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-rw-r--r--llvm/tools/llvm-objcopy/COFF/COFFObjcopy.cpp9
-rw-r--r--llvm/tools/llvm-objcopy/CopyConfig.cpp26
-rw-r--r--llvm/tools/llvm-objcopy/CopyConfig.h1
-rw-r--r--llvm/tools/llvm-objcopy/ELF/ELFObjcopy.cpp8
-rw-r--r--llvm/tools/llvm-objcopy/MachO/MachOObjcopy.cpp15
-rw-r--r--llvm/tools/llvm-objcopy/ObjcopyOpts.td4
6 files changed, 52 insertions, 11 deletions
diff --git a/llvm/tools/llvm-objcopy/COFF/COFFObjcopy.cpp b/llvm/tools/llvm-objcopy/COFF/COFFObjcopy.cpp
index 28de0eb6efd..60f70d71349 100644
--- a/llvm/tools/llvm-objcopy/COFF/COFFObjcopy.cpp
+++ b/llvm/tools/llvm-objcopy/COFF/COFFObjcopy.cpp
@@ -208,10 +208,11 @@ static Error handleArgs(const CopyConfig &Config, Object &Obj) {
!Config.SymbolsToGlobalize.empty() || !Config.SymbolsToKeep.empty() ||
!Config.SymbolsToLocalize.empty() || !Config.SymbolsToWeaken.empty() ||
!Config.SymbolsToKeepGlobal.empty() || !Config.SectionsToRename.empty() ||
- !Config.SetSectionFlags.empty() || !Config.SymbolsToRename.empty() ||
- Config.ExtractDWO || Config.KeepFileSymbols || Config.LocalizeHidden ||
- Config.PreserveDates || Config.StripDWO || Config.StripNonAlloc ||
- Config.StripSections || Config.Weaken || Config.DecompressDebugSections ||
+ !Config.SetSectionAlignment.empty() || !Config.SetSectionFlags.empty() ||
+ !Config.SymbolsToRename.empty() || Config.ExtractDWO ||
+ Config.KeepFileSymbols || Config.LocalizeHidden || Config.PreserveDates ||
+ Config.StripDWO || Config.StripNonAlloc || Config.StripSections ||
+ Config.Weaken || Config.DecompressDebugSections ||
Config.DiscardMode == DiscardType::Locals ||
!Config.SymbolsToAdd.empty() || Config.EntryExpr) {
return createStringError(llvm::errc::invalid_argument,
diff --git a/llvm/tools/llvm-objcopy/CopyConfig.cpp b/llvm/tools/llvm-objcopy/CopyConfig.cpp
index 99291660a49..9b51b745d50 100644
--- a/llvm/tools/llvm-objcopy/CopyConfig.cpp
+++ b/llvm/tools/llvm-objcopy/CopyConfig.cpp
@@ -155,6 +155,25 @@ static Expected<SectionRename> parseRenameSectionValue(StringRef FlagValue) {
return SR;
}
+static Expected<std::pair<StringRef, uint64_t>>
+parseSetSectionAlignment(StringRef FlagValue) {
+ if (!FlagValue.contains('='))
+ return createStringError(
+ errc::invalid_argument,
+ "bad format for --set-section-alignment: missing '='");
+ auto Split = StringRef(FlagValue).split('=');
+ if (Split.first.empty())
+ return createStringError(
+ errc::invalid_argument,
+ "bad format for --set-section-alignment: missing section name");
+ uint64_t NewAlign;
+ if (Split.second.getAsInteger(0, NewAlign))
+ return createStringError(errc::invalid_argument,
+ "invalid alignment for --set-section-alignment: '%s'",
+ Split.second.str().c_str());
+ return std::make_pair(Split.first, NewAlign);
+}
+
static Expected<SectionFlagsUpdate>
parseSetSectionFlagValue(StringRef FlagValue) {
if (!StringRef(FlagValue).contains('='))
@@ -489,6 +508,13 @@ Expected<DriverConfig> parseObjcopyOptions(ArrayRef<const char *> ArgsArr) {
"multiple renames of section '%s'",
SR->OriginalName.str().c_str());
}
+ for (auto Arg : InputArgs.filtered(OBJCOPY_set_section_alignment)) {
+ Expected<std::pair<StringRef, uint64_t>> NameAndAlign =
+ parseSetSectionAlignment(Arg->getValue());
+ if (!NameAndAlign)
+ return NameAndAlign.takeError();
+ Config.SetSectionAlignment[NameAndAlign->first] = NameAndAlign->second;
+ }
for (auto Arg : InputArgs.filtered(OBJCOPY_set_section_flags)) {
