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-rw-r--r--contrib/llvm-project/llvm/tools/llvm-objcopy/ELF/Object.cpp19
1 files changed, 10 insertions, 9 deletions
diff --git a/contrib/llvm-project/llvm/tools/llvm-objcopy/ELF/Object.cpp b/contrib/llvm-project/llvm/tools/llvm-objcopy/ELF/Object.cpp
index ad53c75663ec..5e5ed95de743 100644
--- a/contrib/llvm-project/llvm/tools/llvm-objcopy/ELF/Object.cpp
+++ b/contrib/llvm-project/llvm/tools/llvm-objcopy/ELF/Object.cpp
@@ -2254,27 +2254,28 @@ Error BinaryWriter::finalize() {
OrderedSegments.erase(End, std::end(OrderedSegments));
// Compute the section LMA based on its sh_offset and the containing segment's
- // p_offset and p_paddr. Also compute the minimum LMA of all sections as
- // MinAddr. In the output, the contents between address 0 and MinAddr will be
- // skipped.
+ // p_offset and p_paddr. Also compute the minimum LMA of all non-empty
+ // sections as MinAddr. In the output, the contents between address 0 and
+ // MinAddr will be skipped.
uint64_t MinAddr = UINT64_MAX;
for (SectionBase &Sec : Obj.allocSections()) {
if (Sec.ParentSegment != nullptr)
Sec.Addr =
Sec.Offset - Sec.ParentSegment->Offset + Sec.ParentSegment->PAddr;
- MinAddr = std::min(MinAddr, Sec.Addr);
+ if (Sec.Size > 0)
+ MinAddr = std::min(MinAddr, Sec.Addr);
}
// Now that every section has been laid out we just need to compute the total
// file size. This might not be the same as the offset returned by
// layoutSections, because we want to truncate the last segment to the end of
- // its last section, to match GNU objcopy's behaviour.
+ // its last non-empty section, to match GNU objcopy's behaviour.
TotalSize = 0;
- for (SectionBase &Sec : Obj.allocSections()) {
- Sec.Offset = Sec.Addr - MinAddr;
- if (Sec.Type != SHT_NOBITS)
+ for (SectionBase &Sec : Obj.allocSections())
+ if (Sec.Type != SHT_NOBITS && Sec.Size > 0) {
+ Sec.Offset = Sec.Addr - MinAddr;
TotalSize = std::max(TotalSize, Sec.Offset + Sec.Size);
- }
+ }
if (Error E = Buf.allocate(TotalSize))
return E;