Fix the slashes when setting the ZapBBInstrDir (#19858)

In OpenMethodProfileDataLogFile, we try to set the directory and path for the .ibc files using windows slashes (\). This causes this code to fail on Linux, which uses forward slashes. This is particularly a problem when setting COMPlus_ZapBBInstrDir, which takes that environment variable and attempts to find the name of the file using wcsrchr(assemblyPath, '\'). This causes a crash on linux when collecting IBC counts. The fix is to ifdef it for linux to use the correct path separator.

This change also includes a fix to change the code for checking if IbcTuning is set to use == instead of -eq which was causing a failure in the build that was ignored.

1 files changed, 1 insertions, 1 deletions

diff --git a/build.sh b/build.sh
index 6c40251839..f49106330c 100755
--- a/build.sh
+++ b/build.sh
@@ -454,7 +454,7 @@ build_CoreLib()
 
     # Invoke MSBuild
     __ExtraBuildArgs=""
-    if [[ "$__IbcTuning" -eq "" ]]; then
+    if [[ "$__IbcTuning" == "" ]]; then
         __ExtraBuildArgs="$__ExtraBuildArgs -OptimizationDataDir=\"$__PackagesDir/optimization.$__BuildOS-$__BuildArch.IBC.CoreCLR/$__IbcOptDataVersion/data/\""
         __ExtraBuildArgs="$__ExtraBuildArgs -EnableProfileGuidedOptimization=true"
     fi