arch/posix: make posix_fuzz_buf const
The original buffer is const as well and we're not allowed to modify it.
Signed-off-by: Michael Zimmermann <sigmaepsilon92@gmail.com>
diff --git a/boards/posix/native_posix/main.c b/boards/posix/native_posix/main.c
index 86c7937..c905305 100644
--- a/boards/posix/native_posix/main.c
+++ b/boards/posix/native_posix/main.c
@@ -127,7 +127,7 @@
* "long enough" to handle the event and reach a quiescent state
* again)
*/
-uint8_t *posix_fuzz_buf;
+const uint8_t *posix_fuzz_buf;
size_t posix_fuzz_sz;
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t sz)
@@ -142,7 +142,7 @@
/* Provide the fuzz data to Zephyr as an interrupt, with
* "DMA-like" data placed into posix_fuzz_buf/sz
*/
- posix_fuzz_buf = (void *)data;
+ posix_fuzz_buf = data;
posix_fuzz_sz = sz;
hw_irq_ctrl_set_irq(CONFIG_ARCH_POSIX_FUZZ_IRQ);
diff --git a/samples/subsys/debug/fuzz/src/main.c b/samples/subsys/debug/fuzz/src/main.c
index 3937e87..ae486e9 100644
--- a/samples/subsys/debug/fuzz/src/main.c
+++ b/samples/subsys/debug/fuzz/src/main.c
@@ -23,21 +23,21 @@
#define LASTKEY (ARRAY_SIZE(key) - 1)
-#define GEN_CHECK(cur, nxt) \
- void check##nxt(uint8_t *data, size_t sz); \
- void __attribute__((noinline)) check##cur(uint8_t *data, size_t sz) \
- { \
- if (cur < sz && data[cur] == key[cur]) { \
- if (!found[cur]) { \
- printk("#\n# Found key %d\n#\n", cur); \
- found[cur] = true; \
- } \
- if (cur == LASTKEY) { \
- *global_null_ptr = 0; /* boom! */ \
- } else { \
- check##nxt(data, sz); \
- } \
- } \
+#define GEN_CHECK(cur, nxt) \
+ void check##nxt(const uint8_t *data, size_t sz); \
+ void __attribute__((noinline)) check##cur(const uint8_t *data, size_t sz) \
+ { \
+ if (cur < sz && data[cur] == key[cur]) { \
+ if (!found[cur]) { \
+ printk("#\n# Found key %d\n#\n", cur); \
+ found[cur] = true; \
+ } \
+ if (cur == LASTKEY) { \
+ *global_null_ptr = 0; /* boom! */ \
+ } else { \
+ check##nxt(data, sz); \
+ } \
+ } \
}
GEN_CHECK(0, 1)
@@ -49,7 +49,7 @@
GEN_CHECK(6, 0)
/* Fuzz input received from LLVM via "interrupt" */
-extern uint8_t *posix_fuzz_buf;
+extern const uint8_t *posix_fuzz_buf;
extern size_t posix_fuzz_sz;
K_SEM_DEFINE(fuzz_sem, 0, K_SEM_MAX_LIMIT);
