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[project] Generate syscalls from new interface DSL

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This change adds a new interface DSL for specifying objects (with
methods) and interfaces (that expose objects, and optionally have their
own methods).

Significant changes:

- Add the new scripts/definitions Python module to parse the DSL
- Add the new definitions directory containing DSL definition files
- Use cog to generate syscall-related code in kernel and libj6
- Unify ordering of pointer + length pairs in interfaces
This commit is contained in:
Justin C. Miller
2021-08-30 01:05:32 -07:00
parent 80f815c020
commit 186724e751
52 changed files with 4025 additions and 206 deletions
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24
src/kernel/syscalls/endpoint.cpp
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@@ -15,7 +15,7 @@ endpoint_create(j6_handle_t *handle)
}
j6_status_t
endpoint_send(j6_handle_t handle, j6_tag_t tag, size_t len, void *data)
endpoint_send(j6_handle_t handle, uint64_t tag, const void * data, size_t data_len)
{
if (tag & j6_tag_system_flag)
return j6_err_invalid_arg;
@@ -23,28 +23,28 @@ endpoint_send(j6_handle_t handle, j6_tag_t tag, size_t len, void *data)
endpoint *e = get_handle<endpoint>(handle);
if (!e) return j6_err_invalid_arg;
return e->send(tag, len, data);
return e->send(tag, data, data_len);
}
j6_status_t
endpoint_receive(j6_handle_t handle, j6_tag_t *tag, size_t *len, void *data)
endpoint_receive(j6_handle_t handle, uint64_t * tag, void * data, size_t * data_len)
{
if (!tag || !len || (*len && !data))
if (!tag || !data_len || !data)
return j6_err_invalid_arg;
endpoint *e = get_handle<endpoint>(handle);
if (!e) return j6_err_invalid_arg;
j6_tag_t out_tag = j6_tag_invalid;
size_t out_len = *len;
j6_status_t s = e->receive(&out_tag, &out_len, data);
size_t out_len = *data_len;
j6_status_t s = e->receive(&out_tag, data, &out_len);
*tag = out_tag;
*len = out_len;
*data_len = out_len;
return s;
}
j6_status_t
endpoint_sendrecv(j6_handle_t handle, j6_tag_t *tag, size_t *len, void *data)
endpoint_sendrecv(j6_handle_t handle, uint64_t * tag, void * data, size_t * data_len)
{
if (!tag || (*tag & j6_tag_system_flag))
return j6_err_invalid_arg;
@@ -52,15 +52,15 @@ endpoint_sendrecv(j6_handle_t handle, j6_tag_t *tag, size_t *len, void *data)
endpoint *e = get_handle<endpoint>(handle);
if (!e) return j6_err_invalid_arg;
j6_status_t status = e->send(*tag, *len, data);
j6_status_t status = e->send(*tag, data, *data_len);
if (status != j6_status_ok)
return status;
j6_tag_t out_tag = j6_tag_invalid;
size_t out_len = *len;
j6_status_t s = e->receive(&out_tag, &out_len, data);
size_t out_len = *data_len;
j6_status_t s = e->receive(&out_tag, data, &out_len);
*tag = out_tag;
*len = out_len;
*data_len = out_len;
return s;
}