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-rw-r--r--arm-semi.c5
1 files changed, 3 insertions, 2 deletions
diff --git a/arm-semi.c b/arm-semi.c
index e9e6f8993f..5a62d03b36 100644
--- a/arm-semi.c
+++ b/arm-semi.c
@@ -440,15 +440,16 @@ uint32_t do_arm_semihosting(CPUState *env)
/* Some C libraries assume the heap immediately follows .bss, so
allocate it using sbrk. */
if (!ts->heap_limit) {
- long ret;
+ abi_ulong ret;
ts->heap_base = do_brk(0);
limit = ts->heap_base + ARM_ANGEL_HEAP_SIZE;
/* Try a big heap, and reduce the size if that fails. */
for (;;) {
ret = do_brk(limit);
- if (ret != -1)
+ if (ret >= limit) {
break;
+ }
limit = (ts->heap_base >> 1) + (limit >> 1);
}
ts->heap_limit = limit;