Hi,
> In a cross-platform process utility tool the question came up how to
decide if a process is 64-bit.
>
> https://github.com/giampaolo/psutil/issues/1102
>
> What's the best answer for NetBSD?
If I understand correctly, you want psutil-based scripts -- which seem to
be written in Python -- t
> > In addition to amd64/i386, it occurs to me that sparc64/sparc32 is
> > another case; IIRC it's possible to take sparc64 hardware and build a
> > (special? not sure) kernel that runs sparc32 userland. I've never
> > tried it; I don't know whether sparc32 and sparc64 are as freely
> > mixable at
> That's why I asked "what does 'is 64-bit' mean". Your previous reference to$
Any particular reason for the paragraph-length line?
Manually repairing it (and trimming to the part I'm replying to),
> [...] the question "does this program use 64 bit addresses". There
> are at least two other po
On Fri, 8 Sep 2017, Mouse wrote:
> >> ([...] on most "64-bit" ports, a real question on amd64 (and others,
> >> if any) which support 32-bit userland.)
> > actually -- our mips64 ports largely use N32 userland, which is 64
> > bit registers and 32 bit addresses.
>
> Oh! Thank you. Yes, that's a
>> ([...] on most "64-bit" ports, a real question on amd64 (and others,
>> if any) which support 32-bit userland.)
> actually -- our mips64 ports largely use N32 userland, which is 64
> bit registers and 32 bit addresses.
Oh! Thank you. Yes, that's an interesting case.
In addition to amd64/i386
> On Sep 8, 2017, at 4:00 PM, matthew green wrote:
>
>> Is the answer "it's using an ISA with 64-bit registers and addresses"?
>> This actually can be broken down into the "registers" and "addresses"
>> portion, but, in practice, the two tend to go together. (Always true
>> on most "64-bit" por
> Is the answer "it's using an ISA with 64-bit registers and addresses"?
> This actually can be broken down into the "registers" and "addresses"
> portion, but, in practice, the two tend to go together. (Always true
> on most "64-bit" ports, a real question on amd64 (and others, if any)
> which su
> In a cross-platform process utility tool the question came up how to
> decide if a process is 64-bit.
>
> https://github.com/giampaolo/psutil/issues/1102
>
> What's the best answer for NetBSD?
in C:
internally, just check #ifdef _LP64.
externally, kvm_getprocs() with KERN_PROC_PID.
in other
> On Sep 8, 2017, at 6:55 AM, Thomas Klausner wrote:
>
> Hi!
>
> In a cross-platform process utility tool the question came up how to
> decide if a process is 64-bit.
>
> https://github.com/giampaolo/psutil/issues/1102
I wonder: "in what sense"?
1. Capable of doing arithmetic on 64 bit value
On 08.09.2017 04:32, Mateusz Guzik wrote:
> The fork1 routine can wait for the child to exit (if vforked) and/or
> return the pointer to the child.
>
> Neither case guarantees the safety of said operation. The key is that
> the parent can be ignoring SIGCHLD, which results in autoreaping the
> chi
In mount_checkdirs you can find a loop:
mutex_enter(proc_lock);
PROCLIST_FOREACH(p, &allproc) {
if ((cwdi = p->p_cwdi) == NULL)
continue;
if (cwdi->cwdi_cdir != olddp &&
cwdi->cwdi_rdir != olddp)
continue;
retry = true;
re
On Fri, Sep 08, 2017 at 01:13:44PM +, Christos Zoulas wrote:
> If you can attach to it with ktrace, the first record is an emul record.
> If you have procfs cat /proc//emul
Yeah, but it would be interesting to see in something like kprocinfo2
(easily fetchable via sysctl or the kvm wrapper).
In article <20170908115647.ga29...@mail.duskware.de>,
Martin Husemann wrote:
>On Fri, Sep 08, 2017 at 12:55:37PM +0200, Thomas Klausner wrote:
>> What's the best answer for NetBSD?
>
>If the kernel is 64bit:
>kvm_getproc2() and check the process flags for P_32.
>
>If not: all of them ;-}
>
>I wou
>> First, I have to ask: what does it mean to say that a particular
>> process is - or isn't - 64-bit?
> Many 64-bit ports support running 32-bit applications
> (compat_netbsd32, compat_linux32).
Exactly.
Is the answer "it can do arithmetic on 64-bit values"? (Most - all, I
think - NetBSD ports
On Fri, Sep 08, 2017 at 07:38:24AM -0400, Mouse wrote:
> First, I have to ask: what does it mean to say that a particular
> process is - or isn't - 64-bit?
Many 64-bit ports support running 32-bit applications
(compat_netbsd32, compat_linux32).
Thomas
On Fri, Sep 08, 2017 at 12:55:37PM +0200, Thomas Klausner wrote:
> What's the best answer for NetBSD?
If the kernel is 64bit:
kvm_getproc2() and check the process flags for P_32.
If not: all of them ;-}
I would find it more interesting to answer "what is the emulation it runs
under", so you have
At the risk of making people angry, this answer works for linux and netbsd:
$ file -L /proc/self/exe
/proc/self/exe: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV),
dynamically linked, interpreter /usr/libexec/ld.elf_so, for NetBSD 8.99.2, not
stripped
> In a cross-platform process utility tool the question came up how to
> decide if a process is 64-bit.
First, I have to ask: what does it mean to say that a particular
process is - or isn't - 64-bit?
I started to write that on most of the 64-bit-supporting ports there
isn't even any question, bu
Hi!
In a cross-platform process utility tool the question came up how to
decide if a process is 64-bit.
https://github.com/giampaolo/psutil/issues/1102
What's the best answer for NetBSD?
Thomas
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