C.4 Specifying Names for Hosts and Targets

The specifications used for hosts and targets in the configure script are based on a three-part naming scheme, but some short predefined aliases are also supported. The full naming scheme encodes three pieces of information in the following pattern:

     architecture-vendor-os

For example, you can use the alias sun4 as a host argument, or as the value for target in a --target=target option. The equivalent full name is ‘sparc-sun-sunos4’.

The configure script accompanying gdb does not provide any query facility to list all supported host and target names or aliases. configure calls the Bourne shell script config.sub to map abbreviations to full names; you can read the script, if you wish, or you can use it to test your guesses on abbreviations—for example:

     % sh config.sub i386-linux
     i386-pc-linux-gnu
     % sh config.sub alpha-linux
     alpha-unknown-linux-gnu
     % sh config.sub hp9k700
     hppa1.1-hp-hpux
     % sh config.sub sun4
     sparc-sun-sunos4.1.1
     % sh config.sub sun3
     m68k-sun-sunos4.1.1
     % sh config.sub i986v
     Invalid configuration `i986v': machine `i986v' not recognized

config.sub is also distributed in the gdb source directory (gdb-8.3.0.20190709-git, for version 8.3.0.20190709-git).