Usage: gcc [options] file...
Options:
--help Display this 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=<lib> Display the full path to library <lib>
-print-prog-name=<prog> Display the full path to compiler component <prog>
-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
-Wa,<options> Pass comma-separated <options> on to the assembler
-Wp,<options> Pass comma-separated <options> on to the preprocessor
-Wl,<options> Pass comma-separated <options> on to the linker
-Xlinker <arg> Pass <arg> on to the linker
-save-temps Do not delete intermediate files
-pipe Use pipes rather than intermediate files
-specs=<file> Override builtin specs with the contents of <file>
-B <directory> Add <directory> to the compiler's search paths
-b <machine> Run gcc for target <machine>, if installed
-V <version> Run gcc version number <version>, if installed
-v Display the programs invoked by the compiler
-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 <file> Place the output into <file>
-x <language> Specify the language of the following input files
Permissable languages include: c c++ assembler none
'none' means revert to the default behaviour of
guessing the language based on the file's extension
Options starting with -g, -f, -m, -O or -W are automatically passed on to
the various sub-processes invoked by gcc. In order to pass other options
on to these processes the -W<letter> options must be used.
Usage: cpp.exe [switches] input output
Switches:
-include <file> Include the contents of <file> before other files
-imacros <file> Accept definition of marcos in <file>
-iprefix <path> Specify <path> as a prefix for next two options
-iwithprefix <dir> Add <dir> to the end of the system include paths
-iwithprefixbefore <dir> Add <dir> to the end of the main include paths
-isystem <dir> Add <dir> to the start of the system include paths
-idirafter <dir> Add <dir> to the end of the system include paths
-I <dir> Add <dir> to the end of the main include paths
-nostdinc Do not search the system include directories
-nostdinc++ Do not search the system include directories for C++
-o <file> Put output into <file>
-pedantic Issue all warnings demanded by strict ANSI C
-traditional Follow K&R pre-processor behaviour
-trigraphs Support ANSI C trigraphs
-lang-c Assume that the input sources are in C
-lang-c89 Assume that the input sources are in C89
-lang-c++ Assume that the input sources are in C++
-lang-objc Assume that the input sources are in ObjectiveC
-lang-objc++ Assume that the input sources are in ObjectiveC++
-lang-asm Assume that the input sources are in assembler
-lang-chill Assume that the input sources are in Chill
-+ Allow parsing of C++ style features
-w Inhibit warning messages
-Wtrigraphs Warn if trigraphs are encountered
-Wno-trigraphs Do not warn about trigraphs
-Wcomment{s} Warn if one comment starts inside another
-Wno-comment{s} Do not warn about comments
-Wtraditional Warn if a macro argument is/would be turned into
a string if -tradtional is specified
-Wno-traditional Do not warn about stringification
-Wundef Warn if an undefined macro is used by #if
-Wno-undef Do not warn about testing udefined macros
-Wimport Warn about the use of the #import directive
-Wno-import Do not warn about the use of #import
-Werror Treat all warnings as errors
-Wno-error Do not treat warnings as errors
-Wall Enable all preprocessor warnings
-M Generate make dependencies
-MM As -M, but ignore system header files
-MD As -M, but put output in a .d file
-MMD As -MD, but ignore system header files
-MG Treat missing header file as generated files
-g Include #define and #undef directives in the output
-D<macro> Define a <macro> with string '1' as its value
-D<macro>=<val> Define a <macro> with <val> as its value
-A<question> (<answer>) Assert the <answer> to <question>
-U<macro> Undefine <macro>
-u or -undef Do not predefine any macros
-v Display the version number
-H Print the name of header files as they are used
-C Do not discard comments
-dM Display a list of macro definitions active at end
-dD Preserve macro definitions in output
-dN As -dD except that only the names are preserved
-dI Include #include directives in the output
-ifoutput Describe skipped code blocks in output
-P Do not generate #line directives
-$ Do not include '$' in identifiers
-remap Remap file names when including files.
