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| author | Jon Santmyer <jon@jonsantmyer.com> | 2026-09-05 20:24:13 -0400 |
|---|---|---|
| committer | Jon Santmyer <jon@jonsantmyer.com> | 2026-09-05 20:24:13 -0400 |
| commit | 779b7fc1fe91e5a355b6e15de882d46b26ab2270 (patch) | |
| tree | c62da25a0a0b02488550e856921350fd94668c2b /arch/x86_64/sys/syscall.c | |
| parent | 73cbb23130f634bf52ac92da063efd3e6016f8ee (diff) | |
| download | jove-kernel-779b7fc1fe91e5a355b6e15de882d46b26ab2270.tar.gz jove-kernel-779b7fc1fe91e5a355b6e15de882d46b26ab2270.tar.bz2 jove-kernel-779b7fc1fe91e5a355b6e15de882d46b26ab2270.zip | |
working syscalls.
Diffstat (limited to 'arch/x86_64/sys/syscall.c')
| -rw-r--r-- | arch/x86_64/sys/syscall.c | 40 |
1 files changed, 24 insertions, 16 deletions
diff --git a/arch/x86_64/sys/syscall.c b/arch/x86_64/sys/syscall.c index 4e95225..b2d3e7f 100644 --- a/arch/x86_64/sys/syscall.c +++ b/arch/x86_64/sys/syscall.c @@ -1,24 +1,33 @@ +#include "arch/x86_64/hal/obj.h" #include "arch/x86_64/hal/process.h" #include "arch/x86_64/hal/smp.h" -#include "hal/smp.h" -#include "jove.h" +#include "lib/printf.h" + +#include "syscall.h" + +syscall_handle_t s_arch_handles[128] = { + [JOVE_OBJ_SERIAL_COM-0x80] = _syscall_handle_serial +}; int -syscall_handler_arch(uint64_t message_path_raw, uint64_t message_pathlen) +syscall_handle_arch( + jove_owned_obj_t *pcb_obj, + jove_owned_obj_t *objdir, + jove_owned_obj_t *message_obj, + jove_owned_obj_t *target_obj, + struct syscall_header *header, + size_t bytes_left, + void *payload) { - uint16_t *message_path = (uint16_t*)&message_path_raw; - if(message_pathlen > 4) { - return EBADPATH; - } - processor_t *proc = processor_current(); - jove_owned_obj_t *objdir = obj_take(proc->pcb->rootdir); - jove_owned_obj_t *message_obj = objdir_getobj(objdir, message_path, message_pathlen); - if(message_obj == 0) { - obj_release(objdir); - return errno; + uint8_t target_type = obj_gettype(target_obj) - 0x80; + syscall_handle_t call_handle = s_arch_handles[target_type]; + if(call_handle == NULL) { + kprintf("syscall: Process %i tried to call syscall on object %P which doesn't support syscalls!\n", + pcb_pid(obj_deref(pcb_obj)), header->path, header->pathlen); + return EBADOBJ; } - return 0; + return call_handle(pcb_obj, objdir, message_obj, target_obj, header, bytes_left, payload); } __attribute__((naked)) @@ -38,7 +47,7 @@ void _syscall_entry(void) pushq %%r13; \ pushq %%r14; \ pushq %%r15; \ - callq syscall_handler_arch; \ + callq syscall_handler; \ swapgs; \ popq %%r15; \ popq %%r14; \ @@ -53,7 +62,6 @@ void _syscall_entry(void) xorq %%r8, %%r8; \ xorq %%r9, %%r9; \ xorq %%r10, %%r10; \ - popq %%rcx; \ popq %%r11; \ popq %%rsp; \ sysretq;" |