mx/MX_Pmodule
1
0
Fork 1
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Programming/ld64

Browse Source 
- build-block added
This commit is contained in:
gsell
2017-11-20 17:44:33 +01:00
parent e8af606b25
commit 2eac7e159c
25 changed files with 2527 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Programming/ld64/274/patches.Darwin/PR-29117886.patch
Symlink
+1
View File
@@ -0,0 +1 @@
../../files/PR-29117886.patch
Programming/ld64/274/patches.Darwin/PR-29679726.patch
Symlink
+1
View File
@@ -0,0 +1 @@
../../files/PR-29679726.patch
Programming/ld64/274/patches.Darwin/PR-29723276.patch
Symlink
+1
View File
@@ -0,0 +1 @@
../../files/PR-29723276.patch
Programming/ld64/274/patches.Darwin/PR-29723629.patch
Symlink
+1
View File
@@ -0,0 +1 @@
../../files/PR-29723629.patch
Programming/ld64/274/patches.Darwin/PR-49393.patch
Symlink
+1
View File
@@ -0,0 +1 @@
../../files/PR-49393.patch
Programming/ld64/274/patches.Darwin/ld64-133-no-CrashReporterClient.h.patch
Symlink
+1
View File
@@ -0,0 +1 @@
../../files/ld64-133-no-CrashReporterClient.h.patch
Programming/ld64/274/patches.Darwin/ld64-134-missing-include.patch
Symlink
+1
View File
@@ -0,0 +1 @@
../../files/ld64-134-missing-include.patch
Programming/ld64/274/patches.Darwin/ld64-136-i386-badAddress.patch
Symlink
+1
View File
@@ -0,0 +1 @@
../../files/ld64-136-i386-badAddress.patch
Programming/ld64/274/patches.Darwin/ld64-ppc-9610466.patch
Symlink
+1
View File
@@ -0,0 +1 @@
../../files/ld64-ppc-9610466.patch
Programming/ld64/274/patches.Darwin/ld64-version.patch
Symlink
+1
View File
@@ -0,0 +1 @@
../../files/ld64-version.patch
Programming/ld64/274/variants.Darwin
+1
View File
@@ -0,0 +1 @@
ld64/274.2 unstable
Programming/ld64/build
Executable
+73
View File
@@ -0,0 +1,73 @@
#!/usr/bin/env modbuild
CCTOOLS_VERSION='895'
DYLD_VERSION='421.2'
SOURCE_URL="http://opensource.apple.com/tarballs/$P/$P-$V.tar.gz"
CCTOOLS_SOURCE_URL="https://opensource.apple.com/tarballs/cctools/cctools-${CCTOOLS_VERSION}.tar.gz"
DYLD_SOURCE_URL="http://opensource.apple.com/tarballs/dyld/dyld-${DYLD_VERSION}.tar.gz"
pbuild::patch_sources () {
find_patchdir() {
local -a patchdirs=()
patchdirs+=( "${BUILD_BLOCK_DIR}/${V}/patches.${OS}" )
patchdirs+=( "${BUILD_BLOCK_DIR}/${V}/patches" )
patchdirs+=( "${BUILD_BLOCK_DIR}/${V%.*}/patches.${OS}" )
patchdirs+=( "${BUILD_BLOCK_DIR}/${V%.*}/patches" )
patchdirs+=( "${BUILD_BLOCK_DIR}/${V%.*.*}/patches.${OS}" )
patchdirs+=( "${BUILD_BLOCK_DIR}/${V%.*.*}/patches" )
for patchdir in "${patchdirs[@]}"; do
[[ -e "${patchdir}" ]] && return 0;
done
return 1
}
find_patchdir || return 0
local patch_file=''
for patch_file in "${patchdir}"/*; do
patch -p0 < "${patch_file}"
done
}
pbuild::post_prep() {
local -r DYLD_SRC_DIR="${PMODULES_TMPDIR}/dyld-${DYLD_VERSION}/src"
local -r CCTOOLS_SRC_DIR="${PMODULES_TMPDIR}/cctools-${CCTOOLS_VERSION}/src"
local source_file=''
pbuild::get_source source_file "${DYLD_SOURCE_URL}" "${PMODULES_DISTFILESDIR}" ||
std::die 4 "dyld/${DYLD_VERSION}: sourcecode not found."
pbuild::unpack "${source_file}" "${DYLD_SRC_DIR}"
pbuild::get_source source_file "${CCTOOLS_SOURCE_URL}" "${PMODULES_DISTFILESDIR}" ||
std::die 4 "cctools/${CCTOOLS_VERSION}: sourcecode not found."
pbuild::unpack "${source_file}" "${CCTOOLS_SRC_DIR}"
cd "${MODULE_SRCDIR}"
mkdir -p "include/mach-o"
rsync --archive "../../cctools-${CCTOOLS_VERSION}/src/include/mach-o/" "include/mach-o/"
rsync --archive "../../dyld-${DYLD_VERSION}/src/include/mach-o/" "include/mach-o/"
mkdir -p "include/llvm-c"
cp -v "${BUILD_BLOCK_DIR}/files/Disassembler.h" "include/llvm-c/"
cp -v "${BUILD_BLOCK_DIR}/files/lto.h" "include/llvm-c/"
}
pbuild::configure() {
cp -v "${BUILD_BLOCK_DIR}/files/Makefile-${V_MAJOR}" "${MODULE_SRCDIR}/Makefile"
}
pbuild::build() {
cd "${MODULE_SRCDIR}"
which $CC
make OTHER_CXXFLAGS="-std=c++11 -I$PWD/include" OTHER_LDFLAGS="-L/Applications/Xcode.app/Contents/Frameworks -lLTO"
}
# use system gcc to compile
declare -rx CC=/usr/bin/gcc
declare -rx CXX=/usr/bin/g++
pbuild::add_to_group 'Programming'
pbuild::set_docfiles 'COPYING' 'COPYING.LIB' 'COPYING.RUNTIME' 'COPYING3' 'COPYING3.LIB' 'NEWS' 'README'
pbuild::make_all
Programming/ld64/files/Disassembler.h
+239
View File
@@ -0,0 +1,239 @@
/*===-- llvm-c/Disassembler.h - Disassembler Public C Interface ---*- C -*-===*\
|* *|
|* The LLVM Compiler Infrastructure *|
|* *|
|* This file is distributed under the University of Illinois Open Source *|
|* License. See LICENSE.TXT for details. *|
|* *|
|*===----------------------------------------------------------------------===*|
|* *|
|* This header provides a public interface to a disassembler library. *|
|* LLVM provides an implementation of this interface. *|
|* *|
\*===----------------------------------------------------------------------===*/
#ifndef LLVM_C_DISASSEMBLER_H
#define LLVM_C_DISASSEMBLER_H
#include <stddef.h>
/**
* @defgroup LLVMCDisassembler Disassembler
* @ingroup LLVMC
*
* @{
*/
/**
* An opaque reference to a disassembler context.
