| Message ID | 20240702184448.551705-2-pierrick.bouvier@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | plugins: access values during a memory read/write | expand |
On 7/2/24 11:44, Pierrick Bouvier wrote: > data was correctly copied, but size of array was not set > (g_array_sized_new only reserves memory, but does not set size). > > As a result, callbacks were not called for code path relying on > plugin_register_vcpu_mem_cb(). > > Found when trying to trigger mem access callbacks for atomic > instructions. > > Reviewed-by: Xingtao Yao<yaoxt.fnst@fujitsu.com> > Signed-off-by: Pierrick Bouvier<pierrick.bouvier@linaro.org> > --- > accel/tcg/plugin-gen.c | 3 +-- > 1 file changed, 1 insertion(+), 2 deletions(-) Reviewed-by: Richard Henderson <richard.henderson@linaro.org> r~
diff --git a/accel/tcg/plugin-gen.c b/accel/tcg/plugin-gen.c index b6bae32b997..ec89a085b43 100644 --- a/accel/tcg/plugin-gen.c +++ b/accel/tcg/plugin-gen.c @@ -85,8 +85,7 @@ static void gen_enable_mem_helper(struct qemu_plugin_tb *ptb, len = insn->mem_cbs->len; arr = g_array_sized_new(false, false, sizeof(struct qemu_plugin_dyn_cb), len); - memcpy(arr->data, insn->mem_cbs->data, - len * sizeof(struct qemu_plugin_dyn_cb)); + g_array_append_vals(arr, insn->mem_cbs->data, len); qemu_plugin_add_dyn_cb_arr(arr); tcg_gen_st_ptr(tcg_constant_ptr((intptr_t)arr), tcg_env,