diff options
Diffstat (limited to 'contrib/gcc/c.opt')
| -rw-r--r-- | contrib/gcc/c.opt | 322 |
1 files changed, 200 insertions, 122 deletions
diff --git a/contrib/gcc/c.opt b/contrib/gcc/c.opt index 0568463..8769657 100644 --- a/contrib/gcc/c.opt +++ b/contrib/gcc/c.opt @@ -1,5 +1,5 @@ ; Options for the C, ObjC, C++ and ObjC++ front ends. -; Copyright (C) 2003 Free Software Foundation, Inc. +; Copyright (C) 2003, 2004, 2005, 2006 Free Software Foundation, Inc. ; ; This file is part of GCC. ; @@ -7,59 +7,21 @@ ; the terms of the GNU General Public License as published by the Free ; Software Foundation; either version 2, or (at your option) any later ; version. -; +; ; GCC is distributed in the hope that it will be useful, but WITHOUT ANY ; WARRANTY; without even the implied warranty of MERCHANTABILITY or ; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License ; for more details. -; +; ; You should have received a copy of the GNU General Public License ; along with GCC; see the file COPYING. If not, write to the Free -; Software Foundation, 59 Temple Place - Suite 330, Boston, MA -; 02111-1307, USA. - - -; This file is processed by the script opts.sh. It is a database of -; command line options, with each record separated by a blank line, -; and each field appearing on its own line. The first field is the -; command-line switch with the leading "-" removed. All options -; beginning with "f" or "W" are implicitly assumed to take a "no-" -; form; this form should not be listed. If you do not want this -; negative form and you want it to be automatically rejected, add -; RejectNegative to the second field. - -; The second field is a space-separated list of which parts of the -; compiler recognize the switch, as declared by "Language" entries. -; If the switch takes an argument, then you should also specify -; "Joined" and/or "Separate" to indicate where the argument can -; appear. If a Joined argument can legitimately be omitted, specify -; "JoinedOrMissing" instead of "Joined". If the argument to a switch -; is a non-negative integer, you can specify "UInteger" and the switch -; decoder will convert the argument for you, or complain to the user -; if the argument is invalid. - -; The third field is the help text to output with --help. This is -; automatically line-wrapped on output. Normally the switch is output -; automatically, with the help text on the right hand side of the -; output. However, if the help text contains a tab character, the -; text to the left of the tab is output instead of the switch, and the -; text to its right forms the help. This is useful for elaborating on -; what type of argument a switch takes, for example. If the second -; field contains "Undocumented" then nothing is output with --help. -; Only do this with good reason like the switch being internal between -; the driver and the front end - it is not an excuse to leave a switch -; undocumented. - -; Comments can appear on their own line anwhere in the file, preceded -; by a semicolon. Whitespace is permitted before the semicolon. - -; For each switch XXX below, an enumeration constant is created by the -; script opts.sh spelt OPT_XXX, but with all non-alphanumeric -; characters replaced with an underscore. +; Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA +; 02110-1301, USA. -; Please try to keep this file in ASCII collating order. +; See the GCC internals manual for a description of this file's format. ; $FreeBSD$ +; Please try to keep this file in ASCII collating order. Language C @@ -95,13 +57,17 @@ C ObjC C++ ObjC++ Joined Separate E C ObjC C++ ObjC++ Undocumented +F +C ObjC C++ ObjC++ Joined Separate +-F <dir> Add <dir> to the end of the main framework include path + H C ObjC C++ ObjC++ Print the name of header