CVS commit: [netbsd-6] src

["Jeff Rizzo" <riz%netbsd.org@localhost>]

Module Name:    src
Committed By:   riz
Date:           Thu Apr 12 17:05:38 UTC 2012

Modified Files:
        src/lib/libc/gen [netbsd-6]: posix_spawn_fileactions.c
        src/sys/compat/netbsd32 [netbsd-6]: netbsd32.h netbsd32_execve.c
            syscalls.master
        src/sys/kern [netbsd-6]: exec_elf.c kern_exec.c kern_exit.c
        src/sys/sys [netbsd-6]: exec.h spawn.h
        src/sys/uvm [netbsd-6]: uvm_extern.h uvm_glue.c uvm_map.c
        src/tests/lib/libc/gen/posix_spawn [netbsd-6]: t_fileactions.c

Log Message:
Pull up following revision(s) (requested by martin in ticket #175):
        sys/kern/kern_exit.c: revision 1.238
        tests/lib/libc/gen/posix_spawn/t_fileactions.c: revision 1.4
        tests/lib/libc/gen/posix_spawn/t_fileactions.c: revision 1.5
        sys/uvm/uvm_extern.h: revision 1.183
        lib/libc/gen/posix_spawn_fileactions.c: revision 1.2
        sys/kern/kern_exec.c: revision 1.348
        sys/kern/kern_exec.c: revision 1.349
        sys/compat/netbsd32/syscalls.master: revision 1.95
        sys/uvm/uvm_glue.c: revision 1.159
        sys/uvm/uvm_map.c: revision 1.317
        sys/compat/netbsd32/netbsd32.h: revision 1.95
        sys/kern/exec_elf.c: revision 1.38
        sys/sys/spawn.h: revision 1.2
        sys/sys/exec.h: revision 1.135
        sys/compat/netbsd32/netbsd32_execve.c: revision 1.34
Rework posix_spawn locking and memory management:
 - always provide a vmspace for the new proc, initially borrowing from proc0
   (this part fixes PR 46286)
 - increase parallelism between parent and child if arguments allow this,
   avoiding a potential deadlock on exec_lock
 - add a new flag for userland to request old (lockstepped) behaviour for
   better error reporting
 - adapt test cases to the previous two and add a new variant to test the
   diagnostics flag
 - fix a few memory (and lock) leaks
 - provide netbsd32 compat
Fix asynchronous posix_spawn child exit status (and test for it).


To generate a diff of this commit:
cvs rdiff -u -r1.1 -r1.1.2.1 src/lib/libc/gen/posix_spawn_fileactions.c
cvs rdiff -u -r1.92 -r1.92.2.1 src/sys/compat/netbsd32/netbsd32.h
cvs rdiff -u -r1.33 -r1.33.2.1 src/sys/compat/netbsd32/netbsd32_execve.c
cvs rdiff -u -r1.91 -r1.91.2.1 src/sys/compat/netbsd32/syscalls.master
cvs rdiff -u -r1.37 -r1.37.2.1 src/sys/kern/exec_elf.c
cvs rdiff -u -r1.339.2.3 -r1.339.2.4 src/sys/kern/kern_exec.c
cvs rdiff -u -r1.236 -r1.236.2.1 src/sys/kern/kern_exit.c
cvs rdiff -u -r1.134 -r1.134.2.1 src/sys/sys/exec.h
cvs rdiff -u -r1.1 -r1.1.2.1 src/sys/sys/spawn.h
cvs rdiff -u -r1.181 -r1.181.2.1 src/sys/uvm/uvm_extern.h
cvs rdiff -u -r1.156.2.2 -r1.156.2.3 src/sys/uvm/uvm_glue.c
cvs rdiff -u -r1.313.2.1 -r1.313.2.2 src/sys/uvm/uvm_map.c
cvs rdiff -u -r1.2.2.1 -r1.2.2.2 \
    src/tests/lib/libc/gen/posix_spawn/t_fileactions.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.