All system calls made from userspace which involve pointers to kernel
objects (including device drivers) will need to have those pointers
validated; userspace should never be able to crash the kernel by passing
it garbage.
The actual validation with _k_object_validate() will be in the system
call receiver code, which doesn't exist yet.
- CONFIG_USERSPACE introduced. We are somewhat far away from having an
end-to-end implementation, but at least need a Kconfig symbol to
guard the incoming code with. Formal documentation doesn't exist yet
either, but will appear later down the road once the implementation is
mostly finalized.
- In the memory region for RAM, the data section has been moved last,
past bss and noinit. This ensures that inserting generated tables
with addresses of kernel objects does not change the addresses of
those objects (which would make the table invalid)
- The DWARF debug information in the generated ELF binary is parsed to
fetch the locations of all kernel objects and pass this to gperf to
create a perfect hash table of their memory addresses.
- The generated gperf code doesn't know that we are exclusively working
with memory addresses and uses memory inefficently. A post-processing
script process_gperf.py adjusts the generated code before it is
compiled to work with pointer values directly and not strings
containing them.
- _k_object_init() calls inserted into the init functions for the set of
kernel object types we are going to support so far
Issue: ZEP-2187
Signed-off-by: Andrew Boie <andrew.p.boie@intel.com>
Fixes sparse warnings:
<snip>/zephyr/kernel/timer.c:15:16: warning: symbol '_trace_list_k_timer' was not declared. Should it be static?
<snip>/zephyr/kernel/sem.c:32:14: warning: symbol'_trace_list_k_sem' was not declared. Should it be static?
<snip>/zephyr/kernel/stack.c:24:16: warning: symbol '_trace_list_k_stack' was not declared. Should it be static?
<snip>/zephyr/kernel/queue.c:27:16: warning: symbol '_trace_list_k_queue' was not declared. Should it be static?
<snip>/zephyr/kernel/pipes.c:40:15: warning: symbol '_trace_list_k_pipe' was not declared. Should it be static?
<snip>/zephyr/kernel/mutex.c:46:16: warning: symbol '_trace_list_k_mutex' was not declared. Should it be static?
<snip>/zephyr/kernel/msg_q.c:26:15: warning: symbol '_trace_list_k_msgq' was not declared. Should it be static?
<snip>/zephyr/kernel/mem_slab.c:20:19: warning: symbol '_trace_list_k_mem_slab' was not declared. Should it be static?
<snip>/zephyr/kernel/mailbox.c:53:15: warning: symbol '_trace_list_k_mbox' was not declared. Should it be static?
Change-Id: I42d55aea9855b9c1dd560852ca033c9a19f1ac21
Signed-off-by: Maciek Borzecki <maciek.borzecki@gmail.com>
Convert code to use u{8,16,32,64}_t and s{8,16,32,64}_t instead of C99
integer types. This handles the remaining includes and kernel, plus
touching up various points that we skipped because of include
dependancies. We also convert the PRI printf formatters in the arch
code over to normal formatters.
Jira: ZEP-2051
Change-Id: Iecbb12601a3ee4ea936fd7ddea37788a645b08b0
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Replace the existing Apache 2.0 boilerplate header with an SPDX tag
throughout the zephyr code tree. This patch was generated via a
script run over the master branch.
Also updated doc/porting/application.rst that had a dependency on
line numbers in a literal include.
Manually updated subsys/logging/sys_log.c that had a malformed
header in the original file. Also cleanup several cases that already
had a SPDX tag and we either got a duplicate or missed updating.
Jira: ZEP-1457
Change-Id: I6131a1d4ee0e58f5b938300c2d2fc77d2e69572c
Signed-off-by: David B. Kinder <david.b.kinder@intel.com>
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Also remove mentions of unified kernel in various places in the kernel,
samples and documentation.
Change-Id: Ice43bc73badbe7e14bae40fd6f2a302f6528a77d
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Andrew Boie