files as they are used I C ObjC C++ ObjC++ Joined Separate --I <dir> Add <dir> to the end of the main include path. -I- gives more include path control; see info documentation +-I <dir> Add <dir> to the end of the main include path M C ObjC C++ ObjC++ @@ -148,22 +114,36 @@ C ObjC C++ ObjC++ Joined Separate -U<macro> Undefine <macro> Wabi -C++ ObjC++ +C++ ObjC++ Var(warn_abi) +Warn about things that will change when compiling with an ABI-compliant compiler + +Waddress +C ObjC C++ ObjC++ Var(warn_address) +Warn about suspicious uses of memory addresses Wall C ObjC C++ ObjC++ Enable most warning messages +Wassign-intercept +ObjC ObjC++ Var(warn_assign_intercept) +Warn whenever an Objective-C assignment is being intercepted by the garbage collector + Wbad-function-cast -C ObjC +C ObjC Var(warn_bad_function_cast) Warn about casting functions to incompatible types +Wc++-compat +C ObjC Var(warn_cxx_compat) +Warn about C constructs that are not in the common subset of C and C++ + + Wcast-qual -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Var(warn_cast_qual) Warn about casts which discard qualifiers Wchar-subscripts -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Var(warn_char_subscripts) Warn about subscripts whose type is \"char\" Wcomment @@ -175,27 +155,27 @@ C ObjC C++ ObjC++ Synonym for -Wcomment Wconversion -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Var(warn_conversion) Warn about possibly confusing type conversions Wctor-dtor-privacy -C++ ObjC++ +C++ ObjC++ Var(warn_ctor_dtor_privacy) Warn when all constructors and destructors are private Wdeclaration-after-statement -C ObjC +C ObjC Var(warn_declaration_after_statement) Warn when a declaration is found after a statement Wdeprecated -C++ ObjC++ +C++ ObjC++ Var(warn_deprecated) Init(1) Warn about deprecated compiler features Wdiv-by-zero -C ObjC +C ObjC C++ ObjC++ Var(warn_div_by_zero) Init(1) Warn about compile-time integer division by zero Weffc++ -C++ ObjC++ +C++ ObjC++ Var(warn_ecpp) Warn about violations of Effective C++ style rules Wendif-labels @@ -211,7 +191,7 @@ C ObjC RejectNegative Make implicit function declarations an error Wfloat-equal -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Var(warn_float_equal) Warn if testing floating point numbers for equality Wformat @@ -219,48 +199,53 @@ C ObjC C++ ObjC++ Warn about printf/scanf/strftime/strfmon format string anomalies Wformat-extra-args -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Var(warn_format_extra_args) Warn if passing too many arguments to a function for its format string Wformat-nonliteral -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Var(warn_format_nonliteral) Warn about format strings that are not literals Wformat-security -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Var(warn_format_security) Warn about possible security problems with format functions Wformat-y2k -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Var(warn_format_y2k) Warn about strftime formats yielding 2-digit years Wformat-zero-length -C ObjC +C ObjC Var(warn_format_zero_length) +Warn about zero-length formats Wformat= C ObjC C++ ObjC++ Joined Winit-self -C ObjC C++ ObjC++ -Warn about variables which are initialized to themselves. +C ObjC C++ ObjC++ Var(warn_init_self) +Warn about variables which are initialized to themselves Wimplicit C ObjC C++ ObjC++ Wimplicit-function-declaration -C ObjC +C ObjC Var(mesg_implicit_function_declaration) Init(-1) Warn about implicit function declarations Wimplicit-int -C ObjC +C ObjC Var(warn_implicit_int) Warn when a declaration does not specify a type Wimport C ObjC C++ ObjC++ -Deprecated. This switch has no effect. +Deprecated. This switch has no effect + +Wint-to-pointer-cast +C ObjC Var(warn_int_to_pointer_cast) Init(1) +Warn