[STM32L432] link pb (RWX segment, _exit function)

Author: Mikaël BRIDAY

goil/templates/build/cmakelists_txt.goilTemplate

@@ -1,10 +1,10 @@
 #to compile the project:
-# mkdir _build
-# cd _build
+# mkdir build
+# cd build
 # cmake -D CMAKE_TOOLCHAIN_FILE=../% !PROJECT %/compiler.cmake ..
 # make
 # make flash
-cmake_minimum_required(VERSION 3.5)
+cmake_minimum_required(VERSION 3.10)
 
 # with this option, cmake will not try to compile a 
 # simple test program (that may fail for an embedded target)

goil/templates/linker/gnu_ld/cortex-m/armv7em/stm32l432/script.goilTemplate

@@ -185,7 +185,7 @@ SECTIONS {
 }
 
 SECTIONS {
-  .preinit_array     :
+  .preinit_array (READONLY)    :
   {
     PROVIDE_HIDDEN (__preinit_array_start = .);
     KEEP (*(.preinit_array*))
@@ -194,7 +194,7 @@ SECTIONS {
 }
 
 SECTIONS {
-  .init_array :
+  .init_array (READONLY) :
   {
     PROVIDE_HIDDEN (__init_array_start = .);
     KEEP (*(SORT(.init_array.*)))
@@ -204,7 +204,7 @@ SECTIONS {
 }
 
 SECTIONS {
-  .fini_array :
+  .fini_array (READONLY) :
   {
     PROVIDE_HIDDEN (__fini_array_start = .);
     KEEP (*(.fini_array*))

machines/cortex-m/armv7em/stm32l432/startup_stm32l432.c

@@ -38,7 +38,7 @@ extern int main(void);
 
 // The implementation for the exit routine, where for embedded
 // applications, a system reset is performed.
-extern void _exit(int);
+// extern void _exit(int);
 
 //*****************************************************************************
 
@@ -147,7 +147,8 @@ void __attribute__ ((section(".after_vectors"))) tpl_continue_reset_handler(void
   // On test platforms, like semihosting, this can be used to inform
   // the host on the test result.
   // On embedded platforms, usually reset the processor.
-  _exit(r);
+  // _exit(r);
+  while(1);
 
 }