*/
typedef void *LLVMDisasmContextRef;
/**
* The type for the operand information call back function. This is called to
* get the symbolic information for an operand of an instruction. Typically
* this is from the relocation information, symbol table, etc. That block of
* information is saved when the disassembler context is created and passed to
* the call back in the DisInfo parameter. The instruction containing operand
* is at the PC parameter. For some instruction sets, there can be more than
* one operand with symbolic information. To determine the symbolic operand
* information for each operand, the bytes for the specific operand in the
* instruction are specified by the Offset parameter and its byte widith is the
* size parameter. For instructions sets with fixed widths and one symbolic
* operand per instruction, the Offset parameter will be zero and Size parameter
* will be the instruction width. The information is returned in TagBuf and is
* Triple specific with its specific information defined by the value of
* TagType for that Triple. If symbolic information is returned the function
* returns 1, otherwise it returns 0.
*/
typedef int (*LLVMOpInfoCallback)(void *DisInfo, uint64_t Pc,
uint64_t Offset, uint64_t Size,
int TagType, void *TagBuf);
/**
* The initial support in LLVM MC for the most general form of a relocatable
* expression is "AddSymbol - SubtractSymbol + Offset". For some Darwin targets
* this full form is encoded in the relocation information so that AddSymbol and
* SubtractSymbol can be link edited independent of each other. Many other
* platforms only allow a relocatable expression of the form AddSymbol + Offset
* to be encoded.
*
* The LLVMOpInfoCallback() for the TagType value of 1 uses the struct
* LLVMOpInfo1. The value of the relocatable expression for the operand,
* including any PC adjustment, is passed in to the call back in the Value
* field. The symbolic information about the operand is returned using all
* the fields of the structure with the Offset of the relocatable expression
* returned in the Value field. It is possible that some symbols in the
* relocatable expression were assembly temporary symbols, for example
* "Ldata - LpicBase + constant", and only the Values of the symbols without
* symbol names are present in the relocation information. The VariantKind
* type is one of the Target specific #defines below and is used to print
* operands like "_foo@GOT", ":lower16:_foo", etc.
*/
struct LLVMOpInfoSymbol1 {
uint64_t Present; /* 1 if this symbol is present */
const char *Name; /* symbol name if not NULL */
uint64_t Value; /* symbol value if name is NULL */
};
struct LLVMOpInfo1 {
struct LLVMOpInfoSymbol1 AddSymbol;
struct LLVMOpInfoSymbol1 SubtractSymbol;
uint64_t Value;
uint64_t VariantKind;
};
/**
* The operand VariantKinds for symbolic disassembly.
*/
#define LLVMDisassembler_VariantKind_None 0 /* all targets */
/**
* The ARM target VariantKinds.
*/
#define LLVMDisassembler_VariantKind_ARM_HI16 1 /* :upper16: */
#define LLVMDisassembler_VariantKind_ARM_LO16 2 /* :lower16: */
/**
* The ARM64 target VariantKinds.
*/
#define LLVMDisassembler_VariantKind_ARM64_PAGE 1 /* @page */
#define LLVMDisassembler_VariantKind_ARM64_PAGEOFF 2 /* @pageoff */
#define LLVMDisassembler_VariantKind_ARM64_GOTPAGE 3 /* @gotpage */
#define LLVMDisassembler_VariantKind_ARM64_GOTPAGEOFF 4 /* @gotpageoff */
#define LLVMDisassembler_VariantKind_ARM64_TLVP 5 /* @tvlppage */
#define LLVMDisassembler_VariantKind_ARM64_TLVOFF 6 /* @tvlppageoff */
/**
* The type for the symbol lookup function. This may be called by the
* disassembler for things like adding a comment for a PC plus a constant
* offset load instruction to use a symbol name instead of a load address value.
* It is passed the block information is saved when the disassembler context is
* created and the ReferenceValue to look up as a symbol. If no symbol is found
* for the ReferenceValue NULL is returned. The ReferenceType of the
* instruction is passed indirectly as is the PC of the instruction in
* ReferencePC. If the output reference can be determined its type is returned
* indirectly in ReferenceType along with ReferenceName if any, or that is set
* to NULL.
*/
typedef const char *(*LLVMSymbolLookupCallback)(void *DisInfo,
uint64_t ReferenceValue,
uint64_t *ReferenceType,
uint64_t ReferencePC,
const char **ReferenceName);
/**
* The reference types on input and output.
*/
/* No input reference type or no output reference type. */
#define LLVMDisassembler_ReferenceType_InOut_None 0
/* The input reference is from a branch instruction. */
#define LLVMDisassembler_ReferenceType_In_Branch 1
/* The input reference is from a PC relative load instruction. */
#define LLVMDisassembler_ReferenceType_In_PCrel_Load 2
/* The input reference is from an ARM64::ADRP instruction. */
#define LLVMDisassembler_ReferenceType_In_ARM64_ADRP 0x100000001
/* The input reference is from an ARM64::ADDXri instruction. */
#define LLVMDisassembler_ReferenceType_In_ARM64_ADDXri 0x100000002
/* The input reference is from an ARM64::LDRXui instruction. */
#define LLVMDisassembler_ReferenceType_In_ARM64_LDRXui 0x100000003
/* The input reference is from an ARM64::LDRXl instruction. */
#define LLVMDisassembler_ReferenceType_In_ARM64_LDRXl 0x100000004
/* The input reference is from an ARM64::ADR instruction. */
#define LLVMDisassembler_ReferenceType_In_ARM64_ADR 0x100000005
/* The output reference is to as symbol stub. */
#define LLVMDisassembler_ReferenceType_Out_SymbolStub 1
/* The output reference is to a symbol address in a literal pool. */
#define LLVMDisassembler_ReferenceType_Out_LitPool_SymAddr 2
/* The output reference is to a cstring address in a literal pool. */
#define LLVMDisassembler_ReferenceType_Out_LitPool_CstrAddr 3
/* The output reference is to a Objective-C CoreFoundation string. */
#define LLVMDisassembler_ReferenceType_Out_Objc_CFString_Ref 4
/* The output reference is to a Objective-C message. */
#define LLVMDisassembler_ReferenceType_Out_Objc_Message 5
/* The output reference is to a Objective-C message ref. */
#define LLVMDisassembler_ReferenceType_Out_Objc_Message_Ref 6
/* The output reference is to a Objective-C selector ref. */
#define LLVMDisassembler_ReferenceType_Out_Objc_Selector_Ref 7
/* The output reference is to a Objective-C class ref. */
#define LLVMDisassembler_ReferenceType_Out_Objc_Class_Ref 8
/* The output reference is to a C++ symbol name. */
#define LLVMDisassembler_ReferenceType_DeMangled_Name 9
#ifdef __cplusplus
extern "C" {
#endif /* !defined(__cplusplus) */
/**
* Create a disassembler for the TripleName. Symbolic disassembly is supported
* by passing a block of information in the DisInfo parameter and specifying the
* TagType and callback functions as described above. These can all be passed
* as NULL. If successful, this returns a disassembler context. If not, it
* returns NULL. This function is equivalent to calling LLVMCreateDisasmCPU()
* with an empty CPU name.
