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*** Evolution of Command Line options of different C++ compilers ***
[ Abstract ]
Technical details on Evolution of Command Line options of different C++ compilers, more than 10, will be provided.
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MinGW v4.9.2 64-bit Options - Group 14
-g Generate debug information in default format
-gcoff Generate debug information in COFF format
-gdwarf Generate debug information in default version of
DWARF format
-gdwarf- Generate debug information in DWARF v2 (or later)
format
-ggdb Generate debug information in default extended
format
-ggnu-pubnames Generate DWARF pubnames and pubtypes sections
with GNU extensions.
-gno-pubnames Don't generate DWARF pubnames and pubtypes
sections.
-gno-record-gcc-switches Don't record gcc command line switches in DWARF
DW_AT_producer.
-gno-split-dwarf Don't generate debug information in separate .dwo
files
-gno-strict-dwarf Emit DWARF additions beyond selected version
-gpubnames Generate DWARF pubnames and pubtypes sections.
-grecord-gcc-switches Record gcc command line switches in DWARF
DW_AT_producer.
-gsplit-dwarf Generate debug information in separate .dwo files
-gstabs Generate debug information in STABS format
-gstabs+ Generate debug information in extended STABS
format
-gstrict-dwarf Don't emit DWARF additions beyond selected version
-gtoggle Toggle debug information generation
-gvms Generate debug information in VMS format
-gxcoff Generate debug information in XCOFF format
-gxcoff+ Generate debug information in extended XCOFF
format
-imultiarch Set to be the multiarch include subdirectory
-iplugindir= Set to be the default plugin directory
-p Enable function profiling
-pedantic-errors Like -pedantic but issue them as errors
-quiet Do not display functions compiled or elapsed time
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MinGW v4.9.2 64-bit Options - Group 15
Usage: C:/WorkLib/MinGW/Bin/../lib/gcc/x86_64-w64-mingw32/4.9.2/../../../../x86_64-w64-mingw32/bin/as.exe [option...] [asmfile...]
Options:
-a[sub-option...] turn on listings
Sub-options [default hls]:
c omit false conditionals
d omit debugging directives
g include general info
h include high-level source
l include assembly
m include macro expansions
n omit forms processing
s include symbols
=FILE list to FILE (must be last sub-option)
--alternate initially turn on alternate macro syntax
--compress-debug-sections
compress DWARF debug sections using zlib
--nocompress-debug-sections
don't compress DWARF debug sections
-D produce assembler debugging messages
--debug-prefix-map OLD=NEW
map OLD to NEW in debug information
--defsym SYM=VAL define symbol SYM to given value
-f skip whitespace and comment preprocessing
-g --gen-debug generate debugging information
--gstabs generate STABS debugging information
--gstabs+ generate STABS debug info with GNU extensions
--gdwarf-2 generate DWARF2 debugging information
--gdwarf-sections generate per-function section names for DWARF line information
--hash-size= set the hash table size close to
--help show this message and exit
--target-help show target specific options
-I DIR add DIR to search list for .include directives
-J don't warn about signed overflow
-K warn when differences altered for long displacements
-L,--keep-locals keep local symbols (e.g. starting with `L')
-M,--mri assemble in MRI compatibility mode
--MD FILE write dependency information in FILE (default none)
-nocpp ignored
-o OBJFILE name the object-file output OBJFILE (default a.out)
-R fold data section into text section
--reduce-memory-overheads
prefer smaller memory use at the cost of longer
assembly times
--statistics print various measured statistics from execution
--strip-local-absolute strip local absolute symbols
--traditional-format Use same format as native assembler when possible
--version print assembler version number and exit
-W --no-warn suppress warnings
--warn don't suppress warnings
--fatal-warnings treat warnings as errors
-w ignored
-X ignored
-Z generate object file even after errors
--listing-lhs-width set the width in words of the output data column of
the listing
--listing-lhs-width2 set the width in words of the continuation lines
of the output data column; ignored if smaller than
the width of the first line
--listing-rhs-width set the max width in characters of the lines from
the source file
--listing-cont-lines set the maximum number of continuation lines used
for the output data column of the listing
@FILE read options from FILE
-n Do not optimize code alignment
-q quieten some warnings
--32/--64/--x32 generate 32bit/64bit/x32 code
--divide ignored
-march=CPU[,+EXTENSION...]
generate code for CPU and EXTENSION, CPU is one of:
generic32, generic64, i386, i486, i586, i686,
pentium, pentiumpro, pentiumii, pentiumiii, pentium4,
prescott, nocona, core, core2, corei7, l1om, k1om,
k6, k6_2, athlon, opteron, k8, amdfam10, bdver1,
bdver2, bdver3, bdver4, btver1, btver2
EXTENSION is combination of:
8087, 287, 387, no87, mmx, nommx, sse, sse2, sse3,
ssse3, sse4.1, sse4.2, sse4, nosse, avx, avx2,
avx512f, avx512cd, avx512er, avx512pf, avx512dq,
avx512bw, avx512vl, noavx, vmx, vmfunc, smx, xsave,
xsaveopt, xsavec, xsaves, aes, pclmul, fsgsbase,
rdrnd, f16c, bmi2, fma, fma4, xop, lwp, movbe, cx16,
ept, lzcnt, hle, rtm, invpcid, clflush, nop, syscall,
rdtscp, 3dnow, 3dnowa, padlock, svme, sse4a, abm,
bmi, tbm, adx, rdseed, prfchw, smap, mpx, sha,
clflushopt, prefetchwt1, se1, clwb, pcommit,
avx512ifma, avx512vbmi
-mtune=CPU optimize for CPU, CPU is one of:
generic32, generic64, i8086, i186, i286, i386, i486,
i586, i686, pentium, pentiumpro, pentiumii,
pentiumiii, pentium4, prescott, nocona, core, core2,
corei7, l1om, k1om, k6, k6_2, athlon, opteron, k8,
amdfam10, bdver1, bdver2, bdver3, bdver4, btver1,
btver2
-msse2avx encode SSE instructions with VEX prefix
-msse-check=[none|error|warning]
check SSE instructions
-moperand-check=[none|error|warning]
check operand combinations for validity
-mavxscalar=[128|256] encode scalar AVX instructions with specific vector
length
-mevexlig=[128|256|512] encode scalar EVEX instructions with specific vector
length
-mevexwig=[0|1] encode EVEX instructions with specific EVEX.W value
for EVEX.W bit ignored instructions
-mevexrcig=[rne|rd|ru|rz]
encode EVEX instructions with specific EVEX.RC value
for SAE-only ignored instructions
-mmnemonic=[att|intel] use AT&T/Intel mnemonic
-msyntax=[att|intel] use AT&T/Intel syntax
-mindex-reg support pseudo index registers
-mnaked-reg don't require `%' prefix for registers
-mold-gcc support old (<= 2.8.1) versions of gcc
-madd-bnd-prefix add BND prefix for all valid branches
-mbig-obj generate big object files
-momit-lock-prefix=[no|yes]
strip all lock prefixes
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MinGW v4.9.2 64-bit Options - Group 16
Report bugs to <>
Usage: collect2 [options]
Wrap linker and generate constructor code if needed.
Options:
-debug Enable debug output
--help Display this information
-v, --version Display this program's version number
Overview: http://gcc.gnu.org/onlinedocs/gccint/Collect2.html
Report bugs: <>
Usage: C:/WorkLib/MinGW/Bin/../lib/gcc/x86_64-w64-mingw32/4.9.2/../../../../x86_64-w64-mingw32/bin/ld.exe [options] file...
Options:
-a KEYWORD Shared library control for HP/UX compatibility
-A ARCH, --architecture ARCH
Set architecture
-b TARGET, --format TARGET Specify target for following input files
-c FILE, --mri-script FILE Read MRI format linker script
-d, -dc, -dp Force common symbols to be defined
-e ADDRESS, --entry ADDRESS Set start address
-E, --export-dynamic Export all dynamic symbols
--no-export-dynamic Undo the effect of --export-dynamic
-EB Link big-endian objects
-EL Link little-endian objects
-f SHLIB, --auxiliary SHLIB Auxiliary filter for shared object symbol table
-F SHLIB, --filter SHLIB Filter for shared object symbol table
-g Ignored
-G SIZE, --gpsize SIZE Small data size (if no size, same as --shared)
-h FILENAME, -soname FILENAME
Set internal name of shared library
-I PROGRAM, --dynamic-linker PROGRAM
Set PROGRAM as the dynamic linker to use
-l LIBNAME, --library LIBNAME
Search for library LIBNAME
-L DIRECTORY, --library-path DIRECTORY
Add DIRECTORY to library search path
--sysroot= Override the default sysroot location
-m EMULATION Set emulation
-M, --print-map Print map file on standard output
-n, --nmagic Do not page align data
-N, --omagic Do not page align data, do not make text readonly
--no-omagic Page align data, make text readonly
-o FILE, --output FILE Set output file name
-O Optimize output file
-plugin PLUGIN Load named plugin
-plugin-opt ARG Send arg to last-loaded plugin
-flto Ignored for GCC LTO option compatibility
-flto-partition= Ignored for GCC LTO option compatibility
-fuse-ld= Ignored for GCC linker option compatibility
-Qy Ignored for SVR4 compatibility
-q, --emit-relocs Generate relocations in final output
-r, -i, --relocatable Generate relocatable output
-R FILE, --just-symbols FILE
Just link symbols (if directory, same as --rpath)
-s, --strip-all Strip all symbols
-S, --strip-debug Strip debugging symbols
--strip-discarded Strip symbols in discarded sections
--no-strip-discarded Do not strip symbols in discarded sections
-t, --trace Trace file opens
-T FILE, --script FILE Read linker script
--default-script FILE, -dT Read default linker script
-u SYMBOL, --undefined SYMBOL
Start with undefined reference to SYMBOL
--unique [=SECTION] Don't merge input [SECTION | orphan] sections
-Ur Build global constructor/destructor tables
-v, --version Print version information
-V Print version and emulation information
-x, --discard-all Discard all local symbols
-X, --discard-locals Discard temporary local symbols (default)
--discard-none Don't discard any local symbols
-y SYMBOL, --trace-symbol SYMBOL
Trace mentions of SYMBOL
-Y PATH Default search path for Solaris compatibility
-(, --start-group Start a group
-), --end-group End a group
--accept-unknown-input-arch Accept input files whose architecture cannot be determined
--no-accept-unknown-input-arch
Reject input files whose architecture is unknown
--as-needed Only set DT_NEEDED for following dynamic libs if used
--no-as-needed Always set DT_NEEDED for dynamic libraries mentioned on
the command line
-assert KEYWORD Ignored for SunOS compatibility
-Bdynamic, -dy, -call_shared
Link against shared libraries
-Bstatic, -dn, -non_shared, -static
Do not link against shared libraries
-Bsymbolic Bind global references locally
-Bsymbolic-functions Bind global function references locally
--check-sections Check section addresses for overlaps (default)
--no-check-sections Do not check section addresses for overlaps
--copy-dt-needed-entries Copy DT_NEEDED links mentioned inside DSOs that follow
--no-copy-dt-needed-entries Do not copy DT_NEEDED links mentioned inside DSOs that follow
--cref Output cross reference table
--defsym SYMBOL=EXPRESSION Define a symbol
--demangle [=STYLE] Demangle symbol names [using STYLE]
--embedded-relocs Generate embedded relocs
--fatal-warnings Treat warnings as errors
--no-fatal-warnings Do not treat warnings as errors (default)
-fini SYMBOL Call SYMBOL at unload-time
--force-exe-suffix Force generation of file with .exe suffix
--gc-sections Remove unused sections (on some targets)
--no-gc-sections Don't remove unused sections (default)
--print-gc-sections List removed unused sections on stderr
--no-print-gc-sections Do not list removed unused sections
--hash-size= Set default hash table size close to
--help Print option help
-init SYMBOL Call SYMBOL at load-time
-Map FILE Write a map file
--no-define-common Do not define Common storage
--no-demangle Do not demangle symbol names
--no-keep-memory Use less memory and more disk I/O
--no-undefined Do not allow unresolved references in object files
--allow-shlib-undefined Allow unresolved references in shared libraries
--no-allow-shlib-undefined Do not allow unresolved references in shared libs
--allow-multiple-definition Allow multiple definitions
--no-undefined-version Disallow undefined version
--default-symver Create default symbol version
--default-imported-symver Create default symbol version for imported symbols
--no-warn-mismatch Don't warn about mismatched input files
--no-warn-search-mismatch Don't warn on finding an incompatible library
--no-whole-archive Turn off --whole-archive
--noinhibit-exec Create an output file even if errors occur
-nostdlib Only use library directories specified on
the command line
--oformat TARGET Specify target of output file
--print-output-format Print default output format
--print-sysroot Print current sysroot
-qmagic Ignored for Linux compatibility
--reduce-memory-overheads Reduce memory overheads, possibly taking much longer
--relax Reduce code size by using target specific optimizations
--no-relax Do not use relaxation techniques to reduce code size
--retain-symbols-file FILE Keep only symbols listed in FILE
-rpath PATH Set runtime shared library search path
-rpath-link PATH Set link time shared library search path
-shared, -Bshareable Create a shared library
-pie, --pic-executable Create a position independent executable
--sort-common [=ascending|descending]
Sort common symbols by alignment [in specified order]
--sort-section name|alignment
Sort sections by name or maximum alignment
--spare-dynamic-tags COUNT How many tags to reserve in .dynamic section
--split-by-file [=SIZE] Split output sections every SIZE octets
--split-by-reloc [=COUNT] Split output sections every COUNT relocs
--stats Print memory usage statistics
--target-help Display target specific options
--task-link SYMBOL Do task level linking
--traditional-format Use same format as native linker
--section-start SECTION=ADDRESS
Set address of named section
-Tbss ADDRESS Set address of .bss section
-Tdata ADDRESS Set address of .data section
-Ttext ADDRESS Set address of .text section
-Ttext-segment ADDRESS Set address of text segment
-Trodata-segment ADDRESS Set address of rodata segment
-Tldata-segment ADDRESS Set address of ldata segment
--unresolved-symbols=
How to handle unresolved symbols. is:
ignore-all, report-all, ignore-in-object-files,
ignore-in-shared-libs
--verbose [=NUMBER] Output lots of information during link
--version-script FILE Read version information script
--version-exports-section SYMBOL
Take export symbols list from .exports, using
SYMBOL as the version.
--dynamic-list-data Add data symbols to dynamic list
--dynamic-list-cpp-new Use C++ operator new/delete dynamic list
--dynamic-list-cpp-typeinfo Use C++ typeinfo dynamic list
--dynamic-list FILE Read dynamic list
--warn-common Warn about duplicate common symbols
--warn-constructors Warn if global constructors/destructors are seen
--warn-multiple-gp Warn if the multiple GP values are used
--warn-once Warn only once per undefined symbol
--warn-section-align Warn if start of section changes due to alignment
--warn-shared-textrel Warn if shared object has DT_TEXTREL
--warn-alternate-em Warn if an object has alternate ELF machine code
--warn-unresolved-symbols Report unresolved symbols as warnings
--error-unresolved-symbols Report unresolved symbols as errors
--whole-archive Include all objects from following archives
--wrap SYMBOL Use wrapper functions for SYMBOL
--ignore-unresolved-symbol SYMBOL
Unresolved SYMBOL will not cause an error or warning
--push-state Push state of flags governing input file handling
--pop-state Pop state of flags governing input file handling
@FILE Read options from FILE
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MinGW v4.9.2 64-bit Options - Group 17
C:/WorkLib/MinGW/Bin/../lib/gcc/x86_64-w64-mingw32/4.9.2/../../../../x86_64-w64-mingw32/bin/ld.exe: supported targets: pe-x86-64 pei-x86-64 pe-bigobj-x86-64 elf64-x86-64 elf64-l1om elf64-k1om pe-i386 pei-i386 elf32-i386 elf64-little elf64-big elf32-little elf32-big plugin srec symbolsrec verilog tekhex binary ihex
C:/WorkLib/MinGW/Bin/../lib/gcc/x86_64-w64-mingw32/4.9.2/../../../../x86_64-w64-mingw32/bin/ld.exe: supported emulations: i386pep i386pe
C:/WorkLib/MinGW/Bin/../lib/gcc/x86_64-w64-mingw32/4.9.2/../../../../x86_64-w64-mingw32/bin/ld.exe: emulation specific options:
i386pep:
--base_file Generate a base file for relocatable DLLs
--dll Set image base to the default for DLLs
--file-alignment Set file alignment
--heap Set initial size of the heap
--image-base Set start address of the executable
--major-image-version Set version number of the executable
--major-os-version Set minimum required OS version
--major-subsystem-version Set minimum required OS subsystem version
--minor-image-version Set revision number of the executable
--minor-os-version Set minimum required OS revision
--minor-subsystem-version Set minimum required OS subsystem revision
--section-alignment Set section alignment
--stack Set size of the initial stack
--subsystem [:] Set required OS subsystem [& version]
--support-old-code Support interworking with old code
--[no-]leading-underscore Set explicit symbol underscore prefix mode
--[no-]insert-timestamp Use a real timestamp rather than zero. (default)
This makes binaries non-deterministic
--add-stdcall-alias Export symbols with and without @nn
--disable-stdcall-fixup Don't link _sym to _sym@nn
--enable-stdcall-fixup Link _sym to _sym@nn without warnings
--exclude-symbols sym,sym,... Exclude symbols from automatic export
--exclude-all-symbols Exclude all symbols from automatic export
--exclude-libs lib,lib,... Exclude libraries from automatic export
--exclude-modules-for-implib mod,mod,...
