Object, COFF: Tighten the object file parser

We were a little lax in a few areas:
- We pretended that import libraries were like any old COFF file, they
  are not.  In fact, they aren't really COFF files at all, we should
  probably grow some specialized functionality to handle them smarter.
- Our symbol iterators were more than happy to attempt to go past the
  end of the symbol table if you had a symbol with a bad list of
  auxiliary symbols.

llvm-svn: 222124

1 files changed, 4 insertions, 5 deletions

diff --git a/llvm/test/tools/llvm-readobj/file-headers.test b/llvm/test/tools/llvm-readobj/file-headers.test
index 1627eb76569..a19cb4bb2af 100644
--- a/llvm/test/tools/llvm-readobj/file-headers.test
+++ b/llvm/test/tools/llvm-readobj/file-headers.test
@@ -335,12 +335,11 @@ COFF-IMPORTLIB-NEXT: Arch: unknown
 COFF-IMPORTLIB-NEXT: AddressSize: 32bit
 COFF-IMPORTLIB-NEXT: ImageFileHeader {
 COFF-IMPORTLIB-NEXT:   Machine: IMAGE_FILE_MACHINE_UNKNOWN (0x0)
-COFF-IMPORTLIB-NEXT:   SectionCount: 65535
+COFF-IMPORTLIB-NEXT:   SectionCount: 0
 COFF-IMPORTLIB-NEXT:   TimeDateStamp: 1970-09-09 19:52:32 (0x14C0000)
-COFF-IMPORTLIB-NEXT:   PointerToSymbolTable: 0x528542EB
-COFF-IMPORTLIB-NEXT:   SymbolCount: 20
+COFF-IMPORTLIB-NEXT:   PointerToSymbolTable: 0x0
+COFF-IMPORTLIB-NEXT:   SymbolCount: 0
 COFF-IMPORTLIB-NEXT:   OptionalHeaderSize: 0
-COFF-IMPORTLIB-NEXT:   Characteristics [ (0x8)
-COFF-IMPORTLIB-NEXT:     IMAGE_FILE_LOCAL_SYMS_STRIPPED (0x8)
+COFF-IMPORTLIB-NEXT:   Characteristics [ (0x0)
 COFF-IMPORTLIB-NEXT:   ]
 COFF-IMPORTLIB-NEXT: }