feat: implement FDT-based memory discovery and add comprehensive debug logging to exec syscalls

1 files changed, 25 insertions, 32 deletions

diff --git a/src/user/usys.S b/src/user/usys.S
index 885d45c..1e373d3 100644
--- a/src/user/usys.S
+++ b/src/user/usys.S
@@ -3,13 +3,6 @@
 
 #include "kernel/syscall.h"
 
-#define SYSCALL(name) \
-    .global name; \
-    name: \
-        li a7, SYS_ ## name; \
-        ecall; \
-        ret
-
 #define SYSCALL_NAME(name, sysname) \
     .global name; \
     name: \
@@ -17,29 +10,29 @@
         ecall; \
         ret
 
-SYSCALL_NAME(sys_exit, exit) 
+SYSCALL_NAME(sys_openat, openat)
+SYSCALL_NAME(sys_mknodat, mknodat)
+SYSCALL_NAME(sys_mkdirat, mkdirat)
+SYSCALL_NAME(sys_unlinkat, unlinkat)
+SYSCALL_NAME(sys_linkat, linkat)
+SYSCALL_NAME(sys_chdir, chdir)
+SYSCALL_NAME(sys_dup, dup)
+SYSCALL_NAME(sys_fstat, fstat)
+SYSCALL_NAME(sys_read, read)
+SYSCALL_NAME(sys_write, write)
+SYSCALL_NAME(sys_close, close)
+SYSCALL_NAME(sys_pipe2, pipe2)
+SYSCALL_NAME(sys_clone, clone)
+SYSCALL_NAME(sys_execve, execve)
+SYSCALL_NAME(sys_wait4, wait4)
+SYSCALL_NAME(sys_exit, exit)
+SYSCALL_NAME(sys_getpid, getpid)
+SYSCALL_NAME(sys_brk, brk)
+SYSCALL_NAME(sys_kill, kill)
+SYSCALL_NAME(sys_nanosleep, nanosleep)
+SYSCALL_NAME(sys_reboot, reboot)
+SYSCALL_NAME(sys_lseek, lseek)
 
-SYSCALL(fork)
-SYSCALL(wait)
-SYSCALL(pipe)
-SYSCALL(read)
-SYSCALL(write)
-SYSCALL(close)
-SYSCALL(kill)
-SYSCALL(exec)
-SYSCALL(open)
-SYSCALL(mknod)
-SYSCALL(unlink)
-SYSCALL(fstat)
-SYSCALL(link)
-SYSCALL(mkdir)
-SYSCALL(chdir)
-SYSCALL(dup)
-SYSCALL(getpid)
-SYSCALL(sbrk)
-SYSCALL(sleep)
-SYSCALL(uptime)
-SYSCALL(putc)
-SYSCALL(disk_test)
-SYSCALL(lseek)
-SYSCALL(shutdown)
\ No newline at end of file
+# === Custom / Debug Syscalls ===
+SYSCALL_NAME(sys_putc, putc)
+SYSCALL_NAME(sys_disk_test, disk_test)
\ No newline at end of file