*/
LLVMDisasmContextRef LLVMCreateDisasm(const char *TripleName, void *DisInfo,
int TagType, LLVMOpInfoCallback GetOpInfo,
LLVMSymbolLookupCallback SymbolLookUp);
/**
* Create a disassembler for the TripleName and a specific CPU. Symbolic
* disassembly is supported by passing a block of information in the DisInfo
* parameter and specifying the TagType and callback functions as described
* above. These can all be passed * as NULL. If successful, this returns a
* disassembler context. If not, it returns NULL.
*/
LLVMDisasmContextRef LLVMCreateDisasmCPU(const char *Triple, const char *CPU,
void *DisInfo, int TagType,
LLVMOpInfoCallback GetOpInfo,
LLVMSymbolLookupCallback SymbolLookUp);
/**
* Set the disassembler's options. Returns 1 if it can set the Options and 0
* otherwise.
*/
int LLVMSetDisasmOptions(LLVMDisasmContextRef DC, uint64_t Options);
/* The option to produce marked up assembly. */
#define LLVMDisassembler_Option_UseMarkup 1
/* The option to print immediates as hex. */
#define LLVMDisassembler_Option_PrintImmHex 2
/* The option use the other assembler printer variant */
#define LLVMDisassembler_Option_AsmPrinterVariant 4
/* The option to set comment on instructions */
#define LLVMDisassembler_Option_SetInstrComments 8
/* The option to print latency information alongside instructions */
#define LLVMDisassembler_Option_PrintLatency 16
/**
* Dispose of a disassembler context.
*/
void LLVMDisasmDispose(LLVMDisasmContextRef DC);
/**
* Disassemble a single instruction using the disassembler context specified in
* the parameter DC. The bytes of the instruction are specified in the
* parameter Bytes, and contains at least BytesSize number of bytes. The
* instruction is at the address specified by the PC parameter. If a valid
* instruction can be disassembled, its string is returned indirectly in
* OutString whose size is specified in the parameter OutStringSize. This
* function returns the number of bytes in the instruction or zero if there was
* no valid instruction.
*/
size_t LLVMDisasmInstruction(LLVMDisasmContextRef DC, uint8_t *Bytes,
uint64_t BytesSize, uint64_t Pc,
char *OutString, size_t OutStringSize);
/**
* @}
*/
#ifdef __cplusplus
}
#endif /* !defined(__cplusplus) */
#endif /* !defined(LLVM_C_DISASSEMBLER_H) */
Programming/ld64/files/Makefile-274
+106
View File
@@ -0,0 +1,106 @@
ifdef LLVM_CONFIG
LLVM_CPPFLAGS := -I$(shell $(LLVM_CONFIG) --includedir) -DLTO_SUPPORT
LLVM_LDFLAGS := -L$(shell $(LLVM_CONFIG) --libdir) -Wl,-rpath,$(shell $(LLVM_CONFIG) --libdir) -lLTO
endif
CPPFLAGS = $(LLVM_CPPFLAGS) -Isrc/abstraction -Isrc/ld -Isrc/ld/parsers $(OTHER_CPPFLAGS)
CFLAGS = -Os $(OTHER_CFLAGS)
CXXFLAGS = -Os $(OTHER_CXXFLAGS)
LDFLAGS = $(OTHER_LDFLAGS)
ifndef RANLIB
RANLIB = ranlib
endif
ifndef AR
AR = ar
endif
ifndef PREFIX
PREFIX = /usr
endif
# libprunetrie.a
all : src/ld/configure.h ObjectDump dyldinfo ld machocheck rebase unwinddump
src/ld/Snapshot.o : src/ld/compile_stubs.h
src/ld/compile_stubs.h : compile_stubs
echo "static const char *compile_stubs = " > $@
cat $^ | sed s/\"/\\\\\"/g | sed s/^/\"/ | sed s/$$/\\\\n\"/ >> $@
echo ";" >> $@
src/ld/configure.h : src/create_configure
DERIVED_SOURCES_DIR=src/ld DERIVED_FILE_DIR=src/ld $^ > $@
ObjectDump : src/ld/debugline.o
ObjectDump : src/ld/parsers/macho_relocatable_file.o
ObjectDump : src/ld/parsers/lto_file.o
ObjectDump : src/other/ObjectDump.o
$(CXX) $(LLVM_LDFLAGS) $(LDFLAGS) $^ -o $@
dyldinfo : src/other/dyldinfo.o
$(CXX) $(LDFLAGS) -Wl,-exported_symbol,__mh_execute_header $^ -o $@
ld : src/ld/debugline.o
ld : src/ld/ld.o
ld : src/ld/InputFiles.o
ld : src/ld/Options.o
ld : src/ld/OutputFile.o
ld : src/ld/Resolver.o
ld : src/ld/Snapshot.o
ld : src/ld/SymbolTable.o
ld : src/ld/parsers/archive_file.o
ld : src/ld/parsers/lto_file.o
ld : src/ld/parsers/macho_dylib_file.o
ld : src/ld/parsers/macho_relocatable_file.o
ld : src/ld/parsers/opaque_section_file.o
ld : src/ld/parsers/textstub_dylib_file.o
ld : src/ld/passes/bitcode_bundle.o
ld : src/ld/passes/branch_island.o
ld : src/ld/passes/branch_shim.o
ld : src/ld/passes/code_dedup.o
ld : src/ld/passes/compact_unwind.o
ld : src/ld/passes/dtrace_dof.o
ld : src/ld/passes/dylibs.o
ld : src/ld/passes/got.o
ld : src/ld/passes/huge.o
ld : src/ld/passes/objc.o
ld : src/ld/passes/order.o
ld : src/ld/passes/tlvp.o
ld : src/ld/passes/stubs/stubs.o
$(CXX) $(LLVM_LDFLAGS) $(LDFLAGS) $(OTHER_LDFLAGS_LD64) -Wl,-exported_symbol,__mh_execute_header $^ -lxar -o $@
machocheck : src/other/machochecker.o
$(CXX) $(LDFLAGS) $^ -o $@
rebase : src/other/rebase.o
$(CXX) $(LDFLAGS) -Wl,-exported_symbol,__mh_execute_header $^ -o $@
unwinddump : src/other/unwinddump.o
$(CXX) $(LDFLAGS) -Wl,-exported_symbol,__mh_execute_header $^ -o $@
src/other/PruneTrie.o : src/ld/configure.h
libprunetrie.a : src/other/PruneTrie.o
$(AR) cru $@ $^
$(RANLIB) $@
install : all
install -d -m 755 $(DESTDIR)$(PREFIX)/bin
install -d -m 755 $(DESTDIR)$(PREFIX)/lib
install -d -m 755 $(DESTDIR)$(PREFIX)/include/mach-o
install -d -m 755 $(DESTDIR)$(PREFIX)/share/man/man1
install -m 755 ObjectDump $(DESTDIR)$(PREFIX)/bin
install -m 755 dyldinfo $(DESTDIR)$(PREFIX)/bin
install -m 755 ld $(DESTDIR)$(PREFIX)/bin
install -m 755 machocheck $(DESTDIR)$(PREFIX)/bin
install -m 755 rebase $(DESTDIR)$(PREFIX)/bin
install -m 755 unwinddump $(DESTDIR)$(PREFIX)/bin
#install -m 644 src/other/prune_trie.h $(DESTDIR)$(PREFIX)/include/mach-o
#install -m 644 libprunetrie.a $(DESTDIR)$(PREFIX)/lib
install -m 644 doc/man/man1/dyldinfo.1 $(DESTDIR)$(PREFIX)/share/man/man1
install -m 644 doc/man/man1/ld.1 $(DESTDIR)$(PREFIX)/share/man/man1
