Revert "[llvm-objcopy] Add --compress-sections"

This reverts commit 9e3b64b9f95aadf57568576712902a272fe66503.

Reason: Broke the UBSan buildbot. See the comments in the pull request
(https://github.com/llvm/llvm-project/pull/85036) for more information.

1 files changed, 0 insertions, 36 deletions

diff --git a/llvm/tools/llvm-objcopy/ObjcopyOptions.cpp b/llvm/tools/llvm-objcopy/ObjcopyOptions.cpp
index 70e8546..7269c51 100644
--- a/llvm/tools/llvm-objcopy/ObjcopyOptions.cpp
+++ b/llvm/tools/llvm-objcopy/ObjcopyOptions.cpp
@@ -736,42 +736,6 @@ objcopy::parseObjcopyOptions(ArrayRef<const char *> RawArgsArr,
       return createStringError(errc::invalid_argument, Reason);
   }
 
-  for (const auto *A : InputArgs.filtered(OBJCOPY_compress_sections)) {
-    SmallVector<StringRef, 0> Fields;
-    StringRef(A->getValue()).split(Fields, '=');
-    if (Fields.size() != 2 || Fields[1].empty()) {
-      return createStringError(
-          errc::invalid_argument,
-          A->getSpelling() +
-              ": parse error, not 'section-glob=[none|zlib|zstd]'");
-    }
-
-    auto Type = StringSwitch<DebugCompressionType>(Fields[1])
-                    .Case("zlib", DebugCompressionType::Zlib)
-                    .Case("zstd", DebugCompressionType::Zstd)
-                    .Default(DebugCompressionType::None);
-    if (Type == DebugCompressionType::None && Fields[1] != "none") {
-      return createStringError(
-          errc::invalid_argument,
-          "invalid or unsupported --compress-sections format: %s",
-          A->getValue());
-    }
-
-    auto &P = Config.compressSections.emplace_back();
-    P.second = Type;
-    auto Matcher =
-        NameOrPattern::create(Fields[0], SectionMatchStyle, ErrorCallback);
-    // =none allows overriding a previous =zlib or =zstd. Reject negative
-    // patterns, which would be confusing.
-    if (Matcher && !Matcher->isPositiveMatch()) {
-      return createStringError(
-          errc::invalid_argument,
-          "--compress-sections: negative pattern is unsupported");
-    }
-    if (Error E = P.first.addMatcher(std::move(Matcher)))
-      return std::move(E);
-  }
-
   Config.AddGnuDebugLink = InputArgs.getLastArgValue(OBJCOPY_add_gnu_debuglink);
   // The gnu_debuglink's target is expected to not change or else its CRC would
   // become invalidated and get rejected. We can avoid recalculating the