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71 lines
1.8 KiB
C
71 lines
1.8 KiB
C
#include <aux/compiler.h>
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#include <libk/std.h>
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#include <m/syscall_defs.h>
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#include <mm/pmm.h>
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#include <proc/proc.h>
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#include <sys/debug.h>
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#include <sys/mm.h>
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#include <syscall/syscall.h>
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#define DEFINE_SYSCALL(name) \
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int name (struct proc* proc, uintptr_t UNUSED a1, uintptr_t UNUSED a2, uintptr_t UNUSED a3, \
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uintptr_t UNUSED a4, uintptr_t UNUSED a5, uintptr_t UNUSED a6)
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/* int proc_quit (void) */
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DEFINE_SYSCALL (sys_proc_quit) {
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proc_kill (proc);
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proc_sched ();
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return SR_OK;
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}
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/* int proc_test (void) */
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DEFINE_SYSCALL (sys_proc_test) {
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DEBUG ("test syscall message!\n");
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return SR_OK;
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}
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/* int proc_map (uintptr_t vaddr, size_t pages, uint32_t flags) */
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DEFINE_SYSCALL (sys_proc_map) {
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uintptr_t vaddr = a1;
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size_t pages = (size_t)a2;
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uint32_t flags = (uint32_t)a3;
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if (vaddr % PAGE_SIZE != 0)
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return -SR_UNALIGNED;
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uintptr_t paddr = pmm_alloc (pages);
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if (paddr == PMM_ALLOC_ERR)
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return -SR_OOM_ERROR;
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bool ok = proc_map (proc, paddr, vaddr, pages, flags);
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return ok ? SR_OK : -SR_OOM_ERROR;
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}
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/* int proc_unmap (uintptr_t vaddr, size_t pages) */
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DEFINE_SYSCALL (sys_proc_unmap) {
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uintptr_t vaddr = a1;
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size_t pages = (size_t)a2;
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if (vaddr % PAGE_SIZE != 0)
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return -SR_UNALIGNED;
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bool ok = proc_unmap (proc, vaddr, pages);
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return ok ? SR_OK : -SR_OOM_ERROR;
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}
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static syscall_handler_func_t handler_table[] = {
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[SYS_PROC_QUIT] = &sys_proc_quit,
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[SYS_PROC_TEST] = &sys_proc_test,
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[SYS_PROC_MAP] = &sys_proc_map,
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[SYS_PROC_UNMAP] = &sys_proc_unmap,
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};
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syscall_handler_func_t syscall_find_handler (int syscall_num) {
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if (!(syscall_num >= 0 &&
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syscall_num < (int)(sizeof (handler_table) / sizeof (handler_table[0])))) {
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return NULL;
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}
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return handler_table[syscall_num];
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}
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