commit 77d42fc7193fb3ffa9c6f2f9c6d4459493b8cff2
author Benoît Ganne <bganne@cisco.com> Mon Apr 20 09:52:39 2020 +0200
committer Florin Coras <florin.coras@gmail.com> Wed Apr 22 17:11:56 2020 +0000
tree 3af006b7028bf8acd8569d94df54c10d7f4e453d
parent 07bbaef593939e9d03ba131e03296587472514ce

svm: asan: fix asan support

 - restrict the unittests SVM address space to what is supported by ASan
 - mark SVM mmap()ed address space accessible for ASan
 - SVM shared memory heap scheme means some allocation can happen
   outside the current process. Lazily mark those accessible for ASan

Type: fix

Change-Id: I7c196c80b2a5297651d0afa54f1a8e478fcf59b1
Signed-off-by: Benoît Ganne <bganne@cisco.com>

src/svm/ssvm.c

diff --git a/src/svm/ssvm.c b/src/svm/ssvm.c
index 0305278..073bc0b 100644
--- a/src/svm/ssvm.c
+++ b/src/svm/ssvm.c
@@ -97,6 +97,7 @@
   close (ssvm_fd);
 
   sh = mapa.addr;
+  CLIB_MEM_UNPOISON (sh, sizeof (*sh));
   sh->master_pid = ssvm->my_pid;
   sh->ssvm_size = ssvm->ssvm_size;
   sh->ssvm_va = pointer_to_uword (sh);