From e22ca2f593aa8fd392f1ac4f8dd104bc56d0d100 Mon Sep 17 00:00:00 2001
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From: Ezra Cooper <ezra@qumulo.com>
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Date: Thu, 21 Jun 2018 11:07:35 -0700
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Subject: [PATCH] Fix issue #66 by ignoring the first section header when
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sorting, and not overwriting NOBITS entries.
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Fetch from: https://github.com/NixOS/patchelf/commit/52ab908394958a2a5d0476e306e2cad4da4fdeae
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Backported to v0.9
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Signed-off-by: Conrad Ratschan <conrad.ratschan@rockwellcollins.com>
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---
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src/patchelf.cc | 5 +++--
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1 file changed, 3 insertions(+), 2 deletions(-)
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diff --git a/src/patchelf.cc b/src/patchelf.cc
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index c025ae2..fa2945e 100644
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--- a/src/patchelf.cc
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+++ b/src/patchelf.cc
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@@ -435,7 +435,7 @@ void ElfFile<ElfFileParamNames>::sortShdrs()
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/* Sort the sections by offset. */
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CompShdr comp;
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comp.elfFile = this;
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- sort(shdrs.begin(), shdrs.end(), comp);
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+ sort(shdrs.begin() + 1, shdrs.end(), comp);
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/* Restore the sh_link mappings. */
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for (unsigned int i = 1; i < rdi(hdr->e_shnum); ++i)
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@@ -586,7 +586,8 @@ void ElfFile<ElfFileParamNames>::writeReplacedSections(Elf_Off & curOff,
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{
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string sectionName = i->first;
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Elf_Shdr & shdr = findSection(sectionName);
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- memset(contents + rdi(shdr.sh_offset), 'X', rdi(shdr.sh_size));
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+ if (shdr.sh_type != SHT_NOBITS)
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+ memset(contents + rdi(shdr.sh_offset), 'X', rdi(shdr.sh_size));
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}
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for (ReplacedSections::iterator i = replacedSections.begin();
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--
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2.17.1
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