[PATCH] bpf: Added linker support for R_BPF_64_NODYLD32.

[Cupertino Miranda <cupertino.miranda@oracle.com>]

Hi everyone,

This patch is in context of Nick Cliftons request in thread:
  https://sourceware.org/pipermail/binutils/2023-October/130194.html
due to bug reported in:
  https://bugzilla.redhat.com/show_bug.cgi?id=2245296

For the time being the linker is not used in BPF infrastructure.
Considering that and without a proper way to validate the code, the
following patch is what I think is missing in order to add linker
support for the particular relocation.

Looking forward to your review.

Best regards,
Cupertino

This patch adds linker support to patch R_BPF_64_NODYLD32 relocations.
The implementation was based on comments and code in LLVM, as the GNU
toolchain does not uses this relocation type.
---
 bfd/elf64-bpf.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/bfd/elf64-bpf.c b/bfd/elf64-bpf.c
index aefad7da5ac..5820dd3d7d4 100644
--- a/bfd/elf64-bpf.c
+++ b/bfd/elf64-bpf.c
@@ -276,6 +276,7 @@ bpf_elf_relocate_section (bfd *output_bfd ATTRIBUTE_UNUSED,
           }
 	case R_BPF_64_ABS64:
 	case R_BPF_64_ABS32:
+	case R_BPF_64_NODYLD32:
 	  {
 	    addend = bfd_get (howto->bitsize, input_bfd, where);
 	    relocation += addend;
-- 
2.30.2