Re: sysctl text definitions.
Alfred Perlstein [EMAIL PROTECTED] writes: Dag-Erling Smørgrav [EMAIL PROTECTED] writes: [EMAIL PROTECTED] ~% sysctl -d dev.cpu.0.temperature dev.cpu.0.temperature: Current temperature in degC lolwhat? When did that get implemented? Twice, actually, in 1999 by myself and in 2001 by Luigi. I recall a huge storm of protest when the definitions were included in the kernel compile file... That was the first time, and completely unjustified as there was a knob to disable it (the argument was that it would bloat picobsd). BTW, when are you going to join the 21st century and get a MUA that groks UTF-8? :) DES -- Dag-Erling Smørgrav - [EMAIL PROTECTED] ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: sysctl text definitions.
* Dag-Erling Sm??rgrav [EMAIL PROTECTED] [080126 07:10] wrote: Alfred Perlstein [EMAIL PROTECTED] writes: Dag-Erling Sm??rgrav [EMAIL PROTECTED] writes: [EMAIL PROTECTED] ~% sysctl -d dev.cpu.0.temperature dev.cpu.0.temperature: Current temperature in degC lolwhat? When did that get implemented? Twice, actually, in 1999 by myself and in 2001 by Luigi. I recall a huge storm of protest when the definitions were included in the kernel compile file... That was the first time, and completely unjustified as there was a knob to disable it (the argument was that it would bloat picobsd). o i c. :) BTW, when are you going to join the 21st century and get a MUA that groks UTF-8? :) Civil people use the eighth bit for parity or parody, but nothing else. -- - Alfred Perlstein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: sysctl text definitions.
Alfred Perlstein [EMAIL PROTECTED] writes: Dag-Erling Smørgrav [EMAIL PROTECTED] writes: BTW, when are you going to join the 21st century and get a MUA that groks UTF-8? :) Civil people use the eighth bit for parity or parody, but nothing else. Thank you for excluding roughly three quarters of the world's population from participating in the FreeBSD community under their own name. DES -- Dag-Erling Smørgrav - [EMAIL PROTECTED] ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: sysctl text definitions.
* Dag-Erling Sm??rgrav [EMAIL PROTECTED] [080126 07:28] wrote: Alfred Perlstein [EMAIL PROTECTED] writes: Dag-Erling Sm??rgrav [EMAIL PROTECTED] writes: BTW, when are you going to join the 21st century and get a MUA that groks UTF-8? :) Civil people use the eighth bit for parity or parody, but nothing else. Thank you for excluding roughly three quarters of the world's population from participating in the FreeBSD community under their own name. See that's the problem, your mailer interpreted the high bit as text instead of sarcasm. -- - Alfred Perlstein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: sysctl text definitions.
* Dag-Erling Sm??rgrav [EMAIL PROTECTED] [080125 07:58] wrote: Alfred Perlstein [EMAIL PROTECTED] writes: Hey guys, something that I've always wanted to do was actually somehow export those handy description strings from the kernel SYSCTL macros in the least obtrusive method possible. [EMAIL PROTECTED] ~% sysctl -d dev.cpu.0.temperature dev.cpu.0.temperature: Current temperature in degC lolwhat? When did that get implemented? I recall a huge storm of protest when the definitions were included in the kernel compile file... sorry for the noise. -- - Alfred Perlstein ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
Re: sysctl text definitions.
Alfred Perlstein [EMAIL PROTECTED] writes: Hey guys, something that I've always wanted to do was actually somehow export those handy description strings from the kernel SYSCTL macros in the least obtrusive method possible. [EMAIL PROTECTED] ~% sysctl -d dev.cpu.0.temperature dev.cpu.0.temperature: Current temperature in degC DES -- Dag-Erling Smørgrav - [EMAIL PROTECTED] ___ freebsd-hackers@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-hackers To unsubscribe, send any mail to [EMAIL PROTECTED]
sysctl text definitions.
Hey guys, something that I've always wanted to do was actually somehow
export those handy description strings from the kernel SYSCTL macros
in the least obtrusive method possible.
The only thing I could come up with that didn't require compiling the
files twice was to basically do some tricks where the text strings
wound up in some throw-away section of the object files.
Any suggestions on how to do this?
In psuedo-code what I would do is something like change SYSCTL_*
and add the following:
SYSCTL_INT(, text) \
...old define...\
SYSCTL_COMMENT(parent, node, text)
Also, add the following struct someplace:
struct sysctl_comment {
const char *parent;
const char *node;
const char *comment;
};
Then SYSCTL_COMMENT does something like (more psuedocode):
#define SYSCTL_COMMENT(parent, node, comment) \
.set sysctl_comments { \
struct sysctl_comment uniquifier = { \
.parent = parent; \
.node = node; \
.comment = comment; \
};
Then after building the kernel one should be able to do:
for file in kernel ${modules} ; do
strip --section=sysctl_comments file file.install
objdump --section=sysctl_comment file file.sysctl.out
sysctl_help_database_builder file.sysctl.out file.sysctl.db
done
Then these would be copied into /boot or maybe some other place
as part of the install process.
Sysctl or some other util could then read these db files to give
help with sysctls.
Any ideas/pointers on how to do this linker magic?
--
- Alfred Perlstein
___
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Re: sysctl text definitions.
On Thu, Jan 24, 2008 at 02:19:36PM -0800, Alfred Perlstein wrote: Hey guys, something that I've always wanted to do was actually somehow export those handy description strings from the kernel SYSCTL macros in the least obtrusive method possible. Likewise. The only thing I could come up with that didn't require compiling the files twice was to basically do some tricks where the text strings wound up in some throw-away section of the object files. Many years ago I started to look at this: My idea was to stick the description strings into an ELF section that was not loaded. Then these would be copied into /boot or maybe some other place as part of the install process. If the relevant ELF sections are marked unloadable then there's no reason not to just leave them in the kernel/kld file. Any ideas/pointers on how to do this linker magic? This is where I failed: My ld-foo wasn't sufficient to create the required linker scripts to make it all work. I don't remember if I kept the work I did. I thought I mentioned it on a mailing list but can't find it in my home archives or on google. -- Peter Jeremy Please excuse any delays as the result of my ISP's inability to implement an MTA that is either RFC2821-compliant or matches their claimed behaviour. pgpX75INIK7Gd.pgp Description: PGP signature