Expected<SectionFlagsUpdate> SFU =
parseSetSectionFlagValue(Arg->getValue());
diff --git a/llvm/tools/llvm-objcopy/CopyConfig.h b/llvm/tools/llvm-objcopy/CopyConfig.h
index 85d660407f0..745af0ce480 100644
--- a/llvm/tools/llvm-objcopy/CopyConfig.h
+++ b/llvm/tools/llvm-objcopy/CopyConfig.h
@@ -161,6 +161,7 @@ struct CopyConfig {
// Map options
StringMap<SectionRename> SectionsToRename;
+ StringMap<uint64_t> SetSectionAlignment;
StringMap<SectionFlagsUpdate> SetSectionFlags;
StringMap<StringRef> SymbolsToRename;
diff --git a/llvm/tools/llvm-objcopy/ELF/ELFObjcopy.cpp b/llvm/tools/llvm-objcopy/ELF/ELFObjcopy.cpp
index 2f29d90f5be..dd6a7d7e14b 100644
--- a/llvm/tools/llvm-objcopy/ELF/ELFObjcopy.cpp
+++ b/llvm/tools/llvm-objcopy/ELF/ELFObjcopy.cpp
@@ -670,6 +670,14 @@ static Error handleArgs(const CopyConfig &Config, Object &Obj,
}
}
+ if (!Config.SetSectionAlignment.empty()) {
+ for (SectionBase &Sec : Obj.sections()) {
+ auto I = Config.SetSectionAlignment.find(Sec.Name);
+ if (I != Config.SetSectionAlignment.end())
+ Sec.Align = I->second;
+ }
+ }
+
if (!Config.SetSectionFlags.empty()) {
for (auto &Sec : Obj.sections()) {
const auto Iter = Config.SetSectionFlags.find(Sec.Name);
diff --git a/llvm/tools/llvm-objcopy/MachO/MachOObjcopy.cpp b/llvm/tools/llvm-objcopy/MachO/MachOObjcopy.cpp
index a52931e469f..6d586e7d73f 100644
--- a/llvm/tools/llvm-objcopy/MachO/MachOObjcopy.cpp
+++ b/llvm/tools/llvm-objcopy/MachO/MachOObjcopy.cpp
@@ -31,13 +31,14 @@ static Error handleArgs(const CopyConfig &Config, Object &Obj) {
!Config.SymbolsToKeepGlobal.empty() || !Config.SectionsToRename.empty() ||
!Config.SymbolsToRename.empty() ||
!Config.UnneededSymbolsToRemove.empty() ||
- !Config.SetSectionFlags.empty() || !Config.ToRemove.empty() ||
- Config.ExtractDWO || Config.KeepFileSymbols || Config.LocalizeHidden ||
- Config.PreserveDates || Config.StripDWO || Config.StripNonAlloc ||
- Config.StripSections || Config.Weaken || Config.DecompressDebugSections ||
- Config.StripDebug || Config.StripNonAlloc || Config.StripSections ||
- Config.StripUnneeded || Config.DiscardMode != DiscardType::None ||
- !Config.SymbolsToAdd.empty() || Config.EntryExpr) {
+ !Config.SetSectionAlignment.empty() || !Config.SetSectionFlags.empty() ||
+ !Config.ToRemove.empty() || Config.ExtractDWO || Config.KeepFileSymbols ||
+ Config.LocalizeHidden || Config.PreserveDates || Config.StripDWO ||
+ Config.StripNonAlloc || Config.StripSections || Config.Weaken ||
+ Config.DecompressDebugSections || Config.StripDebug ||
+ Config.StripNonAlloc || Config.StripSections || Config.StripUnneeded ||
+ Config.DiscardMode != DiscardType::None || !Config.SymbolsToAdd.empty() ||
+ Config.EntryExpr) {
return createStringError(llvm::errc::invalid_argument,
"option not supported by llvm-objcopy for MachO");
}
diff --git a/llvm/tools/llvm-objcopy/ObjcopyOpts.td b/llvm/tools/llvm-objcopy/ObjcopyOpts.td
index 87b678a8b16..9e6b6f0005c 100644
--- a/llvm/tools/llvm-objcopy/ObjcopyOpts.td
+++ b/llvm/tools/llvm-objcopy/ObjcopyOpts.td
@@ -75,6 +75,10 @@ defm add_section
"Make a section named <section> with the contents of <file>.">,
MetaVarName<"section=file">;
+defm set_section_alignment
+ : Eq<"set-section-alignment", "Set alignment for a given section.">,
+ MetaVarName<"section=align">;
+
defm set_section_flags
: Eq<"set-section-flags",
"Set section flags for a given section. Flags supported for GNU "
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