gcc.txt

LINUX 下的 NACHOS 系统 实现系统调度的算法功能

       _f_i_l_e..MM
           Objective-C++ source code.  Note that you must link with the
           _l_i_b_o_b_j_c library to make an Objective-C++ program work.  Note that
           ..MM refers to a literal capital M.

       _f_i_l_e..mmiiii
           Objective-C++ source code which should not be preprocessed.

       _f_i_l_e..hh
           C, C++, Objective-C or Objective-C++ header file to be turned into
           a precompiled header.

       _f_i_l_e..cccc
       _f_i_l_e..ccpp
       _f_i_l_e..ccxxxx
       _f_i_l_e..ccpppp
       _f_i_l_e..CCPPPP
       _f_i_l_e..cc++++
       _f_i_l_e..CC
           C++ source code which must be preprocessed.  Note that in ..ccxxxx, the
           last two letters must both be literally xx.  Likewise, ..CC refers to
           a literal capital C.

       _f_i_l_e..hhhh
       _f_i_l_e..HH
           C++ header file to be turned into a precompiled header.

       _f_i_l_e..ff
       _f_i_l_e..ffoorr
       _f_i_l_e..FFOORR
           Fortran source code which should not be preprocessed.

       _f_i_l_e..FF
       _f_i_l_e..ffpppp
       _f_i_l_e..FFPPPP
           Fortran source code which must be preprocessed (with the tradi-
           tional preprocessor).

       _f_i_l_e..rr
           Fortran source code which must be preprocessed with a RATFOR pre-
           processor (not included with GCC).

       _f_i_l_e..ff9900
       _f_i_l_e..ff9955
           Fortran 90/95 source code which should not be preprocessed.

       _f_i_l_e..aaddss
           Ada source code file which contains a library unit declaration (a
           declaration of a package, subprogram, or generic, or a generic
           instantiation), or a library unit renaming declaration (a package,
           generic, or subprogram renaming declaration).  Such files are also
           called _s_p_e_c_s.

       _f_i_l_e..aaddbb
           Ada source code file containing a library unit body (a subprogram
           or package body).  Such files are also called _b_o_d_i_e_s.

       _f_i_l_e..ss
           Assembler code.

       _f_i_l_e..SS
           Assembler code which must be preprocessed.

       _o_t_h_e_r
           An object file to be fed straight into linking.  Any file name with
           no recognized suffix is treated this way.

       You can specify the input language explicitly with the --xx option:

       --xx _l_a_n_g_u_a_g_e
           Specify explicitly the _l_a_n_g_u_a_g_e for the following input files
           (rather than letting the compiler choose a default based on the
           file name suffix).  This option applies to all following input
           files until the next --xx option.  Possible values for _l_a_n_g_u_a_g_e are:

                   c  c-header  c-cpp-output
                   c++  c++-header  c++-cpp-output
                   objective-c  objective-c-header  objective-c-cpp-output
                   objective-c++ objective-c++-header objective-c++-cpp-output
                   assembler  assembler-with-cpp
                   ada
                   f77  f77-cpp-input  ratfor
                   f95
                   java
                   treelang

       --xx nnoonnee
           Turn off any specification of a language, so that subsequent files
           are handled according to their file name suffixes (as they are if
           --xx has not been used at all).

       --ppaassss--eexxiitt--ccooddeess
           Normally the ggcccc program will exit with the code of 1 if any phase
           of the compiler returns a non-success return code.  If you specify
           --ppaassss--eexxiitt--ccooddeess, the ggcccc program will instead return with numeri-
           cally highest error produced by any phase that returned an error
           indication.

       If you only want some of the stages of compilation, you can use --xx (or
       filename suffixes) to tell ggcccc where to start, and one of the options
       --cc, --SS, or --EE to say where ggcccc is to stop.  Note that some combinations
       (for example, --xx ccpppp--oouuttppuutt --EE) instruct ggcccc to do nothing at all.

       --cc  Compile or assemble the source files, but do not link.  The linking
           stage simply is not done.  The ultimate output is in the form of an
           object file for each source file.

           By default, the object file name for a source file is made by
           replacing the suffix ..cc, ..ii, ..ss, etc., with ..oo.

           Unrecognized input files, not requiring compilation or assembly,
           are ignored.

       --SS  Stop after the stage of compilation proper; do not assemble.  The
           output is in the form