upgrade(tracer): Support & use libdatadog's library_config crate

[BaptisteFoy]

Summary of changes

tbd

Reason for change

tbd

Implementation details

The core of the logic is in shared/library_config.cpp. It imports libdatadog's code to:

• Define a library_config crate object
• Retrieve configurations from it

Then it is called in the Native Profiler's Configuration.cpp to be applied in the profiler's Configuration object

It is also embedded in the native's tracer interop.cpp so it can be called as a new configuration layer in the managed tracer.

Test coverage

tbd

Other details

• Base branch is [Profiler/Crashtracker] Bump libdatadog 15 #6589 but up-to-date with master; to only display changes that are relevant.
• Windows changes aren't supported yet, but will be in another PR:
  • The library-config crate is not included in libdatadog 15.0.0 and that is an error. We'll need to fix it in another libdatadog PR.
  • There are issues importing libdatadog in Windows's Datadog.Trace altogether... I tried to follow [Profiler] Use Vcpkg download and install native dependencies (libdatadog) #6388 but as I don't have a Windows machine to test it's pretty much trial and error. For now I think I'm missing the SetupVcpkg build step.
• There are issues around the required GLIBC version for this change. I wonder if it's my changes or the libdatadog changes; I need to investigate.

TODO:

• Update ShouldRewriteProfilerMaps to use the library-config methods so we can load the profiler natively?
• When released, use the newer libdatadog version
• Fix GLIBC issues
• Fix Windows
• Fix MacOS

[github-actions]

Snapshots difference summary

The following differences have been observed in committed snapshots. It is meant to help the reviewer.
The diff is simplistic, so please check some files anyway while we improve it.

49 occurrences of :

+        "exceptionHash": "ScrubbedValue",
+        "exceptionId": "ScrubbedValue",
+        "frameIndex": "ScrubbedValue",

1 occurrences of :

-            "value": "'3','32.38','Vins et alcools Chevalier','John',",
+            "value": "'3','32','Vins et alcools Chevalier','John',",
[...]
-            "value": "'Reims','51100','France')",
-            "source": 0
-          },
-          {
-            "value": ";\nSELECT OrderID FROM Orders ORDER BY OrderID DESC LIMIT 1;"
+            "value": "'Reims','51100','France');\nSELECT OrderID FROM Orders ORDER BY OrderID DESC LIMIT 1;"

15 occurrences of :

+      _dd.appsec.user.collection_mode: sdk

1 occurrences of :

+      appsec.events.users.login.success.usr.login: my-id,

1 occurrences of :

+      appsec.events.users.login.failure.usr.login: my-id,

14 occurrences of :

+      _dd.appsec.user.collection_mode: sdk,

6 occurrences of :

+      _dd.appsec.fp.http.header: hdr-0000000100-3626b5f8-2-da57b738,
+      _dd.appsec.fp.http.network: net-1-1000000000,
+      _dd.appsec.fp.session: ssn-<fingerprint>,

[datadog-ddstaging]

Datadog Report

Branch report: baptiste.foy/FA/library_config
Commit report: 6f06f3d
Test service: dd-trace-dotnet

❌ 11804 Failed (9 Known Flaky), 87209 Passed, 576 Skipped, 1h 24m 30.77s Total Time

❌ Failed Tests (11804)

This report shows up to 5 failed tests.

• UseTracerServiceName - Datadog.Profiler.IntegrationTests.ApplicationInfo.ApplicationInfoTest - Details

  Expand for error

   Expected infos.Last() to be equal to 
   {
       Item1 = "BuggyBitsService", 
       Item2 = "BuggyBitsEnv", 
       Item3 = "BuggyBitsVersion"
   }, but found 
   {
       Item1 = "Samples.BuggyBi", 
       Item2 = "Unspecified-Environment", 
       Item3 = "Unspecified-Version"
   ...
  

• UseTracerServiceName - Datadog.Profiler.IntegrationTests.ApplicationInfo.ApplicationInfoTest - Details

  Expand for error

   Expected infos.Last() to be equal to 
   {
       Item1 = "BuggyBitsService", 
       Item2 = "BuggyBitsEnv", 
       Item3 = "BuggyBitsVersion"
   }, but found 
   {
       Item1 = "Samples.BuggyBi", 
       Item2 = "Unspecified-Environment", 
       Item3 = "Unspecified-Version"
   ...
  

• UseTracerServiceName - Datadog.Profiler.IntegrationTests.ApplicationInfo.ApplicationInfoTest - Details

  Expand for error

   Expected infos.Last() to be equal to 
   {
       Item1 = "BuggyBitsService", 
       Item2 = "BuggyBitsEnv", 
       Item3 = "BuggyBitsVersion"
   }, but found 
   {
       Item1 = "Samples.BuggyBi", 
       Item2 = "Unspecified-Environment", 
       Item3 = "Unspecified-Version"
   ...
  

• UseTracerServiceName - Datadog.Profiler.IntegrationTests.ApplicationInfo.ApplicationInfoTest - Details

  Expand for error

   Expected infos.Last() to be equal to 
   {
       Item1 = "BuggyBitsService", 
       Item2 = "BuggyBitsEnv", 
       Item3 = "BuggyBitsVersion"
   }, but found 
   {
       Item1 = "Samples.BuggyBi", 
       Item2 = "Unspecified-Environment", 
       Item3 = "Unspecified-Version"
   ...
  

• UseTracerServiceName - Datadog.Profiler.IntegrationTests.ApplicationInfo.ApplicationInfoTest - Details

  Expand for error

   Expected infos.Last() to be equal to 
   {
       Item1 = "BuggyBitsService", 
       Item2 = "BuggyBitsEnv", 
       Item3 = "BuggyBitsVersion"
   }, but found 
   {
       Item1 = "Samples.BuggyBi", 
       Item2 = "Unspecified-Environment", 
       Item3 = "Unspecified-Version"
   ...