install -m 644 doc/man/man1/ld64.1 $(DESTDIR)$(PREFIX)/share/man/man1
install -m 644 doc/man/man1/rebase.1 $(DESTDIR)$(PREFIX)/share/man/man1
install -m 644 doc/man/man1/unwinddump.1 $(DESTDIR)$(PREFIX)/share/man/man1
Programming/ld64/files/PR-29117886.patch
+32
View File
@@ -0,0 +1,32 @@
--- src/ld/OutputFile.cpp
+++ src/ld/OutputFile.cpp
@@ -4461,14 +4461,18 @@ void OutputFile::addClassicRelocs(ld::Internal& state, ld::Internal::FinalSectio
assert(minusTarget->definition() != ld::Atom::definitionProxy);
assert(target != NULL);
assert(target->definition() != ld::Atom::definitionProxy);
- // make sure target is not global and weak
- if ( (target->scope() == ld::Atom::scopeGlobal) && (target->combine() == ld::Atom::combineByName)
- && (atom->section().type() != ld::Section::typeCFI)
- && (atom->section().type() != ld::Section::typeDtraceDOF)
- && (atom->section().type() != ld::Section::typeUnwindInfo)
- && (minusTarget != target) ) {
- // ok for __eh_frame and __uwind_info to use pointer diffs to global weak symbols
- throwf("bad codegen, pointer diff in %s to global weak symbol %s", atom->name(), target->name());
+ // check if target of pointer-diff is global and weak
+ if ( (target->scope() == ld::Atom::scopeGlobal) && (target->combine() == ld::Atom::combineByName) && (target->definition() == ld::Atom::definitionRegular) ) {
+ if ( (atom->section().type() == ld::Section::typeCFI)
+ || (atom->section().type() == ld::Section::typeDtraceDOF)
+ || (atom->section().type() == ld::Section::typeUnwindInfo) ) {
+ // ok for __eh_frame and __uwind_info to use pointer diffs to global weak symbols
+ return;
+ }
+ // Have direct reference to weak-global. This should be an indrect reference
+ warning("direct access in %s to global weak symbol %s means the weak symbol cannot be overriden at runtime. "
+ "This was likely caused by different translation units being compiled with different visiblity settings.",
+ atom->name(), target->name());
}
return;
}
--
2.10.1
Programming/ld64/files/PR-29679726.patch
+1120
View File
File diff suppressed because it is too large Load Diff
Programming/ld64/files/PR-29723276.patch
+12
View File
@@ -0,0 +1,12 @@
--- src/other/ObjectDump.cpp.orig 2016-03-09 13:27:56.000000000 -0800
+++ src/other/ObjectDump.cpp 2016-12-18 00:12:47.000000000 -0800
@@ -843,9 +843,6 @@ void dumper::dumpFixup(const ld::Fixup*
case ld::Fixup::kindStoreARM64PCRelToGOT:
printf(", then store as 32-bit delta to GOT entry");
break;
- case ld::Fixup::kindStoreARM64PointerToGOT32:
- printf(", then store as 32-bit pointer to GOT entry");
- break;
case ld::Fixup::kindDtraceExtra:
printf("dtrace static probe extra info");
break;
Programming/ld64/files/PR-29723629.patch
+37
View File
@@ -0,0 +1,37 @@
guard usage of thinlto_code_gen_t behind an appropriate API version check
--- src/ld/parsers/lto_file.cpp
+++ src/ld/parsers/lto_file.cpp
@@ -292,12 +292,14 @@ private:
std::vector<const ld::Atom*>& newAtoms,
std::vector<const char*>& additionalUndefines);
+#if LTO_API_VERSION >= 18
static thinlto_code_gen_t init_thinlto_codegen(const std::vector<File*>& files,
const std::vector<const ld::Atom*>& allAtoms,
ld::Internal& state,
const OptimizeOptions& options,
CStringToAtom& deadllvmAtoms,
CStringToAtom& llvmAtoms);
+#endif
static std::vector<File*> _s_files;
static bool _s_llvmOptionsProcessed;
@@ -1035,6 +1037,7 @@ bool Parser::optimizeLTO(const std::vector<File*> files,
return true;
}
+#if LTO_API_VERSION >= 18
// Create the ThinLTO codegenerator
thinlto_code_gen_t Parser::init_thinlto_codegen(const std::vector<File*>& files,
const std::vector<const ld::Atom*>& allAtoms,
@@ -1185,6 +1188,7 @@ thinlto_code_gen_t Parser::init_thinlto_codegen(const std::vector<File*>&
return thingenerator;
}
+#endif
// Full LTO processing
bool Parser::optimizeThinLTO(const std::vector<File*>& files,
--
2.11.0
Programming/ld64/files/PR-49393.patch
+11
View File
@@ -0,0 +1,11 @@
--- src/ld/parsers/textstub_dylib_file.cpp.orig 2015-06-15 15:42:21.000000000 -0700
+++ src/ld/parsers/textstub_dylib_file.cpp 2015-10-23 17:45:56.000000000 -0700
@@ -29,7 +29,7 @@
#include <vector>
#include "Architectures.hpp"
-#include "bitcode.hpp"
+#include "Bitcode.hpp"
#include "MachOFileAbstraction.hpp"
#include "MachOTrie.hpp"
#include "textstub_dylib_file.hpp"
Programming/ld64/files/ld64-133-no-CrashReporterClient.h.patch
+21
View File
@@ -0,0 +1,21 @@
--- src/ld/Options.cpp.orig 2012-09-04 14:00:10.000000000 -0700
+++ src/ld/Options.cpp 2012-09-04 14:00:37.000000000 -0700
@@ -50,7 +50,7 @@ namespace lto {
// magic to place command line in crash reports
const int crashreporterBufferSize = 2000;
static char crashreporterBuffer[crashreporterBufferSize];
-#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1070
+#if 0 && __MAC_OS_X_VERSION_MIN_REQUIRED >= 1070
#include <CrashReporterClient.h>
// hack until ld does not need to build on 10.6 anymore
struct crashreporter_annotations_t gCRAnnotations
@@ -4246,7 +4247,7 @@ void Options::checkForClassic(int argc,
bool newLinker = false;
// build command line buffer in case ld crashes
-#if __MAC_OS_X_VERSION_MIN_REQUIRED >= 1070
+#if 0 && __MAC_OS_X_VERSION_MIN_REQUIRED >= 1070
CRSetCrashLogMessage(crashreporterBuffer);
#endif
const char* srcRoot = getenv("SRCROOT");
Programming/ld64/files/ld64-134-missing-include.patch
+21
View File
@@ -0,0 +1,21 @@
--- src/ld/parsers/lto_file.cpp.orig 2012-12-30 20:08:12.000000000 -0800
+++ src/ld/parsers/lto_file.cpp 2012-12-30 20:08:32.000000000 -0800
@@ -35,6 +35,8 @@
#include <ext/hash_set>
#include <ext/hash_map>
+#include <pthread.h>
+
#include "MachOFileAbstraction.hpp"
