Add an elf-dumper utility.

- Output format and some of the code stolen from macho-dump.
- Somewhat incomplete and probably buggy.
- Comes with a very basic test.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@113488 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 110 insertions, 0 deletions

diff --git a/test/MC/ELF/basic-elf.ll b/test/MC/ELF/basic-elf.ll
new file mode 100644
index 0000000000..abdce7e358
--- /dev/null
+++ b/test/MC/ELF/basic-elf.ll
@@ -0,0 +1,110 @@
+; RUN: llc -filetype=obj -mtriple i686-pc-linux-gnu %s -o - | elf-dump | FileCheck -check-prefix=32 %s
+; RUN: llc -filetype=obj -mtriple x86_64-pc-linux-gnu %s -o - | elf-dump | FileCheck -check-prefix=64 %s
+
+@.str1 = private constant [6 x i8] c"Hello\00"
+@.str2 = private constant [7 x i8] c"World!\00"
+
+define i32 @main() nounwind {
+  %1 = call i32 @puts(i8* getelementptr inbounds ([6 x i8]* @.str1, i32 0, i32 0))
+  %2 = call i32 @puts(i8* getelementptr inbounds ([7 x i8]* @.str2, i32 0, i32 0))
+  ret i32 0
+}
+
+declare i32 @puts(i8* nocapture) nounwind
+
+; 32: ('e_indent[EI_CLASS]', 1)
+; 32: ('e_indent[EI_DATA]', 1)
+; 32: ('e_indent[EI_VERSION]', 1)
+; 32: ('_sections', [
+; 32:   # Section 0
+; 32:   (('sh_name', 0) # ''
+
+; 32:   # '.text'
+; 32:   # '.rel.text'
+
+; 32:   ('_relocations', [
+; 32:     # Relocation 0
+; 32:     (('r_offset', 6)
+; 32:      ('r_type', 1)
+; 32:     ),
+; 32:     # Relocation 1
+; 32:     (('r_offset', 11)
+; 32:      ('r_type', 2)
+; 32:     ),
+; 32:     # Relocation 2
+; 32:     (('r_offset', 18)
+; 32:      ('r_type', 1)
+; 32:     ),
+; 32:     # Relocation 3
+; 32:     (('r_offset', 23)
+; 32:      ('r_type', 2)
+; 32:     ),
+; 32:   ])
+
+; 32: ('st_bind', 0)
+; 32: ('st_type', 3)
+
+; 32: ('st_bind', 0)
+; 32: ('st_type', 3)
+
+; 32: ('st_bind', 0)
+; 32: ('st_type', 3)
+
+; 32:   # 'main'
+; 32:   ('st_bind', 1)
+; 32-NEXT: ('st_type', 2)
+
+; 32:   # 'puts'
+; 32:   ('st_bind', 1)
+; 32-NEXT: ('st_type', 0)
+
+
+; 64: ('e_indent[EI_CLASS]', 2)
+; 64: ('e_indent[EI_DATA]', 1)
+; 64: ('e_indent[EI_VERSION]', 1)
+; 64: ('_sections', [
+; 64:   # Section 0
+; 64:   (('sh_name', 0) # ''
+
+; 64:   # '.text'
+; 64:   # '.rela.text'
+
+; 64:   ('_relocations', [
+; 64:     # Relocation 0
+; 64:     (('r_offset', 5)
+; 64:      ('r_type', 11)
+; 64:      ('r_addend', 0)
+; 64:     ),
+; 64:     # Relocation 1
+; 64:     (('r_offset', 10)
+; 64:      ('r_type', 2)
+; 64:      ('r_addend', -4)
+; 64:     ),
+; 64:     # Relocation 2
+; 64:     (('r_offset', 15)
+; 64:      ('r_type', 11)
+; 64:      ('r_addend', 6)
+; 64:     ),
+; 64:     # Relocation 3
+; 64:     (('r_offset', 20)
+; 64:      ('r_type', 2)
+; 64:      ('r_addend', -4)
+; 64:     ),
+; 64:   ])
+
+; 64: ('st_bind', 0)
+; 64: ('st_type', 3)
+
+; 64: ('st_bind', 0)
+; 64: ('st_type', 3)
+
+; 64: ('st_bind', 0)
+; 64: ('st_type', 3)
+
+; 64:   # 'main'
+; 64-NEXT: ('st_bind', 1)
+; 64-NEXT: ('st_type', 2)
+
+; 64:   # 'puts'
+; 64-NEXT: ('st_bind', 1)
+; 64-NEXT: ('st_type', 0)