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Accept and ignore R_BPF_64_NODYLD32 relocations. (#2245296)

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This commit is contained in:
Nick Clifton 2023-10-30 12:08:11 +00:00
parent e8094f532e
commit 329cf6426e
2 changed files with 46 additions and 1 deletions
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38
binutils-BPF-reloc-4.patch Normal file
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@ -0,0 +1,38 @@
diff -rup binutils.orig/bfd/bpf-reloc.def binutils-2.41/bfd/bpf-reloc.def
--- binutils.orig/bfd/bpf-reloc.def 2023-10-30 10:41:59.114273359 +0000
+++ binutils-2.41/bfd/bpf-reloc.def 2023-10-30 11:09:41.316109162 +0000
@@ -72,3 +72,20 @@
0xffffffff, /* src_mask */
0xffffffff, /* dst_mask */
true) /* pcrel_offset */
+
+ /* R_BPF_64_NODYLD32 is not used by GNU tools - but it is generated by LLVM.
+ We provide an entry here so that tools like strip can safely handle BPF
+ binaries generated by other tools. */
+ BPF_HOWTO (R_BPF_64_NODYLD32, /* type */
+ 0, /* rightshift */
+ 0, /* size */
+ 0, /* bitsize */
+ false, /* pc_relative */
+ 0, /* bitpos */
+ complain_overflow_dont, /* complain_on_overflow */
+ bpf_elf_generic_reloc, /* special_function */
+ "R_BPF_64_NODYLD32", /* name */
+ false, /* partial_inplace */
+ 0, /* src_mask */
+ 0, /* dst_mask */
+ false) /* pcrel_offset */
diff -rup binutils.orig/include/elf/bpf.h binutils-2.41/include/elf/bpf.h
--- binutils.orig/include/elf/bpf.h 2023-10-30 10:41:59.332273599 +0000
+++ binutils-2.41/include/elf/bpf.h 2023-10-30 10:59:44.475368448 +0000
@@ -30,8 +30,8 @@ START_RELOC_NUMBERS (elf_bpf_reloc_type)
RELOC_NUMBER (R_BPF_64_64, 1)
RELOC_NUMBER (R_BPF_64_ABS64, 2)
RELOC_NUMBER (R_BPF_64_ABS32, 3)
-/* R_BPF_64_NODYLD32 is not used by GNU tools.
- * It is kept in this file to remind that the value is already taken. */
+/* R_BPF_64_NODYLD32 is not used by GNU tools - but it is generated by LLVM.
+ It is kept in this file to remind that the value is already taken. */
RELOC_NUMBER (R_BPF_64_NODYLD32, 4)
RELOC_NUMBER (R_BPF_64_32, 10)
END_RELOC_NUMBERS (R_BPF_max)

9
binutils.spec
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@ -2,7 +2,7 @@
Summary: A GNU collection of binary utilities
Name: binutils%{?_with_debug:-debug}
Version: 2.41
Release: 8%{?dist}
Release: 9%{?dist}
License: GPL-3.0-or-later AND (GPL-3.0-or-later WITH Bison-exception-2.2) AND (LGPL-2.0-or-later WITH GCC-exception-2.0) AND BSD-3-Clause AND GFDL-1.3-or-later AND GPL-2.0-or-later LGPL-2.1-or-later AND LGPL-2.0-or-later
URL: https://sourceware.org/binutils
@ -270,6 +270,10 @@ Patch19: binutils-handle-corrupt-version-info.patch
# Lifetime: Fixed in 2.42
Patch20: binutils-execstack-error.patch
# Purpose: Accept and ignore R_BPF_64_NODYLD32 relocations.
# Lifetime: Fixed in 2.42
Patch21: binutils-BPF-reloc-4.patch
#----------------------------------------------------------------------------
Provides: bundled(libiberty)
@ -1275,6 +1279,9 @@ exit 0
#----------------------------------------------------------------------------
%changelog
* Mon Oct 30 2023 Nick Clifton <nickc@redhat.com> - 2.41-9
- Accept and ignore R_BPF_64_NODYLD32 relocations. (#2245296)
* Thu Oct 19 2023 Nick Clifton <nickc@redhat.com> - 2.41-8
- Add ability to turn execstack warnings into errors.
- Enable warnings for rsx segments.