#include "Architectures.hpp"
#include "ld.hpp"
--- src/other/rebase.cpp.orig 2013-02-08 09:28:44.000000000 -0800
+++ src/other/rebase.cpp 2013-02-08 09:29:01.000000000 -0800
@@ -29,6 +29,7 @@
#include <limits.h>
#include <stdarg.h>
#include <stdio.h>
+#include <stdlib.h>
#include <fcntl.h>
#include <errno.h>
#include <unistd.h>
Programming/ld64/files/ld64-136-i386-badAddress.patch
+11
View File
@@ -0,0 +1,11 @@
--- src/ld/LinkEdit.hpp.orig 2013-05-27 10:47:54.000000000 -0700
+++ src/ld/LinkEdit.hpp 2013-05-27 10:56:06.000000000 -0700
@@ -1278,7 +1278,7 @@ template <typename A>
void FunctionStartsAtom<A>::encode() const
{
this->_encodedData.reserve(8192);
- const uint64_t badAddress = 0xFFFFFFFFFFFFFFFF;
+ const uint64_t badAddress = 0xFFFFFFFFFFFFFFFFULL;
uint64_t addr = badAddress;
// delta compress all function addresses
for (std::vector<ld::Internal::FinalSection*>::iterator it = this->_state.sections.begin(); it != this->_state.sections.end(); ++it) {
Programming/ld64/files/ld64-ppc-9610466.patch
+17
View File
@@ -0,0 +1,17 @@
Adjust out-of range error to be a warning on ppc
AKA <rdar://problem/9610466> for ppc
https://trac.macports.org/ticket/46801
--- src/ld/OutputFile.cpp
+++ src/ld/OutputFile.cpp
@@ -625,7 +625,7 @@ void OutputFile::rangeCheckAbsolute32(int64_t displacement, ld::Internal& state,
// is encoded in mach-o the same as:
// .long _foo + 0x40000000
// so if _foo lays out to 0xC0000100, the first is ok, but the second is not.
- if ( (_options.architecture() == CPU_TYPE_ARM) || (_options.architecture() == CPU_TYPE_I386) ) {
+ if ( (_options.architecture() == CPU_TYPE_ARM) || (_options.architecture() == CPU_TYPE_I386) || (_options.architecture() == CPU_TYPE_POWERPC) ) {
// Unlikely userland code does funky stuff like this, so warn for them, but not warn for -preload or -static
if ( (_options.outputKind() != Options::kPreload) && (_options.outputKind() != Options::kStaticExecutable) ) {
warning("32-bit absolute address out of range (0x%08llX max is 4GB): from %s + 0x%08X (0x%08llX) to 0x%08llX",
Programming/ld64/files/ld64-version.patch
+19
View File
@@ -0,0 +1,19 @@
--- src/ld/Options.cpp 2008-03-20 18:48:04.000000000 -0700
+++ src/ld/Options.cpp 2012-04-11 15:54:34.000000000 -0700
@@ -32,6 +32,8 @@
#include "Options.h"
+const char ldVersionString[] = "@(#)PROGRAM:ld PROJECT:ld64-@@VERSION@@\n";
+
void throwf(const char* format, ...)
{
va_list list;
@@ -2153,7 +2155,6 @@ void Options::buildSearchPaths(int argc,
addStandardLibraryDirectories = false;
else if ( strcmp(argv[i], "-v") == 0 ) {
fVerbose = true;
- extern const char ldVersionString[];
fprintf(stderr, "%s", ldVersionString);
// if only -v specified, exit cleanly
if ( argc == 2 )
Programming/ld64/files/lto.h
+797
View File
@@ -0,0 +1,797 @@
/*===-- llvm-c/lto.h - LTO Public C Interface ---------------------*- C -*-===*\
|* *|
|* The LLVM Compiler Infrastructure *|
|* *|
|* This file is distributed under the University of Illinois Open Source *|
|* License. See LICENSE.TXT for details. *|
|* *|
|*===----------------------------------------------------------------------===*|
|* *|
|* This header provides public interface to an abstract link time optimization*|
|* library. LLVM provides an implementation of this interface for use with *|
|* llvm bitcode files. *|
|* *|
\*===----------------------------------------------------------------------===*/
#ifndef LLVM_C_LTO_H
#define LLVM_C_LTO_H
#ifdef __cplusplus
#include <cstddef>
#else
#include <stddef.h>
#endif
#include <sys/types.h>
#ifndef __cplusplus
#if !defined(_MSC_VER)
#include <stdbool.h>
typedef bool lto_bool_t;
#else
/* MSVC in particular does not have anything like _Bool or bool in C, but we can
at least make sure the type is the same size. The implementation side will
use C++ bool. */
typedef unsigned char lto_bool_t;
#endif
#else
typedef bool lto_bool_t;
#endif
/**
* @defgroup LLVMCLTO LTO
* @ingroup LLVMC
*
* @{
*/
#define LTO_API_VERSION 20
/**
* \since prior to LTO_API_VERSION=3
*/
typedef enum {
LTO_SYMBOL_ALIGNMENT_MASK = 0x0000001F, /* log2 of alignment */
LTO_SYMBOL_PERMISSIONS_MASK = 0x000000E0,
LTO_SYMBOL_PERMISSIONS_CODE = 0x000000A0,
LTO_SYMBOL_PERMISSIONS_DATA = 0x000000C0,
LTO_SYMBOL_PERMISSIONS_RODATA = 0x00000080,
LTO_SYMBOL_DEFINITION_MASK = 0x00000700,
LTO_SYMBOL_DEFINITION_REGULAR = 0x00000100,
LTO_SYMBOL_DEFINITION_TENTATIVE = 0x00000200,
LTO_SYMBOL_DEFINITION_WEAK = 0x00000300,
LTO_SYMBOL_DEFINITION_UNDEFINED = 0x00000400,
LTO_SYMBOL_DEFINITION_WEAKUNDEF = 0x00000500,
LTO_SYMBOL_SCOPE_MASK = 0x00003800,
LTO_SYMBOL_SCOPE_INTERNAL = 0x00000800,
LTO_SYMBOL_SCOPE_HIDDEN = 0x00001000,
LTO_SYMBOL_SCOPE_PROTECTED = 0x00002000,
LTO_SYMBOL_SCOPE_DEFAULT = 0x00001800,
LTO_SYMBOL_SCOPE_DEFAULT_CAN_BE_HIDDEN = 0x00002800,
LTO_SYMBOL_COMDAT = 0x00004000,
LTO_SYMBOL_ALIAS = 0x00008000
} lto_symbol_attributes;
/**
* \since prior to LTO_API_VERSION=3
*/
typedef enum {
LTO_DEBUG_MODEL_NONE = 0,
LTO_DEBUG_MODEL_DWARF = 1
} lto_debug_model;
/**
* \since prior to LTO_API_VERSION=3
*/
typedef enum {
LTO_CODEGEN_PIC_MODEL_STATIC = 0,
LTO_CODEGEN_PIC_MODEL_DYNAMIC = 1,
LTO_CODEGEN_PIC_MODEL_DYNAMIC_NO_PIC = 2,
LTO_CODEGEN_PIC_MODEL_DEFAULT = 3
} lto_codegen_model;
/** opaque reference to a loaded object module */
typedef struct LLVMOpaqueLTOModule *lto_module_t;
/** opaque reference to a code generator */
typedef struct LLVMOpaqueLTOCodeGenerator *lto_code_gen_t;
/** opaque reference to a thin code generator */
typedef struct LLVMOpaqueThinLTOCodeGenerator *thinlto_code_gen_t;
#ifdef __cplusplus
extern "C" {
#endif
/**
* Returns a printable string.