when there is a cast to a pointer from an integer of a different size Winvalid-offsetof -C++ ObjC++ +C++ ObjC++ Var(warn_invalid_offsetof) Init(1) Warn about invalid uses of the \"offsetof\" macro Winvalid-pch @@ -268,7 +253,7 @@ C ObjC C++ ObjC++ Warn about PCH files that are found but not used Wlong-long -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Var(warn_long_long) Init(1) Do not warn about using \"long long\" when -pedantic Wmain @@ -276,19 +261,27 @@ C ObjC Warn about suspicious declarations of \"main\" Wmissing-braces -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Var(warn_missing_braces) Warn about possibly missing braces around initializers Wmissing-declarations -C ObjC +C ObjC Var(warn_missing_declarations) Warn about global functions without previous declarations +Wmissing-field-initializers +C ObjC C++ ObjC++ Var(warn_missing_field_initializers) Init(-1) +Warn about missing fields in struct initializers + Wmissing-format-attribute -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Var(warn_missing_format_attribute) Warn about functions which might be candidates for format attributes +Wmissing-include-dirs +C ObjC C++ ObjC++ +Warn about user-specified include directories that do not exist + Wmissing-prototypes -C ObjC +C ObjC Var(warn_missing_prototypes) Warn about global functions without prototypes Wmultichar @@ -296,82 +289,111 @@ C ObjC C++ ObjC++ Warn about use of multi-character character constants Wnested-externs -C ObjC +C ObjC Var(warn_nested_externs) Warn about \"extern\" declarations not at file scope Wnon-template-friend -C++ ObjC++ +C++ ObjC++ Var(warn_nontemplate_friend) Init(1) Warn when non-templatized friend functions are declared within a template Wnon-virtual-dtor -C++ ObjC++ +C++ ObjC++ Var(warn_nonvdtor) Warn about non-virtual destructors Wnonnull -C ObjC +C ObjC Var(warn_nonnull) +Warn about NULL being passed to argument slots marked as requiring non-NULL + +Wnormalized= +C ObjC C++ ObjC++ Joined +-Wnormalized=<id|nfc|nfkc> Warn about non-normalised Unicode strings Wold-style-cast -C++ ObjC++ +C++ ObjC++ Var(warn_old_style_cast) Warn if a C-style cast is used in a program Wold-style-definition -C ObjC +C ObjC Var(warn_old_style_definition) Warn if an old-style parameter definition is used +Woverlength-strings +C ObjC C++ ObjC++ Var(warn_overlength_strings) Init(-1) +Warn if a string is longer than the maximum portable length specified by the standard + Woverloaded-virtual -C++ ObjC++ +C++ ObjC++ Var(warn_overloaded_virtual) Warn about overloaded virtual function names +Woverride-init +C ObjC Var(warn_override_init) Init(-1) +Warn about overriding initializers without side effects + Wparentheses -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Var(warn_parentheses) Warn about possibly missing parentheses Wpmf-conversions -C++ ObjC++ +C++ ObjC++ Var(warn_pmf2ptr) Init(1) Warn when converting the type of pointers to member functions Wpointer-arith -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Var(warn_pointer_arith) Warn about function pointer arithmetic +Wpointer-to-int-cast +C ObjC Var(warn_pointer_to_int_cast) Init(1) +Warn when a pointer is cast to an integer of a different size + +Wpragmas +C ObjC C++ ObjC++ Var(warn_pragmas) Init(1) +Warn about misuses of pragmas + Wprotocol -ObjC ObjC++ +ObjC ObjC++ Var(warn_protocol) Init(1) Warn if inherited methods are unimplemented Wredundant-decls -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Var(warn_redundant_decls) Warn about multiple declarations of the same object Wreorder -C++ ObjC++ +C++ ObjC++ Var(warn_reorder) Warn when the compiler reorders code Wreturn-type -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Var(warn_return_type) Warn whenever a function's return type