Exclude objects, archive members from auto
export, place into import library instead.
--export-all-symbols Automatically export all globals to DLL
--kill-at Remove @nn from exported symbols
--out-implib Generate import library
--output-def Generate a .DEF file for the built DLL
--warn-duplicate-exports Warn about duplicate exports.
--compat-implib Create backward compatible import libs;
create __imp_ as well.
--enable-auto-image-base Automatically choose image base for DLLs
unless user specifies one
--disable-auto-image-base Do not auto-choose image base. (default)
--dll-search-prefix= When linking dynamically to a dll without
an importlib, use .dll
in preference to lib.dll
--enable-auto-import Do sophisticated linking of _sym to
__imp_sym for DATA references
--disable-auto-import Do not auto-import DATA items from DLLs
--enable-runtime-pseudo-reloc Work around auto-import limitations by
adding pseudo-relocations resolved at
runtime.
--disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for
auto-imported DATA.
--enable-extra-pep-debug Enable verbose debug output when building
or linking to DLLs (esp. auto-import)
--enable-long-section-names Use long COFF section names even in
executable image files
--disable-long-section-names Never use long COFF section names, even
in object files
--high-entropy-va Image is compatible with 64-bit address space
layout randomization (ASLR)
--dynamicbase Image base address may be relocated using
address space layout randomization (ASLR)
--forceinteg Code integrity checks are enforced
--nxcompat Image is compatible with data execution prevention
--no-isolation Image understands isolation but do not isolate the image
--no-seh Image does not use SEH. No SE handler may
be called in this image
--no-bind Do not bind this image
--wdmdriver Driver uses the WDM model
--tsaware Image is Terminal Server aware
--build-id[=STYLE] Generate build ID
i386pe:
--base_file Generate a base file for relocatable DLLs
--dll Set image base to the default for DLLs
--file-alignment Set file alignment
--heap Set initial size of the heap
--image-base Set start address of the executable
--major-image-version Set version number of the executable
--major-os-version Set minimum required OS version
--major-subsystem-version Set minimum required OS subsystem version
--minor-image-version Set revision number of the executable
--minor-os-version Set minimum required OS revision
--minor-subsystem-version Set minimum required OS subsystem revision
--section-alignment Set section alignment
--stack Set size of the initial stack
--subsystem [:] Set required OS subsystem [& version]
--support-old-code Support interworking with old code
--[no-]leading-underscore Set explicit symbol underscore prefix mode
--thumb-entry= Set the entry point to be Thumb
--[no-]insert-timestamp Use a real timestamp rather than zero (default).
This makes binaries non-deterministic
--add-stdcall-alias Export symbols with and without @nn
--disable-stdcall-fixup Don't link _sym to _sym@nn
--enable-stdcall-fixup Link _sym to _sym@nn without warnings
--exclude-symbols sym,sym,... Exclude symbols from automatic export
--exclude-all-symbols Exclude all symbols from automatic export
--exclude-libs lib,lib,... Exclude libraries from automatic export
--exclude-modules-for-implib mod,mod,...
Exclude objects, archive members from auto
export, place into import library instead.
--export-all-symbols Automatically export all globals to DLL
--kill-at Remove @nn from exported symbols
--out-implib Generate import library
--output-def Generate a .DEF file for the built DLL
--warn-duplicate-exports Warn about duplicate exports
--compat-implib Create backward compatible import libs;
create __imp_ as well.
--enable-auto-image-base[=] Automatically choose image base for DLLs
(optionally starting with address) unless
specifically set with --image-base
--disable-auto-image-base Do not auto-choose image base. (default)
--dll-search-prefix= When linking dynamically to a dll without
an importlib, use .dll
in preference to lib.dll
--enable-auto-import Do sophisticated linking of _sym to
__imp_sym for DATA references
--disable-auto-import Do not auto-import DATA items from DLLs
--enable-runtime-pseudo-reloc Work around auto-import limitations by
adding pseudo-relocations resolved at
runtime.
--disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for
auto-imported DATA.
--enable-extra-pe-debug Enable verbose debug output when building
or linking to DLLs (esp. auto-import)
--large-address-aware Executable supports virtual addresses
greater than 2 gigabytes
--disable-large-address-aware Executable does not support virtual
addresses greater than 2 gigabytes
--enable-long-section-names Use long COFF section names even in
executable image files
--disable-long-section-names Never use long COFF section names, even
in object files
--dynamicbase Image base address may be relocated using
address space layout randomization (ASLR)
--forceinteg Code integrity checks are enforced
--nxcompat Image is compatible with data execution prevention
--no-isolation Image understands isolation but do not isolate the image
--no-seh Image does not use SEH. No SE handler may
be called in this image
--no-bind Do not bind this image
--wdmdriver Driver uses the WDM model
--tsaware Image is Terminal Server aware
--build-id[=STYLE] Generate build ID
Report bugs to <>
For bug reporting instructions, please see:
http://sourceforge.net/projects/mingw-w64
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MinGW v5.1.0 32-bit Options - Group 1
Usage: g++.exe [options] file...
Options:
-pass-exit-codes Exit with highest error code from a phase
--help Display this information
--target-help Display target specific command line options
--help={common|optimizers|params|target|warnings|[^]{joined|separate|undocumented}}[,...]
Display specific types of command line options
--version Display compiler version information
-dumpspecs Display all of the built in spec strings
-dumpversion Display the version of the compiler
-dumpmachine Display the compiler's target processor
-print-search-dirs Display the directories in the compiler's search path
-print-libgcc-file-name Display the name of the compiler's companion library
-print-file-name= Display the full path to library
-print-prog-name= Display the full path to compiler component
-print-multiarch Display the target's normalized GNU triplet, used as
a component in the library path
-print-multi-directory Display the root directory for versions of libgcc
-print-multi-lib Display the mapping between command line options and
multiple library search directories
-print-multi-os-directory Display the relative path to OS libraries
-print-sysroot Display the target libraries directory
-print-sysroot-headers-suffix Display the sysroot suffix used to find headers
-Wa, Pass comma-separated on to the assembler
-Wp, Pass comma-separated on to the preprocessor
-Wl, Pass comma-separated on to the linker
-Xassembler Pass on to the assembler
-Xpreprocessor Pass on to the preprocessor
-Xlinker Pass on to the linker
-save-temps Do not delete intermediate files
-save-temps= Do not delete intermediate files
-no-canonical-prefixes Do not canonicalize paths when building relative
prefixes to other gcc components
-pipe Use pipes rather than intermediate files
-time Time the execution of each subprocess
-specs= Override built-in specs with the contents of
-std= Assume that the input sources are for
--sysroot= Use as the root directory for headers
and libraries
-B Add to the compiler's search paths
-v Display the programs invoked by the compiler
-### Like -v but options quoted and commands not executed
-E Preprocess only; do not compile, assemble or link
-S Compile only; do not assemble or link
-c Compile and assemble, but do not link
-o Place the output into
-pie Create a position independent executable
-shared Create a shared library
-x Specify the language of the following input files
Permissible languages include: c c++ assembler none
'none' means revert to the default behavior of
guessing the language based on the file's extension
Options starting with -g, -f, -m, -O, -W, or --param are automatically
passed on to the various sub-processes invoked by g++.exe. In order to pass
other options on to these processes the -W options must be used.
The following options are specific to just the language Ada:
None found. Use --help=Ada to show *all* the options supported by the Ada front-end
The following options are specific to just the language AdaSCIL:
None found. Use --help=AdaSCIL to show *all* the options supported by the AdaSCIL front-end
The following options are specific to just the language AdaWhy:
None found. Use --help=AdaWhy to show *all* the options supported by the AdaWhy front-end
The following options are specific to just the language C:
-lang-asm This switch lacks documentation
The following options are specific to just the language C++:
None found. Use --help=C++ to show *all* the options supported by the C++ front-end
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MinGW v5.1.0 32-bit Options - Group 2
The following options are specific to just the language Fortran:
-J Put MODULE files in 'directory'
-Waliasing Warn about possible aliasing of dummy arguments
-Walign-commons Warn about alignment of COMMON blocks
-Wampersand Warn about missing ampersand in continued
character constants
-Warray-temporaries Warn about creation of array temporaries
-Wc-binding-type Warn if the type of a variable might be not
interoperable with C
-Wcharacter-truncation Warn about truncated character expressions
-Wcompare-reals Warn about equality comparisons involving REAL or
COMPLEX expressions
-Wconversion-extra Warn about most implicit conversions
-Wextra Print extra (possibly unwanted) warnings
-Wfunction-elimination Warn about function call elimination
-Wimplicit-interface Warn about calls with implicit interface
-Wimplicit-procedure Warn about called procedures not explicitly
declared
-Wintrinsic-shadow Warn if a user-procedure has the same name as an
intrinsic
-Wintrinsics-std Warn on intrinsics not part of the selected
standard
-Wline-truncation Warn about truncated source lines
-Wreal-q-constant Warn about real-literal-constants with 'q'
exponent-letter
-Wrealloc-lhs Warn when a left-hand-side array variable is
reallocated
-Wrealloc-lhs-all Warn when a left-hand-side variable is reallocated
-Wsurprising Warn about "suspicious" constructs
-Wtabs Permit nonconforming uses of the tab character
-Wtarget-lifetime Warn if the pointer in a pointer assignment might
outlive its target
-Wunderflow Warn about underflow of numerical constant
expressions
-Wunused-dummy-argument Warn about unused dummy arguments.
-Wuse-without-only Warn about USE statements that have no ONLY
qualifier
-Wzerotrip Warn about zero-trip DO loops
-cpp Enable preprocessing
-cpp= This switch lacks documentation
-faggressive-function-elimination Eliminate multiple function invokations
also for impure functions
-falign-commons Enable alignment of COMMON blocks
-fall-intrinsics All intrinsics procedures are available
regardless of selected standard
-fallow-leading-underscore This switch lacks documentation
-fautomatic Do not treat local variables and COMMON blocks as
if they were named in SAVE statements
-fbackslash Specify that backslash in string introduces an
escape character
-fbacktrace Produce a backtrace when a runtime error is
encountered
-fblas-matmul-limit= Size of the smallest matrix for which matmul will
use BLAS
-fcheck-array-temporaries Produce a warning at runtime if a array temporary
has been created for a procedure argument
-fcheck=[...] Specify which runtime checks are to be performed
-fcoarray= Specify which coarray parallelization should be
used
-fconvert= -fconvert=
The endianness used for unformatted files.
-fcray-pointer Use the Cray Pointer extension
-fd-lines-as-code Ignore 'D' in column one in fixed form
-fd-lines-as-comments Treat lines with 'D' in column one as comments
-fdefault-double-8 Set the default double precision kind to an 8
byte wide type
-fdefault-integer-8 Set the default integer kind to an 8 byte wide
type
-fdefault-real-8 Set the default real kind to an 8 byte wide type
-fdollar-ok Allow dollar signs in entity names
-fdump-core Does nothing. Preserved for backward
compatibility.
-fdump-fortran-optimized Display the code tree after front end optimization
-fdump-fortran-original Display the code tree after parsing
-fdump-parse-tree Display the code tree after parsing; deprecated
option
-fexternal-blas Specify that an external BLAS library should be
used for matmul calls on large-size arrays
-ff2c Use f2c calling convention
-ffixed-form Assume that the source file is fixed form
-ffixed-line-length- Use n as character line width in fixed mode
-ffixed-line-length-none Allow arbitrary character line width in fixed mode
-ffpe-summary=[...] Print summary of floating point exceptions
-ffpe-trap=[...] Stop on following floating point exceptions
-ffree-form Assume that the source file is free form
-ffree-line-length- Use n as character line width in free mode
-ffree-line-length-none Allow arbitrary character line width in free mode
-ffrontend-optimize Enable front end optimization
-fimplicit-none Specify that no implicit typing is allowed,
unless overridden by explicit IMPLICIT statements
-finit-character= Initialize local character variables to ASCII
value n
-finit-integer= Initialize local integer variables to n
-finit-local-zero Initialize local variables to zero (from g77)
-finit-logical= Initialize local logical variables
-finit-real= Initialize local real variables
-finteger-4-integer-8 Interpret any INTEGER(4) as an INTEGER(8)
-fintrinsic-modules-path Specify where to find the compiled intrinsic
modules
-fintrinsic-modules-path= Specify where to find the compiled intrinsic
modules
-fmax-array-constructor= Maximum number of objects in an array constructor
-fmax-identifier-length= Maximum identifier length
-fmax-stack-var-size= Size in bytes of the largest array that will be
put on the stack
-fmax-subrecord-length= Maximum length for subrecords
-fmodule-private Set default accessibility of module entities to
PRIVATE.
-fpack-derived Try to lay out derived types as compactly as
possible
-fprotect-parens Protect parentheses in expressions
-frange-check Enable range checking during compilation
-freal-4-real-10 Interpret any REAL(4) as a REAL(10)
-freal-4-real-16 Interpret any REAL(4) as a REAL(16)
-freal-4-real-8 Interpret any REAL(4) as a REAL(8)
-freal-8-real-10 Interpret any REAL(8) as a REAL(10)
-freal-8-real-16 Interpret any REAL(8) as a REAL(16)
-freal-8-real-4 Interpret any REAL(8) as a REAL(4)
-frealloc-lhs Reallocate the LHS in assignments
-frecord-marker=4 Use a 4-byte record marker for unformatted files
-frecord-marker=8 Use an 8-byte record marker for unformatted files
-frecursive Allocate local variables on the stack to allow
indirect recursion
-frepack-arrays Copy array sections into a contiguous block on
procedure entry
-fsecond-underscore Append a second underscore if the name already
contains an underscore
-fsign-zero Apply negative sign to zero values
-fstack-arrays Put all local arrays on stack.
-funderscoring Append underscores to externally visible names
-fwhole-file Does nothing. Preserved for backward
compatibility.
