From b3ca09bd80d347c666322e82cd9216457d7a066c Mon Sep 17 00:00:00 2001
From: Anh <zenpoems@gmail.com>
Date: Thu, 26 Jul 2018 16:20:53 +0000
Subject: [PATCH] Move fake bitmap allocation
---
src/libzafl.cpp | 7 ++++++-
1 file changed, 6 insertions(+), 1 deletion(-)
diff --git a/src/libzafl.cpp b/src/libzafl.cpp
index a53ab52..376a15d 100644
--- a/src/libzafl.cpp
+++ b/src/libzafl.cpp
@@ -55,6 +55,7 @@ void __attribute__((constructor)) zafl_initAflForkServer();
static void zafl_setupSharedMemory()
{
zafl_prev_id = 0;
+ zafl_trace_bits = NULL;
char *shm_env_var = getenv(SHM_ENV_VAR);
if(!shm_env_var) {
@@ -76,11 +77,15 @@ void zafl_initAflForkServer()
if (!shared_memory_is_setup)
zafl_setupSharedMemory();
+ if (!zafl_trace_bits) {
+ zafl_trace_bits = (u8*)malloc(MAP_SIZE);
+ printf("no shmem detected: fake it: zafl_trace_bits = %p, malloc_size(%d)\n", zafl_trace_bits, MAP_SIZE);
+ }
+
int n = write(FORKSRV_FD+1, &__afl_temp_data,4);
if( n!=4 ) {
PRINT_ERROR("Error writting fork server -- faking global memory\n");
perror("zafl_initAflForkServer()");
- zafl_trace_bits = (u8*)malloc(MAP_SIZE);
printf("zafl_trace_bits = %p, FORKSVR_FD(%d)\n", zafl_trace_bits, FORKSRV_FD);
return;
}
--
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