arch/armv8-r: Add support for disabling signals

Add support for disabling signal functionality.
When signals are disabled, arm_schedulesigaction.c and arm_sigdeliver.c will not be built.

Signed-off-by: Chengdong Wang wangchengdong@lixiang.com

Author: wangchdo

arch/arm/src/armv8-r/CMakeLists.txt

@@ -41,14 +41,16 @@ list(
   arm_gicv3.c
   arm_initialstate.c
   arm_prefetchabort.c
-  arm_schedulesigaction.c
-  arm_sigdeliver.c
   arm_syscall.c
   arm_tcbinfo.c
   arm_undefinedinsn.c
   arm_perf.c
   cp15_cacheops.c)
 
+if(NOT CONFIG_DISABLE_SIGNALS)
+  list(APPEND SRCS arm_schedulesigaction.c arm_sigdeliver.c)
+endif()
+
 if(CONFIG_ARCH_FPU)
   list(APPEND SRCS arm_fpucmp.c arm_fpuconfig.S)
 endif()

arch/arm/src/armv8-r/Make.defs

@@ -34,7 +34,6 @@ HEAD_ASRC += arm_vectortab.S
 CMN_CSRCS += arm_timer.c arm_cache.c arm_cpuinfo.c arm_dataabort.c
 CMN_CSRCS += arm_doirq.c arm_gicv3.c
 CMN_CSRCS += arm_initialstate.c arm_prefetchabort.c
-CMN_CSRCS += arm_schedulesigaction.c arm_sigdeliver.c
 CMN_CSRCS += arm_syscall.c arm_tcbinfo.c arm_undefinedinsn.c
 CMN_CSRCS += arm_perf.c cp15_cacheops.c
 
@@ -46,6 +45,10 @@ CMN_ASRCS += arm_head.S arm_vectors.S arm_saveusercontext.S
 #   CMN_CSRCS += arm_mpu.c
 # endif
 
+ifneq ($(CONFIG_DISABLE_SIGNALS),y)
+  CMN_CSRCS +=arm_schedulesigaction.c arm_sigdeliver.c
+endif
+
 ifeq ($(CONFIG_ARCH_FPU),y)
   CMN_CSRCS += arm_fpucmp.c
   CMN_ASRCS += arm_fpuconfig.S