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walkRela(): explain sh_link and sh_info.

Xavier G authored on 17/08/2015 21:41:10
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@@ -3010,6 +3010,24 @@ sub walkRela {
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 	my $struct = ($section->{'_type'} eq 'SHT_RELA') ? 'rela' : 'rel';
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 	my $rela_info = $elf_structures->{$struct}->{$arch};
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+	# Explain sh_link.
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+	my $linked_section = displayLinkedSection($ind, $elf_data, $section_index);
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+	if (defined($linked_section) && $linked_section->{'_type'} eq 'SHT_DYNSYM') {
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+		sayf($ind + 1, 'This is the associated symbol table.');
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+	}
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+
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+	# Explain sh_info.
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+	my $target_section = getLinkedSection($elf_data, $section_index, 'sh_info');
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+	if (defined($target_section)) {
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+		sayf(
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+			$ind,
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+			'Relocations described in this section apply to section #%s: %s, of type %s.',
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+			colored($target_section->{'_index'}, 'index'),
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+			colored($target_section->{'_name'}, 'name'),
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+			colored($target_section->{'_type'}, 'name')
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+		);
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+	}
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+
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 	# Iterate over relocation entries.
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 	for (my $i = 0; $i < $count; ++ $i) {
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 		sayf($ind, '[%d/%d] Relocation at index #%s:', $i + 1, $count, $i);