* [Bug bpf/23478] New: bpf: multi-key associative arrays
@ 2018-08-01 19:04 me at serhei dot io
2019-05-28 13:51 ` [Bug bpf/23478] " wcohen at redhat dot com
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: me at serhei dot io @ 2018-08-01 19:04 UTC (permalink / raw)
To: systemtap
https://sourceware.org/bugzilla/show_bug.cgi?id=23478
Bug ID: 23478
Summary: bpf: multi-key associative arrays
Product: systemtap
Version: unspecified
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: bpf
Assignee: systemtap at sourceware dot org
Reporter: me at serhei dot io
Target Milestone: ---
From the 'language features' brainstorm:
# More complex structures: multi-key associative arrays
It's theoretically possible to have a large struct as the key to a hash map.
Thus, a key could literally be a structure with 2 (or more) embedded strings.
It seemed to work fine when I used a 128-byte map key size, so two 64-byte
string keys should be doable at the very least.
--
You are receiving this mail because:
You are the assignee for the bug.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug bpf/23478] bpf: multi-key associative arrays
2018-08-01 19:04 [Bug bpf/23478] New: bpf: multi-key associative arrays me at serhei dot io
@ 2019-05-28 13:51 ` wcohen at redhat dot com
2019-08-20 20:49 ` wcohen at redhat dot com
2021-08-30 15:21 ` me at serhei dot io
2 siblings, 0 replies; 4+ messages in thread
From: wcohen at redhat dot com @ 2019-05-28 13:51 UTC (permalink / raw)
To: systemtap
https://sourceware.org/bugzilla/show_bug.cgi?id=23478
William Cohen <wcohen at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |wcohen at redhat dot com
--- Comment #1 from William Cohen <wcohen at redhat dot com> ---
This would also be useful for the @entry support. A number of the systemtap
examples fail like in the following way:
TEST
PWD=/home/wcohen/systemtap_write/systemtap/testsuite/systemtap.examples/memory
meta taglines 'test_check: stap -p4 overcommit.stp' tag 'test_check' value
'stap -p4 overcommit.stp'
attempting command stap --bpf -p4 overcommit.stp
OUT semantic error: unhandled multi-dimensional array: identifier '$pages' at
overcommit.stp:6:40
source: execname(), pid(), @entry($pages))
^
Pass 4: compilation failed. [man error::pass4]
child process exited abnormally
RC 1
FAIL: systemtap.examples/memory/overcommit build
--
You are receiving this mail because:
You are the assignee for the bug.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug bpf/23478] bpf: multi-key associative arrays
2018-08-01 19:04 [Bug bpf/23478] New: bpf: multi-key associative arrays me at serhei dot io
2019-05-28 13:51 ` [Bug bpf/23478] " wcohen at redhat dot com
@ 2019-08-20 20:49 ` wcohen at redhat dot com
2021-08-30 15:21 ` me at serhei dot io
2 siblings, 0 replies; 4+ messages in thread
From: wcohen at redhat dot com @ 2019-08-20 20:49 UTC (permalink / raw)
To: systemtap
https://sourceware.org/bugzilla/show_bug.cgi?id=23478
William Cohen <wcohen at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2019-08-20
Ever confirmed|0 |1
--- Comment #2 from William Cohen <wcohen at redhat dot com> ---
There is a initial patch on
https://sourceware.org/git/gitweb.cgi?p=systemtap.git;a=shortlog;h=refs/heads/wcohen/pr23478
that allows use of multi-dimensional arrays with the exception of foreach
statements for multi-dimensional arrays.
--
You are receiving this mail because:
You are the assignee for the bug.
^ permalink raw reply [flat|nested] 4+ messages in thread
* [Bug bpf/23478] bpf: multi-key associative arrays
2018-08-01 19:04 [Bug bpf/23478] New: bpf: multi-key associative arrays me at serhei dot io
2019-05-28 13:51 ` [Bug bpf/23478] " wcohen at redhat dot com
2019-08-20 20:49 ` wcohen at redhat dot com
@ 2021-08-30 15:21 ` me at serhei dot io
2 siblings, 0 replies; 4+ messages in thread
From: me at serhei dot io @ 2021-08-30 15:21 UTC (permalink / raw)
To: systemtap
https://sourceware.org/bugzilla/show_bug.cgi?id=23478
--- Comment #3 from Serhei Makarov <me at serhei dot io> ---
Implemented support for foreach iterations in multi-key associative arrays.
--
You are receiving this mail because:
You are the assignee for the bug.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2021-08-30 15:21 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-08-01 19:04 [Bug bpf/23478] New: bpf: multi-key associative arrays me at serhei dot io
2019-05-28 13:51 ` [Bug bpf/23478] " wcohen at redhat dot com
2019-08-20 20:49 ` wcohen at redhat dot com
2021-08-30 15:21 ` me at serhei dot io
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).