You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
92 lines
1.9 KiB
92 lines
1.9 KiB
/*
|
|
* Copyright 2021 Google LLC
|
|
* SPDX-License-Identifier: MIT
|
|
*/
|
|
|
|
#include <stdbool.h>
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
|
|
#include "os/os_misc.h"
|
|
#include "virglrenderer.h"
|
|
#include "virglrenderer_hw.h"
|
|
|
|
int
|
|
LLVMFuzzerTestOneInput(const uint8_t *data, size_t size);
|
|
|
|
struct fuzz_renderer {
|
|
bool initialized;
|
|
};
|
|
|
|
static void
|
|
fuzz_atexit_callback(void)
|
|
{
|
|
virgl_renderer_cleanup(NULL);
|
|
}
|
|
|
|
static void
|
|
fuzz_debug_callback(UNUSED const char *fmt, UNUSED va_list ap)
|
|
{
|
|
/* no logging */
|
|
}
|
|
|
|
static struct fuzz_renderer *
|
|
fuzz_renderer_get(void)
|
|
{
|
|
static struct fuzz_renderer renderer;
|
|
if (renderer.initialized)
|
|
return &renderer;
|
|
|
|
int ret =
|
|
virgl_renderer_init(NULL, VIRGL_RENDERER_VENUS | VIRGL_RENDERER_NO_VIRGL, NULL);
|
|
if (ret)
|
|
abort();
|
|
|
|
virgl_set_debug_callback(fuzz_debug_callback);
|
|
|
|
atexit(fuzz_atexit_callback);
|
|
|
|
renderer.initialized = true;
|
|
return &renderer;
|
|
}
|
|
|
|
static uint32_t
|
|
fuzz_context_create(UNUSED struct fuzz_renderer *renderer)
|
|
{
|
|
const uint32_t ctx_id = 1;
|
|
const char name[] = "virgl_venus_fuzzer";
|
|
int ret = virgl_renderer_context_create_with_flags(ctx_id, VIRGL_RENDERER_CAPSET_VENUS,
|
|
sizeof(name), name);
|
|
if (ret)
|
|
abort();
|
|
|
|
return ctx_id;
|
|
}
|
|
|
|
static void
|
|
fuzz_context_destroy(UNUSED struct fuzz_renderer *renderer, uint32_t ctx_id)
|
|
{
|
|
virgl_renderer_context_destroy(ctx_id);
|
|
}
|
|
|
|
static void
|
|
fuzz_context_submit(UNUSED struct fuzz_renderer *renderer,
|
|
uint32_t ctx_id,
|
|
const uint8_t *data,
|
|
size_t size)
|
|
{
|
|
virgl_renderer_submit_cmd((void *)data, ctx_id, size / 4);
|
|
}
|
|
|
|
int
|
|
LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
|
|
{
|
|
struct fuzz_renderer *renderer = fuzz_renderer_get();
|
|
|
|
const uint32_t ctx_id = fuzz_context_create(renderer);
|
|
fuzz_context_submit(renderer, ctx_id, data, size);
|
|
fuzz_context_destroy(renderer, ctx_id);
|
|
|
|
return 0;
|
|
}
|
|
|