; Processor-independent options for Darwin.
; Copyright (C) 2005-2019 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
; .
; 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
Add 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 X 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)
The version of ld64 in use for this toolchain.
; Driver options.
all_load
Driver RejectNegative Alias(Zall_load)
Loads all members of archive libraries
allowable_client
Driver RejectNegative Separate Alias(Zallowable_client)
-allowable_client The output dylib is private to the client(s) named
arch
Driver RejectNegative Separate
-arch Specify that the output file should be generated for architecture \"name\"
arch_errors_fatal
Driver RejectNegative Alias(Zarch_errors_fatal)
Mismatches between file architecture and the \"-arch\" are errors instead of warnings
asm_macosx_version_min=
Driver RejectNegative Joined
The earliest MacOS X version on which this program will run (formatted for the assembler)
bind_at_load
Driver RejectNegative Alias(Zbind_at_load)
Produce an output file that will bind symbols on load, rather than lazily.
bundle
Driver RejectNegative Alias(Zbundle)
Produce a Mach-O bundle (file type MH_BUNDLE)
bundle_loader
Driver RejectNegative Separate Alias(Zbundle_loader)
-bundle_loader 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 Enable the executable being built to link against a private dylib (using allowable_client)
compatibility_version
Driver RejectNegative Separate
-compatibility_version Set the minimum version for the client interface. Clients must record a greater number than this or the binding will fail at runtime
current_version
Driver RejectNegative Separate
-current_version Set the current version for the library.
dead_strip
Driver RejectNegative Alias(Zdead_strip)
Remove code and data that is unreachable from any exported symbol (including the entry point)
dylib_file
Driver Separate Alias(Zdylib_file)
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 Only used for building dyld.
dynamic
Driver RejectNegative Alias(Zdynamic)
The default (and opposite of -static), implied by user mode executables, shared libraries and bundles.
dynamiclib
Driver RejectNegative Alias(Zdynamiclib)
Produce a Mach-O shared library (file type MH_DYLIB), synonym for -shared
exported_symbols_list
Driver RejectNegative Separate Alias(Zexported_symbols_list)
-exported_symbols_list Global symbols in \"filename\" will be exported from the 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 Alias(Zflat_namespace)
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 Alias(Zforce_cpusubtype_ALL)
For the assembler (and linker) permit any architecture sub-variant to be used without error.
force_flat_namespace
Driver RejectNegative Alias(Zforce_flat_namespace)
Set the output object such that, on loading, dyld will ignore any two-level information and resolve symbols in the discovery order for loaded libs.
framework
Driver RejectNegative Separate
-framework The linker should search for the named framework 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 Alias(Zimage_base)
-image_base Choose a base address for a dylib or bundle.
init
Driver RejectNegative Separate Alias(Zinit)
-init The symbol \"symbol_name\" will be used as the first initialiser for a dylib.
install_name
Driver RejectNegative Separate Alias(Zinstall_name)
-install_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 Alias(Zmulti_module)
(Obsolete after 10.4) Multi modules are ignored at runtime since MacOS 10.4
multiply_defined
Driver RejectNegative Separate Alias(Zmultiply_defined)
(Obsolete after 10.4) -multiply_defined Provided a mechanism for warning about symbols defined in multiple dylibs.
multiply_defined_unused
Driver RejectNegative Separate Alias(Zmultiplydefinedunused)
(Obsolete after 10.4) -multiply_defined_unused 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 Alias(Zno_dead_strip_inits_and_terms)
(Obsolete) The linker never dead strips these items, so the option is not needed.
nofixprebinding
Driver RejectNegative
(Obsolete after 10.3.9) Set MH_NOPREFIXBINDING, in an exectuable.
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 for certain special cases.
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 This will allow relocs in read-only pages (not advisable).
sectalign
Driver RejectNegative Separate Args(3)
-sectalign 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 Create section \"sectname\" in segment \"segname\" from the contents of \"file\".
sectobjectsymbols
Driver RejectNegative Separate Args(2)
(Obsolete) -sectobjectsymbols Setting a local symbol at the start of a section is no longer supported.
sectorder
Driver RejectNegative Separate Args(3)
(Obsolete) -sectorder orderfile Replaced by a more general option \"-order_file\".
seg_addr_table
Driver RejectNegative Separate Alias(Zseg_addr_table)
-seg_addr_table 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 Alias(Zfn_seg_addr_table_filename)
(Obsolete, ld_classic only) -seg_addr_table_filename
seg1addr
Driver RejectNegative Separate
Synonym for \"image_base\"
segaddr
Driver RejectNegative Separate Args(2) Alias(Zsegaddr)
-segaddr 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
seglinkedit
Driver RejectNegative Negative(noseglinkedit)
(Obsolete) Object files with LINKEDIT sections are no longer supported.
segprot
Driver RejectNegative Separate Args(3)
-segprot max_prot init_prot The protection values are \"r\", \"w\", \"x\" or \"-\" the latter meaning \"no access\".
segs_read_only_addr
Driver RejectNegative Separate Alias(Zsegs_read_only_addr)
-segs_read_only_addr address Allows specifying the address of the read only portion of a dylib.
segs_read_write_addr
Driver RejectNegative Separate Alias(Zsegs_read_write_addr)
-segs_read_write_addr address Allows specifying the address of the read/write portion of a dylib.
single_module
Driver RejectNegative Alias(Zsingle_module)
(Obsolete) This is the default.
sub_library
Driver RejectNegative Separate
-sub_library Library named \"name\" will be re-exported (only useful for dylibs).
sub_umbrella
Driver RejectNegative Separate
-sub_umbrella Framework named \"name\" will be re-exported (only useful for dylibs).
twolevel_namespace
Driver RejectNegative
This is the default
twolevel_namespace_hints
Driver RejectNegative
Specifies content that can speed up dynamic loading when the binaries are unchanged.
umbrella
Driver RejectNegative Separate Alias(Zumbrella)
-umbrella The specified framework will be re-exported.
undefined
Driver RejectNegative Separate
-undefined Specify the handling for undefined symbols (default is error).
unexported_symbols_list
Driver RejectNegative Separate Alias(Zunexported_symbols_list)
-unexported_symbols_list Don't export global symbols listed in filename.
weak_reference_mismatches
Driver RejectNegative Separate Alias(Zweak_reference_mismatches)
-weak_reference_mismatches 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 the 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).
;; These are not "real" options, but placeholders used to hide the real options
;; from generic options processing... FIXME: they can be eliminated now.
Zall_load
Driver
Zallowable_client
Driver Separate
Zarch_errors_fatal
Driver
Zbind_at_load
Driver
Zbundle
Driver
Zbundle_loader
Driver Separate
Zdead_strip
Driver
Zdylib_file
Driver Separate
Zdynamic
Driver
Zdynamiclib
Driver
Zexported_symbols_list
Driver Separate
Zfn_seg_addr_table_filename
Driver Separate
Zflat_namespace
Driver
Zforce_cpusubtype_ALL
Driver
Zforce_flat_namespace
Driver
Zimage_base
Driver Separate
Zinit
Driver Separate
Zinstall_name
Driver Separate
Zmulti_module
Driver
Zmultiply_defined
Driver Separate
Zmultiplydefinedunused
Driver Separate
Zno_dead_strip_inits_and_terms
Driver
Zseg_addr_table
Driver Separate
Zsegaddr
Driver Separate Args(2)
Zsegs_read_only_addr
Driver Separate
Zsegs_read_write_addr
Driver Separate
Zsingle_module
Driver
Zumbrella
Driver Separate
Zunexported_symbols_list
Driver Separate
Zweak_reference_mismatches
Driver Separate