add tls flags to customlabels dep

Author: elsa

cmake/deps/customlabels.cmake

@@ -5,6 +5,21 @@ FetchContent_Declare(customlabels
   GIT_TAG  elsa/add-process-storage
 )
 
+if (CMAKE_SYSTEM_PROCESSOR STREQUAL "aarch64")
+  set(TLS_DIALECT desc)
+elseif (CMAKE_SYSTEM_PROCESSOR STREQUAL "x86_64" OR CMAKE_SYSTEM_PROCESSOR STREQUAL "AMD64")
+  set(TLS_DIALECT gnu2)
+else()
+  message(FATAL_ERROR "Only aarch64 and x86-64 are supported (found: ${CMAKE_SYSTEM_PROCESSOR})")
+endif()
+
+target_compile_options(dd_trace_cpp-shared PRIVATE
+ -g
+ -fPIC
+ -ftls-model=global-dynamic
+ -mtls-dialect=${TLS_DIALECT}
+)
+
 FetchContent_MakeAvailable(customlabels)
 
 add_library(customlabels SHARED