aboutsummaryrefslogtreecommitdiff
path: root/include
diff options
context:
space:
mode:
authorAlexander Bulekov <alxndr@bu.edu>2020-10-23 11:07:34 -0400
committerThomas Huth <thuth@redhat.com>2020-10-26 09:53:53 +0100
commite7d3222e2e07e2a1a0aac979ef1fa5e8ef59f02c (patch)
tree6a7bcc1a5835fd09fec53a5de1b14c4638e54eb7 /include
parent20f5a3029386363357e6fa0c2e82b35ac4914d6a (diff)
downloadqemu-e7d3222e2e07e2a1a0aac979ef1fa5e8ef59f02c.zip
qemu-e7d3222e2e07e2a1a0aac979ef1fa5e8ef59f02c.tar.gz
qemu-e7d3222e2e07e2a1a0aac979ef1fa5e8ef59f02c.tar.bz2
fuzz: Declare DMA Read callback function
This patch declares the fuzz_dma_read_cb function and uses the preprocessor and linker(weak symbols) to handle these cases: When we build softmmu/all with --enable-fuzzing, there should be no strong symbol defined for fuzz_dma_read_cb, and we link against a weak stub function. When we build softmmu/fuzz with --enable-fuzzing, we link against the strong symbol in generic_fuzz.c When we build softmmu/all without --enable-fuzzing, fuzz_dma_read_cb is an empty, inlined function. As long as we don't call any other functions when building the arguments, there should be no overhead. Signed-off-by: Alexander Bulekov <alxndr@bu.edu> Reviewed-by: Darren Kenny <darren.kenny@oracle.com> Message-Id: <20201023150746.107063-6-alxndr@bu.edu> Signed-off-by: Thomas Huth <thuth@redhat.com>
Diffstat (limited to 'include')
-rw-r--r--include/exec/memory.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/exec/memory.h b/include/exec/memory.h
index 93d27bf..4aaf578 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -47,6 +47,14 @@ void fuzz_dma_read_cb(size_t addr,
size_t len,
MemoryRegion *mr,
bool is_write);
+#else
+static inline void fuzz_dma_read_cb(size_t addr,
+ size_t len,
+ MemoryRegion *mr,
+ bool is_write)
+{
+ /* Do Nothing */
+}
#endif
extern bool global_dirty_log;