*
* \since prior to LTO_API_VERSION=3
*/
extern const char*
lto_get_version(void);
/**
* Returns the last error string or NULL if last operation was successful.
*
* \since prior to LTO_API_VERSION=3
*/
extern const char*
lto_get_error_message(void);
/**
* Checks if a file is a loadable object file.
*
* \since prior to LTO_API_VERSION=3
*/
extern lto_bool_t
lto_module_is_object_file(const char* path);
/**
* Checks if a file is a loadable object compiled for requested target.
*
* \since prior to LTO_API_VERSION=3
*/
extern lto_bool_t
lto_module_is_object_file_for_target(const char* path,
const char* target_triple_prefix);
/**
* Return true if \p Buffer contains a bitcode file with ObjC code (category
* or class) in it.
*
* \since LTO_API_VERSION=20
*/
extern lto_bool_t
lto_module_has_objc_category(const void *mem, size_t length);
/**
* Checks if a buffer is a loadable object file.
*
* \since prior to LTO_API_VERSION=3
*/
extern lto_bool_t lto_module_is_object_file_in_memory(const void *mem,
size_t length);
/**
* Checks if a buffer is a loadable object compiled for requested target.
*
* \since prior to LTO_API_VERSION=3
*/
extern lto_bool_t
lto_module_is_object_file_in_memory_for_target(const void* mem, size_t length,
const char* target_triple_prefix);
/**
* Loads an object file from disk.
* Returns NULL on error (check lto_get_error_message() for details).
*
* \since prior to LTO_API_VERSION=3
*/
extern lto_module_t
lto_module_create(const char* path);
/**
* Loads an object file from memory.
* Returns NULL on error (check lto_get_error_message() for details).
*
* \since prior to LTO_API_VERSION=3
*/
extern lto_module_t
lto_module_create_from_memory(const void* mem, size_t length);
/**
* Loads an object file from memory with an extra path argument.
* Returns NULL on error (check lto_get_error_message() for details).
*
* \since LTO_API_VERSION=9
*/
extern lto_module_t
lto_module_create_from_memory_with_path(const void* mem, size_t length,
const char *path);
/**
* \brief Loads an object file in its own context.
*
* Loads an object file in its own LLVMContext. This function call is
* thread-safe. However, modules created this way should not be merged into an
* lto_code_gen_t using \a lto_codegen_add_module().
*
* Returns NULL on error (check lto_get_error_message() for details).
*
* \since LTO_API_VERSION=11
*/
extern lto_module_t
lto_module_create_in_local_context(const void *mem, size_t length,
const char *path);
/**
* \brief Loads an object file in the codegen context.
*
* Loads an object file into the same context as \c cg. The module is safe to
* add using \a lto_codegen_add_module().
*
* Returns NULL on error (check lto_get_error_message() for details).
*
* \since LTO_API_VERSION=11
*/
extern lto_module_t
lto_module_create_in_codegen_context(const void *mem, size_t length,
const char *path, lto_code_gen_t cg);
/**
* Loads an object file from disk. The seek point of fd is not preserved.
* Returns NULL on error (check lto_get_error_message() for details).
*
* \since LTO_API_VERSION=5
*/
extern lto_module_t
lto_module_create_from_fd(int fd, const char *path, size_t file_size);
/**
* Loads an object file from disk. The seek point of fd is not preserved.
* Returns NULL on error (check lto_get_error_message() for details).
*
* \since LTO_API_VERSION=5
*/
extern lto_module_t
lto_module_create_from_fd_at_offset(int fd, const char *path, size_t file_size,
size_t map_size, off_t offset);
/**
* Frees all memory internally allocated by the module.
* Upon return the lto_module_t is no longer valid.
*
* \since prior to LTO_API_VERSION=3
*/
extern void
lto_module_dispose(lto_module_t mod);
/**
* Returns triple string which the object module was compiled under.
*
* \since prior to LTO_API_VERSION=3
*/
extern const char*
lto_module_get_target_triple(lto_module_t mod);
/**
* Sets triple string with which the object will be codegened.
*
* \since LTO_API_VERSION=4
*/
extern void
lto_module_set_target_triple(lto_module_t mod, const char *triple);
/**
* Returns the number of symbols in the object module.
*
* \since prior to LTO_API_VERSION=3
*/
extern unsigned int
lto_module_get_num_symbols(lto_module_t mod);
/**
* Returns the name of the ith symbol in the object module.
*
* \since prior to LTO_API_VERSION=3
*/
extern const char*
lto_module_get_symbol_name(lto_module_t mod, unsigned int index);
/**
* Returns the attributes of the ith symbol in the object module.
*
* \since prior to LTO_API_VERSION=3
*/
extern lto_symbol_attributes
lto_module_get_symbol_attribute(lto_module_t mod, unsigned int index);
/**
* Returns the module's linker options.
*
* The linker options may consist of multiple flags. It is the linker's
* responsibility to split the flags using a platform-specific mechanism.
*
* \since LTO_API_VERSION=16
*/
extern const char*
lto_module_get_linkeropts(lto_module_t mod);
/**
* Diagnostic severity.
*
* \since LTO_API_VERSION=7
*/
typedef enum {
LTO_DS_ERROR = 0,
LTO_DS_WARNING = 1,
LTO_DS_REMARK = 3, // Added in LTO_API_VERSION=10.
LTO_DS_NOTE = 2
} lto_codegen_diagnostic_severity_t;
/**
* Diagnostic handler type.
* \p severity defines the severity.
* \p diag is the actual diagnostic.
* The diagnostic is not prefixed by any of severity keyword, e.g., 'error: '.
* \p ctxt is used to pass the context set with the diagnostic handler.
*
* \since LTO_API_VERSION=7
*/
typedef void (*lto_diagnostic_handler_t)(
lto_codegen_diagnostic_severity_t severity, const char *diag, void *ctxt);
/**
* Set a diagnostic handler and the related context (void *).
