cmake: Add check_arm32_assembly function

2023-05-12 10:38:50 +01:00
parent e5cf4bf3ff
commit ed4ba238e2
3 changed files with 22 additions and 1 deletions
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -107,7 +107,13 @@ set_property(CACHE SECP256K1_ASM PROPERTY STRINGS "AUTO" "OFF" "x86_64" "arm32")
 check_string_option_value(SECP256K1_ASM)
 if(SECP256K1_ASM STREQUAL "arm32")
  enable_language(ASM)
-  add_compile_definitions(USE_EXTERNAL_ASM=1)
+  include(CheckArm32Assembly)
+  check_arm32_assembly()
+  if(HAVE_ARM32_ASM)
+    add_compile_definitions(USE_EXTERNAL_ASM=1)
+  else()
+    message(FATAL_ERROR "ARM32 assembly optimization requested but not available.")
+  endif()
 elseif(SECP256K1_ASM)
  include(Check64bitAssembly)
  check_64bit_assembly()