85 lines
2.9 KiB
Diff
85 lines
2.9 KiB
Diff
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From FEDORA_PATCHES Mon Sep 17 00:00:00 2001
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From: Nick Clifton <nickc@redhat.com>
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Date: Tue, 2 Jul 2019 15:58:29 +0100
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Subject: gdb-rhbz1553086-binutils-warning-loadable-section-outside-elf.patch
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;; Fix 'gdb: warning: Loadable section ".note.gnu.property" outside of
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;; ELF segments' (Nick Clifton, RH BZ 1553086).
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;; This is a binutils patch.
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Stop the BFD library from issuing a warning message when processing allocated sections in debuginfo files that lie outside of any loadable segment.
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PR 24717
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* elf.c (is_debuginfo_file): New function.
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(assign_file_positions_for_non_load_sections): Do not warn about
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allocated sections outside of loadable segments if they are found
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in a debuginfo file.
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* elf-bfd.h (is_debuginfo_file): Prototype.
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diff --git a/bfd/elf-bfd.h b/bfd/elf-bfd.h
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--- a/bfd/elf-bfd.h
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+++ b/bfd/elf-bfd.h
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@@ -2751,6 +2751,8 @@ extern bfd_vma elf64_r_sym (bfd_vma);
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extern bfd_vma elf32_r_info (bfd_vma, bfd_vma);
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extern bfd_vma elf32_r_sym (bfd_vma);
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+extern bfd_boolean is_debuginfo_file (bfd *);
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+
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/* Large common section. */
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extern asection _bfd_elf_large_com_section;
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diff --git a/bfd/elf.c b/bfd/elf.c
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--- a/bfd/elf.c
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+++ b/bfd/elf.c
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@@ -5800,6 +5800,35 @@ assign_file_positions_for_load_sections (bfd *abfd,
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return TRUE;
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}
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+/* Determine if a bfd is a debuginfo file. Unfortunately there
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+ is no defined method for detecting such files, so we have to
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+ use heuristics instead. */
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+
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+bfd_boolean
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+is_debuginfo_file (bfd *abfd)
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+{
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+ if (abfd == NULL || bfd_get_flavour (abfd) != bfd_target_elf_flavour)
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+ return FALSE;
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+
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+ Elf_Internal_Shdr **start_headers = elf_elfsections (abfd);
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+ Elf_Internal_Shdr **end_headers = start_headers + elf_numsections (abfd);
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+ Elf_Internal_Shdr **headerp;
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+
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+ for (headerp = start_headers; headerp < end_headers; headerp ++)
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+ {
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+ Elf_Internal_Shdr *header = * headerp;
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+
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+ /* Debuginfo files do not have any allocated SHT_PROGBITS sections.
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+ The only allocated sections are SHT_NOBITS or SHT_NOTES. */
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+ if ((header->sh_flags & SHF_ALLOC) == SHF_ALLOC
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+ && header->sh_type != SHT_NOBITS
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+ && header->sh_type != SHT_NOTE)
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+ return FALSE;
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+ }
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+
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+ return TRUE;
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+}
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+
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/* Assign file positions for the other sections. */
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static bfd_boolean
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@@ -5833,7 +5862,13 @@ assign_file_positions_for_non_load_sections (bfd *abfd,
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BFD_ASSERT (hdr->sh_offset == hdr->bfd_section->filepos);
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else if ((hdr->sh_flags & SHF_ALLOC) != 0)
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{
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- if (hdr->sh_size != 0)
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+ if (hdr->sh_size != 0
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+ /* PR 24717 - debuginfo files are known to be not strictly
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+ compliant with the ELF standard. In particular they often
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+ have .note.gnu.property sections that are outside of any
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+ loadable segment. This is not a problem for such files,
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+ so do not warn about them. */
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+ && ! is_debuginfo_file (abfd))
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_bfd_error_handler
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/* xgettext:c-format */
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(_("%pB: warning: allocated section `%s' not in segment"),
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