-h or --help Display this information
Usage: cc1.exe input [switches]
Switches:
-ffixed-<register> Mark <register> as being unavailable to the compiler
-fcall-used-<register> Mark <register> as being corrupted by function calls
-fcall-saved-<register> Mark <register> as being preserved across functions
-fprefix-function-name Add a prefix to all function names
-fcheck-memory-usage Generate code to check every memory access
-fstrict-aliasing Assume strict aliasing rules apply
-fargument-noalias-global Assume arguments do not alias each other or globals
-fargument-noalias Assume arguments may alias globals but not each other
-fargument-alias Specify that arguments may alias each other & globals
-fstack-check Insert stack checking code into the program
-fpack-struct Pack structure members together without holes
-fregmove Enables a regoster move optimisation
-fgnu-linker Output GNU ld formatted global initialisers
-fverbose-asm Add extra commentry to assembler output
-ffunction-sections place each function into its own section
-finhibit-size-directive Do not generate .size directives
-fcommon Do not put unitialised globals in the common section
-ffast-math Improve FP speed by violating ANSI & IEEE rules
-fbranch-probabilities Use profiling information for branch porbabilities
-ftest-coverage Create data files needed by gcov
-fprofile-arcs Insert arc based program profiling code
-fasynchronous-exceptions Support asynchronous exceptions
-fsjlj-exceptions Use setjmp/longjmp to handle exceptions
-fnew-exceptions Use the new model for exception handling
-fexceptions Enable exception handling
-fpic Generate position independent code, if possible
-fschedule-insns2 Run two passes of the instruction scheduler
-fschedule-insns Reschedule instructions to avoid pipeline stalls
-fpretend-float Pretend that host and target use the same FP format
-frerun-loop-opt Run the loop optimiser twice
-frerun-cse-after-loop Run CSE pass after loop optimisations
-fgcse Perform the global common subexpression elimination
-fdelayed-branch Attempt to fill delay slots of branch instructions
-freg-struct-return Return 'short' aggregates in registers
-fpcc-struct-return Return 'short' aggregates in memory, not registers
-fcaller-saves Enable saving registers around function calls
-fshared-data Mark data as shared rather than private
-fsyntax-only Check for syntax errors, then stop
-fkeep-static-consts Emit static const variables even if they are not used
-finline Pay attention to the 'inline' keyword
-fkeep-inline-functions Generate code for funcs even if they are fully inlined
-finline-functions Integrate simple functions into their callers
-ffunction-cse Allow function addresses to be held in registers
-fforce-addr Copy memory address constants into regs before using
-fforce-mem Copy memory operands into registers before using
-fpeephole Enable machine specific peephole optimisations
-fwritable-strings Store strings in writable data section
-freduce-all-givs Strength reduce all loop general induction variables
-fmove-all-movables Force all loop invariant computations out of loops
-funroll-all-loops Perofm loop onrolling for all loops
-funroll-loops Perform loop unrolling when interation count is known
-fstrength-reduce Perform strength reduction optimisations
-fthread-jumps Perform jump threading optimisations
-fexpensive-optimizations Perform a number of minor, expensive optimisations
-fcse-skip-blocks When running CSE, follow conditional jumps
-fcse-follow-jumps When running CSE, follow jumps to their targets
-fomit-frame-pointer When possible do not generate stack frames
-fdefer-pop Defer popping functions args from stack until later
-fvolatile-global Consider all mem refs to global data to be volatile
-fvolatile Consider all mem refs through pointers as volatile
-ffloat-store Do not store floats in registers
-O[number] Set optimisation level to [number]
-Os Optimise for space rather than speed
