[Bug ld/28597] New: SEGV. x86_64 EFI app

[christian.melki at t2data dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=28597

            Bug ID: 28597
           Summary: SEGV. x86_64 EFI app
           Product: binutils
           Version: 2.37
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: ld
          Assignee: unassigned at sourceware dot org
          Reporter: christian.melki at t2data dot com
  Target Milestone: ---

Summary:
--------
Linking a 64-bit EFI app (U-Boot) results in a SEGV.

Overview:
---------
Trying to build an custodian u-boot tree.
https://source.denx.de/u-boot/custodians/u-boot-dm/-/tree/efi-working
Commit fa89e29c4392dd526274f073067cd3268f22552a works around --whole-archive
just to continue the process, but with a bad link result.

Steps to reproduce:
-------------------
Build tree.
Back out --whole-archive workaround.

Actual results:
---------------
 Program received signal SIGSEGV, Segmentation fault.
0x00005555555d1a8f in elf_x86_64_finish_dynamic_sections
(output_bfd=0x5555557fefa0, info=0x5555557fa140 <link_info>) at
/src/binutils/bfd/elf64-x86-64.c:4676
4676        ->this_hdr.sh_entsize = htab->plt.plt_entry_size;
(gdb) bt
#0  0x00005555555d1a8f in elf_x86_64_finish_dynamic_sections
(output_bfd=0x5555557fefa0, info=0x5555557fa140 <link_info>) at
/src/binutils/bfd/elf64-x86-64.c:4676
#1  0x00005555556093ec in bfd_elf_final_link (abfd=<optimized out>,
info=<optimized out>) at /src/binutils/bfd/elflink.c:13116
#2  0x00005555555a4dd6 in ldwrite () at /src/binutils/ld/ldwrite.c:545
#3  0x000055555558c8f0 in main (argc=<optimized out>, argv=<optimized
out>) at /src/binutils/ld/ldmain.c:513

(gdb) p (struct bfd_elf_section_data
*)(htab->elf.splt->output_section)->used_by_bfd
$3 = (struct bfd_elf_section_data *) 0x0

This happens with earlier toolchains and ld.bfd versions too.

Expected results:
-----------------
Could be misuse, but ld shouldn't SEGV?

Additional information:
-----------------------
Found elf_i386_fake_section handling the COFF reloc object but no
similar function for x86_64. Am I missing something here? 
I tried adding a fake section handling for x86_64, but that didn't help.

-- 
You are receiving this mail because:
You are on the CC list for the bug.