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|
Allow to fully disable LTO
--- ld64-236.3/src/ld/InputFiles.cpp
+++ ld64-236.3/src/ld/InputFiles.cpp
@@ -59,7 +59,9 @@
#include "macho_relocatable_file.h"
#include "macho_dylib_file.h"
#include "archive_file.h"
+#ifdef LTO
#include "lto_file.h"
+#endif
#include "opaque_section_file.h"
#include "MachOFileAbstraction.hpp"
#include "Snapshot.h"
@@ -187,9 +189,11 @@
if ( result != NULL )
return result;
+#ifdef LTO
result = lto::archName(p, len);
if ( result != NULL )
return result;
+#endif
if ( strncmp((const char*)p, "!<arch>\n", 8) == 0 )
return "archive";
@@ -292,6 +296,7 @@
return objResult;
}
+#ifdef LTO
// see if it is an llvm object file
objResult = lto::parse(p, len, info.path, info.modTime, info.ordinal, _options.architecture(), _options.subArchitecture(), _options.logAllFiles(), _options.verboseOptimizationHints());
if ( objResult != NULL ) {
@@ -299,6 +304,7 @@
OSAtomicIncrement32(&_totalObjectLoaded);
return objResult;
}
+#endif
// see if it is a dynamic library
ld::dylib::File* dylibResult = mach_o::dylib::parse(p, len, info.path, info.modTime, _options, info.ordinal, info.options.fBundleLoader, indirectDylib);
@@ -322,6 +328,7 @@
return archiveResult;
}
+#ifdef LTO
// does not seem to be any valid linker input file, check LTO misconfiguration problems
if ( lto::archName((uint8_t*)p, len) != NULL ) {
if ( lto::libLTOisLoaded() ) {
@@ -349,6 +356,7 @@
throwf("could not process llvm bitcode object file, because %s could not be loaded", libLTO);
}
}
+#endif
// error handling
if ( ((fat_header*)p)->magic == OSSwapBigToHostInt32(FAT_MAGIC) ) {
--- ld64-236.3/src/ld/ld.cpp
+++ ld64-236.3/src/ld/ld.cpp
@@ -91,7 +91,9 @@
#include "parsers/archive_file.h"
#include "parsers/macho_relocatable_file.h"
#include "parsers/macho_dylib_file.h"
+#ifdef LTO
#include "parsers/lto_file.h"
+#endif
#include "parsers/opaque_section_file.h"
--- ld64-236.3/src/ld/Options.cpp
+++ ld64-236.3/src/ld/Options.cpp
@@ -41,10 +41,13 @@
#include "MachOFileAbstraction.hpp"
#include "Snapshot.h"
+
+#ifdef LTO
// upward dependency on lto::version()
namespace lto {
extern const char* version();
}
+#endif
// magic to place command line in crash reports
const int crashreporterBufferSize = 2000;
@@ -3179,9 +3182,11 @@
fprintf(stderr, "configured to support archs: %s\n", ALL_SUPPORTED_ARCHS);
// if only -v specified, exit cleanly
if ( argc == 2 ) {
+#ifdef LTO
const char* ltoVers = lto::version();
if ( ltoVers != NULL )
fprintf(stderr, "LTO support using: %s\n", ltoVers);
+#endif
exit(0);
}
}
--- ld64-236.3/src/ld/parsers/archive_file.cpp
+++ ld64-236.3/src/ld/parsers/archive_file.cpp
@@ -45,7 +45,9 @@
#include "Architectures.hpp"
#include "macho_relocatable_file.h"
+#ifdef LTO
#include "lto_file.h"
+#endif
#include "archive_file.h"
@@ -97,8 +99,10 @@
private:
static bool validMachOFile(const uint8_t* fileContent, uint64_t fileLength,
const mach_o::relocatable::ParserOptions& opts);
+#ifdef LTO
static bool validLTOFile(const uint8_t* fileContent, uint64_t fileLength,
const mach_o::relocatable::ParserOptions& opts);
+#endif
static cpu_type_t architecture();
class Entry : ar_hdr
@@ -242,11 +246,13 @@
return mach_o::relocatable::isObjectFile(fileContent, fileLength, opts);
}
+#ifdef LTO
template <typename A>
bool File<A>::validLTOFile(const uint8_t* fileContent, uint64_t fileLength, const mach_o::relocatable::ParserOptions& opts)
{
return lto::isObjectFile(fileContent, fileLength, opts.architecture, opts.subType);
}
+#endif
@@ -267,7 +273,11 @@
if ( (p==start) && ((strcmp(memberName, SYMDEF_SORTED) == 0) || (strcmp(memberName, SYMDEF) == 0)) )
continue;
// archive is valid if first .o file is valid
- return (validMachOFile(p->content(), p->contentSize(), opts) || validLTOFile(p->content(), p->contentSize(), opts));
+ return (validMachOFile(p->content(), p->contentSize(), opts)
+#ifdef LTO
+ || validLTOFile(p->content(), p->contentSize(), opts)
+#endif
+ );
}
// empty archive
return true;
@@ -388,6 +398,7 @@
_instantiatedEntries[member] = state;
return _instantiatedEntries[member];
}
+#ifdef LTO
// see if member is llvm bitcode file
result = lto::parse(member->content(), member->contentSize(),
mPath, member->modificationTime(), ordinal,
@@ -397,6 +408,7 @@
_instantiatedEntries[member] = state;
return _instantiatedEntries[member];
}
+#endif
throwf("archive member '%s' with length %d is not mach-o or llvm bitcode", memberName, member->contentSize());
}
--- ld64-236.3/src/ld/Resolver.cpp
+++ ld64-236.3/src/ld/Resolver.cpp
@@ -56,7 +56,9 @@
#include "InputFiles.h"
#include "SymbolTable.h"
#include "Resolver.h"
+#ifdef LTO
#include "parsers/lto_file.h"
+#endif
namespace ld {
@@ -1438,6 +1440,7 @@
void Resolver::linkTimeOptimize()
{
+#ifdef LTO
// only do work here if some llvm obj files where loaded
if ( ! _haveLLVMObjs )
return;
@@ -1535,6 +1538,9 @@
// check new code does not override some dylib
this->checkDylibSymbolCollisions();
}
+#else
+ return;
+#endif
}
--- ld64-236.3/src/other/ObjectDump.cpp
+++ ld64-236.3/src/other/ObjectDump.cpp
@@ -33,7 +33,9 @@
#include "MachOFileAbstraction.hpp"
#include "parsers/macho_relocatable_file.h"
+#ifdef LTO
#include "parsers/lto_file.h"
+#endif
static bool sDumpContent= true;
static bool sDumpStabs = false;
@@ -1249,10 +1251,12 @@
if ( objResult != NULL )
return objResult;
+#ifdef LTO
// see if it is an llvm object file
objResult = lto::parse(p, fileLen, path, stat_buf.st_mtime, ld::File::Ordinal::NullOrdinal(), sPreferredArch, sPreferredSubArch, false, true);
if ( objResult != NULL )
return objResult;
+#endif
throwf("not a mach-o object file: %s", path);
#else
|
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