[PATCH] D67002: [llvm-nm] - Add a test case for case when we dump a symbol that belongs to a section with a broken sh_name.

George Rimar via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Mon Sep 2 06:53:19 PDT 2019


This revision was automatically updated to reflect the committed changes.
Closed by commit rL370661: [llvm-nm] - Add a test case for case when we dump a symbol that belongs to a… (authored by grimar, committed by ).
Herald added a project: LLVM.

Changed prior to commit:
  https://reviews.llvm.org/D67002?vs=218324&id=218358#toc

Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D67002/new/

https://reviews.llvm.org/D67002

Files:
  llvm/trunk/test/tools/llvm-nm/format-sysv-section.test


Index: llvm/trunk/test/tools/llvm-nm/format-sysv-section.test
===================================================================
--- llvm/trunk/test/tools/llvm-nm/format-sysv-section.test
+++ llvm/trunk/test/tools/llvm-nm/format-sysv-section.test
@@ -1,7 +1,7 @@
-# RUN: yaml2obj %s > %t.o
-# RUN: llvm-nm %t.o --format=sysv | FileCheck %s
+# RUN: yaml2obj --docnum=1 %s > %t1.o
+# RUN: llvm-nm %t1.o --format=sysv | FileCheck %s
 
-!ELF
+--- !ELF
 FileHeader:
   Class:   ELFCLASS64
   Data:    ELFDATA2LSB
@@ -33,3 +33,27 @@
 # CHECK-NEXT: symbol_absolute  {{.*}}|     |*ABS*
 # CHECK-NEXT: symbol_common    {{.*}}|     |*COM*
 # CHECK-NEXT: symbol_undefined {{.*}}|     |*UND*
+
+## Here we have a symbol that belongs to a section with a broken name
+## (sh_name offset goes past the end of the sections name string table).
+## We test that we can still print a reasonable output and don't crash/assert.
+
+# RUN: yaml2obj --docnum=2 %s > %t2.o
+# RUN: llvm-nm %t2.o --format=sysv | FileCheck %s --check-prefix=ERR
+
+# ERR: foo |0000000000000000| ? | NOTYPE|0000000000000000| |
+
+--- !ELF
+FileHeader:
+  Class:   ELFCLASS64
+  Data:    ELFDATA2LSB
+  Type:    ET_REL
+  Machine: EM_X86_64
+Sections:
+  - Name:  .broken
+    Type:  SHT_PROGBITS
+    Flags: [ SHF_ALLOC, SHF_EXECINSTR ]
+    ShName: 0xffff
+Symbols:
+  - Name:    foo
+    Section: .broken


-------------- next part --------------
A non-text attachment was scrubbed...
Name: D67002.218358.patch
Type: text/x-patch
Size: 1363 bytes
Desc: not available
URL: <http://lists.llvm.org/pipermail/llvm-commits/attachments/20190902/2ff6828e/attachment.bin>


More information about the llvm-commits mailing list