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Stop the BFD library from complaining about sections found inside debuginfo files. (PR 24717)

This commit is contained in:
Nick Clifton 2019-07-02 16:50:58 +01:00
parent 6f32c52f03
commit cbe88f3d8f
2 changed files with 81 additions and 3 deletions
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68
binutils-do-not-warn-about-debuginfo-files.patch Normal file
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@ -0,0 +1,68 @@
diff -rup binutils.orig/bfd/elf-bfd.h binutils-2.32/bfd/elf-bfd.h
--- binutils.orig/bfd/elf-bfd.h 2019-07-02 16:03:41.758007318 +0100
+++ binutils-2.32/bfd/elf-bfd.h 2019-07-02 16:04:02.025862020 +0100
@@ -2749,6 +2749,8 @@ extern bfd_vma elf64_r_sym (bfd_vma);
extern bfd_vma elf32_r_info (bfd_vma, bfd_vma);
extern bfd_vma elf32_r_sym (bfd_vma);
+extern bfd_boolean is_debuginfo_file (bfd *);
+
/* Large common section. */
extern asection _bfd_elf_large_com_section;
Only in binutils-2.32/bfd: elf-bfd.h.orig
diff -rup binutils.orig/bfd/elf.c binutils-2.32/bfd/elf.c
--- binutils.orig/bfd/elf.c 2019-07-02 16:03:42.101004858 +0100
+++ binutils-2.32/bfd/elf.c 2019-07-02 16:04:23.909705141 +0100
@@ -5807,6 +5807,35 @@ assign_file_positions_for_load_sections
return TRUE;
}
+/* Determine if a bfd is a debuginfo file. Unfortunately there
+ is no defined method for detecting such files, so we have to
+ use heuristics instead. */
+
+bfd_boolean
+is_debuginfo_file (bfd *abfd)
+{
+ if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_elf_flavour)
+ return FALSE;
+
+ Elf_Internal_Shdr **start_headers = elf_elfsections (abfd);
+ Elf_Internal_Shdr **end_headers = start_headers + elf_numsections (abfd);
+ Elf_Internal_Shdr **headerp;
+
+ for (headerp = start_headers; headerp < end_headers; headerp ++)
+ {
+ Elf_Internal_Shdr *header = * headerp;
+
+ /* Debuginfo files do not have any allocated SHT_PROGBITS sections.
+ The only allocated sections are SHT_NOBITS or SHT_NOTES. */
+ if ((header->sh_flags & SHF_ALLOC) == SHF_ALLOC
+ && header->sh_type != SHT_NOBITS
+ && header->sh_type != SHT_NOTE)
+ return FALSE;
+ }
+
+ return TRUE;
+}
+
/* Assign file positions for the other sections. */
static bfd_boolean
@@ -5840,7 +5869,13 @@ assign_file_positions_for_non_load_secti
BFD_ASSERT (hdr->sh_offset == hdr->bfd_section->filepos);
else if ((hdr->sh_flags & SHF_ALLOC) != 0)
{
- if (hdr->sh_size != 0)
+ if (hdr->sh_size != 0
+ /* PR 24717 - debuginfo files are known to be not strictly
+ compliant with the ELF standard. In particular they often
+ have .note.gnu.property sections that are outside of any
+ loadable segment. This is not a problem for such files,
+ so do not warn about them. */
+ && ! is_debuginfo_file (abfd))
_bfd_error_handler
/* xgettext:c-format */
(_("%pB: warning: allocated section `%s' not in segment"),
Only in binutils-2.32/bfd: elf.c.orig

16
binutils.spec
View File

@ -2,7 +2,7 @@
Summary: A GNU collection of binary utilities
Name: %{?cross}binutils%{?_with_debug:-debug}
Version: 2.32
Release: 16%{?dist}
Release: 17%{?dist}
License: GPLv3+
URL: https://sourceware.org/binutils
@ -216,14 +216,20 @@ Patch20: binutils-aarch64-gold-PLT-for-MOVW_ABS.patch
# Purpose: Stop gold from aborting when input sections with the same name
# have different flags.
# Lifetime: 2.33 (probably)
# Lifetime: Fixed in 2.33 (probably)
Patch21: binutils-gold-mismatched-section-flags.patch
# Purpose: Corrcect a memory corruption when generating relocs for build
# notes in the assembler.
# Lifetime: 2.33
# Lifetime: Fixed in 2.33
Patch22: binutils-gas-build-note-relocs.patch
# Purpose: Stop the BFD library from issueing warning messages about allocated
# sections being found outside of loadable segments, if they are
# found inside debuginfo files.
# Lifetime: Fixed in 2.33
Patch23: binutils-do-not-warn-about-debuginfo-files.patch
#----------------------------------------------------------------------------
Provides: bundled(libiberty)
@ -372,6 +378,7 @@ Conflicts: gcc-c++ < 4.0.0
%patch20 -p1
%patch21 -p1
%patch22 -p1
%patch23 -p1
# We cannot run autotools as there is an exact requirement of autoconf-2.59.
# FIXME - this is no longer true. Maybe try reinstating autotool use ?
@ -768,6 +775,9 @@ exit 0
#----------------------------------------------------------------------------
%changelog
* Tue Jul 02 2019 Nick Clifton <nickc@redhat.com> - 2.32-17
- Stop the BFD library from complaining about sections found inside debuginfo files. (PR 24717)
* Mon Jul 01 2019 Nick Clifton <nickc@redhat.com> - 2.32-16
- Stop gas from triggering a seg-fault when creating relocs for build notes. (PR 24748)