feat: basic elf32 loader (only LOAD segment is supported)

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

diff --git a/lunaix-os/kernel/proc0.c b/lunaix-os/kernel/proc0.c
index 2a410322345706414a4d2d4719c548e63b8e7c4a..6f39299977eaf1dac49a312cb1efce05db75d2ae 100644 (file)
--- a/lunaix-os/kernel/proc0.c
+++ b/lunaix-os/kernel/proc0.c
@@ -1,9 +1,8 @@
 #include <lunaix/block.h>
 #include <lunaix/common.h>
 #include <lunaix/block.h>
 #include <lunaix/common.h>

-#include <lunaix/fctrl.h>
+#include <lunaix/foptions.h>

 #include <lunaix/fs.h>
 #include <lunaix/fs/twifs.h>
 #include <lunaix/fs.h>
 #include <lunaix/fs/twifs.h>

-#include <lunaix/lunistd.h>

 #include <lunaix/lxconsole.h>
 #include <lunaix/mm/cake.h>
 #include <lunaix/mm/pmm.h>
 #include <lunaix/lxconsole.h>
 #include <lunaix/mm/cake.h>
 #include <lunaix/mm/pmm.h>


@@ -11,11 +10,15 @@
 #include <lunaix/mm/vmm.h>
 #include <lunaix/peripheral/ps2kbd.h>
 #include <lunaix/peripheral/serial.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 <lunaix/spike.h>
 #include <lunaix/syscall.h>
 #include <lunaix/syslog.h>
 #include <lunaix/types.h>

+
+#include <usr/fcntl.h>
+#include <usr/sys/lunaix.h>
+#include <usr/unistd.h>
+

 #include <sdbg/protocol.h>
 
 #include <hal/acpi/acpi.h>
 #include <sdbg/protocol.h>
 
 #include <hal/acpi/acpi.h>


@@ -76,6 +79,18 @@ input_test();
 extern void
 sh_main();
 
 extern void
 sh_main();
 

+void __USER__
+__setup_dir()
+{
+    int errno;
+    mkdir("/mnt");
+    mkdir("/mnt/lunaix-os");
+
+    if ((errno = mount("/dev/sdb", "/mnt/lunaix-os", "iso9660", 0))) {
+        syslog(2, "fail mounting boot medium. (%d)\n", errno);
+    }
+}
+

 void __USER__
 __proc0_usr()
 {
 void __USER__
 __proc0_usr()
 {


@@ -85,10 +100,9 @@ __proc0_usr()
     int fdstdout = open("/dev/tty", 0);
     int fdstdin = dup2(stdout, 1);
 
     int fdstdout = open("/dev/tty", 0);
     int fdstdin = dup2(stdout, 1);
 

+    __setup_dir();
+

     pid_t p;
     pid_t p;

-    // if (!fork()) {
-    //     _pconsole_main();
-    // }

 
     if (!(p = fork())) {
 #ifndef USE_DEMO
 
     if (!(p = fork())) {
 #ifndef USE_DEMO


@@ -132,6 +146,7 @@ __proc0()
 
     init_proc_user_space(__current);
 
 
     init_proc_user_space(__current);
 

+    // user space

     asm volatile("movw %0, %%ax\n"
                  "movw %%ax, %%es\n"
                  "movw %%ax, %%ds\n"
     asm volatile("movw %0, %%ax\n"
                  "movw %%ax, %%es\n"
                  "movw %%ax, %%ds\n"


@@ -156,38 +171,50 @@ extern multiboot_info_t* _k_init_mb_info; /* k_init.c */
 void
 init_platform()
 {
 void
 init_platform()
 {

+    kprintf(KINFO "\033[11;0mLunaixOS (gcc v%s, %s)\033[39;49m\n",
+            __VERSION__,
+            __TIME__);
+

     // 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();
 
     // 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();
 

-    rtc_init();
+    // firmware

     acpi_init(_k_init_mb_info);
     acpi_init(_k_init_mb_info);

+
+    // die

     apic_init();
     ioapic_init();
     apic_init();
     ioapic_init();