-pedantic Issue warnings needed by strict compliance to ANSI C
-pedantic-errors Like -pedantic except that errors are produced
-w Suppress warnings
-W Enable extra warnings
-Winline Warn when an inlined function cannot be inlined
-Wuninitialized Warn about unitialized automatic variables
-Wcast-align Warn about pointer casts which increase alignment
-Waggregate-return Warn about returning structures, unions or arrays
-Wswitch Warn about enumerated switches missing a specific case
-Wshadow Warn when one local variable shadows another
-Wunused Warn when a variable is unused
-Wid-clash-<num> Warn if 2 identifiers have the same first <num> chars
-Wlarger-than-<number> Warn if an object is larger than <number> bytes
-p Enable function profiling
-a Enable block profiling
-ax Enable jump profiling
-o <file> Place output into <file>
-G <number> Put global and static data smaller than <number>
bytes into a special section (on some targets)
-gcoff Generate COFF format debug output
-gstabs+ Generate extended STABS format debug output
-gstabs Generate STABS format debug output
-ggdb Generate default extended debug format output
-g Generate default debug format output
-aux-info <file> Emit declaration info into <file>.X
-quiet Do not display functions compiled or elapsed time
-version Display the compiler's version
-d[letters] Enable dumps from specific passes of the compiler
-dumpbase <file> Base name to be used for dumps from specific passes
-sched-verbose-<number> Set the verbosity level of the scheduler
--help Display this information
Language specific options:
-ansi Compile just for ANSI C
-fallow-single-precisio Do not promote floats to double if using -traditional
-funsigned-bitfields Make bitfields by unsigned by default
-fsigned-char Make 'char' be signed by default
-funsigned-char Make 'char' be unsigned by default
-traditional Attempt to support traditional K&R style C
-fno-asm Do not recognise the 'asm' keyword
-fno-builtin Do not recognise any built in functions
-fhosted Assume normal C execution environment
-ffreestanding Assume that standard libraries & main might not exist
-fcond-mismatch Allow different types as args of ? operator
-fdollars-in-identifier Allow the use of $ inside indentifiers
-fno-ident Ignore #ident directives
-fshort-double Use the same size for double as for float
-fshort-enums Use the smallest fitting integer to hold enums
-Wall Enable most warning messages
-Wbad-function-cast Warn about casting functions to incompatible types
-Wcast-qual Warn about casts which discard qualifiers
-Wchar-subscripts Warn about subscripts whoes type is 'char'
-Wcomment Warn if nested comments are detected
-Wconversion Warn about possibly confusing type conversions
-Wformat Warn about printf format anomalies
-Wimplicit-function-dec Warn about implicit function declarations
-Wimplicit-int Warn when a declaration does not specify a type
-Wimport Warn about the use of the #import directive
-Wno-long-long Do not warn about using 'long long' when -pedantic
-Wmain Warn about suspicious declarations of main
-Wmissing-braces Warn about possibly missing braces around initialisers
-Wmissing-declarations Warn about global funcs without previous declarations
-Wmissing-prototypes Warn about global funcs without prototypes
-Wmultichar Warn about use of multicharacter literals
-Wnested-externs Warn about externs not at file scope level
-Wparentheses Warn about possible missing parentheses
-Wpointer-arith Warn about function pointer arithmetic
-Wredundant-decls Warn about multiple declarations of the same object
-Wsign-compare Warn about signed/unsigned comparisons
-Wunknown-pragmas Warn about unrecognised pragmas
-Wstrict-prototypes Warn about non-prototyped function decls
-Wtraditional Warn about constructs whoes meaning change in ANSI C
-Wtrigraphs Warn when trigraphs are encountered
-Wwrite-strings Mark strings as 'const char *'
There are undocumented language specific options as well.
