add process.name attribute

[braydonk]

Fixes #1736

Changes

This PR adds a new attribute process.name that uses the description that used to apply to process.executable.name. The process.executable.name attribute's description is adjusted such that the value of the attribute will reliably contain the executable name.

Merge requirement checklist

• CONTRIBUTING.md guidelines followed.
• Change log entry added, according to the guidelines in When to add a changelog entry.
  • If your PR does not need a change log, start the PR title with [chore]
• [N/A] schema-next.yaml updated with changes to existing conventions.

[christos68k]

Thanks!

[christos68k]

Suggested change

	to the `Name` in `proc/[pid]/status`. On Windows, can be set to the
	to the value in `/proc/[pid]/comm` or to the (equivalent)
	`Name` in `/proc/[pid]/status`. On Windows, can be set to the

We can also use /proc/[pid]/comm which requires no parsing, unlike extracting Name out of /proc/[pid]/status. The values should be equivalent.

Also see:

• proc_pid_comm(5)
• prod_pid_status(5)

[braydonk]

What do you think about suggesting both since they're the same anyway? For example, in the hostmetricsreceiver we'll already have parsed /proc/[pid]/status for other information, so just getting the name from that is fine in our case, but in other cases people might prefer to just get /proc/[pid]/comm.

[braydonk]

Done in 5a679fd

[christos68k]

Suggested change

	suggesting use of the `Name` field from `/proc/[pid]/status` on Linux. `process.executable.name`
	suggesting use of `/proc/[pid]/comm` or the equivalent `Name` field
	from `/proc/[pid]/status` on Linux. `process.executable.name`

[braydonk]

Done in 5a679fd

[lmolkova]

nit: can or SHOULD ?

[lmolkova]

would it be possible to have an example that's different between process.name and process.executable.name ?

[lmolkova]

It seems process.name and process.executable.name are always the same on windows - is it the case?

In the spirit of T-shaped API, do you think it could be one of these linux-specific things? I.e. process.linux.exe|exectuable.name ?