-nocpp Disable preprocessing
-static-libgfortran Statically link the GNU Fortran helper library
(libgfortran)
-std=f2003 Conform to the ISO Fortran 2003 standard
-std=f2008 Conform to the ISO Fortran 2008 standard
-std=f2008ts Conform to the ISO Fortran 2008 standard
including TS 29113
-std=f95 Conform to the ISO Fortran 95 standard
-std=gnu Conform to nothing in particular
-std=legacy Accept extensions to support legacy code
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MinGW v5.1.0 32-bit Options - Group 3
The following options are specific to just the language Go:
-L This switch lacks documentation
-fgo-check-divide-overflow Add explicit checks for division overflow in
INT_MIN / -1
-fgo-check-divide-zero Add explicit checks for division by zero
-fgo-dump- Dump Go frontend internal information
-fgo-optimize- Turn on optimization passes in the frontend
-fgo-pkgpath= Set Go package path
-fgo-prefix= Set package-specific prefix for exported Go names
-fgo-relative-import-path= -fgo-relative-import-path= Treat a relative
import as relative to path
-frequire-return-statement Functions which return values must end with
return statements
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MinGW v5.1.0 32-bit Options - Group 4
The following options are specific to just the language Java:
--CLASSPATH This switch lacks documentation
--bootclasspath This switch lacks documentation
--classpath This switch lacks documentation
--encoding This switch lacks documentation
--extdirs This switch lacks documentation
--output-class-directory This switch lacks documentation
--output-class-directory= This switch lacks documentation
--resource This switch lacks documentation
--resource= This switch lacks documentation
-CLASSPATH This switch lacks documentation
-MD_ This switch lacks documentation
-MMD_ This switch lacks documentation
-Wall-deprecation This switch lacks documentation
-Wall-javadoc This switch lacks documentation
-Wassert-identifier This switch lacks documentation
-Wboxing This switch lacks documentation
-Wchar-concat This switch lacks documentation
-Wcondition-assign This switch lacks documentation
-Wconstructor-name This switch lacks documentation
-Wdep-ann This switch lacks documentation
-Wdiscouraged This switch lacks documentation
-Wempty-block This switch lacks documentation
-Wenum-identifier This switch lacks documentation
-Wenum-switch This switch lacks documentation
-Wextraneous-semicolon Warn if deprecated empty statements are found
-Wfallthrough This switch lacks documentation
-Wfield-hiding This switch lacks documentation
-Wfinal-bound This switch lacks documentation
-Wfinally This switch lacks documentation
-Wforbidden This switch lacks documentation
-Whiding This switch lacks documentation
-Windirect-static This switch lacks documentation
-Wintf-annotation This switch lacks documentation
-Wintf-non-inherited This switch lacks documentation
-Wjavadoc This switch lacks documentation
-Wlocal-hiding This switch lacks documentation
-Wmasked-catch-block This switch lacks documentation
-Wnls This switch lacks documentation
-Wno-effect-assign This switch lacks documentation
-Wnull This switch lacks documentation
-Wout-of-date Warn if .class files are out of date
-Wover-ann This switch lacks documentation
-Wparam-assign This switch lacks documentation
-Wpkg-default-method This switch lacks documentation
-Wraw This switch lacks documentation
-Wredundant-modifiers Warn if modifiers are specified when not necessary
-Wserial This switch lacks documentation
-Wspecial-param-hiding This switch lacks documentation
-Wstatic-access This switch lacks documentation
-Wstatic-receiver This switch lacks documentation
-Wsuppress This switch lacks documentation
-Wsynthetic-access This switch lacks documentation
-Wtasks This switch lacks documentation
-Wtype-hiding This switch lacks documentation
-Wuncheck This switch lacks documentation
-Wunnecessary-else This switch lacks documentation
-Wunqualified-field This switch lacks documentation
-Wunused-argument This switch lacks documentation
-Wunused-import This switch lacks documentation
-Wunused-label Warn when a label is unused
-Wunused-local This switch lacks documentation
-Wunused-private This switch lacks documentation
-Wunused-thrown This switch lacks documentation
-Wuseless-type-check This switch lacks documentation
-Wvarargs-cast This switch lacks documentation
-Wwarning-token This switch lacks documentation
-bootclasspath This switch lacks documentation
-classpath This switch lacks documentation
-encoding This switch lacks documentation
--CLASSPATH Deprecated; use --classpath instead
-fassert Permit the use of the assert keyword
-fassume-compiled This switch lacks documentation
-fassume-compiled= This switch lacks documentation
-faux-classpath This switch lacks documentation
--bootclasspath= Replace system path
-fbootstrap-classes Generated should be loaded by bootstrap loader
-fcheck-references Generate checks for references to NULL
--classpath= Set class path
-fcompile-resource= This switch lacks documentation
-fdisable-assertions This switch lacks documentation
-fdisable-assertions= This switch lacks documentation
-femit-class-file Output a class file
-femit-class-files Alias for -femit-class-file
-fenable-assertions This switch lacks documentation
-fenable-assertions= This switch lacks documentation
--encoding= Choose input encoding (defaults from your locale)
--extdirs= Set the extension directory path
-ffilelist-file Input file is a file with a list of filenames to
compile
-fforce-classes-archive-check Always check for non gcj generated classes
archives
-fhash-synchronization Assume the runtime uses a hash table to map an
object to its synchronization structure
-findirect-classes Generate instances of Class at runtime
-findirect-dispatch Use offset tables for virtual method calls
-finline-functions Integrate functions not declared "inline" into
their callers when profitable
-fjni Assume native functions are implemented using JNI
-foptimize-static-class-initialization Enable optimization of static class
initialization code
-foutput-class-dir= This switch lacks documentation
-freduced-reflection Reduce the amount of reflection meta-data
generated
-fsaw-java-file This switch lacks documentation
-fsource-filename= This switch lacks documentation
-fsource= Set the source language version
-fstore-check Enable assignability checks for stores into
object arrays
-ftarget= Set the target VM version
-fuse-atomic-builtins Generate code for built-in atomic operations
-fuse-boehm-gc Generate code for the Boehm GC
-fuse-divide-subroutine Call a library routine to do integer divisions
-version Display the compiler's version
The following options are specific to just the language LTO:
-fltrans Run the link-time optimizer in local
transformation (LTRANS) mode.
-fltrans-output-list= Specify a file to which a list of files output by
LTRANS is written.
-fresolution= The resolution file
-fwpa Run the link-time optimizer in whole program
analysis (WPA) mode.
-fwpa= Whole program analysis (WPA) mode with number of
parallel jobs specified.
The following options are specific to just the language ObjC:
None found. Use --help=ObjC to show *all* the options supported by the ObjC front-end
The following options are specific to just the language ObjC++:
-fobjc-call-cxx-cdtors Generate special Objective-C methods to
initialize/destroy non-POD C++ ivars, if needed
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MinGW v5.1.0 32-bit Options - Group 5
The following options are language-related:
--all-warnings This switch lacks documentation
--ansi This switch lacks documentation
--assert This switch lacks documentation
--assert= This switch lacks documentation
--comments This switch lacks documentation
--comments-in-macros This switch lacks documentation
--define-macro This switch lacks documentation
--define-macro= This switch lacks documentation
--dependencies This switch lacks documentation
--dump This switch lacks documentation
--dump= This switch lacks documentation
--imacros This switch lacks documentation
--imacros= This switch lacks documentation
--include This switch lacks documentation
--include-barrier This switch lacks documentation
--include-directory This switch lacks documentation
--include-directory-after This switch lacks documentation
--include-directory-after= This switch lacks documentation
--include-directory= This switch lacks documentation
--include-prefix This switch lacks documentation
--include-prefix= This switch lacks documentation
--include-with-prefix This switch lacks documentation
--include-with-prefix-after This switch lacks documentation
--include-with-prefix-after= This switch lacks documentation
--include-with-prefix-before This switch lacks documentation
--include-with-prefix-before= This switch lacks documentation
--include-with-prefix= This switch lacks documentation
--include= This switch lacks documentation
--no-line-commands This switch lacks documentation
--no-standard-includes This switch lacks documentation
--no-standard-libraries This switch lacks documentation
--no-warnings This switch lacks documentation
--output This switch lacks documentation
--output-pch= This switch lacks documentation
--output= This switch lacks documentation
--pedantic This switch lacks documentation
--preprocess This switch lacks documentation
--print-missing-file-dependencies This switch lacks documentation
--trace-includes This switch lacks documentation
--traditional-cpp This switch lacks documentation
--trigraphs This switch lacks documentation
--undefine-macro This switch lacks documentation
--undefine-macro= This switch lacks documentation
--user-dependencies This switch lacks documentation
--verbose This switch lacks documentation
--write-dependencies This switch lacks documentation
--write-user-dependencies This switch lacks documentation
-A= Assert the to . Putting '-'
before disables the to
-C Do not discard comments
-CC Do not discard comments in macro expansions
-D[=] Define a with as its value. If
just is given, is taken to be 1
-E This switch lacks documentation
-F Add to the end of the main framework
include path
-H Print the name of header files as they are used
-I Add to the end of the main include path
-M Generate make dependencies
-MD Generate make dependencies and compile
-MF Write dependency output to the given file
-MG Treat missing header files as generated files
-MM Like -M but ignore system header files
-MMD Like -MD but ignore system header files
-MP Generate phony targets for all headers
-MQ Add a MAKE-quoted target
-MT Add an unquoted target
-P Do not generate #line directives
-U Undefine
-Wabi Warn about things that will change when compiling
with an ABI-compliant compiler
-Wabi-tag Warn if a subobject has an abi_tag attribute that
the complete object type does not have
-Wabi= Warn about things that change between the current
-fabi-version and the specified version
-Waddress Warn about suspicious uses of memory addresses
-Wall Enable most warning messages
-Wassign-intercept Warn whenever an Objective-C assignment is being
intercepted by the garbage collector
-Wbad-function-cast Warn about casting functions to incompatible types
-Wbool-compare Warn about boolean expression compared with an
integer value different from true/false
-Wbuiltin-macro-redefined Warn when a built-in preprocessor macro is
undefined or redefined
-Wc++-compat Warn about C constructs that are not in the
common subset of C and C++
-Wc++0x-compat Deprecated in favor of -Wc++11-compat
-Wc++11-compat Warn about C++ constructs whose meaning differs
between ISO C++ 1998 and ISO C++ 2011
-Wc++14-compat Warn about C++ constructs whose meaning differs
between ISO C++ 2011 and ISO C++ 2014
-Wc90-c99-compat Warn about features not present in ISO C90, but
present in ISO C99
-Wc99-c11-compat Warn about features not present in ISO C99, but
present in ISO C11
-Wcast-qual Warn about casts which discard qualifiers
-Wchar-subscripts Warn about subscripts whose type is "char"
-Wchkp Warn about memory access errors found by Pointer
Bounds Checker
-Wclobbered Warn about variables that might be changed by
"longjmp" or "vfork"
-Wcomment Warn about possibly nested block comments, and
C++ comments spanning more than one physical line
-Wcomments Synonym for -Wcomment
-Wconditionally-supported Warn for conditionally-supported constructs
-Wconversion Warn for implicit type conversions that may
change a value
-Wconversion-null Warn for converting NULL from/to a non-pointer
type
-Wcpp Warn when a #warning directive is encountered
-Wctor-dtor-privacy Warn when all constructors and destructors are
private
-Wdate-time Warn about __TIME__, __DATE__ and __TIMESTAMP__
usage
-Wdeclaration-after-statement Warn when a declaration is found after a
statement
-Wdelete-incomplete Warn when deleting a pointer to incomplete type
-Wdelete-non-virtual-dtor Warn about deleting polymorphic objects with non-
virtual destructors
-Wdeprecated Warn if a deprecated compiler feature, class,
method, or field is used
-Wdesignated-init Warn about positional initialization of structs
requiring designated initializers
-Wdiscarded-array-qualifiers Warn if qualifiers on arrays which are pointer
targets are discarded
-Wdiscarded-qualifiers Warn if type qualifiers on pointers are discarded
-Wdiv-by-zero Warn about compile-time integer division by zero
-Wdouble-promotion Warn about implicit conversions from "float" to
"double"
-Weffc++ Warn about violations of Effective C++ style rules
-Wempty-body Warn about an empty body in an if or else
statement
-Wendif-labels Warn about stray tokens after #elif and #endif
-Wenum-compare Warn about comparison of different enum types
-Werror Treat all warnings as errors
-Werror-implicit-function-declaration This switch is deprecated; use
-Werror=implicit-function-declaration instead
-Wfloat-conversion Warn for implicit type conversions that cause
loss of floating point precision
-Wfloat-equal Warn if testing floating point numbers for
equality
-Wformat Warn about printf/scanf/strftime/strfmon format
string anomalies
-Wformat-contains-nul Warn about format strings that contain NUL bytes
-Wformat-extra-args Warn if passing too many arguments to a function
for its format string
-Wformat-nonliteral Warn about format strings that are not literals
-Wformat-security Warn about possible security problems with format
functions
-Wformat-signedness Warn about sign differences with format functions
-Wformat-y2k Warn about strftime formats yielding 2-digit years
-Wformat-zero-length Warn about zero-length formats
-Wformat= Warn about printf/scanf/strftime/strfmon format
string anomalies
-Wignored-qualifiers Warn whenever type qualifiers are ignored.
-Wimplicit Warn about implicit declarations
-Wimplicit-function-declaration Warn about implicit function declarations
-Wimplicit-int Warn when a declaration does not specify a type
-Wimport This switch lacks documentation
-Wincompatible-pointer-types Warn when there is a conversion between pointers
that have incompatible types
-Winherited-variadic-ctor Warn about C++11 inheriting constructors when the
base has a variadic constructor
-Winit-self Warn about variables which are initialized to
themselves
-Wint-conversion Warn about incompatible integer to pointer and
pointer to integer conversions
-Wint-to-pointer-cast Warn when there is a cast to a pointer from an
integer of a different size
-Winvalid-offsetof Warn about invalid uses of the "offsetof" macro
-Winvalid-pch Warn about PCH files that are found but not used
-Wjump-misses-init Warn when a jump misses a variable initialization
-Wliteral-suffix Warn when a string or character literal is
followed by a ud-suffix which does not begin with
an underscore.
-Wlogical-not-parentheses Warn when logical not is used on the left hand
side operand of a comparison
-Wlogical-op Warn when a logical operator is suspiciously
always evaluating to true or false
-Wlong-long Do not warn about using "long long" when -pedantic
-Wmain Warn about suspicious declarations of "main"
-Wmaybe-uninitialized Warn about maybe uninitialized automatic variables
-Wmemset-transposed-args Warn about suspicious calls to memset where the
third argument is constant literal zero and the
second is not
-Wmissing-braces Warn about possibly missing braces around
initializers
-Wmissing-declarations Warn about global functions without previous
declarations
-Wmissing-field-initializers Warn about missing fields in struct initializers
-Wmissing-format-attribute This switch lacks documentation
-Wmissing-include-dirs Warn about user-specified include directories
that do not exist
-Wmissing-parameter-type Warn about function parameters declared without a
type specifier in K&R-style functions
-Wmissing-prototypes Warn about global functions without prototypes
-Wmudflap This switch lacks documentation
-Wmultichar Warn about use of multi-character character
constants
-Wnarrowing Warn about narrowing conversions within { } that
are ill-formed in C++11
-Wnested-externs Warn about "extern" declarations not at file scope
-Wnoexcept Warn when a noexcept expression evaluates to
false even though the expression can't actually
throw
-Wnon-template-friend Warn when non-templatized friend functions are
declared within a template
-Wnon-virtual-dtor Warn about non-virtual destructors
-Wnonnull Warn about NULL being passed to argument slots
marked as requiring non-NULL
-Wnormalized This switch lacks documentation
-Wnormalized= Warn about non-normalised Unicode strings
-Wold-style-cast Warn if a C-style cast is used in a program
-Wold-style-declaration Warn for obsolescent usage in a declaration
-Wold-style-definition Warn if an old-style parameter definition is used
-Wopenmp-simd Warn if a simd directive is overridden by the
vectorizer cost model
-Woverlength-strings Warn if a string is longer than the maximum
portable length specified by the standard
-Woverloaded-virtual Warn about overloaded virtual function names
-Woverride-init Warn about overriding initializers without side
effects
-Wpacked-bitfield-compat Warn about packed bit-fields whose offset changed
in GCC 4.4
-Wparentheses Warn about possibly missing parentheses
-Wpedantic Issue warnings needed for strict compliance to
the standard
-Wpedantic-ms-format Warn about none ISO msvcrt scanf/printf width
extensions
-Wpmf-conversions Warn when converting the type of pointers to
member functions
-Wpointer-arith Warn about function pointer arithmetic
-Wpointer-sign Warn when a pointer differs in signedness in an
assignment
-Wpointer-to-int-cast Warn when a pointer is cast to an integer of a
different size
-Wpragmas Warn about misuses of pragmas
-Wproperty-assign-default Warn if a property for an Objective-C object has
no assign semantics specified
-Wprotocol Warn if inherited methods are unimplemented
-Wpsabi This switch lacks documentation
-Wredundant-decls Warn about multiple declarations of the same
object
-Wreorder Warn when the compiler reorders code
-Wreturn-type Warn whenever a function's return type defaults
to "int" (C), or about inconsistent return types
(C++)
-Wselector Warn if a selector has multiple methods
-Wsequence-point Warn about possible violations of sequence point
rules
-Wshadow-ivar Warn if a local declaration hides an instance
variable
-Wshift-count-negative Warn if shift count is negative
-Wshift-count-overflow Warn if shift count >= width of type
-Wsign-compare Warn about signed-unsigned comparisons
-Wsign-conversion Warn for implicit type conversions between signed
and unsigned integers
-Wsign-promo Warn when overload promotes from unsigned to
signed
-Wsized-deallocation Warn about missing sized deallocation functions
-Wsizeof-array-argument Warn when sizeof is applied on a parameter
declared as an array
-Wsizeof-pointer-memaccess Warn about suspicious length parameters to
certain string functions if the argument uses
sizeof
-Wstrict-aliasing= Warn about code which might break strict aliasing
rules
-Wstrict-null-sentinel Warn about uncasted NULL used as sentinel
-Wstrict-overflow= Warn about optimizations that assume that signed
overflow is undefined
-Wstrict-prototypes Warn about unprototyped function declarations
-Wstrict-selector-match Warn if type signatures of candidate methods do
not match exactly
-Wsuggest-attribute=format Warn about functions which might be candidates
for format attributes
-Wsuggest-override Suggest that the override keyword be used when
the declaration of a virtual function overrides
another.
