&1 | FileCheck %s
# RUN: ld.lld --gdb-index %t1.o -o /dev/null 2>&1 | FileCheck %s
# CHECK: error: {{.*}}:(.debug_info): invalid reference to or invalid content in .debug_str_offsets[.dwo]: insufficient space for 32 bit header prefix
# CHECK: warning: {{.*}}:(.debug_info): invalid reference to or invalid content in .debug_str_offsets[.dwo]: insufficient space for 32 bit header prefix
.section .debug_abbrev,"",@progbits
.byte 1 # Abbreviation Code