Name the implementation of brk and sbrk sys_break().

[brooks]

Summary

The break() system call was renamed (several times) starting in v3 AT&T
UNIX when C was invented and break was a language keyword. The last
vestage of a need for it to be called something else (eg obreak) was removed
in r225617 which consistantly prefixed all syscall implementations.

[kib]

Don't you miss compat32 ?

sys/vm/vm_unix.c

198 ↗

(On Diff #43221)

Remove this printf, it is spam.

[kib]

And capabilities.conf are not handled.

[brooks]

• Update capabilities.conf.
• Use sys_break in linux compat.
• Handle freebsd32 and ibcs.

[brooks]

• Rebase on top of new return.

[emaste]

Change seems sensible to me.

sys/compat/linux/linux_misc.c

245 ↗

(On Diff #43454)

Change for a later commit -- on IRC @kib pointed this out to me in a different context: we shouldn't be calling the syscall entry point like this, but rather split sys_break into sys_break and kern_break, and call the latter from sys_break and linux_brk.

[brooks]

• GC a pointless printf.

[emaste]

LGTM