Remove TARGET_HOST macros (#2264)

Remove TARGET_HOST defines from the jerry-libc module and replace with compiler provided macros.

JerryScript-DCO-1.0-Signed-off-by: Istvan Miklos imiklos2@inf.u-szeged.hu

Author: Istvan Miklos

CMakeLists.txt

@@ -240,6 +240,7 @@ endif()
 # External compiler & linker flags
 if(DEFINED EXTERNAL_COMPILE_FLAGS)
   jerry_add_compile_flags(${EXTERNAL_COMPILE_FLAGS})
+  jerry_add_flags(CMAKE_ASM_FLAGS "${EXTERNAL_COMPILE_FLAGS}")
 endif()
 
 if(DEFINED EXTERNAL_LINKER_FLAGS)

jerry-libc/CMakeLists.txt

@@ -22,19 +22,6 @@ if(FEATURE_INIT_FINI)
   set(DEFINES_LIBC ${DEFINES_LIBC} ENABLE_INIT_FINI)
 endif()
 
-# Architecture-specific configuration
-if(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "x86_64")
-  set(DEFINES_LIBC ${DEFINES_LIBC} __TARGET_HOST_x64)
-elseif(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "armv7l")
-  set(DEFINES_LIBC ${DEFINES_LIBC} __TARGET_HOST_ARMv7 __TARGET_HOST_ARMv7_HARD_FLOAT)
-elseif(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "armv7l-el")
-  set(DEFINES_LIBC ${DEFINES_LIBC} __TARGET_HOST_ARMv7 __TARGET_HOST_ARMv7_SOFT_FLOAT)
-elseif(${CMAKE_SYSTEM_PROCESSOR} STREQUAL "i686")
-  set(DEFINES_LIBC ${DEFINES_LIBC} __TARGET_HOST_x86)
-else()
-  message(FATAL_ERROR "Machine architecture ${CMAKE_SYSTEM_PROCESSOR} isn't supported")
-endif()
-
 # Include directories
 set(INCLUDE_LIBC "${CMAKE_CURRENT_SOURCE_DIR}")
 

jerry-libc/arch/arm-v7.h

@@ -117,15 +117,15 @@
  *   store s16-s31 vfp registers to buffer, pointed with r0 register,
  *   and increase the register on size of stored data.
  */
-#ifdef __TARGET_HOST_ARMv7_HARD_FLOAT
+#if defined (__VFP_FP__) && !defined (__SOFTFP__)
 # define _STORE_VFP_S16_S31_IF_HARD_FLOAT \
    vstm r0!, {s16 - s31};
 # define _LOAD_VFP_S16_S31_IF_HARD_FLOAT \
    vldm r0!, {s16 - s31};
-#else /* !__TARGET_HOST_ARMv7_HARD_FLOAT */
+#else /* !__VFP_FP__ || __SOFTFP__ */
 # define _STORE_VFP_S16_S31_IF_HARD_FLOAT
 # define _LOAD_VFP_S16_S31_IF_HARD_FLOAT
-#endif /* __TARGET_HOST_ARMv7_HARD_FLOAT */
+#endif /* __VFP_FP__ && !__SOFTFP__ */
 
 /*
  * setjmp

jerry-libc/target/posix/jerry-asm.S

@@ -13,15 +13,15 @@
  * limitations under the License.
  */
 
-#if defined (__TARGET_HOST_x64)
+#if defined (__x86_64__)
 #include "arch/x86-64.h"
-#elif defined (__TARGET_HOST_x86)
+#elif defined (__i386__)
 #include "arch/x86-32.h"
-#elif defined (__TARGET_HOST_ARMv7)
+#elif defined (__ARM_ARCH_7A__)
 #include "arch/arm-v7.h"
-#else /* !__TARGET_HOST_x64 && !__TARGET_HOST_x86 && !__TARGET_HOST_ARMv7 */
+#else /* !__x86_64__ && !__i386__ && !__ARM_ARCH_7A__ */
 #error "Unsupported architecture"
-#endif /* __TARGET_HOST_x64 */
+#endif /* __x86_64__ */
 
 #if defined (__linux__)
 .macro func _name