[Bug record/23454] New: thread number changes, when using rr record/replay

[kevin.mangold at siemens dot com]

https://sourceware.org/bugzilla/show_bug.cgi?id=23454

Bug ID: 23454
Summary: thread number changes, when using rr record/replay
Product: gdb
Version: HEAD
Status: UNCONFIRMED
Severity: enhancement
Priority: P2
Component: record
Assignee: unassigned at sourceware dot org
Reporter: kevin.mangold at siemens dot com
Target Milestone: ---

Created attachment 11154
--> https://sourceware.org/bugzilla/attachment.cgi?id=11154&action=edit
gdbthread.h and thread.c

When gdb is used with the rr record/replay tool, the thread number changes
everytime a thread creation gets re-executed.
For more information look at this rr issue:
https://github.com/mozilla/rr/issues/2229
I fixed this bug, by saving a map with corresponding thread id's to thread
numbers. When the thread id already existed, we are using the old thread
number, if not everything stays the same.
Normal using of gdb doesn't get affected, it only affects, when used with rr
(and maybe other record/replay debugger...)
I attach my changes in thread.c and gdbthread.h

[tromey at sourceware dot org]

https://sourceware.org/bugzilla/show_bug.cgi?id=23454

Tom Tromey <tromey at sourceware dot org> changed:

What |Removed |Added
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CC| |tromey at sourceware dot org

--- Comment #1 from Tom Tromey <tromey at sourceware dot org> ---
Hi. Thanks for the patch.
gdb patches should be sent to the gdb-patches list;
see the contribution checklist for details:
https://sourceware.org/gdb/wiki/ContributionChecklist