user: Restore debug usage message for '-d ?' in user mode emulation

[qemu.git] / m68k-semi.c

diff --git a/m68k-semi.c b/m68k-semi.c
index 48e3bd38be6a290c737e6c55f4376b9283b4f857..7fde10e8f36254685058e153c93a39c4d4a28a94 100644 (file)
--- a/m68k-semi.c
+++ b/m68k-semi.c
@@ -33,10 +33,10 @@
 #define SEMIHOSTING_HEAP_SIZE (128 * 1024 * 1024)
 #else
 #include "qemu-common.h"
-#include "sysemu.h"
 #include "gdbstub.h"
 #include "softmmu-semi.h"
 #endif
+#include "sysemu.h"
 
 #define HOSTED_EXIT  0
 #define HOSTED_INIT_SIM 1
@@ -172,6 +172,7 @@ void do_m68k_semihosting(CPUM68KState *env, int nr)
     args = env->dregs[1];
     switch (nr) {
     case HOSTED_EXIT:
+        gdb_exit(env, env->dregs[0]);
         exit(env->dregs[0]);
     case HOSTED_OPEN:
         if (use_gdb_syscalls()) {
@@ -369,7 +370,7 @@ void do_m68k_semihosting(CPUM68KState *env, int nr)
         TaskState *ts = env->opaque;
         /* Allocate the heap using sbrk.  */
         if (!ts->heap_limit) {
-            long ret;
+            abi_ulong ret;
             uint32_t size;
             uint32_t base;
 
@@ -378,8 +379,9 @@ void do_m68k_semihosting(CPUM68KState *env, int nr)
             /* Try a big heap, and reduce the size if that fails.  */
             for (;;) {
                 ret = do_brk(base + size);
-                if (ret != -1)
+                if (ret >= (base + size)) {
                     break;
+                }
                 size >>= 1;
             }
             ts->heap_limit = base + size;