Options for Objective C:
-gen-decls Dump decls to a .decl file
-fgnu-runtime Generate code for GNU runtime envrionment
-fnext-runtime Generate code for NeXT runtime environment
-Wselector Warn if a selector has multiple methods
-Wno-protocol Do not warn if inherited methods are unimplemented
-print-objc-runtime-inf Generate C header of platform specific features
Options for C++:
-fno-access-control Do not obey access control semantics
-fall-virtual Make all member functions virtual
-falt-external-template Change when template instances are emitted
-fcheck-new Check the return value of new
-fconserve-space Reduce size of object files
-fno-default-inline Do not inline mmeber functions be default
-fno-rtti Do not generate run time type descriptor information
-fno-for-scope Scope of for-init-statement vars extends outside
-fguiding-decls Implement guiding declarations
-fno-gnu-keywords Do not recognise GNU defined keywords
-fhandle-exceptions Enable exception handling
-fhandle-signatures Handle signature language constructs
-fhonor-std Do not ignore the namespace standard
-fhuge-objects Enable support for huge objects
-fno-implement-inlines Export functions even if they can be inlined
-fimplicit-templates Emit implicit instatiations if needed
-flabels-ok Labels can be used as first class objects
-fmemoize-lookups Enable caching of member function resolutions
-fname-mangling-version Set the version of name mangling to use
-fnew-abi Enable experimental ABI changes
-fno-nonnull-objects Do not assume that a reference is always valid
-foperator-names Recognise and/bitand/bitor/compl/not/or/xor
-fno-optional-diags Disable optional diagnostics
-frepo Enable automatic template instantiation
-fsave-memoized Save cache of member function resolutions
-fsquangle Enable squashed name mangling
-fstats Display statistics accumulated during compilation
-fno-strict-prototype Do not assume that empty prototype means no args
-ftemplate-depth- Specify maximum template instantiation depth
-fthis-is-variable Make 'this' not be type '* const'
-fvtable-thunks Implement vtables using thunks
-fweak Emit common-like symbols as weak symbols
-fxref Emit cross referencing information
-Wreturn-type Warn about inconsistent return types
-Woverloaded-virtual Warn about overloaded virtual function names
-Wctor-dtor-privacy Warn when all ctors/dtors are private
-Wnon-virtual-dtor Warn about non virtual destructors
-Wextern-inline Warn when a function is declared extern, then inline
-Wreorder Warn when the compiler reorders code
-Wsynth Warn when synthesis behaviour differs from Cfront
-Wpmf-conversions Warn when type converting pointers to member functions
-Weffc++ Warn about violations of Effective C++ style rules
-Wsign-promo Warn when overload promotes from unsigned to signed
-Wold-style-cast Warn if a C style cast is used in a program
Target specific options:
wide-multiply multiplies of 32 bits are 64 bits
no-wide-multiply multiplies of 32 bits constrained to 32 bits
fancy-math-387 Generate sin, cos, sqrt for FPU
no-fancy-math-387 Do not generate sin, cos, sqrt for 387
no-fp-ret-in-387 Do not return values of functions in FPU registers
fp-ret-in-387 Return values of functions in FPU registers
no-ieee-fp Do not use IEEE math for fp comparisons
ieee-fp Use IEEE math for fp comparisons
no-svr3-shlib Uninitialized locals in .data
svr3-shlib Uninitialized locals in .bss
no-align-double Align doubles on word boundary
align-double Align some doubles on dword boundary
no-rtd Use normal calling convention
rtd Alternate calling convention
pentiumpro Optimize for Pentium Pro, Pentium II
pentium Optimize for Pentium
486 Optimize for i80486
386 Optimize for i80386
no-soft-float Use hardware fp
soft-float Do not use hardware fp
hard-float Use hardware fp
no-80387 Do not use hardware fp
80387 Use hardware fp
align-functions= Function starts are aligned to this power of 2
align-jumps= Jump targets are aligned to this power of 2
align-loops= Loop code aligned to this power of 2
regparm= Number of registers used to pass integer arguments
reg-alloc= Control allocation order of integer registers
arch= Generate code for given CPU
cpu= Schedule code for given CPU
There are undocumented target specific options as well.
Usage: //f/drived/cygnus/cygwin-b20/H-i586-cygwin32/i586-cygwin32/bin/as.exe [option...] [asmfile...]
