Hi Neelesh,
You need to give some untyped memory objects to allocman before it can create
kernel objects. I would encourage you to try and use the
'bootstrap_use_current_simple' if possible (this is what we do in sel4test for
example
https://github.com/seL4/sel4test/blob/master/apps/sel4test-driver/src/main.c#L82).
Otherwise if you look at bootstrap_use_current_simple you will that it first
does bootstrap_use_current_1level and then allocman_add_simple_untypeds, which
in the end boils down to calls to allocman_utspace_add_uts
Adrian
On Wed 26-Oct-2016 8:58 AM, Neelesh Vemula wrote:
Hi
I have created a new process from the root/init task. In the new process I have
the following code for initializing the allocman as below:
vka_t vka;
allocman_t *allocman;
vspace_t vspace;
#define ALLOCATOR_STATIC_POOL_SIZE ((1 << seL4_PageBits) * 10)
UNUSED static char allocator_mem_pool[ALLOCATOR_STATIC_POOL_SIZE];
#define ALLOCATOR_VIRTUAL_POOL_SIZE ((1 << seL4_PageBits) * 100)
int main(int argc, char **argv) {
allocman = bootstrap_use_current_1level(SEL4UTILS_CNODE_SLOT,
CONFIG_SEL4UTILS_CSPACE_SIZE_BITS,
0,
(1u <<
CONFIG_SEL4UTILS_CSPACE_SIZE_BITS),
ALLOCATOR_STATIC_POOL_SIZE,
allocator_mem_pool);
allocman_make_vka(&vka, allocman);
vka_object_t ep_object = {0};
error = vka_alloc_endpoint(&vka, &ep_object);
ZF_LOGF_IFERR(error, "Failed to allocate new endpoint object.\n");
I have the following definition structure shared as
enum sel4utils_cspace_layout {
/*
* The root cnode (with appropriate guard)
*/
SEL4UTILS_CNODE_SLOT = 1,
/* The slot on the cspace that fault_endpoint is put if
* sel4utils_configure_process is used.
*/
SEL4UTILS_ENDPOINT_SLOT = 2,
SEL4UTILS_PD_SLOT = 3,
FREE_SLOT = 4,
};
This particular program has compiled for zynq-7000 platform and when running it
I get the following output in the stdout :
Just entered the user function
[email protected]:51<mailto:[email protected]:51> Failed to
allocate object of size 16, error 1
Assertion failed: error == 0 (/apps/zynq-comm-user/src/main.c: main: 71)
I have been not able to figure out why this error is occurring. I can only
guess that the allocman was not initialized properly. Can someone help me with
what I may have done wrong?
Regards
Neelesh Vemula
_______________________________________________
Devel mailing list
[email protected]<mailto:[email protected]>
https://sel4.systems/lists/listinfo/devel
_______________________________________________
Devel mailing list
[email protected]
https://sel4.systems/lists/listinfo/devel