-Wswitch Warn about enumerated switches, with no default,
missing a case
-Wswitch-bool Warn about switches with boolean controlling
expression
-Wswitch-default Warn about enumerated switches missing a
"default:" statement
-Wswitch-enum Warn about all enumerated switches missing a
specific case
-Wsync-nand Warn when __sync_fetch_and_nand and
__sync_nand_and_fetch built-in functions are used
-Wsynth Deprecated. This switch has no effect
-Wsystem-headers Do not suppress warnings from system headers
-Wtraditional Warn about features not present in traditional C
-Wtraditional-conversion Warn of prototypes causing type conversions
different from what would happen in the absence
of prototype
-Wtrigraphs Warn if trigraphs are encountered that might
affect the meaning of the program
-Wundeclared-selector Warn about @selector()s without previously
declared methods
-Wundef Warn if an undefined macro is used in an #if
directive
-Wuninitialized Warn about uninitialized automatic variables
-Wunknown-pragmas Warn about unrecognized pragmas
-Wunsuffixed-float-constants Warn about unsuffixed float constants
-Wunused Enable all -Wunused- warnings
-Wunused-local-typedefs Warn when typedefs locally defined in a function
are not used
-Wunused-macros Warn about macros defined in the main file that
are not used
-Wunused-result Warn if a caller of a function, marked with
attribute warn_unused_result, does not use its
return value
-Wuseless-cast Warn about useless casts
-Wvarargs Warn about questionable usage of the macros used
to retrieve variable arguments
-Wvariadic-macros Warn about using variadic macros
-Wvirtual-move-assign Warn if a virtual base has a non-trivial move
assignment operator
-Wvla Warn if a variable length array is used
-Wvolatile-register-var Warn when a register variable is declared volatile
-Wwrite-strings In C++, nonzero means warn about deprecated
conversion from string literals to 'char *'. In
C, similar warning, except that the conversion is
of course not deprecated by the ISO C standard.
-Wzero-as-null-pointer-constant Warn when a literal '0' is used as null
pointer
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MinGW v5.1.0 32-bit Options - Group 6
-ansi A synonym for -std=c89 (for C) or -std=c++98 (for
C++)
-d Enable dumps from specific passes of the compiler
-fRTS= Select the runtime
-fabi-compat-version= The version of the C++ ABI used for -Wabi
warnings and link compatibility aliases
-faccess-control Enforce class member access control semantics
-fada-spec-parent= -fada-spec-parent=unit Dump Ada specs as child
units of given parent
-fall-virtual This switch lacks documentation
-fallow-parameterless-variadic-functions Allow variadic functions without
named parameter
-falt-external-templates No longer supported
-fasm Recognize the "asm" keyword
-fbuilding-libgcc This switch lacks documentation
-fbuiltin Recognize built-in functions
-fbuiltin- This switch lacks documentation
-fcanonical-system-headers Where shorter, use canonicalized paths to systems
headers.
-fcheck-pointer-bounds Add Pointer Bounds Checker instrumentation.
fchkp-* flags are used to control
instrumentation. Currently available for C, C++
and ObjC.
-fchkp-check-incomplete-type Generate pointer bounds checks for variables
with incomplete type
-fchkp-check-read Generate checks for all read accesses to memory.
-fchkp-check-write Generate checks for all write accesses to memory.
-fchkp-first-field-has-own-bounds Forces Pointer Bounds Checker to use
narrowed bounds for address of the first field in
the structure. By default pointer to the first
field has the same bounds as pointer to the whole
structure.
-fchkp-instrument-calls Generate bounds passing for calls.
-fchkp-instrument-marked-only Instrument only functions marked with
bnd_instrument attribute.
-fchkp-narrow-bounds Control how Pointer Bounds Checker handle
pointers to object fields. When narrowing is on,
field bounds are used. Otherwise full object
bounds are used.
-fchkp-narrow-to-innermost-array Forces Pointer Bounds Checker to use bounds
of the innermost arrays in case of nested static
arryas access. By default outermost array is
used.
-fchkp-optimize Allow Pointer Bounds Checker optimizations. By
default allowed on optimization levels >0.
-fchkp-store-bounds Generate bounds stores for pointer writes.
-fchkp-treat-zero-dynamic-size-as-infinite With this option zero size
obtained dynamically for objects with incomplete
type will be treated as infinite.
-fchkp-use-fast-string-functions Allow to use *_nobnd versions of string
functions by Pointer Bounds Checker.
-fchkp-use-nochk-string-functions Allow to use *_nochk versions of string
functions by Pointer Bounds Checker.
-fchkp-use-static-bounds Use statically initialized variable for vars
bounds instead of generating them each time it is
required.
-fchkp-use-static-const-bounds Use statically initialized variable for
constant bounds instead of generating them each
time it is required.
-fchkp-use-wrappers Transform instrumented builtin calls into calls
to wrappers.
-fchkp-zero-input-bounds-for-main Use zero bounds for all incoming arguments
in 'main' function. It helps when instrumented
binaries are used with legacy libs.
-fcilkplus Enable Cilk Plus
-fcond-mismatch Allow the arguments of the '?' operator to have
different types
-fconserve-space Does nothing. Preserved for backward
compatibility.
-fconst-string-class= Use class for constant strings
-fconstexpr-depth= Specify maximum constexpr recursion depth
-fdebug-cpp Emit debug annotations during preprocessing
-fdeclone-ctor-dtor Factor complex constructors and destructors to
favor space over speed
-fdeduce-init-list enable deduction of std::initializer_list for a
template type parameter from a brace-enclosed
initializer-list
-fdefault-inline Does nothing. Preserved for backward
compatibility.
-fdirectives-only Preprocess directives only.
-fdollars-in-identifiers Permit '$' as an identifier character
-fdump-ada-spec Write all declarations as Ada code transitively
-fdump-ada-spec-slim Write all declarations as Ada code for the given
file only
-felide-constructors This switch lacks documentation
-femit-struct-debug-baseonly Aggressive reduced debug info for structs
-femit-struct-debug-detailed= Detailed reduced debug info for
structs
-femit-struct-debug-reduced Conservative reduced debug info for structs
-fenforce-eh-specs Generate code to check exception specifications
-fenum-int-equiv This switch lacks documentation
-fexec-charset= Convert all strings and character constants to
character set
-fext-numeric-literals Interpret imaginary, fixed-point, or other gnu
number suffix as the corresponding number literal
rather than a user-defined number literal.
-fextended-identifiers Permit universal character names (\u and \U) in
identifiers
-fextern-tls-init Support dynamic initialization of thread-local
variables in a different translation unit
-fexternal-templates This switch lacks documentation
-ffor-scope Scope of for-init-statement variables is local to
the loop
-ffreestanding Do not assume that standard C libraries and
"main" exist
-ffriend-injection Inject friend functions into enclosing namespace
-fgnu-keywords Recognize GNU-defined keywords
-fgnu-runtime Generate code for GNU runtime environment
-fgnu89-inline Use traditional GNU semantics for inline functions
-fguiding-decls This switch lacks documentation
-fhandle-exceptions This switch lacks documentation
-fhonor-std This switch lacks documentation
-fhosted Assume normal C execution environment
-fhuge-objects No longer supported
-fimplement-inlines Export functions even if they can be inlined
-fimplicit-inline-templates Emit implicit instantiations of inline templates
-fimplicit-templates Emit implicit instantiations of templates
-finput-charset= Specify the default character set for source files
-fvisibility=[private|protected|public|package] Set the default symbol
visibility
-fkeep-inline-dllexport Don't emit dllexported inline functions unless
needed
-flabels-ok This switch lacks documentation
-flax-vector-conversions Allow implicit conversions between vectors with
differing numbers of subparts and/or differing
element types.
-flocal-ivars Allow access to instance variables as if they
were local declarations within instance method
implementations.
-fms-extensions Don't warn about uses of Microsoft extensions
-fmudflap This switch lacks documentation
-fmudflapir This switch lacks documentation
-fmudflapth This switch lacks documentation
-fname-mangling-version- This switch lacks documentation
-fnew-abi This switch lacks documentation
-fnext-runtime Generate code for NeXT (Apple Mac OS X) runtime
environment
-fnil-receivers Assume that receivers of Objective-C messages may
be nil
-fnonansi-builtins This switch lacks documentation
-fnonnull-objects This switch lacks documentation
-fnothrow-opt Treat a throw() exception specification as
noexcept to improve code size
-fobjc-abi-version= Specify which ABI to use for Objective-C family
code and meta-data generation.
-fobjc-direct-dispatch Allow fast jumps to the message dispatcher
-fobjc-exceptions Enable Objective-C exception and synchronization
syntax
-fobjc-gc Enable garbage collection (GC) in Objective-C/
Objective-C++ programs
-fobjc-nilcheck Enable inline checks for nil receivers with the
NeXT runtime and ABI version 2.
-fobjc-sjlj-exceptions Enable Objective-C setjmp exception handling
runtime
-fobjc-std=objc1 Conform to the Objective-C 1.0 language as
implemented in GCC 4.0
-fopenacc Enable OpenACC
-fopenmp Enable OpenMP (implies -frecursive in Fortran)
-fopenmp-simd Enable OpenMP's SIMD directives
-foperator-names Recognize C++ keywords like "compl" and "xor"
-foptional-diags Does nothing. Preserved for backward
compatibility.
-fpch-deps This switch lacks documentation
-fpch-preprocess Look for and use PCH files even when preprocessing
-fpermissive Downgrade conformance errors to warnings
-fplan9-extensions Enable Plan 9 language extensions
-fpreprocessed Treat the input file as already preprocessed
-fpretty-templates -fno-pretty-templates Do not pretty-print
template specializations as the template
signature followed by the arguments
-freplace-objc-classes Used in Fix-and-Continue mode to indicate that
object files may be swapped in at runtime
-frepo Enable automatic template instantiation
-frtti Generate run time type descriptor information
-fshort-double Use the same size for double as for float
-fshort-enums Use the narrowest integer type possible for
enumeration types
-fshort-wchar Force the underlying type for "wchar_t" to be
"unsigned short"
-fsigned-bitfields When "signed" or "unsigned" is not given make the
bitfield signed
-fsigned-char Make "char" signed by default
-fsized-deallocation Enable C++14 sized deallocation support
-fsquangle This switch lacks documentation
-fstats Display statistics accumulated during compilation
-fstrict-enums Assume that values of enumeration type are always
within the minimum range of that type
-fstrict-prototype This switch lacks documentation
-ftabstop= Distance between tab stops for column reporting
-ftemplate-backtrace-limit= Set the maximum number of template instantiation
notes for a single warning or error
-ftemplate-depth- This switch lacks documentation
-ftemplate-depth= Specify maximum template instantiation depth
-fthis-is-variable This switch lacks documentation
-fno-threadsafe-statics Do not generate thread-safe code for initializing
local statics
-ftrack-macro-expansion This switch lacks documentation
-ftrack-macro-expansion= -ftrack-macro-expansion=<0|1|2> Track locations
of tokens coming from macro expansion and display
them in error messages
-funsigned-bitfields When "signed" or "unsigned" is not given make the
bitfield unsigned
-funsigned-char Make "char" unsigned by default
-fuse-cxa-atexit Use __cxa_atexit to register destructors
-fuse-cxa-get-exception-ptr Use __cxa_get_exception_ptr in exception handling
-fvisibility-inlines-hidden Marks all inlined functions and methods as having
hidden visibility
-fvisibility-ms-compat Changes visibility to match Microsoft Visual
Studio by default
-fvtable-gc No longer supported
-fvtable-thunks No longer supported
-fweak Emit common-like symbols as weak symbols
-fwide-exec-charset= Convert all wide strings and character constants
to character set
-fworking-directory Generate a #line directive pointing at the
current working directory
-fxref No longer supported
-fzero-link Generate lazy class lookup (via objc_getClass())
for use in Zero-Link mode
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MinGW v5.1.0 32-bit Options - Group 7
-gant Catch typos
-gen-decls Dump declarations to a .decl file
-gnat Specify options to GNAT
-gnatO Set name of output ALI file (internal switch)
-idirafter Add to the end of the system include path
-imacros Accept definition of macros in
-imultilib Set to be the multilib include subdirectory
-include Include the contents of before other files
-iprefix Specify as a prefix for next two options
-iquote Add to the end of the quote include path
-isysroot Set to be the system root directory
-isystem Add to the start of the system include path
-iwithprefix Add to the end of the system include path
-iwithprefixbefore Add to the end of the main include path
-nostdinc Do not search standard system include directories
(those specified with -isystem will still be used)
-nostdinc++ Do not search standard system include directories
for C++
-nostdlib Do not look for object files in standard path
-o Place output into
-pedantic This switch lacks documentation
-print-objc-runtime-info Generate C header of platform-specific features
-remap Remap file names when including files
-std=c++03 Conform to the ISO 1998 C++ standard revised by
the 2003 technical corrigendum
-std=c++0x Deprecated in favor of -std=c++11
-std=c++11 Conform to the ISO 2011 C++ standard
-std=c++14 Conform to the ISO 2014 C++ standard
(experimental and incomplete support)
-std=c++17 This switch lacks documentation
-std=c++1y Deprecated in favor of -std=c++14
-std=c++1z Conform to the ISO 2017(?) C++ draft standard
(experimental and incomplete support)
-std=c++98 Conform to the ISO 1998 C++ standard revised by
the 2003 technical corrigendum
-std=c11 Conform to the ISO 2011 C standard (experimental
and incomplete support)
-std=c1x Deprecated in favor of -std=c11
-std=c89 Conform to the ISO 1990 C standard
-std=c90 Conform to the ISO 1990 C standard
-std=c99 Conform to the ISO 1999 C standard
-std=c9x Deprecated in favor of -std=c99
-std=gnu++03 Conform to the ISO 1998 C++ standard revised by
the 2003 technical corrigendum with GNU extensions
-std=gnu++0x Deprecated in favor of -std=gnu++11
-std=gnu++11 Conform to the ISO 2011 C++ standard with GNU
extensions (experimental and incomplete support)
-std=gnu++14 Conform to the ISO 2014 C++ standard with GNU
extensions (experimental and incomplete support)
-std=gnu++17 This switch lacks documentation
-std=gnu++1y This switch lacks documentation
-std=gnu++1z Conform to the ISO 201z(7?) C++ draft standard
with GNU extensions (experimental and incomplete
support)
-std=gnu++98 Conform to the ISO 1998 C++ standard revised by
the 2003 technical corrigendum with GNU extensions
-std=gnu11 Conform to the ISO 2011 C standard with GNU
extensions (experimental and incomplete support)
-std=gnu1x Deprecated in favor of -std=gnu11
-std=gnu89 Conform to the ISO 1990 C standard with GNU
extensions
-std=gnu90 Conform to the ISO 1990 C standard with GNU
extensions
-std=gnu99 Conform to the ISO 1999 C standard with GNU
extensions
-std=gnu9x Deprecated in favor of -std=gnu99
-std=iso9899:1990 Conform to the ISO 1990 C standard
-std=iso9899:199409 Conform to the ISO 1990 C standard as amended in
1994
-std=iso9899:1999 Conform to the ISO 1999 C standard
-std=iso9899:199x Deprecated in favor of -std=iso9899:1999
-std=iso9899:2011 Conform to the ISO 2011 C standard (experimental
and incomplete support)
-traditional-cpp Enable traditional preprocessing
-trigraphs Support ISO C trigraphs
-undef Do not predefine system-specific and GCC-specific
macros
-v Enable verbose output
-w Suppress warnings
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MinGW v5.1.0 32-bit Options - Group 8
The --param option recognizes the following as parameters:
predictable-branch-outcome Maximal estimated outcome of branch considered
predictable
inline-min-speedup The minimal estimated speedup allowing inliner to
ignore inline-insns-single and inline-isnsns-auto
max-inline-insns-single The maximum number of instructions in a single
function eligible for inlining
max-inline-insns-auto The maximum number of instructions when
automatically inlining
max-inline-insns-recursive The maximum number of instructions inline
function can grow to via recursive inlining
max-inline-insns-recursive-auto The maximum number of instructions non-inline
function can grow to via recursive inlining
max-inline-recursive-depth The maximum depth of recursive inlining for
inline functions
max-inline-recursive-depth-auto The maximum depth of recursive inlining for
non-inline functions
min-inline-recursive-probability Inline recursively only when the probability
of call being executed exceeds the parameter
max-early-inliner-iterations The maximum number of nested indirect inlining
performed by early inliner
comdat-sharing-probability Probability that COMDAT function will be shared
with different compilation unit
partial-inlining-entry-probability Maximum probability of the entry BB of
split region (in percent relative to entry BB of
the function) to make partial inlining happen
max-variable-expansions-in-unroller If -fvariable-expansion-in-unroller is
used, the maximum number of times that an
individual variable will be expanded during loop
unrolling
min-vect-loop-bound If -ftree-vectorize is used, the minimal loop
bound of a loop to be considered for vectorization
