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| author | Nico Rieck <nico.rieck@gmail.com> | 2013-04-10 23:28:17 +0000 |
|---|---|---|
| committer | Nico Rieck <nico.rieck@gmail.com> | 2013-04-10 23:28:17 +0000 |
| commit | 18d49acdab79d6f0966b47182b6c3a2ba3d9f80f (patch) | |
| tree | 627374fd66e65ec88b6ba4f4cfd81c79cf6be35b /test/MC | |
| parent | bb5cbd86a4add5944c869836c507d419255d98dc (diff) | |
| download | external_llvm-18d49acdab79d6f0966b47182b6c3a2ba3d9f80f.zip external_llvm-18d49acdab79d6f0966b47182b6c3a2ba3d9f80f.tar.gz external_llvm-18d49acdab79d6f0966b47182b6c3a2ba3d9f80f.tar.bz2 | |
MC: Support COFF image-relative MCSymbolRefs
Add support for the COFF relocation types IMAGE_REL_I386_DIR32NB and
IMAGE_REL_AMD64_ADDR32NB for 32- and 64-bit respectively. These are
similar to normal 4-byte relocations except that they do not include
the base address of the image.
Image-relative relocations are used for debug information (32-bit) and
SEH unwind tables (64-bit).
A new MCSymbolRef variant called 'VK_COFF_IMGREL32' is introduced to
specify such relocations. For AT&T assembly, this variant can be accessed
using the symbol suffix '@imgrel'.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@179240 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/MC')
| -rw-r--r-- | test/MC/COFF/relocation-imgrel.s | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/test/MC/COFF/relocation-imgrel.s b/test/MC/COFF/relocation-imgrel.s new file mode 100644 index 0000000..ccd19ee --- /dev/null +++ b/test/MC/COFF/relocation-imgrel.s @@ -0,0 +1,29 @@ +// COFF Image-relative relocations +// +// Test that we produce image-relative relocations (IMAGE_REL_I386_DIR32NB +// and IMAGE_REL_AMD64_ADDR32NB) when accessing foo@imgrel. + +// RUN: llvm-mc -filetype=obj -triple i686-pc-win32 %s | llvm-readobj -r | FileCheck --check-prefix=W32 %s +// RUN: llvm-mc -filetype=obj -triple x86_64-pc-win32 %s | llvm-readobj -r | FileCheck --check-prefix=W64 %s + +.data +foo: + .long 1 + +.text + mov foo@IMGREL(%ebx, %ecx, 4), %eax + mov foo@imgrel(%ebx, %ecx, 4), %eax + +// W32: Relocations [ +// W32-NEXT: Section (1) .text { +// W32-NEXT: 0x3 IMAGE_REL_I386_DIR32NB foo +// W32-NEXT: 0xA IMAGE_REL_I386_DIR32NB foo +// W32-NEXT: } +// W32-NEXT: ] + +// W64: Relocations [ +// W64-NEXT: Section (1) .text { +// W64-NEXT: 0x4 IMAGE_REL_AMD64_ADDR32NB foo +// W64-NEXT: 0xC IMAGE_REL_AMD64_ADDR32NB foo +// W64-NEXT: } +// W64-NEXT: ] |