+
+    // debugger

     serial_init();
     sdbg_init();
     serial_init();
     sdbg_init();

+
+    // timers & clock
+    rtc_init();

     timer_init(SYS_TIMER_FREQUENCY_HZ);
     clock_init();
     timer_init(SYS_TIMER_FREQUENCY_HZ);
     clock_init();

+
+    // peripherals & chipset features

     ps2_kbd_init();
     ps2_kbd_init();

-    pci_init();

     block_init();
     ahci_init();
 
     block_init();
     ahci_init();
 

-    syscall_install();
+    pci_init();

 
 

+    // console

     console_start_flushing();
     console_flush();
 
     console_start_flushing();
     console_flush();
 

+    // expose cake allocator states to vfs

     cake_export();
     cake_export();

+

     unlock_reserved_memory();
 
     unlock_reserved_memory();
 

+    // clean up

     for (size_t i = 0; i < (uintptr_t)(&__init_hhk_end); i += PG_SIZE) {
     for (size_t i = 0; i < (uintptr_t)(&__init_hhk_end); i += PG_SIZE) {

-        vmm_del_mapping(PD_REFERENCED, (void*)i);
+        vmm_del_mapping(VMS_SELF, (void*)i);

         pmm_free_page(KERNEL_PID, (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
 }
 
 void


@@ -219,22 +246,30 @@ __do_reserved_memory(int unlock)
         size_t pg_num = CEIL(mmap.len_low, PG_SIZE_BITS);
         size_t j = 0;
         if (!unlock) {
         size_t pg_num = CEIL(mmap.len_low, PG_SIZE_BITS);
         size_t j = 0;
         if (!unlock) {

+            kprintf("mem: freeze: %p..%p type=%x\n",
+                    pa,
+                    pa + pg_num * PG_SIZE,
+                    mmap.type);

             for (; j < pg_num; j++) {
                 uintptr_t _pa = pa + (j << PG_SIZE_BITS);
                 if (_pa >= KERNEL_MM_BASE) {
                     // Don't fuck up our kernel space!
                     break;
                 }
             for (; j < pg_num; j++) {
                 uintptr_t _pa = pa + (j << PG_SIZE_BITS);
                 if (_pa >= KERNEL_MM_BASE) {
                     // Don't fuck up our kernel space!
                     break;
                 }

-                vmm_set_mapping(PD_REFERENCED, _pa, _pa, PG_PREM_R, VMAP_NULL);
+                vmm_set_mapping(VMS_SELF, _pa, _pa, PG_PREM_R, VMAP_NULL);

                 pmm_mark_page_occupied(
                   KERNEL_PID, _pa >> PG_SIZE_BITS, PP_FGLOCKED);
             }
             // Save the progress for later unmapping.
             mmaps[i].len_low = j * PG_SIZE;
         } else {
                 pmm_mark_page_occupied(
                   KERNEL_PID, _pa >> PG_SIZE_BITS, PP_FGLOCKED);
             }
             // Save the progress for later unmapping.
             mmaps[i].len_low = j * PG_SIZE;
         } else {

+            kprintf("mem: reclaim: %p..%p type=%x\n",
+                    pa,
+                    pa + pg_num * PG_SIZE,
+                    mmap.type);

             for (; j < pg_num; j++) {
                 uintptr_t _pa = pa + (j << PG_SIZE_BITS);
             for (; j < pg_num; j++) {
                 uintptr_t _pa = pa + (j << PG_SIZE_BITS);

-                vmm_del_mapping(PD_REFERENCED, _pa);
+                vmm_del_mapping(VMS_SELF, _pa);

                 if (mmap.type == MULTIBOOT_MEMORY_ACPI_RECLAIMABLE) {
                     pmm_mark_page_free(_pa >> PG_SIZE_BITS);
                 }
                 if (mmap.type == MULTIBOOT_MEMORY_ACPI_RECLAIMABLE) {
                     pmm_mark_page_free(_pa >> PG_SIZE_BITS);
                 }