компилятор C и C ++ проекта GNU (GNU project C and C++ compiler)
Параметры подробно (Options detail)
Darwin
These options are defined for all architectures running the
Darwin operating system.
FSF GCC on Darwin does not create "fat" object files; it creates
an object file for the single architecture that GCC was built to
target. Apple's GCC on Darwin does create "fat" files if
multiple -arch options are used; it does so by running the
compiler or linker multiple times and joining the results
together with lipo.
The subtype of the file created (like ppc7400 or ppc970 or i686)
is determined by the flags that specify the ISA that GCC is
targeting, like -mcpu or -march. The -force_cpusubtype_ALL
option can be used to override this.
The Darwin tools vary in their behavior when presented with an
ISA mismatch. The assembler, as, only permits instructions to be
used that are valid for the subtype of the file it is generating,
so you cannot put 64-bit instructions in a ppc750 object file.
The linker for shared libraries, /usr/bin/libtool, fails and
prints an error if asked to create a shared library with a less
restrictive subtype than its input files (for instance, trying to
put a ppc970 object file in a ppc7400 library). The linker for
executables, ld, quietly gives the executable the most
restrictive subtype of any of its input files.
-Fdir
Add the framework directory dir to the head of the list of
directories to be searched for header files. These
directories are interleaved with those specified by -I
options and are scanned in a left-to-right order.
A framework directory is a directory with frameworks in it.
A framework is a directory with a Headers and/or
PrivateHeaders directory contained directly in it that ends
in .framework. The name of a framework is the name of this
directory excluding the .framework. Headers associated with
the framework are found in one of those two directories, with
Headers being searched first. A subframework is a framework
directory that is in a framework's Frameworks directory.
Includes of subframework headers can only appear in a header
of a framework that contains the subframework, or in a
sibling subframework header. Two subframeworks are siblings
if they occur in the same framework. A subframework should
not have the same name as a framework; a warning is issued if
this is violated. Currently a subframework cannot have
subframeworks; in the future, the mechanism may be extended
to support this. The standard frameworks can be found in
/System/Library/Frameworks and /Library/Frameworks. An
example include looks like "#include <Framework/header.h>",
where Framework denotes the name of the framework and
header.h is found in the PrivateHeaders or Headers directory.
-iframeworkdir
Like -F except the directory is a treated as a system
directory. The main difference between this -iframework and
-F is that with -iframework the compiler does not warn about
constructs contained within header files found via dir. This
option is valid only for the C family of languages.
-gused
Emit debugging information for symbols that are used. For
stabs debugging format, this enables
-feliminate-unused-debug-symbols. This is by default ON.
-gfull
Emit debugging information for all symbols and types.
-mmacosx-version-min=version
The earliest version of MacOS X that this executable will run
on is version. Typical values of version include 10.1, 10.2,
and 10.3.9.
If the compiler was built to use the system's headers by
default, then the default for this option is the system
version on which the compiler is running, otherwise the
default is to make choices that are compatible with as many
systems and code bases as possible.
-mkernel
Enable kernel development mode. The -mkernel option sets
-static, -fno-common, -fno-use-cxa-atexit, -fno-exceptions,
-fno-non-call-exceptions, -fapple-kext, -fno-weak and
-fno-rtti where applicable. This mode also sets
-mno-altivec, -msoft-float, -fno-builtin and -mlong-branch
for PowerPC targets.
-mone-byte-bool
Override the defaults for "bool" so that "sizeof(bool)==1".
By default "sizeof(bool)" is 4 when compiling for
Darwin/PowerPC and 1 when compiling for Darwin/x86, so this
option has no effect on x86.
Warning: The -mone-byte-bool switch causes GCC to generate
code that is not binary compatible with code generated
without that switch. Using this switch may require
recompiling all other modules in a program, including system
libraries. Use this switch to conform to a non-default data
model.
-mfix-and-continue
-ffix-and-continue
-findirect-data
Generate code suitable for fast turnaround development, such
as to allow GDB to dynamically load .o files into already-
running programs. -findirect-data and -ffix-and-continue are
provided for backwards compatibility.
-all_load
Loads all members of static archive libraries. See man ld(1)
for more information.
-arch_errors_fatal
Cause the errors having to do with files that have the wrong
architecture to be fatal.
-bind_at_load
Causes the output file to be marked such that the dynamic
linker will bind all undefined references when the file is
loaded or launched.
-bundle
Produce a Mach-o bundle format file. See man ld(1) for more
information.
-bundle_loader executable
This option specifies the executable that will load the build
output file being linked. See man ld(1) for more
information.
-dynamiclib
When passed this option, GCC produces a dynamic library
instead of an executable when linking, using the Darwin
libtool command.
-force_cpusubtype_ALL
This causes GCC's output file to have the ALL subtype,
instead of one controlled by the -mcpu or -march option.
-allowable_client client_name
-client_name
-compatibility_version
-current_version
-dead_strip
-dependency-file
-dylib_file
-dylinker_install_name
-dynamic
-exported_symbols_list
-filelist
-flat_namespace
-force_flat_namespace
-headerpad_max_install_names
-image_base
-init
-install_name
-keep_private_externs
-multi_module
-multiply_defined
-multiply_defined_unused
-noall_load
-no_dead_strip_inits_and_terms
-nofixprebinding
-nomultidefs
-noprebind
-noseglinkedit
-pagezero_size
-prebind
-prebind_all_twolevel_modules
-private_bundle
-read_only_relocs
-sectalign
-sectobjectsymbols
-whyload
-seg1addr
-sectcreate
-sectobjectsymbols
-sectorder
-segaddr
-segs_read_only_addr
-segs_read_write_addr
-seg_addr_table
-seg_addr_table_filename
-seglinkedit
-segprot
-segs_read_only_addr
-segs_read_write_addr
-single_module
-static
-sub_library
-sub_umbrella
-twolevel_namespace
-umbrella
-undefined
-unexported_symbols_list
-weak_reference_mismatches
-whatsloaded
These options are passed to the Darwin linker. The Darwin
linker man page describes them in detail.
