feat: integrate gdb support over serial port for bare-metal debugging.

[lunaix-os.git] / lunaix-os / kernel / proc0.c

diff --git a/lunaix-os/kernel/proc0.c b/lunaix-os/kernel/proc0.c
index c02cbe1f3087f35ad9f2e4a6587c57a15f2c4411..2a410322345706414a4d2d4719c548e63b8e7c4a 100644 (file)
--- a/lunaix-os/kernel/proc0.c
+++ b/lunaix-os/kernel/proc0.c
@@ -10,11 +10,13 @@
 #include <lunaix/mm/valloc.h>
 #include <lunaix/mm/vmm.h>
 #include <lunaix/peripheral/ps2kbd.h>
+#include <lunaix/peripheral/serial.h>
 #include <lunaix/proc.h>
 #include <lunaix/spike.h>
 #include <lunaix/syscall.h>
 #include <lunaix/syslog.h>
 #include <lunaix/types.h>
+#include <sdbg/protocol.h>
 
 #include <hal/acpi/acpi.h>
 #include <hal/ahci/ahci.h>
@@ -27,6 +29,8 @@
 
 #include <klibc/string.h>
 
+#include <ulibc/stdio.h>
+
 LOG_MODULE("PROC0")
 
 extern void
@@ -48,7 +52,8 @@ __do_reserved_memory(int unlock);
 // #define DEMO_SIGNAL
 // #define DEMO_READDIR
 // #define DEMO_IOTEST
-#define DEMO_INPUT_TEST
+// #define DEMO_INPUT_TEST
+#define DEMO_SIMPLE_SH
 
 extern void
 _pconsole_main();
@@ -68,14 +73,17 @@ _iotest_main();
 extern void
 input_test();
 
+extern void
+sh_main();
+
 void __USER__
 __proc0_usr()
 {
     // 打开tty设备(控制台)，作为标准输入输出。
     //  tty设备属于序列设备（Sequential Device），该类型设备的上层读写
     //  无须经过Lunaix的缓存层，而是直接下发到底层驱动。（不受FO_DIRECT的影响）
-    int stdout = open("/dev/tty", 0);
-    int stdin = dup2(stdout, 1);
+    int fdstdout = open("/dev/tty", 0);
+    int fdstdin = dup2(stdout, 1);
 
     pid_t p;
     // if (!fork()) {
@@ -93,9 +101,12 @@ __proc0_usr()
         _iotest_main();
 #elif defined DEMO_INPUT_TEST
         input_test();
+#elif defined DEMO_SIMPLE_SH
+        sh_main();
 #else
         _lxinit_main();
 #endif
+        printf("==== test end ====\n");
         _exit(0);
     }
 
@@ -148,33 +159,35 @@ init_platform()
     // 锁定所有系统预留页（内存映射IO，ACPI之类的），并且进行1:1映射
     lock_reserved_memory();
 
-    // we are using no kalloc!
-    // assert_msg(kalloc_init(), "Fail to initialize heap");
-
     rtc_init();
     acpi_init(_k_init_mb_info);
     apic_init();
     ioapic_init();
+    serial_init();
+    sdbg_init();
     timer_init(SYS_TIMER_FREQUENCY_HZ);
     clock_init();
     ps2_kbd_init();
     pci_init();
     block_init();
     ahci_init();
-    // ahci_list_device();
-    // cake_stats();
 
     syscall_install();
 
     console_start_flushing();
     console_flush();
 
+    cake_export();
     unlock_reserved_memory();
 
     for (size_t i = 0; i < (uintptr_t)(&__init_hhk_end); i += PG_SIZE) {
         vmm_del_mapping(PD_REFERENCED, (void*)i);
         pmm_free_page(KERNEL_PID, (void*)i);
     }
+
+    for (size_t i = L1_INDEX(KERNEL_MM_BASE); i < 1023; i++) {
+        vmm_set_mapping(PD_REFERENCED, i << 22, 0, 0, VMAP_NOMAP);
+    }
 }
 
 void