[llvm] [llvm-objcopy] Add change-section-lma *+/-offset (PR #95431)

[Eleanor Bonnici via llvm-commits]

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@@ -670,6 +670,13 @@ static Error handleArgs(const CommonConfig &Config, const ELFConfig &ELFConfig,
     }
   }
 
+  if (Config.ChangeSectionLMAValAll != 0) {
+    for (auto &Seg : Obj.segments()) {
+      if (Seg.FileSize > 0)
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eleanor-arm wrote:

The updated commit message explains GNU behaviour better. This seems closest to what GNU objcopy does when it works. Overall the GNU behaviour is too erratic to extract from it what the tool is designed to do. 

https://github.com/llvm/llvm-project/pull/95431