max-delay-slot-insn-search The maximum number of instructions to consider to
fill a delay slot
max-delay-slot-live-search The maximum number of instructions to consider to
find accurate live register information
max-pending-list-length The maximum length of scheduling's pending
operations list
max-modulo-backtrack-attempts The maximum number of backtrack attempts the
scheduler should make when modulo scheduling a
loop
large-function-insns The size of function body to be considered large
large-function-growth Maximal growth due to inlining of large function
(in percent)
large-unit-insns The size of translation unit to be considered
large
inline-unit-growth How much can given compilation unit grow because
of the inlining (in percent)
ipcp-unit-growth How much can given compilation unit grow because
of the interprocedural constant propagation (in
percent)
early-inlining-insns Maximal estimated growth of function body caused
by early inlining of single call
large-stack-frame The size of stack frame to be considered large
large-stack-frame-growth Maximal stack frame growth due to inlining (in
percent)
max-gcse-memory The maximum amount of memory to be allocated by
GCSE
max-gcse-insertion-ratio The maximum ratio of insertions to deletions of
expressions in GCSE
gcse-after-reload-partial-fraction The threshold ratio for performing partial
redundancy elimination after reload
gcse-after-reload-critical-fraction The threshold ratio of critical edges
execution count that permit performing redundancy
elimination after reload
gcse-cost-distance-ratio Scaling factor in calculation of maximum distance
an expression can be moved by GCSE optimizations
gcse-unrestricted-cost Cost at which GCSE optimizations will not
constraint the distance an expression can travel
max-hoist-depth Maximum depth of search in the dominator tree for
expressions to hoist
max-unrolled-insns The maximum number of instructions to consider to
unroll in a loop
max-average-unrolled-insns The maximum number of instructions to consider to
unroll in a loop on average
max-unroll-times The maximum number of unrollings of a single loop
max-peeled-insns The maximum number of insns of a peeled loop
max-peel-times The maximum number of peelings of a single loop
max-peel-branches The maximum number of branches on the path
through the peeled sequence
max-completely-peeled-insns The maximum number of insns of a completely
peeled loop
max-completely-peel-times The maximum number of peelings of a single loop
that is peeled completely
max-once-peeled-insns The maximum number of insns of a peeled loop that
rolls only once
max-completely-peel-loop-nest-depth The maximum depth of a loop nest we
completely peel
max-unswitch-insns The maximum number of insns of an unswitched loop
max-unswitch-level The maximum number of unswitchings in a single
loop
max-iterations-to-track Bound on the number of iterations the brute force
# of iterations analysis algorithm evaluates
max-iterations-computation-cost Bound on the cost of an expression to compute
the number of iterations
sms-max-ii-factor A factor for tuning the upper bound that swing
modulo scheduler uses for scheduling a loop
sms-min-sc The minimum value of stage count that swing
modulo scheduler will generate.
sms-dfa-history The number of cycles the swing modulo scheduler
considers when checking conflicts using DFA
sms-loop-average-count-threshold A threshold on the average loop count
considered by the swing modulo scheduler
hot-bb-count-ws-permille A basic block profile count is considered hot if
it contributes to the given permillage of the
entire profiled execution
hot-bb-frequency-fraction Select fraction of the maximal frequency of
executions of basic block in function given basic
block needs to have to be considered hot
unlikely-bb-count-fraction The minimum fraction of profile runs a given
basic block execution count must be not to be
considered unlikely
align-threshold Select fraction of the maximal frequency of
executions of basic block in function given basic
block get alignment
align-loop-iterations Loops iterating at least selected number of
iterations will get loop alignement.
max-predicted-iterations The maximum number of loop iterations we predict
statically
builtin-expect-probability Set the estimated probability in percentage for
builtin expect. The default value is 90%
probability.
tracer-dynamic-coverage-feedback The percentage of function, weighted by
execution frequency, that must be covered by
trace formation. Used when profile feedback is
available
tracer-dynamic-coverage The percentage of function, weighted by execution
frequency, that must be covered by trace
formation. Used when profile feedback is not
available
tracer-max-code-growth Maximal code growth caused by tail duplication
(in percent)
tracer-min-branch-ratio Stop reverse growth if the reverse probability of
best edge is less than this threshold (in percent)
tracer-min-branch-probability-feedback Stop forward growth if the probability
of best edge is less than this threshold (in
percent). Used when profile feedback is available
tracer-min-branch-probability Stop forward growth if the probability of best
edge is less than this threshold (in percent).
Used when profile feedback is not available
max-crossjump-edges The maximum number of incoming edges to consider
for crossjumping
min-crossjump-insns The minimum number of matching instructions to
consider for crossjumping
max-grow-copy-bb-insns The maximum expansion factor when copying basic
blocks
max-goto-duplication-insns The maximum number of insns to duplicate when
unfactoring computed gotos
max-cse-path-length The maximum length of path considered in cse
max-cse-insns The maximum instructions CSE process before
flushing
lim-expensive The minimum cost of an expensive expression in
the loop invariant motion
iv-consider-all-candidates-bound Bound on number of candidates below that all
candidates are considered in iv optimizations
iv-max-considered-uses Bound on number of iv uses in loop optimized in
iv optimizations
iv-always-prune-cand-set-bound If number of candidates in the set is smaller,
we always try to remove unused ivs during its
optimization
scev-max-expr-size Bound on size of expressions used in the scalar
evolutions analyzer
scev-max-expr-complexity Bound on the complexity of the expressions in the
scalar evolutions analyzer
omega-max-vars Bound on the number of variables in Omega
constraint systems
omega-max-geqs Bound on the number of inequalities in Omega
constraint systems
omega-max-eqs Bound on the number of equalities in Omega
constraint systems
omega-max-wild-cards Bound on the number of wild cards in Omega
constraint systems
omega-hash-table-size Bound on the size of the hash table in Omega
constraint systems
omega-max-keys Bound on the number of keys in Omega constraint
systems
omega-eliminate-redundant-constraints When set to 1, use expensive methods to
eliminate all redundant constraints
vect-max-version-for-alignment-checks Bound on number of runtime checks
inserted by the vectorizer's loop versioning for
alignment check
vect-max-version-for-alias-checks Bound on number of runtime checks inserted
by the vectorizer's loop versioning for alias
check
vect-max-peeling-for-alignment Max number of loop peels to enhancement
alignment of data references in a loop
max-cselib-memory-locations The maximum memory locations recorded by cselib
ggc-min-expand Minimum heap expansion to trigger garbage
collection, as a percentage of the total size of
the heap
ggc-min-heapsize Minimum heap size before we start collecting
garbage, in kilobytes
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MinGW v5.1.0 32-bit Options - Group 9
max-reload-search-insns The maximum number of instructions to search
backward when looking for equivalent reload
sink-frequency-threshold Target block's relative execution frequency (as a
percentage) required to sink a statement
max-sched-region-blocks The maximum number of blocks in a region to be
considered for interblock scheduling
max-sched-region-insns The maximum number of insns in a region to be
considered for interblock scheduling
max-pipeline-region-blocks The maximum number of blocks in a region to be
considered for interblock scheduling
max-pipeline-region-insns The maximum number of insns in a region to be
considered for interblock scheduling
min-spec-prob The minimum probability of reaching a source
block for interblock speculative scheduling
max-sched-extend-regions-iters The maximum number of iterations through CFG
to extend regions
max-sched-insn-conflict-delay The maximum conflict delay for an insn to be
considered for speculative motion
sched-spec-prob-cutoff The minimal probability of speculation success
(in percents), so that speculative insn will be
scheduled.
sched-state-edge-prob-cutoff The minimum probability an edge must have for
the scheduler to save its state across it.
selsched-max-lookahead The maximum size of the lookahead window of
selective scheduling
selsched-max-sched-times Maximum number of times that an insn could be
scheduled
selsched-insns-to-rename Maximum number of instructions in the ready list
that are considered eligible for renaming
sched-mem-true-dep-cost Minimal distance between possibly conflicting
store and load
sched-autopref-queue-depth Hardware autoprefetcher scheduler model control
flag. Number of lookahead cycles the model looks
into; at '0' only enable instruction sorting
heuristic. Disabled by default.
max-last-value-rtl The maximum number of RTL nodes that can be
recorded as combiner's last value
max-combine-insns The maximum number of insns combine tries to
combine
integer-share-limit The upper bound for sharing integer constants
ssp-buffer-size The lower bound for a buffer to be considered for
stack smashing protection
min-size-for-stack-sharing The minimum size of variables taking part in
stack slot sharing when not optimizing
max-jump-thread-duplication-stmts Maximum number of statements allowed in a
block that needs to be duplicated when threading
jumps
max-fields-for-field-sensitive Maximum number of fields in a structure before
pointer analysis treats the structure as a single
variable
max-sched-ready-insns The maximum number of instructions ready to be
issued to be considered by the scheduler during
the first scheduling pass
max-dse-active-local-stores Maximum number of active local stores in RTL dead
store elimination
prefetch-latency The number of insns executed before prefetch is
completed
simultaneous-prefetches The number of prefetches that can run at the same
time
l1-cache-size The size of L1 cache
l1-cache-line-size The size of L1 cache line
l2-cache-size The size of L2 cache
use-canonical-types Whether to use canonical types
max-partial-antic-length Maximum length of partial antic set when
performing tree pre optimization
sccvn-max-scc-size Maximum size of a SCC before SCCVN stops
processing a function
sccvn-max-alias-queries-per-access Maximum number of disambiguations to
perform per memory access
ira-max-loops-num Max loops number for regional RA
ira-max-conflict-table-size Max size of conflict table in MB
ira-loop-reserved-regs The number of registers in each class kept unused
by loop invariant motion
lra-max-considered-reload-pseudos The max number of reload pseudos which are
considered during spilling a non-reload pseudo
lra-inheritance-ebb-probability-cutoff Minimal fall-through edge probability
in percentage used to add BB to inheritance EBB
in LRA
switch-conversion-max-branch-ratio The maximum ratio between array size and
switch branches for a switch conversion to take
place
loop-block-tile-size size of tiles for loop blocking
loop-unroll-jam-size size of unrolling factor for unroll-and-jam
loop-unroll-jam-depth depth of unrolled loop for unroll-and-jam
graphite-max-nb-scop-params maximum number of parameters in a SCoP
graphite-max-bbs-per-function maximum number of basic blocks per function to
be analyzed by Graphite
loop-max-datarefs-for-datadeps Maximum number of datarefs in loop for
building loop data dependencies
loop-invariant-max-bbs-in-loop Max basic blocks number in loop for loop
invariant motion
profile-func-internal-id use internal function id in profile lookup
indir-call-topn-profile track topn target addresses in indirect-call
profile
slp-max-insns-in-bb Maximum number of instructions in basic block to
be considered for SLP vectorization
min-insn-to-prefetch-ratio Min. ratio of insns to prefetches to enable
prefetching for a loop with an unknown trip count
prefetch-min-insn-to-mem-ratio Min. ratio of insns to mem ops to enable
prefetching in a loop
max-vartrack-size Max. size of var tracking hash tables
max-vartrack-expr-depth Max. recursion depth for expanding var tracking
expressions
max-vartrack-reverse-op-size Max. size of loc list for which reverse ops
should be added
min-nondebug-insn-uid The minimum UID to be used for a nondebug insn
ipa-sra-ptr-growth-factor Maximum allowed growth of size of new parameters
ipa-sra replaces a pointer to an aggregate with
tm-max-aggregate-size Size in bytes after which thread-local aggregates
should be instrumented with the logging functions
instead of save/restore pairs
sra-max-scalarization-size-Ospeed Maximum size, in storage units, of an
aggregate which should be considered for
scalarization when compiling for speed
sra-max-scalarization-size-Osize Maximum size, in storage units, of an
aggregate which should be considered for
scalarization when compiling for size
ipa-cp-value-list-size Maximum size of a list of values associated with
each parameter for interprocedural constant
propagation
ipa-cp-eval-threshold Threshold ipa-cp opportunity evaluation that is
still considered beneficial to clone.
ipa-cp-recursion-penalty Percentage penalty the recursive functions will
receive when they are evaluated for cloning.
ipa-cp-single-call-penalty Percentage penalty functions containg a single
call to another function will receive when they
are evaluated for cloning.
ipa-max-agg-items Maximum number of aggregate content items for a
parameter in jump functions and lattices
ipa-cp-loop-hint-bonus Compile-time bonus IPA-CP assigns to candidates
which make loop bounds or strides known.
ipa-cp-array-index-hint-bonus Compile-time bonus IPA-CP assigns to candidates
which make an array index known.
ipa-max-aa-steps Maximum number of statements that will be visited
by IPA formal parameter analysis based on alias
analysis in any given function
lto-partitions Number of partitions the program should be split
to
lto-min-partition Minimal size of a partition for LTO (in estimated
instructions)
cxx-max-namespaces-for-diagnostic-help Maximum number of namespaces to search
for alternatives when name lookup fails
max-stores-to-sink Maximum number of conditional store pairs that
can be sunk
case-values-threshold The smallest number of different values for which
it is best to use a jump-table instead of a tree
of conditional branches, if 0, use the default
for the machine
allow-store-data-races Allow new data races on stores to be introduced
tree-reassoc-width Set the maximum number of instructions executed
in parallel in reassociated tree. If 0, use the
target dependent heuristic.
max-tail-merge-comparisons Maximum amount of similar bbs to compare a bb with
max-tail-merge-iterations Maximum amount of iterations of the pass over a
function
max-tracked-strlens Maximum number of strings for which strlen
optimization pass will track string lengths
sched-pressure-algorithm Which -fsched-pressure algorithm to apply
max-slsr-cand-scan Maximum length of candidate scans for straight-
line strength reduction
asan-stack Enable asan stack protection
asan-globals Enable asan globals protection
asan-instrument-writes Enable asan store operations protection
asan-instrument-reads Enable asan load operations protection
asan-memintrin Enable asan builtin functions protection
asan-use-after-return Enable asan detection of use-after-return bugs
asan-instrumentation-with-call-threshold Use callbacks instead of inline code
if number of accesses in function becomes greater
or equal to this number
uninit-control-dep-attempts Maximum number of nested calls to search for
control dependencies during uninitialized
variable analysis
chkp-max-ctor-size Maximum number of statements to be included into
a single static constructor generated by Pointer
Bounds Checker
max-fsm-thread-path-insns Maximum number of instructions to copy when
duplicating blocks on a finite state automaton
jump thread path
max-fsm-thread-length Maximum number of basic blocks on a finite state
automaton jump thread path
max-fsm-thread-paths Maximum number of new jump thread paths to create
for a finite state automaton
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MinGW v5.1.0 32-bit Options - Group 10
The following options control compiler warning messages:
--extra-warnings This switch lacks documentation
-W This switch is deprecated; use -Wextra instead
-Waggregate-return Warn about returning structures, unions or arrays
-Waggressive-loop-optimizations Warn if a loop with constant number of
iterations triggers undefined behavior
-Warray-bounds Warn if an array is accessed out of bounds
-Warray-bounds= Warn if an array is accessed out of bounds
-Wattributes Warn about inappropriate attribute usage
-Wcast-align Warn about pointer casts which increase alignment
-Wcoverage-mismatch Warn in case profiles in -fprofile-use do not
match
-Wdeprecated-declarations Warn about uses of __attribute__((deprecated))
declarations
-Wdisabled-optimization Warn when an optimization pass is disabled
-Wfree-nonheap-object Warn when attempting to free a non-heap object
-Winline Warn when an inlined function cannot be inlined
-Winvalid-memory-model Warn when an atomic memory model parameter is
known to be outside the valid range.
