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gdb: make inferior_list use intrusive_list

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Change inferior_list, the global list of inferiors, to use
intrusive_list.  I think most other changes are somewhat obvious
fallouts from this change.

There is a small change in behavior in scoped_mock_context.  Before this
patch, constructing a scoped_mock_context would replace the whole
inferior list with only the new mock inferior.  Tests using two
scoped_mock_contexts therefore needed to manually link the two inferiors
together, as the second scoped_mock_context would bump the first mock
inferior from the thread list.  With this patch, a scoped_mock_context
adds its mock inferior to the inferior list on construction, and removes
it on destruction.  This means that tests run with mock inferiors in the
inferior list in addition to any pre-existing inferiors (there is always
at least one).  There is no possible pid clash problem, since each
scoped mock inferior uses its own process target, and pids are per
process target.

Co-Authored-By: Simon Marchi <simon.marchi@efficios.com>
Change-Id: I7eb6a8f867d4dcf8b8cd2dcffd118f7270756018
This commit is contained in:
Pedro Alves 2020-06-14 20:57:04 +01:00 • committed by Simon Marchi
parent bf80931081
commit 08bdefb58b
10 changed files with 104 additions and 117 deletions
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gdb/regcache.c
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@ -2038,7 +2038,6 @@ regcache_thread_ptid_changed ()
/* Prepare two targets with one thread each, with the same ptid. */
scoped_mock_context<test_target_ops> target1 (arch);
scoped_mock_context<test_target_ops> target2 (arch);
target2.mock_inferior.next = &target1.mock_inferior;
ptid_t old_ptid (111, 222);
ptid_t new_ptid (111, 333);