diff options
Diffstat (limited to 'usr.sbin/config/config.8')
| -rw-r--r-- | usr.sbin/config/config.8 | 42 |
1 files changed, 29 insertions, 13 deletions
diff --git a/usr.sbin/config/config.8 b/usr.sbin/config/config.8 index adffa12..01abc94 100644 --- a/usr.sbin/config/config.8 +++ b/usr.sbin/config/config.8 @@ -28,7 +28,7 @@ .\" @(#)config.8 8.2 (Berkeley) 4/19/94 .\" $FreeBSD$ .\" -.Dd December 16, 2004 +.Dd May 8, 2007 .Dt CONFIG 8 .Os .Sh NAME @@ -36,9 +36,11 @@ .Nd build system configuration files .Sh SYNOPSIS .Nm -.Op Fl Vgp +.Op Fl CVgp .Op Fl d Ar destdir .Ar SYSTEM_NAME +.Nm +.Op Fl x Ar kernel .Sh DESCRIPTION .\" This is the old version of the .\" .Nm @@ -76,6 +78,11 @@ Available options and operands: Print the .Nm version number. +.It Fl C +If the INCLUDE_CONFIG_FILE is present in a configuration file, +kernel image will contain full configuration files included +literally (preserving comments). +This flag is kept for backward compatibility. .It Fl d Ar destdir Use .Ar destdir @@ -87,6 +94,12 @@ does not append to the directory given. .It Fl g Configure a system for debugging. +.It Fl x Ar kernel +Print kernel configuration file embedded into a kernel +file. +This option makes sense only if +.Cd "options INCLUDE_CONFIG_FILE" +entry was present in your configuration file. .It Fl p Configure a system for profiling; for example, .Xr kgmon 8 @@ -151,17 +164,6 @@ the problems in the configuration file should be corrected and should be run again. Attempts to compile a system that had configuration errors are likely to fail. -.Pp -If the -.Cd "options INCLUDE_CONFIG_FILE" -is used in the configuration file the -entire input file is embedded in the new kernel. -This means that -.Xr strings 1 -can be used to extract it from a kernel: -to extract the configuration information, use the command -.Pp -.Dl "strings -n 3 kernel | sed -n 's/^___//p'" .Sh DEBUG KERNELS Traditional .Bx @@ -254,5 +256,19 @@ The .Nm utility appeared in .Bx 4.1 . +.Pp +Before support for +.Fl x +was introduced, +.Cd "options INCLUDE_CONFIG_FILE" +included entire configuration file that used to be embedded in +the new kernel. +This meant that +.Xr strings 1 +could be used to extract it from a kernel: +to extract the configuration information, you had to use +the command: +.Pp +.Dl "strings -n 3 kernel | sed -n 's/^___//p'" .Sh BUGS The line numbers reported in error messages are usually off by one. |
