| ; Processor-independent options for Darwin. |
| |
| ; Copyright (C) 2005-2020 Free Software Foundation, Inc. |
| ; |
| ; This file is part of GCC. |
| ; |
| ; GCC is free software; you can redistribute it and/or modify it under |
| ; the terms of the GNU General Public License as published by the Free |
| ; Software Foundation; either version 3, or (at your option) any later |
| ; version. |
| ; |
| ; GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
| ; WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| ; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| ; for more details. |
| ; |
| ; You should have received a copy of the GNU General Public License |
| ; along with GCC; see the file COPYING3. If not see |
| ; <http://www.gnu.org/licenses/>. |
| |
| ; We have a lot of Driver options, many of which are obsolete or very very |
| ; rarely used so, to keep this file easier to manage: |
| |
| ; Please place all Non-driver options first (in alphabetical order), followed |
| ; by Driver-only options. |
| |
| ; Non-driver options. |
| |
| dependency-file |
| C ObjC C++ ObjC++ Separate Alias(MF) MissingArgError(missing filename after %qs) |
| |
| fapple-kext |
| Target Report C++ Var(flag_apple_kext) |
| Generate code for darwin loadable kernel extensions. |
| |
| iframework |
| Target RejectNegative C ObjC C++ ObjC++ Joined Separate |
| -iframework <dir> Add <dir> to the end of the system framework include path. |
| |
| mconstant-cfstrings |
| Target Report Var(darwin_constant_cfstrings) Init(1) |
| Generate compile-time CFString objects. |
| |
| Wnonportable-cfstrings |
| Target Report Var(darwin_warn_nonportable_cfstrings) Init(1) Warning |
| Warn if constant CFString objects contain non-portable characters. |
| |
| ; Use new-style pic stubs if this is true, x86 only so far. |
| matt-stubs |
| Target Report Var(darwin_macho_att_stub) Init(1) |
| Generate AT&T-style stubs for Mach-O. |
| |
| mdynamic-no-pic |
| Target Common Report Mask(MACHO_DYNAMIC_NO_PIC) |
| Generate code suitable for executables (NOT shared libs). |
| |
| mfix-and-continue |
| Target Report Var(darwin_fix_and_continue) |
| Generate code suitable for fast turn around debugging. |
| |
| mkernel |
| Target Report Var(flag_mkernel) |
| Generate code for the kernel or loadable kernel extensions. |
| |
| ; The Init here is for the convenience of GCC developers, so that cc1 |
| ; and cc1plus don't crash if no -mmacosx-version-min is passed. The |
| ; driver will always pass a -mmacosx-version-min, so in normal use the |
| ; Init is never used. |
| mmacosx-version-min= |
| Target RejectNegative Joined Report Var(darwin_macosx_version_min) Init(DEF_MIN_OSX_VERSION) |
| The earliest macOS version on which this program will run. |
| |
| ; Really, only relevant to PowerPC which has a 4 byte bool by default. |
| mone-byte-bool |
| Target RejectNegative Report Var(darwin_one_byte_bool) |
| Set sizeof(bool) to 1. |
| |
| msymbol-stubs |
| Target Report Var(darwin_symbol_stubs) Init(0) |
| Force generation of external symbol indirection stubs. |
| |
| ; Some code-gen may be improved / adjusted if the linker is sufficiently modern. |
| mtarget-linker= |
| Target RejectNegative Joined Report Alias(mtarget-linker) |
| |
| mtarget-linker |
| Target RejectNegative Joined Separate Report Var(darwin_target_linker) Init(LD64_VERSION) |
| -mtarget-linker <version> Specify that ld64 <version> is the toolchain linker for the current invocation. |
| |
| ; Driver options. |
| |
| all_load |
| Driver RejectNegative |
| Load all members of archive libraries, rather than only those that satisfy undefined symbols. |
| |
| allowable_client |
| Driver RejectNegative Separate |
| -allowable_client <name> The output dylib is private to the client <name>. |
