src/lib/libproc/tests/proc_test.c, branch releng/12.2

MFC r360980:

2020-05-26T14:06:07+00:00

Re-enable proc_test:symbol_lookup after r360979.

PR:	244732

MFC r358887:

2020-05-07T20:27:32+00:00

Temporarily skip 2 failing tests after llvm10 import

PR:		244732
Sponsored by:	The FreeBSD Foundation

Detach from the child process before completing the test.

2018-07-27T20:34:15+00:00

Otherwise the child will receive SIGTRAP if the parent exits first.

Add an envp argument to proc_create().

2017-12-03T16:50:16+00:00

This is needed to support dtrace's -x setenv option.

MFC after:	2 weeks

Eliminate the last user of basename_r() in the base system.

2017-12-01T10:25:52+00:00

In this case it's fairly easy to make use of basename().

Refine symtab sorting in libproc.

2017-11-21T16:03:21+00:00

Add some rules to more closely match what illumos does when an address
resolves to multiple symbols:
- prefer non-local symbols
- prefer symbols with fewer leading underscores and no leading '$'

Add some regression tests to verify these rules.

libproc: Match prefixes when looking up mapped object by name.

2016-12-06T04:20:32+00:00

When looking up an object by name, allow prefix matches if no direct match
is found. This allows one to, for example, match libc entry probes with:

 # dtrace -n 'pid$target:libc.so::entry' -c ./foo

instead of requiring "libc.so.7" or a glob.

Also remove proc_obj2map() as it currently just duplicates the
functionality of proc_name2map(). It's supposed to take a Solaris
link-map ID as a paramter, but support for this isn't implemented and
isn't required to support DTrace's pid provider.

Enable libproc symbol_lookup tests on arm64

2015-08-31T20:30:06+00:00

This reverts part of r286863, as the kernel support required by these
tests was added in r287105.

PR:		202305
Sponsored by:	The FreeBSD Foundation

On arm64 disable three tests that hang or panic

2015-08-17T23:19:36+00:00

Each issue has a PR open to track. This workaround allows us to run the
tests to investigate the failures and avoid any new regressions.

PR:		202304, 202305, 202307
Reviewed by:	ngie
Sponsored by:	The FreeBSD Foundation
Differential Revision:	https://reviews.freebsd.org/D3378

Ensure that we don't try to demangle a symbol name if we failed to look

2015-01-25T00:34:43+00:00

up the symbol. Add a test to exercise this code path.

Reviewed by:	adrian