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authorSverker Eriksson <[email protected]>2018-03-20 16:48:26 +0100
committerSverker Eriksson <[email protected]>2018-03-20 16:48:26 +0100
commit1ac8caa8d22f3767e84e7be749afbd5ed17a11b4 (patch)
tree63e0e6653e2dc0872a9c5a9a1b35246c80a4d8d9 /erts/emulator/hipe
parent2bdd0ba8f6046301778ea3673716d8df9fdd42fa (diff)
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erts: Fix some zero size sys_memcpy
Diffstat (limited to 'erts/emulator/hipe')
-rw-r--r--erts/emulator/hipe/hipe_mode_switch.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/erts/emulator/hipe/hipe_mode_switch.c b/erts/emulator/hipe/hipe_mode_switch.c
index 8b497c9970..f2befb07e3 100644
--- a/erts/emulator/hipe/hipe_mode_switch.c
+++ b/erts/emulator/hipe/hipe_mode_switch.c
@@ -662,7 +662,8 @@ void hipe_inc_nstack(Process *p)
Eterm *new_nstack = erts_alloc(ERTS_ALC_T_HIPE_STK, new_size*sizeof(Eterm));
unsigned used_size = p->hipe.nstend - p->hipe.nsp;
- sys_memcpy(new_nstack+new_size-used_size, p->hipe.nsp, used_size*sizeof(Eterm));
+ if (used_size)
+ sys_memcpy(new_nstack+new_size-used_size, p->hipe.nsp, used_size*sizeof(Eterm));
if (p->hipe.nstgraylim)
p->hipe.nstgraylim = new_nstack + new_size - (p->hipe.nstend - p->hipe.nstgraylim);
if (p->hipe.nstblacklim)