[yaml2obj] Remove --format option in favor of YAML tags
Summary:
Our YAML library's handling of tags isn't perfect, but it is good enough to get rid of the need for the --format argument to yaml2obj. This patch does exactly that.
Instead of requiring --format, it infers the format based on the tags found in the object file. The supported tags are:
!ELF
!COFF
!mach-o
!fat-mach-o
I have a corresponding patch that is quite large that fixes up all the in-tree test cases.
Reviewers: rafael, Bigcheese, compnerd, silvas
Subscribers: compnerd, llvm-commits
Differential Revision: http://reviews.llvm.org/D21711
llvm-svn: 273915
diff --git a/llvm/test/Object/yaml2obj-elf-file-headers.yaml b/llvm/test/Object/yaml2obj-elf-file-headers.yaml
index 2851701..4dfee5f 100644
--- a/llvm/test/Object/yaml2obj-elf-file-headers.yaml
+++ b/llvm/test/Object/yaml2obj-elf-file-headers.yaml
@@ -1,4 +1,4 @@
-# RUN: yaml2obj -format=elf %s | llvm-readobj -file-headers - | FileCheck %s
+# RUN: yaml2obj %s | llvm-readobj -file-headers - | FileCheck %s
!ELF
FileHeader:
Class: ELFCLASS64