* This is more general than lto_get_error_message, as the diagnostic handler
* can be called at anytime within lto.
*
* \since LTO_API_VERSION=7
*/
extern void lto_codegen_set_diagnostic_handler(lto_code_gen_t,
lto_diagnostic_handler_t,
void *);
/**
* Instantiates a code generator.
* Returns NULL on error (check lto_get_error_message() for details).
*
* All modules added using \a lto_codegen_add_module() must have been created
* in the same context as the codegen.
*
* \since prior to LTO_API_VERSION=3
*/
extern lto_code_gen_t
lto_codegen_create(void);
/**
* \brief Instantiate a code generator in its own context.
*
* Instantiates a code generator in its own context. Modules added via \a
* lto_codegen_add_module() must have all been created in the same context,
* using \a lto_module_create_in_codegen_context().
*
* \since LTO_API_VERSION=11
*/
extern lto_code_gen_t
lto_codegen_create_in_local_context(void);
/**
* Frees all code generator and all memory it internally allocated.
* Upon return the lto_code_gen_t is no longer valid.
*
* \since prior to LTO_API_VERSION=3
*/
extern void
lto_codegen_dispose(lto_code_gen_t);
/**
* Add an object module to the set of modules for which code will be generated.
* Returns true on error (check lto_get_error_message() for details).
*
* \c cg and \c mod must both be in the same context. See \a
* lto_codegen_create_in_local_context() and \a
* lto_module_create_in_codegen_context().
*
* \since prior to LTO_API_VERSION=3
*/
extern lto_bool_t
lto_codegen_add_module(lto_code_gen_t cg, lto_module_t mod);
/**
* Sets the object module for code generation. This will transfer the ownership
* of the module to the code generator.
*
* \c cg and \c mod must both be in the same context.
*
* \since LTO_API_VERSION=13
*/
extern void
lto_codegen_set_module(lto_code_gen_t cg, lto_module_t mod);
/**
* Sets if debug info should be generated.
* Returns true on error (check lto_get_error_message() for details).
*
* \since prior to LTO_API_VERSION=3
*/
extern lto_bool_t
lto_codegen_set_debug_model(lto_code_gen_t cg, lto_debug_model);
/**
* Sets which PIC code model to generated.
* Returns true on error (check lto_get_error_message() for details).
*
* \since prior to LTO_API_VERSION=3
*/
extern lto_bool_t
lto_codegen_set_pic_model(lto_code_gen_t cg, lto_codegen_model);
/**
* Sets the cpu to generate code for.
*
* \since LTO_API_VERSION=4
*/
extern void
lto_codegen_set_cpu(lto_code_gen_t cg, const char *cpu);
/**
* Sets the location of the assembler tool to run. If not set, libLTO
* will use gcc to invoke the assembler.
*
* \since LTO_API_VERSION=3
*/
extern void
lto_codegen_set_assembler_path(lto_code_gen_t cg, const char* path);
/**
* Sets extra arguments that libLTO should pass to the assembler.
*
* \since LTO_API_VERSION=4
*/
extern void
lto_codegen_set_assembler_args(lto_code_gen_t cg, const char **args,
int nargs);
/**
* Adds to a list of all global symbols that must exist in the final generated
* code. If a function is not listed there, it might be inlined into every usage
* and optimized away.
*
* \since prior to LTO_API_VERSION=3
*/
extern void
lto_codegen_add_must_preserve_symbol(lto_code_gen_t cg, const char* symbol);
/**
* Writes a new object file at the specified path that contains the
* merged contents of all modules added so far.
* Returns true on error (check lto_get_error_message() for details).
*
* \since LTO_API_VERSION=5
*/
extern lto_bool_t
lto_codegen_write_merged_modules(lto_code_gen_t cg, const char* path);
/**
* Generates code for all added modules into one native object file.
* This calls lto_codegen_optimize then lto_codegen_compile_optimized.
*
* On success returns a pointer to a generated mach-o/ELF buffer and
* length set to the buffer size. The buffer is owned by the
* lto_code_gen_t and will be freed when lto_codegen_dispose()
* is called, or lto_codegen_compile() is called again.
* On failure, returns NULL (check lto_get_error_message() for details).
*
* \since prior to LTO_API_VERSION=3
*/
extern const void*
lto_codegen_compile(lto_code_gen_t cg, size_t* length);
/**
* Generates code for all added modules into one native object file.
* This calls lto_codegen_optimize then lto_codegen_compile_optimized (instead
* of returning a generated mach-o/ELF buffer, it writes to a file).
*
* The name of the file is written to name. Returns true on error.
*
* \since LTO_API_VERSION=5
*/
extern lto_bool_t
lto_codegen_compile_to_file(lto_code_gen_t cg, const char** name);
/**
* Runs optimization for the merged module. Returns true on error.
*
* \since LTO_API_VERSION=12
*/
extern lto_bool_t
lto_codegen_optimize(lto_code_gen_t cg);
/**
* Generates code for the optimized merged module into one native object file.
* It will not run any IR optimizations on the merged module.
*
* On success returns a pointer to a generated mach-o/ELF buffer and length set
* to the buffer size. The buffer is owned by the lto_code_gen_t and will be
* freed when lto_codegen_dispose() is called, or
* lto_codegen_compile_optimized() is called again. On failure, returns NULL
* (check lto_get_error_message() for details).
*
* \since LTO_API_VERSION=12
*/
extern const void*
lto_codegen_compile_optimized(lto_code_gen_t cg, size_t* length);
/**
* Returns the runtime API version.
*
* \since LTO_API_VERSION=12
*/
extern unsigned int
lto_api_version(void);
/**
* Sets options to help debug codegen bugs.
*
* \since prior to LTO_API_VERSION=3
*/
extern void
lto_codegen_debug_options(lto_code_gen_t cg, const char *);
/**
* Initializes LLVM disassemblers.
* FIXME: This doesn't really belong here.
*
* \since LTO_API_VERSION=5
*/
extern void
lto_initialize_disassembler(void);
/**
* Sets if we should run internalize pass during optimization and code
* generation.
*
* \since LTO_API_VERSION=14
*/
extern void
lto_codegen_set_should_internalize(lto_code_gen_t cg,
lto_bool_t ShouldInternalize);
/**
* \brief Set whether to embed uselists in bitcode.
*
* Sets whether \a lto_codegen_write_merged_modules() should embed uselists in
* output bitcode. This should be turned on for all -save-temps output.
*
* \since LTO_API_VERSION=15
*/
extern void
lto_codegen_set_should_embed_uselists(lto_code_gen_t cg,
lto_bool_t ShouldEmbedUselists);
/**
* @}
* @defgroup LLVMCTLTO ThinLTO
* @ingroup LLVMC
*
* @{
*/
/**
* Type to wrap a single object returned by ThinLTO.
*
* \since LTO_API_VERSION=18
*/
typedef struct {
const char *Buffer;
size_t Size;
} LTOObjectBuffer;
/**
* Instantiates a ThinLTO code generator.
