Add /allpdata linker flag for all ebpf kernel driver component functions to facilitate fbt like functionality

[abeltrano]

Description

• Add /allpdata linker flag for all kernel drivers to enable dtrace function boundary tracing (fbt) for all functions.
• Disable incremental linking for EbpfCore_Usersim project since this conflicts with /allpdata.
• Resolve Add ability to trace all functions in eBPF kernel drivers #3856.

Note: fbt instrumentation uses unwind information from the pdata image section to get information about function prologue and epilogues; this is sometime unavailable for leaf functions not calling any imported API since they may not have unwind information, hence, /allpdata forces this information to be generated for all functions.

Testing

• Validated fbt probes for ebfcore are enumerated using dtrace (eg. dtrace -ln "fbt:ebpfcore::").
• Compared change in image size to baseline, confirming no change in release builds:

Image	Baseline Size (bytes)	/allpdata Size (bytes)	Change (bytes)
EbpfCore.sys
Debug	623,568	624,624	+1,056
Release	302,328	302,328	0
NativeOnly	282,184	282,184	0
netebpfext.sys
Debug	240,824	241,336	+512
Release	138,584	138,584	0
NativeOnly	138,584	138,584	0

Documentation

• None

Installation

• None

[dthaler]

Per https://github.com/microsoft/ebpf-for-windows/blob/main/CONTRIBUTING.md#contributing-code, please also file an issue that this is addressing so it can be discussed and triaged in the weekly triage meeting. Thanks!

[abeltrano]

Per https://github.com/microsoft/ebpf-for-windows/blob/main/CONTRIBUTING.md#contributing-code, please also file an issue that this is addressing so it can be discussed and triaged in the weekly triage meeting. Thanks!

#3856 created, thanks.