| |
| arch |
| Driver RejectNegative Separate |
| -arch <name> Generate output for architecture <name>. |
| |
| arch_errors_fatal |
| Driver RejectNegative |
| Mismatches between file architecture and one specified by \"-arch\" are errors instead of warnings. |
| |
| asm_macosx_version_min= |
| Driver RejectNegative Joined |
| The earliest macOS version on which this program will run (formatted for the assembler). |
| |
| bind_at_load |
| Driver RejectNegative |
| Generate an output executable that binds symbols on load, rather than lazily. |
| |
| bundle |
| Driver RejectNegative |
| Generate a Mach-O bundle (file type MH_BUNDLE). |
| |
| bundle_loader |
| Driver RejectNegative Separate |
| -bundle_loader <executable> Treat <executable> (that will be loading this bundle) as if it was one of the dynamic libraries the bundle is linked against for symbol resolution. |
| |
| client_name |
| Driver RejectNegative Separate |
| -client_name <name> Enable the executable being built to link against a private dylib (using allowable_client). |
| |
| compatibility_version |
| Driver RejectNegative Separate |
| -compatibility_version <number> Set the version for the client interface. Client programs must record a value less than or equal to <number>, or the binding will fail at runtime. |
| |
| current_version |
| Driver RejectNegative Separate |
| -current_version <number> Set the current version for the library to <number>. |
| |
| dead_strip |
| Driver RejectNegative |
| Remove code and data that is unreachable from any exported symbol (including the entry point). |
| |
| dylib_file |
| Driver RejectNegative Separate |
| -dylib_file install_name:file_name This allows linking of a dylib with \"install_name\" but to be found in a different install position \"file_name\" |
| |
| dylinker |
| Driver RejectNegative |
| Produce a Mach-O dylinker (file type MH_DYLINKER), only used for building dyld. |
| |
| dylinker_install_name |
| Driver RejectNegative Separate |
| -dylinker_install_name <path> Only used for building dyld. |
| |
| dynamic |
| Driver RejectNegative |
| The default (and opposite of -static), implied by user mode executables, shared libraries and bundles. |
| |
| dynamiclib |
| Driver RejectNegative |
| Produce a Mach-O shared library (file type MH_DYLIB), synonym for \"-shared\". |
| |
| exported_symbols_list |
| Driver RejectNegative Separate |
| -exported_symbols_list <filename> Export global symbols in <filename> in linked output file; any symbols not mentioned will be treated as \"hidden\". |
| |
| filelist |
| Driver RejectNegative Separate |
| Supply a list of objects to be linked from a file, rather than the command line. |
| |
| findirect-virtual-calls |
| Driver RejectNegative |
| Used for generating code for some older kernel revisions. |
| |
| flat_namespace |
| Driver RejectNegative |
| Ignore the normal two-level namespace; resolve symbols in command line order and do not record which library provided the resolved symbol. |
| |
| force_cpusubtype_ALL |
| Driver RejectNegative |
| For the assembler (and linker) permit any architecture sub-variant to be used without error. |
| |
| force_flat_namespace |
| Driver RejectNegative |
| Set the output object such that, on loading, dyld will ignore any two-level namespace information and resolve symbols in the discovery order for loaded libs. |
| |
| framework |
| Driver RejectNegative Separate |
| -framework <name> The linker should search for the framework <name> in the framework search path. |
| |
| fterminated-vtables |
| Driver RejectNegative |
| Used for generating code for some older kernel revisions. |
| |
| gfull |
| Driver RejectNegative |
| Abbreviation for \"-g -fno-eliminate-unused-debug-symbols\". |
| |
| gused |