-Wlarger-than- This switch lacks documentation
-Wlarger-than= Warn if an object is larger than bytes
-Wodr Warn about some C++ One Definition Rule
violations during link time optimization
-Woverflow Warn about overflow in arithmetic expressions
-Wpacked Warn when the packed attribute has no effect on
struct layout
-Wpadded Warn when padding is required to align structure
members
-Wreturn-local-addr Warn about returning a pointer/reference to a
local or temporary variable.
-Wshadow Warn when one local variable shadows another
-Wstack-protector Warn when not issuing stack smashing protection
for some reason
-Wstack-usage= Warn if stack usage might be larger than
specified amount
-Wstrict-aliasing Warn about code which might break strict aliasing
rules
-Wstrict-overflow Warn about optimizations that assume that signed
overflow is undefined
-Wsuggest-attribute=const Warn about functions which might be candidates
for __attribute__((const))
-Wsuggest-attribute=noreturn Warn about functions which might be candidates
for __attribute__((noreturn))
-Wsuggest-attribute=pure Warn about functions which might be candidates
for __attribute__((pure))
-Wsuggest-final-methods Warn about C++ virtual methods where adding final
keyword would improve code quality
-Wsuggest-final-types Warn about C++ polymorphic types where adding
final keyword would improve code quality
-Wtrampolines Warn whenever a trampoline is generated
-Wtype-limits Warn if a comparison is always true or always
false due to the limited range of the data type
-Wunsafe-loop-optimizations Warn if the loop cannot be optimized due to
nontrivial assumptions.
-Wunused-but-set-parameter Warn when a function parameter is only set,
otherwise unused
-Wunused-but-set-variable Warn when a variable is only set, otherwise unused
-Wunused-function Warn when a function is unused
-Wunused-parameter Warn when a function parameter is unused
-Wunused-value Warn when an expression value is unused
-Wunused-variable Warn when a variable is unused
-Wvector-operation-performance Warn when a vector operation is compiled
outside the SIMD
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MinGW v5.1.0 32-bit Options - Group 11
The following options control optimizations:
-O Set optimization level to
-Ofast Optimize for speed disregarding exact standards
compliance
-Og Optimize for debugging experience rather than
speed or size
-Os Optimize for space rather than speed
-faggressive-loop-optimizations Aggressively optimize loops using language
constraints
-falign-functions Align the start of functions
-falign-jumps Align labels which are only reached by jumping
-falign-labels Align all labels
-falign-loops Align the start of loops
-fassociative-math Allow optimization for floating-point arithmetic
which may change the result of the operation due
to rounding.
-fasynchronous-unwind-tables Generate unwind tables that are exact at each
instruction boundary
-fauto-inc-dec Generate auto-inc/dec instructions
-fbranch-count-reg Replace add, compare, branch with branch on count
register
-fbranch-probabilities Use profiling information for branch probabilities
-fbranch-target-load-optimize Perform branch target load optimization before
prologue / epilogue threading
-fbranch-target-load-optimize2 Perform branch target load optimization after
prologue / epilogue threading
-fbtr-bb-exclusive Restrict target load migration not to re-use
registers in any basic block
-fcaller-saves Save registers around function calls
-fcombine-stack-adjustments Looks for opportunities to reduce stack
adjustments and stack references.
-fcompare-elim Perform comparison elimination after register
allocation has finished
-fconserve-stack Do not perform optimizations increasing
noticeably stack usage
-fcprop-registers Perform a register copy-propagation optimization
pass
-fcrossjumping Perform cross-jumping optimization
-fcse-follow-jumps When running CSE, follow jumps to their targets
-fcx-fortran-rules Complex multiplication and division follow
Fortran rules
-fcx-limited-range Omit range reduction step when performing complex
division
-fdce Use the RTL dead code elimination pass
-fdefer-pop Defer popping functions args from stack until
later
-fdelayed-branch Attempt to fill delay slots of branch instructions
-fdelete-dead-exceptions Delete dead instructions that may throw exceptions
-fdelete-null-pointer-checks Delete useless null pointer checks
-fdevirtualize Try to convert virtual calls to direct ones.
-fdevirtualize-speculatively Perform speculative devirtualization
-fdse Use the RTL dead store elimination pass
-fearly-inlining Perform early inlining
-fexceptions Enable exception handling
-fexpensive-optimizations Perform a number of minor, expensive optimizations
-ffinite-math-only Assume no NaNs or infinities are generated
-ffloat-store Don't allocate floats and doubles in extended-
precision registers
-fforward-propagate Perform a forward propagation pass on RTL
-ffp-contract= -ffp-contract=[off|on|fast] Perform floating-
point expression contraction.
-ffunction-cse Allow function addresses to be held in registers
-fgcse Perform global common subexpression elimination
-fgcse-after-reload Perform global common subexpression elimination
after register allocation has finished
-fgcse-las Perform redundant load after store elimination in
global common subexpression elimination
-fgcse-lm Perform enhanced load motion during global common
subexpression elimination
-fgcse-sm Perform store motion after global common
subexpression elimination
-fgraphite Enable in and out of Graphite representation
-fgraphite-identity Enable Graphite Identity transformation
-fguess-branch-probability Enable guessing of branch probabilities
-fhoist-adjacent-loads Enable hoisting adjacent loads to encourage
generating conditional move instructions
-fif-conversion Perform conversion of conditional jumps to
branchless equivalents
-fif-conversion2 Perform conversion of conditional jumps to
conditional execution
-findirect-inlining Perform indirect inlining
-finline Enable inlining of function declared "inline",
disabling disables all inlining
-finline-atomics Inline __atomic operations when a lock free
instruction sequence is available.
-finline-functions-called-once Integrate functions only required by their
single caller
-finline-small-functions Integrate functions into their callers when code
size is known not to grow
-fipa-cp Perform interprocedural constant propagation
-fipa-cp-alignment Perform alignment discovery and propagation to
make Interprocedural constant propagation stronger
-fipa-cp-clone Perform cloning to make Interprocedural constant
propagation stronger
-fipa-icf Perform Identical Code Folding for functions and
read-only variables
-fipa-icf-functions Perform Identical Code Folding for functions
-fipa-profile Perform interprocedural profile propagation
-fipa-pta Perform interprocedural points-to analysis
-fipa-pure-const Discover pure and const functions
-fipa-ra Use caller save register across calls if possible
-fipa-reference Discover readonly and non addressable static
variables
-fipa-sra Perform interprocedural reduction of aggregates
-fira-algorithm= -fira-algorithm=[CB|priority] Set the used IRA
algorithm
-fira-hoist-pressure Use IRA based register pressure calculation in
RTL hoist optimizations.
-fira-loop-pressure Use IRA based register pressure calculation in
RTL loop optimizations.
-fira-region= -fira-region=[one|all|mixed] Set regions for IRA
-fira-share-save-slots Share slots for saving different hard registers.
-fira-share-spill-slots Share stack slots for spilled pseudo-registers.
-fisolate-erroneous-paths-attribute Detect paths that trigger erroneous or
undefined behavior due a null value being used in
a way forbidden by a returns_nonnull or nonnull
attribute. Isolate those paths from the main
control flow and turn the statement with
erroneous or undefined behavior into a trap.
-fisolate-erroneous-paths-dereference Detect paths that trigger erroneous or
undefined behavior due to dereferencing a null
pointer. Isolate those paths from the main
control flow and turn the statement with
erroneous or undefined behavior into a trap.
-fivopts Optimize induction variables on trees
-fjump-tables Use jump tables for sufficiently large switch
statements
-flifetime-dse Tell DSE that the storage for a C++ object is
dead when the constructor starts and when the
destructor finishes.
-flive-range-shrinkage Relief of register pressure through live range
shrinkage
-floop-block Enable Loop Blocking transformation
-floop-interchange Enable Loop Interchange transformation
-floop-nest-optimize Enable the ISL based loop nest optimizer
-floop-parallelize-all Mark all loops as parallel
-floop-strip-mine Enable Loop Strip Mining transformation
-floop-unroll-and-jam Enable Loop Unroll Jam transformation
-flra-remat Do CFG-sensitive rematerialization in LRA
-fmath-errno Set errno after built-in math functions
-fmodulo-sched Perform SMS based modulo scheduling before the
first scheduling pass
-fmodulo-sched-allow-regmoves Perform SMS based modulo scheduling with
register moves allowed
-fmove-loop-invariants Move loop invariant computations out of loops
-fnon-call-exceptions Support synchronous non-call exceptions
-fomit-frame-pointer When possible do not generate stack frames
-fopt-info Enable all optimization info dumps on stderr
-foptimize-sibling-calls Optimize sibling and tail recursive calls
-foptimize-strlen Enable string length optimizations on trees
-fpack-struct Pack structure members together without holes
-fpack-struct= Set initial maximum structure member alignment
-fpartial-inlining Perform partial inlining
-fpeel-loops Perform loop peeling
-fpeephole Enable machine specific peephole optimizations
-fpeephole2 Enable an RTL peephole pass before sched2
-fpredictive-commoning Run predictive commoning optimization.
-fprefetch-loop-arrays Generate prefetch instructions, if available, for
arrays in loops
-freciprocal-math Same as -fassociative-math for expressions which
include division.
-freg-struct-return Return small aggregates in registers
-frename-registers Perform a register renaming optimization pass
-freorder-blocks Reorder basic blocks to improve code placement
-freorder-blocks-and-partition Reorder basic blocks and partition into hot
and cold sections
-freorder-functions Reorder functions to improve code placement
-frerun-cse-after-loop Add a common subexpression elimination pass after
loop optimizations
-freschedule-modulo-scheduled-loops Enable/Disable the traditional scheduling
in loops that already passed modulo scheduling
-frounding-math Disable optimizations that assume default FP
rounding behavior
-fsched-critical-path-heuristic Enable the critical path heuristic in the
scheduler
-fsched-dep-count-heuristic Enable the dependent count heuristic in the
scheduler
-fsched-group-heuristic Enable the group heuristic in the scheduler
-fsched-interblock Enable scheduling across basic blocks
-fsched-last-insn-heuristic Enable the last instruction heuristic in the
scheduler
-fsched-pressure Enable register pressure sensitive insn scheduling
-fsched-rank-heuristic Enable the rank heuristic in the scheduler
-fsched-spec Allow speculative motion of non-loads
-fsched-spec-insn-heuristic Enable the speculative instruction heuristic in
the scheduler
-fsched-spec-load Allow speculative motion of some loads
-fsched-spec-load-dangerous Allow speculative motion of more loads
-fsched-stalled-insns Allow premature scheduling of queued insns
-fsched-stalled-insns-dep Set dependence distance checking in premature
scheduling of queued insns
-fsched-stalled-insns-dep= Set dependence distance checking in
premature scheduling of queued insns
-fsched-stalled-insns= Set number of queued insns that can be
prematurely scheduled
-fsched2-use-superblocks If scheduling post reload, do superblock
scheduling
-fschedule-fusion Perform a target dependent instruction fusion
optimization pass
-fschedule-insns Reschedule instructions before register allocation
-fschedule-insns2 Reschedule instructions after register allocation
-fsection-anchors Access data in the same section from shared
anchor points
-fsel-sched-pipelining Perform software pipelining of inner loops during
selective scheduling
-fsel-sched-pipelining-outer-loops Perform software pipelining of outer loops
during selective scheduling
-fsel-sched-reschedule-pipelined Reschedule pipelined regions without
pipelining
-fselective-scheduling Schedule instructions using selective scheduling
algorithm
-fselective-scheduling2 Run selective scheduling after reload
-fset-stack-executable For nested functions on stack executable
permission is set.
-fshrink-wrap Emit function prologues only before parts of the
function that need it, rather than at the top of
the function.
-fsignaling-nans Disable optimizations observable by IEEE
signaling NaNs
-fsigned-zeros Disable floating point optimizations that ignore
the IEEE signedness of zero
-fsimd-cost-model= Specifies the vectorization cost model for code
marked with a simd directive
-fsingle-precision-constant Convert floating point constants to single
precision constants
-fsplit-ivs-in-unroller Split lifetimes of induction variables when loops
are unrolled
-fsplit-wide-types Split wide types into independent registers
-fssa-phiopt Optimize conditional patterns using SSA PHI nodes
-fstack-reuse= -fstack-reuse=[all|named_vars|none] Set stack
reuse level for local variables.
-fstdarg-opt Optimize amount of stdarg registers saved to
stack at start of function
-fstrict-aliasing Assume strict aliasing rules apply
-fstrict-overflow Treat signed overflow as undefined
-fstrict-volatile-bitfields Force bitfield accesses to match their type width
-fthread-jumps Perform jump threading optimizations
-ftracer Perform superblock formation via tail duplication
-ftrapping-math Assume floating-point operations can trap
-ftrapv Trap for signed overflow in addition, subtraction
and multiplication
-ftree-bit-ccp Enable SSA-BIT-CCP optimization on trees
-ftree-builtin-call-dce Enable conditional dead code elimination for
builtin calls
-ftree-ccp Enable SSA-CCP optimization on trees
-ftree-ch Enable loop header copying on trees
-ftree-coalesce-inlined-vars Enable coalescing of copy-related user variables
that are inlined
-ftree-coalesce-vars Enable coalescing of all copy-related user
variables
-ftree-copy-prop Enable copy propagation on trees
-ftree-copyrename Replace SSA temporaries with better names in
copies
-ftree-cselim Transform condition stores into unconditional ones
-ftree-dce Enable SSA dead code elimination optimization on
trees
-ftree-dominator-opts Enable dominator optimizations
-ftree-dse Enable dead store elimination
-ftree-forwprop Enable forward propagation on trees
-ftree-fre Enable Full Redundancy Elimination (FRE) on trees
-ftree-loop-distribute-patterns Enable loop distribution for patterns
transformed into a library call
-ftree-loop-distribution Enable loop distribution on trees
-ftree-loop-if-convert Convert conditional jumps in innermost loops to
branchless equivalents
-ftree-loop-if-convert-stores Also if-convert conditional jumps containing
memory writes
-ftree-loop-im Enable loop invariant motion on trees
-ftree-loop-ivcanon Create canonical induction variables in loops
-ftree-loop-optimize Enable loop optimizations on tree level
-ftree-loop-vectorize Enable loop vectorization on trees
-ftree-lrs Perform live range splitting during the SSA-
>normal pass
-ftree-parallelize-loops= Enable automatic parallelization of loops
-ftree-partial-pre In SSA-PRE optimization on trees, enable partial-
partial redundancy elimination
-ftree-phiprop Enable hoisting loads from conditional pointers.