Options:
-a[sub-option...] turn on listings
Sub-options [default hls]:
c omit false conditionals
d omit debugging directives
h include high-level source
l include assembly
m include macro expansions
n omit forms processing
s include symbols
=file set listing file name (must be last sub-option)
-D produce assembler debugging messages
--defsym SYM=VAL define symbol SYM to given value
-f skip whitespace and comment preprocessing
--gstabs generate stabs debugging information
--help show this message and exit
-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
--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 suppress warnings
--itbl INSTTBL extend instruction set to include instructions
matching the specifications defined in file INSTTBL
-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
-m do long jump
Report bugs to bug-gnu-utils@gnu.org
Usage: //f/drived/cygnus/cygwin-b20/H-i586-cygwin32/i586-cygwin32/bin/ld [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
-f SHLIB, --auxiliary SHLIB Auxiliary filter for shared object symbol table
-F SHLIB, --filter SHLIB Filter for shared object symbol table
-g Ignored
--gc-sections Remove unused sections on certain targets
--no-gc-sections (Don't) Remove unused sections on certain targets
-G SIZE, --gpsize SIZE Small data size (if no size, same as --shared)
-h FILENAME, -soname FILENAME
Set internal name of shared library
-l LIBNAME, --library LIBNAME
Search for library LIBNAME
-L DIRECTORY, --library-path DIRECTORY
Add DIRECTORY to library search path
-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
-o FILE, --output FILE Set output file name
-O Ignored
-r, -i, --relocateable Generate relocateable 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
-t, --trace Trace file opens
-T FILE, --script FILE Read linker script
-u SYMBOL, --undefined SYMBOL
Start with undefined reference to SYMBOL
-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
-y SYMBOL, --trace-symbol SYMBOL
Trace mentions of SYMBOL
-Y PATH Default search path for Solaris compatibility
-z KEYWORD Ignored for Solaris compatibility
-(, --start-group Start a group
-), --end-group End a group
-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
--cref Output cross reference table
--defsym SYMBOL=EXPRESSION Define a symbol
--dynamic-linker PROGRAM Set the dynamic linker to use
-EB Link big-endian objects
-EL Link little-endian objects
--embedded-relocs Generate embedded relocs
--force-exe-suffix Force generation of file with .exe suffix
--help Print option help
-Map FILE Write a map file
--no-keep-memory Use less memory and more disk I/O
--no-warn-mismatch Don't warn about mismatched input files
--no-whole-archive Turn off --whole-archive
--noinhibit-exec Create an output file even if errors occur
--oformat TARGET Specify target of output file
-qmagic Ignored for Linux compatibility
-Qy Ignored for SVR4 compatibility
--relax Relax branches on certain targets
--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
--sort-common Sort common symbols by size
--split-by-file Split output sections for each file
--split-by-reloc COUNT Split output sections every COUNT relocs
--stats Print memory usage statistics
--task-link SYMBOL Do task level linking
--traditional-format Use same format as native linker
-Tbss ADDRESS Set address of .bss section
-Tdata ADDRESS Set address of .data section
-Ttext ADDRESS Set address of .text section
-Ur Build global constructor/destructor tables
--verbose 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.
--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
--whole-archive Include all objects from following archives
--wrap SYMBOL Use wrapper functions for SYMBOL
//f/drived/cygnus/cygwin-b20/H-i586-cygwin32/i586-cygwin32/bin/ld: supported targets: pe-i386 pei-i386 srec symbolsrec tekhex binary ihex
//f/drived/cygnus/cygwin-b20/H-i586-cygwin32/i586-cygwin32/bin/ld: supported emulations: i386pe
//f/drived/cygnus/cygwin-b20/H-i586-cygwin32/i586-cygwin32/bin/ld: emulation specific options:
i386pe:
--base_file <basefile> Generate a base file for relocatable DLLs
--dll Set image base to the default for DLLs
--file-alignment <size> Set file alignment
--heap <size> Set initial size of the heap
--image-base <address> Set start address of the executable
--major-image-version <number> Set version number of the executable
--major-os-version <number> Set minimum required OS version
--major-subsystem-version <number> Set minimum required OS subsystem version
--minor-image-version <number> Set revision number of the executable
--minor-os-version <number> Set minimum required OS revision
--minor-subsystem-version <number> Set minimum required OS subsystem revision
--section-alignment <size> Set section alignment
--stack <size> Set size of the initial stack
--subsystem <name>[:<version>] Set required OS subsystem [& version]
--support-old-code Support interworking with old code
Report bugs to bug-gnu-utils@gnu.org
Report bugs to egcs-bugs@cygnus.com.
Please see the file BUGS (included with the sources) first.
