ARM and ARMv7-M ELF support; STM32F4Discovery ELF loader test configuration

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5264 42af7a65-404d-4744-a932-0658087f49c3

examples/README.txt

@@ -333,8 +333,8 @@ examples/elf
      include the path to the genromfs executable.
 
   3. ELF size:  The ELF files in this example are, be default, quite large
-     because they include a lot of "build garbage".  You can greately reduce the
-     size of the ELF binaries are using the objcopy --strip-unneeded command to
+     because they include a lot of "build garbage".  You can greatly reduce the
+     size of the ELF binaries are using the 'objcopy --strip-unneeded' command to
      remove un-necessary information from the ELF files.
 
   4. Simulator.  You cannot use this example with the the NuttX simulator on

examples/elf/tests/longjmp/longjmp.c

@@ -74,6 +74,10 @@ static int leaf(int *some_arg)
   printf("leaf: Calling longjmp() with %d\n", some_local_variable);
 
   longjmp(env, some_local_variable);
+
+  /* We should not get here */
+
+  return -ERROR; 
 }
 
 static int function(int some_arg)

examples/elf/tests/signal/signal.c

@@ -93,7 +93,7 @@ void sigusr1_sighandler(int signo)
 void sigusr2_sigaction(int signo, siginfo_t *siginfo, void *arg)
 {
   printf("sigusr2_sigaction: Received SIGUSR2, signo=%d siginfo=%p arg=%p\n",
-	 signo, siginfo, arg);
+         signo, siginfo, arg);
 
 #ifdef HAVE_SIGQUEUE
   if (siginfo)
@@ -163,7 +163,7 @@ int main(int argc, char **argv)
   if (old_sigusr1_sighandler == SIG_ERR)
     {
       fprintf(stderr, "Failed to install SIGUSR1 handler, errno=%d\n",
-	      errno);
+              errno);
       exit(1);
     }
 
@@ -182,7 +182,7 @@ int main(int argc, char **argv)
   if (status != 0)
     {
       fprintf(stderr, "Failed to install SIGUSR2 handler, errno=%d\n",
-	      errno);
+              errno);
       exit(2);
     }
 
@@ -263,7 +263,7 @@ int main(int argc, char **argv)
   if (old_sigusr2_sighandler == SIG_ERR)
     {
       fprintf(stderr, "Failed to install SIGUSR2 handler, errno=%d\n",
-	      errno);
+              errno);
       exit(7);
     }
 
@@ -275,8 +275,8 @@ int main(int argc, char **argv)
   if ((void*)old_sigusr2_sighandler != (void*)sigusr2_sigaction)
     {
       fprintf(stderr,
-	      "Old SIGUSR2 signhanlder (%p) is not sigusr2_sigation (%p)\n",
-	      old_sigusr2_sighandler, sigusr2_sigaction);
+              "Old SIGUSR2 signhanlder (%p) is not sigusr2_sigation (%p)\n",
+              old_sigusr2_sighandler, sigusr2_sigaction);
       exit(8);
     }
 

examples/nxflat/tests/longjmp/longjmp.c

@@ -74,6 +74,10 @@ static int leaf(int *some_arg)
   printf("leaf: Calling longjmp() with %d\n", some_local_variable);
 
   longjmp(env, some_local_variable);
+
+  /* We should not get here */
+
+  return -ERROR; 
 }
 
 static int function(int some_arg)

examples/nxflat/tests/signal/signal.c

@@ -38,6 +38,7 @@
  ****************************************************************************/
 
 #include <sys/types.h>
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <signal.h>
@@ -93,7 +94,7 @@ void sigusr1_sighandler(int signo)
 void sigusr2_sigaction(int signo, siginfo_t *siginfo, void *arg)
 {
   printf("sigusr2_sigaction: Received SIGUSR2, signo=%d siginfo=%p arg=%p\n",
-	 signo, siginfo, arg);
+         signo, siginfo, arg);
 
 #ifdef HAVE_SIGQUEUE
   if (siginfo)
@@ -163,7 +164,7 @@ int main(int argc, char **argv)
   if (old_sigusr1_sighandler == SIG_ERR)
     {
       fprintf(stderr, "Failed to install SIGUSR1 handler, errno=%d\n",
-	      errno);
+              errno);
       exit(1);
     }
 
@@ -182,7 +183,7 @@ int main(int argc, char **argv)
   if (status != 0)
     {
       fprintf(stderr, "Failed to install SIGUSR2 handler, errno=%d\n",
-	      errno);
+              errno);
       exit(2);
     }
 
@@ -263,7 +264,7 @@ int main(int argc, char **argv)
   if (old_sigusr2_sighandler == SIG_ERR)
     {
       fprintf(stderr, "Failed to install SIGUSR2 handler, errno=%d\n",
-	      errno);
+              errno);
       exit(7);
     }
 
@@ -275,8 +276,8 @@ int main(int argc, char **argv)
   if ((void*)old_sigusr2_sighandler != (void*)sigusr2_sigaction)
     {
       fprintf(stderr,
-	      "Old SIGUSR2 signhanlder (%p) is not sigusr2_sigation (%p)\n",
-	      old_sigusr2_sighandler, sigusr2_sigaction);
+              "Old SIGUSR2 signhanlder (%p) is not sigusr2_sigation (%p)\n",
+              old_sigusr2_sighandler, sigusr2_sigaction);
       exit(8);
     }