-ftree-pre Enable SSA-PRE optimization on trees
-ftree-pta Perform function-local points-to analysis on
trees.
-ftree-reassoc Enable reassociation on tree level
-ftree-scev-cprop Enable copy propagation of scalar-evolution
information.
-ftree-sink Enable SSA code sinking on trees
-ftree-slp-vectorize Enable basic block vectorization (SLP) on trees
-ftree-slsr Perform straight-line strength reduction
-ftree-sra Perform scalar replacement of aggregates
-ftree-switch-conversion Perform conversions of switch initializations.
-ftree-tail-merge Enable tail merging on trees
-ftree-ter Replace temporary expressions in the SSA->normal
pass
-ftree-vectorize Enable vectorization on trees
-ftree-vrp Perform Value Range Propagation on trees
-funroll-all-loops Perform loop unrolling for all loops
-funroll-loops Perform loop unrolling when iteration count is
known
-funsafe-loop-optimizations Allow loop optimizations to assume that the loops
behave in normal way
-funsafe-math-optimizations Allow math optimizations that may violate IEEE or
ISO standards
-funswitch-loops Perform loop unswitching
-funwind-tables Just generate unwind tables for exception handling
-fvar-tracking Perform variable tracking
-fvar-tracking-assignments Perform variable tracking by annotating
assignments
-fvar-tracking-assignments-toggle Toggle -fvar-tracking-assignments
-fvar-tracking-uninit Perform variable tracking and also tag variables
that are uninitialized
-fvariable-expansion-in-unroller Apply variable expansion when loops are
unrolled
-fvect-cost-model= Specifies the cost model for vectorization
-fvpt Use expression value profiles in optimizations
-fweb Construct webs and split unrelated uses of single
variable
-fwrapv Assume signed arithmetic overflow wraps around
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MinGW v5.1.0 32-bit Options - Group 12
The following options are target specific:
-m128bit-long-double sizeof(long double) is 16
-m16 Generate 16bit i386 code
-m32 Generate 32bit i386 code
-m3dnow Support 3DNow! built-in functions
-m3dnowa Support Athlon 3Dnow! built-in functions
-m64 Generate 64bit x86-64 code
-m80387 Use hardware fp
-m8bit-idiv Expand 32bit/64bit integer divide into 8bit
unsigned integer divide with run-time check
-m96bit-long-double sizeof(long double) is 12
-mabi= Generate code that conforms to the given ABI
-mabm Support code generation of Advanced Bit
Manipulation (ABM) instructions.
-maccumulate-outgoing-args Reserve space for outgoing arguments in the
function prologue
-maddress-mode= Use given address mode
-madx Support flag-preserving add-carry instructions
-maes Support AES built-in functions and code generation
-malign-data= Use the given data alignment
-malign-double Align some doubles on dword boundary
-malign-functions= Function starts are aligned to this power of 2
-malign-jumps= Jump targets are aligned to this power of 2
-malign-loops= Loop code aligned to this power of 2
-malign-stringops Align destination of the string operations
-march= Generate code for given CPU
-masm= Use given assembler dialect
-mavx Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1,
SSE4.2 and AVX built-in functions and code
generation
-mavx2 Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1,
SSE4.2, AVX and AVX2 built-in functions and code
generation
-mavx256-split-unaligned-load Split 32-byte AVX unaligned load
-mavx256-split-unaligned-store Split 32-byte AVX unaligned store
-mavx512bw Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1,
SSE4.2, AVX, AVX2 and AVX512F and AVX512BW built-
in functions and code generation
-mavx512cd Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1,
SSE4.2, AVX, AVX2 and AVX512F and AVX512CD built-
in functions and code generation
-mavx512dq Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1,
SSE4.2, AVX, AVX2 and AVX512F and AVX512DQ built-
in functions and code generation
-mavx512er Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1,
SSE4.2, AVX, AVX2 and AVX512F and AVX512ER built-
in functions and code generation
-mavx512f Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1,
SSE4.2, AVX, AVX2 and AVX512F built-in functions
and code generation
-mavx512ifma Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1,
SSE4.2, AVX, AVX2 and AVX512F and AVX512IFMA
built-in functions and code generation
-mavx512pf Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1,
SSE4.2, AVX, AVX2 and AVX512F and AVX512PF built-
in functions and code generation
-mavx512vbmi Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1,
SSE4.2, AVX, AVX2 and AVX512F and AVX512VBMI
built-in functions and code generation
-mavx512vl Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1,
SSE4.2, AVX, AVX2 and AVX512F and AVX512VL built-
in functions and code generation
-mbmi Support BMI built-in functions and code generation
-mbmi2 Support BMI2 built-in functions and code
generation
-mbranch-cost= Branches are this expensive (1-5, arbitrary units)
-mcld Generate cld instruction in the function prologue.
-mclflushopt Support CLFLUSHOPT instructions
-mclwb Support CLWB instruction
-mcmodel= Use given x86-64 code model
-mconsole Create console application
-mcpu= This switch lacks documentation
-mcrc32 Support code generation of crc32 instruction.
-mcx16 Support code generation of cmpxchg16b instruction.
-mdispatch-scheduler Do dispatch scheduling if processor is bdver1 or
bdver2 or bdver3 or bdver4 and Haifa scheduling
is selected.
-mdll Generate code for a DLL
-mdump-tune-features This switch lacks documentation
-mf16c Support F16C built-in functions and code
generation
-mfancy-math-387 Generate sin, cos, sqrt for FPU
-mfentry Emit profiling counter call at function entry
before prologue.
-mfma Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1,
SSE4.2, AVX and FMA built-in functions and code
generation
-mfma4 Support FMA4 built-in functions and code
generation
-mforce-drap Always use Dynamic Realigned Argument Pointer
(DRAP) to realign stack
-mfp-ret-in-387 Return values of functions in FPU registers
-mfpmath= Generate floating point mathematics using given
instruction set
-mfsgsbase Support FSGSBASE built-in functions and code
generation
-mfused-madd This switch lacks documentation
-mfxsr Support FXSAVE and FXRSTOR instructions
-mhard-float Use hardware fp
-mhle Support Hardware Lock Elision prefixes
-mieee-fp Use IEEE math for fp comparisons
-mincoming-stack-boundary= Assume incoming stack aligned to this power of 2
-minline-all-stringops Inline all known string operations
-minline-stringops-dynamically Inline memset/memcpy string operations, but
perform inline version only for small blocks
-mintel-syntax This switch lacks documentation
-mlarge-data-threshold= Data greater than given threshold will go into
.ldata section in x86-64 medium model
-mlong-double-128 Use 128-bit long double
-mlong-double-64 Use 64-bit long double
-mlong-double-80 Use 80-bit long double
-mlwp Support LWP built-in functions and code
generation
-mlzcnt Support LZCNT built-in function and code
generation
-mmemcpy-strategy= Specify memcpy expansion strategy when expected
size is known
-mmemset-strategy= Specify memset expansion strategy when expected
size is known
-mmmx Support MMX built-in functions
-mmovbe Support code generation of movbe instruction.
-mmpx Support MPX code generation
-mms-bitfields Use native (MS) bitfield layout
-mno-align-stringops This switch lacks documentation
-mno-default Clear all tune features
-mno-fancy-math-387 This switch lacks documentation
-mno-push-args This switch lacks documentation
-mno-red-zone This switch lacks documentation
-mno-sse4 Do not support SSE4.1 and SSE4.2 built-in
functions and code generation
-mnop-fun-dllimport Ignore dllimport for functions
-mnop-mcount Generate mcount/__fentry__ calls as nops. To
activate they need to be patched in.
-momit-leaf-frame-pointer Omit the frame pointer in leaf functions
-mpc32 Set 80387 floating-point precision to 32-bit
-mpc64 Set 80387 floating-point precision to 64-bit
-mpc80 Set 80387 floating-point precision to 80-bit
-mpclmul Support PCLMUL built-in functions and code
generation
-mpcommit Support PCOMMIT instruction
-mpe-aligned-commons Use the GNU extension to the PE format for
aligned common data
-mpopcnt Support code generation of popcnt instruction.
-mprefer-avx128 Use 128-bit AVX instructions instead of 256-bit
AVX instructions in the auto-vectorizer.
-mpreferred-stack-boundary= Attempt to keep stack aligned to this power of 2
-mprefetchwt1 Support PREFETCHWT1 built-in functions and code
generation
-mprfchw Support PREFETCHW instruction
-mpush-args Use push instructions to save outgoing arguments
-mrdrnd Support RDRND built-in functions and code
generation
-mrdseed Support RDSEED instruction
-mrecip Generate reciprocals instead of divss and sqrtss.
-mrecip= Control generation of reciprocal estimates.
-mrecord-mcount Generate __mcount_loc section with all mcount or
__fentry__ calls.
-mred-zone Use red-zone in the x86-64 code
-mregparm= Number of registers used to pass integer arguments
-mrtd Alternate calling convention
-mrtm Support RTM built-in functions and code generation
-msahf Support code generation of sahf instruction in
64bit x86-64 code.
-msha Support SHA1 and SHA256 built-in functions and
code generation
-mskip-rax-setup Skip setting up RAX register when passing
variable arguments.
-msoft-float Do not use hardware fp
-msse Support MMX and SSE built-in functions and code
generation
-msse2 Support MMX, SSE and SSE2 built-in functions and
code generation
-msse2avx Encode SSE instructions with VEX prefix
-msse3 Support MMX, SSE, SSE2 and SSE3 built-in
functions and code generation
-msse4 Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1 and
SSE4.2 built-in functions and code generation
-msse4.1 Support MMX, SSE, SSE2, SSE3, SSSE3 and SSE4.1
built-in functions and code generation
-msse4.2 Support MMX, SSE, SSE2, SSE3, SSSE3, SSE4.1 and
SSE4.2 built-in functions and code generation
-msse4a Support MMX, SSE, SSE2, SSE3 and SSE4A built-in
functions and code generation
-msse5 This switch lacks documentation
-msseregparm Use SSE register passing conventions for SF and
DF mode
-mssse3 Support MMX, SSE, SSE2, SSE3 and SSSE3 built-in
functions and code generation
-mstack-arg-probe Enable stack probing
-mstack-protector-guard= Use given stack-protector guard
-mstackrealign Realign stack in prologue
-mstringop-strategy= Chose strategy to generate stringop using
-mtbm Support TBM built-in functions and code generation
-mthreads Use Mingw-specific thread support
-mtls-dialect= Use given thread-local storage dialect
-mtls-direct-seg-refs Use direct references against %gs when accessing
tls data
-mtune-ctrl= Fine grain control of tune features
-mtune= Schedule code for given CPU
-municode Use unicode startup and define UNICODE macro
-mveclibabi= Vector library ABI to use
-mvect8-ret-in-mem Return 8-byte vectors in memory
-mvzeroupper Generate vzeroupper instruction before a transfer
of control flow out of the function.
-mwin32 Set Windows defines
-mwindows Create GUI application
-mx32 Generate 32bit x86-64 code
-mxop Support XOP built-in functions and code
generation
-mxsave Support XSAVE and XRSTOR instructions
-mxsavec Support XSAVEC instructions
-mxsaveopt Support XSAVEOPT instruction
-mxsaves Support XSAVES and XRSTORS instructions
Known assembler dialects (for use with the -masm-dialect= option):
att intel
Known ABIs (for use with the -mabi= option):
ms sysv
Known code models (for use with the -mcmodel= option):
32 kernel large medium small
Valid arguments to -mfpmath=:
387 387+sse 387,sse both sse sse+387 sse,387
Known data alignment choices (for use with the -malign-data= option):
abi cacheline compat
Known vectorization library ABIs (for use with the -mveclibabi= option):
acml svml
Known address mode (for use with the -maddress-mode= option):
long short
Known stack protector guard (for use with the -mstack-protector-guard= option):
global tls
Valid arguments to -mstringop-strategy=:
byte_loop libcall loop rep_4byte rep_8byte rep_byte unrolled_loop
vector_loop
Known TLS dialects (for use with the -mtls-dialect= option):
gnu gnu2
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MinGW v5.1.0 32-bit Options - Group 13
The following options are language-independent:
--debug This switch lacks documentation
--dumpbase This switch lacks documentation
--dumpdir This switch lacks documentation
--help Display this information
--help= Display descriptions of a specific class of
options. is one or more of optimizers,
target, warnings, undocumented, params
--optimize This switch lacks documentation
--param
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MinGW v5.1.0 32-bit Options - Group 14
-g Generate debug information in default format
-gcoff Generate debug information in COFF format
-gdwarf Generate debug information in default version of
DWARF format
-gdwarf- Generate debug information in DWARF v2 (or later)
format
-ggdb Generate debug information in default extended
format
-ggnu-pubnames Generate DWARF pubnames and pubtypes sections
with GNU extensions.
-gno-pubnames Don't generate DWARF pubnames and pubtypes
sections.
-gno-record-gcc-switches Don't record gcc command line switches in DWARF
DW_AT_producer.
-gno-split-dwarf Don't generate debug information in separate .dwo
files
-gno-strict-dwarf Emit DWARF additions beyond selected version
-gpubnames Generate DWARF pubnames and pubtypes sections.
-grecord-gcc-switches Record gcc command line switches in DWARF
DW_AT_producer.
-gsplit-dwarf Generate debug information in separate .dwo files
-gstabs Generate debug information in STABS format
-gstabs+ Generate debug information in extended STABS
format
-gstrict-dwarf Don't emit DWARF additions beyond selected version
-gtoggle Toggle debug information generation
-gvms Generate debug information in VMS format
-gxcoff Generate debug information in XCOFF format
-gxcoff+ Generate debug information in extended XCOFF
format
-gz Generate compressed debug sections
-gz= Generate compressed debug sections in format
-imultiarch Set to be the multiarch include subdirectory
-iplugindir= Set to be the default plugin directory
-p Enable function profiling
-pedantic-errors Like -pedantic but issue them as errors
-quiet Do not display functions compiled or elapsed time
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MinGW v5.1.0 32-bit Options - Group 15
Usage: C:/WorkLib/MinGW/Bin/../lib/gcc/i686-w64-mingw32/5.1.0/../../../../i686-w64-mingw32/bin/as.exe [option...] [asmfile...]
