GeezerVison

…n#151122)

When building with --enable-shared, the SystemTap/DTrace notes
live in libpython. Add detection logic to be used by readelf.

Force the C locale on readelf output.

(cherry picked from commit 3a08e93)

Create a new process group to run bpftrace commands, so it's possible
to kill also child processes on timeout.

(cherry picked from commit a064b32)

…ython#152039)

Run the generic DTrace/SystemTap commands in a new process group and
terminate the whole group on timeout.

This prevents a forked tracer child from keeping stdout/stderr pipes
open after the direct tracer process is killed.

(cherry picked from commit 1785f4b)

Report readelf command failures directly instead of later failing with
missing-probe assertions.

(cherry picked from commit d60a677)

Fail functional dtrace and SystemTap cases directly when the tracer exits
non-zero.

(cherry picked from commit 311e7e7)

Use shlex.join() when building tracer -c command strings
for avoiding issues with spaces.

(cherry picked from commit a159c68)

Generate SystemTap probe definitions targeting libpython for shared
builds and use centralized USDT probe object discovery for readelf
and BPFTrace.

(cherry picked from commit 298bef3)

…honGH-156424)

Prefix commands passed to stap -c with LD_LIBRARY_PATH via env, when
probes reside in libpython. This allows the interpreter to find
libpython when staprun does not preserve the loader path.

(cherry picked from commit faf4e52)

…on timeout (python#156753)

Send SIGTERM to the tracing process group before falling back to SIGKILL.

(cherry picked from commit 55ecc0a)

)

SystemTap may compile a kernel module during its usability check
(if no cached module is available). We need to allow a larger timeout
for that case.

(cherry picked from commit e1be613)