[lld] r302668 - [ELF] - Don't segfault when assigning non-calculatable absolute symbol value.

[Rafael Avila de Espindola via llvm-commits]

> ==============================================================================
> --- lld/trunk/test/ELF/linkerscript/early-assign-symbol.s (added)
> +++ lld/trunk/test/ELF/linkerscript/early-assign-symbol.s Wed May 10 09:23:33 2017
> @@ -0,0 +1,14 @@
> +# REQUIRES: x86
> +# RUN: llvm-mc -filetype=obj -triple=x86_64-unknown-linux %s -o %t.o
> +
> +# RUN: echo "SECTIONS { aaa = 1 + ABSOLUTE(foo - 1); }" > %t1.script
> +# RUN: not ld.lld -o %t --script %t1.script %t.o 2>&1 | FileCheck %s
> +
> +# RUN: echo "SECTIONS { aaa = ABSOLUTE(foo - 1) + 1; }" > %t2.script
> +# RUN: not ld.lld -o %t --script %t2.script %t.o 2>&1 | FileCheck %s
> +
> +# CHECK: error: unable to evaluate expression: input section .text has no output section assigned
> +
> +.section .text
> +.globl foo
> +foo:

This depends on where we place the orphan .text, no? I would suggest
making that explicit in the test.

Cheers,
Rafael