Commit Graph

3 Commits

Author SHA1 Message Date
Justin C. Miller
b056d95920 Organize system calls
* syscalls should all return j6_status_t now
* syscalls are grouped by category in name as well as in files
2019-07-07 09:54:29 -07:00
Justin C. Miller
8375870af6 Improve syscall definitions
- Allow constant id specification
- Define function signature in SYSCALL macro
- Move implementation into src/kernel/syscalls/*.cpp
2019-04-03 10:03:15 -07:00
Justin C. Miller
11a53e792f Improve syscalls for new task switching
There are a lot of under the hood changes here:
- Move syscalls to be a dispatch table, defined by syscalls.inc
- Don't need a full process state (push_all) in syscalls now
- In push_all, define REGS instead of using offsets
- Save TWO stack pointers as well as current saved stack pointer in TCB:
  - rsp0 is the base of the kernel stack for interrupts
  - rsp3 is the saved user stack from cpu_data
- Update syscall numbers in nulldrv
- Some asm-debugging enhancements to the gdb script
- fork() still not working
2019-04-02 00:25:36 -07:00