defaults to \"int\" (C), or about inconsistent return types (C++) Wselector -ObjC ObjC++ +ObjC ObjC++ Var(warn_selector) Warn if a selector has multiple methods Wsequence-point -C ObjC +C ObjC C++ ObjC++ Var(warn_sequence_point) Warn about possible violations of sequence point rules Wsign-compare -C ObjC C++ ObjC++ +C ObjC C++ ObjC++ Var(warn_sign_compare) Init(-1) Warn about signed-unsigned comparisons Wsign-promo -C++ ObjC++ +C++ ObjC++ Var(warn_sign_promo) Warn when overload promotes from unsigned to signed +Wstrict-null-sentinel +C++ ObjC++ +Warn about uncasted NULL used as sentinel + Wstrict-prototypes -C ObjC +C ObjC Var(warn_strict_prototypes) Warn about unprototyped function declarations +Wstrict-selector-match +ObjC ObjC++ Var(warn_strict_selector_match) +Warn if type signatures of candidate methods do not match exactly + Wsynth -C++ ObjC++ +C++ ObjC++ Var(warn_synth) Warn when synthesis behavior differs from Cfront Wsystem-headers @@ -379,7 +401,7 @@ C ObjC C++ ObjC++ Do not suppress warnings from system headers Wtraditional -C ObjC +C ObjC Var(warn_traditional) Warn about features not present in traditional C Wtrigraphs @@ -387,7 +409,8 @@ C ObjC C++ ObjC++ Warn if trigraphs are encountered that might affect the meaning of the program Wundeclared-selector -ObjC ObjC++ +ObjC ObjC++ Var(warn_undeclared_selector) +Warn about @selector()s without previously declared methods Wundef C ObjC C++ ObjC++ @@ -401,13 +424,21 @@ Wunused-macros C ObjC C++ ObjC++ Warn about macros defined in the main file that are not used -Wwrite-strings +Wvariadic-macros C ObjC C++ ObjC++ -Give strings the type \"array of char\" +Do not warn about using variadic macros when -pedantic + +Wwrite-strings +C ObjC C++ ObjC++ Var(warn_write_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. + +Wpointer-sign +C ObjC Var(warn_pointer_sign) Init(-1) +Warn when a pointer differs in signedness in an assignment ansi C ObjC C++ ObjC++ -A synonym for -std=c89 (for C) or -std=c++98 (for C++). +A synonym for -std=c89 (for C) or -std=c++98 (for C++) d C ObjC C++ ObjC++ Joined @@ -447,10 +478,6 @@ fconserve-space C++ ObjC++ Reduce the size of object files -fconst-strings -C++ ObjC++ -Make string literals \"const char[]\" not \"char[]\" - fconstant-string-class= ObjC ObjC++ Joined -fconst-string-class=<name> Use class <name> for constant strings @@ -463,10 +490,6 @@ fdollars-in-identifiers C ObjC C++ ObjC++ Permit '$' as an identifier character -fdump- -C ObjC C++ ObjC++ Joined RejectNegative --fdump-<type> Dump various compiler internals to a file - felide-constructors C++ ObjC++ @@ -481,20 +504,18 @@ fexec-charset= C ObjC C++ ObjC++ Joined RejectNegative -fexec-charset=<cset> Convert all strings and character constants to character set <cset> +fextended-identifiers +C ObjC C++ ObjC++ +Permit universal character names (\\u and \\U) in identifiers + finput-charset= C ObjC C++ ObjC++ Joined RejectNegative --finput-charset=<cset> Specify the default character set for source files. +-finput-charset=<cset> Specify the default character set for source files fexternal-templates C++ ObjC++ -ffixed-form -C ObjC - -ffixed-line-length- -C ObjC Joined - ffor-scope C++ ObjC++ Scope of for-init-statement variables is local to the loop @@ -511,6 +532,10 @@ fgnu-runtime ObjC ObjC++ Generate code for GNU runtime environment +fgnu89-inline +C ObjC Var(flag_gnu89_inline) Init(-1) +Use traditional GNU semantics for inline functions + fguiding-decls C++ ObjC++ @@ -540,6 +565,10 @@ fimplicit-templates C++ ObjC++ Emit implicit instantiations of templates +ffriend-injection +C++ ObjC++ Var(flag_friend_injection) +Inject friend functions into enclosing namespace + flabels-ok C++ ObjC++ @@ -567,10 +596,35 @@ C++ ObjC++ fnonnull-objects C++ ObjC++ +; Generate special '- .cxx_construct' and '- .cxx_destruct' methods +; to initialize any non-POD ivars in Objective-C++ classes. +fobjc-call-cxx-cdtors +ObjC++ Var(flag_objc_call_cxx_cdtors) +Generate special Objective-C methods to initialize/destroy non-POD C++ ivars, if needed + +fobjc-direct-dispatch +ObjC ObjC++ Var(flag_objc_direct_dispatch) +Allow fast jumps to the message dispatcher + +; Nonzero means that we will allow new ObjC exception syntax (@throw, +; @try, etc.) in source code. fobjc-exceptions -ObjC ObjC++ +ObjC ObjC++ Var(flag_objc_exceptions) Enable Objective-C exception and synchronization syntax +fobjc-gc +ObjC ObjC++ Var(flag_objc_gc) +Enable garbage collection (GC) in Objective-C/Objective-C++ programs + +; Nonzero means that we generate NeXT setjmp based exceptions. +fobjc-sjlj-exceptions +ObjC ObjC++ Var(flag_objc_sjlj_exceptions) Init(-1) +Enable Objective-C setjmp exception handling runtime + +fopenmp +C ObjC C++ ObjC++ Var(flag_openmp) +Enable OpenMP + foperator-names C++ ObjC++ Recognize C++ kewords like \"compl\" and \"xor\" @@ -582,6 +636,10 @@ Enable optional diagnostics fpch-deps C ObjC C++ ObjC++ +fpch-preprocess +C ObjC C++ ObjC++ +Look for and use PCH files even when preprocessing + fpermissive C++ ObjC++ Downgrade conformance errors to warnings @@ -614,9 +672,6 @@ fshort-wchar C ObjC C++ ObjC++ Force the underlying type for \"wchar_t\" to be \"unsigned short\" -fshow-column -C ObjC C++ ObjC++ - fsigned-bitfields C ObjC C++ ObjC++ When \"signed\" or \"unsigned\" is not given make the bitfield signed @@ -640,12 +695,16 @@ C ObjC C++ ObjC++ Joined RejectNegative UInteger -ftabstop=<number> Distance between tab stops for column reporting ftemplate-depth- -C++ ObjC++ Joined RejectNegative UInteger +C++ ObjC++ Joined RejectNegative UInteger -ftemplate-depth-<number> Specify maximum template instantiation depth fthis-is-variable C++ ObjC++ +fthreadsafe-statics +C++ ObjC++ +-fno-threadsafe-statics Do not generate thread-safe code for initializing local statics + funsigned-bitfields C ObjC C++ ObjC++ When \"signed\" or \"unsigned\" is not given make the bitfield unsigned @@ -658,6 +717,14 @@ fuse-cxa-atexit C++ ObjC++ Use __cxa_atexit to register destructors +fuse-cxa-get-exception-ptr +C++ ObjC++ +Use __cxa_get_exception_ptr in exception handling + +fvisibility-inlines-hidden +C++ ObjC++ +Marks all inlined methods as having hidden visibility + fvtable-gc C++ ObjC++ Discard unused virtual functions @@ -698,6 +765,10 @@ imacros C ObjC C++ ObjC++ Joined Separate -imacros <file> Accept definition of macros in <file> +imultilib +C ObjC C++ ObjC++ Joined Separate +-imultilib <dir> Set <dir> to be the multilib include subdirectory + include C ObjC C++ ObjC++ Joined Separate -include <file> Include the contents of <file> before other files @@ -714,6 +785,10 @@ isystem C ObjC C++ ObjC++ Joined Separate -isystem <dir> Add <dir> to the start of the system include path +iquote +C ObjC C++ ObjC++ Joined Separate +-iquote <dir> Add <dir> to the end of the quote include path + iwithprefix C ObjC C++ ObjC++ Joined Separate -iwithprefix <dir> Add <dir> to the end of the system include path @@ -725,6 +800,9 @@ C ObjC C++ ObjC++ Joined Separate lang-asm C Undocumented +lang-fortran +C Undocumented + lang-objc C ObjC C++ ObjC++ Undocumented @@ -752,6 +830,10 @@ print-objc-runtime-info ObjC ObjC++ Generate C header of platform-specific features +print-pch-checksum +C ObjC C++ ObjC++ +Print a checksum of the executable for PCH validity checking, and stop + remap C ObjC C++ ObjC++ Remap file names when including files @@ -824,8 +906,4 @@ w C ObjC C++ ObjC++ ; Documented in common.opt -fformat-extensions -C ObjC C++ ObjC++ -Enable FreeBSD format extensions - ; This comment is to ensure we retain the blank line above. |