| Driver RejectNegative |
| Abbreviation for \"-g -feliminate-unused-debug-symbols\". |
| |
| headerpad_max_install_names |
| Driver RejectNegative |
| Automatically adds space for longer path names in load commands (up to MAXPATHLEN). |
| |
| image_base |
| Driver RejectNegative Separate |
| -image_base <address> Specify <address> as the base address for a dylib or bundle. |
| |
| init |
| Driver RejectNegative Separate |
| -init <symbol_name> The symbol <symbol_name> will be used as the first initialiser for a dylib. |
| |
| install_name |
| Driver RejectNegative Separate |
| -install_name <name> Set the install name for a dylib. |
| |
| keep_private_externs |
| Driver RejectNegative |
| Usually \"private extern\" (hidden) symbols are made local when linking, this command suppresses that such that they remain exported. |
| |
| multi_module |
| Driver RejectNegative |
| (Obsolete after 10.4) Multi modules are ignored at runtime since macOS 10.4. |
| |
| multiply_defined |
| Driver RejectNegative Separate |
| (Obsolete after 10.4) -multiply_defined <treatment> Provided a mechanism for warning about symbols defined in multiple dylibs. |
| |
| multiply_defined_unused |
| Driver RejectNegative Separate |
| (Obsolete after 10.4) -multiply_defined_unused <treatment> Provided a mechanism for warning about symbols defined in the current executable also being defined in linked dylibs. |
| |
| no_dead_strip_inits_and_terms |
| Driver RejectNegative |
| (Obsolete) Current linkers never dead-strip these items, so the option is not needed. |
| |
| nodefaultexport |
| Driver RejectNegative |
| Do not add a default symbol exports to modules or dynamic libraries. |
| |
| nofixprebinding |
| Driver RejectNegative |
| (Obsolete after 10.3.9) Set MH_NOPREFIXBINDING, in an executable. |
| |
| nomultidefs |
| Driver RejectNegative |
| (Obsolete after 10.4) Set MH_NOMULTIDEFS in an umbrella framework. |
| |
| noprebind |
| Driver RejectNegative Negative(prebind) |
| (Obsolete) LD_PREBIND is no longer supported. |
| |
| noseglinkedit |
| Driver RejectNegative Negative(seglinkedit) |
| (Obsolete) This is the default. |
| |
| object |
| Driver RejectNegative |
| |
| pagezero_size |
| Driver RejectNegative Separate |
| -pagezero_size <size> Allows setting the page 0 size to 4kb when required. |
| |
| prebind |
| Driver RejectNegative Negative(noprebind) |
| (Obsolete) LD_PREBIND is no longer supported. |
| |
| prebind_all_twolevel_modules |
| Driver RejectNegative |
| (Obsolete) LD_PREBIND is no longer supported. |
| |
| preload |
| Driver RejectNegative |
| Produces a Mach-O file suitable for embedded/ROM use. |
| |
| private_bundle |
| Driver RejectNegative |
| (Obsolete) Allowed linking to proceed with \"-flat_namespace\" when a linked bundle contained a symbol also exported from the main executable. |
| |
| pthread |
| Driver RejectNegative |
| |
| rdynamic |
| Driver RejectNegative |
| Synonym for \"-export-dynamic\" for linker versions that support it. |
| |
| read_only_relocs |
| Driver RejectNegative Separate |
| -read_only_relocs <treatment> Allow relocations in read-only pages (not recommended). |
| |
| sectalign |
| Driver RejectNegative Separate Args(3) |
| -sectalign <segname> <sectname> <value> Set section <sectname> in segment <segname> to have alignment <value> which must be an integral power of two expressed in hexadecimal form. |
| |
| sectcreate |
| Driver RejectNegative Separate Args(3) |
| -sectcreate <segname> <sectname> <file> Create section <sectname> in segment <segname> from the contents of <file>. |
| |
| sectobjectsymbols |
| Driver RejectNegative Separate Args(2) |
| (Obsolete) -sectobjectsymbols <segname> <sectname> Setting a local symbol at the start of a section is no longer supported. |
