CVS log for src/lib/libc/gen/posix_spawn.3

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Default branch: MAIN

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Add man pages for posix_spawn_file_actions_add{f,}chdir from piyush

Mostly merge changes from HEAD upto 20200411

Fix typo.

Rephrase sentence about vfork+exec in posix_spawn(3)

Try to make it less confusing.

Requested by <joerg>

Document that posix_spawn(3) uses a dedicated syscall

vfork+exec operations are done in one go. This is important information for
programs that wrap posix_spawn(3).

Quote the name "Ed" to avoid confusion with the macro "Ed".

Correct outdated note that posix_spawn(3) is implemented with vfork(2)

The original FreeBSD libc code uses vfork(2), it's not the case for NetBSD
as there is a dedicated kernel syscall.

Rebase to HEAD as of a few days ago.

sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")

Pull up the following revisions(s) (requested by martin in ticket #1023):
	lib/libc/gen/posix_spawn.3:			revision 1.5
	lib/libc/gen/posix_spawn_file_actions_addopen.3:	revision 1.4
	lib/libc/gen/posix_spawn_file_actions_init.3:	revision 1.4
	lib/libc/gen/posix_spawn_fileactions.c:		revision 1.3
	sys/compat/netbsd32/netbsd32_execve.c:		revision 1.38
	sys/kern/kern_exec.c:				revision 1.373

Limit the amount of kernel memory a posix_spawn syscall can use (for
handling the file action list) by limiting the maximum number of file
actions to twice the current file descriptor limit. Fix a few bugs in
the support functions and document the new limit. From Maxime Villard.

Pull up the following revisions(s) (requested by martin in ticket #1023):
	lib/libc/gen/posix_spawn.3:			revision 1.5
	lib/libc/gen/posix_spawn_file_actions_addopen.3:	revision 1.4
	lib/libc/gen/posix_spawn_file_actions_init.3:	revision 1.4
	lib/libc/gen/posix_spawn_fileactions.c:		revision 1.3
	sys/compat/netbsd32/netbsd32_execve.c:		revision 1.38
	sys/kern/kern_exec.c:				revision 1.373

Limit the amount of kernel memory a posix_spawn syscall can use (for
handling the file action list) by limiting the maximum number of file
actions to twice the current file descriptor limit. Fix a few bugs in
the support functions and document the new limit. From Maxime Villard.

Pull up the following revisions(s) (requested by martin in ticket #1023):
	lib/libc/gen/posix_spawn.3:			revision 1.5
	lib/libc/gen/posix_spawn_file_actions_addopen.3:	revision 1.4
	lib/libc/gen/posix_spawn_file_actions_init.3:	revision 1.4
	lib/libc/gen/posix_spawn_fileactions.c:		revision 1.3
	sys/compat/netbsd32/netbsd32_execve.c:		revision 1.38
	sys/kern/kern_exec.c:				revision 1.373

Limit the amount of kernel memory a posix_spawn syscall can use (for
handling the file action list) by limiting the maximum number of file
actions to twice the current file descriptor limit. Fix a few bugs in
the support functions and document the new limit. From Maxime Villard.

Bump date for previous.

Limit the amount of kernel memory a posix_spawn syscall can use (for handling
the file action list) by limiting the maximum number of file actions to
twice the current file descriptor limit.
Fix a few bugs in the support functions and document the new limit.
From Maxime Villard.

sync with HEAD

Use Mt for email addresses.

sync with head

file posix_spawn.3 was added on branch yamt-pagecache on 2012-04-17 00:05:19 +0000

Use major.minor for NetBSD versions.

Fix sched_set{param,scheduler} sections.

Add userland part of posix_spawn. Libc functions imported from FreeBSD.
Based on Charles Zhang's summer of code project.