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[llvm-readelf] - Report unique warnings when dumping hash symbols/histogram.

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This converts 2 more places to use `reportUniqueWarning` and adds tests.

Differential revision: https://reviews.llvm.org/D92551
This commit is contained in:
Georgii Rymar 2020-12-03 11:42:17 +03:00
parent 78b51b6b79
commit 924cd26a7e
3 changed files with 15 additions and 14 deletions
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9
test/tools/llvm-readobj/ELF/hash-histogram.test
View File

@ -71,13 +71,14 @@ ProgramHeaders:
## the bucket array pointing to a cycle.
# RUN: yaml2obj --docnum=2 %s -o %t2.o
# RUN: llvm-readelf --elf-hash-histogram 2>&1 %t2.o | FileCheck -DFILE=%t2.o %s --check-prefix=BROKEN
# RUN: llvm-readelf --elf-hash-histogram 2>&1 %t2.o | \
# RUN: FileCheck -DFILE=%t2.o %s --check-prefix=BROKEN --implicit-check-not=warning:
# BROKEN: warning: '[[FILE]]': .hash section is invalid: bucket 1: a cycle was detected in the linked chain
# BROKEN: Histogram for bucket list length (total of 1 buckets)
# BROKEN: Histogram for bucket list length (total of 2 buckets)
# BROKEN-NEXT: Length Number % of total Coverage
# BROKEN-NEXT: 0 0 ( 0.0%) 0.0%
# BROKEN-NEXT: 1 1 (100.0%) 100.0%
# BROKEN-NEXT: 1 2 (100.0%) 100.0%
--- !ELF
FileHeader:
@ -88,7 +89,7 @@ Sections:
- Name: .hash
Type: SHT_HASH
Link: .dynsym
Bucket: [ 1 ]
Bucket: [ 1, 1 ]
Chain: [ 0, 1 ]
- Name: .dynamic
Type: SHT_DYNAMIC

10
test/tools/llvm-readobj/ELF/hash-symbols.test
View File

@ -328,12 +328,15 @@ ProgramHeaders:
## the bucket array pointing to a cycle.
# RUN: yaml2obj --docnum=5 %s -o %t5.so
# RUN: llvm-readelf --hash-symbols %t5.so 2>&1 | FileCheck %s -DFILE=%t5.so --check-prefix=BROKEN
# RUN: llvm-readelf --hash-symbols %t5.so 2>&1 | \
# RUN: FileCheck %s -DFILE=%t5.so --check-prefix=BROKEN --implicit-check-not=warning:
# BROKEN: Symbol table of .hash for image:
# BROKEN-NEXT: Num Buc: Value Size Type Bind Vis Ndx Name
# BROKEN-NEXT: 1 0: 00000000 0 NOTYPE LOCAL DEFAULT UND aaa
# BROKEN: warning: '[[FILE]]': .hash section is invalid: bucket 1: a cycle was detected in the linked chain
# BROKEN-NEXT: 1 1: 00000000 0 NOTYPE LOCAL DEFAULT UND aaa
# BROKEN-NOT: {{.}}
--- !ELF
FileHeader:
@ -344,7 +347,7 @@ Sections:
- Name: .hash
Type: SHT_HASH
Link: .dynsym
Bucket: [ 1 ]
Bucket: [ 1, 1 ]
Chain: [ 1, 1 ]
- Name: .dynamic
Type: SHT_DYNAMIC
@ -355,8 +358,7 @@ Sections:
- Tag: DT_HASH
Value: 0x0
DynamicSymbols:
- Name: aaa
- Name: bbb
- Name: aaa
ProgramHeaders:
- Type: PT_LOAD
FirstSec: .hash

10
tools/llvm-readobj/ELFDumper.cpp
View File

@ -4124,10 +4124,9 @@ void GNUStyle<ELFT>::printHashTableSymbols(const Elf_Hash &SysVHash) {
break;
if (Visited[Ch]) {
reportWarning(createError(".hash section is invalid: bucket " +
this->reportUniqueWarning(".hash section is invalid: bucket " +
Twine(Ch) +
": a cycle was detected in the linked chain"),
this->FileName);
": a cycle was detected in the linked chain");
break;
}
@ -4868,10 +4867,9 @@ void GNUStyle<ELFT>::printHashHistogram(const Elf_Hash &HashTable) {
if (C == ELF::STN_UNDEF)
break;
if (Visited[C]) {
reportWarning(createError(".hash section is invalid: bucket " +
this->reportUniqueWarning(".hash section is invalid: bucket " +
Twine(C) +
": a cycle was detected in the linked chain"),
this->FileName);
": a cycle was detected in the linked chain");
break;
}
Visited[C] = true;