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authorDanny Holman <dholman@gymli.org>2023-11-26 18:36:26 -0600
committerDanny Holman <dholman@gymli.org>2023-11-26 18:36:26 -0600
commit34ab1bd020ad5567955654ae5f0f8f0a10e62b1e (patch)
tree866b1f17287ed390a19c3f1d54c3153c0440ce9e /arch/i386
parenta7a72efe2301eeedd0898f9a271fb4d514845f8a (diff)
arch: i386: syscall.c: replace function calls with single switch
Replace individual function calls with a single switch-case structure for system calls. The new function, handle_syscall, will construct and call the interrupt without input from the programmer. Signed-off-by: Danny Holman <dholman@gymli.org>
Diffstat (limited to 'arch/i386')
-rw-r--r--arch/i386/kernel/syscall.c30
1 files changed, 9 insertions, 21 deletions
diff --git a/arch/i386/kernel/syscall.c b/arch/i386/kernel/syscall.c
index 18f36ad..593bb64 100644
--- a/arch/i386/kernel/syscall.c
+++ b/arch/i386/kernel/syscall.c
@@ -2,27 +2,15 @@
#include <kernel/io.h>
#include <stddef.h>
-void *(*syscall_handlers[30])(struct isr_frame *frame);
-
-void syscall_dispatch(struct isr_frame *frame) {
- if (syscall_handlers[frame->eax] != NULL)
- syscall_handlers[frame->eax](frame);
- else
- kprintf("Error: Invalid system call number: %d\n", frame->eax);
-}
-
-void register_syscall(void *handler(struct isr_frame*), int num) {
- syscall_handlers[num] = handler;
-}
-
-void sys_stop(struct isr_frame *frame) {
- kprintf("SYSTEM CALL: STOP\n");
- halt_catch_fire(frame);
-}
-
-void sys_status(struct isr_frame *frame) {
- kprintf("SYSTEM CALL: STATUS\n");
- dump_reg(frame);
+int handle_syscall(struct isr_frame *frame) {
+ switch (frame->eax) {
+ case SYS_REBOOT:
+ kprintf("REBOOT NOT SUPPORTED\n");
+ break;
+ default:
+ kprintf("Error: Invalid system call number: %d\n", frame->eax);
+ }
+ return 0;
}
void dump_reg(struct isr_frame *frame) {