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Test getslice_fixed when a buffer is requests which exceeds memory

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Toby Jaffey 2025-12-13 23:29:45 +00:00
parent a7b480fd11
commit aae4eacfb8
1 changed files with 21 additions and 0 deletions
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21
test/syscall_args/test/tests.c
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@ -190,3 +190,24 @@ void test_syscall_args_string_never_terminates(void) {
TEST_ASSERT_EQUAL(evt.data.err.errcode, UVM32_ERR_MEM_RD); TEST_ASSERT_EQUAL(evt.data.err.errcode, UVM32_ERR_MEM_RD);
} }
void test_syscall_args_bufrd_toolarge(void) {
// run the vm
uvm32_run(&vmst, &evt, 1000);
// check for picktest syscall
TEST_ASSERT_EQUAL(evt.typ, UVM32_EVT_SYSCALL);
TEST_ASSERT_EQUAL(evt.data.syscall.code, SYSCALL_PICKTEST);
uvm32_arg_setval(&vmst, &evt, RET, SYSCALL_C);
uvm32_run(&vmst, &evt, 1000);
TEST_ASSERT_EQUAL(evt.typ, UVM32_EVT_SYSCALL);
TEST_ASSERT_EQUAL(evt.data.syscall.code, SYSCALL_C);
// get buffer described by ptr=ARG0,len=ARG1
uvm32_slice_t buf = uvm32_arg_getslice_fixed(&vmst, &evt, ARG0, 256);
TEST_ASSERT_EQUAL(0, buf.len);
// check for error state
uvm32_run(&vmst, &evt, 100);
TEST_ASSERT_EQUAL(evt.typ, UVM32_EVT_ERR);
TEST_ASSERT_EQUAL(evt.data.err.errcode, UVM32_ERR_MEM_RD);
}