lib: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remov

lib: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/
Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/
Remove /\n+#if.*\n#endif.*\n+/
Remove /^#if.*\n#endif.*\n/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/

Sponsored by: Netflix

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Remove $FreeBSD$: one-line .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

Re-enable proc_test:symbol_lookup after r360979.

PR: 244732
MFC after: 2 weeks
Sponsored by: The FreeBSD Foundation

Temporarily skip 2 failing tests after llvm10 import

PR: 244732
Sponsored by: The FreeBSD Foundation

MFH @ r337607, in preparation for boarding

Detach from the child process before completing the test.

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

Add an envp argument to proc_create().

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.

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

Merge ^/head r325999 through r326131.

Refine symtab sorting in libproc.

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

Refine symtab sorting in libproc.

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.

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Merge ^/head r309519 through r309757.

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

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

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

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.

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Merge from head

Enable libproc symbol_lookup tests on arm64

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

PR: 202305
Sponsored by: The FreeBSD Foundation

Merge from HEAD

On arm64 disable three tests that hang or panic

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,

On arm64 disable three tests that hang or panic

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

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Merge sync of head

Merge from HEAD

Merge ^/head r277327 through r277718.

Ensure that we don't try to demangle a symbol name if we failed to look
up the symbol. Add a test to exercise this code path.

Reviewed by: adrian

Merge from head@274682

Reintegrate head@r273095

Sponsored by: The FreeBSD Foundation

Merge HEAD@r272944.

IFC @r272887

Sync to HEAD@r272516.