diff options
Diffstat (limited to 'sys-utils/arch.1')
| -rw-r--r-- | sys-utils/arch.1 | 19 |
1 files changed, 17 insertions, 2 deletions
diff --git a/sys-utils/arch.1 b/sys-utils/arch.1 index a2830ed3c..9ce88db51 100644 --- a/sys-utils/arch.1 +++ b/sys-utils/arch.1 @@ -9,10 +9,25 @@ arch \- print machine architecture .SH DESCRIPTION .B arch is equivalent to -.B uname -m +.BR "uname -m" . On current Linux systems, .B arch -prints things such as "i386" or "i486". +prints things such as "i386", "i486", "i586", "alpha", "sparc", +"arm", "m68k", "mips", "ppc". .SH SEE ALSO .BR uname (1) ", " uname (2) +.\" +.\" Details: +.\" arch prints the machine part of the system_utsname struct +.\" This struct is defined in version.c, and this field is +.\" initialized with UTS_MACHINE, which is defined as $ARCH +.\" in the main Makefile. +.\" That gives the possibilities +.\" alpha arm i386 m68k mips ppc sparc sparc64 +.\" +.\" If Makefile is not edited, ARCH is guessed by +.\" ARCH := $(shell uname -m | sed -e s/i.86/i386/ -e s/sun4u/sparc64/) +.\" Then how come we get these i586 values? +.\" Well, the routine check_bugs() does system_utsname.machine[1] = '0' + x86; +.\" (called in init/main.c, defined in ./include/asm-i386/bugs.h) |