* Returns NULL on error (check lto_get_error_message() for details).
*
*
* The ThinLTOCodeGenerator is not intended to be reuse for multiple
* compilation: the model is that the client adds modules to the generator and
* ask to perform the ThinLTO optimizations / codegen, and finally destroys the
* codegenerator.
*
* \since LTO_API_VERSION=18
*/
extern thinlto_code_gen_t thinlto_create_codegen(void);
/**
* Frees the generator and all memory it internally allocated.
* Upon return the thinlto_code_gen_t is no longer valid.
*
* \since LTO_API_VERSION=18
*/
extern void thinlto_codegen_dispose(thinlto_code_gen_t cg);
/**
* Add a module to a ThinLTO code generator. Identifier has to be unique among
* all the modules in a code generator. The data buffer stays owned by the
* client, and is expected to be available for the entire lifetime of the
* thinlto_code_gen_t it is added to.
*
* On failure, returns NULL (check lto_get_error_message() for details).
*
*
* \since LTO_API_VERSION=18
*/
extern void thinlto_codegen_add_module(thinlto_code_gen_t cg,
const char *identifier, const char *data,
int length);
/**
* Optimize and codegen all the modules added to the codegenerator using
* ThinLTO. Resulting objects are accessible using thinlto_module_get_object().
*
* \since LTO_API_VERSION=18
*/
extern void thinlto_codegen_process(thinlto_code_gen_t cg);
/**
* Returns the number of object files produced by the ThinLTO CodeGenerator.
*
* It usually matches the number of input files, but this is not a guarantee of
* the API and may change in future implementation, so the client should not
* assume it.
*
* \since LTO_API_VERSION=18
*/
extern unsigned int thinlto_module_get_num_objects(thinlto_code_gen_t cg);
/**
* Returns a reference to the ith object file produced by the ThinLTO
* CodeGenerator.
*
* Client should use \p thinlto_module_get_num_objects() to get the number of
* available objects.
*
* \since LTO_API_VERSION=18
*/
extern LTOObjectBuffer thinlto_module_get_object(thinlto_code_gen_t cg,
unsigned int index);
/**
* Sets which PIC code model to generate.
* Returns true on error (check lto_get_error_message() for details).
*
* \since LTO_API_VERSION=18
*/
extern lto_bool_t thinlto_codegen_set_pic_model(thinlto_code_gen_t cg,
lto_codegen_model);
/**
* @}
* @defgroup LLVMCTLTO_CACHING ThinLTO Cache Control
* @ingroup LLVMCTLTO
*
* These entry points control the ThinLTO cache. The cache is intended to
* support incremental build, and thus needs to be persistent accross build.
* The client enabled the cache by supplying a path to an existing directory.
* The code generator will use this to store objects files that may be reused
* during a subsequent build.
* To avoid filling the disk space, a few knobs are provided:
* - The pruning interval limit the frequency at which the garbage collector
* will try to scan the cache directory to prune it from expired entries.
* Setting to -1 disable the pruning (default).
* - The pruning expiration time indicates to the garbage collector how old an
* entry needs to be to be removed.
* - Finally, the garbage collector can be instructed to prune the cache till
* the occupied space goes below a threshold.
* @{
*/
/**
* Sets the path to a directory to use as a cache storage for incremental build.
* Setting this activates caching.
*
* \since LTO_API_VERSION=18
*/
extern void thinlto_codegen_set_cache_dir(thinlto_code_gen_t cg,
const char *cache_dir);
/**
* Sets the cache pruning interval (in seconds). A negative value disable the
* pruning. An unspecified default value will be applied, and a value of 0 will
* be ignored.
*
* \since LTO_API_VERSION=18
*/
extern void thinlto_codegen_set_cache_pruning_interval(thinlto_code_gen_t cg,
int interval);
/**
* Sets the maximum cache size that can be persistent across build, in terms of
* percentage of the available space on the the disk. Set to 100 to indicate
* no limit, 50 to indicate that the cache size will not be left over half the
* available space. A value over 100 will be reduced to 100, a value of 0 will
* be ignored. An unspecified default value will be applied.
*
* The formula looks like:
* AvailableSpace = FreeSpace + ExistingCacheSize
* NewCacheSize = AvailableSpace * P/100
*
* \since LTO_API_VERSION=18
*/
extern void thinlto_codegen_set_final_cache_size_relative_to_available_space(
thinlto_code_gen_t cg, unsigned percentage);
/**
* Sets the expiration (in seconds) for an entry in the cache. An unspecified
* default value will be applied. A value of 0 will be ignored.
*
* \since LTO_API_VERSION=18
*/
extern void thinlto_codegen_set_cache_entry_expiration(thinlto_code_gen_t cg,
unsigned expiration);
/**
* @}
*/
/**
* Sets the path to a directory to use as a storage for temporary bitcode files.
* The intention is to make the bitcode files available for debugging at various
* stage of the pipeline.
*
* \since LTO_API_VERSION=18
*/
extern void thinlto_codegen_set_savetemps_dir(thinlto_code_gen_t cg,
const char *save_temps_dir);
/**
* Sets the cpu to generate code for.
*
* \since LTO_API_VERSION=18
*/
extern void thinlto_codegen_set_cpu(thinlto_code_gen_t cg, const char *cpu);
/**
* Disable CodeGen, only run the stages till codegen and stop. The output will
* be bitcode.
*
* \since LTO_API_VERSION=19
*/
extern void thinlto_codegen_disable_codegen(thinlto_code_gen_t cg,
lto_bool_t disable);
/**
* Perform CodeGen only: disable all other stages.
*
* \since LTO_API_VERSION=19
*/
extern void thinlto_codegen_set_codegen_only(thinlto_code_gen_t cg,
lto_bool_t codegen_only);
/**
* Parse -mllvm style debug options.
*
* \since LTO_API_VERSION=18
*/
extern void thinlto_debug_options(const char *const *options, int number);
/**
* Test if a module has support for ThinLTO linking.
*
* \since LTO_API_VERSION=18
*/
extern lto_bool_t lto_module_is_thinlto(lto_module_t mod);
/**
* Adds a symbol to the list of global symbols that must exist in the final
* generated code. If a function is not listed there, it might be inlined into
* every usage and optimized away. For every single module, the functions
* referenced from code outside of the ThinLTO modules need to be added here.
*
* \since LTO_API_VERSION=18
*/
extern void thinlto_codegen_add_must_preserve_symbol(thinlto_code_gen_t cg,
const char *name,
int length);
/**
* Adds a symbol to the list of global symbols that are cross-referenced between
* ThinLTO files. If the ThinLTO CodeGenerator can ensure that every
* references from a ThinLTO module to this symbol is optimized away, then
* the symbol can be discarded.
*
* \since LTO_API_VERSION=18
*/
extern void thinlto_codegen_add_cross_referenced_symbol(thinlto_code_gen_t cg,
const char *name,
int length);
#ifdef __cplusplus
}
#endif
/**
* @}
*/
#endif /* LLVM_C_LTO_H */