[ELF] - Created new "Invalid" subfolder for testcases.

[grimar]

Summary

This subfolder just like "linkerscript" subfolder keeps
testcases with invalid input. According to PR30540 it seems
we might have many new ones soon and I suggest to separate them
from regular testcases.

[davide]

LGTM, thanks

[grimar]

I also wonder if we want to move invalid-dse*.s and invalid-cie*.s tests into new folder. I did not do that because they do not use something special like yaml2obj or hexedited objects, so in my understanding it is hard to call them "invalid inputs".

[ruiu]

Please remove invalid from filenames if you move them under invalid directory.

Invalid directory should be invalid (starts with a lowercase).

lld/trunk/test/ELF/Invalid/eh-frame-hdr-no-out.s

+// REQUIRES: x86
+// RUN: not ld.lld --eh-frame-hdr %p/Inputs/invalid-cie-version2.elf -o %t >& %t.log
+// RUN: FileCheck %s < %t.log
+
+// invalid-cie-version2.elf contains unsupported version of CIE = 2.
+// CHECK: FDE version 1 or 3 expected, but got 2

lld/trunk/test/ELF/Invalid/invalid-elf.test

+# RUN: llvm-mc %s -o %t -filetype=obj -triple x86_64-pc-linux
+
+# RUN: not ld.lld %t %p/Inputs/invalid-data-encoding.a -o %t2 2>&1 | \
+# RUN:   FileCheck --check-prefix=INVALID-DATA-ENC %s
+# INVALID-DATA-ENC: invalid data encoding: test.o
+
+# RUN: not ld.lld %t %p/Inputs/invalid-file-class.a -o %t2 2>&1 | \
+# RUN:   FileCheck --check-prefix=INVALID-FILE-CLASS %s
+# INVALID-FILE-CLASS: invalid file class: test.o
+
+# RUN: not ld.lld %p/Inputs/invalid-symtab-sh_info.elf -o %t2 2>&1 | \
+# RUN:   FileCheck --check-prefix=INVALID-SYMTAB-SHINFO %s
+# INVALID-SYMTAB-SHINFO: invalid sh_info in symbol table
+
+# RUN: not ld.lld %p/Inputs/invalid-binding.elf -o %t2 2>&1 | \
+# RUN:   FileCheck --check-prefix=INVALID-BINDING %s
+# INVALID-BINDING: unexpected binding
+
+# RUN: not ld.lld %p/Inputs/invalid-section-index.elf -o %t2 2>&1 | \
+# RUN:   FileCheck --check-prefix=INVALID-SECTION-INDEX-LLD %s
+# INVALID-SECTION-INDEX-LLD: invalid section index
+
+# RUN: not ld.lld %p/Inputs/invalid-shstrndx.so -o %t2 2>&1 | \
+# RUN:   FileCheck --check-prefix=INVALID-SECTION-INDEX %s
+# INVALID-SECTION-INDEX: Invalid section index
+
+# RUN: not ld.lld %p/Inputs/invalid-multiple-eh-relocs.elf -o %t2 2>&1 | \
+# RUN:   FileCheck --check-prefix=INVALID-EH-RELOCS %s
+# INVALID-EH-RELOCS: multiple relocation sections to .eh_frame are not supported
+
+.long foo

lld/trunk/test/ELF/Invalid/merge-invalid-size.s

+// REQUIRES: x86
+// RUN: llvm-mc %s -o %t.o -filetype=obj -triple=x86_64-pc-linux
+// RUN: not ld.lld %t.o -o %t.so 2>&1 | FileCheck %s
+// CHECK: SHF_MERGE section size must be a multiple of sh_entsize
+
+// Test that we accept a zero sh_entsize.
+// RUN: ld.lld %p/Inputs/invalid-shentsize-zero.elf -o %t2
+
+.section .foo,"aM",@progbits,4
+.short 42