tree 1de8838ca18148ad856917bea07fc466b08a1f1d
parent 97c767972b4a68f2537fe5d0d30e8b668bacafbf
author Reid Kleckner <rnk@google.com> 1541702297 +0000
committer Reid Kleckner <rnk@google.com> 1541702297 +0000

[COFF] Improve relocation against discarded section error

Summary:
Reuse the "referenced by" note diagnostic code that we already use for
undefined symbols. In my case, it turned this:
  lld-link: error: relocation against symbol in discarded section: .text
  lld-link: error: relocation against symbol in discarded section: .text
  ...

Into this:
  lld-link: error: relocation against symbol in discarded section: .text
  >>> referenced by libANGLE.lib(CompilerGL.obj):(.SCOVP$M)
  >>> referenced by libANGLE.lib(CompilerGL.obj):(.SCOVP$M)
  ...

  lld-link: error: relocation against symbol in discarded section: .text
  >>> referenced by obj/third_party/angle/libGLESv2/entry_points_egl_ext.obj:(.SCOVP$M)
  >>> referenced by obj/third_party/angle/libGLESv2/entry_points_egl_ext.obj:(.SCOVP$M)
  ...

I think the new output is more useful.

Reviewers: ruiu, pcc

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D54240

git-svn-id: https://llvm.org/svn/llvm-project/lld/trunk@346427 91177308-0d34-0410-b5e6-96231b3b80d8