Pass semihosting exit code back to system.
In order to run unit tests under semihosting, it is necessary to pass the
application exit code back to the system.
ARM defines only the code to be used for non-error application exit
(ADP_Stopped_ApplicationExit), all other codes should return non-zero
exit codes.
This patch checks if the application code passed via TARGET_SYS_EXIT is
ADP_Stopped_ApplicationExit, and return 0, otherwise return 1.
Signed-off-by: Liviu Ionescu <ilg@livius.net>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
diff --git a/target-arm/arm-semi.c b/target-arm/arm-semi.c
index ebb5235..a8b83e6 100644
--- a/target-arm/arm-semi.c
+++ b/target-arm/arm-semi.c
@@ -58,6 +58,10 @@
#define TARGET_SYS_HEAPINFO 0x16
#define TARGET_SYS_EXIT 0x18
+/* ADP_Stopped_ApplicationExit is used for exit(0),
+ * anything else is implemented as exit(1) */
+#define ADP_Stopped_ApplicationExit (0x20026)
+
#ifndef O_BINARY
#define O_BINARY 0
#endif
@@ -551,8 +555,11 @@
return 0;
}
case TARGET_SYS_EXIT:
- gdb_exit(env, 0);
- exit(0);
+ /* ARM specifies only Stopped_ApplicationExit as normal
+ * exit, everything else is considered an error */
+ ret = (args == ADP_Stopped_ApplicationExit) ? 0 : 1;
+ gdb_exit(env, ret);
+ exit(ret);
default:
fprintf(stderr, "qemu: Unsupported SemiHosting SWI 0x%02x\n", nr);
cpu_dump_state(cs, stderr, fprintf, 0);
