自己收集的linux入门到学懂高级编程书集
包括linux程序设计第三版
源代码在线查看： submodel-options.html
Using the GNU Compiler Collection (GCC) Copyright © 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with the Invariant Sections being "GNU General Public License" and "Funding Free Software", the Front-Cover texts being (a) (see below), and with the Back-Cover Texts being (b) (see below). A copy of the license is included in the section entitled "GNU Free Documentation License". (a) The FSF's Front-Cover Text is: A GNU Manual (b) The FSF's Back-Cover Text is: You have freedom to copy and modify this GNU Manual, like GNU software. Copies published by the Free Software Foundation raise funds for GNU development.--> pre.display { font-family:inherit } pre.format { font-family:inherit } pre.smalldisplay { font-family:inherit; font-size:smaller } pre.smallformat { font-family:inherit; font-size:smaller } pre.smallexample { font-size:smaller } pre.smalllisp { font-size:smaller } --> Node: Submodel Options, Next: Code Gen Options, Previous: Target Options, Up: Invoking GCC Hardware Models and Configurations Earlier we discussed the standard option -b which chooses among different installed compilers for completely different target machines, such as VAX vs. 68000 vs. 80386. In addition, each of these target machine types can have its own special options, starting with -m, to choose among various hardware models or configurations--for example, 68010 vs 68020, floating coprocessor or none. A single installed version of the compiler can compile for any model or configuration, according to the options specified. Some configurations of the compiler also support additional special options, usually for compatibility with other compilers on the same platform. These options are defined by the macro TARGET_SWITCHES in the machine description. The default for the options is also defined by that macro, which enables you to change the defaults. M680x0 Options: M68hc1x Options: VAX Options: SPARC Options: ARM Options: MN10300 Options: M32R/D Options: RS/6000 and PowerPC Options: Darwin Options: MIPS Options: i386 and x86-64 Options: HPPA Options: DEC Alpha Options: DEC Alpha/VMS Options: H8/300 Options: SH Options: System V Options: TMS320C3x/C4x Options: V850 Options: ARC Options: NS32K Options: AVR Options: MCore Options: IA-64 Options: S/390 and zSeries Options: CRIS Options: MMIX Options: PDP-11 Options: Xstormy16 Options: Xtensa Options: FRV Options:
