3.17 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.

3.17.1 M680x0 Options
3.17.2 M68hc1x Options
3.17.3 VAX Options
3.17.4 SPARC Options
3.17.5 Convex Options
3.17.6 AMD29K Options
3.17.7 ARM Options
3.17.8 MN10200 Options
3.17.9 MN10300 Options
3.17.10 M32R/D Options
3.17.11 M88K Options
3.17.12 IBM RS/6000 and PowerPC Options
3.17.13 IBM RT Options
3.17.14 MIPS Options
3.17.15 Intel 386 Options
3.17.16 HPPA Options
3.17.17 Intel 960 Options
3.17.18 DEC Alpha Options
3.17.19 Clipper Options
3.17.20 H8/300 Options
3.17.21 SH Options
3.17.22 Options for System V
3.17.23 TMS320C3x/C4x Options
3.17.24 V850 Options
3.17.25 ARC Options
3.17.26 NS32K Options
3.17.27 AVR Options
3.17.28 MCore Options
3.17.29 IA-64 Options
3.17.30 D30V Options