[llvm-objcopy] Rename --keep to --keep-section.

Summary:
llvm-objcopy/strip support `--keep` (for sections) and `--keep-symbols` (for symbols). For consistency and clarity, rename `--keep` to `--keep-section`.
In fact, for GNU compatability, -K is --keep-symbol, so it's weird that the alias `-K` is not the same as the short-ish `--keep`.

Reviewers: jakehehrlich, jhenderson, alexshap, MaskRay, espindola

Reviewed By: jakehehrlich, MaskRay

Subscribers: emaste, arichardson, llvm-commits

Differential Revision: https://reviews.llvm.org/D54477

llvm-svn: 346782

test/tools/llvm-objcopy/basic-keep.test

@@ -1,6 +1,6 @@
 # RUN: yaml2obj %s > %t
-# RUN: llvm-objcopy -strip-non-alloc -keep=.test %t %t2
-# RUN: llvm-strip --strip-all -keep=.test %t -o %t3
+# RUN: llvm-objcopy -strip-non-alloc -keep-section=.test %t %t2
+# RUN: llvm-strip --strip-all -keep-section=.test %t -o %t3
 # RUN: llvm-readobj -file-headers -sections %t2 | FileCheck %s
 # RUN: cmp %t2 %t3
 

test/tools/llvm-objcopy/explicit-keep-remove.test

@@ -1,5 +1,5 @@
 # RUN: yaml2obj %s > %t
-# RUN: llvm-objcopy -R=.test -keep=.test %t %t2
+# RUN: llvm-objcopy -R=.test -keep-section=.test %t %t2
 # RUN: llvm-readobj -file-headers -sections %t2 | FileCheck %s
 
 !ELF

test/tools/llvm-objcopy/keep-many.test

@@ -1,5 +1,5 @@
 # RUN: yaml2obj %s > %t
-# RUN: llvm-objcopy -strip-non-alloc -keep=.test -keep=.test3 %t %t2
+# RUN: llvm-objcopy -strip-non-alloc -keep-section=.test -keep-section=.test3 %t %t2
 # RUN: llvm-readobj -file-headers -sections %t2 | FileCheck %s
 
 !ELF

test/tools/llvm-objcopy/keep-only-keep.test

@@ -1,6 +1,6 @@
 # RUN: yaml2obj %s > %t
-# RUN: llvm-objcopy -keep=.test2 -only-keep=.test %t %t2
-# RUN: llvm-objcopy -j .test -keep=.test2 %t %t3
+# RUN: llvm-objcopy -keep-section=.test2 -only-keep=.test %t %t2
+# RUN: llvm-objcopy -j .test -keep-section=.test2 %t %t3
 # RUN: llvm-readobj -file-headers -sections %t2 | FileCheck %s
 # RUN: diff %t2 %t3
 

test/tools/llvm-objcopy/strip-sections-keep.test

@@ -1,5 +1,5 @@
 # RUN: yaml2obj %s > %t
-# RUN: llvm-objcopy -strip-sections -keep=.shstrtab %t %t2
+# RUN: llvm-objcopy -strip-sections -keep-section=.shstrtab %t %t2
 # RUN: od -Ax -t c %t2 | FileCheck %s
 
 !ELF

test/tools/llvm-symbolizer/split-debug.test

@@ -18,7 +18,7 @@
 #Build as : clang -g -O2 addr.c
 
 RUN: mkdir -p %t/.debug
-RUN: llvm-objcopy --keep=.debug_info %p/Inputs/addr.exe %t/.debug/addr
+RUN: llvm-objcopy --keep-section=.debug_info %p/Inputs/addr.exe %t/.debug/addr
 RUN: llvm-objcopy --strip-debug --add-gnu-debuglink=%t/.debug/addr %p/Inputs/addr.exe %t/addr.exe
 RUN: llvm-symbolizer -print-address -obj=%t/addr.exe < %p/Inputs/addr.inp | FileCheck %s
 

