Summary:
Some machine-type-neutral object files containing only undefined symbols
actually do exist in the Windows standard library. Need to recognize them
as COFF files.
Reviewers: Bigcheese
CC: llvm-commits
Differential Revision: http://llvm-reviews.chandlerc.com/D2164
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@194734
91177308-0d34-0410-b5e6-
96231b3b80d8
if (Magic.size() >= sizeof(Expected) &&
memcmp(Magic.data(), Expected, sizeof(Expected)) == 0)
return file_magic::windows_resource;
+ // 0x0000 = COFF unknown machine type
+ if (Magic[1] == 0)
+ return file_magic::coff_object;
break;
}
case 0xDE: // 0x0B17C0DE = BC wraper
RUN: | FileCheck %s -check-prefix ELF32
RUN: llvm-readobj -h %p/Inputs/trivial.obj.elf-x86-64 \
RUN: | FileCheck %s -check-prefix ELF64
+RUN: llvm-readobj -h %p/Inputs/magic.coff-unknown \
+RUN: | FileCheck %s -check-prefix COFF-UNKNOWN
COFF32: File: {{(.*[/\\])?}}trivial.obj.coff-i386
COFF32-NEXT: Format: COFF-i386
PE32-NEXT: ReservedSize: 0x0
PE32-NEXT: }
PE32-NEXT: }
+
+COFF-UNKNOWN: Format: COFF-<unknown arch>
+COFF-UNKNOWN-NEXT: Arch: unknown
+COFF-UNKNOWN-NEXT: AddressSize: 32bit
+COFF-UNKNOWN-NEXT: ImageFileHeader {
+COFF-UNKNOWN-NEXT: Machine: IMAGE_FILE_MACHINE_UNKNOWN (0x0)
+COFF-UNKNOWN-NEXT: SectionCount: 3
+COFF-UNKNOWN-NEXT: TimeDateStamp: 2013-11-14 21:19:28 (0x52853E60)
+COFF-UNKNOWN-NEXT: PointerToSymbolTable: 0xF8
+COFF-UNKNOWN-NEXT: SymbolCount: 11
+COFF-UNKNOWN-NEXT: OptionalHeaderSize: 0
+COFF-UNKNOWN-NEXT: Characteristics [ (0x0)
+COFF-UNKNOWN-NEXT: ]
+COFF-UNKNOWN-NEXT: }
const char archive[] = "!<arch>\x0A";
const char bitcode[] = "\xde\xc0\x17\x0b";
+const char coff_object[] = "\x00\x00......";
const char elf_relocatable[] = { 0x7f, 'E', 'L', 'F', 1, 2, 1, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 1 };
const char macho_universal_binary[] = "\xca\xfe\xba\xbe...\0x00";
{ #magic, magic, sizeof(magic), fs::file_magic::magic }
DEFINE(archive),
DEFINE(bitcode),
+ DEFINE(coff_object),
DEFINE(elf_relocatable),
DEFINE(macho_universal_binary),
DEFINE(macho_object),