Fixes handle_indirs issue
[akaros.git] / kern / src / init.c
index 9ba8984..774181d 100644 (file)
 #include <blockdev.h>
 #include <ext2fs.h>
 #include <kthread.h>
-#include <net.h>
-#include <socket.h>
-#include <eth_audio.h>
 #include <console.h>
+#include <linker_func.h>
+#include <ip.h>
+#include <acpi.h>
+#include <coreboot_tables.h>
 
 // zra: flag for Ivy
 int booting = 1;
+struct sysinfo_t sysinfo;
+static void run_linker_funcs(void);
+static int run_init_script(void);
 
 void kernel_init(multiboot_info_t *mboot_info)
 {
@@ -72,36 +76,26 @@ void kernel_init(multiboot_info_t *mboot_info)
        radix_init();
        cache_color_alloc_init();       // Inits data structs
        colored_page_alloc_init();      // Allocates colors for agnostic processes
+       acpiinit();
        kthread_init();                                 /* might need to tweak when this happens */
        vmr_init();
        file_init();
        page_check();
-       vfs_init();
-       devfs_init();
        idt_init();
        kernel_msg_init();
        timer_init();
+       vfs_init();
+       devfs_init();
        train_timing();
        kb_buf_init(&cons_buf);
        arch_init();
        block_init();
        enable_irq();
-/*
-       void ether8139link(void);
-       ether8139link();
-       void ether8169link(void);
-       ether8169link();
-       void etherigbelink(void);
-       etherigbelink();
-*/
-       ethermediumlink();
-       loopbackmediumlink();
-void devtabinit(void);
-       devtabinit();
-/*
-void devtabreset(void);
+       run_linker_funcs();
+       /* reset/init devtab after linker funcs 3 and 4.  these run NIC and medium
+        * pre-inits, which need to happen before devether. */
        devtabreset();
-*/
+       devtabinit();
 
 #ifdef CONFIG_EXT2FS
        mount_fs(&ext2_fs_type, "/dev/ramdisk", "/mnt", 0);
@@ -109,12 +103,68 @@ void devtabreset(void);
 #ifdef CONFIG_ETH_AUDIO
        eth_audio_init();
 #endif /* CONFIG_ETH_AUDIO */
-
+       get_coreboot_info(&sysinfo);
        // zra: let's Ivy know we're done booting
        booting = 0;
 
+#ifdef CONFIG_RUN_INIT_SCRIPT
+       if (run_init_script()) {
+               printk("Configured to run init script, but no script specified!\n");
+               manager();
+       }
+#else
        manager();
+#endif
+}
+
+#ifdef CONFIG_RUN_INIT_SCRIPT
+static int run_init_script(void)
+{
+       /* If we have an init script path specified */
+       if (strlen(CONFIG_INIT_SCRIPT_PATH_AND_ARGS) != 0) {
+               int vargs = 0;
+               char *sptr = &CONFIG_INIT_SCRIPT_PATH_AND_ARGS[0];
+
+               /* Figure out how many arguments there are, by finding the spaces */
+               /* TODO: consider rewriting this stuff with parsecmd */
+               while (*sptr != '\0') {
+                       if (*(sptr++) != ' ') {
+                               vargs++;
+                               while ((*sptr != ' ') && (*sptr != '\0'))
+                                       sptr++;
+                       }
+               }
+
+               /* Initialize l_argv with its first three arguments, but allocate space
+                * for all arguments as calculated above */
+               int static_args = 3;
+               int total_args = vargs + static_args;
+               char *l_argv[total_args];
+               l_argv[0] = "";
+               l_argv[1] = "busybox";
+               l_argv[2] = "ash";
+
+               /* Initialize l_argv with the rest of the arguments */
+               int i = static_args;
+               sptr = &CONFIG_INIT_SCRIPT_PATH_AND_ARGS[0];
+               while (*sptr != '\0') {
+                       if (*sptr != ' ') {
+                               l_argv[i++] = sptr;
+                               while ((*sptr != ' ') && (*sptr != '\0'))
+                                       sptr++;
+                               if (*sptr == '\0')
+                                       break;
+                               *sptr = '\0';
+                       }
+                       sptr++;
+               }
+
+               /* Run the script with its arguments */
+               mon_bin_run(total_args, l_argv, NULL);
+       }
+       return -1;
 }
+#endif
 
 /*
  * Panic is called on unresolvable fatal errors.
@@ -156,4 +206,43 @@ void _warn(const char *file, int line, const char *fmt,...)
        va_end(ap);
 }
 
+static void run_links(linker_func_t *linkstart, linker_func_t *linkend)
+{
+       /* Unlike with devtab, our linker sections for the function pointers are
+        * 8 byte aligned (4 on 32 bit) (done by the linker/compiler), so we don't
+        * have to worry about that.  */
+       printd("linkstart %p, linkend %p\n", linkstart, linkend);
+       for (int i = 0; &linkstart[i] < linkend; i++) {
+               printd("i %d, linkfunc %p\n", i, linkstart[i]);
+               linkstart[i]();
+       }
+}
+
+static void run_linker_funcs(void)
+{
+       run_links(__linkerfunc1start, __linkerfunc1end);
+       run_links(__linkerfunc2start, __linkerfunc2end);
+       run_links(__linkerfunc3start, __linkerfunc3end);
+       run_links(__linkerfunc4start, __linkerfunc4end);
+}
+
+/* You need to reference PROVIDE symbols somewhere, or they won't be included.
+ * Only really a problem for debugging. */
+void debug_linker_tables(void)
+{
+       extern struct dev __devtabstart[];
+       extern struct dev __devtabend[];
+       printk("devtab %p %p\nlink1 %p %p\nlink2 %p %p\nlink3 %p %p\nlink4 %p %p\n",
+              __devtabstart,
+              __devtabend,
+                  __linkerfunc1start,
+                  __linkerfunc1end,
+                  __linkerfunc2start,
+                  __linkerfunc2end,
+                  __linkerfunc3start,
+                  __linkerfunc3end,
+                  __linkerfunc4start,
+                  __linkerfunc4end);
+}
+
 #endif //Everything For Free