tools/llvm-objcopy/CopyConfig.cpp

@@ -305,8 +305,8 @@ DriverConfig parseObjcopyOptions(ArrayRef<const char *> ArgsArr) {
 
   for (auto Arg : InputArgs.filtered(OBJCOPY_remove_section))
     Config.ToRemove.push_back(Arg->getValue());
-  for (auto Arg : InputArgs.filtered(OBJCOPY_keep))
-    Config.Keep.push_back(Arg->getValue());
+  for (auto Arg : InputArgs.filtered(OBJCOPY_keep_section))
+    Config.KeepSection.push_back(Arg->getValue());
   for (auto Arg : InputArgs.filtered(OBJCOPY_only_keep))
     Config.OnlyKeep.push_back(Arg->getValue());
   for (auto Arg : InputArgs.filtered(OBJCOPY_add_section))
@@ -411,8 +411,8 @@ DriverConfig parseStripOptions(ArrayRef<const char *> ArgsArr) {
       !Config.StripAllGNU)
     Config.StripAll = true;
 
-  for (auto Arg : InputArgs.filtered(STRIP_keep))
-    Config.Keep.push_back(Arg->getValue());
+  for (auto Arg : InputArgs.filtered(STRIP_keep_section))
+    Config.KeepSection.push_back(Arg->getValue());
 
   for (auto Arg : InputArgs.filtered(STRIP_remove_section))
     Config.ToRemove.push_back(Arg->getValue());

tools/llvm-objcopy/CopyConfig.h

@@ -57,7 +57,7 @@ struct CopyConfig {
   // Repeated options
   std::vector<StringRef> AddSection;
   std::vector<StringRef> DumpSection;
-  std::vector<StringRef> Keep;
+  std::vector<StringRef> KeepSection;
   std::vector<StringRef> OnlyKeep;
   std::vector<StringRef> SymbolsToGlobalize;
   std::vector<StringRef> SymbolsToKeep;

tools/llvm-objcopy/ELF/ELFObjcopy.cpp

@@ -385,10 +385,10 @@ static void handleArgs(const CopyConfig &Config, Object &Obj,
     };
   }
 
-  if (!Config.Keep.empty()) {
+  if (!Config.KeepSection.empty()) {
     RemovePred = [&Config, RemovePred](const SectionBase &Sec) {
       // Explicitly keep these sections regardless of previous removes.
-      if (is_contained(Config.Keep, Sec.Name))
+      if (is_contained(Config.KeepSection, Sec.Name))
         return false;
       // Otherwise defer to RemovePred.
       return RemovePred(Sec);

tools/llvm-objcopy/ObjcopyOpts.td

@@ -76,7 +76,8 @@ defm rename_section
 defm redefine_symbol
     : Eq<"redefine-sym", "Change the name of a symbol old to new">,
       MetaVarName<"old=new">;
-defm keep : Eq<"keep", "Keep <section>">, MetaVarName<"section">;
+defm keep_section : Eq<"keep-section", "Keep <section>">,
+                    MetaVarName<"section">;
 defm only_keep : Eq<"only-keep", "Remove all but <section>">,
                  MetaVarName<"section">;
 def j : JoinedOrSeparate<["-"], "j">, Alias<only_keep>;

tools/llvm-objcopy/StripOpts.td

@@ -51,7 +51,8 @@ defm remove_section : Eq<"remove-section", "Remove <section>">,
                       MetaVarName<"section">;
 def R : JoinedOrSeparate<["-"], "R">, Alias<remove_section>;
 
-defm keep : Eq<"keep", "Keep <section>">, MetaVarName<"section">;
+defm keep_section : Eq<"keep-section", "Keep <section>">,
+                    MetaVarName<"section">;
 defm keep_symbol : Eq<"keep-symbol", "Do not remove symbol <symbol>">,
                    MetaVarName<"symbol">;
 def K : JoinedOrSeparate<["-"], "K">, Alias<keep_symbol>;