Options:
-a[sub-option...] turn on listings
Sub-options [default hls]:
c omit false conditionals
d omit debugging directives
g include general info
h include high-level source
l include assembly
m include macro expansions
n omit forms processing
s include symbols
=FILE list to FILE (must be last sub-option)
--alternate initially turn on alternate macro syntax
--compress-debug-sections
compress DWARF debug sections using zlib
--nocompress-debug-sections
don't compress DWARF debug sections
-D produce assembler debugging messages
--debug-prefix-map OLD=NEW
map OLD to NEW in debug information
--defsym SYM=VAL define symbol SYM to given value
-f skip whitespace and comment preprocessing
-g --gen-debug generate debugging information
--gstabs generate STABS debugging information
--gstabs+ generate STABS debug info with GNU extensions
--gdwarf-2 generate DWARF2 debugging information
--gdwarf-sections generate per-function section names for DWARF line information
--hash-size= set the hash table size close to
--help show this message and exit
--target-help show target specific options
-I DIR add DIR to search list for .include directives
-J don't warn about signed overflow
-K warn when differences altered for long displacements
-L,--keep-locals keep local symbols (e.g. starting with `L')
-M,--mri assemble in MRI compatibility mode
--MD FILE write dependency information in FILE (default none)
-nocpp ignored
-o OBJFILE name the object-file output OBJFILE (default a.out)
-R fold data section into text section
--reduce-memory-overheads
prefer smaller memory use at the cost of longer
assembly times
--statistics print various measured statistics from execution
--strip-local-absolute strip local absolute symbols
--traditional-format Use same format as native assembler when possible
--version print assembler version number and exit
-W --no-warn suppress warnings
--warn don't suppress warnings
--fatal-warnings treat warnings as errors
-w ignored
-X ignored
-Z generate object file even after errors
--listing-lhs-width set the width in words of the output data column of
the listing
--listing-lhs-width2 set the width in words of the continuation lines
of the output data column; ignored if smaller than
the width of the first line
--listing-rhs-width set the max width in characters of the lines from
the source file
--listing-cont-lines set the maximum number of continuation lines used
for the output data column of the listing
@FILE read options from FILE
-n Do not optimize code alignment
-q quieten some warnings
--32/--64/--x32 generate 32bit/64bit/x32 code
--divide ignored
-march=CPU[,+EXTENSION...]
generate code for CPU and EXTENSION, CPU is one of:
generic32, generic64, i386, i486, i586, i686,
pentium, pentiumpro, pentiumii, pentiumiii, pentium4,
prescott, nocona, core, core2, corei7, l1om, k1om,
k6, k6_2, athlon, opteron, k8, amdfam10, bdver1,
bdver2, bdver3, bdver4, btver1, btver2
EXTENSION is combination of:
8087, 287, 387, no87, mmx, nommx, sse, sse2, sse3,
ssse3, sse4.1, sse4.2, sse4, nosse, avx, avx2,
avx512f, avx512cd, avx512er, avx512pf, avx512dq,
avx512bw, avx512vl, noavx, vmx, vmfunc, smx, xsave,
xsaveopt, xsavec, xsaves, aes, pclmul, fsgsbase,
rdrnd, f16c, bmi2, fma, fma4, xop, lwp, movbe, cx16,
ept, lzcnt, hle, rtm, invpcid, clflush, nop, syscall,
rdtscp, 3dnow, 3dnowa, padlock, svme, sse4a, abm,
bmi, tbm, adx, rdseed, prfchw, smap, mpx, sha,
clflushopt, prefetchwt1, se1, clwb, pcommit,
avx512ifma, avx512vbmi
-mtune=CPU optimize for CPU, CPU is one of:
generic32, generic64, i8086, i186, i286, i386, i486,
i586, i686, pentium, pentiumpro, pentiumii,
pentiumiii, pentium4, prescott, nocona, core, core2,
corei7, l1om, k1om, k6, k6_2, athlon, opteron, k8,
amdfam10, bdver1, bdver2, bdver3, bdver4, btver1,
btver2
-msse2avx encode SSE instructions with VEX prefix
-msse-check=[none|error|warning]
check SSE instructions
-moperand-check=[none|error|warning]
check operand combinations for validity
-mavxscalar=[128|256] encode scalar AVX instructions with specific vector
length
-mevexlig=[128|256|512] encode scalar EVEX instructions with specific vector
length
-mevexwig=[0|1] encode EVEX instructions with specific EVEX.W value
for EVEX.W bit ignored instructions
-mevexrcig=[rne|rd|ru|rz]
encode EVEX instructions with specific EVEX.RC value
for SAE-only ignored instructions
-mmnemonic=[att|intel] use AT&T/Intel mnemonic
-msyntax=[att|intel] use AT&T/Intel syntax
-mindex-reg support pseudo index registers
-mnaked-reg don't require `%' prefix for registers
-mold-gcc support old (<= 2.8.1) versions of gcc
-madd-bnd-prefix add BND prefix for all valid branches
-mbig-obj generate big object files
-momit-lock-prefix=[no|yes]
strip all lock prefixes
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MinGW v5.1.0 32-bit Options - Group 16
Report bugs to <>
Usage: collect2 [options]
Wrap linker and generate constructor code if needed.
Options:
-debug Enable debug output
--help Display this information
-v, --version Display this program's version number
Overview: http://gcc.gnu.org/onlinedocs/gccint/Collect2.html
Report bugs: <>
Usage: C:/WorkLib/MinGW/Bin/../lib/gcc/i686-w64-mingw32/5.1.0/../../../../i686-w64-mingw32/bin/ld.exe [options] file...
Options:
-a KEYWORD Shared library control for HP/UX compatibility
-A ARCH, --architecture ARCH
Set architecture
-b TARGET, --format TARGET Specify target for following input files
-c FILE, --mri-script FILE Read MRI format linker script
-d, -dc, -dp Force common symbols to be defined
-e ADDRESS, --entry ADDRESS Set start address
-E, --export-dynamic Export all dynamic symbols
--no-export-dynamic Undo the effect of --export-dynamic
-EB Link big-endian objects
-EL Link little-endian objects
-f SHLIB, --auxiliary SHLIB Auxiliary filter for shared object symbol table
-F SHLIB, --filter SHLIB Filter for shared object symbol table
-g Ignored
-G SIZE, --gpsize SIZE Small data size (if no size, same as --shared)
-h FILENAME, -soname FILENAME
Set internal name of shared library
-I PROGRAM, --dynamic-linker PROGRAM
Set PROGRAM as the dynamic linker to use
-l LIBNAME, --library LIBNAME
Search for library LIBNAME
-L DIRECTORY, --library-path DIRECTORY
Add DIRECTORY to library search path
--sysroot= Override the default sysroot location
-m EMULATION Set emulation
-M, --print-map Print map file on standard output
-n, --nmagic Do not page align data
-N, --omagic Do not page align data, do not make text readonly
--no-omagic Page align data, make text readonly
-o FILE, --output FILE Set output file name
-O Optimize output file
-plugin PLUGIN Load named plugin
-plugin-opt ARG Send arg to last-loaded plugin
-flto Ignored for GCC LTO option compatibility
-flto-partition= Ignored for GCC LTO option compatibility
-fuse-ld= Ignored for GCC linker option compatibility
-Qy Ignored for SVR4 compatibility
-q, --emit-relocs Generate relocations in final output
-r, -i, --relocatable Generate relocatable output
-R FILE, --just-symbols FILE
Just link symbols (if directory, same as --rpath)
-s, --strip-all Strip all symbols
-S, --strip-debug Strip debugging symbols
--strip-discarded Strip symbols in discarded sections
--no-strip-discarded Do not strip symbols in discarded sections
-t, --trace Trace file opens
-T FILE, --script FILE Read linker script
--default-script FILE, -dT Read default linker script
-u SYMBOL, --undefined SYMBOL
Start with undefined reference to SYMBOL
--unique [=SECTION] Don't merge input [SECTION | orphan] sections
-Ur Build global constructor/destructor tables
-v, --version Print version information
-V Print version and emulation information
-x, --discard-all Discard all local symbols
-X, --discard-locals Discard temporary local symbols (default)
--discard-none Don't discard any local symbols
-y SYMBOL, --trace-symbol SYMBOL
Trace mentions of SYMBOL
-Y PATH Default search path for Solaris compatibility
-(, --start-group Start a group
-), --end-group End a group
--accept-unknown-input-arch Accept input files whose architecture cannot be determined
--no-accept-unknown-input-arch
Reject input files whose architecture is unknown
--as-needed Only set DT_NEEDED for following dynamic libs if used
--no-as-needed Always set DT_NEEDED for dynamic libraries mentioned on
the command line
-assert KEYWORD Ignored for SunOS compatibility
-Bdynamic, -dy, -call_shared
Link against shared libraries
-Bstatic, -dn, -non_shared, -static
Do not link against shared libraries
-Bsymbolic Bind global references locally
-Bsymbolic-functions Bind global function references locally
--check-sections Check section addresses for overlaps (default)
--no-check-sections Do not check section addresses for overlaps
--copy-dt-needed-entries Copy DT_NEEDED links mentioned inside DSOs that follow
--no-copy-dt-needed-entries Do not copy DT_NEEDED links mentioned inside DSOs that follow
--cref Output cross reference table
--defsym SYMBOL=EXPRESSION Define a symbol
--demangle [=STYLE] Demangle symbol names [using STYLE]
--embedded-relocs Generate embedded relocs
--fatal-warnings Treat warnings as errors
--no-fatal-warnings Do not treat warnings as errors (default)
-fini SYMBOL Call SYMBOL at unload-time
--force-exe-suffix Force generation of file with .exe suffix
--gc-sections Remove unused sections (on some targets)
--no-gc-sections Don't remove unused sections (default)
--print-gc-sections List removed unused sections on stderr
--no-print-gc-sections Do not list removed unused sections
--hash-size= Set default hash table size close to
--help Print option help
-init SYMBOL Call SYMBOL at load-time
-Map FILE Write a map file
--no-define-common Do not define Common storage
--no-demangle Do not demangle symbol names
--no-keep-memory Use less memory and more disk I/O
--no-undefined Do not allow unresolved references in object files
--allow-shlib-undefined Allow unresolved references in shared libraries
--no-allow-shlib-undefined Do not allow unresolved references in shared libs
--allow-multiple-definition Allow multiple definitions
--no-undefined-version Disallow undefined version
--default-symver Create default symbol version
--default-imported-symver Create default symbol version for imported symbols
--no-warn-mismatch Don't warn about mismatched input files
--no-warn-search-mismatch Don't warn on finding an incompatible library
--no-whole-archive Turn off --whole-archive
--noinhibit-exec Create an output file even if errors occur
-nostdlib Only use library directories specified on
the command line
--oformat TARGET Specify target of output file
--print-output-format Print default output format
--print-sysroot Print current sysroot
-qmagic Ignored for Linux compatibility
--reduce-memory-overheads Reduce memory overheads, possibly taking much longer
--relax Reduce code size by using target specific optimizations
--no-relax Do not use relaxation techniques to reduce code size
--retain-symbols-file FILE Keep only symbols listed in FILE
-rpath PATH Set runtime shared library search path
-rpath-link PATH Set link time shared library search path
-shared, -Bshareable Create a shared library
-pie, --pic-executable Create a position independent executable
--sort-common [=ascending|descending]
Sort common symbols by alignment [in specified order]
--sort-section name|alignment
Sort sections by name or maximum alignment
--spare-dynamic-tags COUNT How many tags to reserve in .dynamic section
--split-by-file [=SIZE] Split output sections every SIZE octets
--split-by-reloc [=COUNT] Split output sections every COUNT relocs
--stats Print memory usage statistics
--target-help Display target specific options
--task-link SYMBOL Do task level linking
--traditional-format Use same format as native linker
--section-start SECTION=ADDRESS
Set address of named section
-Tbss ADDRESS Set address of .bss section
-Tdata ADDRESS Set address of .data section
-Ttext ADDRESS Set address of .text section
-Ttext-segment ADDRESS Set address of text segment
-Trodata-segment ADDRESS Set address of rodata segment
-Tldata-segment ADDRESS Set address of ldata segment
--unresolved-symbols=
How to handle unresolved symbols. is:
ignore-all, report-all, ignore-in-object-files,
ignore-in-shared-libs
--verbose [=NUMBER] Output lots of information during link
--version-script FILE Read version information script
--version-exports-section SYMBOL
Take export symbols list from .exports, using
SYMBOL as the version.
--dynamic-list-data Add data symbols to dynamic list
--dynamic-list-cpp-new Use C++ operator new/delete dynamic list
--dynamic-list-cpp-typeinfo Use C++ typeinfo dynamic list
--dynamic-list FILE Read dynamic list
--warn-common Warn about duplicate common symbols
--warn-constructors Warn if global constructors/destructors are seen
--warn-multiple-gp Warn if the multiple GP values are used
--warn-once Warn only once per undefined symbol
--warn-section-align Warn if start of section changes due to alignment
--warn-shared-textrel Warn if shared object has DT_TEXTREL
--warn-alternate-em Warn if an object has alternate ELF machine code
--warn-unresolved-symbols Report unresolved symbols as warnings
--error-unresolved-symbols Report unresolved symbols as errors
--whole-archive Include all objects from following archives
--wrap SYMBOL Use wrapper functions for SYMBOL
--ignore-unresolved-symbol SYMBOL
Unresolved SYMBOL will not cause an error or warning
--push-state Push state of flags governing input file handling
--pop-state Pop state of flags governing input file handling
@FILE Read options from FILE
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MinGW v5.1.0 32-bit Options - Group 17
C:/WorkLib/MinGW/Bin/../lib/gcc/i686-w64-mingw32/5.1.0/../../../../i686-w64-mingw32/bin/ld.exe: supported targets: pe-i386 pei-i386 elf32-i386 elf32-little elf32-big plugin srec symbolsrec verilog tekhex binary ihex
C:/WorkLib/MinGW/Bin/../lib/gcc/i686-w64-mingw32/5.1.0/../../../../i686-w64-mingw32/bin/ld.exe: supported emulations: i386pe
C:/WorkLib/MinGW/Bin/../lib/gcc/i686-w64-mingw32/5.1.0/../../../../i686-w64-mingw32/bin/ld.exe: emulation specific options:
i386pe:
--base_file Generate a base file for relocatable DLLs
--dll Set image base to the default for DLLs
--file-alignment Set file alignment
--heap Set initial size of the heap
--image-base Set start address of the executable
--major-image-version Set version number of the executable
--major-os-version Set minimum required OS version
--major-subsystem-version Set minimum required OS subsystem version
--minor-image-version Set revision number of the executable
--minor-os-version Set minimum required OS revision
--minor-subsystem-version Set minimum required OS subsystem revision
--section-alignment Set section alignment
--stack Set size of the initial stack
--subsystem [:] Set required OS subsystem [& version]
--support-old-code Support interworking with old code
--[no-]leading-underscore Set explicit symbol underscore prefix mode
--thumb-entry= Set the entry point to be Thumb
--[no-]insert-timestamp Use a real timestamp rather than zero (default).
This makes binaries non-deterministic
--add-stdcall-alias Export symbols with and without @nn
--disable-stdcall-fixup Don't link _sym to _sym@nn
--enable-stdcall-fixup Link _sym to _sym@nn without warnings
--exclude-symbols sym,sym,... Exclude symbols from automatic export
--exclude-all-symbols Exclude all symbols from automatic export
--exclude-libs lib,lib,... Exclude libraries from automatic export
--exclude-modules-for-implib mod,mod,...
Exclude objects, archive members from auto
export, place into import library instead.
--export-all-symbols Automatically export all globals to DLL
--kill-at Remove @nn from exported symbols
--out-implib Generate import library
--output-def Generate a .DEF file for the built DLL
--warn-duplicate-exports Warn about duplicate exports
--compat-implib Create backward compatible import libs;
create __imp_ as well.
--enable-auto-image-base[=] Automatically choose image base for DLLs
(optionally starting with address) unless
specifically set with --image-base
--disable-auto-image-base Do not auto-choose image base. (default)
--dll-search-prefix= When linking dynamically to a dll without
an importlib, use .dll
in preference to lib.dll
--enable-auto-import Do sophisticated linking of _sym to
__imp_sym for DATA references
--disable-auto-import Do not auto-import DATA items from DLLs
--enable-runtime-pseudo-reloc Work around auto-import limitations by
adding pseudo-relocations resolved at
runtime.
--disable-runtime-pseudo-reloc Do not add runtime pseudo-relocations for
auto-imported DATA.
--enable-extra-pe-debug Enable verbose debug output when building
or linking to DLLs (esp. auto-import)
--large-address-aware Executable supports virtual addresses
greater than 2 gigabytes
--disable-large-address-aware Executable does not support virtual
addresses greater than 2 gigabytes
--enable-long-section-names Use long COFF section names even in
executable image files
--disable-long-section-names Never use long COFF section names, even
in object files
--dynamicbase Image base address may be relocated using
address space layout randomization (ASLR)
--forceinteg Code integrity checks are enforced
--nxcompat Image is compatible with data execution prevention
--no-isolation Image understands isolation but do not isolate the image
--no-seh Image does not use SEH. No SE handler may
be called in this image
--no-bind Do not bind this image
--wdmdriver Driver uses the WDM model
--tsaware Image is Terminal Server aware
--build-id[=STYLE] Generate build ID
Report bugs to <>
For bug reporting instructions, please see:
http://sourceforge.net/projects/mingw-w64
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