| |
| sectorder |
| Driver RejectNegative Separate Args(3) |
| (Obsolete) -sectorder <segname> <sectname> <orderfile> Replaced by a more general option \"-order_file\". |
| |
| seg_addr_table |
| Driver RejectNegative Separate |
| -seg_addr_table <file> Specify the base addresses for dynamic libraries; <file> contains a line for each library. |
| |
| ; This is only usable by the ld_classic linker. |
| seg_addr_table_filename |
| Driver RejectNegative Separate |
| (Obsolete, ld_classic only) -seg_addr_table_filename <path>. |
| |
| seg1addr |
| Driver RejectNegative Separate |
| Synonym for \"image_base\". |
| |
| segaddr |
| Driver RejectNegative Separate Args(2) |
| -segaddr <name> <address> Set the base address of segment <name> to <address> which must be aligned to a page boundary (currently 4kb). |
| |
| ; This is only usable by the ld_classic linker. |
| segcreate |
| Driver RejectNegative Separate Args(3) |
| (Obsolete, ld_classic only) -sectcreate <segname> <sectname> <file> Allowed creation of a section from a file. |
| |
| seglinkedit |
| Driver RejectNegative Negative(noseglinkedit) |
| (Obsolete) Object files with LINKEDIT sections are no longer supported. |
| |
| segprot |
| Driver RejectNegative Separate Args(3) |
| -segprot <segname> <max_prot> <init_prot> The virtual memory protections for segment <segname> have maximum and initial values <max_prot> and <init_prot> respectively. The specified values may contain \"r\", \"w\", \"x\" or \"-\" the latter meaning \"no access\". |
| |
| segs_read_only_addr |
| Driver RejectNegative Separate |
| -segs_read_only_addr <address> Specify that <address> is the base address of the read-only segments of a dylib. |
| |
| segs_read_write_addr |
| Driver RejectNegative Separate |
| -segs_read_write_addr <address> Specify that <address> is the base address address of the read-write segments of a dylib. |
| |
| single_module |
| Driver RejectNegative |
| (Obsolete) This is the default. |
| |
| sub_library |
| Driver RejectNegative Separate |
| -sub_library <name> Library named <name> will be re-exported (only useful for dylibs). |
| |
| sub_umbrella |
| Driver RejectNegative Separate |
| -sub_umbrella <name> Framework named <name> will be re-exported (only useful for dylibs). |
| |
| twolevel_namespace |
| Driver RejectNegative |
| This is the default. |
| |
| twolevel_namespace_hints |
| Driver RejectNegative |
| Add extra information to the executable that can speed up dynamic loading (provided that dependent libraries are unchanged). |
| |
| umbrella |
| Driver RejectNegative |
| -umbrella <framework> The specified framework will be re-exported. |
| |
| undefined |
| Driver RejectNegative Separate |
| -undefined <treatment> Specify the handling for undefined symbols (default is error). |
| |
| unexported_symbols_list |
| Driver RejectNegative Separate |
| -unexported_symbols_list <filename> Do not export the global symbols listed in <filename>. |
| |
| weak_reference_mismatches |
| Driver RejectNegative Separate |
| -weak_reference_mismatches <treatment> Specifies what to do if a symbol import conflicts between file (weak in one and not in another) the default is to treat the symbol as non-weak. |
| |
| whatsloaded |
| Driver RejectNegative |
| Logs which object files the linker loads. |
| |
| whyload |
| Driver RejectNegative |
| Logs which symbol(s) caused an object to be loaded. |
| |
| ;(Obsolete, ignored) Strip symbols starting with "L", this is the default. |
| X |
| Driver RejectNegative |
| |
| y |
| Driver RejectNegative Joined |
| (Obsolete, ignored) Old support similar to \"-whyload\". |
| |
| Mach |
| Driver RejectNegative |
| (Obsolete and unhandled by ld64, ignored) ld should produce an executable (only handled by ld_classic). |
